mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 10:11:27 +01:00
Ian Jackson
85896a7c4d
Added autotools magic to replace custom check scripts. The previous checks have been ported to autoconf, and some additional ones have been added (plus the suggestions from running autoscan). Two files are created as a result from executing configure script, config/Tools.mk and config.h. conf/Tools.mk is included by tools/Rules.mk, and contains most of the options previously defined in .config, that can now be set passing parameters or defining environment variables when executing configure script. config.h is only used by libxl/xl to detect yajl_version.h. [ tools/config.sub and config.guess copied from autotools-dev 20100122.1 from Debian squeeze i386, which is GPLv2. tools/configure generated using the included ./autogen.sh which ran autoconf 2.67-2 from Debian squeeze i386. autoconf is GPLv3+ but has a special exception for the autoconf output; this exception applies to us and exempts us from complying with GPLv3+ for configure, which is good as Xen is GPL2 only. - Ian Jackson ] Signed-off-by: Roger Pau Monne <roger.pau@entel.upc.edu> Tested-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
217 lines
7.3 KiB
Makefile
217 lines
7.3 KiB
Makefile
# -*- mode: Makefile; -*-
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ifeq ($(filter /%,$(XEN_ROOT)),)
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$(error XEN_ROOT must be absolute)
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endif
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# fallback for older make
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realpath = $(wildcard $(foreach file,$(1),$(shell cd -P $(dir $(file)) && echo "$$PWD/$(notdir $(file))")))
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-include $(XEN_ROOT)/.config
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# A debug build of Xen and tools?
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debug ?= y
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XEN_COMPILE_ARCH ?= $(shell uname -m | sed -e s/i.86/x86_32/ \
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-e s/i86pc/x86_32/ -e s/amd64/x86_64/ -e s/arm.*/arm/)
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XEN_TARGET_ARCH ?= $(XEN_COMPILE_ARCH)
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XEN_OS ?= $(shell uname -s)
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CONFIG_$(XEN_OS) := y
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SHELL ?= /bin/sh
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# Tools to run on system hosting the build
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HOSTCC = gcc
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HOSTCFLAGS = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
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HOSTCFLAGS += -fno-strict-aliasing
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DISTDIR ?= $(XEN_ROOT)/dist
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DESTDIR ?= /
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# Allow phony attribute to be listed as dependency rather than fake target
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.PHONY: .phony
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# Use Clang/LLVM instead of GCC?
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clang ?= n
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ifeq ($(clang),n)
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gcc := y
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else
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gcc := n
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endif
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include $(XEN_ROOT)/config/$(XEN_OS).mk
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include $(XEN_ROOT)/config/$(XEN_TARGET_ARCH).mk
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SHAREDIR ?= $(PREFIX)/share
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DOCDIR ?= $(SHAREDIR)/doc/xen
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MANDIR ?= $(SHAREDIR)/man
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BASH_COMPLETION_DIR ?= $(CONFIG_DIR)/bash_completion.d
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# arguments: variable, common path part, path to test, if yes, if no
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define setvar_dir
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ifndef $(1)
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ifneq (,$(wildcard $(2)$(3)))
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$(1) ?= $(2)$(4)
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else
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$(1) ?= $(2)$(5)
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endif
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endif
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endef
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# See distro_mapping.txt for other options
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$(eval $(call setvar_dir,CONFIG_LEAF_DIR,,/etc/sysconfig,sysconfig,default))
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$(eval $(call setvar_dir,SUBSYS_DIR,/var/run,/subsys,/subsys,))
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$(eval $(call setvar_dir,INITD_DIR,/etc,/rc.d/init.d,/rc.d/init.d,/init.d))
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ifneq ($(EXTRA_PREFIX),)
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EXTRA_INCLUDES += $(EXTRA_PREFIX)/include
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EXTRA_LIB += $(EXTRA_PREFIX)/$(LIBLEAFDIR)
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endif
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PYTHON ?= python
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PYTHON_PREFIX_ARG ?= --prefix="$(PREFIX)"
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# The above requires that PREFIX contains *no spaces*. This variable is here
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# to permit the user to set PYTHON_PREFIX_ARG to '' to workaround this bug:
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# https://bugs.launchpad.net/ubuntu/+bug/362570
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# cc-option: Check if compiler supports first option, else fall back to second.
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#
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# This is complicated by the fact that unrecognised -Wno-* options:
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# (a) are ignored unless the compilation emits a warning; and
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# (b) even then produce a warning rather than an error
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# To handle this we do a test compile, passing the option-under-test, on a code
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# fragment that will always produce a warning (integer assigned to pointer).
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# We then grep for the option-under-test in the compiler's output, the presence
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# of which would indicate an "unrecognized command-line option" warning/error.
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#
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# Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586)
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cc-option = $(shell if test -z "`echo 'void*p=1;' | \
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$(1) $(2) -S -o /dev/null -xc - 2>&1 | grep -- $(2) -`"; \
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then echo "$(2)"; else echo "$(3)"; fi ;)
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# cc-option-add: Add an option to compilation flags, but only if supported.
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# Usage: $(call cc-option-add CFLAGS,CC,-march=winchip-c6)
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cc-option-add = $(eval $(call cc-option-add-closure,$(1),$(2),$(3)))
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define cc-option-add-closure
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ifneq ($$(call cc-option,$$($(2)),$(3),n),n)
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$(1) += $(3)
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endif
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endef
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cc-options-add = $(foreach o,$(3),$(call cc-option-add,$(1),$(2),$(o)))
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# cc-ver: Check compiler is at least specified version. Return boolean 'y'/'n'.
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# Usage: ifeq ($(call cc-ver,$(CC),0x030400),y)
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cc-ver = $(shell if [ $$((`$(1) -dumpversion | awk -F. \
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'{ printf "0x%02x%02x%02x", $$1, $$2, $$3}'`)) -ge $$(($(2))) ]; \
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then echo y; else echo n; fi ;)
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# cc-ver-check: Check compiler is at least specified version, else fail.
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# Usage: $(call cc-ver-check,CC,0x030400,"Require at least gcc-3.4")
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cc-ver-check = $(eval $(call cc-ver-check-closure,$(1),$(2),$(3)))
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define cc-ver-check-closure
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ifeq ($$(call cc-ver,$$($(1)),$(2)),n)
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override $(1) = echo "*** FATAL BUILD ERROR: "$(3) >&2; exit 1;
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cc-option := n
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endif
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endef
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define buildmakevars2shellvars
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export PREFIX="$(PREFIX)"; \
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export XEN_SCRIPT_DIR="$(XEN_SCRIPT_DIR)"; \
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export XEN_ROOT="$(XEN_ROOT)"
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endef
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#
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# Compare $(1) and $(2) and replace $(2) with $(1) if they differ
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#
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# Typically $(1) is a newly generated file and $(2) is the target file
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# being regenerated. This prevents changing the timestamp of $(2) only
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# due to being auto regenereated with the same contents.
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define move-if-changed
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if ! cmp -s $(1) $(2); then mv -f $(1) $(2); else rm -f $(1); fi
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endef
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buildmakevars2file = $(eval $(call buildmakevars2file-closure,$(1)))
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define buildmakevars2file-closure
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.PHONY: genpath
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genpath:
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rm -f $(1).tmp; \
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$(foreach var, \
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SBINDIR BINDIR LIBEXEC LIBDIR SHAREDIR PRIVATE_BINDIR \
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XENFIRMWAREDIR XEN_CONFIG_DIR XEN_SCRIPT_DIR XEN_LOCK_DIR \
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XEN_RUN_DIR XEN_PAGING_DIR, \
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echo "$(var)=\"$($(var))\"" >>$(1).tmp;) \
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$(call move-if-changed,$(1).tmp,$(1))
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endef
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ifeq ($(debug),y)
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CFLAGS += -g
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endif
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CFLAGS += -fno-strict-aliasing
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CFLAGS += -std=gnu99
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CFLAGS += -Wall -Wstrict-prototypes
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# Clang complains about macros that expand to 'if ( ( foo == bar ) ) ...'
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# and is over-zealous with the printf format lint
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CFLAGS-$(clang) += -Wno-parentheses -Wno-format
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$(call cc-option-add,HOSTCFLAGS,HOSTCC,-Wdeclaration-after-statement)
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$(call cc-option-add,CFLAGS,CC,-Wdeclaration-after-statement)
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$(call cc-option-add,CFLAGS,CC,-Wno-unused-but-set-variable)
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LDFLAGS += $(foreach i, $(EXTRA_LIB), -L$(i))
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CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i))
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LDFLAGS += $(foreach i, $(PREPEND_LIB), -L$(i))
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CFLAGS += $(foreach i, $(PREPEND_INCLUDES), -I$(i))
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APPEND_LDFLAGS += $(foreach i, $(APPEND_LIB), -L$(i))
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APPEND_CFLAGS += $(foreach i, $(APPEND_INCLUDES), -I$(i))
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EMBEDDED_EXTRA_CFLAGS := -nopie -fno-stack-protector -fno-stack-protector-all
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EMBEDDED_EXTRA_CFLAGS += -fno-exceptions
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XEN_EXTFILES_URL=http://xenbits.xensource.com/xen-extfiles
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# All the files at that location were downloaded from elsewhere on
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# the internet. The original download URL is preserved as a comment
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# near the place in the Xen Makefiles where the file is used.
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ifeq ($(GIT_HTTP),y)
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QEMU_REMOTE=http://xenbits.xensource.com/git-http/qemu-xen-unstable.git
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else
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QEMU_REMOTE=git://xenbits.xensource.com/qemu-xen-unstable.git
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endif
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ifeq ($(GIT_HTTP),y)
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QEMU_UPSTREAM_URL ?= http://xenbits.xen.org/git-http/qemu-upstream-unstable.git
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SEABIOS_UPSTREAM_URL ?= http://xenbits.xen.org/git-http/seabios.git
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else
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QEMU_UPSTREAM_URL ?= git://xenbits.xen.org/qemu-upstream-unstable.git
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SEABIOS_UPSTREAM_URL ?= git://xenbits.xen.org/seabios.git
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endif
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QEMU_UPSTREAM_REVISION ?= master
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SEABIOS_UPSTREAM_TAG ?= rel-1.6.3.1
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ETHERBOOT_NICS ?= rtl8139 8086100e
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CONFIG_ROMBIOS ?= y
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CONFIG_SEABIOS ?= y
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# Specify which qemu-dm to use. This may be `ioemu' to use the old
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# Mercurial in-tree version, or a local directory, or a git URL.
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# CONFIG_QEMU ?= `pwd`/$(XEN_ROOT)/../qemu-xen.git
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CONFIG_QEMU ?= $(QEMU_REMOTE)
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QEMU_TAG ?= 128de2549c5f24e4a437b86bd2e46f023976d50a
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# Mon Feb 20 16:21:47 2012 +0000
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# Intel GPU passthrough: Host bridge config space
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# Short answer -- do not enable this unless you know what you are
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# doing and are prepared for some pain.
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CONFIG_TESTS ?= y
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