mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 10:11:27 +01:00
Ian Campbell
3f857a8d12
I could have sworn I did this years ago. IIRC the need for our own copy was due to the use of io_set_eventfd which is not present in version 0.3.106. However it is in 0.3.107 the first version of which was uploaded to Debian in June 2008 (I can't find a better reference for the release date). The necessary version is available in Debian Lenny onwards and is in at least RHEL 6, Fedora 13 and OpenSuSE 11.3. The necessary version appears to not be available in RHEL 5 or SLES 11 which is why I haven't simply nuked the in tree version. This is based on tools-system-libaio.diff from the Debian packaging although I have made it optional (but default on). Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
240 lines
8.1 KiB
Makefile
240 lines
8.1 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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-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/)
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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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BISON ?= bison
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FLEX ?= flex
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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, \
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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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# -Wunused-value makes GCC 4.x too aggressive for my taste: ignoring the
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# result of any casted expression causes a warning.
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CFLAGS += -Wno-unused-value
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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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CHECK_LIB = $(EXTRA_LIB) $(PREPEND_LIB) $(APPEND_LIB)
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CHECK_INCLUDES = $(EXTRA_INCLUDES) $(PREPEND_INCLUDES) $(APPEND_INCLUDES)
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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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# Enable XSM security module (by default, Flask).
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XSM_ENABLE ?= n
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FLASK_ENABLE ?= $(XSM_ENABLE)
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# Download GIT repositories via HTTP or GIT's own protocol?
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# GIT's protocol is faster and more robust, when it works at all (firewalls
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# may block it). We make it the default, but if your GIT repository downloads
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# fail or hang, please specify GIT_HTTP=y in your environment.
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GIT_HTTP ?= n
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XEN_EXTFILES_URL=http://xenbits.xensource.com/xen-extfiles
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# All the files at that location were downloaded from elsewhere on
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# the internet. The original download URL is preserved as a comment
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# near the place in the Xen Makefiles where the file is used.
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ifeq ($(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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# 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 ?= 9b33a3e5603ecd3ceca482a72c6ff8e951afb6d2
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# Tue Nov 22 16:12:40 2011 +0000
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# qemu-xen: add vkbd support for PV on HVM guests
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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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# SeaBIOS integration is a work in progress. Before enabling this
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# option you must clone git://git.qemu.org/seabios.git/, possibly add
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# some development patches and then build it yourself before pointing
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# this variable to it (using an absolute path).
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#
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# Note that using SeaBIOS requires the use the upstream qemu as the
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# device model.
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SEABIOS_DIR ?=
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# Optional components
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XENSTAT_XENTOP ?= y
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VTPM_TOOLS ?= n
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LIBXENAPI_BINDINGS ?= n
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PYTHON_TOOLS ?= y
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OCAML_TOOLS ?= y
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CONFIG_MINITERM ?= n
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CONFIG_LOMOUNT ?= n
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CONFIG_SYSTEM_LIBAIO ?= y
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ifeq ($(OCAML_TOOLS),y)
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OCAML_TOOLS := $(shell ocamlopt -v > /dev/null 2>&1 && echo "y" || echo "n")
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endif
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