Add support for "platform" configurations, which define a suite of compiler-rt
libraries to generate.
- Each library may be built with different flags and for different
architectures, and there is support for building Darwin style fat archives.
- Uses an ambituous amount of make programming, but should be hidden to
users and developers.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@93720 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile b/Makefile
index a5c0be3..5a6f017 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
SubDirs := lib
# Set default rule before anything else.
-all::
+all: help
include make/config.mk
include make/util.mk
@@ -32,14 +32,22 @@
@echo " VERBOSE=1: Use to show all commands [default=0]"
@echo
@echo "Available targets:"
- @echo " clean: clean all configurations"
- @echo " test: run unit tests"
- @echo " all: build all configurations"
+ @echo " <platform name>: build the libraries for 'platform'"
+ @echo " clean: clean all configurations"
+ @echo " test: run unit tests"
+ @echo
+ @echo " info-platforms: list available platforms"
+ @echo " help-devel: print additional help for developers"
@echo
help-devel: help
@echo "Development targets:"
+ @echo " <platform name>-<config name>:"
+ @echo " build the libraries for a single platform config"
+ @echo " <platform name>-<config name>-<arch name>:"
+ @echo " build the libraries for a single config and arch"
@echo " info-functions: list available compiler-rt functions"
+ @echo " help-hidden: print help for Makefile debugging"
@echo
help-hidden: help-devel
@@ -59,6 +67,15 @@
printf " %-20s - available in (%s)\n" $(fn)\
"$(foreach key,$(AvailableIn.$(fn)),$($(key).Dir))";)
+info-platforms:
+ @echo "compiler-rt Available Platforms"
+ @echo
+ @echo "Platforms:"
+ @$(foreach key,$(PlatformKeys),\
+ printf " %s - from '%s'\n" $($(key).Name) $($(key).Path);\
+ printf " %s\n" "$($(key).Description)";\
+ printf " Configurations: %s\n\n" "$($(key).Configs)";)
+
# Provide default clean target which is extended by other templates.
.PHONY: clean
clean::
@@ -88,6 +105,128 @@
include make/subdir.mk
include make/lib_info.mk
include make/lib_util.mk
+include make/lib_platforms.mk
+
+###
+# Define Platform Rules
+
+define PerPlatform_template
+$(call Set,Tmp.Key,$(1))
+$(call Set,Tmp.Name,$($(Tmp.Key).Name))
+$(call Set,Tmp.Configs,$($(Tmp.Key).Configs))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name))
+
+# Top-Level Platform Target
+$(Tmp.Name):: $(Tmp.Configs:%=$(Tmp.ObjPath)/%/libcompiler_rt.a)
+.PHONY: $(Tmp.Name)
+
+clean::
+ $(Verb) rm -rf $(Tmp.ObjPath)
+
+# Per-Config Libraries
+$(foreach config,$(Tmp.Configs),\
+ $(call PerPlatformConfig_template,$(config)))
+endef
+
+define PerPlatformConfig_template
+$(call Set,Tmp.Config,$(1))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config))
+
+# Compute the archs to build, depending on whether this is a universal build or
+# not.
+$(call Set,Tmp.ArchsToBuild,\
+ $(if $(call IsDefined,$(Tmp.Key).UniversalArchs),\
+ $($(Tmp.Key).UniversalArchs),\
+ $(call VarOrDefault,$(Tmp.Key).Arch.$(Tmp.Config),$($(Tmp.Key).Arch))))
+
+# Copy or lipo to create the per-config library.
+$(call Set,Tmp.Inputs,$(Tmp.ArchsToBuild:%=$(Tmp.ObjPath)/%/libcompiler_rt.a))
+$(Tmp.ObjPath)/libcompiler_rt.a: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
+ $(Summary) " FINAL-ARCHIVE: $(Tmp.Name)/$(Tmp.Config): $$@"
+ -$(Verb) $(RM) $$@
+ $(if $(call streq,1,$(words $(Tmp.ArchsToBuild))), \
+ $(Verb) $(CP) $(Tmp.Inputs) $$@, \
+ $(Verb) $(LIPO) -create -output $$@ $(Tmp.Inputs))
+.PRECIOUS: $(Tmp.ObjPath)/.dir
+
+# Per-Config Targets
+$(Tmp.Name)-$(Tmp.Config):: $(Tmp.ObjPath)/libcompiler_rt.a
+.PHONY: $(Tmp.Name)-$(Tmp.Config)
+
+# Per-Config-Arch Libraries
+$(foreach arch,$(Tmp.ArchsToBuild),\
+ $(call PerPlatformConfigArch_template,$(arch)))
+endef
+
+define PerPlatformConfigArch_template
+$(call Set,Tmp.Arch,$(1))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch))
+$(call Set,Tmp.Functions,$(strip \
+ $(call GetCNAVar,FUNCTIONS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.Optimized,$(strip \
+ $(call GetCNAVar,OPTIMIZED,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.AR,$(strip \
+ $(call GetCNAVar,AR,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.ARFLAGS,$(strip \
+ $(call GetCNAVar,ARFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.RANLIB,$(strip \
+ $(call GetCNAVar,RANLIB,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.RANLIBFLAGS,$(strip \
+ $(call GetCNAVar,RANLIBFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+
+# Compute the object inputs for this library.
+$(call Set,Tmp.Inputs,\
+ $(foreach fn,$(sort $(Tmp.Functions)),\
+ $(call Set,Tmp.FnDir,\
+ $(call SelectFunctionDir,$(Tmp.Config),$(Tmp.Arch),$(fn),$(Tmp.Optimized)))\
+ $(Tmp.ObjPath)/$(Tmp.FnDir)/$(fn).o))
+$(Tmp.ObjPath)/libcompiler_rt.a: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
+ $(Summary) " ARCHIVE: $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$@"
+ -$(Verb) $(RM) $$@
+ $(Verb) $(Tmp.AR) $(Tmp.ARFLAGS) $$@ $(Tmp.Inputs)
+ $(Verb) $(Tmp.RANLIB) $(Tmp.RANLIBFLAGS) $$@
+.PRECIOUS: $(Tmp.ObjPath)/.dir
+
+# Per-Config-Arch Targets
+$(Tmp.Name)-$(Tmp.Config)-$(Tmp.Arch):: $(Tmp.ObjPath)/libcompiler_rt.a
+.PHONY: $(Tmp.Name)-$(Tmp.Config)-$(Tmp.Arch)
+
+# Per-Config-Arch-SubDir Objects
+$(foreach key,$(SubDirKeys),\
+ $(call PerPlatformConfigArchSubDir_template,$(key)))
+endef
+
+define PerPlatformConfigArchSubDir_template
+$(call Set,Tmp.SubDirKey,$(1))
+$(call Set,Tmp.SubDir,$($(Tmp.SubDirKey).Dir))
+$(call Set,Tmp.SrcPath,$(ProjSrcRoot)/$(Tmp.SubDir))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch)/$(Tmp.SubDirKey))
+$(call Set,Tmp.Dependencies,$($(Tmp.SubDirKey).Dependencies))
+$(call Set,Tmp.CC,$(strip \
+ $(call GetCNAVar,CC,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.CFLAGS,$(strip \
+ $(call GetCNAVar,CFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.ArchFlag,$(strip \
+ $(if $(call IsDefined,$(Tmp.Key).UniversalArchs),-arch $(Tmp.Arch),)))
+
+$(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.s $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
+ $(Summary) " ASSEMBLE: $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
+ $(Verb) $(Tmp.CC) $(Tmp.ArchFlag) $(Tmp.CFLAGS) -c -o $$@ $$<
+$(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.S $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
+ $(Summary) " ASSEMBLE: $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
+ $(Verb) $(Tmp.CC) $(Tmp.ArchFlag) $(Tmp.CFLAGS) -c -o $$@ $$<
+$(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.c $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
+ $(Summary) " COMPILE: $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
+ $(Verb) $(Tmp.CC) $(Tmp.ArchFlag) $(Tmp.CFLAGS) -c -o $$@ $$<
+.PRECIOUS: $(Tmp.ObjPath)/.dir
+
+endef
+
+# Run templates.
+$(foreach key,$(PlatformKeys),\
+ $(eval $(call PerPlatform_template,$(key))))
+
+###
ifneq ($(DEBUGMAKE),)
$(info MAKE: Done processing Makefile)