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 10LEVEL := ../.. 11LIBRARYNAME := LTO 12LINK_COMPONENTS := all-targets core lto mc mcdisassembler support 13LINK_LIBS_IN_SHARED := 1 14SHARED_LIBRARY := 1 15 16EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports 17 18include $(LEVEL)/Makefile.common 19 20ifeq ($(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)) 25 else 26 LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION) 27 endif 28 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).$(LLVM_SUBMIT_SUBVERSION) \ 33 -Wl,-compatibility_version -Wl,1 34 endif 35 36 # If we're doing an Apple-style build, add the LTO object path. 37 ifeq ($(RC_XBS),YES) 38 TempFile := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX) 39 LLVMLibsOptions := $(LLVMLibsOptions) \ 40 -Wl,-object_path_lto -Wl,$(TempFile) 41 endif 42endif 43