tools/llvm-shlib/Makefile

   1 ##===- tools/shlib/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 = LLVM-$(LLVMVersion)
  12
  13 NO_BUILD_ARCHIVE = 1
  14 LINK_LIBS_IN_SHARED = 1
  15 SHARED_LIBRARY = 1
  16
  17 include $(LEVEL)/Makefile.common
  18
  19 # Include all archives in libLLVM.(so|dylib) except the ones that have
  20 # their own dynamic libraries.
  21 Archives := $(wildcard $(LibDir)/libLLVM*.a)
  22 SharedLibraries := $(wildcard $(LibDir)/libLLVM*$(SHLIBEXT))
  23 IncludeInLibLlvm := $(filter-out $(basename $(SharedLibraries)).a, $(Archives))
  24 LLVMLibsOptions := $(IncludeInLibLlvm:$(LibDir)/lib%.a=-l%)
  25 LLVMLibsPaths   := $(IncludeInLibLlvm)
  26
  27 $(LibName.SO): $(LLVMLibsPaths)
  28
  29 ifeq ($(HOST_OS),Darwin)
  30     # set dylib internal version number to llvmCore submission number
  31     ifdef LLVM_SUBMIT_VERSION
  32         LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
  33                         -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
  34                         -Wl,-compatibility_version -Wl,1
  35     endif
  36     # Include everything from the .a's into the shared library.
  37     LLVMLibsOptions    := $(LLVMLibsOptions) -all_load
  38     # extra options to override libtool defaults
  39     LLVMLibsOptions    := $(LLVMLibsOptions)  \
  40                          -avoid-version \
  41                          -Wl,-dead_strip \
  42                          -Wl,-seg1addr -Wl,0xE0000000
  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    := $(LLVMLibsOptions)  \
  48                             -Wl,-install_name \
  49                             -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
  50     endif
  51 endif
  52
  53 ifeq ($(HOST_OS), Linux)
  54     # Include everything from the .a's into the shared library.
  55     LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
  56                        -Wl,--no-whole-archive
  57     # Warn if we'll need to modify the text segment when loading libLLVM.so.
  58     LLVMLibsOptions += -Wl,--warn-shared-textrel
  59     # Don't allow unresolved symbols.
  60     LLVMLibsOptions += -Wl,--no-undefined
  61     ifneq ($(ARCH), ARM)
  62         # ARM's shared libgcc omits several of the __sync functions that are
  63         # present in the static libgcc, so we also link in the static gcc.  This
  64         # is described at http://gcc.gnu.org/PR40133.
  65         LLVMLibsOptions += -lgcc
  66     endif
  67 endif