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Support building for a single target architecture.

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llvm-svn: 80943
This commit is contained in:
Daniel Dunbar 2009-09-03 20:49:22 +00:00
parent ed8f32022e
commit c7b06b3edf
3 changed files with 44 additions and 6 deletions
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15
compiler-rt/Makefile
View File

@ -44,19 +44,24 @@ $(call Set,ActiveLibGen,$(ActiveObjPath)/libcompiler_rt.Generic.a)
$(call Set,ActiveLibOpt,$(ActiveObjPath)/libcompiler_rt.Optimized.a)
# The sublibraries to use for a generic version.
$(call Set,GenericInputs,$(foreach arch,$(Archs),$(ActiveObjPath)/$(arch)/libcompiler_rt.Generic.a))
$(call Set,GenericInputs,$(foreach arch,$(TargetArchs),$(ActiveObjPath)/$(arch)/libcompiler_rt.Generic.a))
# The sublibraries to use for an optimized version.
$(call Set,OptimizedInputs,$(foreach arch,$(Archs),$(ActiveObjPath)/$(arch)/libcompiler_rt.Optimized.a))
$(call Set,OptimizedInputs,$(foreach arch,$(TargetArchs),$(ActiveObjPath)/$(arch)/libcompiler_rt.Optimized.a))
# Provide top-level fat archive targets.
# Provide top-level fat archive targets. We make sure to not try to lipo if only
# building one target arch.
$(ActiveLibGen): $(GenericInputs) $(ActiveObjPath)/.dir
$(Summary) " UNIVERSAL: $(ActiveConfig): $$@"
-$(Verb) $(RM) $$@
$(Verb) $(Lipo) -create -output $$@ $(GenericInputs)
$(if $(TargetArch), \
$(Verb) $(CP) $(GenericInputs) $$@, \
$(Verb) $(Lipo) -create -output $$@ $(GenericInputs))
$(ActiveLibOpt): $(OptimizedInputs) $(ActiveObjPath)/.dir
$(Summary) " UNIVERSAL: $(ActiveConfig): $$@"
-$(Verb) $(RM) $$@
$(Verb) $(Lipo) -create -output $$@ $(OptimizedInputs)
$(if $(TargetArch), \
$(Verb) $(CP) $(GenericInputs) $$@, \
$(Verb) $(Lipo) -create -output $$@ $(OptimizedInputs))
.PRECIOUS: $(ActiveObjPath)/.dir
# Add to target lists.

30
compiler-rt/make/config.mk
View File

@ -1,6 +1,8 @@
###
# Configuration variables.
OS := $(shell uname)
# Assume make is always run from top-level of source directory. Note
# than an Apple style build overrides these variables later in the
# makefile.
@ -8,8 +10,20 @@ ProjSrcRoot := $(shell pwd)
ProjObjRoot := $(ProjSrcRoot)
Configs := Debug Release Profile
# The full list of architectures we support.
Archs := i386 ppc x86_64
# If TargetArch is defined, only build for that architecture (and don't use
# -arch).
ifeq ($(OS), Darwin)
TargetArch :=
TargetArchs := $(Archs)
else
TargetArch := i386
TargetArchs := $(TargetArch)
endif
Common.CFLAGS := -Wall -Werror
# These names must match the configs, see GetArgs function.
@ -17,10 +31,23 @@ Debug.CFLAGS := -g
Release.CFLAGS := -O3 -fomit-frame-pointer
Profile.CFLAGS := -pg -g
# Function: GetArchArgs arch
#
# Return the compiler flags for the given arch.
ifeq ($(OS), Darwin)
GetArchArgs = -arch $(1)
else
# Check that we are only trying to build the target arch.
GetArchArgs = $(if $(subst $(TargetArch),,$(1)), \
$(error "Invalid configuration, no -arch support: $(1)"), \
)
endif
# Function: GetArgs config arch
#
# Return the compiler flags for the given config & arch.
GetArgs = $(if $($(1).CFLAGS),$(Common.CFLAGS) $($(1).CFLAGS) -arch $(2), \
GetArgs = $(if $($(1).CFLAGS), \
$(Common.CFLAGS) $($(1).CFLAGS) $(call GetArchArgs,$(2)), \
$(error "Invalid configuration: $(1)"))
###
@ -37,6 +64,7 @@ RANLIB := ranlib
# FIXME: Remove these pipes once ranlib errors are fixed.
RANLIB.Flags := 2> /dev/null
LIPO := lipo
CP := cp
###
# Automatic and derived variables.

5
compiler-rt/make/subdir.mk
View File

@ -23,6 +23,11 @@ else
ArchsToTraverse := $(OnlyArchs)
endif
# If we are only targetting a single arch, only traverse that.
ifneq ($(TargetArch),)
ArchsToTraverse := $(filter $(TargetArch), $(ArchsToTraverse))
endif
$(foreach config,$(ConfigsToTraverse), \
$(foreach arch,$(ArchsToTraverse), \
$(eval $(call CNA_subdir_template,$(config),$(arch),$(Dir)))))