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xen/Config.mk
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Ian Campbell 5f82d0858d tools: support SeaBIOS. Use by default when upstream qemu is configured. 
The SeaBIOS integration here is only semi-complete and is targetted at
developers and very early adopters who can be expected to cope with
some rough edges. In particular the user must clone, patch as
necessary and compile SeaBIOS themselves since this patchset does not
cover any of that (in the same way we currently do not integrate
upstream qemu clone+build). Include a big comment to that effect next
to the Config.mk option.

Many of the bios_config callback functions are not yet used by
SeaBIOS.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
2011-04-20 17:13:06 +01:00

213 lines
7.1 KiB
Makefile
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# -*- mode: Makefile; -*-
# A debug build of Xen and tools?
debug ?= y
XEN_COMPILE_ARCH ?= $(shell uname -m | sed -e s/i.86/x86_32/ \
-e s/i86pc/x86_32/ -e s/amd64/x86_64/)
XEN_TARGET_ARCH ?= $(XEN_COMPILE_ARCH)
XEN_OS ?= $(shell uname -s)
CONFIG_$(XEN_OS) := y
SHELL ?= /bin/sh
# Tools to run on system hosting the build
HOSTCC = gcc
HOSTCFLAGS = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
HOSTCFLAGS += -fno-strict-aliasing
DISTDIR ?= $(XEN_ROOT)/dist
DESTDIR ?= /
# Allow phony attribute to be listed as dependency rather than fake target
.PHONY: .phony
# Use Clang/LLVM instead of GCC?
clang ?= n
ifeq ($(clang),n)
gcc := y
else
gcc := n
endif
include $(XEN_ROOT)/config/$(XEN_OS).mk
include $(XEN_ROOT)/config/$(XEN_TARGET_ARCH).mk
SHAREDIR ?= $(PREFIX)/share
DOCDIR ?= $(SHAREDIR)/doc/xen
MANDIR ?= $(SHAREDIR)/man
BASH_COMPLETION_DIR ?= $(CONFIG_DIR)/bash_completion.d
# arguments: variable, common path part, path to test, if yes, if no
define setvar_dir
ifndef $(1)
ifneq (,$(wildcard $(2)$(3)))
$(1) ?= $(2)$(4)
else
$(1) ?= $(2)$(5)
endif
endif
endef
# See distro_mapping.txt for other options
$(eval $(call setvar_dir,CONFIG_LEAF_DIR,,/etc/sysconfig,sysconfig,default))
$(eval $(call setvar_dir,SUBSYS_DIR,/var/run,/subsys,/subsys,))
$(eval $(call setvar_dir,INITD_DIR,/etc,/rc.d/init.d,/rc.d/init.d,/init.d))
ifneq ($(EXTRA_PREFIX),)
EXTRA_INCLUDES += $(EXTRA_PREFIX)/include
EXTRA_LIB += $(EXTRA_PREFIX)/$(LIBLEAFDIR)
endif
BISON ?= bison
FLEX ?= flex
PYTHON ?= python
PYTHON_PREFIX_ARG ?= --prefix="$(PREFIX)"
# The above requires that PREFIX contains *no spaces*. This variable is here
# to permit the user to set PYTHON_PREFIX_ARG to '' to workaround this bug:
# https://bugs.launchpad.net/ubuntu/+bug/362570
# cc-option: Check if compiler supports first option, else fall back to second.
# Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586)
cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
/dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;)
# cc-option-add: Add an option to compilation flags, but only if supported.
# Usage: $(call cc-option-add CFLAGS,CC,-march=winchip-c6)
cc-option-add = $(eval $(call cc-option-add-closure,$(1),$(2),$(3)))
define cc-option-add-closure
ifneq ($$(call cc-option,$$($(2)),$(3),n),n)
$(1) += $(3)
endif
endef
cc-options-add = $(foreach o,$(3),$(call cc-option-add,$(1),$(2),$(o)))
# cc-ver: Check compiler is at least specified version. Return boolean 'y'/'n'.
# Usage: ifeq ($(call cc-ver,$(CC),0x030400),y)
cc-ver = $(shell if [ $$((`$(1) -dumpversion | awk -F. \
'{ printf "0x%02x%02x%02x", $$1, $$2, $$3}'`)) -ge $$(($(2))) ]; \
then echo y; else echo n; fi ;)
# cc-ver-check: Check compiler is at least specified version, else fail.
# Usage: $(call cc-ver-check,CC,0x030400,"Require at least gcc-3.4")
cc-ver-check = $(eval $(call cc-ver-check-closure,$(1),$(2),$(3)))
define cc-ver-check-closure
ifeq ($$(call cc-ver,$$($(1)),$(2)),n)
override $(1) = echo "*** FATAL BUILD ERROR: "$(3) >&2; exit 1;
cc-option := n
endif
endef
define buildmakevars2shellvars
export PREFIX="$(PREFIX)"; \
export XEN_SCRIPT_DIR="$(XEN_SCRIPT_DIR)"; \
export XEN_ROOT="$(XEN_ROOT)"
endef
buildmakevars2file = $(eval $(call buildmakevars2file-closure,$(1)))
define buildmakevars2file-closure
.PHONY: genpath
genpath:
rm -f $(1).tmp; \
echo "SBINDIR=\"$(SBINDIR)\"" >> $(1).tmp; \
echo "BINDIR=\"$(BINDIR)\"" >> $(1).tmp; \
echo "LIBEXEC=\"$(LIBEXEC)\"" >> $(1).tmp; \
echo "LIBDIR=\"$(LIBDIR)\"" >> $(1).tmp; \
echo "SHAREDIR=\"$(SHAREDIR)\"" >> $(1).tmp; \
echo "PRIVATE_BINDIR=\"$(PRIVATE_BINDIR)\"" >> $(1).tmp; \
echo "XENFIRMWAREDIR=\"$(XENFIRMWAREDIR)\"" >> $(1).tmp; \
echo "XEN_CONFIG_DIR=\"$(XEN_CONFIG_DIR)\"" >> $(1).tmp; \
echo "XEN_SCRIPT_DIR=\"$(XEN_SCRIPT_DIR)\"" >> $(1).tmp; \
echo "XEN_LOCK_DIR=\"$(XEN_LOCK_DIR)\"" >> $(1).tmp; \
if ! cmp $(1).tmp $(1); then mv -f $(1).tmp $(1); fi
endef
ifeq ($(debug),y)
CFLAGS += -g
endif
CFLAGS += -fno-strict-aliasing
CFLAGS += -std=gnu99
CFLAGS += -Wall -Wstrict-prototypes
# -Wunused-value makes GCC 4.x too aggressive for my taste: ignoring the
# result of any casted expression causes a warning.
CFLAGS += -Wno-unused-value
# Clang complains about macros that expand to 'if ( ( foo == bar ) ) ...'
# and is over-zealous with the printf format lint
CFLAGS-$(clang) += -Wno-parentheses -Wno-format
$(call cc-option-add,HOSTCFLAGS,HOSTCC,-Wdeclaration-after-statement)
$(call cc-option-add,CFLAGS,CC,-Wdeclaration-after-statement)
LDFLAGS += $(foreach i, $(EXTRA_LIB), -L$(i))
CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i))
EMBEDDED_EXTRA_CFLAGS := -nopie -fno-stack-protector -fno-stack-protector-all
EMBEDDED_EXTRA_CFLAGS += -fno-exceptions
# Enable XSM security module (by default, Flask).
XSM_ENABLE ?= n
FLASK_ENABLE ?= $(XSM_ENABLE)
# Download GIT repositories via HTTP or GIT's own protocol?
# GIT's protocol is faster and more robust, when it works at all (firewalls
# may block it). We make it the default, but if your GIT repository downloads
# fail or hang, please specify GIT_HTTP=y in your environment.
GIT_HTTP ?= n
XEN_EXTFILES_URL=http://xenbits.xensource.com/xen-extfiles
# All the files at that location were downloaded from elsewhere on
# the internet. The original download URL is preserved as a comment
# near the place in the Xen Makefiles where the file is used.
ifeq ($(GIT_HTTP),y)
QEMU_REMOTE=http://xenbits.xensource.com/git-http/qemu-xen-unstable.git
else
QEMU_REMOTE=git://xenbits.xensource.com/qemu-xen-unstable.git
endif
# Specify which qemu-dm to use. This may be `ioemu' to use the old
# Mercurial in-tree version, or a local directory, or a git URL.
# CONFIG_QEMU ?= `pwd`/$(XEN_ROOT)/../qemu-xen.git
CONFIG_QEMU ?= $(QEMU_REMOTE)
QEMU_TAG := xen-4.1.0-rc6
#QEMU_TAG ?= e073e69457b4d99b6da0b6536296e3498f7f6599
# Fri Feb 11 17:54:51 2011 +0000
# qemu-xen: fix segfault with empty cdroms
# Short answer -- do not enable this unless you know what you are
# doing and are prepared for some pain.
# SeaBIOS integration is a work in progress. Before enabling this
# option you must clone git://git.qemu.org/seabios.git/, possibly add
# some development patches and then build it yourself before pointing
# this variable to it (using an absolute path).
#
# Note that using SeaBIOS requires the use the upstream qemu as the
# device model.
SEABIOS_DIR ?=
# Optional components
XENSTAT_XENTOP ?= y
VTPM_TOOLS ?= n
LIBXENAPI_BINDINGS ?= n
PYTHON_TOOLS ?= y
OCAML_TOOLS ?= y
CONFIG_MINITERM ?= n
CONFIG_LOMOUNT ?= n
ifeq ($(OCAML_TOOLS),y)
OCAML_TOOLS := $(shell ocamlopt -v > /dev/null 2>&1 && echo "y" || echo "n")
endif
-include $(XEN_ROOT)/.config
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