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 core lto mc mcdisassembler support
13 LINK_LIBS_IN_SHARED := 1
16 EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
18 include $(LEVEL)/Makefile.common
20 ifeq ($(HOST_OS),Darwin)
21 # Special hack to allow libLTO to have an offset version number.
22 ifdef LLVM_LTO_VERSION_OFFSET
23 LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \
24 $(LLVM_LTO_VERSION_OFFSET))
26 LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
29 # set dylib internal version number to llvmCore submission number
30 ifdef LLVM_SUBMIT_VERSION
31 LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
32 -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
33 -Wl,-compatibility_version -Wl,1
36 # If we're doing an Apple-style build, add the LTO object path.
38 TempFile := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX)
39 LLVMLibsOptions := $(LLVMLibsOptions) \
40 -Wl,-object_path_lto -Wl,$(TempFile)