1 ##===- tools/lto/Makefile ----------------------------------*- Makefile -*-===## 2 # 3 # The LLVM Compiler Infrastructure 4 # 5 # This file is distributed under the University of Illinois Open Source 6 # License. See LICENSE.TXT for details. 7 # 8 ##===----------------------------------------------------------------------===## 9 10 LEVEL := ../.. 11 LIBRARYNAME := LTO 12 LINK_COMPONENTS := all-targets ipo scalaropts linker bitreader bitwriter \ 13 mcdisassembler vectorize 14 LINK_LIBS_IN_SHARED := 1 15 SHARED_LIBRARY := 1 16 17 EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports 18 19 include $(LEVEL)/Makefile.common 20 21 ifdef LLVM_VERSION_INFO 22 CXX.Flags += -DLLVM_VERSION_INFO='"$(LLVM_VERSION_INFO)"' 23 endif 24 25 ifeq ($(HOST_OS),Darwin) 26 # Special hack to allow libLTO to have an offset version number. 27 ifdef LLVM_LTO_VERSION_OFFSET 28 LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \ 29 $(LLVM_LTO_VERSION_OFFSET)) 30 else 31 LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION) 32 endif 33 34 # set dylib internal version number to llvmCore submission number 35 ifdef LLVM_SUBMIT_VERSION 36 LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \ 37 -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \ 38 -Wl,-compatibility_version -Wl,1 39 endif 40 # extra options to override libtool defaults 41 LLVMLibsOptions := $(LLVMLibsOptions) \ 42 -Wl,-dead_strip 43 44 # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line 45 DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/') 46 ifneq ($(DARWIN_VERS),8) 47 LLVMLibsOptions := $(LLVMLibsOptions) \ 48 -Wl,-install_name \ 49 -Wl,"@rpath/lib$(LIBRARYNAME)$(SHLIBEXT)" 50 endif 51 52 # If we're doing an Apple-style build, add the LTO object path. 53 ifeq ($(RC_XBS),YES) 54 TempFile := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX) 55 LLVMLibsOptions := $(LLVMLibsOptions) \ 56 -Wl,-object_path_lto -Wl,$(TempFile) 57 endif 58 endif 59
