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xen: Update Kconfig to Linux v5.4

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This patch updates Kconfig to a more recent version of Kconfig, found
in Linux v5.4.0, 219d54332a09 ("Linux 5.4").

With the updated version of Kconfig, other changes are necessary to
avoid breaking the build.

Kconfig files:
- fix Kconfig files that where using option env=*:
  Since Linux commit 104daea149c4 ("kconfig: reference environment
  variables directly and remove 'option env='"), we can access the
  environment directly via $() and "option env=" as been removed.
- CONFIG_EXPERT='y' will now appear in .config file if
  XEN_CONFIG_EXPERT=y in the environment. The alternative is to change
  "EXPERT" to "$(XEN_CONFIG_EXPERT)" in all Kconfig files.

Makefile:
- silentoldconfig target as been removed from Kconfig. To update
  include/generated/autoconf.h, we need to use syncconfig target
  instead.

Makefile.kconfig:
- Import newer needed code from Linux's Makefile.lib and
  Kbuild.include and Makefile.build.
- Set Q to empty, Xen build system doesn't silence commands. Having Q
  empty mean we can import stuff from Linux without having to remove the
  leading $(Q) from build commands. And quiet='' means commands will be
  echoed.
- Add $(PHONY) to .PHONY. Like it is intended by Kbuild.

Makefile.host is also updated and copied from Linux.

Dependency change:
- Now depends on flex/bison, maybe we could _shipped those files like
  before. Linux doesn't do that anymore.

The .gitignore in kconfig/ has more entries, compared to upstream, for
file generated by Makefile.host.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
This commit is contained in:
Anthony PERARD authored and Andrew Cooper committed 2020-01-30 11:54:33 +00:00
1 parent 9b71d6a759
commit f80fe2b34f
112 files changed
+5605 -8034
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docs/misc/kconfig-language.rst
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================
Kconfig Language
================
Introduction
------------
The configuration database is a collection of configuration options
organized in a tree structure::
+- Code maturity level options
| +- Prompt for development and/or incomplete code/drivers
+- General setup
| +- Networking support
| +- System V IPC
| +- BSD Process Accounting
| +- Sysctl support
+- Loadable module support
| +- Enable loadable module support
| +- Set version information on all module symbols
| +- Kernel module loader
+- ...
Every entry has its own dependencies. These dependencies are used
to determine the visibility of an entry. Any child entry is only
visible if its parent entry is also visible.
Menu entries
------------
Most entries define a config option; all other entries help to organize
them. A single configuration option is defined like this::
config MODVERSIONS
bool "Set version information on all module symbols"
depends on MODULES
help
Usually, modules have to be recompiled whenever you switch to a new
kernel. ...
Every line starts with a key word and can be followed by multiple
arguments. "config" starts a new config entry. The following lines
define attributes for this config option. Attributes can be the type of
the config option, input prompt, dependencies, help text and default
values. A config option can be defined multiple times with the same
name, but every definition can have only a single input prompt and the
type must not conflict.
Menu attributes
---------------
A menu entry can have a number of attributes. Not all of them are
applicable everywhere (see syntax).
- type definition: "bool"/"tristate"/"string"/"hex"/"int"
Every config option must have a type. There are only two basic types:
tristate and string; the other types are based on these two. The type
definition optionally accepts an input prompt, so these two examples
are equivalent::
bool "Networking support"
and::
bool
prompt "Networking support"
- input prompt: "prompt" <prompt> ["if" <expr>]
Every menu entry can have at most one prompt, which is used to display
to the user. Optionally dependencies only for this prompt can be added
with "if".
- default value: "default" <expr> ["if" <expr>]
A config option can have any number of default values. If multiple
default values are visible, only the first defined one is active.
Default values are not limited to the menu entry where they are
defined. This means the default can be defined somewhere else or be
overridden by an earlier definition.
The default value is only assigned to the config symbol if no other
value was set by the user (via the input prompt above). If an input
prompt is visible the default value is presented to the user and can
be overridden by him.
Optionally, dependencies only for this default value can be added with
"if".
The default value deliberately defaults to 'n' in order to avoid bloating the
build. With few exceptions, new config options should not change this. The
intent is for "make oldconfig" to add as little as possible to the config from
release to release.
Note:
Things that merit "default y/m" include:
a) A new Kconfig option for something that used to always be built
should be "default y".
b) A new gatekeeping Kconfig option that hides/shows other Kconfig
options (but does not generate any code of its own), should be
"default y" so people will see those other options.
c) Sub-driver behavior or similar options for a driver that is
"default n". This allows you to provide sane defaults.
d) Hardware or infrastructure that everybody expects, such as CONFIG_NET
or CONFIG_BLOCK. These are rare exceptions.
- type definition + default value::
"def_bool"/"def_tristate" <expr> ["if" <expr>]
This is a shorthand notation for a type definition plus a value.
Optionally dependencies for this default value can be added with "if".
- dependencies: "depends on" <expr>
This defines a dependency for this menu entry. If multiple
dependencies are defined, they are connected with '&&'. Dependencies
are applied to all other options within this menu entry (which also
accept an "if" expression), so these two examples are equivalent::
bool "foo" if BAR
default y if BAR
and::
depends on BAR
bool "foo"
default y
- reverse dependencies: "select" <symbol> ["if" <expr>]
While normal dependencies reduce the upper limit of a symbol (see
below), reverse dependencies can be used to force a lower limit of
another symbol. The value of the current menu symbol is used as the
minimal value <symbol> can be set to. If <symbol> is selected multiple
times, the limit is set to the largest selection.
Reverse dependencies can only be used with boolean or tristate
symbols.
Note:
select should be used with care. select will force
a symbol to a value without visiting the dependencies.
By abusing select you are able to select a symbol FOO even
if FOO depends on BAR that is not set.
In general use select only for non-visible symbols
(no prompts anywhere) and for symbols with no dependencies.
That will limit the usefulness but on the other hand avoid
the illegal configurations all over.
- weak reverse dependencies: "imply" <symbol> ["if" <expr>]
This is similar to "select" as it enforces a lower limit on another
symbol except that the "implied" symbol's value may still be set to n
from a direct dependency or with a visible prompt.
Given the following example::
config FOO
tristate
imply BAZ
config BAZ
tristate
depends on BAR
The following values are possible:
=== === ============= ==============
FOO BAR BAZ's default choice for BAZ
=== === ============= ==============
n y n N/m/y
m y m M/y/n
y y y Y/n
y n * N
=== === ============= ==============
This is useful e.g. with multiple drivers that want to indicate their
ability to hook into a secondary subsystem while allowing the user to
configure that subsystem out without also having to unset these drivers.
- limiting menu display: "visible if" <expr>
This attribute is only applicable to menu blocks, if the condition is
false, the menu block is not displayed to the user (the symbols
contained there can still be selected by other symbols, though). It is
similar to a conditional "prompt" attribute for individual menu
entries. Default value of "visible" is true.
- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
This allows to limit the range of possible input values for int
and hex symbols. The user can only input a value which is larger than
or equal to the first symbol and smaller than or equal to the second
symbol.
- help text: "help" or "---help---"
This defines a help text. The end of the help text is determined by
the indentation level, this means it ends at the first line which has
a smaller indentation than the first line of the help text.
"---help---" and "help" do not differ in behaviour, "---help---" is
used to help visually separate configuration logic from help within
the file as an aid to developers.
- misc options: "option" <symbol>[=<value>]
Various less common options can be defined via this option syntax,
which can modify the behaviour of the menu entry and its config
symbol. These options are currently possible:
- "defconfig_list"
This declares a list of default entries which can be used when
looking for the default configuration (which is used when the main
.config doesn't exists yet.)
- "modules"
This declares the symbol to be used as the MODULES symbol, which
enables the third modular state for all config symbols.
At most one symbol may have the "modules" option set.
- "allnoconfig_y"
This declares the symbol as one that should have the value y when
using "allnoconfig". Used for symbols that hide other symbols.
Menu dependencies
-----------------
Dependencies define the visibility of a menu entry and can also reduce
the input range of tristate symbols. The tristate logic used in the
expressions uses one more state than normal boolean logic to express the
module state. Dependency expressions have the following syntax::
<expr> ::= <symbol> (1)
<symbol> '=' <symbol> (2)
<symbol> '!=' <symbol> (3)
<symbol1> '<' <symbol2> (4)
<symbol1> '>' <symbol2> (4)
<symbol1> '<=' <symbol2> (4)
<symbol1> '>=' <symbol2> (4)
'(' <expr> ')' (5)
'!' <expr> (6)
<expr> '&&' <expr> (7)
<expr> '||' <expr> (8)
Expressions are listed in decreasing order of precedence.
(1) Convert the symbol into an expression. Boolean and tristate symbols
are simply converted into the respective expression values. All
other symbol types result in 'n'.
(2) If the values of both symbols are equal, it returns 'y',
otherwise 'n'.
(3) If the values of both symbols are equal, it returns 'n',
otherwise 'y'.
(4) If value of <symbol1> is respectively lower, greater, lower-or-equal,
or greater-or-equal than value of <symbol2>, it returns 'y',
otherwise 'n'.
(5) Returns the value of the expression. Used to override precedence.
(6) Returns the result of (2-/expr/).
(7) Returns the result of min(/expr/, /expr/).
(8) Returns the result of max(/expr/, /expr/).
An expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2
respectively for calculations). A menu entry becomes visible when its
expression evaluates to 'm' or 'y'.
There are two types of symbols: constant and non-constant symbols.
Non-constant symbols are the most common ones and are defined with the
'config' statement. Non-constant symbols consist entirely of alphanumeric
characters or underscores.
Constant symbols are only part of expressions. Constant symbols are
always surrounded by single or double quotes. Within the quote, any
other character is allowed and the quotes can be escaped using '\'.
Menu structure
--------------
The position of a menu entry in the tree is determined in two ways. First
it can be specified explicitly::
menu "Network device support"
depends on NET
config NETDEVICES
...
endmenu
All entries within the "menu" ... "endmenu" block become a submenu of
"Network device support". All subentries inherit the dependencies from
the menu entry, e.g. this means the dependency "NET" is added to the
dependency list of the config option NETDEVICES.
The other way to generate the menu structure is done by analyzing the
dependencies. If a menu entry somehow depends on the previous entry, it
can be made a submenu of it. First, the previous (parent) symbol must
be part of the dependency list and then one of these two conditions
must be true:
- the child entry must become invisible, if the parent is set to 'n'
- the child entry must only be visible, if the parent is visible::
config MODULES
bool "Enable loadable module support"
config MODVERSIONS
bool "Set version information on all module symbols"
depends on MODULES
comment "module support disabled"
depends on !MODULES
MODVERSIONS directly depends on MODULES, this means it's only visible if
MODULES is different from 'n'. The comment on the other hand is only
visible when MODULES is set to 'n'.
Kconfig syntax
--------------
The configuration file describes a series of menu entries, where every
line starts with a keyword (except help texts). The following keywords
end a menu entry:
- config
- menuconfig
- choice/endchoice
- comment
- menu/endmenu
- if/endif
- source
The first five also start the definition of a menu entry.
config::
"config" <symbol>
<config options>
This defines a config symbol <symbol> and accepts any of above
attributes as options.
menuconfig::
"menuconfig" <symbol>
<config options>
This is similar to the simple config entry above, but it also gives a
hint to front ends, that all suboptions should be displayed as a
separate list of options. To make sure all the suboptions will really
show up under the menuconfig entry and not outside of it, every item
from the <config options> list must depend on the menuconfig symbol.
In practice, this is achieved by using one of the next two constructs::
(1):
menuconfig M
if M
config C1
config C2
endif
(2):
menuconfig M
config C1
depends on M
config C2
depends on M
In the following examples (3) and (4), C1 and C2 still have the M
dependency, but will not appear under menuconfig M anymore, because
of C0, which doesn't depend on M::
(3):
menuconfig M
config C0
if M
config C1
config C2
endif
(4):
menuconfig M
config C0
config C1
depends on M
config C2
depends on M
choices::
"choice" [symbol]
<choice options>
<choice block>
"endchoice"
This defines a choice group and accepts any of the above attributes as
options. A choice can only be of type bool or tristate. If no type is
specified for a choice, its type will be determined by the type of
the first choice element in the group or remain unknown if none of the
choice elements have a type specified, as well.
While a boolean choice only allows a single config entry to be
selected, a tristate choice also allows any number of config entries
to be set to 'm'. This can be used if multiple drivers for a single
hardware exists and only a single driver can be compiled/loaded into
the kernel, but all drivers can be compiled as modules.
A choice accepts another option "optional", which allows to set the
choice to 'n' and no entry needs to be selected.
If no [symbol] is associated with a choice, then you can not have multiple
definitions of that choice. If a [symbol] is associated to the choice,
then you may define the same choice (i.e. with the same entries) in another
place.
comment::
"comment" <prompt>
<comment options>
This defines a comment which is displayed to the user during the
configuration process and is also echoed to the output files. The only
possible options are dependencies.
menu::
"menu" <prompt>
<menu options>
<menu block>
"endmenu"
This defines a menu block, see "Menu structure" above for more
information. The only possible options are dependencies and "visible"
attributes.
if::
"if" <expr>
<if block>
"endif"
This defines an if block. The dependency expression <expr> is appended
to all enclosed menu entries.
source::
"source" <prompt>
This reads the specified configuration file. This file is always parsed.
mainmenu::
"mainmenu" <prompt>
This sets the config program's title bar if the config program chooses
to use it. It should be placed at the top of the configuration, before any
other statement.
'#' Kconfig source file comment:
An unquoted '#' character anywhere in a source file line indicates
the beginning of a source file comment. The remainder of that line
is a comment.
Kconfig hints
-------------
This is a collection of Kconfig tips, most of which aren't obvious at
first glance and most of which have become idioms in several Kconfig
files.
Adding common features and make the usage configurable
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It is a common idiom to implement a feature/functionality that are
relevant for some architectures but not all.
The recommended way to do so is to use a config variable named HAVE_*
that is defined in a common Kconfig file and selected by the relevant
architectures.
An example is the generic IOMAP functionality.
We would in lib/Kconfig see::
# Generic IOMAP is used to ...
config HAVE_GENERIC_IOMAP
config GENERIC_IOMAP
depends on HAVE_GENERIC_IOMAP && FOO
And in lib/Makefile we would see::
obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
For each architecture using the generic IOMAP functionality we would see::
config X86
select ...
select HAVE_GENERIC_IOMAP
select ...
Note: we use the existing config option and avoid creating a new
config variable to select HAVE_GENERIC_IOMAP.
Note: the use of the internal config variable HAVE_GENERIC_IOMAP, it is
introduced to overcome the limitation of select which will force a
config option to 'y' no matter the dependencies.
The dependencies are moved to the symbol GENERIC_IOMAP and we avoid the
situation where select forces a symbol equals to 'y'.
Adding features that need compiler support
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
There are several features that need compiler support. The recommended way
to describe the dependency on the compiler feature is to use "depends on"
followed by a test macro::
config STACKPROTECTOR
bool "Stack Protector buffer overflow detection"
depends on $(cc-option,-fstack-protector)
...
If you need to expose a compiler capability to makefiles and/or C source files,
`CC_HAS_` is the recommended prefix for the config option::
config CC_HAS_STACKPROTECTOR_NONE
def_bool $(cc-option,-fno-stack-protector)
Build as module only
~~~~~~~~~~~~~~~~~~~~
To restrict a component build to module-only, qualify its config symbol
with "depends on m". E.g.::
config FOO
depends on BAR && m
limits FOO to module (=m) or disabled (=n).
Kconfig recursive dependency limitations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you've hit the Kconfig error: "recursive dependency detected" you've run
into a recursive dependency issue with Kconfig, a recursive dependency can be
summarized as a circular dependency. The kconfig tools need to ensure that
Kconfig files comply with specified configuration requirements. In order to do
that kconfig must determine the values that are possible for all Kconfig
symbols, this is currently not possible if there is a circular relation
between two or more Kconfig symbols. For more details refer to the "Simple
Kconfig recursive issue" subsection below. Kconfig does not do recursive
dependency resolution; this has a few implications for Kconfig file writers.
We'll first explain why this issues exists and then provide an example
technical limitation which this brings upon Kconfig developers. Eager
developers wishing to try to address this limitation should read the next
subsections.
Simple Kconfig recursive issue
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Read: Documentation/kbuild/Kconfig.recursion-issue-01
Test with::
make KBUILD_KCONFIG=Documentation/kbuild/Kconfig.recursion-issue-01 allnoconfig
Cumulative Kconfig recursive issue
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Read: Documentation/kbuild/Kconfig.recursion-issue-02
Test with::
make KBUILD_KCONFIG=Documentation/kbuild/Kconfig.recursion-issue-02 allnoconfig
Practical solutions to kconfig recursive issue
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Developers who run into the recursive Kconfig issue have two options
at their disposal. We document them below and also provide a list of
historical issues resolved through these different solutions.
a) Remove any superfluous "select FOO" or "depends on FOO"
b) Match dependency semantics:
b1) Swap all "select FOO" to "depends on FOO" or,
b2) Swap all "depends on FOO" to "select FOO"
The resolution to a) can be tested with the sample Kconfig file
Documentation/kbuild/Kconfig.recursion-issue-01 through the removal
of the "select CORE" from CORE_BELL_A_ADVANCED as that is implicit already
since CORE_BELL_A depends on CORE. At times it may not be possible to remove
some dependency criteria, for such cases you can work with solution b).
The two different resolutions for b) can be tested in the sample Kconfig file
Documentation/kbuild/Kconfig.recursion-issue-02.
Below is a list of examples of prior fixes for these types of recursive issues;
all errors appear to involve one or more select's and one or more "depends on".
============ ===================================
commit fix
============ ===================================
06b718c01208 select A -> depends on A
c22eacfe82f9 depends on A -> depends on B
6a91e854442c select A -> depends on A
118c565a8f2e select A -> select B
f004e5594705 select A -> depends on A
c7861f37b4c6 depends on A -> (null)
80c69915e5fb select A -> (null) (1)
c2218e26c0d0 select A -> depends on A (1)
d6ae99d04e1c select A -> depends on A
95ca19cf8cbf select A -> depends on A
8f057d7bca54 depends on A -> (null)
8f057d7bca54 depends on A -> select A
a0701f04846e select A -> depends on A
0c8b92f7f259 depends on A -> (null)
e4e9e0540928 select A -> depends on A (2)
7453ea886e87 depends on A > (null) (1)
7b1fff7e4fdf select A -> depends on A
86c747d2a4f0 select A -> depends on A
d9f9ab51e55e select A -> depends on A
0c51a4d8abd6 depends on A -> select A (3)
e98062ed6dc4 select A -> depends on A (3)
91e5d284a7f1 select A -> (null)
============ ===================================
(1) Partial (or no) quote of error.
(2) That seems to be the gist of that fix.
(3) Same error.
Future kconfig work
~~~~~~~~~~~~~~~~~~~
Work on kconfig is welcomed on both areas of clarifying semantics and on
evaluating the use of a full SAT solver for it. A full SAT solver can be
desirable to enable more complex dependency mappings and / or queries,
for instance on possible use case for a SAT solver could be that of handling
the current known recursive dependency issues. It is not known if this would
address such issues but such evaluation is desirable. If support for a full SAT
solver proves too complex or that it cannot address recursive dependency issues
Kconfig should have at least clear and well defined semantics which also
addresses and documents limitations or requirements such as the ones dealing
with recursive dependencies.
Further work on both of these areas is welcomed on Kconfig. We elaborate
on both of these in the next two subsections.
Semantics of Kconfig
~~~~~~~~~~~~~~~~~~~~
The use of Kconfig is broad, Linux is now only one of Kconfig's users:
one study has completed a broad analysis of Kconfig use in 12 projects [0]_.
Despite its widespread use, and although this document does a reasonable job
in documenting basic Kconfig syntax a more precise definition of Kconfig
semantics is welcomed. One project deduced Kconfig semantics through
the use of the xconfig configurator [1]_. Work should be done to confirm if
the deduced semantics matches our intended Kconfig design goals.
Having well defined semantics can be useful for tools for practical
evaluation of depenencies, for instance one such use known case was work to
express in boolean abstraction of the inferred semantics of Kconfig to
translate Kconfig logic into boolean formulas and run a SAT solver on this to
find dead code / features (always inactive), 114 dead features were found in
Linux using this methodology [1]_ (Section 8: Threats to validity).
Confirming this could prove useful as Kconfig stands as one of the the leading
industrial variability modeling languages [1]_ [2]_. Its study would help
evaluate practical uses of such languages, their use was only theoretical
and real world requirements were not well understood. As it stands though
only reverse engineering techniques have been used to deduce semantics from
variability modeling languages such as Kconfig [3]_.
.. [0] http://www.eng.uwaterloo.ca/~shshe/kconfig_semantics.pdf
.. [1] http://gsd.uwaterloo.ca/sites/default/files/vm-2013-berger.pdf
.. [2] http://gsd.uwaterloo.ca/sites/default/files/ase241-berger_0.pdf
.. [3] http://gsd.uwaterloo.ca/sites/default/files/icse2011.pdf
Full SAT solver for Kconfig
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Although SAT solvers [4]_ haven't yet been used by Kconfig directly, as noted
in the previous subsection, work has been done however to express in boolean
abstraction the inferred semantics of Kconfig to translate Kconfig logic into
boolean formulas and run a SAT solver on it [5]_. Another known related project
is CADOS [6]_ (former VAMOS [7]_) and the tools, mainly undertaker [8]_, which
has been introduced first with [9]_. The basic concept of undertaker is to
exract variability models from Kconfig, and put them together with a
propositional formula extracted from CPP #ifdefs and build-rules into a SAT
solver in order to find dead code, dead files, and dead symbols. If using a SAT
solver is desirable on Kconfig one approach would be to evaluate repurposing
such efforts somehow on Kconfig. There is enough interest from mentors of
existing projects to not only help advise how to integrate this work upstream
but also help maintain it long term. Interested developers should visit:
http://kernelnewbies.org/KernelProjects/kconfig-sat
.. [4] http://www.cs.cornell.edu/~sabhar/chapters/SATSolvers-KR-Handbook.pdf
.. [5] http://gsd.uwaterloo.ca/sites/default/files/vm-2013-berger.pdf
.. [6] https://cados.cs.fau.de
.. [7] https://vamos.cs.fau.de
.. [8] https://undertaker.cs.fau.de
.. [9] https://www4.cs.fau.de/Publications/2011/tartler_11_eurosys.pdf
docs/misc/kconfig-language.txt
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Introduction
------------
The configuration database is a collection of configuration options
organized in a tree structure:
+- Code maturity level options
| +- Prompt for development and/or incomplete code/drivers
+- General setup
| +- Networking support
| +- System V IPC
| +- BSD Process Accounting
| +- Sysctl support
+- Loadable module support
| +- Enable loadable module support
| +- Set version information on all module symbols
| +- Kernel module loader
+- ...
Every entry has its own dependencies. These dependencies are used
to determine the visibility of an entry. Any child entry is only
visible if its parent entry is also visible.
Menu entries
------------
Most entries define a config option; all other entries help to organize
them. A single configuration option is defined like this:
config MODVERSIONS
bool "Set version information on all module symbols"
depends on MODULES
help
Usually, modules have to be recompiled whenever you switch to a new
kernel. ...
Every line starts with a key word and can be followed by multiple
arguments. "config" starts a new config entry. The following lines
define attributes for this config option. Attributes can be the type of
the config option, input prompt, dependencies, help text and default
values. A config option can be defined multiple times with the same
name, but every definition can have only a single input prompt and the
type must not conflict.
Menu attributes
---------------
A menu entry can have a number of attributes. Not all of them are
applicable everywhere (see syntax).
- type definition: "bool"/"tristate"/"string"/"hex"/"int"
Every config option must have a type. There are only two basic types:
tristate and string; the other types are based on these two. The type
definition optionally accepts an input prompt, so these two examples
are equivalent:
bool "Networking support"
and
bool
prompt "Networking support"
- input prompt: "prompt" <prompt> ["if" <expr>]
Every menu entry can have at most one prompt, which is used to display
to the user. Optionally dependencies only for this prompt can be added
with "if".
- default value: "default" <expr> ["if" <expr>]
A config option can have any number of default values. If multiple
default values are visible, only the first defined one is active.
Default values are not limited to the menu entry where they are
defined. This means the default can be defined somewhere else or be
overridden by an earlier definition.
The default value is only assigned to the config symbol if no other
value was set by the user (via the input prompt above). If an input
prompt is visible the default value is presented to the user and can
be overridden by him.
Optionally, dependencies only for this default value can be added with
"if".
- type definition + default value:
"def_bool"/"def_tristate" <expr> ["if" <expr>]
This is a shorthand notation for a type definition plus a value.
Optionally dependencies for this default value can be added with "if".
- dependencies: "depends on" <expr>
This defines a dependency for this menu entry. If multiple
dependencies are defined, they are connected with '&&'. Dependencies
are applied to all other options within this menu entry (which also
accept an "if" expression), so these two examples are equivalent:
bool "foo" if BAR
default y if BAR
and
depends on BAR
bool "foo"
default y
- reverse dependencies: "select" <symbol> ["if" <expr>]
While normal dependencies reduce the upper limit of a symbol (see
below), reverse dependencies can be used to force a lower limit of
another symbol. The value of the current menu symbol is used as the
minimal value <symbol> can be set to. If <symbol> is selected multiple
times, the limit is set to the largest selection.
Reverse dependencies can only be used with boolean or tristate
symbols.
Note:
select should be used with care. select will force
a symbol to a value without visiting the dependencies.
By abusing select you are able to select a symbol FOO even
if FOO depends on BAR that is not set.
In general use select only for non-visible symbols
(no prompts anywhere) and for symbols with no dependencies.
That will limit the usefulness but on the other hand avoid
the illegal configurations all over.
- limiting menu display: "visible if" <expr>
This attribute is only applicable to menu blocks, if the condition is
false, the menu block is not displayed to the user (the symbols
contained there can still be selected by other symbols, though). It is
similar to a conditional "prompt" attribute for individual menu
entries. Default value of "visible" is true.
- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
This allows to limit the range of possible input values for int
and hex symbols. The user can only input a value which is larger than
or equal to the first symbol and smaller than or equal to the second
symbol.
- help text: "help" or "---help---"
This defines a help text. The end of the help text is determined by
the indentation level, this means it ends at the first line which has
a smaller indentation than the first line of the help text.
"---help---" and "help" do not differ in behaviour, "---help---" is
used to help visually separate configuration logic from help within
the file as an aid to developers.
- misc options: "option" <symbol>[=<value>]
Various less common options can be defined via this option syntax,
which can modify the behaviour of the menu entry and its config
symbol. These options are currently possible:
- "defconfig_list"
This declares a list of default entries which can be used when
looking for the default configuration (which is used when the main
.config doesn't exists yet.)
- "modules"
This declares the symbol to be used as the MODULES symbol, which
enables the third modular state for all config symbols.
At most one symbol may have the "modules" option set.
- "env"=<value>
This imports the environment variable into Kconfig. It behaves like
a default, except that the value comes from the environment, this
also means that the behaviour when mixing it with normal defaults is
undefined at this point. The symbol is currently not exported back
to the build environment (if this is desired, it can be done via
another symbol).
- "allnoconfig_y"
This declares the symbol as one that should have the value y when
using "allnoconfig". Used for symbols that hide other symbols.
Menu dependencies
-----------------
Dependencies define the visibility of a menu entry and can also reduce
the input range of tristate symbols. The tristate logic used in the
expressions uses one more state than normal boolean logic to express the
module state. Dependency expressions have the following syntax:
<expr> ::= <symbol> (1)
<symbol> '=' <symbol> (2)
<symbol> '!=' <symbol> (3)
'(' <expr> ')' (4)
'!' <expr> (5)
<expr> '&&' <expr> (6)
<expr> '||' <expr> (7)
Expressions are listed in decreasing order of precedence.
(1) Convert the symbol into an expression. Boolean and tristate symbols
are simply converted into the respective expression values. All
other symbol types result in 'n'.
(2) If the values of both symbols are equal, it returns 'y',
otherwise 'n'.
(3) If the values of both symbols are equal, it returns 'n',
otherwise 'y'.
(4) Returns the value of the expression. Used to override precedence.
(5) Returns the result of (2-/expr/).
(6) Returns the result of min(/expr/, /expr/).
(7) Returns the result of max(/expr/, /expr/).
An expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2
respectively for calculations). A menu entry becomes visible when its
expression evaluates to 'm' or 'y'.
There are two types of symbols: constant and non-constant symbols.
Non-constant symbols are the most common ones and are defined with the
'config' statement. Non-constant symbols consist entirely of alphanumeric
characters or underscores.
Constant symbols are only part of expressions. Constant symbols are
always surrounded by single or double quotes. Within the quote, any
other character is allowed and the quotes can be escaped using '\'.
Menu structure
--------------
The position of a menu entry in the tree is determined in two ways. First
it can be specified explicitly:
menu "Network device support"
depends on NET
config NETDEVICES
...
endmenu
All entries within the "menu" ... "endmenu" block become a submenu of
"Network device support". All subentries inherit the dependencies from
the menu entry, e.g. this means the dependency "NET" is added to the
dependency list of the config option NETDEVICES.
The other way to generate the menu structure is done by analyzing the
dependencies. If a menu entry somehow depends on the previous entry, it
can be made a submenu of it. First, the previous (parent) symbol must
be part of the dependency list and then one of these two conditions
must be true:
- the child entry must become invisible, if the parent is set to 'n'
- the child entry must only be visible, if the parent is visible
config MODULES
bool "Enable loadable module support"
config MODVERSIONS
bool "Set version information on all module symbols"
depends on MODULES
comment "module support disabled"
depends on !MODULES
MODVERSIONS directly depends on MODULES, this means it's only visible if
MODULES is different from 'n'. The comment on the other hand is always
visible when MODULES is visible (the (empty) dependency of MODULES is
also part of the comment dependencies).
Kconfig syntax
--------------
The configuration file describes a series of menu entries, where every
line starts with a keyword (except help texts). The following keywords
end a menu entry:
- config
- menuconfig
- choice/endchoice
- comment
- menu/endmenu
- if/endif
- source
The first five also start the definition of a menu entry.
config:
"config" <symbol>
<config options>
This defines a config symbol <symbol> and accepts any of above
attributes as options.
menuconfig:
"menuconfig" <symbol>
<config options>
This is similar to the simple config entry above, but it also gives a
hint to front ends, that all suboptions should be displayed as a
separate list of options.
choices:
"choice" [symbol]
<choice options>
<choice block>
"endchoice"
This defines a choice group and accepts any of the above attributes as
options. A choice can only be of type bool or tristate, while a boolean
choice only allows a single config entry to be selected, a tristate
choice also allows any number of config entries to be set to 'm'. This
can be used if multiple drivers for a single hardware exists and only a
single driver can be compiled/loaded into the kernel, but all drivers
can be compiled as modules.
A choice accepts another option "optional", which allows to set the
choice to 'n' and no entry needs to be selected.
If no [symbol] is associated with a choice, then you can not have multiple
definitions of that choice. If a [symbol] is associated to the choice,
then you may define the same choice (ie. with the same entries) in another
place.
comment:
"comment" <prompt>
<comment options>
This defines a comment which is displayed to the user during the
configuration process and is also echoed to the output files. The only
possible options are dependencies.
menu:
"menu" <prompt>
<menu options>
<menu block>
"endmenu"
This defines a menu block, see "Menu structure" above for more
information. The only possible options are dependencies and "visible"
attributes.
if:
"if" <expr>
<if block>
"endif"
This defines an if block. The dependency expression <expr> is appended
to all enclosed menu entries.
source:
"source" <prompt>
This reads the specified configuration file. This file is always parsed.
mainmenu:
"mainmenu" <prompt>
This sets the config program's title bar if the config program chooses
to use it. It should be placed at the top of the configuration, before any
other statement.
Kconfig hints
-------------
This is a collection of Kconfig tips, most of which aren't obvious at
first glance and most of which have become idioms in several Kconfig
files.
Adding common features and make the usage configurable
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It is a common idiom to implement a feature/functionality that are
relevant for some architectures but not all.
The recommended way to do so is to use a config variable named HAVE_*
that is defined in a common Kconfig file and selected by the relevant
architectures.
An example is the generic IOMAP functionality.
We would in lib/Kconfig see:
# Generic IOMAP is used to ...
config HAVE_GENERIC_IOMAP
config GENERIC_IOMAP
depends on HAVE_GENERIC_IOMAP && FOO
And in lib/Makefile we would see:
obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
For each architecture using the generic IOMAP functionality we would see:
config X86
select ...
select HAVE_GENERIC_IOMAP
select ...
Note: we use the existing config option and avoid creating a new
config variable to select HAVE_GENERIC_IOMAP.
Note: the use of the internal config variable HAVE_GENERIC_IOMAP, it is
introduced to overcome the limitation of select which will force a
config option to 'y' no matter the dependencies.
The dependencies are moved to the symbol GENERIC_IOMAP and we avoid the
situation where select forces a symbol equals to 'y'.
Build as module only
~~~~~~~~~~~~~~~~~~~~
To restrict a component build to module-only, qualify its config symbol
with "depends on m". E.g.:
config FOO
depends on BAR && m
limits FOO to module (=m) or disabled (=n).
docs/misc/kconfig-macro-language.rst
+247
View File
@@ -0,0 +1,247 @@
======================
Kconfig macro language
======================
Concept
-------
The basic idea was inspired by Make. When we look at Make, we notice sort of
two languages in one. One language describes dependency graphs consisting of
targets and prerequisites. The other is a macro language for performing textual
substitution.
There is clear distinction between the two language stages. For example, you
can write a makefile like follows::
APP := foo
SRC := foo.c
CC := gcc
$(APP): $(SRC)
$(CC) -o $(APP) $(SRC)
The macro language replaces the variable references with their expanded form,
and handles as if the source file were input like follows::
foo: foo.c
gcc -o foo foo.c
Then, Make analyzes the dependency graph and determines the targets to be
updated.
The idea is quite similar in Kconfig - it is possible to describe a Kconfig
file like this::
CC := gcc
config CC_HAS_FOO
def_bool $(shell, $(srctree)/scripts/gcc-check-foo.sh $(CC))
The macro language in Kconfig processes the source file into the following
intermediate::
config CC_HAS_FOO
def_bool y
Then, Kconfig moves onto the evaluation stage to resolve inter-symbol
dependency as explained in kconfig-language.txt.
Variables
---------
Like in Make, a variable in Kconfig works as a macro variable. A macro
variable is expanded "in place" to yield a text string that may then be
expanded further. To get the value of a variable, enclose the variable name in
$( ). The parentheses are required even for single-letter variable names; $X is
a syntax error. The curly brace form as in ${CC} is not supported either.
There are two types of variables: simply expanded variables and recursively
expanded variables.
A simply expanded variable is defined using the := assignment operator. Its
righthand side is expanded immediately upon reading the line from the Kconfig
file.
A recursively expanded variable is defined using the = assignment operator.
Its righthand side is simply stored as the value of the variable without
expanding it in any way. Instead, the expansion is performed when the variable
is used.
There is another type of assignment operator; += is used to append text to a
variable. The righthand side of += is expanded immediately if the lefthand
side was originally defined as a simple variable. Otherwise, its evaluation is
deferred.
The variable reference can take parameters, in the following form::
$(name,arg1,arg2,arg3)
You can consider the parameterized reference as a function. (more precisely,
"user-defined function" in contrast to "built-in function" listed below).
Useful functions must be expanded when they are used since the same function is
expanded differently if different parameters are passed. Hence, a user-defined
function is defined using the = assignment operator. The parameters are
referenced within the body definition with $(1), $(2), etc.
In fact, recursively expanded variables and user-defined functions are the same
internally. (In other words, "variable" is "function with zero argument".)
When we say "variable" in a broad sense, it includes "user-defined function".
Built-in functions
------------------
Like Make, Kconfig provides several built-in functions. Every function takes a
particular number of arguments.
In Make, every built-in function takes at least one argument. Kconfig allows
zero argument for built-in functions, such as $(fileno), $(lineno). You could
consider those as "built-in variable", but it is just a matter of how we call
it after all. Let's say "built-in function" here to refer to natively supported
functionality.
Kconfig currently supports the following built-in functions.
- $(shell,command)
The "shell" function accepts a single argument that is expanded and passed
to a subshell for execution. The standard output of the command is then read
and returned as the value of the function. Every newline in the output is
replaced with a space. Any trailing newlines are deleted. The standard error
is not returned, nor is any program exit status.
- $(info,text)
The "info" function takes a single argument and prints it to stdout.
It evaluates to an empty string.
- $(warning-if,condition,text)
The "warning-if" function takes two arguments. If the condition part is "y",
the text part is sent to stderr. The text is prefixed with the name of the
current Kconfig file and the current line number.
- $(error-if,condition,text)
The "error-if" function is similar to "warning-if", but it terminates the
parsing immediately if the condition part is "y".
- $(filename)
The 'filename' takes no argument, and $(filename) is expanded to the file
name being parsed.
- $(lineno)
The 'lineno' takes no argument, and $(lineno) is expanded to the line number
being parsed.
Make vs Kconfig
---------------
Kconfig adopts Make-like macro language, but the function call syntax is
slightly different.
A function call in Make looks like this::
$(func-name arg1,arg2,arg3)
The function name and the first argument are separated by at least one
whitespace. Then, leading whitespaces are trimmed from the first argument,
while whitespaces in the other arguments are kept. You need to use a kind of
trick to start the first parameter with spaces. For example, if you want
to make "info" function print " hello", you can write like follows::
empty :=
space := $(empty) $(empty)
$(info $(space)$(space)hello)
Kconfig uses only commas for delimiters, and keeps all whitespaces in the
function call. Some people prefer putting a space after each comma delimiter::
$(func-name, arg1, arg2, arg3)
In this case, "func-name" will receive " arg1", " arg2", " arg3". The presence
of leading spaces may matter depending on the function. The same applies to
Make - for example, $(subst .c, .o, $(sources)) is a typical mistake; it
replaces ".c" with " .o".
In Make, a user-defined function is referenced by using a built-in function,
'call', like this::
$(call my-func,arg1,arg2,arg3)
Kconfig invokes user-defined functions and built-in functions in the same way.
The omission of 'call' makes the syntax shorter.
In Make, some functions treat commas verbatim instead of argument separators.
For example, $(shell echo hello, world) runs the command "echo hello, world".
Likewise, $(info hello, world) prints "hello, world" to stdout. You could say
this is _useful_ inconsistency.
In Kconfig, for simpler implementation and grammatical consistency, commas that
appear in the $( ) context are always delimiters. It means::
$(shell, echo hello, world)
is an error because it is passing two parameters where the 'shell' function
accepts only one. To pass commas in arguments, you can use the following trick::
comma := ,
$(shell, echo hello$(comma) world)
Caveats
-------
A variable (or function) cannot be expanded across tokens. So, you cannot use
a variable as a shorthand for an expression that consists of multiple tokens.
The following works::
RANGE_MIN := 1
RANGE_MAX := 3
config FOO
int "foo"
range $(RANGE_MIN) $(RANGE_MAX)
But, the following does not work::
RANGES := 1 3
config FOO
int "foo"
range $(RANGES)
A variable cannot be expanded to any keyword in Kconfig. The following does
not work::
MY_TYPE := tristate
config FOO
$(MY_TYPE) "foo"
default y
Obviously from the design, $(shell command) is expanded in the textual
substitution phase. You cannot pass symbols to the 'shell' function.
The following does not work as expected::
config ENDIAN_FLAG
string
default "-mbig-endian" if CPU_BIG_ENDIAN
default "-mlittle-endian" if CPU_LITTLE_ENDIAN
config CC_HAS_ENDIAN_FLAG
def_bool $(shell $(srctree)/scripts/gcc-check-flag ENDIAN_FLAG)
Instead, you can do like follows so that any function call is statically
expanded::
config CC_HAS_ENDIAN_FLAG
bool
default $(shell $(srctree)/scripts/gcc-check-flag -mbig-endian) if CPU_BIG_ENDIAN
default $(shell $(srctree)/scripts/gcc-check-flag -mlittle-endian) if CPU_LITTLE_ENDIAN
docs/misc/kconfig.txt → docs/misc/kconfig.rst
+126 -59
View File
@@ -1,14 +1,17 @@
This file contains some assistance for using "make *config".
===================
Kconfig make config
===================
This file contains some assistance for using `make *config`.
Use "make help" to list all of the possible configuration targets.
The xconfig ('qconf') and menuconfig ('mconf') programs also
have embedded help text. Be sure to check it for navigation,
search, and other general help text.
The xconfig ('qconf'), menuconfig ('mconf'), and nconfig ('nconf')
programs also have embedded help text. Be sure to check that for
navigation, search, and other general help text.
======================================================================
General
--------------------------------------------------
-------
New kernel releases often introduce new config symbols. Often more
important, new kernel releases may rename config symbols. When
@@ -17,48 +20,55 @@ this happens, using a previously working .config file and running
for you, so you may find that you need to see what NEW kernel
symbols have been introduced.
To see a list of new config symbols when using "make oldconfig", use
To see a list of new config symbols, use::
cp user/some/old.config .config
make listnewconfig
and the config program will list any new symbols, one per line.
Alternatively, you can use the brute force method::
make oldconfig
scripts/diffconfig .config.old .config | less
______________________________________________________________________
Environment variables for '*config'
----------------------------------------------------------------------
Environment variables for `*config`
KCONFIG_CONFIG
--------------------------------------------------
--------------
This environment variable can be used to specify a default kernel config
file name to override the default name of ".config".
KCONFIG_OVERWRITECONFIG
--------------------------------------------------
-----------------------
If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
break symlinks when .config is a symlink to somewhere else.
CONFIG_
--------------------------------------------------
If you set CONFIG_ in the environment, Kconfig will prefix all symbols
`CONFIG_`
---------
If you set `CONFIG_` in the environment, Kconfig will prefix all symbols
with its value when saving the configuration, instead of using the default,
"CONFIG_".
`CONFIG_`.
----------------------------------------------------------------------
______________________________________________________________________
Environment variables for '{allyes/allmod/allno/rand}config'
KCONFIG_ALLCONFIG
--------------------------------------------------
-----------------
(partially based on lkml email from/by Rob Landley, re: miniconfig)
--------------------------------------------------
The allyesconfig/allmodconfig/allnoconfig/randconfig variants can also
use the environment variable KCONFIG_ALLCONFIG as a flag or a filename
that contains config symbols that the user requires to be set to a
specific value. If KCONFIG_ALLCONFIG is used without a filename where
KCONFIG_ALLCONFIG == "" or KCONFIG_ALLCONFIG == "1", "make *config"
KCONFIG_ALLCONFIG == "" or KCONFIG_ALLCONFIG == "1", `make *config`
checks for a file named "all{yes/mod/no/def/random}.config"
(corresponding to the *config command that was used) for symbol values
(corresponding to the `*config` command that was used) for symbol values
that are to be forced. If this file is not found, it checks for a
file named "all.config" to contain forced values.
@@ -71,43 +81,55 @@ This 'KCONFIG_ALLCONFIG' file is a config file which contains
(usually a subset of all) preset config symbols. These variable
settings are still subject to normal dependency checks.
Examples:
Examples::
KCONFIG_ALLCONFIG=custom-notebook.config make allnoconfig
or
or::
KCONFIG_ALLCONFIG=mini.config make allnoconfig
or
or::
make KCONFIG_ALLCONFIG=mini.config allnoconfig
These examples will disable most options (allnoconfig) but enable or
disable the options that are explicitly listed in the specified
mini-config files.
______________________________________________________________________
----------------------------------------------------------------------
Environment variables for 'randconfig'
KCONFIG_SEED
--------------------------------------------------
------------
You can set this to the integer value used to seed the RNG, if you want
to somehow debug the behaviour of the kconfig parser/frontends.
If not set, the current time will be used.
KCONFIG_PROBABILITY
--------------------------------------------------
-------------------
This variable can be used to skew the probabilities. This variable can
be unset or empty, or set to three different formats:
======================= ================== =====================
KCONFIG_PROBABILITY y:n split y:m:n split
-----------------------------------------------------------------
======================= ================== =====================
unset or empty 50 : 50 33 : 33 : 34
N N : 100-N N/2 : N/2 : 100-N
[1] N:M N+M : 100-(N+M) N : M : 100-(N+M)
[2] N:M:L N : 100-N M : L : 100-(M+L)
======================= ================== =====================
where N, M and L are integers (in base 10) in the range [0,100], and so
that:
[1] N+M is in the range [0,100]
[2] M+L is in the range [0,100]
Examples:
Examples::
KCONFIG_PROBABILITY=10
10% of booleans will be set to 'y', 90% to 'n'
5% of tristates will be set to 'y', 5% to 'm', 90% to 'n'
@@ -118,34 +140,36 @@ Examples:
10% of booleans will be set to 'y', 90% to 'n'
15% of tristates will be set to 'y', 15% to 'm', 70% to 'n'
______________________________________________________________________
Environment variables for 'silentoldconfig'
----------------------------------------------------------------------
Environment variables for 'syncconfig'
KCONFIG_NOSILENTUPDATE
--------------------------------------------------
----------------------
If this variable has a non-blank value, it prevents silent kernel
config updates (requires explicit updates).
KCONFIG_AUTOCONFIG
--------------------------------------------------
------------------
This environment variable can be set to specify the path & name of the
"auto.conf" file. Its default value is "include/config/auto.conf".
KCONFIG_TRISTATE
--------------------------------------------------
----------------
This environment variable can be set to specify the path & name of the
"tristate.conf" file. Its default value is "include/config/tristate.conf".
KCONFIG_AUTOHEADER
--------------------------------------------------
------------------
This environment variable can be set to specify the path & name of the
"autoconf.h" (header) file.
Its default value is "include/generated/autoconf.h".
======================================================================
----------------------------------------------------------------------
menuconfig
--------------------------------------------------
----------
SEARCHING for CONFIG symbols
@@ -155,56 +179,98 @@ Searching in menuconfig:
names, so you have to know something close to what you are
looking for.
Example:
Example::
/hotplug
This lists all config symbols that contain "hotplug",
e.g., HOTPLUG_CPU, MEMORY_HOTPLUG.
For search help, enter / followed TAB-TAB-TAB (to highlight
For search help, enter / followed by TAB-TAB (to highlight
<Help>) and Enter. This will tell you that you can also use
regular expressions (regexes) in the search string, so if you
are not interested in MEMORY_HOTPLUG, you could try
are not interested in MEMORY_HOTPLUG, you could try::
/^hotplug
When searching, symbols are sorted thus:
- first, exact matches, sorted alphabetically (an exact match
is when the search matches the complete symbol name);
- then, other matches, sorted alphabetically.
For example: ^ATH.K matches:
ATH5K ATH9K ATH5K_AHB ATH5K_DEBUG [...] ATH6KL ATH6KL_DEBUG
[...] ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_COMMON [...]
of which only ATH5K and ATH9K match exactly and so are sorted
first (and in alphabetical order), then come all other symbols,
sorted in alphabetical order.
______________________________________________________________________
----------------------------------------------------------------------
User interface options for 'menuconfig'
MENUCONFIG_COLOR
--------------------------------------------------
----------------
It is possible to select different color themes using the variable
MENUCONFIG_COLOR. To select a theme use:
MENUCONFIG_COLOR. To select a theme use::
make MENUCONFIG_COLOR=<theme> menuconfig
Available themes are:
mono => selects colors suitable for monochrome displays
blackbg => selects a color scheme with black background
classic => theme with blue background. The classic look
bluetitle => a LCD friendly version of classic. (default)
Available themes are::
- mono => selects colors suitable for monochrome displays
- blackbg => selects a color scheme with black background
- classic => theme with blue background. The classic look
- bluetitle => a LCD friendly version of classic. (default)
MENUCONFIG_MODE
--------------------------------------------------
---------------
This mode shows all sub-menus in one large tree.
Example:
Example::
make MENUCONFIG_MODE=single_menu menuconfig
----------------------------------------------------------------------
nconfig
-------
nconfig is an alternate text-based configurator. It lists function
keys across the bottom of the terminal (window) that execute commands.
You can also just use the corresponding numeric key to execute the
commands unless you are in a data entry window. E.g., instead of F6
for Save, you can just press 6.
Use F1 for Global help or F3 for the Short help menu.
Searching in nconfig:
You can search either in the menu entry "prompt" strings
or in the configuration symbols.
Use / to begin a search through the menu entries. This does
not support regular expressions. Use <Down> or <Up> for
Next hit and Previous hit, respectively. Use <Esc> to
terminate the search mode.
F8 (SymSearch) searches the configuration symbols for the
given string or regular expression (regex).
NCONFIG_MODE
------------
This mode shows all sub-menus in one large tree.
Example::
make NCONFIG_MODE=single_menu nconfig
----------------------------------------------------------------------
======================================================================
xconfig
--------------------------------------------------
-------
Searching in xconfig:
@@ -212,9 +278,12 @@ Searching in xconfig:
names, so you have to know something close to what you are
looking for.
Example:
Example::
Ctrl-F hotplug
or
or::
Menu: File, Search, hotplug
lists all config symbol entries that contain "hotplug" in
@@ -224,14 +293,12 @@ Searching in xconfig:
to return to the main menu.
======================================================================
----------------------------------------------------------------------
gconfig
--------------------------------------------------
-------
Searching in gconfig:
None (gconfig isn't maintained as well as xconfig or menuconfig);
however, gconfig does have a few more viewing choices than
xconfig does.
###
There is no search command in gconfig. However, gconfig does
have several different viewing choices, modes, and options.
xen/Kconfig
+3 -15
View File
@@ -2,24 +2,12 @@
# For a description of the syntax of this configuration file,
# see docs/misc/kconfig-language.txt
#
mainmenu "Xen/$SRCARCH $XEN_FULLVERSION Configuration"
config SRCARCH
string
option env="SRCARCH"
config ARCH
string
option env="ARCH"
mainmenu "Xen/$(SRCARCH) $(XEN_FULLVERSION) Configuration"
config BROKEN
bool
source "arch/$SRCARCH/Kconfig"
config XEN_FULLVERSION
string
option env="XEN_FULLVERSION"
source "arch/$(SRCARCH)/Kconfig"
config DEFCONFIG_LIST
string
@@ -28,7 +16,7 @@ config DEFCONFIG_LIST
config EXPERT
string
option env="XEN_CONFIG_EXPERT"
default y if "$(XEN_CONFIG_EXPERT)" = "y"
config LTO
bool "Link Time Optimisation"
xen/Makefile
+2 -2
View File
@@ -267,7 +267,7 @@ $(foreach base,arch/x86/mm/guest_walk_% \
arch/x86/mm/shadow/guest_%, \
$(foreach ext,o i s,$(call build-intermediate,$(base).$(ext))))
kconfig := silentoldconfig oldconfig config menuconfig defconfig \
kconfig := oldconfig config menuconfig defconfig \
nconfig xconfig gconfig savedefconfig listnewconfig olddefconfig \
randconfig $(notdir $(wildcard arch/$(SRCARCH)/configs/*_defconfig))
.PHONY: $(kconfig)
@@ -275,7 +275,7 @@ $(kconfig):
$(MAKE) -f $(BASEDIR)/tools/kconfig/Makefile.kconfig ARCH=$(ARCH) SRCARCH=$(SRCARCH) HOSTCC="$(HOSTCC)" HOSTCXX="$(HOSTCXX)" $@
include/config/%.conf: include/config/auto.conf.cmd $(KCONFIG_CONFIG)
$(MAKE) -f $(BASEDIR)/tools/kconfig/Makefile.kconfig ARCH=$(ARCH) SRCARCH=$(SRCARCH) HOSTCC="$(HOSTCC)" HOSTCXX="$(HOSTCXX)" silentoldconfig
$(MAKE) -f $(BASEDIR)/tools/kconfig/Makefile.kconfig ARCH=$(ARCH) SRCARCH=$(SRCARCH) HOSTCC="$(HOSTCC)" HOSTCXX="$(HOSTCXX)" syncconfig
# Allow people to just run `make` as before and not force them to configure
$(KCONFIG_CONFIG):
xen/arch/arm/Kconfig
+1 -1
View File
@@ -1,6 +1,6 @@
config 64BIT
bool
default ARCH != "arm32"
default "$(ARCH)" != "arm32"
help
Say yes to build a 64-bit Xen
Say no to build a 32-bit Xen
xen/common/Kconfig
+2 -10
View File
@@ -69,14 +69,6 @@ config NEEDS_LIBELF
config NEEDS_LIST_SORT
bool
config HAS_BUILD_ID
string
option env="XEN_HAS_BUILD_ID"
config HAS_CHECKPOLICY
string
option env="XEN_HAS_CHECKPOLICY"
menu "Speculative hardening"
config SPECULATIVE_HARDEN_ARRAY
@@ -195,7 +187,7 @@ config XSM_FLASK_AVC_STATS
config XSM_FLASK_POLICY
bool "Compile Xen with a built-in FLASK security policy"
default y if HAS_CHECKPOLICY = "y"
default y if "$(XEN_HAS_CHECKPOLICY)" = "y"
depends on XSM_FLASK
---help---
This includes a default XSM policy in the hypervisor so that the
@@ -283,7 +275,7 @@ config CRYPTO
config LIVEPATCH
bool "Live patching support"
default X86
depends on HAS_BUILD_ID = "y"
depends on "$(XEN_HAS_BUILD_ID)" = "y"
---help---
Allows a running Xen hypervisor to be dynamically patched using
binary patches without rebooting. This is primarily used to binarily
xen/tools/kconfig/.gitignore
+1 -2
View File
@@ -1,12 +1,11 @@
#
# Generated files
#
config*
*.lex.c
*.tab.c
*.tab.h
zconf.hash.c
*.moc
*conf-cfg
#
# configuration programs
xen/tools/kconfig/Makefile
+97 -171
View File
@@ -1,9 +1,10 @@
# SPDX-License-Identifier: GPL-2.0
# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile
PHONY += xconfig gconfig menuconfig config silentoldconfig \
localmodconfig localyesconfig
PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig \
build_menuconfig build_nconfig build_gconfig build_xconfig
ifdef KBUILD_KCONFIG
Kconfig := $(KBUILD_KCONFIG)
@@ -11,6 +12,10 @@ else
Kconfig := Kconfig
endif
ifndef KBUILD_DEFCONFIG
KBUILD_DEFCONFIG := defconfig
endif
ifeq ($(quiet),silent_)
silent := -s
endif
@@ -33,49 +38,52 @@ config: $(obj)/conf
nconfig: $(obj)/nconf
$< $(silent) $(Kconfig)
silentoldconfig: $(obj)/conf
$(Q)mkdir -p include/config include/generated
$< $(silent) --$@ $(Kconfig)
build_menuconfig: $(obj)/mconf
localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
$(Q)mkdir -p include/config include/generated
$(Q)perl $< --$@ $(srctree) $(Kconfig) > .tmp.config
build_nconfig: $(obj)/nconf
build_gconfig: $(obj)/gconf
build_xconfig: $(obj)/qconf
localyesconfig localmodconfig: $(obj)/conf
$(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
$(Q)if [ -f .config ]; then \
cmp -s .tmp.config .config || \
(mv -f .config .config.old.1; \
mv -f .tmp.config .config; \
$(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
$< $(silent) --oldconfig $(Kconfig); \
mv -f .config.old.1 .config.old) \
else \
mv -f .tmp.config .config; \
$(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
$< $(silent) --oldconfig $(Kconfig); \
fi
$(Q)rm -f .tmp.config
# These targets map 1:1 to the commandline options of 'conf'
#
# Note:
# syncconfig has become an internal implementation detail and is now
# deprecated for external use
simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
alldefconfig randconfig listnewconfig olddefconfig
alldefconfig randconfig listnewconfig olddefconfig syncconfig
PHONY += $(simple-targets)
$(simple-targets): $(obj)/conf
$< $(silent) --$@ $(Kconfig)
PHONY += oldnoconfig savedefconfig defconfig
# oldnoconfig is an alias of olddefconfig, because people already are dependent
# on its behavior (sets new symbols to their default value but not 'n') with the
# counter-intuitive name.
oldnoconfig: olddefconfig
PHONY += savedefconfig defconfig
savedefconfig: $(obj)/conf
$< $(silent) --$@=defconfig $(Kconfig)
defconfig: $(obj)/conf
ifeq ($(KBUILD_DEFCONFIG),)
$< $(silent) --defconfig $(Kconfig)
else
ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
@$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
else
@$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
$(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
endif
%_defconfig: $(obj)/conf
@@ -86,7 +94,7 @@ configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/c
%.config: $(obj)/conf
$(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
+$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
PHONY += kvmconfig
kvmconfig: kvm_guest.config
@@ -100,18 +108,24 @@ PHONY += tinyconfig
tinyconfig:
$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
# CHECK: -o cache_dir=<path> working?
PHONY += testconfig
testconfig: $(obj)/conf
$(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \
-o cache_dir=$(abspath $(obj)/tests/.cache) \
$(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)
clean-files += tests/.cache
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@echo ' nconfig - Update current config utilising a ncurses menu based'
@echo ' program'
@echo ' nconfig - Update current config utilising a ncurses menu based program'
@echo ' menuconfig - Update current config utilising a menu based program'
@echo ' xconfig - Update current config utilising a Qt based front-end'
@echo ' gconfig - Update current config utilising a GTK+ based front-end'
@echo ' oldconfig - Update current config utilising a provided .config as base'
@echo ' localmodconfig - Update current config disabling modules not loaded'
@echo ' localyesconfig - Update current config converting local mods to core'
@echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
@echo ' defconfig - New config with default from ARCH supplied defconfig'
@echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
@echo ' allnoconfig - New config where all options are answered with no'
@@ -120,165 +134,77 @@ help:
@echo ' alldefconfig - New config with all symbols set to default'
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
@echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their'
@echo ' default value'
@echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
@echo ' default value without prompting'
@echo ' kvmconfig - Enable additional options for kvm guest kernel support'
@echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
@echo ' tinyconfig - Configure the tiniest possible kernel'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
# Use recursively expanded variables so we do not call gcc unless
# we really need to do so. (Do not call gcc as part of make mrproper)
HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
-DLOCALE
@echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)'
# ===========================================================================
# Shared Makefile for the various kconfig executables:
# conf: Used for defconfig, oldconfig and related targets
# nconf: Used for the nconfig target.
# Utilizes ncurses
# mconf: Used for the menuconfig target
# Utilizes the lxdialog package
# qconf: Used for the xconfig target
# Based on Qt which needs to be installed to compile it
# gconf: Used for the gconfig target
# Based on GTK+ which needs to be installed to compile it
# object files used by all kconfig flavours
common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
symbol.o
lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
$(obj)/lexer.lex.o: $(obj)/parser.tab.h
HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
conf-objs := conf.o zconf.tab.o
mconf-objs := mconf.o zconf.tab.o $(lxdialog)
nconf-objs := nconf.o zconf.tab.o nconf.gui.o
# conf: Used for defconfig, oldconfig and related targets
hostprogs-y += conf
conf-objs := conf.o $(common-objs)
# nconf: Used for the nconfig target based on ncurses
hostprogs-y += nconf
nconf-objs := nconf.o nconf.gui.o $(common-objs)
HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
# mconf: Used for the menuconfig target based on lxdialog
hostprogs-y += mconf
lxdialog := $(addprefix lxdialog/, \
checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
mconf-objs := mconf.o $(lxdialog) $(common-objs)
HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
$(foreach f, mconf.o $(lxdialog), \
$(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
# qconf: Used for the xconfig target based on Qt
hostprogs-y += qconf
qconf-cxxobjs := qconf.o
qconf-objs := zconf.tab.o
gconf-objs := gconf.o zconf.tab.o
qconf-objs := images.o $(common-objs)
hostprogs-y := conf nconf mconf qconf gconf
HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
clean-files += zconf.tab.c zconf.lex.c zconf.hash.c
# Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
PHONY += $(obj)/dochecklxdialog
$(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog
$(obj)/dochecklxdialog:
$(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
always := dochecklxdialog
# generated files seem to need this to find local include files
HOSTCFLAGS_zconf.lex.o := -I$(src)
HOSTCFLAGS_zconf.tab.o := -I$(src)
LEX_PREFIX_zconf := zconf
YACC_PREFIX_zconf := zconf
HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
-Wno-missing-prototypes
HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
HOSTLOADLIBES_nconf = $(shell \
pkg-config --libs menuw panelw ncursesw 2>/dev/null \
|| pkg-config --libs menu panel ncurses 2>/dev/null \
|| echo "-lmenu -lpanel -lncurses" )
$(obj)/qconf.o: $(obj)/.tmp_qtcheck
ifeq ($(MAKECMDGOALS),xconfig)
$(obj)/.tmp_qtcheck: $(src)/Makefile
-include $(obj)/.tmp_qtcheck
# Qt needs some extra effort...
$(obj)/.tmp_qtcheck:
@set -e; $(kecho) " CHECK qt"; dir=""; pkg=""; \
if ! pkg-config --exists QtCore 2> /dev/null; then \
echo "* Unable to find the Qt4 tool qmake. Trying to use Qt3"; \
pkg-config --exists qt 2> /dev/null && pkg=qt; \
pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
if [ -n "$$pkg" ]; then \
cflags="\$$(shell pkg-config $$pkg --cflags)"; \
libs="\$$(shell pkg-config $$pkg --libs)"; \
moc="\$$(shell pkg-config $$pkg --variable=prefix)/bin/moc"; \
dir="$$(pkg-config $$pkg --variable=prefix)"; \
else \
for d in $$QTDIR /usr/share/qt* /usr/lib/qt*; do \
if [ -f $$d/include/qconfig.h ]; then dir=$$d; break; fi; \
done; \
if [ -z "$$dir" ]; then \
echo >&2 "*"; \
echo >&2 "* Unable to find any Qt installation. Please make sure that"; \
echo >&2 "* the Qt4 or Qt3 development package is correctly installed and"; \
echo >&2 "* either qmake can be found or install pkg-config or set"; \
echo >&2 "* the QTDIR environment variable to the correct location."; \
echo >&2 "*"; \
false; \
fi; \
libpath=$$dir/lib; lib=qt; osdir=""; \
$(HOSTCXX) -print-multi-os-directory > /dev/null 2>&1 && \
osdir=x$$($(HOSTCXX) -print-multi-os-directory); \
test -d $$libpath/$$osdir && libpath=$$libpath/$$osdir; \
test -f $$libpath/libqt-mt.so && lib=qt-mt; \
cflags="-I$$dir/include"; \
libs="-L$$libpath -Wl,-rpath,$$libpath -l$$lib"; \
moc="$$dir/bin/moc"; \
fi; \
if [ ! -x $$dir/bin/moc -a -x /usr/bin/moc ]; then \
echo "*"; \
echo "* Unable to find $$dir/bin/moc, using /usr/bin/moc instead."; \
echo "*"; \
moc="/usr/bin/moc"; \
fi; \
else \
cflags="\$$(shell pkg-config QtCore QtGui Qt3Support --cflags)"; \
libs="\$$(shell pkg-config QtCore QtGui Qt3Support --libs)"; \
moc="\$$(shell pkg-config QtCore --variable=moc_location)"; \
[ -n "$$moc" ] || moc="\$$(shell pkg-config QtCore --variable=prefix)/bin/moc"; \
fi; \
echo "KC_QT_CFLAGS=$$cflags" > $@; \
echo "KC_QT_LIBS=$$libs" >> $@; \
echo "KC_QT_MOC=$$moc" >> $@
endif
$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
ifeq ($(MAKECMDGOALS),gconfig)
-include $(obj)/.tmp_gtkcheck
# GTK+ needs some extra effort, too...
$(obj)/.tmp_gtkcheck:
@if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
touch $@; \
else \
echo >&2 "*"; \
echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \
echo >&2 "*"; \
false; \
fi \
else \
echo >&2 "*"; \
echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \
echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \
echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
echo >&2 "*"; \
false; \
fi
endif
$(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c
$(obj)/qconf.o: $(obj)/qconf.moc
$(obj)/qconf.o: $(obj)/qconf-cfg $(obj)/qconf.moc
quiet_cmd_moc = MOC $@
cmd_moc = $(KC_QT_MOC) -i $< -o $@
cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) -i $< -o $@
$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
$(obj)/%.moc: $(src)/%.h $(obj)/qconf-cfg
$(call cmd,moc)
# gconf: Used for the gconfig target based on GTK+
hostprogs-y += gconf
gconf-objs := gconf.o images.o $(common-objs)
HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs)
HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags)
$(obj)/gconf.o: $(obj)/gconf-cfg
# check if necessary packages are available, and configure build flags
filechk_conf_cfg = $(CONFIG_SHELL) $<
$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
$(call filechk,conf_cfg)
clean-files += *conf-cfg
xen/tools/kconfig/Makefile.host
+86 -33
View File
@@ -1,3 +1,21 @@
# SPDX-License-Identifier: GPL-2.0
# LEX
# ---------------------------------------------------------------------------
quiet_cmd_flex = LEX $@
cmd_flex = $(LEX) -o$@ -L $<
$(obj)/%.lex.c: $(src)/%.l FORCE
$(call if_changed,flex)
# YACC
# ---------------------------------------------------------------------------
quiet_cmd_bison = YACC $(basename $@).[ch]
cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $<
$(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
$(call if_changed,bison)
# ==========================================================================
# Building binaries on the host system
# Binaries are used during the compilation of the kernel, for example
@@ -5,7 +23,7 @@
#
# Both C and C++ are supported, but preferred language is C for such utilities.
#
# Sample syntax (see Documentation/kbuild/makefiles.txt for reference)
# Sample syntax (see Documentation/kbuild/makefiles.rst for reference)
# hostprogs-y := bin2hex
# Will compile bin2hex.c and create an executable named bin2hex
#
@@ -21,6 +39,8 @@
# They are linked as C++ code to the executable qconf
__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
# C code
# Executables compiled from a single .c file
@@ -42,42 +62,38 @@ host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
# C++ Object (.o) files compiled from .cc files
host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
# output directory for programs/.o files
# hostprogs-y := tools/build may have been specified.
# Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation
host-objdirs := $(dir $(__hostprogs) $(host-cobjs) $(host-cxxobjs))
# Object (.o) files used by the shared libaries
host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
__hostprogs := $(addprefix $(obj)/,$(__hostprogs))
host-csingle := $(addprefix $(obj)/,$(host-csingle))
host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
obj-dirs += $(host-objdirs)
host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
#####
# Handle options to gcc. Support building with separate output directory
_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
$(HOSTCFLAGS_$(basetarget).o)
_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
$(HOSTCXXFLAGS_$(basetarget).o)
_hostc_flags = $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
$(HOSTCFLAGS_$(target-stem).o)
_hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
$(HOSTCXXFLAGS_$(target-stem).o)
ifeq ($(KBUILD_SRC),)
__hostc_flags = $(_hostc_flags)
__hostcxx_flags = $(_hostcxx_flags)
else
__hostc_flags = -I$(obj) $(call flags,_hostc_flags)
__hostcxx_flags = -I$(obj) $(call flags,_hostcxx_flags)
# $(objtree)/$(obj) for including generated headers from checkin source files
ifeq ($(KBUILD_EXTMOD),)
ifdef building_out_of_srctree
_hostc_flags += -I $(objtree)/$(obj)
_hostcxx_flags += -I $(objtree)/$(obj)
endif
endif
hostc_flags = -Wp,-MD,$(depfile) $(__hostc_flags)
hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags)
hostc_flags = -Wp,-MD,$(depfile) $(_hostc_flags)
hostcxx_flags = -Wp,-MD,$(depfile) $(_hostcxx_flags)
#####
# Compile programs on the host
@@ -85,17 +101,17 @@ hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags)
# Create executable from a single .c file
# host-csingle -> Executable
quiet_cmd_host-csingle = HOSTCC $@
cmd_host-csingle = $(HOSTCC) $(hostc_flags) -o $@ $< \
$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(KBUILD_HOSTLDFLAGS) -o $@ $< \
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem))
$(host-csingle): $(obj)/%: $(src)/%.c FORCE
$(call if_changed_dep,host-csingle)
# Link an executable based on list of .o files, all plain c
# host-cmulti -> executable
quiet_cmd_host-cmulti = HOSTLD $@
cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
$(addprefix $(obj)/,$($(@F)-objs)) \
$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
cmd_host-cmulti = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ \
$(addprefix $(obj)/, $($(target-stem)-objs)) \
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem))
$(host-cmulti): FORCE
$(call if_changed,host-cmulti)
$(call multi_depend, $(host-cmulti), , -objs)
@@ -110,10 +126,10 @@ $(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
# Link an executable based on list of .o files, a mixture of .c and .cc
# host-cxxmulti -> executable
quiet_cmd_host-cxxmulti = HOSTLD $@
cmd_host-cxxmulti = $(HOSTCXX) $(HOSTLDFLAGS) -o $@ \
cmd_host-cxxmulti = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -o $@ \
$(foreach o,objs cxxobjs,\
$(addprefix $(obj)/,$($(@F)-$(o)))) \
$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(addprefix $(obj)/, $($(target-stem)-$(o)))) \
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem))
$(host-cxxmulti): FORCE
$(call if_changed,host-cxxmulti)
$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs)
@@ -124,5 +140,42 @@ quiet_cmd_host-cxxobjs = HOSTCXX $@
$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
$(call if_changed_dep,host-cxxobjs)
# Compile .c file, create position independent .o file
# host-cshobjs -> .o
quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
$(call if_changed_dep,host-cshobjs)
# Compile .c file, create position independent .o file
# Note that plugin capable gcc versions can be either C or C++ based
# therefore plugin source files have to be compilable in both C and C++ mode.
# This is why a C++ compiler is invoked on a .c file.
# host-cxxshobjs -> .o
quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@
cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
$(call if_changed_dep,host-cxxshobjs)
# Link a shared library, based on position independent .o files
# *.o -> .so shared library (host-cshlib)
quiet_cmd_host-cshlib = HOSTLLD -shared $@
cmd_host-cshlib = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
$(addprefix $(obj)/, $($(target-stem)-objs)) \
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
$(host-cshlib): FORCE
$(call if_changed,host-cshlib)
$(call multi_depend, $(host-cshlib), .so, -objs)
# Link a shared library, based on position independent .o files
# *.o -> .so shared library (host-cxxshlib)
quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
cmd_host-cxxshlib = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
$(addprefix $(obj)/, $($(target-stem)-objs)) \
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
$(host-cxxshlib): FORCE
$(call if_changed,host-cxxshlib)
$(call multi_depend, $(host-cxxshlib), .so, -objs)
targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
$(host-cxxmulti) $(host-cxxobjs)
$(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
xen/tools/kconfig/Makefile.kconfig
+48 -4
View File
@@ -4,8 +4,8 @@
all:
# Xen doesn't have a silent build flag
quiet := silent_
Q := @
quiet :=
Q :=
kecho := :
# eventually you'll want to do out of tree builds
@@ -13,16 +13,44 @@ srctree := $(XEN_ROOT)/xen
objtree := $(srctree)
src := tools/kconfig
obj := $(src)
KBUILD_SRC :=
# handle functions (most of these lifted from different Linux makefiles
dot-target = $(dir $@).$(notdir $@)
depfile = $(subst $(comma),,$(dot-target).d)
basetarget = $(basename $(notdir $@))
# target with $(obj)/ and its suffix stripped
target-stem = $(basename $(patsubst $(obj)/%,%,$@))
cmd = $(cmd_$(1))
if_changed = $(cmd_$(1))
if_changed_dep = $(cmd_$(1))
###
# filechk is used to check if the content of a generated file is updated.
# Sample usage:
#
# filechk_sample = echo $(KERNELRELEASE)
# version.h: FORCE
# $(call filechk,sample)
#
# The rule defined shall write to stdout the content of the new file.
# The existing file will be compared with the new one.
# - If no file exist it is created
# - If the content differ the new file is used
# - If they are equal no change, and no timestamp update
# - stdin is piped in from the first prerequisite ($<) so one has
# to specify a valid file as first prerequisite (often the kbuild file)
define filechk
$(Q)set -e; \
mkdir -p $(dir $@); \
{ $(filechk_$(1)); } > $@.tmp; \
if [ -r $@ ] && cmp -s $@ $@.tmp; then \
rm -f $@.tmp; \
else \
$(kecho) ' UPD $@'; \
mv -f $@.tmp $@; \
fi
endef
define multi_depend
$(foreach m, $(notdir $1), \
$(eval $(obj)/$m: \
@@ -38,6 +66,8 @@ CONFIG_SHELL := $(SHELL)
# provide the host compiler
HOSTCC ?= gcc
HOSTCXX ?= g++
YACC = $(if $(BISON),$(BISON),bison)
LEX = $(if $(FLEX),$(FLEX),flex)
# force target
PHONY += FORCE
@@ -48,6 +78,18 @@ FORCE:
include $(src)/Makefile
include $(src)/Makefile.host
# Add intermediate targets:
# When building objects with specific suffix patterns, add intermediate
# targets that the final targets are derived from.
intermediate_targets = $(foreach sfx, $(2), \
$(patsubst %$(strip $(1)),%$(sfx), \
$(filter %$(strip $(1)), $(targets))))
# %.lex.o <- %.lex.c <- %.l
# %.tab.o <- %.tab.[ch] <- %.y
targets += $(call intermediate_targets, .lex.o, .lex.c) \
$(call intermediate_targets, .tab.o, .tab.c .tab.h)
# clean up rule
clean-deps = $(foreach f,$(host-cobjs) $(host-cxxobjs),$(dir $f).$(notdir $f).d)
clean-shipped = $(patsubst %_shipped,%,$(wildcard $(obj)/*_shipped))
@@ -59,4 +101,6 @@ clean:
rm -rf $(clean-shipped)
$(obj)/zconf%: $(src)/zconf%_shipped
@cp -f $< $@
cp -f $< $@
.PHONY: $(PHONY)
xen/tools/kconfig/conf.c
+84 -101
View File
@@ -1,9 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -18,11 +19,10 @@
static void conf(struct menu *menu);
static void check_conf(struct menu *menu);
static void xfgets(char *str, int size, FILE *in);
enum input_mode {
oldaskconfig,
silentoldconfig,
syncconfig,
oldconfig,
allnoconfig,
allyesconfig,
@@ -33,14 +33,14 @@ enum input_mode {
savedefconfig,
listnewconfig,
olddefconfig,
} input_mode = oldaskconfig;
};
static enum input_mode input_mode = oldaskconfig;
static int indent = 1;
static int tty_stdio;
static int valid_stdin = 1;
static int sync_kconfig;
static int conf_cnt;
static char line[128];
static char line[PATH_MAX];
static struct menu *rootEntry;
static void print_help(struct menu *menu)
@@ -70,14 +70,14 @@ static void strip(char *str)
*p-- = 0;
}
static void check_stdin(void)
/* Helper function to facilitate fgets() by Jean Sacren. */
static void xfgets(char *str, int size, FILE *in)
{
if (!valid_stdin) {
printf("aborted!\n\n");
printf("Console input/output is redirected. ");
printf("Run 'make oldconfig' to update configuration.\n\n");
exit(1);
}
if (!fgets(str, size, in))
fprintf(stderr, "\nError in reading or end of file.\n");
if (!tty_stdio)
printf("%s", str);
}
static int conf_askvalue(struct symbol *sym, const char *def)
@@ -90,7 +90,7 @@ static int conf_askvalue(struct symbol *sym, const char *def)
line[0] = '\n';
line[1] = 0;
if (!sym_is_changable(sym)) {
if (!sym_is_changeable(sym)) {
printf("%s\n", def);
line[0] = '\n';
line[1] = 0;
@@ -99,18 +99,15 @@ static int conf_askvalue(struct symbol *sym, const char *def)
switch (input_mode) {
case oldconfig:
case silentoldconfig:
case syncconfig:
if (sym_has_value(sym)) {
printf("%s\n", def);
return 0;
}
check_stdin();
/* fall through */
case oldaskconfig:
fflush(stdout);
xfgets(line, 128, stdin);
if (!tty_stdio)
printf("\n");
xfgets(line, sizeof(line), stdin);
return 1;
default:
break;
@@ -190,9 +187,7 @@ static int conf_sym(struct menu *menu)
printf("/m");
if (oldval != yes && sym_tristate_within_range(sym, yes))
printf("/y");
if (menu_has_help(menu))
printf("/?");
printf("] ");
printf("/?] ");
if (!conf_askvalue(sym, sym_get_string_value(sym)))
return 0;
strip(line);
@@ -239,7 +234,7 @@ static int conf_choice(struct menu *menu)
sym = menu->sym;
is_new = !sym_has_value(sym);
if (sym_is_changable(sym)) {
if (sym_is_changeable(sym)) {
conf_sym(menu);
sym_calc_value(sym);
switch (sym_get_tristate_value(sym)) {
@@ -294,23 +289,19 @@ static int conf_choice(struct menu *menu)
printf("[1]: 1\n");
goto conf_childs;
}
printf("[1-%d", cnt);
if (menu_has_help(menu))
printf("?");
printf("]: ");
printf("[1-%d?]: ", cnt);
switch (input_mode) {
case oldconfig:
case silentoldconfig:
case syncconfig:
if (!is_new) {
cnt = def;
printf("%d\n", cnt);
break;
}
check_stdin();
/* fall through */
case oldaskconfig:
fflush(stdout);
xfgets(line, 128, stdin);
xfgets(line, sizeof(line), stdin);
strip(line);
if (line[0] == '?') {
print_help(menu);
@@ -366,10 +357,11 @@ static void conf(struct menu *menu)
switch (prop->type) {
case P_MENU:
if ((input_mode == silentoldconfig ||
input_mode == listnewconfig ||
input_mode == olddefconfig) &&
rootEntry != menu) {
/*
* Except in oldaskconfig mode, we show only menus that
* contain new symbols.
*/
if (input_mode != oldaskconfig && rootEntry != menu) {
check_conf(menu);
return;
}
@@ -426,13 +418,23 @@ static void check_conf(struct menu *menu)
sym = menu->sym;
if (sym && !sym_has_value(sym)) {
if (sym_is_changable(sym) ||
if (sym_is_changeable(sym) ||
(sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
if (input_mode == listnewconfig) {
if (sym->name && !sym_is_choice_value(sym)) {
printf("%s%s\n", CONFIG_, sym->name);
if (sym->name) {
const char *str;
if (sym->type == S_STRING) {
str = sym_get_string_value(sym);
str = sym_escape_string_value(str);
printf("%s%s=%s\n", CONFIG_, sym->name, str);
free((void *)str);
} else {
str = sym_get_string_value(sym);
printf("%s%s=%s\n", CONFIG_, sym->name, str);
}
} else if (input_mode != olddefconfig) {
}
} else {
if (!conf_cnt++)
printf("*\n* Restart config...\n*\n");
rootEntry = menu_get_parent_menu(menu);
@@ -448,8 +450,8 @@ static void check_conf(struct menu *menu)
static struct option long_opts[] = {
{"oldaskconfig", no_argument, NULL, oldaskconfig},
{"oldconfig", no_argument, NULL, oldconfig},
{"silentoldconfig", no_argument, NULL, silentoldconfig},
{"defconfig", optional_argument, NULL, defconfig},
{"syncconfig", no_argument, NULL, syncconfig},
{"defconfig", required_argument, NULL, defconfig},
{"savedefconfig", required_argument, NULL, savedefconfig},
{"allnoconfig", no_argument, NULL, allnoconfig},
{"allyesconfig", no_argument, NULL, allyesconfig},
@@ -458,12 +460,6 @@ static struct option long_opts[] = {
{"randconfig", no_argument, NULL, randconfig},
{"listnewconfig", no_argument, NULL, listnewconfig},
{"olddefconfig", no_argument, NULL, olddefconfig},
/*
* oldnoconfig is an alias of olddefconfig, because people already
* are dependent on its behavior(sets new symbols to their default
* value but not 'n') with the counter-intuitive name.
*/
{"oldnoconfig", no_argument, NULL, olddefconfig},
{NULL, 0, NULL, 0}
};
@@ -475,9 +471,9 @@ static void conf_usage(const char *progname)
printf(" --listnewconfig List new options\n");
printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
printf(" --oldconfig Update a configuration using a provided .config as base\n");
printf(" --silentoldconfig Same as oldconfig, but quietly, additionally update deps\n");
printf(" --olddefconfig Same as silentoldconfig but sets new symbols to their default value\n");
printf(" --oldnoconfig An alias of olddefconfig\n");
printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
" include/{generated/,config/}\n");
printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
printf(" --defconfig <file> New config with default defined in <file>\n");
printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
printf(" --allnoconfig New config where all options are answered with no\n");
@@ -492,9 +488,9 @@ int main(int ac, char **av)
const char *progname = av[0];
int opt;
const char *name, *defconfig_file = NULL /* gcc uninit */;
struct stat tmpstat;
int no_conf_write = 0;
tty_stdio = isatty(0) && isatty(1) && isatty(2);
tty_stdio = isatty(0) && isatty(1);
while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
if (opt == 's') {
@@ -503,7 +499,12 @@ int main(int ac, char **av)
}
input_mode = (enum input_mode)opt;
switch (opt) {
case silentoldconfig:
case syncconfig:
/*
* syncconfig is invoked during the build stage.
* Suppress distracting "configuration written to ..."
*/
conf_set_message_callback(NULL);
sync_kconfig = 1;
break;
case defconfig:
@@ -551,39 +552,27 @@ int main(int ac, char **av)
}
}
if (ac == optind) {
printf("%s: Kconfig file missing\n", av[0]);
fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
conf_usage(progname);
exit(1);
}
name = av[optind];
conf_parse(name);
//zconfdump(stdout);
if (sync_kconfig) {
name = conf_get_configname();
if (stat(name, &tmpstat)) {
fprintf(stderr, "***\n"
"*** Configuration file \"%s\" not found!\n"
"***\n"
"*** Please run some configurator (e.g. \"make oldconfig\" or\n"
"*** \"make menuconfig\" or \"make xconfig\").\n"
"***\n", name);
exit(1);
}
}
switch (input_mode) {
case defconfig:
if (!defconfig_file)
defconfig_file = conf_get_default_confname();
if (conf_read(defconfig_file)) {
printf("***\n"
fprintf(stderr,
"***\n"
"*** Can't find default configuration \"%s\"!\n"
"***\n", defconfig_file);
"***\n",
defconfig_file);
exit(1);
}
break;
case savedefconfig:
case silentoldconfig:
case syncconfig:
case oldaskconfig:
case oldconfig:
case listnewconfig:
@@ -628,15 +617,15 @@ int main(int ac, char **av)
}
if (sync_kconfig) {
if (conf_get_changed()) {
name = getenv("KCONFIG_NOSILENTUPDATE");
if (name && *name) {
if (conf_get_changed()) {
fprintf(stderr,
"\n*** The configuration requires explicit update.\n\n");
return 1;
}
no_conf_write = 1;
}
valid_stdin = tty_stdio;
}
switch (input_mode) {
@@ -664,54 +653,48 @@ int main(int ac, char **av)
case oldaskconfig:
rootEntry = &rootmenu;
conf(&rootmenu);
input_mode = silentoldconfig;
input_mode = oldconfig;
/* fall through */
case oldconfig:
case listnewconfig:
case olddefconfig:
case silentoldconfig:
case syncconfig:
/* Update until a loop caused no more changes */
do {
conf_cnt = 0;
check_conf(&rootmenu);
} while (conf_cnt &&
(input_mode != listnewconfig &&
input_mode != olddefconfig));
} while (conf_cnt);
break;
case olddefconfig:
default:
break;
}
if (sync_kconfig) {
/* silentoldconfig is used during the build so we shall update autoconf.
* All other commands are only used to generate a config.
*/
if (conf_get_changed() && conf_write(NULL)) {
fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
exit(1);
}
if (conf_write_autoconf()) {
fprintf(stderr, "\n*** Error during update of the configuration.\n\n");
return 1;
}
} else if (input_mode == savedefconfig) {
if (input_mode == savedefconfig) {
if (conf_write_defconfig(defconfig_file)) {
fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
defconfig_file);
return 1;
}
} else if (input_mode != listnewconfig) {
if (conf_write(NULL)) {
if (!no_conf_write && conf_write(NULL)) {
fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
exit(1);
}
/*
* Create auto.conf if it does not exist.
* This prevents GNU Make 4.1 or older from emitting
* "include/config/auto.conf: No such file or directory"
* in the top-level Makefile
*
* syncconfig always creates or updates auto.conf because it is
* used during the build.
*/
if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
fprintf(stderr,
"\n*** Error during sync of the configuration.\n\n");
return 1;
}
}
return 0;
}
/*
* Helper function to facilitate fgets() by Jean Sacren.
*/
void xfgets(char *str, int size, FILE *in)
{
if (fgets(str, size, in) == NULL)
fprintf(stderr, "\nError in reading or end of file.\n");
}
xen/tools/kconfig/confdata.c
+302 -183
View File
@@ -1,12 +1,14 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#include <sys/mman.h>
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
@@ -16,6 +18,151 @@
#include "lkc.h"
/* return true if 'path' exists, false otherwise */
static bool is_present(const char *path)
{
struct stat st;
return !stat(path, &st);
}
/* return true if 'path' exists and it is a directory, false otherwise */
static bool is_dir(const char *path)
{
struct stat st;
if (stat(path, &st))
return 0;
return S_ISDIR(st.st_mode);
}
/* return true if the given two files are the same, false otherwise */
static bool is_same(const char *file1, const char *file2)
{
int fd1, fd2;
struct stat st1, st2;
void *map1, *map2;
bool ret = false;
fd1 = open(file1, O_RDONLY);
if (fd1 < 0)
return ret;
fd2 = open(file2, O_RDONLY);
if (fd2 < 0)
goto close1;
ret = fstat(fd1, &st1);
if (ret)
goto close2;
ret = fstat(fd2, &st2);
if (ret)
goto close2;
if (st1.st_size != st2.st_size)
goto close2;
map1 = mmap(NULL, st1.st_size, PROT_READ, MAP_PRIVATE, fd1, 0);
if (map1 == MAP_FAILED)
goto close2;
map2 = mmap(NULL, st2.st_size, PROT_READ, MAP_PRIVATE, fd2, 0);
if (map2 == MAP_FAILED)
goto close2;
if (bcmp(map1, map2, st1.st_size))
goto close2;
ret = true;
close2:
close(fd2);
close1:
close(fd1);
return ret;
}
/*
* Create the parent directory of the given path.
*
* For example, if 'include/config/auto.conf' is given, create 'include/config'.
*/
static int make_parent_dir(const char *path)
{
char tmp[PATH_MAX + 1];
char *p;
strncpy(tmp, path, sizeof(tmp));
tmp[sizeof(tmp) - 1] = 0;
/* Remove the base name. Just return if nothing is left */
p = strrchr(tmp, '/');
if (!p)
return 0;
*(p + 1) = 0;
/* Just in case it is an absolute path */
p = tmp;
while (*p == '/')
p++;
while ((p = strchr(p, '/'))) {
*p = 0;
/* skip if the directory exists */
if (!is_dir(tmp) && mkdir(tmp, 0755))
return -1;
*p = '/';
while (*p == '/')
p++;
}
return 0;
}
static char depfile_path[PATH_MAX];
static size_t depfile_prefix_len;
/* touch depfile for symbol 'name' */
static int conf_touch_dep(const char *name)
{
int fd, ret;
const char *s;
char *d, c;
/* check overflow: prefix + name + ".h" + '\0' must fit in buffer. */
if (depfile_prefix_len + strlen(name) + 3 > sizeof(depfile_path))
return -1;
d = depfile_path + depfile_prefix_len;
s = name;
while ((c = *s++))
*d++ = (c == '_') ? '/' : tolower(c);
strcpy(d, ".h");
/* Assume directory path already exists. */
fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd == -1) {
if (errno != ENOENT)
return -1;
ret = make_parent_dir(depfile_path);
if (ret)
return ret;
/* Try it again. */
fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd == -1)
return -1;
}
close(fd);
return 0;
}
struct conf_printer {
void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
void (*print_comment)(FILE *, const char *, void *);
@@ -28,9 +175,7 @@ static void conf_message(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
static const char *conf_filename;
static int conf_lineno, conf_warnings, conf_unsaved;
const char conf_defname[] = "arch/$ARCH/defconfig";
static int conf_lineno, conf_warnings;
static void conf_warning(const char *fmt, ...)
{
@@ -43,16 +188,16 @@ static void conf_warning(const char *fmt, ...)
conf_warnings++;
}
static void conf_default_message_callback(const char *fmt, va_list ap)
static void conf_default_message_callback(const char *s)
{
printf("#\n# ");
vprintf(fmt, ap);
printf("%s", s);
printf("\n#\n");
}
static void (*conf_message_callback) (const char *fmt, va_list ap) =
static void (*conf_message_callback)(const char *s) =
conf_default_message_callback;
void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
void conf_set_message_callback(void (*fn)(const char *s))
{
conf_message_callback = fn;
}
@@ -60,10 +205,15 @@ void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
static void conf_message(const char *fmt, ...)
{
va_list ap;
char buf[4096];
if (!conf_message_callback)
return;
va_start(ap, fmt);
if (conf_message_callback)
conf_message_callback(fmt, ap);
vsnprintf(buf, sizeof(buf), fmt, ap);
conf_message_callback(buf);
va_end(ap);
}
@@ -74,55 +224,13 @@ const char *conf_get_configname(void)
return name ? name : ".config";
}
const char *conf_get_autoconfig_name(void)
static const char *conf_get_autoconfig_name(void)
{
char *name = getenv("KCONFIG_AUTOCONFIG");
return name ? name : "include/config/auto.conf";
}
static char *conf_expand_value(const char *in)
{
struct symbol *sym;
const char *src;
static char res_value[SYMBOL_MAXLENGTH];
char *dst, name[SYMBOL_MAXLENGTH];
res_value[0] = 0;
dst = name;
while ((src = strchr(in, '$'))) {
strncat(res_value, in, src - in);
src++;
dst = name;
while (isalnum(*src) || *src == '_')
*dst++ = *src++;
*dst = 0;
sym = sym_lookup(name, 0);
sym_calc_value(sym);
strcat(res_value, sym_get_string_value(sym));
in = src;
}
strcat(res_value, in);
return res_value;
}
char *conf_get_default_confname(void)
{
struct stat buf;
static char fullname[PATH_MAX+1];
char *env, *name;
name = conf_expand_value(conf_defname);
env = getenv(SRCTREE);
if (env) {
sprintf(fullname, "%s/%s", env, name);
if (!stat(fullname, &buf))
return fullname;
}
return name;
}
static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
{
char *p2;
@@ -150,14 +258,6 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
conf_warning("symbol value '%s' invalid for %s",
p, sym->name);
return 1;
case S_OTHER:
if (*p != '"') {
for (p2 = p; *p2 && !isspace(*p2); p2++)
;
sym->type = S_STRING;
goto done;
}
/* fall through */
case S_STRING:
if (*p++ != '"')
break;
@@ -176,9 +276,8 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
/* fall through */
case S_INT:
case S_HEX:
done:
if (sym_string_valid(sym, p)) {
sym->def[def].val = strdup(p);
sym->def[def].val = xstrdup(p);
sym->flags |= def_flags;
} else {
if (def != S_DEF_AUTO)
@@ -201,7 +300,7 @@ static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
if (new_size > *n) {
new_size += LINE_GROWTH - 1;
new_size *= 2;
nline = realloc(*lineptr, new_size);
nline = xrealloc(*lineptr, new_size);
if (!nline)
return -1;
@@ -267,16 +366,15 @@ int conf_read_simple(const char *name, int def)
if (in)
goto load;
sym_add_change_count(1);
if (!sym_defconfig_list) {
sym_calc_value(modules_sym);
if (!sym_defconfig_list)
return 1;
}
for_all_defaults(sym_defconfig_list, prop) {
if (expr_calc_value(prop->visible.expr) == no ||
prop->expr->type != E_SYMBOL)
continue;
name = conf_expand_value(prop->expr->left.sym->name);
sym_calc_value(prop->expr->left.sym);
name = sym_get_string_value(prop->expr->left.sym);
in = zconf_fopen(name);
if (in) {
conf_message("using defaults found in %s",
@@ -292,7 +390,6 @@ load:
conf_filename = name;
conf_lineno = 0;
conf_warnings = 0;
conf_unsaved = 0;
def_flags = SYMBOL_DEF << def;
for_all_symbols(i, sym) {
@@ -329,7 +426,7 @@ load:
sym = sym_find(line + 2 + strlen(CONFIG_));
if (!sym) {
sym_add_change_count(1);
goto setsym;
continue;
}
} else {
sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
@@ -359,17 +456,22 @@ load:
if (*p2 == '\r')
*p2 = 0;
}
if (def == S_DEF_USER) {
sym = sym_find(line + strlen(CONFIG_));
if (!sym) {
if (def == S_DEF_AUTO)
/*
* Reading from include/config/auto.conf
* If CONFIG_FOO previously existed in
* auto.conf but it is missing now,
* include/config/foo.h must be touched.
*/
conf_touch_dep(line + strlen(CONFIG_));
else
sym_add_change_count(1);
goto setsym;
}
} else {
sym = sym_lookup(line + strlen(CONFIG_), 0);
if (sym->type == S_UNKNOWN)
sym->type = S_OTHER;
continue;
}
if (sym->flags & def_flags) {
conf_warning("override: reassigning to symbol %s", sym->name);
}
@@ -377,10 +479,12 @@ load:
continue;
} else {
if (line[0] != '\r' && line[0] != '\n')
conf_warning("unexpected data");
conf_warning("unexpected data: %.*s",
(int)strcspn(line, "\r\n"), line);
continue;
}
setsym:
if (sym && sym_is_choice_value(sym)) {
struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
switch (sym->def[def].tri) {
@@ -403,34 +507,36 @@ setsym:
}
free(line);
fclose(in);
sym_calc_value(modules_sym);
return 0;
}
int conf_read(const char *name)
{
struct symbol *sym;
int conf_unsaved = 0;
int i;
sym_set_change_count(0);
if (conf_read_simple(name, S_DEF_USER))
if (conf_read_simple(name, S_DEF_USER)) {
sym_calc_value(modules_sym);
return 1;
}
sym_calc_value(modules_sym);
for_all_symbols(i, sym) {
sym_calc_value(sym);
if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))
continue;
if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
/* check that calculated value agrees with saved value */
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
break;
if (!sym_is_choice(sym))
if (sym->def[S_DEF_USER].tri == sym_get_tristate_value(sym))
continue;
/* fall through */
break;
default:
if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
continue;
@@ -629,7 +735,6 @@ static void conf_write_symbol(FILE *fp, struct symbol *sym,
const char *str;
switch (sym->type) {
case S_OTHER:
case S_UNKNOWN:
break;
case S_STRING:
@@ -689,7 +794,7 @@ int conf_write_defconfig(const char *filename)
goto next_menu;
sym->flags &= ~SYMBOL_WRITE;
/* If we cannot change the symbol - skip */
if (!sym_is_changable(sym))
if (!sym_is_changeable(sym))
goto next_menu;
/* If symbol equals to default value - skip */
if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
@@ -740,41 +845,36 @@ int conf_write(const char *name)
FILE *out;
struct symbol *sym;
struct menu *menu;
const char *basename;
const char *str;
char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
char tmpname[PATH_MAX + 1], oldname[PATH_MAX + 1];
char *env;
int i;
bool need_newline = false;
dirname[0] = 0;
if (name && name[0]) {
struct stat st;
char *slash;
if (!name)
name = conf_get_configname();
if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
strcpy(dirname, name);
strcat(dirname, "/");
basename = conf_get_configname();
} else if ((slash = strrchr(name, '/'))) {
int size = slash - name + 1;
memcpy(dirname, name, size);
dirname[size] = 0;
if (slash[1])
basename = slash + 1;
else
basename = conf_get_configname();
} else
basename = name;
} else
basename = conf_get_configname();
if (!*name) {
fprintf(stderr, "config name is empty\n");
return -1;
}
if (is_dir(name)) {
fprintf(stderr, "%s: Is a directory\n", name);
return -1;
}
if (make_parent_dir(name))
return -1;
sprintf(newname, "%s%s", dirname, basename);
env = getenv("KCONFIG_OVERWRITECONFIG");
if (!env || !*env) {
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
out = fopen(tmpname, "w");
} else {
if (env && *env) {
*tmpname = 0;
out = fopen(newname, "w");
out = fopen(name, "w");
} else {
snprintf(tmpname, sizeof(tmpname), "%s.%d.tmp",
name, (int)getpid());
out = fopen(tmpname, "w");
}
if (!out)
return 1;
@@ -795,12 +895,17 @@ int conf_write(const char *name)
"#\n"
"# %s\n"
"#\n", str);
} else if (!(sym->flags & SYMBOL_CHOICE)) {
need_newline = false;
} else if (!(sym->flags & SYMBOL_CHOICE) &&
!(sym->flags & SYMBOL_WRITTEN)) {
sym_calc_value(sym);
if (!(sym->flags & SYMBOL_WRITE))
goto next;
sym->flags &= ~SYMBOL_WRITE;
if (need_newline) {
fprintf(out, "\n");
need_newline = false;
}
sym->flags |= SYMBOL_WRITTEN;
conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
}
@@ -812,6 +917,12 @@ next:
if (menu->next)
menu = menu->next;
else while ((menu = menu->parent)) {
if (!menu->sym && menu_is_visible(menu) &&
menu != &rootmenu) {
str = menu_get_prompt(menu);
fprintf(out, "# end of %s\n", str);
need_newline = true;
}
if (menu->next) {
menu = menu->next;
break;
@@ -820,40 +931,76 @@ next:
}
fclose(out);
for_all_symbols(i, sym)
sym->flags &= ~SYMBOL_WRITTEN;
if (*tmpname) {
strcat(dirname, basename);
strcat(dirname, ".old");
rename(newname, dirname);
if (rename(tmpname, newname))
if (is_same(name, tmpname)) {
conf_message("No change to %s", name);
unlink(tmpname);
sym_set_change_count(0);
return 0;
}
snprintf(oldname, sizeof(oldname), "%s.old", name);
rename(name, oldname);
if (rename(tmpname, name))
return 1;
}
conf_message("configuration written to %s", newname);
conf_message("configuration written to %s", name);
sym_set_change_count(0);
return 0;
}
static int conf_split_config(void)
/* write a dependency file as used by kbuild to track dependencies */
static int conf_write_dep(const char *name)
{
struct file *file;
FILE *out;
out = fopen("..config.tmp", "w");
if (!out)
return 1;
fprintf(out, "deps_config := \\\n");
for (file = file_list; file; file = file->next) {
if (file->next)
fprintf(out, "\t%s \\\n", file->name);
else
fprintf(out, "\t%s\n", file->name);
}
fprintf(out, "\n%s: \\\n"
"\t$(deps_config)\n\n", conf_get_autoconfig_name());
env_write_dep(out, conf_get_autoconfig_name());
fprintf(out, "\n$(deps_config): ;\n");
fclose(out);
if (make_parent_dir(name))
return 1;
rename("..config.tmp", name);
return 0;
}
static int conf_touch_deps(void)
{
const char *name;
char path[PATH_MAX+1];
char *s, *d, c;
struct symbol *sym;
struct stat sb;
int res, i, fd;
int res, i;
strcpy(depfile_path, "include/config/");
depfile_prefix_len = strlen(depfile_path);
name = conf_get_autoconfig_name();
conf_read_simple(name, S_DEF_AUTO);
sym_calc_value(modules_sym);
if (chdir("include/config"))
return 1;
res = 0;
for_all_symbols(i, sym) {
sym_calc_value(sym);
if ((sym->flags & SYMBOL_AUTO) || !sym->name)
if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name)
continue;
if (sym->flags & SYMBOL_WRITE) {
if (sym->flags & SYMBOL_DEF_AUTO) {
@@ -902,63 +1049,28 @@ static int conf_split_config(void)
* different from 'no').
*/
/* Replace all '_' and append ".h" */
s = sym->name;
d = path;
while ((c = *s++)) {
c = tolower(c);
*d++ = (c == '_') ? '/' : c;
}
strcpy(d, ".h");
/* Assume directory path already exists. */
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd == -1) {
if (errno != ENOENT) {
res = 1;
break;
}
/*
* Create directory components,
* unless they exist already.
*/
d = path;
while ((d = strchr(d, '/'))) {
*d = 0;
if (stat(path, &sb) && mkdir(path, 0755)) {
res = 1;
goto out;
}
*d++ = '/';
}
/* Try it again. */
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd == -1) {
res = 1;
break;
}
}
close(fd);
}
out:
if (chdir("../.."))
return 1;
res = conf_touch_dep(sym->name);
if (res)
return res;
}
int conf_write_autoconf(void)
return 0;
}
int conf_write_autoconf(int overwrite)
{
struct symbol *sym;
const char *name;
const char *autoconf_name = conf_get_autoconfig_name();
FILE *out, *tristate, *out_h;
int i;
sym_clear_all_valid();
if (!overwrite && is_present(autoconf_name))
return 0;
file_write_dep("include/config/auto.conf.cmd");
conf_write_dep("include/config/auto.conf.cmd");
if (conf_split_config())
if (conf_touch_deps())
return 1;
out = fopen(".tmpconfig", "w");
@@ -1003,19 +1115,26 @@ int conf_write_autoconf(void)
name = getenv("KCONFIG_AUTOHEADER");
if (!name)
name = "include/generated/autoconf.h";
if (make_parent_dir(name))
return 1;
if (rename(".tmpconfig.h", name))
return 1;
name = getenv("KCONFIG_TRISTATE");
if (!name)
name = "include/config/tristate.conf";
if (make_parent_dir(name))
return 1;
if (rename(".tmpconfig_tristate", name))
return 1;
name = conf_get_autoconfig_name();
if (make_parent_dir(autoconf_name))
return 1;
/*
* This must be the last step, kbuild has a dependency on auto.conf
* and this marks the successful completion of the previous steps.
*/
if (rename(".tmpconfig", name))
if (rename(".tmpconfig", autoconf_name))
return 1;
return 0;
@@ -1119,7 +1238,7 @@ void set_all_choice_values(struct symbol *csym)
bool conf_set_all_new_symbols(enum conf_def_mode mode)
{
struct symbol *sym, *csym;
int i, cnt, pby, pty, ptm; /* pby: probability of boolean = y
int i, cnt, pby, pty, ptm; /* pby: probability of bool = y
* pty: probability of tristate = y
* ptm: probability of tristate = m
*/
xen/tools/kconfig/expr.c
+152 -61
View File
@@ -1,8 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -94,7 +96,7 @@ struct expr *expr_copy(const struct expr *org)
e->right.expr = expr_copy(org->right.expr);
break;
default:
printf("can't copy type %d\n", e->type);
fprintf(stderr, "can't copy type %d\n", e->type);
free(e);
e = NULL;
break;
@@ -113,7 +115,7 @@ void expr_free(struct expr *e)
break;
case E_NOT:
expr_free(e->left.expr);
return;
break;
case E_EQUAL:
case E_GEQ:
case E_GTH:
@@ -127,7 +129,7 @@ void expr_free(struct expr *e)
expr_free(e->right.expr);
break;
default:
printf("how to free type %d?\n", e->type);
fprintf(stderr, "how to free type %d?\n", e->type);
break;
}
free(e);
@@ -138,8 +140,18 @@ static int trans_count;
#define e1 (*ep1)
#define e2 (*ep2)
/*
* expr_eliminate_eq() helper.
*
* Walks the two expression trees given in 'ep1' and 'ep2'. Any node that does
* not have type 'type' (E_OR/E_AND) is considered a leaf, and is compared
* against all other leaves. Two equal leaves are both replaced with either 'y'
* or 'n' as appropriate for 'type', to be eliminated later.
*/
static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct expr **ep2)
{
/* Recurse down to leaves */
if (e1->type == type) {
__expr_eliminate_eq(type, &e1->left.expr, &e2);
__expr_eliminate_eq(type, &e1->right.expr, &e2);
@@ -150,12 +162,18 @@ static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct e
__expr_eliminate_eq(type, &e1, &e2->right.expr);
return;
}
/* e1 and e2 are leaves. Compare them. */
if (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
e1->left.sym == e2->left.sym &&
(e1->left.sym == &symbol_yes || e1->left.sym == &symbol_no))
return;
if (!expr_eq(e1, e2))
return;
/* e1 and e2 are equal leaves. Prepare them for elimination. */
trans_count++;
expr_free(e1); expr_free(e2);
switch (type) {
@@ -172,6 +190,35 @@ static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct e
}
}
/*
* Rewrites the expressions 'ep1' and 'ep2' to remove operands common to both.
* Example reductions:
*
* ep1: A && B -> ep1: y
* ep2: A && B && C -> ep2: C
*
* ep1: A || B -> ep1: n
* ep2: A || B || C -> ep2: C
*
* ep1: A && (B && FOO) -> ep1: FOO
* ep2: (BAR && B) && A -> ep2: BAR
*
* ep1: A && (B || C) -> ep1: y
* ep2: (C || B) && A -> ep2: y
*
* Comparisons are done between all operands at the same "level" of && or ||.
* For example, in the expression 'e1 && (e2 || e3) && (e4 || e5)', the
* following operands will be compared:
*
* - 'e1', 'e2 || e3', and 'e4 || e5', against each other
* - e2 against e3
* - e4 against e5
*
* Parentheses are irrelevant within a single level. 'e1 && (e2 && e3)' and
* '(e1 && e2) && e3' are both a single level.
*
* See __expr_eliminate_eq() as well.
*/
void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
{
if (!e1 || !e2)
@@ -197,6 +244,12 @@ void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
#undef e1
#undef e2
/*
* Returns true if 'e1' and 'e2' are equal, after minor simplification. Two
* &&/|| expressions are considered equal if every operand in one expression
* equals some operand in the other (operands do not need to appear in the same
* order), recursively.
*/
static int expr_eq(struct expr *e1, struct expr *e2)
{
int res, old_count;
@@ -243,6 +296,17 @@ static int expr_eq(struct expr *e1, struct expr *e2)
return 0;
}
/*
* Recursively performs the following simplifications in-place (as well as the
* corresponding simplifications with swapped operands):
*
* expr && n -> n
* expr && y -> expr
* expr || n -> expr
* expr || y -> y
*
* Returns the optimized expression.
*/
static struct expr *expr_eliminate_yn(struct expr *e)
{
struct expr *tmp;
@@ -516,12 +580,21 @@ static struct expr *expr_join_and(struct expr *e1, struct expr *e2)
return NULL;
}
/*
* expr_eliminate_dups() helper.
*
* Walks the two expression trees given in 'ep1' and 'ep2'. Any node that does
* not have type 'type' (E_OR/E_AND) is considered a leaf, and is compared
* against all other leaves to look for simplifications.
*/
static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct expr **ep2)
{
#define e1 (*ep1)
#define e2 (*ep2)
struct expr *tmp;
/* Recurse down to leaves */
if (e1->type == type) {
expr_eliminate_dups1(type, &e1->left.expr, &e2);
expr_eliminate_dups1(type, &e1->right.expr, &e2);
@@ -532,6 +605,9 @@ static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct
expr_eliminate_dups1(type, &e1, &e2->right.expr);
return;
}
/* e1 and e2 are leaves. Compare and process them. */
if (e1 == e2)
return;
@@ -568,6 +644,17 @@ static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct
#undef e2
}
/*
* Rewrites 'e' in-place to remove ("join") duplicate and other redundant
* operands.
*
* Example simplifications:
*
* A || B || A -> A || B
* A && B && A=y -> A=y && B
*
* Returns the deduplicated expression.
*/
struct expr *expr_eliminate_dups(struct expr *e)
{
int oldcount;
@@ -584,6 +671,7 @@ struct expr *expr_eliminate_dups(struct expr *e)
;
}
if (!trans_count)
/* No simplifications done in this pass. We're done */
break;
e = expr_eliminate_yn(e);
}
@@ -591,6 +679,12 @@ struct expr *expr_eliminate_dups(struct expr *e)
return e;
}
/*
* Performs various simplifications involving logical operators and
* comparisons.
*
* Allocates and returns a new expression.
*/
struct expr *expr_transform(struct expr *e)
{
struct expr *tmp;
@@ -805,6 +899,20 @@ bool expr_depends_symbol(struct expr *dep, struct symbol *sym)
return false;
}
/*
* Inserts explicit comparisons of type 'type' to symbol 'sym' into the
* expression 'e'.
*
* Examples transformations for type == E_UNEQUAL, sym == &symbol_no:
*
* A -> A!=n
* !A -> A=n
* A && B -> !(A=n || B=n)
* A || B -> !(A=n && B=n)
* A && (B || C) -> !(A=n || (B=n && C=n))
*
* Allocates and returns a new expression.
*/
struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym)
{
struct expr *e1, *e2;
@@ -874,7 +982,6 @@ enum string_value_kind {
k_string,
k_signed,
k_unsigned,
k_invalid
};
union string_value {
@@ -893,7 +1000,10 @@ static enum string_value_kind expr_parse_string(const char *str,
switch (type) {
case S_BOOLEAN:
case S_TRISTATE:
return k_string;
val->s = !strcmp(str, "n") ? 0 :
!strcmp(str, "m") ? 1 :
!strcmp(str, "y") ? 2 : -1;
return k_signed;
case S_INT:
val->s = strtoll(str, &tail, 10);
kind = k_signed;
@@ -902,13 +1012,10 @@ static enum string_value_kind expr_parse_string(const char *str,
val->u = strtoull(str, &tail, 16);
kind = k_unsigned;
break;
case S_STRING:
case S_UNKNOWN:
default:
val->s = strtoll(str, &tail, 0);
kind = k_signed;
break;
default:
return k_invalid;
}
return !errno && !*tail && tail > str && isxdigit(tail[-1])
? kind : k_string;
@@ -964,13 +1071,7 @@ tristate expr_calc_value(struct expr *e)
if (k1 == k_string || k2 == k_string)
res = strcmp(str1, str2);
else if (k1 == k_invalid || k2 == k_invalid) {
if (e->type != E_EQUAL && e->type != E_UNEQUAL) {
printf("Cannot compare \"%s\" and \"%s\"\n", str1, str2);
return no;
}
res = strcmp(str1, str2);
} else if (k1 == k_unsigned || k2 == k_unsigned)
else if (k1 == k_unsigned || k2 == k_unsigned)
res = (lval.u > rval.u) - (lval.u < rval.u);
else /* if (k1 == k_signed && k2 == k_signed) */
res = (lval.s > rval.s) - (lval.s < rval.s);
@@ -1028,49 +1129,9 @@ static int expr_compare_type(enum expr_type t1, enum expr_type t2)
return 0;
}
static inline struct expr *
expr_get_leftmost_symbol(const struct expr *e)
{
if (e == NULL)
return NULL;
while (e->type != E_SYMBOL)
e = e->left.expr;
return expr_copy(e);
}
/*
* Given expression `e1' and `e2', returns the leaf of the longest
* sub-expression of `e1' not containing 'e2.
*/
struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2)
{
struct expr *ret;
switch (e1->type) {
case E_OR:
return expr_alloc_and(
expr_simplify_unmet_dep(e1->left.expr, e2),
expr_simplify_unmet_dep(e1->right.expr, e2));
case E_AND: {
struct expr *e;
e = expr_alloc_and(expr_copy(e1), expr_copy(e2));
e = expr_eliminate_dups(e);
ret = (!expr_eq(e, e1)) ? e1 : NULL;
expr_free(e);
break;
}
default:
ret = e1;
break;
}
return expr_get_leftmost_symbol(ret);
}
void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken)
void expr_print(struct expr *e,
void (*fn)(void *, struct symbol *, const char *),
void *data, int prevtoken)
{
if (!e) {
fn(data, NULL, "y");
@@ -1113,7 +1174,7 @@ void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *
fn(data, e->left.sym, e->left.sym->name);
else
fn(data, NULL, "<choice>");
fn(data, NULL, e->type == E_LEQ ? ">=" : ">");
fn(data, NULL, e->type == E_GEQ ? ">=" : ">");
fn(data, e->right.sym, e->right.sym->name);
break;
case E_UNEQUAL:
@@ -1204,3 +1265,33 @@ void expr_gstr_print(struct expr *e, struct gstr *gs)
{
expr_print(e, expr_print_gstr_helper, gs, E_NONE);
}
/*
* Transform the top level "||" tokens into newlines and prepend each
* line with a minus. This makes expressions much easier to read.
* Suitable for reverse dependency expressions.
*/
static void expr_print_revdep(struct expr *e,
void (*fn)(void *, struct symbol *, const char *),
void *data, tristate pr_type, const char **title)
{
if (e->type == E_OR) {
expr_print_revdep(e->left.expr, fn, data, pr_type, title);
expr_print_revdep(e->right.expr, fn, data, pr_type, title);
} else if (expr_calc_value(e) == pr_type) {
if (*title) {
fn(data, NULL, *title);
*title = NULL;
}
fn(data, NULL, " - ");
expr_print(e, fn, data, E_NONE);
fn(data, NULL, "\n");
}
}
void expr_gstr_print_revdep(struct expr *e, struct gstr *gs,
tristate pr_type, const char *title)
{
expr_print_revdep(e, expr_print_gstr_helper, gs, pr_type, &title);
}
xen/tools/kconfig/expr.h
+101 -7
View File
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#ifndef EXPR_H
@@ -62,7 +62,7 @@ struct symbol_value {
};
enum symbol_type {
S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING
};
/* enum values are used as index to symbol.def[] */
@@ -74,20 +74,64 @@ enum {
S_DEF_COUNT
};
/*
* Represents a configuration symbol.
*
* Choices are represented as a special kind of symbol and have the
* SYMBOL_CHOICE bit set in 'flags'.
*/
struct symbol {
/* The next symbol in the same bucket in the symbol hash table */
struct symbol *next;
/* The name of the symbol, e.g. "FOO" for 'config FOO' */
char *name;
/* S_BOOLEAN, S_TRISTATE, ... */
enum symbol_type type;
/*
* The calculated value of the symbol. The SYMBOL_VALID bit is set in
* 'flags' when this is up to date. Note that this value might differ
* from the user value set in e.g. a .config file, due to visibility.
*/
struct symbol_value curr;
/*
* Values for the symbol provided from outside. def[S_DEF_USER] holds
* the .config value.
*/
struct symbol_value def[S_DEF_COUNT];
/*
* An upper bound on the tristate value the user can set for the symbol
* if it is a boolean or tristate. Calculated from prompt dependencies,
* which also inherit dependencies from enclosing menus, choices, and
* ifs. If 'n', the user value will be ignored.
*
* Symbols lacking prompts always have visibility 'n'.
*/
tristate visible;
/* SYMBOL_* flags */
int flags;
/* List of properties. See prop_type. */
struct property *prop;
/* Dependencies from enclosing menus, choices, and ifs */
struct expr_value dir_dep;
/* Reverse dependencies through being selected by other symbols */
struct expr_value rev_dep;
/*
* "Weak" reverse dependencies through being implied by other symbols
*/
struct expr_value implied;
};
#define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
#define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next)
#define SYMBOL_CONST 0x0001 /* symbol is const */
#define SYMBOL_CHECK 0x0008 /* used during dependency checking */
@@ -97,7 +141,8 @@ struct symbol {
#define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */
#define SYMBOL_WRITE 0x0200 /* write symbol to file (KCONFIG_CONFIG) */
#define SYMBOL_CHANGED 0x0400 /* ? */
#define SYMBOL_AUTO 0x1000 /* value from environment variable */
#define SYMBOL_WRITTEN 0x0800 /* track info to avoid double-write to .config */
#define SYMBOL_NO_WRITE 0x1000 /* Symbol for internal use only; it will not be written */
#define SYMBOL_CHECKED 0x2000 /* used during dependency checking */
#define SYMBOL_WARNED 0x8000 /* warning has been issued */
@@ -127,17 +172,20 @@ struct symbol {
* config BAZ
* int "BAZ Value"
* range 1..255
*
* Please, also check parser.y:print_symbol() when modifying the
* list of property types!
*/
enum prop_type {
P_UNKNOWN,
P_PROMPT, /* prompt "foo prompt" or "BAZ Value" */
P_COMMENT, /* text associated with a comment */
P_MENU, /* prompt associated with a menuconfig option */
P_MENU, /* prompt associated with a menu or menuconfig symbol */
P_DEFAULT, /* default y */
P_CHOICE, /* choice value */
P_SELECT, /* select BAR */
P_IMPLY, /* imply BAR */
P_RANGE, /* range 7..100 (for a symbol) */
P_ENV, /* value from environment variable */
P_SYMBOL, /* where a symbol is defined */
};
@@ -164,22 +212,67 @@ struct property {
for (st = sym->prop; st; st = st->next) \
if (st->text)
/*
* Represents a node in the menu tree, as seen in e.g. menuconfig (though used
* for all front ends). Each symbol, menu, etc. defined in the Kconfig files
* gets a node. A symbol defined in multiple locations gets one node at each
* location.
*/
struct menu {
/* The next menu node at the same level */
struct menu *next;
/* The parent menu node, corresponding to e.g. a menu or choice */
struct menu *parent;
/* The first child menu node, for e.g. menus and choices */
struct menu *list;
/*
* The symbol associated with the menu node. Choices are implemented as
* a special kind of symbol. NULL for menus, comments, and ifs.
*/
struct symbol *sym;
/*
* The prompt associated with the node. This holds the prompt for a
* symbol as well as the text for a menu or comment, along with the
* type (P_PROMPT, P_MENU, etc.)
*/
struct property *prompt;
/*
* 'visible if' dependencies. If more than one is given, they will be
* ANDed together.
*/
struct expr *visibility;
/*
* Ordinary dependencies from e.g. 'depends on' and 'if', ANDed
* together
*/
struct expr *dep;
/* MENU_* flags */
unsigned int flags;
/* Any help text associated with the node */
char *help;
/* The location where the menu node appears in the Kconfig files */
struct file *file;
int lineno;
/* For use by front ends that need to store auxiliary data */
void *data;
};
/*
* Set on a menu node when the corresponding symbol changes state in some way.
* Can be checked by front ends.
*/
#define MENU_CHANGED 0x0001
#define MENU_ROOT 0x0002
struct jump_key {
@@ -215,11 +308,12 @@ struct expr *expr_transform(struct expr *e);
int expr_contains_symbol(struct expr *dep, struct symbol *sym);
bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
void expr_fprint(struct expr *e, FILE *out);
struct gstr; /* forward */
void expr_gstr_print(struct expr *e, struct gstr *gs);
void expr_gstr_print_revdep(struct expr *e, struct gstr *gs,
tristate pr_type, const char *title);
static inline int expr_is_yes(struct expr *e)
{
xen/tools/kconfig/gconf-cfg.sh
Executable
+30
View File
@@ -0,0 +1,30 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
PKG="gtk+-2.0 gmodule-2.0 libglade-2.0"
if [ -z "$(command -v pkg-config)" ]; then
echo >&2 "*"
echo >&2 "* 'make gconfig' requires 'pkg-config'. Please install it."
echo >&2 "*"
exit 1
fi
if ! pkg-config --exists $PKG; then
echo >&2 "*"
echo >&2 "* Unable to find the GTK+ installation. Please make sure that"
echo >&2 "* the GTK+ 2.0 development package is correctly installed."
echo >&2 "* You need $PKG"
echo >&2 "*"
exit 1
fi
if ! pkg-config --atleast-version=2.0.0 gtk+-2.0; then
echo >&2 "*"
echo >&2 "* GTK+ is present but version >= 2.0.0 is required."
echo >&2 "*"
exit 1
fi
echo cflags=\"$(pkg-config --cflags $PKG)\"
echo libs=\"$(pkg-config --libs $PKG)\"
xen/tools/kconfig/gconf.c
+16 -17
View File
@@ -1,9 +1,6 @@
/* Hey EMACS -*- linux-c -*- */
// SPDX-License-Identifier: GPL-2.0
/*
*
* Copyright (C) 2002-2003 Romain Lievin <roms@tilp.info>
* Released under the terms of the GNU GPL v2.0.
*
*/
#ifdef HAVE_CONFIG_H
@@ -12,7 +9,7 @@
#include <stdlib.h>
#include "lkc.h"
#include "images.c"
#include "images.h"
#include <glade/glade.h>
#include <gtk/gtk.h>
@@ -78,8 +75,8 @@ static gchar **fill_row(struct menu *menu);
static void conf_changed(void);
/* Helping/Debugging Functions */
const char *dbg_sym_flags(int val)
#ifdef DEBUG
static const char *dbg_sym_flags(int val)
{
static char buf[256];
@@ -101,15 +98,16 @@ const char *dbg_sym_flags(int val)
strcat(buf, "write/");
if (val & SYMBOL_CHANGED)
strcat(buf, "changed/");
if (val & SYMBOL_AUTO)
strcat(buf, "auto/");
if (val & SYMBOL_NO_WRITE)
strcat(buf, "no_write/");
buf[strlen(buf) - 1] = '\0';
return buf;
}
#endif
void replace_button_icon(GladeXML * xml, GdkDrawable * window,
static void replace_button_icon(GladeXML *xml, GdkDrawable *window,
GtkStyle *style, gchar *btn_name, gchar **xpm)
{
GdkPixmap *pixmap;
@@ -128,7 +126,7 @@ void replace_button_icon(GladeXML * xml, GdkDrawable * window,
}
/* Main Window Initialization */
void init_main_window(const gchar * glade_file)
static void init_main_window(const gchar *glade_file)
{
GladeXML *xml;
GtkWidget *widget;
@@ -190,7 +188,7 @@ void init_main_window(const gchar * glade_file)
gtk_widget_show(main_wnd);
}
void init_tree_model(void)
static void init_tree_model(void)
{
gint i;
@@ -220,7 +218,7 @@ void init_tree_model(void)
model1 = GTK_TREE_MODEL(tree1);
}
void init_left_tree(void)
static void init_left_tree(void)
{
GtkTreeView *view = GTK_TREE_VIEW(tree1_w);
GtkCellRenderer *renderer;
@@ -262,7 +260,7 @@ static void renderer_edited(GtkCellRendererText * cell,
const gchar * path_string,
const gchar * new_text, gpointer user_data);
void init_right_tree(void)
static void init_right_tree(void)
{
GtkTreeView *view = GTK_TREE_VIEW(tree2_w);
GtkCellRenderer *renderer;
@@ -525,6 +523,7 @@ void on_save_activate(GtkMenuItem * menuitem, gpointer user_data)
{
if (conf_write(NULL))
text_insert_msg("Error", "Unable to save configuration !");
conf_write_autoconf(0);
}
@@ -914,7 +913,7 @@ on_treeview2_button_press_event(GtkWidget * widget,
current = menu;
display_tree_part();
gtk_widget_set_sensitive(back_btn, TRUE);
} else if ((col == COL_OPTION)) {
} else if (col == COL_OPTION) {
toggle_sym_value(menu);
gtk_tree_view_expand_row(view, path, TRUE);
}
@@ -1211,7 +1210,7 @@ static GtkTreeIter found;
/*
* Find a menu in the GtkTree starting at parent.
*/
GtkTreeIter *gtktree_iter_find_node(GtkTreeIter * parent,
static GtkTreeIter *gtktree_iter_find_node(GtkTreeIter *parent,
struct menu *tofind)
{
GtkTreeIter iter;
@@ -1423,7 +1422,7 @@ static void display_list(void)
tree = tree2;
}
void fixup_rootmenu(struct menu *menu)
static void fixup_rootmenu(struct menu *menu)
{
struct menu *child;
static int menu_cnt = 0;
xen/tools/kconfig/images.c
+18 -16
View File
@@ -1,9 +1,11 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
static const char *xpm_load[] = {
#include "images.h"
const char *xpm_load[] = {
"22 22 5 1",
". c None",
"# c #000000",
@@ -33,7 +35,7 @@ static const char *xpm_load[] = {
"###############.......",
"......................"};
static const char *xpm_save[] = {
const char *xpm_save[] = {
"22 22 5 1",
". c None",
"# c #000000",
@@ -63,7 +65,7 @@ static const char *xpm_save[] = {
"..##################..",
"......................"};
static const char *xpm_back[] = {
const char *xpm_back[] = {
"22 22 3 1",
". c None",
"# c #000083",
@@ -91,7 +93,7 @@ static const char *xpm_back[] = {
"......................",
"......................"};
static const char *xpm_tree_view[] = {
const char *xpm_tree_view[] = {
"22 22 2 1",
". c None",
"# c #000000",
@@ -118,7 +120,7 @@ static const char *xpm_tree_view[] = {
"......................",
"......................"};
static const char *xpm_single_view[] = {
const char *xpm_single_view[] = {
"22 22 2 1",
". c None",
"# c #000000",
@@ -145,7 +147,7 @@ static const char *xpm_single_view[] = {
"......................",
"......................"};
static const char *xpm_split_view[] = {
const char *xpm_split_view[] = {
"22 22 2 1",
". c None",
"# c #000000",
@@ -172,7 +174,7 @@ static const char *xpm_split_view[] = {
"......................",
"......................"};
static const char *xpm_symbol_no[] = {
const char *xpm_symbol_no[] = {
"12 12 2 1",
" c white",
". c black",
@@ -189,7 +191,7 @@ static const char *xpm_symbol_no[] = {
" .......... ",
" "};
static const char *xpm_symbol_mod[] = {
const char *xpm_symbol_mod[] = {
"12 12 2 1",
" c white",
". c black",
@@ -206,7 +208,7 @@ static const char *xpm_symbol_mod[] = {
" .......... ",
" "};
static const char *xpm_symbol_yes[] = {
const char *xpm_symbol_yes[] = {
"12 12 2 1",
" c white",
". c black",
@@ -223,7 +225,7 @@ static const char *xpm_symbol_yes[] = {
" .......... ",
" "};
static const char *xpm_choice_no[] = {
const char *xpm_choice_no[] = {
"12 12 2 1",
" c white",
". c black",
@@ -240,7 +242,7 @@ static const char *xpm_choice_no[] = {
" .... ",
" "};
static const char *xpm_choice_yes[] = {
const char *xpm_choice_yes[] = {
"12 12 2 1",
" c white",
". c black",
@@ -257,7 +259,7 @@ static const char *xpm_choice_yes[] = {
" .... ",
" "};
static const char *xpm_menu[] = {
const char *xpm_menu[] = {
"12 12 2 1",
" c white",
". c black",
@@ -274,7 +276,7 @@ static const char *xpm_menu[] = {
" .......... ",
" "};
static const char *xpm_menu_inv[] = {
const char *xpm_menu_inv[] = {
"12 12 2 1",
" c white",
". c black",
@@ -291,7 +293,7 @@ static const char *xpm_menu_inv[] = {
" .......... ",
" "};
static const char *xpm_menuback[] = {
const char *xpm_menuback[] = {
"12 12 2 1",
" c white",
". c black",
@@ -308,7 +310,7 @@ static const char *xpm_menuback[] = {
" .......... ",
" "};
static const char *xpm_void[] = {
const char *xpm_void[] = {
"12 12 2 1",
" c white",
". c black",
xen/tools/kconfig/images.h
+33
View File
@@ -0,0 +1,33 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
*/
#ifndef IMAGES_H
#define IMAGES_H
#ifdef __cplusplus
extern "C" {
#endif
extern const char *xpm_load[];
extern const char *xpm_save[];
extern const char *xpm_back[];
extern const char *xpm_tree_view[];
extern const char *xpm_single_view[];
extern const char *xpm_split_view[];
extern const char *xpm_symbol_no[];
extern const char *xpm_symbol_mod[];
extern const char *xpm_symbol_yes[];
extern const char *xpm_choice_no[];
extern const char *xpm_choice_yes[];
extern const char *xpm_menu[];
extern const char *xpm_menu_inv[];
extern const char *xpm_menuback[];
extern const char *xpm_void[];
#ifdef __cplusplus
}
#endif
#endif /* IMAGES_H */
xen/tools/kconfig/lexer.l
+471
View File
@@ -0,0 +1,471 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
*/
%option nostdinit noyywrap never-interactive full ecs
%option 8bit nodefault yylineno
%x ASSIGN_VAL HELP STRING
%{
#include <assert.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "lkc.h"
#include "parser.tab.h"
#define YY_DECL static int yylex1(void)
#define START_STRSIZE 16
static struct {
struct file *file;
int lineno;
} current_pos;
static int prev_prev_token = T_EOL;
static int prev_token = T_EOL;
static char *text;
static int text_size, text_asize;
struct buffer {
struct buffer *parent;
YY_BUFFER_STATE state;
};
struct buffer *current_buf;
static int last_ts, first_ts;
static char *expand_token(const char *in, size_t n);
static void append_expanded_string(const char *in);
static void zconf_endhelp(void);
static void zconf_endfile(void);
static void new_string(void)
{
text = xmalloc(START_STRSIZE);
text_asize = START_STRSIZE;
text_size = 0;
*text = 0;
}
static void append_string(const char *str, int size)
{
int new_size = text_size + size + 1;
if (new_size > text_asize) {
new_size += START_STRSIZE - 1;
new_size &= -START_STRSIZE;
text = xrealloc(text, new_size);
text_asize = new_size;
}
memcpy(text + text_size, str, size);
text_size += size;
text[text_size] = 0;
}
static void alloc_string(const char *str, int size)
{
text = xmalloc(size + 1);
memcpy(text, str, size);
text[size] = 0;
}
static void warn_ignored_character(char chr)
{
fprintf(stderr,
"%s:%d:warning: ignoring unsupported character '%c'\n",
current_file->name, yylineno, chr);
}
%}
n [A-Za-z0-9_-]
%%
int str = 0;
int ts, i;
#.* /* ignore comment */
[ \t]* /* whitespaces */
\\\n /* escaped new line */
\n return T_EOL;
"allnoconfig_y" return T_ALLNOCONFIG_Y;
"bool" return T_BOOL;
"choice" return T_CHOICE;
"comment" return T_COMMENT;
"config" return T_CONFIG;
"def_bool" return T_DEF_BOOL;
"def_tristate" return T_DEF_TRISTATE;
"default" return T_DEFAULT;
"defconfig_list" return T_DEFCONFIG_LIST;
"depends" return T_DEPENDS;
"endchoice" return T_ENDCHOICE;
"endif" return T_ENDIF;
"endmenu" return T_ENDMENU;
"help"|"---help---" return T_HELP;
"hex" return T_HEX;
"if" return T_IF;
"imply" return T_IMPLY;
"int" return T_INT;
"mainmenu" return T_MAINMENU;
"menu" return T_MENU;
"menuconfig" return T_MENUCONFIG;
"modules" return T_MODULES;
"on" return T_ON;
"option" return T_OPTION;
"optional" return T_OPTIONAL;
"prompt" return T_PROMPT;
"range" return T_RANGE;
"select" return T_SELECT;
"source" return T_SOURCE;
"string" return T_STRING;
"tristate" return T_TRISTATE;
"visible" return T_VISIBLE;
"||" return T_OR;
"&&" return T_AND;
"=" return T_EQUAL;
"!=" return T_UNEQUAL;
"<" return T_LESS;
"<=" return T_LESS_EQUAL;
">" return T_GREATER;
">=" return T_GREATER_EQUAL;
"!" return T_NOT;
"(" return T_OPEN_PAREN;
")" return T_CLOSE_PAREN;
":=" return T_COLON_EQUAL;
"+=" return T_PLUS_EQUAL;
\"|\' {
str = yytext[0];
new_string();
BEGIN(STRING);
}
{n}+ {
alloc_string(yytext, yyleng);
yylval.string = text;
return T_WORD;
}
({n}|$)+ {
/* this token includes at least one '$' */
yylval.string = expand_token(yytext, yyleng);
if (strlen(yylval.string))
return T_WORD;
free(yylval.string);
}
. warn_ignored_character(*yytext);
<ASSIGN_VAL>{
[^[:blank:]\n]+.* {
alloc_string(yytext, yyleng);
yylval.string = text;
return T_ASSIGN_VAL;
}
\n { BEGIN(INITIAL); return T_EOL; }
.
}
<STRING>{
"$".* append_expanded_string(yytext);
[^$'"\\\n]+ {
append_string(yytext, yyleng);
}
\\.? {
append_string(yytext + 1, yyleng - 1);
}
\'|\" {
if (str == yytext[0]) {
BEGIN(INITIAL);
yylval.string = text;
return T_WORD_QUOTE;
} else
append_string(yytext, 1);
}
\n {
fprintf(stderr,
"%s:%d:warning: multi-line strings not supported\n",
zconf_curname(), zconf_lineno());
unput('\n');
BEGIN(INITIAL);
yylval.string = text;
return T_WORD_QUOTE;
}
<<EOF>> {
BEGIN(INITIAL);
yylval.string = text;
return T_WORD_QUOTE;
}
}
<HELP>{
[ \t]+ {
ts = 0;
for (i = 0; i < yyleng; i++) {
if (yytext[i] == '\t')
ts = (ts & ~7) + 8;
else
ts++;
}
last_ts = ts;
if (first_ts) {
if (ts < first_ts) {
zconf_endhelp();
return T_HELPTEXT;
}
ts -= first_ts;
while (ts > 8) {
append_string(" ", 8);
ts -= 8;
}
append_string(" ", ts);
}
}
[ \t]*\n/[^ \t\n] {
zconf_endhelp();
return T_HELPTEXT;
}
[ \t]*\n {
append_string("\n", 1);
}
[^ \t\n].* {
while (yyleng) {
if ((yytext[yyleng-1] != ' ') && (yytext[yyleng-1] != '\t'))
break;
yyleng--;
}
append_string(yytext, yyleng);
if (!first_ts)
first_ts = last_ts;
}
<<EOF>> {
zconf_endhelp();
return T_HELPTEXT;
}
}
<<EOF>> {
BEGIN(INITIAL);
if (prev_token != T_EOL && prev_token != T_HELPTEXT)
fprintf(stderr, "%s:%d:warning: no new line at end of file\n",
current_file->name, yylineno);
if (current_file) {
zconf_endfile();
return T_EOL;
}
fclose(yyin);
yyterminate();
}
%%
/* second stage lexer */
int yylex(void)
{
int token;
repeat:
token = yylex1();
if (prev_token == T_EOL || prev_token == T_HELPTEXT) {
if (token == T_EOL) {
/* Do not pass unneeded T_EOL to the parser. */
goto repeat;
} else {
/*
* For the parser, update file/lineno at the first token
* of each statement. Generally, \n is a statement
* terminator in Kconfig, but it is not always true
* because \n could be escaped by a backslash.
*/
current_pos.file = current_file;
current_pos.lineno = yylineno;
}
}
if (prev_prev_token == T_EOL && prev_token == T_WORD &&
(token == T_EQUAL || token == T_COLON_EQUAL || token == T_PLUS_EQUAL))
BEGIN(ASSIGN_VAL);
prev_prev_token = prev_token;
prev_token = token;
return token;
}
static char *expand_token(const char *in, size_t n)
{
char *out;
int c;
char c2;
const char *rest, *end;
new_string();
append_string(in, n);
/* get the whole line because we do not know the end of token. */
while ((c = input()) != EOF) {
if (c == '\n') {
unput(c);
break;
}
c2 = c;
append_string(&c2, 1);
}
rest = text;
out = expand_one_token(&rest);
/* push back unused characters to the input stream */
end = rest + strlen(rest);
while (end > rest)
unput(*--end);
free(text);
return out;
}
static void append_expanded_string(const char *str)
{
const char *end;
char *res;
str++;
res = expand_dollar(&str);
/* push back unused characters to the input stream */
end = str + strlen(str);
while (end > str)
unput(*--end);
append_string(res, strlen(res));
free(res);
}
void zconf_starthelp(void)
{
new_string();
last_ts = first_ts = 0;
BEGIN(HELP);
}
static void zconf_endhelp(void)
{
yylval.string = text;
BEGIN(INITIAL);
}
/*
* Try to open specified file with following names:
* ./name
* $(srctree)/name
* The latter is used when srctree is separate from objtree
* when compiling the kernel.
* Return NULL if file is not found.
*/
FILE *zconf_fopen(const char *name)
{
char *env, fullname[PATH_MAX+1];
FILE *f;
f = fopen(name, "r");
if (!f && name != NULL && name[0] != '/') {
env = getenv(SRCTREE);
if (env) {
snprintf(fullname, sizeof(fullname),
"%s/%s", env, name);
f = fopen(fullname, "r");
}
}
return f;
}
void zconf_initscan(const char *name)
{
yyin = zconf_fopen(name);
if (!yyin) {
fprintf(stderr, "can't find file %s\n", name);
exit(1);
}
current_buf = xmalloc(sizeof(*current_buf));
memset(current_buf, 0, sizeof(*current_buf));
current_file = file_lookup(name);
yylineno = 1;
}
void zconf_nextfile(const char *name)
{
struct file *iter;
struct file *file = file_lookup(name);
struct buffer *buf = xmalloc(sizeof(*buf));
memset(buf, 0, sizeof(*buf));
current_buf->state = YY_CURRENT_BUFFER;
yyin = zconf_fopen(file->name);
if (!yyin) {
fprintf(stderr, "%s:%d: can't open file \"%s\"\n",
zconf_curname(), zconf_lineno(), file->name);
exit(1);
}
yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
buf->parent = current_buf;
current_buf = buf;
current_file->lineno = yylineno;
file->parent = current_file;
for (iter = current_file; iter; iter = iter->parent) {
if (!strcmp(iter->name, file->name)) {
fprintf(stderr,
"Recursive inclusion detected.\n"
"Inclusion path:\n"
" current file : %s\n", file->name);
iter = file;
do {
iter = iter->parent;
fprintf(stderr, " included from: %s:%d\n",
iter->name, iter->lineno - 1);
} while (strcmp(iter->name, file->name));
exit(1);
}
}
yylineno = 1;
current_file = file;
}
static void zconf_endfile(void)
{
struct buffer *parent;
current_file = current_file->parent;
if (current_file)
yylineno = current_file->lineno;
parent = current_buf->parent;
if (parent) {
fclose(yyin);
yy_delete_buffer(YY_CURRENT_BUFFER);
yy_switch_to_buffer(parent->state);
}
free(current_buf);
current_buf = parent;
}
int zconf_lineno(void)
{
return current_pos.lineno;
}
const char *zconf_curname(void)
{
return current_pos.file ? current_pos.file->name : "<none>";
}
xen/tools/kconfig/list.h
+1
View File
@@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef LIST_H
#define LIST_H
xen/tools/kconfig/lkc.h
+12 -26
View File
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#ifndef LKC_H
@@ -30,10 +30,6 @@ static inline const char *CONFIG_prefix(void)
#undef CONFIG_
#define CONFIG_ CONFIG_prefix()
#define TF_COMMAND 0x0001
#define TF_PARAM 0x0002
#define TF_OPTION 0x0004
enum conf_def_mode {
def_default,
def_yes,
@@ -42,18 +38,7 @@ enum conf_def_mode {
def_random
};
#define T_OPT_MODULES 1
#define T_OPT_DEFCONFIG_LIST 2
#define T_OPT_ENV 3
#define T_OPT_ALLNOCONFIG_Y 4
struct kconf_id {
int name;
int token;
unsigned int flags;
enum symbol_type stype;
};
extern int yylineno;
void zconfdump(FILE *out);
void zconf_starthelp(void);
FILE *zconf_fopen(const char *name);
@@ -64,8 +49,6 @@ const char *zconf_curname(void);
/* confdata.c */
const char *conf_get_configname(void);
const char *conf_get_autoconfig_name(void);
char *conf_get_default_confname(void);
void sym_set_change_count(int count);
void sym_add_change_count(int count);
bool conf_set_all_new_symbols(enum conf_def_mode mode);
@@ -86,21 +69,27 @@ void menu_warn(struct menu *menu, const char *fmt, ...);
struct menu *menu_add_menu(void);
void menu_end_menu(void);
void menu_add_entry(struct symbol *sym);
void menu_end_entry(void);
void menu_add_dep(struct expr *dep);
void menu_add_visibility(struct expr *dep);
struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
void menu_add_option(int token, char *arg);
void menu_add_option_modules(void);
void menu_add_option_defconfig_list(void);
void menu_add_option_allnoconfig_y(void);
void menu_finalize(struct menu *parent);
void menu_set_type(int type);
/* util.c */
struct file *file_lookup(const char *name);
int file_write_dep(const char *name);
void *xmalloc(size_t size);
void *xcalloc(size_t nmemb, size_t size);
void *xrealloc(void *p, size_t size);
char *xstrdup(const char *s);
char *xstrndup(const char *s, size_t n);
/* lexer.l */
int yylex(void);
struct gstr {
size_t len;
@@ -118,16 +107,13 @@ void str_printf(struct gstr *gs, const char *fmt, ...);
const char *str_get(struct gstr *gs);
/* symbol.c */
extern struct expr *sym_env_list;
void sym_init(void);
void sym_clear_all_valid(void);
struct symbol *sym_choice_default(struct symbol *sym);
struct property *sym_get_range_prop(struct symbol *sym);
const char *sym_get_string_default(struct symbol *sym);
struct symbol *sym_check_deps(struct symbol *sym);
struct property *prop_alloc(enum prop_type type, struct symbol *sym);
struct symbol *prop_get_symbol(struct property *prop);
struct property *sym_get_env_prop(struct symbol *sym);
static inline tristate sym_get_tristate_value(struct symbol *sym)
{
xen/tools/kconfig/lkc_proto.h
+17 -4
View File
@@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
#include <stdarg.h>
/* confdata.c */
@@ -6,10 +7,10 @@ int conf_read(const char *name);
int conf_read_simple(const char *name, int);
int conf_write_defconfig(const char *name);
int conf_write(const char *name);
int conf_write_autoconf(void);
int conf_write_autoconf(int overwrite);
bool conf_get_changed(void);
void conf_set_changed_callback(void (*fn)(void));
void conf_set_message_callback(void (*fn)(const char *fmt, va_list ap));
void conf_set_message_callback(void (*fn)(const char *s));
/* menu.c */
extern struct menu rootmenu;
@@ -30,7 +31,6 @@ extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
struct symbol * sym_lookup(const char *name, int flags);
struct symbol * sym_find(const char *name);
const char * sym_expand_string_value(const char *in);
const char * sym_escape_string_value(const char *in);
struct symbol ** sym_re_search(const char *pattern);
const char * sym_type_name(enum symbol_type type);
@@ -42,11 +42,24 @@ tristate sym_toggle_tristate_value(struct symbol *sym);
bool sym_string_valid(struct symbol *sym, const char *newval);
bool sym_string_within_range(struct symbol *sym, const char *str);
bool sym_set_string_value(struct symbol *sym, const char *newval);
bool sym_is_changable(struct symbol *sym);
bool sym_is_changeable(struct symbol *sym);
struct property * sym_get_choice_prop(struct symbol *sym);
const char * sym_get_string_value(struct symbol *sym);
const char * prop_get_type_name(enum prop_type type);
/* preprocess.c */
enum variable_flavor {
VAR_SIMPLE,
VAR_RECURSIVE,
VAR_APPEND,
};
void env_write_dep(FILE *f, const char *auto_conf_name);
void variable_add(const char *name, const char *value,
enum variable_flavor flavor);
void variable_all_del(void);
char *expand_dollar(const char **str);
char *expand_one_token(const char **str);
/* expr.c */
void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);
xen/tools/kconfig/lxdialog/.gitignore
-4
View File
@@ -1,4 +0,0 @@
#
# Generated files
#
lxdialog
xen/tools/kconfig/lxdialog/check-lxdialog.sh
-91
View File
@@ -1,91 +0,0 @@
#!/bin/sh
# Check ncurses compatibility
# What library to link
ldflags()
{
pkg-config --libs ncursesw 2>/dev/null && exit
pkg-config --libs ncurses 2>/dev/null && exit
for ext in so a dll.a dylib ; do
for lib in ncursesw ncurses curses ; do
$cc -print-file-name=lib${lib}.${ext} | grep -q /
if [ $? -eq 0 ]; then
echo "-l${lib}"
exit
fi
done
done
exit 1
}
# Where is ncurses.h?
ccflags()
{
if pkg-config --cflags ncursesw 2>/dev/null; then
echo '-DCURSES_LOC="<ncurses.h>" -DNCURSES_WIDECHAR=1'
elif pkg-config --cflags ncurses 2>/dev/null; then
echo '-DCURSES_LOC="<ncurses.h>"'
elif [ -f /usr/include/ncursesw/curses.h ]; then
echo '-I/usr/include/ncursesw -DCURSES_LOC="<curses.h>"'
echo ' -DNCURSES_WIDECHAR=1'
elif [ -f /usr/include/ncurses/ncurses.h ]; then
echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
elif [ -f /usr/include/ncurses/curses.h ]; then
echo '-I/usr/include/ncurses -DCURSES_LOC="<curses.h>"'
elif [ -f /usr/include/ncurses.h ]; then
echo '-DCURSES_LOC="<ncurses.h>"'
else
echo '-DCURSES_LOC="<curses.h>"'
fi
}
# Temp file, try to clean up after us
tmp=.lxdialog.tmp
trap "rm -f $tmp" 0 1 2 3 15
# Check if we can link to ncurses
check() {
$cc -x c - -o $tmp 2>/dev/null <<'EOF'
#include CURSES_LOC
main() {}
EOF
if [ $? != 0 ]; then
echo " *** Unable to find the ncurses libraries or the" 1>&2
echo " *** required header files." 1>&2
echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
echo " *** " 1>&2
echo " *** Install ncurses (ncurses-devel) and try again." 1>&2
echo " *** " 1>&2
exit 1
fi
}
usage() {
printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"
}
if [ $# -eq 0 ]; then
usage
exit 1
fi
cc=""
case "$1" in
"-check")
shift
cc="$@"
check
;;
"-ccflags")
ccflags
;;
"-ldflags")
shift
cc="$@"
ldflags
;;
"*")
usage
exit 1
;;
esac
xen/tools/kconfig/lxdialog/checklist.c
+1 -14
View File
@@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* checklist.c -- implements the checklist box
*
@@ -5,20 +6,6 @@
* Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
* Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "dialog.h"
xen/tools/kconfig/lxdialog/dialog.h
+2 -15
View File
@@ -1,21 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* dialog.h -- common declarations for all dialog modules
*
* AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/types.h>
@@ -29,7 +16,7 @@
#ifdef __sun__
#define CURS_MACROS
#endif
#include CURSES_LOC
#include <ncurses.h>
/*
* Colors in ncurses 1.9.9e do not work properly since foreground and
xen/tools/kconfig/lxdialog/inputbox.c
+3 -15
View File
@@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* inputbox.c -- implements the input box
*
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "dialog.h"
@@ -126,7 +113,8 @@ do_resize:
case KEY_DOWN:
break;
case KEY_BACKSPACE:
case 127:
case 8: /* ^H */
case 127: /* ^? */
if (pos) {
wattrset(dialog, dlg.inputbox.atr);
if (input_x == 0) {
xen/tools/kconfig/lxdialog/menubox.c
+1 -14
View File
@@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* menubox.c -- implements the menu box
*
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@cfw.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
xen/tools/kconfig/lxdialog/textbox.c
+1 -14
View File
@@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* textbox.c -- implements the text box
*
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "dialog.h"
xen/tools/kconfig/lxdialog/util.c
+1 -14
View File
@@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* util.c
*
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdarg.h>
xen/tools/kconfig/lxdialog/yesno.c
+1 -14
View File
@@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* yesno.c -- implements the yes/no box
*
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "dialog.h"
xen/tools/kconfig/mconf-cfg.sh
Executable
+47
View File
@@ -0,0 +1,47 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
PKG="ncursesw"
PKG2="ncurses"
if [ -n "$(command -v pkg-config)" ]; then
if pkg-config --exists $PKG; then
echo cflags=\"$(pkg-config --cflags $PKG)\"
echo libs=\"$(pkg-config --libs $PKG)\"
exit 0
fi
if pkg-config --exists $PKG2; then
echo cflags=\"$(pkg-config --cflags $PKG2)\"
echo libs=\"$(pkg-config --libs $PKG2)\"
exit 0
fi
fi
# Check the default paths in case pkg-config is not installed.
# (Even if it is installed, some distributions such as openSUSE cannot
# find ncurses by pkg-config.)
if [ -f /usr/include/ncursesw/ncurses.h ]; then
echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
echo libs=\"-lncursesw\"
exit 0
fi
if [ -f /usr/include/ncurses/ncurses.h ]; then
echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncurses\"
echo libs=\"-lncurses\"
exit 0
fi
if [ -f /usr/include/ncurses.h ]; then
echo cflags=\"-D_GNU_SOURCE\"
echo libs=\"-lncurses\"
exit 0
fi
echo >&2 "*"
echo >&2 "* Unable to find the ncurses package."
echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
echo >&2 "* depending on your distribution)."
echo >&2 "*"
exit 1
xen/tools/kconfig/mconf.c
+12 -15
View File
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*
* Introduced single menu mode (show all sub-menus in one large tree).
* 2002-11-06 Petr Baudis <pasky@ucw.cz>
@@ -245,7 +245,7 @@ search_help[] =
" Selected by: BAR [=n]\n"
"-----------------------------------------------------------------\n"
"o The line 'Type:' shows the type of the configuration option for\n"
" this symbol (boolean, tristate, string, ...)\n"
" this symbol (bool, tristate, string, ...)\n"
"o The line 'Prompt:' shows the text used in the menu structure for\n"
" this symbol\n"
"o The 'Defined at' line tells at what file / line number the symbol\n"
@@ -490,7 +490,6 @@ static void build_conf(struct menu *menu)
switch (prop->type) {
case P_MENU:
child_count++;
prompt = prompt;
if (single_menu_mode) {
item_make("%s%*c%s",
menu->data ? "-->" : "++>",
@@ -537,7 +536,7 @@ static void build_conf(struct menu *menu)
}
val = sym_get_tristate_value(sym);
if (sym_is_changable(sym)) {
if (sym_is_changeable(sym)) {
switch (type) {
case S_BOOLEAN:
item_make("[%c]", val == no ? ' ' : '*');
@@ -588,7 +587,7 @@ static void build_conf(struct menu *menu)
} else {
switch (type) {
case S_BOOLEAN:
if (sym_is_changable(sym))
if (sym_is_changeable(sym))
item_make("[%c]", val == no ? ' ' : '*');
else
item_make("-%c-", val == no ? ' ' : '*');
@@ -601,7 +600,7 @@ static void build_conf(struct menu *menu)
case mod: ch = 'M'; break;
default: ch = ' '; break;
}
if (sym_is_changable(sym)) {
if (sym_is_changeable(sym)) {
if (sym->rev_dep.tri == mod)
item_make("{%c}", ch);
else
@@ -618,7 +617,7 @@ static void build_conf(struct menu *menu)
if (tmp < 0)
tmp = 0;
item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
(sym_has_value(sym) || !sym_is_changable(sym)) ?
(sym_has_value(sym) || !sym_is_changeable(sym)) ?
"" : " (NEW)");
item_set_tag('s');
item_set_data(menu);
@@ -626,7 +625,7 @@ static void build_conf(struct menu *menu)
}
}
item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
(sym_has_value(sym) || !sym_is_changable(sym)) ?
(sym_has_value(sym) || !sym_is_changeable(sym)) ?
"" : " (NEW)");
if (menu->prompt->type == P_MENU) {
item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
@@ -772,16 +771,13 @@ static void show_helptext(const char *title, const char *text)
show_textbox(title, text, 0, 0);
}
static void conf_message_callback(const char *fmt, va_list ap)
static void conf_message_callback(const char *s)
{
char buf[PATH_MAX+1];
vsnprintf(buf, sizeof(buf), fmt, ap);
if (save_and_exit) {
if (!silent)
printf("%s", buf);
printf("%s", s);
} else {
show_textbox(NULL, buf, 6, 60);
show_textbox(NULL, s, 6, 60);
}
}
@@ -940,7 +936,7 @@ static void conf_save(void)
set_config_filename(dialog_input_result);
return;
}
show_textbox(NULL, "Can't create file! Probably a nonexistent directory.", 5, 60);
show_textbox(NULL, "Can't create file!", 5, 60);
break;
case 1:
show_helptext("Save Alternate Configuration", save_config_help);
@@ -977,6 +973,7 @@ static int handle_exit(void)
"\n\n");
return 1;
}
conf_write_autoconf(0);
/* fall through */
case -1:
if (!silent)
xen/tools/kconfig/menu.c
+222 -52
View File
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#include <ctype.h>
@@ -62,13 +62,8 @@ void menu_add_entry(struct symbol *sym)
menu_add_symbol(P_SYMBOL, sym, NULL);
}
void menu_end_entry(void)
{
}
struct menu *menu_add_menu(void)
{
menu_end_entry();
last_entry_ptr = &current_entry->list;
return current_menu = current_entry;
}
@@ -79,19 +74,23 @@ void menu_end_menu(void)
current_menu = current_menu->parent;
}
static struct expr *menu_check_dep(struct expr *e)
/*
* Rewrites 'm' to 'm' && MODULES, so that it evaluates to 'n' when running
* without modules
*/
static struct expr *rewrite_m(struct expr *e)
{
if (!e)
return e;
switch (e->type) {
case E_NOT:
e->left.expr = menu_check_dep(e->left.expr);
e->left.expr = rewrite_m(e->left.expr);
break;
case E_OR:
case E_AND:
e->left.expr = menu_check_dep(e->left.expr);
e->right.expr = menu_check_dep(e->right.expr);
e->left.expr = rewrite_m(e->left.expr);
e->right.expr = rewrite_m(e->right.expr);
break;
case E_SYMBOL:
/* change 'm' into 'm' && MODULES */
@@ -106,7 +105,7 @@ static struct expr *menu_check_dep(struct expr *e)
void menu_add_dep(struct expr *dep)
{
current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
current_entry->dep = expr_alloc_and(current_entry->dep, dep);
}
void menu_set_type(int type)
@@ -131,7 +130,7 @@ static struct property *menu_add_prop(enum prop_type type, char *prompt, struct
prop->menu = current_entry;
prop->expr = expr;
prop->visible.expr = menu_check_dep(dep);
prop->visible.expr = dep;
if (prompt) {
if (isspace(*prompt)) {
@@ -196,31 +195,26 @@ void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
}
void menu_add_option(int token, char *arg)
void menu_add_option_modules(void)
{
switch (token) {
case T_OPT_MODULES:
if (modules_sym)
zconf_error("symbol '%s' redefines option 'modules'"
" already defined by symbol '%s'",
current_entry->sym->name,
modules_sym->name
);
zconf_error("symbol '%s' redefines option 'modules' already defined by symbol '%s'",
current_entry->sym->name, modules_sym->name);
modules_sym = current_entry->sym;
break;
case T_OPT_DEFCONFIG_LIST:
}
void menu_add_option_defconfig_list(void)
{
if (!sym_defconfig_list)
sym_defconfig_list = current_entry->sym;
else if (sym_defconfig_list != current_entry->sym)
zconf_error("trying to redefine defconfig symbol");
break;
case T_OPT_ENV:
prop_add_env(arg);
break;
case T_OPT_ALLNOCONFIG_Y:
current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
break;
sym_defconfig_list->flags |= SYMBOL_NO_WRITE;
}
void menu_add_option_allnoconfig_y(void)
{
current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
}
static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
@@ -233,6 +227,8 @@ static void sym_check_prop(struct symbol *sym)
{
struct property *prop;
struct symbol *sym2;
char *use;
for (prop = sym->prop; prop; prop = prop->next) {
switch (prop->type) {
case P_DEFAULT:
@@ -250,20 +246,32 @@ static void sym_check_prop(struct symbol *sym)
"'%s': number is invalid",
sym->name);
}
if (sym_is_choice(sym)) {
struct property *choice_prop =
sym_get_choice_prop(sym2);
if (!choice_prop ||
prop_get_symbol(choice_prop) != sym)
prop_warn(prop,
"choice default symbol '%s' is not contained in the choice",
sym2->name);
}
break;
case P_SELECT:
case P_IMPLY:
use = prop->type == P_SELECT ? "select" : "imply";
sym2 = prop_get_symbol(prop);
if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
prop_warn(prop,
"config symbol '%s' uses select, but is "
"not boolean or tristate", sym->name);
"config symbol '%s' uses %s, but is "
"not bool or tristate", sym->name, use);
else if (sym2->type != S_UNKNOWN &&
sym2->type != S_BOOLEAN &&
sym2->type != S_TRISTATE)
prop_warn(prop,
"'%s' has wrong type. 'select' only "
"accept arguments of boolean and "
"tristate type", sym2->name);
"'%s' has wrong type. '%s' only "
"accept arguments of bool and "
"tristate type", sym2->name, use);
break;
case P_RANGE:
if (sym->type != S_INT && sym->type != S_HEX)
@@ -288,6 +296,11 @@ void menu_finalize(struct menu *parent)
sym = parent->sym;
if (parent->list) {
/*
* This menu node has children. We (recursively) process them
* and propagate parent dependencies before moving on.
*/
if (sym && sym_is_choice(sym)) {
if (sym->type == S_UNKNOWN) {
/* find the first choice value to find out choice type */
@@ -305,65 +318,169 @@ void menu_finalize(struct menu *parent)
if (menu->sym && menu->sym->type == S_UNKNOWN)
menu_set_type(sym->type);
}
/*
* Use the choice itself as the parent dependency of
* the contained items. This turns the mode of the
* choice into an upper bound on the visibility of the
* choice value symbols.
*/
parentdep = expr_alloc_symbol(sym);
} else if (parent->prompt)
/* Menu node for 'menu' */
parentdep = parent->prompt->visible.expr;
else
/* Menu node for 'if' */
parentdep = parent->dep;
/* For each child menu node... */
for (menu = parent->list; menu; menu = menu->next) {
basedep = expr_transform(menu->dep);
/*
* Propagate parent dependencies to the child menu
* node, also rewriting and simplifying expressions
*/
basedep = rewrite_m(menu->dep);
basedep = expr_transform(basedep);
basedep = expr_alloc_and(expr_copy(parentdep), basedep);
basedep = expr_eliminate_dups(basedep);
menu->dep = basedep;
if (menu->sym)
/*
* Note: For symbols, all prompts are included
* too in the symbol's own property list
*/
prop = menu->sym->prop;
else
/*
* For non-symbol menu nodes, we just need to
* handle the prompt
*/
prop = menu->prompt;
/* For each property... */
for (; prop; prop = prop->next) {
if (prop->menu != menu)
/*
* Two possibilities:
*
* 1. The property lacks dependencies
* and so isn't location-specific,
* e.g. an 'option'
*
* 2. The property belongs to a symbol
* defined in multiple locations and
* is from some other location. It
* will be handled there in that
* case.
*
* Skip the property.
*/
continue;
dep = expr_transform(prop->visible.expr);
/*
* Propagate parent dependencies to the
* property's condition, rewriting and
* simplifying expressions at the same time
*/
dep = rewrite_m(prop->visible.expr);
dep = expr_transform(dep);
dep = expr_alloc_and(expr_copy(basedep), dep);
dep = expr_eliminate_dups(dep);
if (menu->sym && menu->sym->type != S_TRISTATE)
dep = expr_trans_bool(dep);
prop->visible.expr = dep;
/*
* Handle selects and implies, which modify the
* dependencies of the selected/implied symbol
*/
if (prop->type == P_SELECT) {
struct symbol *es = prop_get_symbol(prop);
es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
} else if (prop->type == P_IMPLY) {
struct symbol *es = prop_get_symbol(prop);
es->implied.expr = expr_alloc_or(es->implied.expr,
expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
}
}
}
if (sym && sym_is_choice(sym))
expr_free(parentdep);
/*
* Recursively process children in the same fashion before
* moving on
*/
for (menu = parent->list; menu; menu = menu->next)
menu_finalize(menu);
} else if (sym) {
/*
* Automatic submenu creation. If sym is a symbol and A, B, C,
* ... are consecutive items (symbols, menus, ifs, etc.) that
* all depend on sym, then the following menu structure is
* created:
*
* sym
* +-A
* +-B
* +-C
* ...
*
* This also works recursively, giving the following structure
* if A is a symbol and B depends on A:
*
* sym
* +-A
* | +-B
* +-C
* ...
*/
basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
basedep = expr_eliminate_dups(expr_transform(basedep));
/* Examine consecutive elements after sym */
last_menu = NULL;
for (menu = parent->next; menu; menu = menu->next) {
dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
if (!expr_contains_symbol(dep, sym))
/* No dependency, quit */
break;
if (expr_depends_symbol(dep, sym))
/* Absolute dependency, put in submenu */
goto next;
/*
* Also consider it a dependency on sym if our
* dependencies contain sym and are a "superset" of
* sym's dependencies, e.g. '(sym || Q) && R' when sym
* depends on R.
*
* Note that 'R' might be from an enclosing menu or if,
* making this a more common case than it might seem.
*/
dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
dep = expr_eliminate_dups(expr_transform(dep));
dep2 = expr_copy(basedep);
expr_eliminate_eq(&dep, &dep2);
expr_free(dep);
if (!expr_is_yes(dep2)) {
/* Not superset, quit */
expr_free(dep2);
break;
}
/* Superset, put in submenu */
expr_free(dep2);
next:
menu_finalize(menu);
menu->parent = parent;
last_menu = menu;
}
expr_free(basedep);
if (last_menu) {
parent->list = parent->next;
parent->next = last_menu->next;
@@ -412,6 +529,35 @@ void menu_finalize(struct menu *parent)
*ep = expr_alloc_one(E_LIST, NULL);
(*ep)->right.sym = menu->sym;
}
/*
* This code serves two purposes:
*
* (1) Flattening 'if' blocks, which do not specify a submenu
* and only add dependencies.
*
* (Automatic submenu creation might still create a submenu
* from an 'if' before this code runs.)
*
* (2) "Undoing" any automatic submenus created earlier below
* promptless symbols.
*
* Before:
*
* A
* if ... (or promptless symbol)
* +-B
* +-C
* D
*
* After:
*
* A
* if ... (or promptless symbol)
* B
* C
* D
*/
if (menu->list && (!menu->prompt || !menu->prompt->text)) {
for (last_menu = menu->list; ; last_menu = last_menu->next) {
last_menu->parent = parent;
@@ -436,6 +582,15 @@ void menu_finalize(struct menu *parent)
sym->flags |= SYMBOL_WARNED;
}
/*
* For non-optional choices, add a reverse dependency (corresponding to
* a select) of '<visibility> && m'. This prevents the user from
* setting the choice mode to 'n' when the choice is visible.
*
* This would also work for non-choice symbols, but only non-optional
* choices clear SYMBOL_OPTIONAL as of writing. Choices are implemented
* as a type of symbol.
*/
if (sym && !sym_is_optional(sym) && parent->prompt) {
sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
expr_alloc_and(parent->prompt->visible.expr,
@@ -477,7 +632,7 @@ bool menu_is_visible(struct menu *menu)
if (menu->visibility) {
if (expr_calc_value(menu->visibility) == no)
return no;
return false;
}
sym = menu->sym;
@@ -612,13 +767,30 @@ static struct property *get_symbol_prop(struct symbol *sym)
return prop;
}
static void get_symbol_props_str(struct gstr *r, struct symbol *sym,
enum prop_type tok, const char *prefix)
{
bool hit = false;
struct property *prop;
for_all_properties(sym, prop, tok) {
if (!hit) {
str_append(r, prefix);
hit = true;
} else
str_printf(r, " && ");
expr_gstr_print(prop->expr, r);
}
if (hit)
str_append(r, "\n");
}
/*
* head is optional and may be NULL
*/
static void get_symbol_str(struct gstr *r, struct symbol *sym,
struct list_head *head)
{
bool hit;
struct property *prop;
if (sym && sym->name) {
@@ -648,22 +820,20 @@ static void get_symbol_str(struct gstr *r, struct symbol *sym,
}
}
hit = false;
for_all_properties(sym, prop, P_SELECT) {
if (!hit) {
str_append(r, " Selects: ");
hit = true;
} else
str_printf(r, " && ");
expr_gstr_print(prop->expr, r);
}
if (hit)
str_append(r, "\n");
get_symbol_props_str(r, sym, P_SELECT, " Selects: ");
if (sym->rev_dep.expr) {
str_append(r, " Selected by: ");
expr_gstr_print(sym->rev_dep.expr, r);
str_append(r, "\n");
expr_gstr_print_revdep(sym->rev_dep.expr, r, yes, " Selected by [y]:\n");
expr_gstr_print_revdep(sym->rev_dep.expr, r, mod, " Selected by [m]:\n");
expr_gstr_print_revdep(sym->rev_dep.expr, r, no, " Selected by [n]:\n");
}
get_symbol_props_str(r, sym, P_IMPLY, " Implies: ");
if (sym->implied.expr) {
expr_gstr_print_revdep(sym->implied.expr, r, yes, " Implied by [y]:\n");
expr_gstr_print_revdep(sym->implied.expr, r, mod, " Implied by [m]:\n");
expr_gstr_print_revdep(sym->implied.expr, r, no, " Implied by [n]:\n");
}
str_append(r, "\n\n");
}
xen/tools/kconfig/merge_config.sh
+56 -29
View File
@@ -1,4 +1,6 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# merge_config.sh - Takes a list of config fragment values, and merges
# them one by one. Provides warnings on overridden values, and specified
# values that did not make it to the resulting .config file (due to missed
@@ -10,21 +12,13 @@
#
# Copyright (c) 2009-2010 Wind River Systems, Inc.
# Copyright 2011 Linaro
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
set -e
clean_up() {
rm -f $TMP_FILE
exit
rm -f $MERGE_FILE
}
trap clean_up HUP INT TERM
usage() {
echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
@@ -32,13 +26,18 @@ usage() {
echo " -m only merge the fragments, do not execute the make command"
echo " -n use allnoconfig instead of alldefconfig"
echo " -r list redundant entries when merging fragments"
echo " -O dir to put generated output files"
echo " -y make builtin have precedence over modules"
echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead."
echo
echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable."
}
RUNMAKE=true
ALLTARGET=alldefconfig
WARNREDUN=false
BUILTIN=false
OUTPUT=.
CONFIG_PREFIX=${CONFIG_-CONFIG_}
while true; do
case $1 in
@@ -61,6 +60,11 @@ while true; do
shift
continue
;;
"-y")
BUILTIN=true
shift
continue
;;
"-O")
if [ -d $2 ];then
OUTPUT=$(echo $2 | sed 's/\/*$//')
@@ -77,11 +81,19 @@ while true; do
esac
done
if [ "$#" -lt 2 ] ; then
if [ "$#" -lt 1 ] ; then
usage
exit
fi
if [ -z "$KCONFIG_CONFIG" ]; then
if [ "$OUTPUT" != . ]; then
KCONFIG_CONFIG=$(readlink -m -- "$OUTPUT/.config")
else
KCONFIG_CONFIG=.config
fi
fi
INITFILE=$1
shift;
@@ -91,44 +103,61 @@ if [ ! -r "$INITFILE" ]; then
fi
MERGE_LIST=$*
SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p"
SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p"
TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXXXXXX)
echo "Using $INITFILE as base"
trap clean_up EXIT
cat $INITFILE > $TMP_FILE
# Merge files, printing warnings on overridden values
for MERGE_FILE in $MERGE_LIST ; do
echo "Merging $MERGE_FILE"
if [ ! -r "$MERGE_FILE" ]; then
echo "The merge file '$MERGE_FILE' does not exist. Exit." >&2
for ORIG_MERGE_FILE in $MERGE_LIST ; do
echo "Merging $ORIG_MERGE_FILE"
if [ ! -r "$ORIG_MERGE_FILE" ]; then
echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2
exit 1
fi
CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
cat $ORIG_MERGE_FILE > $MERGE_FILE
CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE)
for CFG in $CFG_LIST ; do
grep -q -w $CFG $TMP_FILE || continue
PREV_VAL=$(grep -w $CFG $TMP_FILE)
NEW_VAL=$(grep -w $CFG $MERGE_FILE)
if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
echo Value of $CFG is redefined by fragment $MERGE_FILE:
BUILTIN_FLAG=false
if [ "$BUILTIN" = "true" ] && [ "${NEW_VAL#CONFIG_*=}" = "m" ] && [ "${PREV_VAL#CONFIG_*=}" = "y" ]; then
echo Previous value: $PREV_VAL
echo New value: $NEW_VAL
echo -y passed, will not demote y to m
echo
BUILTIN_FLAG=true
elif [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
echo Value of $CFG is redefined by fragment $ORIG_MERGE_FILE:
echo Previous value: $PREV_VAL
echo New value: $NEW_VAL
echo
elif [ "$WARNREDUN" = "true" ]; then
echo Value of $CFG is redundant by fragment $MERGE_FILE:
echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE:
fi
if [ "$BUILTIN_FLAG" = "false" ]; then
sed -i "/$CFG[ =]/d" $TMP_FILE
else
sed -i "/$CFG[ =]/d" $MERGE_FILE
fi
done
cat $MERGE_FILE >> $TMP_FILE
done
if [ "$RUNMAKE" = "false" ]; then
cp $TMP_FILE $OUTPUT/.config
cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG"
echo "#"
echo "# merged configuration written to $OUTPUT/.config (needs make)"
echo "# merged configuration written to $KCONFIG_CONFIG (needs make)"
echo "#"
clean_up
exit
fi
@@ -147,10 +176,10 @@ make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET
# Check all specified config values took (might have missed-dependency issues)
for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
for CFG in $(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $TMP_FILE); do
REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
ACTUAL_VAL=$(grep -w -e "$CFG" $OUTPUT/.config)
ACTUAL_VAL=$(grep -w -e "$CFG" "$KCONFIG_CONFIG" || true)
if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
echo "Value requested for $CFG not in final .config"
echo "Requested value: $REQUESTED_VAL"
@@ -158,5 +187,3 @@ for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
echo ""
fi
done
clean_up
xen/tools/kconfig/nconf-cfg.sh
Executable
+47
View File
@@ -0,0 +1,47 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
PKG="ncursesw menuw panelw"
PKG2="ncurses menu panel"
if [ -n "$(command -v pkg-config)" ]; then
if pkg-config --exists $PKG; then
echo cflags=\"$(pkg-config --cflags $PKG)\"
echo libs=\"$(pkg-config --libs $PKG)\"
exit 0
fi
if pkg-config --exists $PKG2; then
echo cflags=\"$(pkg-config --cflags $PKG2)\"
echo libs=\"$(pkg-config --libs $PKG2)\"
exit 0
fi
fi
# Check the default paths in case pkg-config is not installed.
# (Even if it is installed, some distributions such as openSUSE cannot
# find ncurses by pkg-config.)
if [ -f /usr/include/ncursesw/ncurses.h ]; then
echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
echo libs=\"-lncursesw -lmenuw -lpanelw\"
exit 0
fi
if [ -f /usr/include/ncurses/ncurses.h ]; then
echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncurses\"
echo libs=\"-lncurses -lmenu -lpanel\"
exit 0
fi
if [ -f /usr/include/ncurses.h ]; then
echo cflags=\"-D_GNU_SOURCE\"
echo libs=\"-lncurses -lmenu -lpanel\"
exit 0
fi
echo >&2 "*"
echo >&2 "* Unable to find the ncurses package."
echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
echo >&2 "* depending on your distribution)."
echo >&2 "*"
exit 1
xen/tools/kconfig/nconf.c
+20 -22
View File
@@ -1,11 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
* Released under the terms of the GNU GPL v2.0.
* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
*
* Derived from menuconfig.
*
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <string.h>
#include <stdlib.h>
@@ -269,7 +270,7 @@ static struct mitem k_menu_items[MAX_MENU_ITEMS];
static int items_num;
static int global_exit;
/* the currently selected button */
const char *current_instructions = menu_instructions;
static const char *current_instructions = menu_instructions;
static char *dialog_input_result;
static int dialog_input_result_len;
@@ -303,7 +304,7 @@ struct function_keys {
};
static const int function_keys_num = 9;
struct function_keys function_keys[] = {
static struct function_keys function_keys[] = {
{
.key_str = "F1",
.func = "Help",
@@ -506,7 +507,7 @@ static int get_mext_match(const char *match_str, match_f flag)
index = (index + items_num) % items_num;
while (true) {
char *str = k_menu_items[index].str;
if (strcasestr(str, match_str) != 0)
if (strcasestr(str, match_str) != NULL)
return index;
if (flag == FIND_NEXT_MATCH_UP ||
flag == MATCH_TINKER_PATTERN_UP)
@@ -672,6 +673,7 @@ static int do_exit(void)
"Your configuration changes were NOT saved.",
1,
"<OK>");
conf_write_autoconf(0);
break;
default:
btn_dialog(
@@ -801,7 +803,7 @@ static void build_conf(struct menu *menu)
}
val = sym_get_tristate_value(sym);
if (sym_is_changable(sym)) {
if (sym_is_changeable(sym)) {
switch (type) {
case S_BOOLEAN:
item_make(menu, 't', "[%c]",
@@ -855,7 +857,7 @@ static void build_conf(struct menu *menu)
} else {
switch (type) {
case S_BOOLEAN:
if (sym_is_changable(sym))
if (sym_is_changeable(sym))
item_make(menu, 't', "[%c]",
val == no ? ' ' : '*');
else
@@ -874,7 +876,7 @@ static void build_conf(struct menu *menu)
ch = ' ';
break;
}
if (sym_is_changable(sym)) {
if (sym_is_changeable(sym)) {
if (sym->rev_dep.tri == mod)
item_make(menu,
't', "{%c}", ch);
@@ -894,14 +896,14 @@ static void build_conf(struct menu *menu)
item_add_str("%*c%s%s", tmp, ' ',
menu_get_prompt(menu),
(sym_has_value(sym) ||
!sym_is_changable(sym)) ? "" :
!sym_is_changeable(sym)) ? "" :
" (NEW)");
goto conf_childs;
}
}
item_add_str("%*c%s%s", indent + 1, ' ',
menu_get_prompt(menu),
(sym_has_value(sym) || !sym_is_changable(sym)) ?
(sym_has_value(sym) || !sym_is_changeable(sym)) ?
"" : " (NEW)");
if (menu->prompt && menu->prompt->type == P_MENU) {
item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
@@ -1046,7 +1048,7 @@ static int do_match(int key, struct match_state *state, int *ans)
state->match_direction = FIND_NEXT_MATCH_UP;
*ans = get_mext_match(state->pattern,
state->match_direction);
} else if (key == KEY_BACKSPACE || key == 127) {
} else if (key == KEY_BACKSPACE || key == 8 || key == 127) {
state->pattern[strlen(state->pattern)-1] = '\0';
adj_match_dir(&state->match_direction);
} else
@@ -1065,7 +1067,7 @@ static int do_match(int key, struct match_state *state, int *ans)
static void conf(struct menu *menu)
{
struct menu *submenu = 0;
struct menu *submenu = NULL;
const char *prompt = menu_get_prompt(menu);
struct symbol *sym;
int res;
@@ -1208,12 +1210,9 @@ static void conf(struct menu *menu)
}
}
static void conf_message_callback(const char *fmt, va_list ap)
static void conf_message_callback(const char *s)
{
char buf[1024];
vsnprintf(buf, sizeof(buf), fmt, ap);
btn_dialog(main_window, buf, 1, "<OK>");
btn_dialog(main_window, s, 1, "<OK>");
}
static void show_help(struct menu *menu)
@@ -1232,7 +1231,7 @@ static void show_help(struct menu *menu)
static void conf_choice(struct menu *menu)
{
const char *prompt = menu_get_prompt(menu);
struct menu *child = 0;
struct menu *child = NULL;
struct symbol *active;
int selected_index = 0;
int last_top_row = 0;
@@ -1439,8 +1438,7 @@ static void conf_save(void)
set_config_filename(dialog_input_result);
return;
}
btn_dialog(main_window, "Can't create file! "
"Probably a nonexistent directory.",
btn_dialog(main_window, "Can't create file!",
1, "<OK>");
break;
case 1:
@@ -1454,7 +1452,7 @@ static void conf_save(void)
}
}
void setup_windows(void)
static void setup_windows(void)
{
int lines, columns;
xen/tools/kconfig/nconf.gui.c
+19 -11
View File
@@ -1,11 +1,11 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
* Released under the terms of the GNU GPL v2.0.
* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
*
* Derived from menuconfig.
*
*/
#include "nconf.h"
#include "lkc.h"
/* a list of all the different widgets we use */
attributes_t attributes[ATTR_MAX+1] = {0};
@@ -129,7 +129,7 @@ static void no_colors_theme(void)
mkattrn(FUNCTION_TEXT, A_REVERSE);
}
void set_colors()
void set_colors(void)
{
start_color();
use_default_colors();
@@ -192,7 +192,7 @@ const char *get_line(const char *text, int line_no)
int lines = 0;
if (!text)
return 0;
return NULL;
for (i = 0; text[i] != '\0' && lines < line_no; i++)
if (text[i] == '\n')
@@ -364,15 +364,17 @@ int dialog_inputbox(WINDOW *main_window,
WINDOW *prompt_win;
WINDOW *form_win;
PANEL *panel;
int i, x, y;
int i, x, y, lines, columns, win_lines, win_cols;
int res = -1;
int cursor_position = strlen(init);
int cursor_form_win;
char *result = *resultp;
getmaxyx(stdscr, lines, columns);
if (strlen(init)+1 > *result_len) {
*result_len = strlen(init)+1;
*resultp = result = realloc(result, *result_len);
*resultp = result = xrealloc(result, *result_len);
}
/* find the widest line of msg: */
@@ -386,14 +388,19 @@ int dialog_inputbox(WINDOW *main_window,
if (title)
prompt_width = max(prompt_width, strlen(title));
win_lines = min(prompt_lines+6, lines-2);
win_cols = min(prompt_width+7, columns-2);
prompt_lines = max(win_lines-6, 0);
prompt_width = max(win_cols-7, 0);
/* place dialog in middle of screen */
y = (getmaxy(stdscr)-(prompt_lines+4))/2;
x = (getmaxx(stdscr)-(prompt_width+4))/2;
y = (lines-win_lines)/2;
x = (columns-win_cols)/2;
strncpy(result, init, *result_len);
/* create the windows */
win = newwin(prompt_lines+6, prompt_width+7, y, x);
win = newwin(win_lines, win_cols, y, x);
prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
keypad(form_win, TRUE);
@@ -432,7 +439,8 @@ int dialog_inputbox(WINDOW *main_window,
case KEY_F(F_EXIT):
case KEY_F(F_BACK):
break;
case 127:
case 8: /* ^H */
case 127: /* ^? */
case KEY_BACKSPACE:
if (cursor_position > 0) {
memmove(&result[cursor_position-1],
xen/tools/kconfig/nconf.h
+3 -6
View File
@@ -1,9 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
* Released under the terms of the GNU GPL v2.0.
* Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
*
* Derived from menuconfig.
*
*/
#include <ctype.h>
@@ -14,7 +13,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <curses.h>
#include <ncurses.h>
#include <menu.h>
#include <panel.h>
#include <form.h>
@@ -23,8 +22,6 @@
#include <time.h>
#include <sys/time.h>
#include "ncurses.h"
#define max(a, b) ({\
typeof(a) _a = a;\
typeof(b) _b = b;\
xen/tools/kconfig/zconf.y → xen/tools/kconfig/parser.y
+197 -208
View File
@@ -1,8 +1,8 @@
%{
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
%{
#include <ctype.h>
#include <stdarg.h>
@@ -20,62 +20,69 @@
int cdebug = PRINTD;
extern int zconflex(void);
static void yyerror(const char *err);
static void zconfprint(const char *err, ...);
static void zconf_error(const char *err, ...);
static void zconferror(const char *err);
static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
static bool zconf_endtoken(const char *tokenname,
const char *expected_tokenname);
struct symbol *symbol_hash[SYMBOL_HASHSIZE];
static struct menu *current_menu, *current_entry;
%}
%expect 30
%union
{
char *string;
struct file *file;
struct symbol *symbol;
struct expr *expr;
struct menu *menu;
const struct kconf_id *id;
enum symbol_type type;
enum variable_flavor flavor;
}
%token <id>T_MAINMENU
%token <id>T_MENU
%token <id>T_ENDMENU
%token <id>T_SOURCE
%token <id>T_CHOICE
%token <id>T_ENDCHOICE
%token <id>T_COMMENT
%token <id>T_CONFIG
%token <id>T_MENUCONFIG
%token <id>T_HELP
%token <string> T_HELPTEXT
%token <id>T_IF
%token <id>T_ENDIF
%token <id>T_DEPENDS
%token <id>T_OPTIONAL
%token <id>T_PROMPT
%token <id>T_TYPE
%token <id>T_DEFAULT
%token <id>T_SELECT
%token <id>T_RANGE
%token <id>T_VISIBLE
%token <id>T_OPTION
%token <id>T_ON
%token <string> T_WORD
%token <string> T_WORD_QUOTE
%token T_UNEQUAL
%token T_LESS
%token T_LESS_EQUAL
%token T_GREATER
%token T_GREATER_EQUAL
%token T_ALLNOCONFIG_Y
%token T_BOOL
%token T_CHOICE
%token T_CLOSE_PAREN
%token T_COLON_EQUAL
%token T_COMMENT
%token T_CONFIG
%token T_DEFAULT
%token T_DEFCONFIG_LIST
%token T_DEF_BOOL
%token T_DEF_TRISTATE
%token T_DEPENDS
%token T_ENDCHOICE
%token T_ENDIF
%token T_ENDMENU
%token T_HELP
%token T_HEX
%token T_IF
%token T_IMPLY
%token T_INT
%token T_MAINMENU
%token T_MENU
%token T_MENUCONFIG
%token T_MODULES
%token T_ON
%token T_OPEN_PAREN
%token T_OPTION
%token T_OPTIONAL
%token T_PLUS_EQUAL
%token T_PROMPT
%token T_RANGE
%token T_SELECT
%token T_SOURCE
%token T_STRING
%token T_TRISTATE
%token T_VISIBLE
%token T_EOL
%token <string> T_ASSIGN_VAL
%left T_OR
%left T_AND
@@ -84,13 +91,15 @@ static struct menu *current_menu, *current_entry;
%nonassoc T_NOT
%type <string> prompt
%type <symbol> nonconst_symbol
%type <symbol> symbol
%type <type> type logic_type default
%type <expr> expr
%type <expr> if_expr
%type <id> end
%type <id> option_name
%type <string> end
%type <menu> if_entry menu_entry choice_entry
%type <string> symbol_option_arg word_opt
%type <string> word_opt assign_val
%type <flavor> assign_op
%destructor {
fprintf(stderr, "%s:%d: missing end statement for this entry\n",
@@ -99,71 +108,53 @@ static struct menu *current_menu, *current_entry;
menu_end_menu();
} if_entry menu_entry choice_entry
%{
/* Include zconf.hash.c here so it can see the token constants. */
#include "zconf.hash.c"
%}
%%
input: nl start | start;
input: mainmenu_stmt stmt_list | stmt_list;
start: mainmenu_stmt stmt_list | stmt_list;
/* mainmenu entry */
mainmenu_stmt: T_MAINMENU prompt T_EOL
{
menu_add_prompt(P_MENU, $2, NULL);
};
stmt_list:
/* empty */
| stmt_list common_stmt
| stmt_list choice_stmt
| stmt_list menu_stmt
| stmt_list end { zconf_error("unexpected end statement"); }
| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
| stmt_list option_name error T_EOL
{
zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
}
| stmt_list error T_EOL { zconf_error("invalid statement"); }
;
option_name:
T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
;
common_stmt:
T_EOL
| if_stmt
if_stmt
| comment_stmt
| config_stmt
| menuconfig_stmt
| source_stmt
| assignment_stmt
;
option_error:
T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }
| error T_EOL { zconf_error("invalid option"); }
;
/* config/menuconfig entry */
config_entry_start: T_CONFIG T_WORD T_EOL
config_entry_start: T_CONFIG nonconst_symbol T_EOL
{
struct symbol *sym = sym_lookup($2, 0);
sym->flags |= SYMBOL_OPTIONAL;
menu_add_entry(sym);
printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
$2->flags |= SYMBOL_OPTIONAL;
menu_add_entry($2);
printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
};
config_stmt: config_entry_start config_option_list
{
menu_end_entry();
printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
};
menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
{
struct symbol *sym = sym_lookup($2, 0);
sym->flags |= SYMBOL_OPTIONAL;
menu_add_entry(sym);
printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
$2->flags |= SYMBOL_OPTIONAL;
menu_add_entry($2);
printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
};
menuconfig_stmt: menuconfig_entry_start config_option_list
@@ -172,26 +163,22 @@ menuconfig_stmt: menuconfig_entry_start config_option_list
current_entry->prompt->type = P_MENU;
else
zconfprint("warning: menuconfig statement without prompt");
menu_end_entry();
printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
};
config_option_list:
/* empty */
| config_option_list config_option
| config_option_list symbol_option
| config_option_list depends
| config_option_list help
| config_option_list option_error
| config_option_list T_EOL
;
config_option: T_TYPE prompt_stmt_opt T_EOL
config_option: type prompt_stmt_opt T_EOL
{
menu_set_type($1->stype);
menu_set_type($1);
printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
zconf_curname(), zconf_lineno(),
$1->stype);
$1);
};
config_option: T_PROMPT prompt if_expr T_EOL
@@ -200,56 +187,58 @@ config_option: T_PROMPT prompt if_expr T_EOL
printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
};
config_option: T_DEFAULT expr if_expr T_EOL
config_option: default expr if_expr T_EOL
{
menu_add_expr(P_DEFAULT, $2, $3);
if ($1->stype != S_UNKNOWN)
menu_set_type($1->stype);
if ($1 != S_UNKNOWN)
menu_set_type($1);
printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
zconf_curname(), zconf_lineno(),
$1->stype);
$1);
};
config_option: T_SELECT T_WORD if_expr T_EOL
config_option: T_SELECT nonconst_symbol if_expr T_EOL
{
menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
menu_add_symbol(P_SELECT, $2, $3);
printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
};
config_option: T_IMPLY nonconst_symbol if_expr T_EOL
{
menu_add_symbol(P_IMPLY, $2, $3);
printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
};
config_option: T_RANGE symbol symbol if_expr T_EOL
{
menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
};
symbol_option: T_OPTION symbol_option_list T_EOL
;
symbol_option_list:
/* empty */
| symbol_option_list T_WORD symbol_option_arg
config_option: T_OPTION T_MODULES T_EOL
{
const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
if (id && id->flags & TF_OPTION)
menu_add_option(id->token, $3);
else
zconfprint("warning: ignoring unknown option %s", $2);
free($2);
menu_add_option_modules();
};
symbol_option_arg:
/* empty */ { $$ = NULL; }
| T_EQUAL prompt { $$ = $2; }
;
config_option: T_OPTION T_DEFCONFIG_LIST T_EOL
{
menu_add_option_defconfig_list();
};
config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL
{
menu_add_option_allnoconfig_y();
};
/* choice entry */
choice: T_CHOICE word_opt T_EOL
{
struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
sym->flags |= SYMBOL_AUTO;
sym->flags |= SYMBOL_NO_WRITE;
menu_add_entry(sym);
menu_add_expr(P_CHOICE, NULL, NULL);
free($2);
printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
};
@@ -260,7 +249,7 @@ choice_entry: choice choice_option_list
choice_end: end
{
if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
if (zconf_endtoken($1, "choice")) {
menu_end_menu();
printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
}
@@ -274,8 +263,6 @@ choice_option_list:
| choice_option_list choice_option
| choice_option_list depends
| choice_option_list help
| choice_option_list T_EOL
| choice_option_list option_error
;
choice_option: T_PROMPT prompt if_expr T_EOL
@@ -284,15 +271,11 @@ choice_option: T_PROMPT prompt if_expr T_EOL
printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
};
choice_option: T_TYPE prompt_stmt_opt T_EOL
choice_option: logic_type prompt_stmt_opt T_EOL
{
if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
menu_set_type($1->stype);
menu_set_type($1);
printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
zconf_curname(), zconf_lineno(),
$1->stype);
} else
YYERROR;
zconf_curname(), zconf_lineno(), $1);
};
choice_option: T_OPTIONAL T_EOL
@@ -301,16 +284,28 @@ choice_option: T_OPTIONAL T_EOL
printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
};
choice_option: T_DEFAULT T_WORD if_expr T_EOL
choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
{
if ($1->stype == S_UNKNOWN) {
menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
menu_add_symbol(P_DEFAULT, $2, $3);
printd(DEBUG_PARSE, "%s:%d:default\n",
zconf_curname(), zconf_lineno());
} else
YYERROR;
};
type:
logic_type
| T_INT { $$ = S_INT; }
| T_HEX { $$ = S_HEX; }
| T_STRING { $$ = S_STRING; }
logic_type:
T_BOOL { $$ = S_BOOLEAN; }
| T_TRISTATE { $$ = S_TRISTATE; }
default:
T_DEFAULT { $$ = S_UNKNOWN; }
| T_DEF_BOOL { $$ = S_BOOLEAN; }
| T_DEF_TRISTATE { $$ = S_TRISTATE; }
choice_block:
/* empty */
| choice_block common_stmt
@@ -318,7 +313,7 @@ choice_block:
/* if entry */
if_entry: T_IF expr nl
if_entry: T_IF expr T_EOL
{
printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
menu_add_entry(NULL);
@@ -328,29 +323,15 @@ if_entry: T_IF expr nl
if_end: end
{
if (zconf_endtoken($1, T_IF, T_ENDIF)) {
if (zconf_endtoken($1, "if")) {
menu_end_menu();
printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
}
};
if_stmt: if_entry if_block if_end
if_stmt: if_entry stmt_list if_end
;
if_block:
/* empty */
| if_block common_stmt
| if_block menu_stmt
| if_block choice_stmt
;
/* mainmenu entry */
mainmenu_stmt: T_MAINMENU prompt nl
{
menu_add_prompt(P_MENU, $2, NULL);
};
/* menu entry */
menu: T_MENU prompt T_EOL
@@ -360,33 +341,33 @@ menu: T_MENU prompt T_EOL
printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
};
menu_entry: menu visibility_list depends_list
menu_entry: menu menu_option_list
{
$$ = menu_add_menu();
};
menu_end: end
{
if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
if (zconf_endtoken($1, "menu")) {
menu_end_menu();
printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
}
};
menu_stmt: menu_entry menu_block menu_end
menu_stmt: menu_entry stmt_list menu_end
;
menu_block:
menu_option_list:
/* empty */
| menu_block common_stmt
| menu_block menu_stmt
| menu_block choice_stmt
| menu_option_list visible
| menu_option_list depends
;
source_stmt: T_SOURCE prompt T_EOL
{
printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
zconf_nextfile($2);
free($2);
};
/* comment entry */
@@ -398,10 +379,13 @@ comment: T_COMMENT prompt T_EOL
printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
};
comment_stmt: comment depends_list
{
menu_end_entry();
};
comment_stmt: comment comment_option_list
;
comment_option_list:
/* empty */
| comment_option_list depends
;
/* help option */
@@ -413,18 +397,22 @@ help_start: T_HELP T_EOL
help: help_start T_HELPTEXT
{
if (current_entry->help) {
free(current_entry->help);
zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
current_entry->sym->name ?: "<choice>");
}
/* Is the help text empty or all whitespace? */
if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
zconfprint("warning: '%s' defined with blank help text",
current_entry->sym->name ?: "<choice>");
current_entry->help = $2;
};
/* depends option */
depends_list:
/* empty */
| depends_list depends
| depends_list T_EOL
| depends_list option_error
;
depends: T_DEPENDS T_ON expr T_EOL
{
menu_add_dep($3);
@@ -432,14 +420,7 @@ depends: T_DEPENDS T_ON expr T_EOL
};
/* visibility option */
visibility_list:
/* empty */
| visibility_list visible
| visibility_list T_EOL
;
visible: T_VISIBLE if_expr
visible: T_VISIBLE if_expr T_EOL
{
menu_add_visibility($2);
};
@@ -457,14 +438,9 @@ prompt: T_WORD
| T_WORD_QUOTE
;
end: T_ENDMENU T_EOL { $$ = $1; }
| T_ENDCHOICE T_EOL { $$ = $1; }
| T_ENDIF T_EOL { $$ = $1; }
;
nl:
T_EOL
| nl T_EOL
end: T_ENDMENU T_EOL { $$ = "menu"; }
| T_ENDCHOICE T_EOL { $$ = "choice"; }
| T_ENDIF T_EOL { $$ = "if"; }
;
if_expr: /* empty */ { $$ = NULL; }
@@ -484,13 +460,31 @@ expr: symbol { $$ = expr_alloc_symbol($1); }
| expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
;
symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }
/* For symbol definitions, selects, etc., where quotes are not accepted */
nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
symbol: nonconst_symbol
| T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
;
word_opt: /* empty */ { $$ = NULL; }
| T_WORD
/* assignment statement */
assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
assign_op:
T_EQUAL { $$ = VAR_RECURSIVE; }
| T_COLON_EQUAL { $$ = VAR_SIMPLE; }
| T_PLUS_EQUAL { $$ = VAR_APPEND; }
;
assign_val:
/* empty */ { $$ = xstrdup(""); };
| T_ASSIGN_VAL
;
%%
void conf_parse(const char *name)
@@ -500,61 +494,51 @@ void conf_parse(const char *name)
zconf_initscan(name);
sym_init();
_menu_init();
rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
if (getenv("ZCONF_DEBUG"))
zconfdebug = 1;
zconfparse();
if (zconfnerrs)
yydebug = 1;
yyparse();
/* Variables are expanded in the parse phase. We can free them here. */
variable_all_del();
if (yynerrs)
exit(1);
if (!modules_sym)
modules_sym = sym_find( "n" );
rootmenu.prompt->text = rootmenu.prompt->text;
rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
if (!menu_has_prompt(&rootmenu)) {
current_entry = &rootmenu;
menu_add_prompt(P_MENU, "Main menu", NULL);
}
menu_finalize(&rootmenu);
for_all_symbols(i, sym) {
if (sym_check_deps(sym))
zconfnerrs++;
yynerrs++;
}
if (zconfnerrs)
if (yynerrs)
exit(1);
sym_set_change_count(1);
}
static const char *zconf_tokenname(int token)
static bool zconf_endtoken(const char *tokenname,
const char *expected_tokenname)
{
switch (token) {
case T_MENU: return "menu";
case T_ENDMENU: return "endmenu";
case T_CHOICE: return "choice";
case T_ENDCHOICE: return "endchoice";
case T_IF: return "if";
case T_ENDIF: return "endif";
case T_DEPENDS: return "depends";
case T_VISIBLE: return "visible";
}
return "<token>";
}
static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
{
if (id->token != endtoken) {
if (strcmp(tokenname, expected_tokenname)) {
zconf_error("unexpected '%s' within %s block",
kconf_id_strings + id->name, zconf_tokenname(starttoken));
zconfnerrs++;
tokenname, expected_tokenname);
yynerrs++;
return false;
}
if (current_menu->file != current_file) {
zconf_error("'%s' in different file than '%s'",
kconf_id_strings + id->name, zconf_tokenname(starttoken));
tokenname, expected_tokenname);
fprintf(stderr, "%s:%d: location of the '%s'\n",
current_menu->file->name, current_menu->lineno,
zconf_tokenname(starttoken));
zconfnerrs++;
expected_tokenname);
yynerrs++;
return false;
}
return true;
@@ -575,7 +559,7 @@ static void zconf_error(const char *err, ...)
{
va_list ap;
zconfnerrs++;
yynerrs++;
fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
va_start(ap, err);
vfprintf(stderr, err, ap);
@@ -583,7 +567,7 @@ static void zconf_error(const char *err, ...)
fprintf(stderr, "\n");
}
static void zconferror(const char *err)
static void yyerror(const char *err)
{
fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
}
@@ -616,7 +600,7 @@ static void print_symbol(FILE *out, struct menu *menu)
fprintf(out, "\nconfig %s\n", sym->name);
switch (sym->type) {
case S_BOOLEAN:
fputs(" boolean\n", out);
fputs(" bool\n", out);
break;
case S_TRISTATE:
fputs(" tristate\n", out);
@@ -664,6 +648,11 @@ static void print_symbol(FILE *out, struct menu *menu)
expr_fprint(prop->expr, out);
fputc('\n', out);
break;
case P_IMPLY:
fputs( " imply ", out);
expr_fprint(prop->expr, out);
fputc('\n', out);
break;
case P_RANGE:
fputs( " range ", out);
expr_fprint(prop->expr, out);
@@ -674,6 +663,10 @@ static void print_symbol(FILE *out, struct menu *menu)
print_quoted_string(out, prop->text);
fputc('\n', out);
break;
case P_SYMBOL:
fputs( " symbol ", out);
fprintf(out, "%s\n", prop->sym->name);
break;
default:
fprintf(out, " unknown prop %d!\n", prop->type);
break;
@@ -734,9 +727,5 @@ void zconfdump(FILE *out)
}
}
#include "zconf.lex.c"
#include "util.c"
#include "confdata.c"
#include "expr.c"
#include "symbol.c"
#include "menu.c"
xen/tools/kconfig/preprocess.c
+574
View File
@@ -0,0 +1,574 @@
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2018 Masahiro Yamada <yamada.masahiro@socionext.com>
#include <ctype.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "list.h"
#include "lkc.h"
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
static char *expand_string_with_args(const char *in, int argc, char *argv[]);
static char *expand_string(const char *in);
static void __attribute__((noreturn)) pperror(const char *format, ...)
{
va_list ap;
fprintf(stderr, "%s:%d: ", current_file->name, yylineno);
va_start(ap, format);
vfprintf(stderr, format, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
/*
* Environment variables
*/
static LIST_HEAD(env_list);
struct env {
char *name;
char *value;
struct list_head node;
};
static void env_add(const char *name, const char *value)
{
struct env *e;
e = xmalloc(sizeof(*e));
e->name = xstrdup(name);
e->value = xstrdup(value);
list_add_tail(&e->node, &env_list);
}
static void env_del(struct env *e)
{
list_del(&e->node);
free(e->name);
free(e->value);
free(e);
}
/* The returned pointer must be freed when done */
static char *env_expand(const char *name)
{
struct env *e;
const char *value;
if (!*name)
return NULL;
list_for_each_entry(e, &env_list, node) {
if (!strcmp(name, e->name))
return xstrdup(e->value);
}
value = getenv(name);
if (!value)
return NULL;
/*
* We need to remember all referenced environment variables.
* They will be written out to include/config/auto.conf.cmd
*/
env_add(name, value);
return xstrdup(value);
}
void env_write_dep(FILE *f, const char *autoconfig_name)
{
struct env *e, *tmp;
list_for_each_entry_safe(e, tmp, &env_list, node) {
fprintf(f, "ifneq \"$(%s)\" \"%s\"\n", e->name, e->value);
fprintf(f, "%s: FORCE\n", autoconfig_name);
fprintf(f, "endif\n");
env_del(e);
}
}
/*
* Built-in functions
*/
struct function {
const char *name;
unsigned int min_args;
unsigned int max_args;
char *(*func)(int argc, char *argv[]);
};
static char *do_error_if(int argc, char *argv[])
{
if (!strcmp(argv[0], "y"))
pperror("%s", argv[1]);
return NULL;
}
static char *do_filename(int argc, char *argv[])
{
return xstrdup(current_file->name);
}
static char *do_info(int argc, char *argv[])
{
printf("%s\n", argv[0]);
return xstrdup("");
}
static char *do_lineno(int argc, char *argv[])
{
char buf[16];
sprintf(buf, "%d", yylineno);
return xstrdup(buf);
}
static char *do_shell(int argc, char *argv[])
{
FILE *p;
char buf[256];
char *cmd;
size_t nread;
int i;
cmd = argv[0];
p = popen(cmd, "r");
if (!p) {
perror(cmd);
exit(1);
}
nread = fread(buf, 1, sizeof(buf), p);
if (nread == sizeof(buf))
nread--;
/* remove trailing new lines */
while (nread > 0 && buf[nread - 1] == '\n')
nread--;
buf[nread] = 0;
/* replace a new line with a space */
for (i = 0; i < nread; i++) {
if (buf[i] == '\n')
buf[i] = ' ';
}
if (pclose(p) == -1) {
perror(cmd);
exit(1);
}
return xstrdup(buf);
}
static char *do_warning_if(int argc, char *argv[])
{
if (!strcmp(argv[0], "y"))
fprintf(stderr, "%s:%d: %s\n",
current_file->name, yylineno, argv[1]);
return xstrdup("");
}
static const struct function function_table[] = {
/* Name MIN MAX Function */
{ "error-if", 2, 2, do_error_if },
{ "filename", 0, 0, do_filename },
{ "info", 1, 1, do_info },
{ "lineno", 0, 0, do_lineno },
{ "shell", 1, 1, do_shell },
{ "warning-if", 2, 2, do_warning_if },
};
#define FUNCTION_MAX_ARGS 16
static char *function_expand(const char *name, int argc, char *argv[])
{
const struct function *f;
int i;
for (i = 0; i < ARRAY_SIZE(function_table); i++) {
f = &function_table[i];
if (strcmp(f->name, name))
continue;
if (argc < f->min_args)
pperror("too few function arguments passed to '%s'",
name);
if (argc > f->max_args)
pperror("too many function arguments passed to '%s'",
name);
return f->func(argc, argv);
}
return NULL;
}
/*
* Variables (and user-defined functions)
*/
static LIST_HEAD(variable_list);
struct variable {
char *name;
char *value;
enum variable_flavor flavor;
int exp_count;
struct list_head node;
};
static struct variable *variable_lookup(const char *name)
{
struct variable *v;
list_for_each_entry(v, &variable_list, node) {
if (!strcmp(name, v->name))
return v;
}
return NULL;
}
static char *variable_expand(const char *name, int argc, char *argv[])
{
struct variable *v;
char *res;
v = variable_lookup(name);
if (!v)
return NULL;
if (argc == 0 && v->exp_count)
pperror("Recursive variable '%s' references itself (eventually)",
name);
if (v->exp_count > 1000)
pperror("Too deep recursive expansion");
v->exp_count++;
if (v->flavor == VAR_RECURSIVE)
res = expand_string_with_args(v->value, argc, argv);
else
res = xstrdup(v->value);
v->exp_count--;
return res;
}
void variable_add(const char *name, const char *value,
enum variable_flavor flavor)
{
struct variable *v;
char *new_value;
bool append = false;
v = variable_lookup(name);
if (v) {
/* For defined variables, += inherits the existing flavor */
if (flavor == VAR_APPEND) {
flavor = v->flavor;
append = true;
} else {
free(v->value);
}
} else {
/* For undefined variables, += assumes the recursive flavor */
if (flavor == VAR_APPEND)
flavor = VAR_RECURSIVE;
v = xmalloc(sizeof(*v));
v->name = xstrdup(name);
v->exp_count = 0;
list_add_tail(&v->node, &variable_list);
}
v->flavor = flavor;
if (flavor == VAR_SIMPLE)
new_value = expand_string(value);
else
new_value = xstrdup(value);
if (append) {
v->value = xrealloc(v->value,
strlen(v->value) + strlen(new_value) + 2);
strcat(v->value, " ");
strcat(v->value, new_value);
free(new_value);
} else {
v->value = new_value;
}
}
static void variable_del(struct variable *v)
{
list_del(&v->node);
free(v->name);
free(v->value);
free(v);
}
void variable_all_del(void)
{
struct variable *v, *tmp;
list_for_each_entry_safe(v, tmp, &variable_list, node)
variable_del(v);
}
/*
* Evaluate a clause with arguments. argc/argv are arguments from the upper
* function call.
*
* Returned string must be freed when done
*/
static char *eval_clause(const char *str, size_t len, int argc, char *argv[])
{
char *tmp, *name, *res, *endptr, *prev, *p;
int new_argc = 0;
char *new_argv[FUNCTION_MAX_ARGS];
int nest = 0;
int i;
unsigned long n;
tmp = xstrndup(str, len);
/*
* If variable name is '1', '2', etc. It is generally an argument
* from a user-function call (i.e. local-scope variable). If not
* available, then look-up global-scope variables.
*/
n = strtoul(tmp, &endptr, 10);
if (!*endptr && n > 0 && n <= argc) {
res = xstrdup(argv[n - 1]);
goto free_tmp;
}
prev = p = tmp;
/*
* Split into tokens
* The function name and arguments are separated by a comma.
* For example, if the function call is like this:
* $(foo,$(x),$(y))
*
* The input string for this helper should be:
* foo,$(x),$(y)
*
* and split into:
* new_argv[0] = 'foo'
* new_argv[1] = '$(x)'
* new_argv[2] = '$(y)'
*/
while (*p) {
if (nest == 0 && *p == ',') {
*p = 0;
if (new_argc >= FUNCTION_MAX_ARGS)
pperror("too many function arguments");
new_argv[new_argc++] = prev;
prev = p + 1;
} else if (*p == '(') {
nest++;
} else if (*p == ')') {
nest--;
}
p++;
}
new_argv[new_argc++] = prev;
/*
* Shift arguments
* new_argv[0] represents a function name or a variable name. Put it
* into 'name', then shift the rest of the arguments. This simplifies
* 'const' handling.
*/
name = expand_string_with_args(new_argv[0], argc, argv);
new_argc--;
for (i = 0; i < new_argc; i++)
new_argv[i] = expand_string_with_args(new_argv[i + 1],
argc, argv);
/* Search for variables */
res = variable_expand(name, new_argc, new_argv);
if (res)
goto free;
/* Look for built-in functions */
res = function_expand(name, new_argc, new_argv);
if (res)
goto free;
/* Last, try environment variable */
if (new_argc == 0) {
res = env_expand(name);
if (res)
goto free;
}
res = xstrdup("");
free:
for (i = 0; i < new_argc; i++)
free(new_argv[i]);
free(name);
free_tmp:
free(tmp);
return res;
}
/*
* Expand a string that follows '$'
*
* For example, if the input string is
* ($(FOO)$($(BAR)))$(BAZ)
* this helper evaluates
* $($(FOO)$($(BAR)))
* and returns a new string containing the expansion (note that the string is
* recursively expanded), also advancing 'str' to point to the next character
* after the corresponding closing parenthesis, in this case, *str will be
* $(BAR)
*/
static char *expand_dollar_with_args(const char **str, int argc, char *argv[])
{
const char *p = *str;
const char *q;
int nest = 0;
/*
* In Kconfig, variable/function references always start with "$(".
* Neither single-letter variables as in $A nor curly braces as in ${CC}
* are supported. '$' not followed by '(' loses its special meaning.
*/
if (*p != '(') {
*str = p;
return xstrdup("$");
}
p++;
q = p;
while (*q) {
if (*q == '(') {
nest++;
} else if (*q == ')') {
if (nest-- == 0)
break;
}
q++;
}
if (!*q)
pperror("unterminated reference to '%s': missing ')'", p);
/* Advance 'str' to after the expanded initial portion of the string */
*str = q + 1;
return eval_clause(p, q - p, argc, argv);
}
char *expand_dollar(const char **str)
{
return expand_dollar_with_args(str, 0, NULL);
}
static char *__expand_string(const char **str, bool (*is_end)(char c),
int argc, char *argv[])
{
const char *in, *p;
char *expansion, *out;
size_t in_len, out_len;
out = xmalloc(1);
*out = 0;
out_len = 1;
p = in = *str;
while (1) {
if (*p == '$') {
in_len = p - in;
p++;
expansion = expand_dollar_with_args(&p, argc, argv);
out_len += in_len + strlen(expansion);
out = xrealloc(out, out_len);
strncat(out, in, in_len);
strcat(out, expansion);
free(expansion);
in = p;
continue;
}
if (is_end(*p))
break;
p++;
}
in_len = p - in;
out_len += in_len;
out = xrealloc(out, out_len);
strncat(out, in, in_len);
/* Advance 'str' to the end character */
*str = p;
return out;
}
static bool is_end_of_str(char c)
{
return !c;
}
/*
* Expand variables and functions in the given string. Undefined variables
* expand to an empty string.
* The returned string must be freed when done.
*/
static char *expand_string_with_args(const char *in, int argc, char *argv[])
{
return __expand_string(&in, is_end_of_str, argc, argv);
}
static char *expand_string(const char *in)
{
return expand_string_with_args(in, 0, NULL);
}
static bool is_end_of_token(char c)
{
return !(isalnum(c) || c == '_' || c == '-');
}
/*
* Expand variables in a token. The parsing stops when a token separater
* (in most cases, it is a whitespace) is encountered. 'str' is updated to
* point to the next character.
*
* The returned string must be freed when done.
*/
char *expand_one_token(const char **str)
{
return __expand_string(str, is_end_of_token, 0, NULL);
}
xen/tools/kconfig/qconf-cfg.sh
Executable
+32
View File
@@ -0,0 +1,32 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
PKG="Qt5Core Qt5Gui Qt5Widgets"
PKG2="QtCore QtGui"
if [ -z "$(command -v pkg-config)" ]; then
echo >&2 "*"
echo >&2 "* 'make xconfig' requires 'pkg-config'. Please install it."
echo >&2 "*"
exit 1
fi
if pkg-config --exists $PKG; then
echo cflags=\"-std=c++11 -fPIC $(pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets)\"
echo libs=\"$(pkg-config --libs $PKG)\"
echo moc=\"$(pkg-config --variable=host_bins Qt5Core)/moc\"
exit 0
fi
if pkg-config --exists $PKG2; then
echo cflags=\"$(pkg-config --cflags $PKG2)\"
echo libs=\"$(pkg-config --libs $PKG2)\"
echo moc=\"$(pkg-config --variable=moc_location QtCore)\"
exit 0
fi
echo >&2 "*"
echo >&2 "* Could not find Qt via pkg-config."
echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"
echo >&2 "*"
exit 1
xen/tools/kconfig/qconf.cc
+423 -313
View File
File diff suppressed because it is too large. Load diff
xen/tools/kconfig/qconf.h
+71 -78
View File
@@ -1,28 +1,20 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#if QT_VERSION < 0x040000
#include <qlistview.h>
#else
#include <q3listview.h>
#endif
#include <QTextBrowser>
#include <QTreeWidget>
#include <QMainWindow>
#include <QHeaderView>
#include <qsettings.h>
#if QT_VERSION < 0x040000
#define Q3ValueList QValueList
#define Q3PopupMenu QPopupMenu
#define Q3ListView QListView
#define Q3ListViewItem QListViewItem
#define Q3VBox QVBox
#define Q3TextBrowser QTextBrowser
#define Q3MainWindow QMainWindow
#define Q3Action QAction
#define Q3ToolBar QToolBar
#define Q3ListViewItemIterator QListViewItemIterator
#define Q3FileDialog QFileDialog
#endif
#include <QPushButton>
#include <QSettings>
#include <QLineEdit>
#include <QSplitter>
#include <QCheckBox>
#include <QDialog>
#include "expr.h"
class ConfigView;
class ConfigList;
@@ -33,8 +25,8 @@ class ConfigMainWindow;
class ConfigSettings : public QSettings {
public:
ConfigSettings();
Q3ValueList<int> readSizes(const QString& key, bool *ok);
bool writeSizes(const QString& key, const Q3ValueList<int>& value);
QList<int> readSizes(const QString& key, bool *ok);
bool writeSizes(const QString& key, const QList<int>& value);
};
enum colIdx {
@@ -47,9 +39,9 @@ enum optionMode {
normalOpt = 0, allOpt, promptOpt
};
class ConfigList : public Q3ListView {
class ConfigList : public QTreeWidget {
Q_OBJECT
typedef class Q3ListView Parent;
typedef class QTreeWidget Parent;
public:
ConfigList(ConfigView* p, const char *name = 0);
void reinit(void);
@@ -61,10 +53,10 @@ public:
protected:
void keyPressEvent(QKeyEvent *e);
void contentsMousePressEvent(QMouseEvent *e);
void contentsMouseReleaseEvent(QMouseEvent *e);
void contentsMouseMoveEvent(QMouseEvent *e);
void contentsMouseDoubleClickEvent(QMouseEvent *e);
void mousePressEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseDoubleClickEvent(QMouseEvent *e);
void focusInEvent(QFocusEvent *e);
void contextMenuEvent(QContextMenuEvent *e);
@@ -95,32 +87,23 @@ public:
}
ConfigItem* firstChild() const
{
return (ConfigItem *)Parent::firstChild();
return (ConfigItem *)children().first();
}
int mapIdx(colIdx idx)
void addColumn(colIdx idx)
{
return colMap[idx];
}
void addColumn(colIdx idx, const QString& label)
{
colMap[idx] = Parent::addColumn(label);
colRevMap[colMap[idx]] = idx;
showColumn(idx);
}
void removeColumn(colIdx idx)
{
int col = colMap[idx];
if (col >= 0) {
Parent::removeColumn(col);
colRevMap[col] = colMap[idx] = -1;
}
hideColumn(idx);
}
void setAllOpen(bool open);
void setParentMenu(void);
bool menuSkip(struct menu *);
template <class P>
void updateMenuList(P*, struct menu*);
void updateMenuList(ConfigItem *parent, struct menu*);
void updateMenuList(ConfigList *parent, struct menu*);
bool updateAll;
@@ -132,30 +115,26 @@ public:
enum listMode mode;
enum optionMode optMode;
struct menu *rootEntry;
QColorGroup disabledColorGroup;
QColorGroup inactivedColorGroup;
Q3PopupMenu* headerPopup;
private:
int colMap[colNr];
int colRevMap[colNr];
QPalette disabledColorGroup;
QPalette inactivedColorGroup;
QMenu* headerPopup;
};
class ConfigItem : public Q3ListViewItem {
typedef class Q3ListViewItem Parent;
class ConfigItem : public QTreeWidgetItem {
typedef class QTreeWidgetItem Parent;
public:
ConfigItem(Q3ListView *parent, ConfigItem *after, struct menu *m, bool v)
: Parent(parent, after), menu(m), visible(v), goParent(false)
ConfigItem(ConfigList *parent, ConfigItem *after, struct menu *m, bool v)
: Parent(parent, after), nextItem(0), menu(m), visible(v), goParent(false)
{
init();
}
ConfigItem(ConfigItem *parent, ConfigItem *after, struct menu *m, bool v)
: Parent(parent, after), menu(m), visible(v), goParent(false)
: Parent(parent, after), nextItem(0), menu(m), visible(v), goParent(false)
{
init();
}
ConfigItem(Q3ListView *parent, ConfigItem *after, bool v)
: Parent(parent, after), menu(0), visible(v), goParent(true)
ConfigItem(ConfigList *parent, ConfigItem *after, bool v)
: Parent(parent, after), nextItem(0), menu(0), visible(v), goParent(true)
{
init();
}
@@ -166,33 +145,43 @@ public:
void testUpdateMenu(bool v);
ConfigList* listView() const
{
return (ConfigList*)Parent::listView();
return (ConfigList*)Parent::treeWidget();
}
ConfigItem* firstChild() const
{
return (ConfigItem *)Parent::firstChild();
return (ConfigItem *)Parent::child(0);
}
ConfigItem* nextSibling() const
ConfigItem* nextSibling()
{
return (ConfigItem *)Parent::nextSibling();
ConfigItem *ret = NULL;
ConfigItem *_parent = (ConfigItem *)parent();
if(_parent) {
ret = (ConfigItem *)_parent->child(_parent->indexOfChild(this)+1);
} else {
QTreeWidget *_treeWidget = treeWidget();
ret = (ConfigItem *)_treeWidget->topLevelItem(_treeWidget->indexOfTopLevelItem(this)+1);
}
return ret;
}
void setText(colIdx idx, const QString& text)
{
Parent::setText(listView()->mapIdx(idx), text);
Parent::setText(idx, text);
}
QString text(colIdx idx) const
{
return Parent::text(listView()->mapIdx(idx));
return Parent::text(idx);
}
void setPixmap(colIdx idx, const QPixmap& pm)
void setPixmap(colIdx idx, const QIcon &icon)
{
Parent::setPixmap(listView()->mapIdx(idx), pm);
Parent::setIcon(idx, icon);
}
const QPixmap* pixmap(colIdx idx) const
const QIcon pixmap(colIdx idx) const
{
return Parent::pixmap(listView()->mapIdx(idx));
return icon(idx);
}
void paintCell(QPainter* p, const QColorGroup& cg, int column, int width, int align);
// TODO: Implement paintCell
ConfigItem* nextItem;
struct menu *menu;
@@ -216,9 +205,9 @@ public:
ConfigItem *item;
};
class ConfigView : public Q3VBox {
class ConfigView : public QWidget {
Q_OBJECT
typedef class Q3VBox Parent;
typedef class QWidget Parent;
public:
ConfigView(QWidget* parent, const char *name = 0);
~ConfigView(void);
@@ -249,9 +238,9 @@ public:
static QAction *showPromptAction;
};
class ConfigInfoView : public Q3TextBrowser {
class ConfigInfoView : public QTextBrowser {
Q_OBJECT
typedef class Q3TextBrowser Parent;
typedef class QTextBrowser Parent;
public:
ConfigInfoView(QWidget* parent, const char *name = 0);
bool showDebug(void) const { return _showDebug; }
@@ -271,8 +260,8 @@ protected:
QString debug_info(struct symbol *sym);
static QString print_filter(const QString &str);
static void expr_print_help(void *data, struct symbol *sym, const char *str);
Q3PopupMenu* createPopupMenu(const QPoint& pos);
void contentsContextMenuEvent(QContextMenuEvent *e);
QMenu *createStandardContextMenu(const QPoint & pos);
void contextMenuEvent(QContextMenuEvent *e);
struct symbol *sym;
struct menu *_menu;
@@ -299,10 +288,11 @@ protected:
struct symbol **result;
};
class ConfigMainWindow : public Q3MainWindow {
class ConfigMainWindow : public QMainWindow {
Q_OBJECT
static Q3Action *saveAction;
char *configname;
static QAction *saveAction;
static void conf_changed(void);
public:
ConfigMainWindow(void);
@@ -331,8 +321,11 @@ protected:
ConfigView *configView;
ConfigList *configList;
ConfigInfoView *helpText;
Q3ToolBar *toolBar;
Q3Action *backAction;
QToolBar *toolBar;
QAction *backAction;
QAction *singleViewAction;
QAction *splitViewAction;
QAction *fullViewAction;
QSplitter *split1;
QSplitter *split2;
};
xen/tools/kconfig/streamline_config.pl
+44 -9
View File
@@ -1,7 +1,7 @@
#!/usr/bin/perl -w
#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
#
# Copyright 2005-2009 - Steven Rostedt
# Licensed under the terms of the GNU GPL License version 2
#
# It's simple enough to figure out how this works.
# If not, then you can ask me at stripconfig@goodmis.org
@@ -42,6 +42,7 @@
# mv config_strip .config
# make oldconfig
#
use warnings;
use strict;
use Getopt::Long;
@@ -164,10 +165,10 @@ sub read_kconfig {
my $last_source = "";
# Check for any environment variables used
while ($source =~ /\$(\w+)/ && $last_source ne $source) {
while ($source =~ /\$\((\w+)\)/ && $last_source ne $source) {
my $env = $1;
$last_source = $source;
$source =~ s/\$$env/$ENV{$env}/;
$source =~ s/\$\($env\)/$ENV{$env}/;
}
open(my $kinfile, '<', $source) || die "Can't open $kconfig";
@@ -188,7 +189,7 @@ sub read_kconfig {
$cont = 0;
# collect any Kconfig sources
if (/^source\s*"(.*)"/) {
if (/^source\s+"?([^"]+)/) {
my $kconfig = $1;
# prevent reading twice.
if (!defined($read_kconfigs{$kconfig})) {
@@ -237,7 +238,7 @@ sub read_kconfig {
}
# configs without prompts must be selected
} elsif ($state ne "NONE" && /^\s*tristate\s\S/) {
} elsif ($state ne "NONE" && /^\s*(tristate\s+\S|prompt\b)/) {
# note if the config has a prompt
$prompts{$config} = 1;
@@ -256,8 +257,8 @@ sub read_kconfig {
$iflevel-- if ($iflevel);
# stop on "help"
} elsif (/^\s*help\s*$/) {
# stop on "help" and keywords that end a menu entry
} elsif (/^\s*(---)?help(---)?\s*$/ || /^(comment|choice|menu)\b/) {
$state = "NONE";
}
}
@@ -454,7 +455,7 @@ sub parse_config_depends
$p =~ s/^[^$valid]*[$valid]+//;
# We only need to process if the depend config is a module
if (!defined($orig_configs{$conf}) || !$orig_configs{conf} eq "m") {
if (!defined($orig_configs{$conf}) || $orig_configs{$conf} eq "y") {
next;
}
@@ -610,6 +611,40 @@ foreach my $line (@config_file) {
next;
}
if (/CONFIG_MODULE_SIG_KEY="(.+)"/) {
my $orig_cert = $1;
my $default_cert = "certs/signing_key.pem";
# Check that the logic in this script still matches the one in Kconfig
if (!defined($depends{"MODULE_SIG_KEY"}) ||
$depends{"MODULE_SIG_KEY"} !~ /"\Q$default_cert\E"/) {
print STDERR "WARNING: MODULE_SIG_KEY assertion failure, ",
"update needed to ", __FILE__, " line ", __LINE__, "\n";
print;
} elsif ($orig_cert ne $default_cert && ! -f $orig_cert) {
print STDERR "Module signature verification enabled but ",
"module signing key \"$orig_cert\" not found. Resetting ",
"signing key to default value.\n";
print "CONFIG_MODULE_SIG_KEY=\"$default_cert\"\n";
} else {
print;
}
next;
}
if (/CONFIG_SYSTEM_TRUSTED_KEYS="(.+)"/) {
my $orig_keys = $1;
if (! -f $orig_keys) {
print STDERR "System keyring enabled but keys \"$orig_keys\" ",
"not found. Resetting keys to default value.\n";
print "CONFIG_SYSTEM_TRUSTED_KEYS=\"\"\n";
} else {
print;
}
next;
}
if (/^(CONFIG.*)=(m|y)/) {
if (defined($configs{$1})) {
if ($localyesconfig) {
xen/tools/kconfig/symbol.c
+123 -168
View File
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#include <ctype.h>
@@ -33,33 +33,6 @@ struct symbol *sym_defconfig_list;
struct symbol *modules_sym;
tristate modules_val;
struct expr *sym_env_list;
static void sym_add_default(struct symbol *sym, const char *def)
{
struct property *prop = prop_alloc(P_DEFAULT, sym);
prop->expr = expr_alloc_symbol(sym_lookup(def, SYMBOL_CONST));
}
void sym_init(void)
{
struct symbol *sym;
struct utsname uts;
static bool inited = false;
if (inited)
return;
inited = true;
uname(&uts);
sym = sym_lookup("UNAME_RELEASE", 0);
sym->type = S_STRING;
sym->flags |= SYMBOL_AUTO;
sym_add_default(sym, uts.release);
}
enum symbol_type sym_get_type(struct symbol *sym)
{
enum symbol_type type = sym->type;
@@ -77,7 +50,7 @@ const char *sym_type_name(enum symbol_type type)
{
switch (type) {
case S_BOOLEAN:
return "boolean";
return "bool";
case S_TRISTATE:
return "tristate";
case S_INT:
@@ -88,8 +61,6 @@ const char *sym_type_name(enum symbol_type type)
return "string";
case S_UNKNOWN:
return "unknown";
case S_OTHER:
break;
}
return "???";
}
@@ -103,15 +74,6 @@ struct property *sym_get_choice_prop(struct symbol *sym)
return NULL;
}
struct property *sym_get_env_prop(struct symbol *sym)
{
struct property *prop;
for_all_properties(sym, prop, P_ENV)
return prop;
return NULL;
}
static struct property *sym_get_default_prop(struct symbol *sym)
{
struct property *prop;
@@ -124,7 +86,7 @@ static struct property *sym_get_default_prop(struct symbol *sym)
return NULL;
}
static struct property *sym_get_range_prop(struct symbol *sym)
struct property *sym_get_range_prop(struct symbol *sym)
{
struct property *prop;
@@ -183,7 +145,7 @@ static void sym_validate_range(struct symbol *sym)
sprintf(str, "%lld", val2);
else
sprintf(str, "0x%llx", val2);
sym->curr.val = strdup(str);
sym->curr.val = xstrdup(str);
}
static void sym_set_changed(struct symbol *sym)
@@ -209,12 +171,26 @@ static void sym_set_all_changed(void)
static void sym_calc_visibility(struct symbol *sym)
{
struct property *prop;
struct symbol *choice_sym = NULL;
tristate tri;
/* any prompt visible? */
tri = no;
if (sym_is_choice_value(sym))
choice_sym = prop_get_symbol(sym_get_choice_prop(sym));
for_all_prompts(sym, prop) {
prop->visible.tri = expr_calc_value(prop->visible.expr);
/*
* Tristate choice_values with visibility 'mod' are
* not visible if the corresponding choice's value is
* 'yes'.
*/
if (choice_sym && sym->type == S_TRISTATE &&
prop->visible.tri == mod && choice_sym->curr.tri == yes)
prop->visible.tri = no;
tri = EXPR_OR(tri, prop->visible.tri);
}
if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
@@ -229,7 +205,7 @@ static void sym_calc_visibility(struct symbol *sym)
tri = yes;
if (sym->dir_dep.expr)
tri = expr_calc_value(sym->dir_dep.expr);
if (tri == mod)
if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
tri = yes;
if (sym->dir_dep.tri != tri) {
sym->dir_dep.tri = tri;
@@ -244,6 +220,15 @@ static void sym_calc_visibility(struct symbol *sym)
sym->rev_dep.tri = tri;
sym_set_changed(sym);
}
tri = no;
if (sym->implied.expr && sym->dir_dep.tri != no)
tri = expr_calc_value(sym->implied.expr);
if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
tri = yes;
if (sym->implied.tri != tri) {
sym->implied.tri = tri;
sym_set_changed(sym);
}
}
/*
@@ -310,6 +295,27 @@ static struct symbol *sym_calc_choice(struct symbol *sym)
return def_sym;
}
static void sym_warn_unmet_dep(struct symbol *sym)
{
struct gstr gs = str_new();
str_printf(&gs,
"\nWARNING: unmet direct dependencies detected for %s\n",
sym->name);
str_printf(&gs,
" Depends on [%c]: ",
sym->dir_dep.tri == mod ? 'm' : 'n');
expr_gstr_print(sym->dir_dep.expr, &gs);
str_printf(&gs, "\n");
expr_gstr_print_revdep(sym->rev_dep.expr, &gs, yes,
" Selected by [y]:\n");
expr_gstr_print_revdep(sym->rev_dep.expr, &gs, mod,
" Selected by [m]:\n");
fputs(str_get(&gs), stderr);
}
void sym_calc_value(struct symbol *sym)
{
struct symbol_value newval, oldval;
@@ -348,11 +354,13 @@ void sym_calc_value(struct symbol *sym)
sym->curr.tri = no;
return;
}
if (!sym_is_choice_value(sym))
sym->flags &= ~SYMBOL_WRITE;
sym_calc_visibility(sym);
if (sym->visible != no)
sym->flags |= SYMBOL_WRITE;
/* set default if recursively called */
sym->curr = newval;
@@ -367,7 +375,6 @@ void sym_calc_value(struct symbol *sym)
/* if the symbol is visible use the user value
* if available, otherwise try the default value
*/
sym->flags |= SYMBOL_WRITE;
if (sym_has_value(sym)) {
newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
sym->visible);
@@ -379,39 +386,32 @@ void sym_calc_value(struct symbol *sym)
if (!sym_is_choice(sym)) {
prop = sym_get_default_prop(sym);
if (prop) {
sym->flags |= SYMBOL_WRITE;
newval.tri = EXPR_AND(expr_calc_value(prop->expr),
prop->visible.tri);
if (newval.tri != no)
sym->flags |= SYMBOL_WRITE;
}
if (sym->implied.tri != no) {
sym->flags |= SYMBOL_WRITE;
newval.tri = EXPR_OR(newval.tri, sym->implied.tri);
}
}
calc_newval:
if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
struct expr *e;
e = expr_simplify_unmet_dep(sym->rev_dep.expr,
sym->dir_dep.expr);
fprintf(stderr, "warning: (");
expr_fprint(e, stderr);
fprintf(stderr, ") selects %s which has unmet direct dependencies (",
sym->name);
expr_fprint(sym->dir_dep.expr, stderr);
fprintf(stderr, ")\n");
expr_free(e);
}
if (sym->dir_dep.tri < sym->rev_dep.tri)
sym_warn_unmet_dep(sym);
newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
}
if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
if (newval.tri == mod &&
(sym_get_type(sym) == S_BOOLEAN || sym->implied.tri == yes))
newval.tri = yes;
break;
case S_STRING:
case S_HEX:
case S_INT:
if (sym->visible != no) {
sym->flags |= SYMBOL_WRITE;
if (sym_has_value(sym)) {
if (sym->visible != no && sym_has_value(sym)) {
newval.val = sym->def[S_DEF_USER].val;
break;
}
}
prop = sym_get_default_prop(sym);
if (prop) {
struct symbol *ds = prop_get_symbol(prop);
@@ -452,7 +452,7 @@ void sym_calc_value(struct symbol *sym)
}
}
if (sym->flags & SYMBOL_AUTO)
if (sym->flags & SYMBOL_NO_WRITE)
sym->flags &= ~SYMBOL_WRITE;
if (sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES)
@@ -484,6 +484,8 @@ bool sym_tristate_within_range(struct symbol *sym, tristate val)
return false;
if (sym->visible <= sym->rev_dep.tri)
return false;
if (sym->implied.tri == yes && val == mod)
return false;
if (sym_is_choice_value(sym) && sym->visible == yes)
return val == yes;
return val >= sym->rev_dep.tri && val <= sym->visible;
@@ -736,6 +738,10 @@ const char *sym_get_string_default(struct symbol *sym)
if (sym->type == S_BOOLEAN && val == mod)
val = yes;
/* adjust the default value if this symbol is implied by another */
if (val < sym->implied.tri)
val = sym->implied.tri;
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
@@ -749,7 +755,6 @@ const char *sym_get_string_default(struct symbol *sym)
return str;
case S_STRING:
return str;
case S_OTHER:
case S_UNKNOWN:
break;
}
@@ -780,7 +785,7 @@ const char *sym_get_string_value(struct symbol *sym)
return (const char *)sym->curr.val;
}
bool sym_is_changable(struct symbol *sym)
bool sym_is_changeable(struct symbol *sym)
{
return sym->visible > sym->rev_dep.tri;
}
@@ -817,7 +822,7 @@ struct symbol *sym_lookup(const char *name, int flags)
: !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
return symbol;
}
new_name = strdup(name);
new_name = xstrdup(name);
} else {
new_name = NULL;
hash = 0;
@@ -862,55 +867,6 @@ struct symbol *sym_find(const char *name)
return symbol;
}
/*
* Expand symbol's names embedded in the string given in argument. Symbols'
* name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
* the empty string.
*/
const char *sym_expand_string_value(const char *in)
{
const char *src;
char *res;
size_t reslen;
reslen = strlen(in) + 1;
res = xmalloc(reslen);
res[0] = '\0';
while ((src = strchr(in, '$'))) {
char *p, name[SYMBOL_MAXLENGTH];
const char *symval = "";
struct symbol *sym;
size_t newlen;
strncat(res, in, src - in);
src++;
p = name;
while (isalnum(*src) || *src == '_')
*p++ = *src++;
*p = '\0';
sym = sym_find(name);
if (sym != NULL) {
sym_calc_value(sym);
symval = sym_get_string_value(sym);
}
newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
if (newlen > reslen) {
reslen = newlen;
res = realloc(res, reslen);
}
strcat(res, symval);
in = src;
}
strcat(res, in);
return res;
}
const char *sym_escape_string_value(const char *in)
{
const char *p;
@@ -1027,7 +983,7 @@ struct symbol **sym_re_search(const char *pattern)
}
if (sym_match_arr) {
qsort(sym_match_arr, cnt, sizeof(struct sym_match), sym_rel_comp);
sym_arr = malloc((cnt+1) * sizeof(struct symbol));
sym_arr = malloc((cnt+1) * sizeof(struct symbol *));
if (!sym_arr)
goto sym_re_search_free;
for (i = 0; i < cnt; i++)
@@ -1052,7 +1008,7 @@ static struct dep_stack {
struct dep_stack *prev, *next;
struct symbol *sym;
struct property *prop;
struct expr *expr;
struct expr **expr;
} *check_top;
static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)
@@ -1116,18 +1072,8 @@ static void sym_check_print_recursive(struct symbol *last_sym)
if (stack->sym == last_sym)
fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
prop->file->name, prop->lineno);
if (stack->expr) {
fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
prop_get_type_name(prop->type),
next_sym->name ? next_sym->name : "<choice>");
} else if (stack->prop) {
fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
} else if (sym_is_choice(sym)) {
if (sym_is_choice(sym)) {
fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
menu->file->name, menu->lineno,
sym->name ? sym->name : "<choice>",
@@ -1137,14 +1083,41 @@ static void sym_check_print_recursive(struct symbol *last_sym)
menu->file->name, menu->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
} else {
} else if (stack->expr == &sym->dir_dep.expr) {
fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
} else if (stack->expr == &sym->rev_dep.expr) {
fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
} else if (stack->expr == &sym->implied.expr) {
fprintf(stderr, "%s:%d:\tsymbol %s is implied by %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
} else if (stack->expr) {
fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
prop_get_type_name(prop->type),
next_sym->name ? next_sym->name : "<choice>");
} else {
fprintf(stderr, "%s:%d:\tsymbol %s %s is visible depending on %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
prop_get_type_name(prop->type),
next_sym->name ? next_sym->name : "<choice>");
}
}
fprintf(stderr,
"For a resolution refer to Documentation/kbuild/kconfig-language.rst\n"
"subsection \"Kconfig recursive dependency limitations\"\n"
"\n");
if (check_top == &cv_stack)
dep_stack_remove();
}
@@ -1179,7 +1152,7 @@ static struct symbol *sym_check_expr_deps(struct expr *e)
default:
break;
}
printf("Oops! How to check %d?\n", e->type);
fprintf(stderr, "Oops! How to check %d?\n", e->type);
return NULL;
}
@@ -1192,12 +1165,26 @@ static struct symbol *sym_check_sym_deps(struct symbol *sym)
dep_stack_insert(&stack, sym);
stack.expr = &sym->dir_dep.expr;
sym2 = sym_check_expr_deps(sym->dir_dep.expr);
if (sym2)
goto out;
stack.expr = &sym->rev_dep.expr;
sym2 = sym_check_expr_deps(sym->rev_dep.expr);
if (sym2)
goto out;
stack.expr = &sym->implied.expr;
sym2 = sym_check_expr_deps(sym->implied.expr);
if (sym2)
goto out;
stack.expr = NULL;
for (prop = sym->prop; prop; prop = prop->next) {
if (prop->type == P_CHOICE || prop->type == P_SELECT)
if (prop->type == P_CHOICE || prop->type == P_SELECT ||
prop->type == P_IMPLY)
continue;
stack.prop = prop;
sym2 = sym_check_expr_deps(prop->visible.expr);
@@ -1205,7 +1192,7 @@ static struct symbol *sym_check_sym_deps(struct symbol *sym)
break;
if (prop->type != P_DEFAULT || sym_is_choice(sym))
continue;
stack.expr = prop->expr;
stack.expr = &prop->expr;
sym2 = sym_check_expr_deps(prop->expr);
if (sym2)
break;
@@ -1283,9 +1270,6 @@ struct symbol *sym_check_deps(struct symbol *sym)
sym->flags &= ~SYMBOL_CHECK;
}
if (sym2 && sym2 == sym)
sym2 = NULL;
return sym2;
}
@@ -1324,8 +1308,6 @@ const char *prop_get_type_name(enum prop_type type)
switch (type) {
case P_PROMPT:
return "prompt";
case P_ENV:
return "env";
case P_COMMENT:
return "comment";
case P_MENU:
@@ -1336,6 +1318,8 @@ const char *prop_get_type_name(enum prop_type type)
return "choice";
case P_SELECT:
return "select";
case P_IMPLY:
return "imply";
case P_RANGE:
return "range";
case P_SYMBOL:
@@ -1345,32 +1329,3 @@ const char *prop_get_type_name(enum prop_type type)
}
return "unknown";
}
static void prop_add_env(const char *env)
{
struct symbol *sym, *sym2;
struct property *prop;
char *p;
sym = current_entry->sym;
sym->flags |= SYMBOL_AUTO;
for_all_properties(sym, prop, P_ENV) {
sym2 = prop_get_symbol(prop);
if (strcmp(sym2->name, env))
menu_warn(current_entry, "redefining environment symbol from %s",
sym2->name);
return;
}
prop = prop_alloc(P_ENV, sym);
prop->expr = expr_alloc_symbol(sym_lookup(env, SYMBOL_CONST));
sym_env_list = expr_alloc_one(E_LIST, sym_env_list);
sym_env_list->right.sym = sym;
p = getenv(env);
if (p)
sym_add_default(sym, p);
else
menu_warn(current_entry, "environment variable %s undefined", env);
}
xen/tools/kconfig/tests/auto_submenu/Kconfig
+52
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@@ -0,0 +1,52 @@
# SPDX-License-Identifier: GPL-2.0
config A
bool "A"
default y
config A0
bool "A0"
depends on A
default y
help
This depends on A, so should be a submenu of A.
config A0_0
bool "A1_0"
depends on A0
help
Submenus are created recursively.
This should be a submenu of A0.
config A1
bool "A1"
depends on A
default y
help
This should line up with A0.
choice
prompt "choice"
depends on A1
help
Choice should become a submenu as well.
config A1_0
bool "A1_0"
config A1_1
bool "A1_1"
endchoice
config B
bool "B"
help
This is independent of A.
config C
bool "C"
depends on A
help
This depends on A, but not a consecutive item, so can/should not
be a submenu.
xen/tools/kconfig/tests/auto_submenu/__init__.py
+13
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@@ -0,0 +1,13 @@
# SPDX-License-Identifier: GPL-2.0
"""
Create submenu for symbols that depend on the preceding one.
If a symbols has dependency on the preceding symbol, the menu entry
should become the submenu of the preceding one, and displayed with
deeper indentation.
"""
def test(conf):
assert conf.oldaskconfig() == 0
assert conf.stdout_contains('expected_stdout')
xen/tools/kconfig/tests/auto_submenu/expected_stdout
+10
View File
@@ -0,0 +1,10 @@
A (A) [Y/n/?] (NEW)
A0 (A0) [Y/n/?] (NEW)
A1_0 (A0_0) [N/y/?] (NEW)
A1 (A1) [Y/n/?] (NEW)
choice
> 1. A1_0 (A1_0) (NEW)
2. A1_1 (A1_1) (NEW)
choice[1-2?]:
B (B) [N/y/?] (NEW)
C (C) [N/y/?] (NEW)
xen/tools/kconfig/tests/choice/Kconfig
+56
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@@ -0,0 +1,56 @@
# SPDX-License-Identifier: GPL-2.0
config MODULES
bool "Enable loadable module support"
option modules
default y
choice
prompt "boolean choice"
default BOOL_CHOICE1
config BOOL_CHOICE0
bool "choice 0"
config BOOL_CHOICE1
bool "choice 1"
endchoice
choice
prompt "optional boolean choice"
optional
default OPT_BOOL_CHOICE1
config OPT_BOOL_CHOICE0
bool "choice 0"
config OPT_BOOL_CHOICE1
bool "choice 1"
endchoice
choice
prompt "tristate choice"
default TRI_CHOICE1
config TRI_CHOICE0
tristate "choice 0"
config TRI_CHOICE1
tristate "choice 1"
endchoice
choice
prompt "optional tristate choice"
optional
default OPT_TRI_CHOICE1
config OPT_TRI_CHOICE0
tristate "choice 0"
config OPT_TRI_CHOICE1
tristate "choice 1"
endchoice
xen/tools/kconfig/tests/choice/__init__.py
+41
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@@ -0,0 +1,41 @@
# SPDX-License-Identifier: GPL-2.0
"""
Basic choice tests.
The handling of 'choice' is a bit complicated part in Kconfig.
The behavior of 'y' choice is intuitive. If choice values are tristate,
the choice can be 'm' where each value can be enabled independently.
Also, if a choice is marked as 'optional', the whole choice can be
invisible.
"""
def test_oldask0(conf):
assert conf.oldaskconfig() == 0
assert conf.stdout_contains('oldask0_expected_stdout')
def test_oldask1(conf):
assert conf.oldaskconfig('oldask1_config') == 0
assert conf.stdout_contains('oldask1_expected_stdout')
def test_allyes(conf):
assert conf.allyesconfig() == 0
assert conf.config_contains('allyes_expected_config')
def test_allmod(conf):
assert conf.allmodconfig() == 0
assert conf.config_contains('allmod_expected_config')
def test_allno(conf):
assert conf.allnoconfig() == 0
assert conf.config_contains('allno_expected_config')
def test_alldef(conf):
assert conf.alldefconfig() == 0
assert conf.config_contains('alldef_expected_config')
xen/tools/kconfig/tests/choice/alldef_expected_config
+5
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@@ -0,0 +1,5 @@
CONFIG_MODULES=y
# CONFIG_BOOL_CHOICE0 is not set
CONFIG_BOOL_CHOICE1=y
# CONFIG_TRI_CHOICE0 is not set
# CONFIG_TRI_CHOICE1 is not set
xen/tools/kconfig/tests/choice/allmod_expected_config
+9
View File
@@ -0,0 +1,9 @@
CONFIG_MODULES=y
# CONFIG_BOOL_CHOICE0 is not set
CONFIG_BOOL_CHOICE1=y
# CONFIG_OPT_BOOL_CHOICE0 is not set
CONFIG_OPT_BOOL_CHOICE1=y
CONFIG_TRI_CHOICE0=m
CONFIG_TRI_CHOICE1=m
CONFIG_OPT_TRI_CHOICE0=m
CONFIG_OPT_TRI_CHOICE1=m
xen/tools/kconfig/tests/choice/allno_expected_config
+5
View File
@@ -0,0 +1,5 @@
# CONFIG_MODULES is not set
# CONFIG_BOOL_CHOICE0 is not set
CONFIG_BOOL_CHOICE1=y
# CONFIG_TRI_CHOICE0 is not set
CONFIG_TRI_CHOICE1=y
xen/tools/kconfig/tests/choice/allyes_expected_config
+9
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@@ -0,0 +1,9 @@
CONFIG_MODULES=y
# CONFIG_BOOL_CHOICE0 is not set
CONFIG_BOOL_CHOICE1=y
# CONFIG_OPT_BOOL_CHOICE0 is not set
CONFIG_OPT_BOOL_CHOICE1=y
# CONFIG_TRI_CHOICE0 is not set
CONFIG_TRI_CHOICE1=y
# CONFIG_OPT_TRI_CHOICE0 is not set
CONFIG_OPT_TRI_CHOICE1=y
xen/tools/kconfig/tests/choice/oldask0_expected_stdout
+10
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@@ -0,0 +1,10 @@
Enable loadable module support (MODULES) [Y/n/?] (NEW)
boolean choice
1. choice 0 (BOOL_CHOICE0) (NEW)
> 2. choice 1 (BOOL_CHOICE1) (NEW)
choice[1-2?]:
optional boolean choice [N/y/?] (NEW)
tristate choice [M/y/?] (NEW)
choice 0 (TRI_CHOICE0) [N/m/?] (NEW)
choice 1 (TRI_CHOICE1) [N/m/?] (NEW)
optional tristate choice [N/m/y/?] (NEW)
xen/tools/kconfig/tests/choice/oldask1_config
+2
View File
@@ -0,0 +1,2 @@
# CONFIG_MODULES is not set
CONFIG_OPT_BOOL_CHOICE0=y
xen/tools/kconfig/tests/choice/oldask1_expected_stdout
+15
View File
@@ -0,0 +1,15 @@
Enable loadable module support (MODULES) [N/y/?]
boolean choice
1. choice 0 (BOOL_CHOICE0) (NEW)
> 2. choice 1 (BOOL_CHOICE1) (NEW)
choice[1-2?]:
optional boolean choice [Y/n/?] (NEW)
optional boolean choice
> 1. choice 0 (OPT_BOOL_CHOICE0)
2. choice 1 (OPT_BOOL_CHOICE1) (NEW)
choice[1-2?]:
tristate choice
1. choice 0 (TRI_CHOICE0) (NEW)
> 2. choice 1 (TRI_CHOICE1) (NEW)
choice[1-2?]:
optional tristate choice [N/y/?]
xen/tools/kconfig/tests/choice_value_with_m_dep/Kconfig
+21
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@@ -0,0 +1,21 @@
# SPDX-License-Identifier: GPL-2.0
config MODULES
def_bool y
option modules
config DEP
tristate
default m
choice
prompt "Tristate Choice"
config CHOICE0
tristate "Choice 0"
config CHOICE1
tristate "Choice 1"
depends on DEP
endchoice
xen/tools/kconfig/tests/choice_value_with_m_dep/__init__.py
+16
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@@ -0,0 +1,16 @@
# SPDX-License-Identifier: GPL-2.0
"""
Hide tristate choice values with mod dependency in y choice.
If tristate choice values depend on symbols set to 'm', they should be
hidden when the choice containing them is changed from 'm' to 'y'
(i.e. exclusive choice).
Related Linux commit: fa64e5f6a35efd5e77d639125d973077ca506074
"""
def test(conf):
assert conf.oldaskconfig('config', 'y') == 0
assert conf.config_contains('expected_config')
assert conf.stdout_contains('expected_stdout')
xen/tools/kconfig/tests/choice_value_with_m_dep/config
+2
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@@ -0,0 +1,2 @@
CONFIG_CHOICE0=m
CONFIG_CHOICE1=m
xen/tools/kconfig/tests/choice_value_with_m_dep/expected_config
+3
View File
@@ -0,0 +1,3 @@
CONFIG_MODULES=y
CONFIG_DEP=m
CONFIG_CHOICE0=y
xen/tools/kconfig/tests/choice_value_with_m_dep/expected_stdout
+4
View File
@@ -0,0 +1,4 @@
Tristate Choice [M/y/?] y
Tristate Choice
> 1. Choice 0 (CHOICE0)
choice[1]: 1
xen/tools/kconfig/tests/conftest.py
+291
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@@ -0,0 +1,291 @@
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2018 Masahiro Yamada <yamada.masahiro@socionext.com>
#
"""
Kconfig unit testing framework.
This provides fixture functions commonly used from test files.
"""
import os
import pytest
import shutil
import subprocess
import tempfile
CONF_PATH = os.path.abspath(os.path.join('scripts', 'kconfig', 'conf'))
class Conf:
"""Kconfig runner and result checker.
This class provides methods to run text-based interface of Kconfig
(scripts/kconfig/conf) and retrieve the resulted configuration,
stdout, and stderr. It also provides methods to compare those
results with expectations.
"""
def __init__(self, request):
"""Create a new Conf instance.
request: object to introspect the requesting test module
"""
# the directory of the test being run
self._test_dir = os.path.dirname(str(request.fspath))
# runners
def _run_conf(self, mode, dot_config=None, out_file='.config',
interactive=False, in_keys=None, extra_env={}):
"""Run text-based Kconfig executable and save the result.
mode: input mode option (--oldaskconfig, --defconfig=<file> etc.)
dot_config: .config file to use for configuration base
out_file: file name to contain the output config data
interactive: flag to specify the interactive mode
in_keys: key inputs for interactive modes
extra_env: additional environments
returncode: exit status of the Kconfig executable
"""
command = [CONF_PATH, mode, 'Kconfig']
# Override 'srctree' environment to make the test as the top directory
extra_env['srctree'] = self._test_dir
# Run Kconfig in a temporary directory.
# This directory is automatically removed when done.
with tempfile.TemporaryDirectory() as temp_dir:
# if .config is given, copy it to the working directory
if dot_config:
shutil.copyfile(os.path.join(self._test_dir, dot_config),
os.path.join(temp_dir, '.config'))
ps = subprocess.Popen(command,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=temp_dir,
env=dict(os.environ, **extra_env))
# If input key sequence is given, feed it to stdin.
if in_keys:
ps.stdin.write(in_keys.encode('utf-8'))
while ps.poll() is None:
# For interactive modes such as oldaskconfig, oldconfig,
# send 'Enter' key until the program finishes.
if interactive:
ps.stdin.write(b'\n')
self.retcode = ps.returncode
self.stdout = ps.stdout.read().decode()
self.stderr = ps.stderr.read().decode()
# Retrieve the resulted config data only when .config is supposed
# to exist. If the command fails, the .config does not exist.
# 'listnewconfig' does not produce .config in the first place.
if self.retcode == 0 and out_file:
with open(os.path.join(temp_dir, out_file)) as f:
self.config = f.read()
else:
self.config = None
# Logging:
# Pytest captures the following information by default. In failure
# of tests, the captured log will be displayed. This will be useful to
# figure out what has happened.
print("[command]\n{}\n".format(' '.join(command)))
print("[retcode]\n{}\n".format(self.retcode))
print("[stdout]")
print(self.stdout)
print("[stderr]")
print(self.stderr)
if self.config is not None:
print("[output for '{}']".format(out_file))
print(self.config)
return self.retcode
def oldaskconfig(self, dot_config=None, in_keys=None):
"""Run oldaskconfig.
dot_config: .config file to use for configuration base (optional)
in_key: key inputs (optional)
returncode: exit status of the Kconfig executable
"""
return self._run_conf('--oldaskconfig', dot_config=dot_config,
interactive=True, in_keys=in_keys)
def oldconfig(self, dot_config=None, in_keys=None):
"""Run oldconfig.
dot_config: .config file to use for configuration base (optional)
in_key: key inputs (optional)
returncode: exit status of the Kconfig executable
"""
return self._run_conf('--oldconfig', dot_config=dot_config,
interactive=True, in_keys=in_keys)
def olddefconfig(self, dot_config=None):
"""Run olddefconfig.
dot_config: .config file to use for configuration base (optional)
returncode: exit status of the Kconfig executable
"""
return self._run_conf('--olddefconfig', dot_config=dot_config)
def defconfig(self, defconfig):
"""Run defconfig.
defconfig: defconfig file for input
returncode: exit status of the Kconfig executable
"""
defconfig_path = os.path.join(self._test_dir, defconfig)
return self._run_conf('--defconfig={}'.format(defconfig_path))
def _allconfig(self, mode, all_config):
if all_config:
all_config_path = os.path.join(self._test_dir, all_config)
extra_env = {'KCONFIG_ALLCONFIG': all_config_path}
else:
extra_env = {}
return self._run_conf('--{}config'.format(mode), extra_env=extra_env)
def allyesconfig(self, all_config=None):
"""Run allyesconfig.
all_config: fragment config file for KCONFIG_ALLCONFIG (optional)
returncode: exit status of the Kconfig executable
"""
return self._allconfig('allyes', all_config)
def allmodconfig(self, all_config=None):
"""Run allmodconfig.
all_config: fragment config file for KCONFIG_ALLCONFIG (optional)
returncode: exit status of the Kconfig executable
"""
return self._allconfig('allmod', all_config)
def allnoconfig(self, all_config=None):
"""Run allnoconfig.
all_config: fragment config file for KCONFIG_ALLCONFIG (optional)
returncode: exit status of the Kconfig executable
"""
return self._allconfig('allno', all_config)
def alldefconfig(self, all_config=None):
"""Run alldefconfig.
all_config: fragment config file for KCONFIG_ALLCONFIG (optional)
returncode: exit status of the Kconfig executable
"""
return self._allconfig('alldef', all_config)
def randconfig(self, all_config=None):
"""Run randconfig.
all_config: fragment config file for KCONFIG_ALLCONFIG (optional)
returncode: exit status of the Kconfig executable
"""
return self._allconfig('rand', all_config)
def savedefconfig(self, dot_config):
"""Run savedefconfig.
dot_config: .config file for input
returncode: exit status of the Kconfig executable
"""
return self._run_conf('--savedefconfig', out_file='defconfig')
def listnewconfig(self, dot_config=None):
"""Run listnewconfig.
dot_config: .config file to use for configuration base (optional)
returncode: exit status of the Kconfig executable
"""
return self._run_conf('--listnewconfig', dot_config=dot_config,
out_file=None)
# checkers
def _read_and_compare(self, compare, expected):
"""Compare the result with expectation.
compare: function to compare the result with expectation
expected: file that contains the expected data
"""
with open(os.path.join(self._test_dir, expected)) as f:
expected_data = f.read()
return compare(self, expected_data)
def _contains(self, attr, expected):
return self._read_and_compare(
lambda s, e: getattr(s, attr).find(e) >= 0,
expected)
def _matches(self, attr, expected):
return self._read_and_compare(lambda s, e: getattr(s, attr) == e,
expected)
def config_contains(self, expected):
"""Check if resulted configuration contains expected data.
expected: file that contains the expected data
returncode: True if result contains the expected data, False otherwise
"""
return self._contains('config', expected)
def config_matches(self, expected):
"""Check if resulted configuration exactly matches expected data.
expected: file that contains the expected data
returncode: True if result matches the expected data, False otherwise
"""
return self._matches('config', expected)
def stdout_contains(self, expected):
"""Check if resulted stdout contains expected data.
expected: file that contains the expected data
returncode: True if result contains the expected data, False otherwise
"""
return self._contains('stdout', expected)
def stdout_matches(self, expected):
"""Check if resulted stdout exactly matches expected data.
expected: file that contains the expected data
returncode: True if result matches the expected data, False otherwise
"""
return self._matches('stdout', expected)
def stderr_contains(self, expected):
"""Check if resulted stderr contains expected data.
expected: file that contains the expected data
returncode: True if result contains the expected data, False otherwise
"""
return self._contains('stderr', expected)
def stderr_matches(self, expected):
"""Check if resulted stderr exactly matches expected data.
expected: file that contains the expected data
returncode: True if result matches the expected data, False otherwise
"""
return self._matches('stderr', expected)
@pytest.fixture(scope="module")
def conf(request):
"""Create a Conf instance and provide it to test functions."""
return Conf(request)
xen/tools/kconfig/tests/err_recursive_dep/Kconfig
+63
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@@ -0,0 +1,63 @@
# SPDX-License-Identifier: GPL-2.0
# depends on itself
config A
bool "A"
depends on A
# select itself
config B
bool
select B
# depends on each other
config C1
bool "C1"
depends on C2
config C2
bool "C2"
depends on C1
# depends on and select
config D1
bool "D1"
depends on D2
select D2
config D2
bool
# depends on and imply
config E1
bool "E1"
depends on E2
imply E2
config E2
bool "E2"
# property
config F1
bool "F1"
default F2
config F2
bool "F2"
depends on F1
# menu
menu "menu depending on its content"
depends on G
config G
bool "G"
endmenu
xen/tools/kconfig/tests/err_recursive_dep/__init__.py
+10
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@@ -0,0 +1,10 @@
# SPDX-License-Identifier: GPL-2.0
"""
Detect recursive dependency error.
Recursive dependency should be treated as an error.
"""
def test(conf):
assert conf.oldaskconfig() == 1
assert conf.stderr_contains('expected_stderr')
xen/tools/kconfig/tests/err_recursive_dep/expected_stderr
+38
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@@ -0,0 +1,38 @@
Kconfig:11:error: recursive dependency detected!
Kconfig:11: symbol B is selected by B
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Kconfig:5:error: recursive dependency detected!
Kconfig:5: symbol A depends on A
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Kconfig:17:error: recursive dependency detected!
Kconfig:17: symbol C1 depends on C2
Kconfig:21: symbol C2 depends on C1
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Kconfig:32:error: recursive dependency detected!
Kconfig:32: symbol D2 is selected by D1
Kconfig:27: symbol D1 depends on D2
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Kconfig:37:error: recursive dependency detected!
Kconfig:37: symbol E1 depends on E2
Kconfig:42: symbol E2 is implied by E1
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Kconfig:60:error: recursive dependency detected!
Kconfig:60: symbol G depends on G
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Kconfig:51:error: recursive dependency detected!
Kconfig:51: symbol F2 depends on F1
Kconfig:49: symbol F1 default value contains F2
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
xen/tools/kconfig/tests/err_recursive_inc/Kconfig
+2
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@@ -0,0 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
source "Kconfig.inc1"
xen/tools/kconfig/tests/err_recursive_inc/Kconfig.inc1
+5
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@@ -0,0 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
source "Kconfig.inc2"
xen/tools/kconfig/tests/err_recursive_inc/Kconfig.inc2
+4
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@@ -0,0 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
source "Kconfig.inc3"
xen/tools/kconfig/tests/err_recursive_inc/Kconfig.inc3
+2
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@@ -0,0 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
source "Kconfig.inc1"
xen/tools/kconfig/tests/err_recursive_inc/__init__.py
+11
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@@ -0,0 +1,11 @@
# SPDX-License-Identifier: GPL-2.0
"""
Detect recursive inclusion error.
If recursive inclusion is detected, it should fail with error messages.
"""
def test(conf):
assert conf.oldaskconfig() != 0
assert conf.stderr_contains('expected_stderr')
xen/tools/kconfig/tests/err_recursive_inc/expected_stderr
+6
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@@ -0,0 +1,6 @@
Recursive inclusion detected.
Inclusion path:
current file : Kconfig.inc1
included from: Kconfig.inc3:2
included from: Kconfig.inc2:4
included from: Kconfig.inc1:5
xen/tools/kconfig/tests/inter_choice/Kconfig
+25
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@@ -0,0 +1,25 @@
# SPDX-License-Identifier: GPL-2.0
config MODULES
def_bool y
option modules
choice
prompt "Choice"
config CHOICE_VAL0
tristate "Choice 0"
config CHOIVE_VAL1
tristate "Choice 1"
endchoice
choice
prompt "Another choice"
depends on CHOICE_VAL0
config DUMMY
bool "dummy"
endchoice
xen/tools/kconfig/tests/inter_choice/__init__.py
+15
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@@ -0,0 +1,15 @@
# SPDX-License-Identifier: GPL-2.0
"""
Do not affect user-assigned choice value by another choice.
Handling of state flags for choices is complecated. In old days,
the defconfig result of a choice could be affected by another choice
if those choices interact by 'depends on', 'select', etc.
Related Linux commit: fbe98bb9ed3dae23e320c6b113e35f129538d14a
"""
def test(conf):
assert conf.defconfig('defconfig') == 0
assert conf.config_contains('expected_config')
xen/tools/kconfig/tests/inter_choice/defconfig
+1
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@@ -0,0 +1 @@
CONFIG_CHOICE_VAL0=y
xen/tools/kconfig/tests/inter_choice/expected_config
+4
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@@ -0,0 +1,4 @@
CONFIG_MODULES=y
CONFIG_CHOICE_VAL0=y
# CONFIG_CHOIVE_VAL1 is not set
CONFIG_DUMMY=y
xen/tools/kconfig/tests/new_choice_with_dep/Kconfig
+39
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@@ -0,0 +1,39 @@
# SPDX-License-Identifier: GPL-2.0
config A
bool "A"
help
This is a new symbol.
choice
prompt "Choice ?"
depends on A
help
"depends on A" has been newly added.
config CHOICE_B
bool "Choice B"
config CHOICE_C
bool "Choice C"
help
This is a new symbol, so should be asked.
endchoice
choice
prompt "Choice2 ?"
config CHOICE_D
bool "Choice D"
config CHOICE_E
bool "Choice E"
config CHOICE_F
bool "Choice F"
depends on A
help
This is a new symbol, so should be asked.
endchoice
xen/tools/kconfig/tests/new_choice_with_dep/__init__.py
+15
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@@ -0,0 +1,15 @@
# SPDX-License-Identifier: GPL-2.0
"""
Ask new choice values when they become visible.
If new choice values are added with new dependency, and they become
visible during user configuration, oldconfig should recognize them
as (NEW), and ask the user for choice.
Related Linux commit: 5d09598d488f081e3be23f885ed65cbbe2d073b5
"""
def test(conf):
assert conf.oldconfig('config', 'y') == 0
assert conf.stdout_contains('expected_stdout')
xen/tools/kconfig/tests/new_choice_with_dep/config
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CONFIG_CHOICE_B=y
# CONFIG_CHOICE_D is not set
CONFIG_CHOICE_E=y
xen/tools/kconfig/tests/new_choice_with_dep/expected_stdout
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@@ -0,0 +1,10 @@
A (A) [N/y/?] (NEW) y
Choice ?
> 1. Choice B (CHOICE_B)
2. Choice C (CHOICE_C) (NEW)
choice[1-2?]:
Choice2 ?
1. Choice D (CHOICE_D)
> 2. Choice E (CHOICE_E)
3. Choice F (CHOICE_F) (NEW)
choice[1-3?]:
xen/tools/kconfig/tests/no_write_if_dep_unmet/Kconfig
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# SPDX-License-Identifier: GPL-2.0
config A
bool "A"
choice
prompt "Choice ?"
depends on A
config CHOICE_B
bool "Choice B"
config CHOICE_C
bool "Choice C"
endchoice
xen/tools/kconfig/tests/no_write_if_dep_unmet/__init__.py
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# SPDX-License-Identifier: GPL-2.0
"""
Do not write choice values to .config if the dependency is unmet.
"# CONFIG_... is not set" should not be written into the .config file
for symbols with unmet dependency.
This was not working correctly for choice values because choice needs
a bit different symbol computation.
This checks that no unneeded "# COFIG_... is not set" is contained in
the .config file.
Related Linux commit: cb67ab2cd2b8abd9650292c986c79901e3073a59
"""
def test(conf):
assert conf.oldaskconfig('config', 'n') == 0
assert conf.config_matches('expected_config')
xen/tools/kconfig/tests/no_write_if_dep_unmet/config
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CONFIG_A=y
xen/tools/kconfig/tests/no_write_if_dep_unmet/expected_config
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#
# Automatically generated file; DO NOT EDIT.
# Main menu
#
# CONFIG_A is not set
xen/tools/kconfig/tests/preprocess/builtin_func/Kconfig
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# SPDX-License-Identifier: GPL-2.0
# 'info' prints the argument to stdout.
$(info,hello world 0)
# 'warning-if', if the first argument is y, sends the second argument to stderr,
# and the message is prefixed with the current file name and line number.
$(warning-if,y,hello world 1)
# 'error-if' is similar, but it terminates the parsing immediately.
# The following is just no-op since the first argument is not y.
$(error-if,n,this should not be printed)
# Shorthand
warning = $(warning-if,y,$(1))
# 'shell' executes a command, and returns its stdout.
$(warning,$(shell,echo hello world 3))
# Every newline in the output is replaced with a space,
# but any trailing newlines are deleted.
$(warning,$(shell,printf 'hello\nworld\n\n4\n\n\n'))
# 'filename' is expanded to the currently parsed file name,
# 'lineno' to the line number.
$(warning,filename=$(filename))
$(warning,lineno=$(lineno))
xen/tools/kconfig/tests/preprocess/builtin_func/__init__.py
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# SPDX-License-Identifier: GPL-2.0
"""
Built-in function tests.
"""
def test(conf):
assert conf.oldaskconfig() == 0
assert conf.stdout_contains('expected_stdout')
assert conf.stderr_matches('expected_stderr')
xen/tools/kconfig/tests/preprocess/builtin_func/expected_stderr
+5
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Kconfig:8: hello world 1
Kconfig:18: hello world 3
Kconfig:22: hello world 4
Kconfig:26: filename=Kconfig
Kconfig:27: lineno=27
xen/tools/kconfig/tests/preprocess/builtin_func/expected_stdout
+1
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@@ -0,0 +1 @@
hello world 0
xen/tools/kconfig/tests/preprocess/circular_expansion/Kconfig
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# SPDX-License-Identifier: GPL-2.0
X = $(Y)
Y = $(X)
$(info $(X))
xen/tools/kconfig/tests/preprocess/circular_expansion/__init__.py
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# SPDX-License-Identifier: GPL-2.0
"""
Detect circular variable expansion.
If a recursively expanded variable references itself (eventually),
it should fail with an error message.
"""
def test(conf):
assert conf.oldaskconfig() != 0
assert conf.stderr_matches('expected_stderr')
xen/tools/kconfig/tests/preprocess/circular_expansion/expected_stderr
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Kconfig:5: Recursive variable 'X' references itself (eventually)
xen/tools/kconfig/tests/preprocess/escape/Kconfig
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# SPDX-License-Identifier: GPL-2.0
# Shorthand
warning = $(warning-if,y,$(1))
# You can not pass commas directly to a function since they are treated as
# delimiters. You can use the following trick to do so.
comma := ,
$(warning,hello$(comma) world)
# Like Make, single quotes, double quotes, spaces are treated verbatim.
# The following prints the text as-is.
$(warning, ' " '" ' ''' "'")
# Unlike Make, '$' has special meaning only when it is followed by '('.
# No need to escape '$' itself.
$(warning,$)
$(warning,$$)
$ := 1
$(warning,$($))
# You need a trick to escape '$' followed by '('
# The following should print "$(X)". It should not be expanded further.
dollar := $
$(warning,$(dollar)(X))
# You need a trick to treat unbalanced parentheses.
# The following should print "(".
left_paren := (
$(warning,$(left_paren))
# A simple expanded should not be expanded multiple times.
# The following should print "$(X)". It should not be expanded further.
Y := $(dollar)(X)
$(warning,$(Y))
# The following should print "$(X)" as well.
Y = $(dollar)(X)
$(warning,$(Y))
# The following should print "$(".
# It should not be emit "unterminated reference" error.
unterminated := $(dollar)(
$(warning,$(unterminated))
xen/tools/kconfig/tests/preprocess/escape/__init__.py
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# SPDX-License-Identifier: GPL-2.0
"""
Escape sequence tests.
"""
def test(conf):
assert conf.oldaskconfig() == 0
assert conf.stderr_matches('expected_stderr')
xen/tools/kconfig/tests/preprocess/escape/expected_stderr
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Kconfig:9: hello, world
Kconfig:13: ' " '" ' ''' "'"
Kconfig:17: $
Kconfig:18: $$
Kconfig:20: 1
Kconfig:25: $(X)
Kconfig:30: (
Kconfig:35: $(X)
Kconfig:39: $(X)
Kconfig:44: $(
xen/tools/kconfig/tests/preprocess/variable/Kconfig
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# SPDX-License-Identifier: GPL-2.0
# Shorthand
warning = $(warning-if,y,$(1))
# Simply expanded variable.
X := 1
SIMPLE := $(X)
X := 2
$(warning,SIMPLE = $(SIMPLE))
# Recursively expanded variable.
X := 1
RECURSIVE = $(X)
X := 2
$(warning,RECURSIVE = $(RECURSIVE))
# Append something to a simply expanded variable.
Y := 3
SIMPLE += $(Y)
Y := 4
$(warning,SIMPLE = $(SIMPLE))
# Append something to a recursively expanded variable.
Y := 3
RECURSIVE += $(Y)
Y := 4
$(warning,RECURSIVE = $(RECURSIVE))
# Use += operator to an undefined variable.
# This works as a recursively expanded variable.
Y := 3
UNDEFINED_VARIABLE += $(Y)
Y := 4
$(warning,UNDEFINED_VARIABLE = $(UNDEFINED_VARIABLE))
# You can use variable references for the lefthand side of assignment statement.
X := A
Y := B
$(X)$(Y) := 5
$(warning,AB = $(AB))
# User-defined function.
greeting = $(1), my name is $(2).
$(warning,$(greeting,Hello,John))
# The number of arguments is not checked for user-defined functions.
# If some arguments are optional, it is useful to pass fewer parameters.
# $(2) will be blank in this case.
$(warning,$(greeting,Hello))
# Unreferenced parameters are just ignored.
$(warning,$(greeting,Hello,John,ignored,ignored))
xen/tools/kconfig/tests/preprocess/variable/__init__.py
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# SPDX-License-Identifier: GPL-2.0
"""
Variable and user-defined function tests.
"""
def test(conf):
assert conf.oldaskconfig() == 0
assert conf.stderr_matches('expected_stderr')
xen/tools/kconfig/tests/preprocess/variable/expected_stderr
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Kconfig:10: SIMPLE = 1
Kconfig:16: RECURSIVE = 2
Kconfig:22: SIMPLE = 1 3
Kconfig:28: RECURSIVE = 2 4
Kconfig:35: UNDEFINED_VARIABLE = 4
Kconfig:41: AB = 5
Kconfig:45: Hello, my name is John.
Kconfig:50: Hello, my name is .
Kconfig:53: Hello, my name is John.
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