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32a35e3285
For this to work, we have to encode it in the build variables and use it from llvm-config.cpp. I've tried to do this reasonably cleanly, but the code for llvm-config.cpp is pretty strange. However, with this, llvm-config stops giving the wrong answer when using LLVM_LIBDIR_SUFFIX. Note that the configure+make build just sets this to an empty string as that build system has zero support for multilib of any form. I'm not planning to add support there either, but this should leave a path for anyone that wanted to. llvm-svn: 224921
78 lines
2.7 KiB
Makefile
78 lines
2.7 KiB
Makefile
##===- tools/llvm-config/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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LEVEL := ../..
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TOOLNAME := llvm-config
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USEDLIBS := LLVMSupport.a
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# We generate sources in the build directory, make sure it is in the include
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# paths.
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INCLUDE_BUILD_DIR := 1
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# This tool has no plugins, optimize startup time.
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TOOL_NO_EXPORTS := 1
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# Note that we have to use lazy expansion here.
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BUILDVARIABLES_SRCPATH = $(PROJ_SRC_ROOT)/tools/$(TOOLNAME)/BuildVariables.inc.in
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BUILDVARIABLES_OBJPATH = $(ObjDir)/BuildVariables.inc
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BUILT_SOURCES = $(BUILDVARIABLES_OBJPATH)
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include $(LEVEL)/Makefile.common
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# Combine preprocessor flags (except for -I) and CXX flags.
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SUB_CPPFLAGS := ${CPP.BaseFlags}
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SUB_CFLAGS := ${CPP.BaseFlags} ${C.Flags}
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SUB_CXXFLAGS := ${CPP.BaseFlags} ${CXX.Flags}
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# Override LIBS with TARGET's LIBS for cross compilation.
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# FIXME: Host's llvm-config is not generated. It's for target's.
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ifneq ($(TARGET_LIBS), )
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LLVM_SYSTEM_LIBS := $(TARGET_LIBS)
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else
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LLVM_SYSTEM_LIBS := $(LIBS)
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endif
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# This is blank for now. We need to be careful about adding stuff here:
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# LDFLAGS tend not to be portable, and we don't currently require the
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# user to use libtool when linking against LLVM.
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SUB_LDFLAGS :=
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$(ObjDir)/BuildVariables.inc: $(BUILDVARIABLES_SRCPATH) Makefile $(ObjDir)/.dir
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$(Echo) "Building llvm-config BuildVariables.inc file."
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$(Verb) $(ECHO) 's/@LLVM_SRC_ROOT@/$(subst /,\/,$(LLVM_SRC_ROOT))/' \
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> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_OBJ_ROOT@/$(subst /,\/,$(LLVM_OBJ_ROOT))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_CPPFLAGS@/$(subst /,\/,$(SUB_CPPFLAGS))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_CFLAGS@/$(subst /,\/,$(SUB_CFLAGS))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_CXXFLAGS@/$(subst /,\/,$(SUB_CXXFLAGS))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_LDFLAGS@/$(subst /,\/,$(SUB_LDFLAGS))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_BUILDMODE@/$(subst /,\/,$(BuildMode))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_LIBDIR_SUFFIX@//' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_SYSTEM_LIBS@/$(subst /,\/,$(LLVM_SYSTEM_LIBS))/' \
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>> temp.sed
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$(Verb) $(ECHO) 's/@LLVM_TARGETS_BUILT@/$(subst /,\/,$(TARGETS_TO_BUILD))/' \
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>> temp.sed
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$(Verb) $(SED) -f temp.sed < $< > $@
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$(Verb) $(RM) temp.sed
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# When cross-compiling, install a version of llvm-config that runs on the host.
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ifeq ($(LLVM_CROSS_COMPILING),1)
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install:: $(DESTDIR)$(PROJ_bindir)
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$(Echo) Installing llvm-config-host
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$(Verb) $(ProgInstall) $(BuildLLVMToolDir)/llvm-config \
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$(DESTDIR)$(PROJ_bindir)/$(program_prefix)llvm-config-host
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endif
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