forked from OSchip/llvm-project
115 lines
3.9 KiB
Makefile
115 lines
3.9 KiB
Makefile
##===- clang/runtime/Makefile ------------------------------*- Makefile -*-===##
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#
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# The LLVM Compiler Infrastructure
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#
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# This file is distributed under the University of Illinois Open Source
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# License. See LICENSE.TXT for details.
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#
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##===----------------------------------------------------------------------===##
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#
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# This file defines support for building the Clang runtime libraries (which are
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# implemented by compiler-rt) and placing them in the proper locations in the
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# Clang resources directory (i.e., where the driver expects them).
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#
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##===----------------------------------------------------------------------===##
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CLANG_LEVEL := ..
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include $(CLANG_LEVEL)/Makefile
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CLANG_VERSION := $(word 3,$(shell grep "CLANG_VERSION " \
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$(PROJ_OBJ_DIR)/$(CLANG_LEVEL)/include/clang/Basic/Version.inc))
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ResourceDir := $(PROJ_OBJ_ROOT)/$(BuildMode)/lib/clang/$(CLANG_VERSION)
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PROJ_resources := $(DESTDIR)$(PROJ_prefix)/lib/clang/$(CLANG_VERSION)
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ResourceLibDir := $(ResourceDir)/lib
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PROJ_resources_lib := $(PROJ_resources)/lib
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# Expect compiler-rt to be in llvm/projects/compiler-rt
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COMPILERRT_SRC_ROOT := $(LLVM_SRC_ROOT)/projects/compiler-rt
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# Additional flags to pass to Clang.
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CLANG_CCFLAGS := -no-integrated-as
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ifneq ($(CLANG_NO_RUNTIME),1)
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ifeq ($(shell test -d $(COMPILERRT_SRC_ROOT) && echo OK),OK)
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# Select the compiler-rt configuration to use, and install directory.
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#
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# FIXME: Eventually, we want some kind of configure support for this. We want to
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# build/install runtime libraries for as many targets as clang was configured to
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# support.
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RuntimeDirs :=
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ifeq ($(OS),Darwin)
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RuntimeDirs += darwin
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RuntimeLibrary.darwin.Configs = eprintf 10.4 armv6 cc_kext
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# On Darwin, fake Clang into using the iOS assembler (since compiler-rt wants to
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# build ARM bits).
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ifeq ($(OS),Darwin)
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CLANG_CCFLAGS += -ccc-install-dir \
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/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/
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endif
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endif
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# Rule to build the compiler-rt libraries we need.
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#
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# We build all the libraries in a single shot to avoid recursive make as much as
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# possible.
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BuildRuntimeLibraries:
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$(Verb) $(MAKE) -C $(COMPILERRT_SRC_ROOT) \
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ProjSrcRoot=$(COMPILERRT_SRC_ROOT) \
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ProjObjRoot=$(PROJ_OBJ_DIR) \
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CC="$(ToolDir)/clang $(CLANG_CCFLAGS)" \
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$(RuntimeDirs:%=clang_%)
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.PHONY: BuildRuntimeLibraries
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CleanRuntimeLibraries:
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$(Verb) $(MAKE) -C $(COMPILERRT_SRC_ROOT) \
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ProjSrcRoot=$(COMPILERRT_SRC_ROOT) \
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ProjObjRoot=$(PROJ_OBJ_DIR) \
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clean
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.PHONY: CleanRuntimeLibraries
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$(PROJ_resources_lib):
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$(Verb) $(MKDIR) $@
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# Expand rules for copying/installing each individual library. We can't use
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# implicit rules here because we need to match against multiple things.
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define RuntimeLibraryTemplate
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$(PROJ_OBJ_DIR)/clang_$1/%/libcompiler_rt.a: BuildRuntimeLibraries
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@true
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.PRECIOUS: $(PROJ_OBJ_DIR)/clang_$1/%/libcompiler_rt.a
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# Rule to copy the libraries to their resource directory location.
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$(ResourceLibDir)/$1/libclang_rt.%.a: \
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$(PROJ_OBJ_DIR)/clang_$1/%/libcompiler_rt.a \
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$(ResourceLibDir)/$1/.dir
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$(Echo) Copying runtime library $1/$$* to build dir
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$(Verb) cp $(PROJ_OBJ_DIR)/clang_$1/$$*/libcompiler_rt.a $$@
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RuntimeLibrary.$1: \
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$(RuntimeLibrary.$1.Configs:%=$(ResourceLibDir)/$1/libclang_rt.%.a)
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.PHONY: RuntimeLibrary.$1
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$(PROJ_resources_lib)/$1: $(PROJ_resources_lib)
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$(Verb) $(MKDIR) $$@
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$(PROJ_resources_lib)/$1/libclang_rt.%.a: \
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$(ResourceLibDir)/$1/libclang_rt.%.a | $(PROJ_resources_lib)/$1
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$(Echo) Installing compiler runtime library: $1/$$*
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$(Verb) $(DataInstall) $$< $(PROJ_resources_lib)/$1
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# Rule to install runtime libraries.
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RuntimeLibraryInstall.$1: \
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$(RuntimeLibrary.$1.Configs:%=$(PROJ_resources_lib)/$1/libclang_rt.%.a)
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.PHONY: RuntimeLibraryInstall.$1
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endef
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$(foreach lib,$(RuntimeDirs), $(eval $(call RuntimeLibraryTemplate,$(lib))))
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# Hook into the standard Makefile rules.
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all-local:: $(RuntimeDirs:%=RuntimeLibrary.%)
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install-local:: $(RuntimeDirs:%=RuntimeLibraryInstall.%)
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clean-local:: CleanRuntimeLibraries
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endif
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endif
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