tools/lto/Makefile

   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                    lto 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