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
  12 LIBRARYNAME = LLVM-$(LLVMVersion)
  13
  14 NO_BUILD_ARCHIVE = 1
  15 LINK_LIBS_IN_SHARED = 1
  16 SHARED_LIBRARY = 1
  17
  18 include $(LEVEL)/Makefile.config
  19
  20 ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
  21   EXPORTED_SYMBOL_FILE = $(ObjDir)/$(LIBRARYNAME).exports
  22
  23   ifeq (1,$(ENABLE_EMBED_STDCXX))
  24     # It is needed to force static-stdc++.a linked.
  25     SHLIB_FRAG_NAMES += stdc++.a.o
  26   endif
  27
  28 endif
  29
  30 include $(LEVEL)/Makefile.common
  31
  32 # Include all archives in libLLVM.(so|dylib) except the ones that have
  33 # their own dynamic libraries.
  34 Archives := $(wildcard $(LibDir)/libLLVM*.a)
  35 SharedLibraries := $(wildcard $(LibDir)/libLLVM*$(SHLIBEXT))
  36 IncludeInLibLlvm := $(filter-out $(basename $(SharedLibraries)).a, $(Archives))
  37 LLVMLibsOptions := $(IncludeInLibLlvm:$(LibDir)/lib%.a=-l%)
  38 LLVMLibsPaths   := $(IncludeInLibLlvm)
  39
  40 $(LibName.SO): $(LLVMLibsPaths)
  41
  42 ifeq ($(HOST_OS),Darwin)
  43     # set dylib internal version number to llvmCore submission number
  44     ifdef LLVM_SUBMIT_VERSION
  45         LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
  46                         -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
  47                         -Wl,-compatibility_version -Wl,1
  48     endif
  49     # Include everything from the .a's into the shared library.
  50     LLVMLibsOptions    := $(LLVMLibsOptions) -all_load
  51     # extra options to override libtool defaults
  52     LLVMLibsOptions    := $(LLVMLibsOptions)  \
  53                          -Wl,-dead_strip \
  54                          -Wl,-seg1addr -Wl,0xE0000000
  55
  56     # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
  57     DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
  58     ifneq ($(DARWIN_VERS),8)
  59        LLVMLibsOptions    := $(LLVMLibsOptions)  \
  60                             -Wl,-install_name \
  61                             -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
  62     endif
  63 endif
  64
  65 ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux FreeBSD OpenBSD))
  66     # Include everything from the .a's into the shared library.
  67     LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
  68                        -Wl,--no-whole-archive
  69 endif
  70
  71 ifeq ($(HOST_OS),Linux)
  72     # Don't allow unresolved symbols.
  73     LLVMLibsOptions += -Wl,--no-undefined
  74 endif
  75
  76 ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
  77
  78 SHLIB_STUBS := $(addprefix $(ObjDir)/, $(SHLIB_FRAG_NAMES))
  79 SHLIB_FRAGS := $(patsubst %.a.o, $(ObjDir)/%.syms.txt, $(LIBRARYNAME).a.o $(SHLIB_FRAG_NAMES))
  80 LLVMLibsOptions := $(SHLIB_STUBS) $(LLVMLibsOptions)
  81
  82 $(LibName.SO): $(SHLIB_STUBS)
  83
  84 %.syms.txt: %.a.o
  85         $(Echo) Collecting global symbols of $(notdir $*)
  86         $(Verb) $(NM_PATH) -g $< > $@
  87
  88 $(ObjDir)/$(LIBRARYNAME).exports: $(SHLIB_FRAGS) $(ObjDir)/.dir
  89         $(Echo) Generating exports for $(LIBRARYNAME)
  90         $(Verb) ($(SED) -n \
  91                         -e "s/^.* T _\([^.][^.]*\)$$/\1/p" \
  92                         -e "s/^.* [BDR] _\([^.][^.]*\)$$/\1 DATA/p" \
  93                         $(SHLIB_FRAGS) \
  94                  | sort -u) > $@
  95
  96 $(ObjDir)/$(LIBRARYNAME).a.o: $(LLVMLibsPaths) $(ObjDir)/.dir
  97         $(Echo) Linking all LLVMLibs together for $(LIBRARYNAME)
  98         $(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
  99                         -Wl,--whole-archive $(LLVMLibsPaths) \
 100                         -Wl,--no-whole-archive
 101
 102 $(ObjDir)/stdc++.a.o: $(ObjDir)/.dir
 103         $(Echo) Linking all libs together for static libstdc++.a
 104         $(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
 105                         -Wl,--whole-archive -lstdc++ \
 106                         -Wl,--no-whole-archive
 107 # FIXME: workaround to invalidate -lstdc++
 108         $(Echo) Making dummy -lstdc++ to lib
 109         $(Verb) $(AR) rc $(ToolDir)/libstdc++.dll.a
 110 # FIXME: Is install-local needed?
 111
 112 clean-local::
 113         $(Verb) $(RM) -f $(ToolDir)/libstdc++.dll.a
 114
 115 endif