1 ##===- tools/lto/Makefile ----------------------------------*- Makefile -*-===##
3 # The LLVM Compiler Infrastructure
5 # This file is distributed under the University of Illinois Open Source
6 # License. See LICENSE.TXT for details.
8 ##===----------------------------------------------------------------------===##
12 LINK_COMPONENTS := all-targets ipo scalaropts linker bitreader bitwriter \
13 mcdisassembler vectorize
14 LINK_LIBS_IN_SHARED := 1
17 EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
19 include $(LEVEL)/Makefile.common
21 ifdef LLVM_VERSION_INFO
22 CXX.Flags += -DLLVM_VERSION_INFO='"$(LLVM_VERSION_INFO)"'
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))
31 LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
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
40 # extra options to override libtool defaults
41 LLVMLibsOptions := $(LLVMLibsOptions) \
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 := $(LLVMLibsOptions) \
49 -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
52 # If we're doing an Apple-style build, add the LTO object path.
54 TempFile := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX)
55 LLVMLibsOptions := $(LLVMLibsOptions) \
56 -Wl,-object_path_lto -Wl,$(TempFile)