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 and TableGen.
  34 Archives := $(wildcard $(LibDir)/libLLVM*.a)
  35 SharedLibraries := $(wildcard $(LibDir)/libLLVM*$(SHLIBEXT))
  36 ExcludeFromLibLlvm := $(basename $(SharedLibraries)).a %/libLLVMTableGen.a
  37 IncludeInLibLlvm := $(filter-out $(ExcludeFromLibLlvm), $(Archives))
  38 LLVMLibsOptions := $(IncludeInLibLlvm:$(LibDir)/lib%.a=-l%)
  39 LLVMLibsPaths   := $(IncludeInLibLlvm)
  40
  41 $(LibName.SO): $(LLVMLibsPaths)
  42
  43 ifeq ($(HOST_OS),Darwin)
  44     # set dylib internal version number to llvmCore submission number
  45     ifdef LLVM_SUBMIT_VERSION
  46         LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
  47                         -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
  48                         -Wl,-compatibility_version -Wl,1
  49     endif
  50     # Include everything from the .a's into the shared library.
  51     LLVMLibsOptions    := $(LLVMLibsOptions) -all_load
  52     # extra options to override libtool defaults
  53     LLVMLibsOptions    := $(LLVMLibsOptions)  \
  54                          -Wl,-dead_strip \
  55                          -Wl,-seg1addr -Wl,0xE0000000
  56
  57     # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
  58     DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
  59     ifneq ($(DARWIN_VERS),8)
  60        LLVMLibsOptions    := $(LLVMLibsOptions)  \
  61                             -Wl,-install_name \
  62                             -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
  63     endif
  64 endif
  65
  66 ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux FreeBSD OpenBSD))
  67     # Include everything from the .a's into the shared library.
  68     LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
  69                        -Wl,--no-whole-archive
  70     # Add soname to the library.
  71     LLVMLibsOptions += -Wl,--soname,lib$(LIBRARYNAME)$(SHLIBEXT)
  72 endif
  73
  74 ifeq ($(HOST_OS),Linux)
  75     # Don't allow unresolved symbols.
  76     LLVMLibsOptions += -Wl,--no-undefined
  77 endif
  78
  79 ifeq ($(HOST_OS),SunOS)
  80     # add -z allextract ahead of other libraries on Solaris
  81     LLVMLibsOptions := -Wl,-z -Wl,allextract $(LLVMLibsOptions)
  82 endif
  83
  84 ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
  85
  86 SHLIB_STUBS := $(addprefix $(ObjDir)/, $(SHLIB_FRAG_NAMES))
  87 SHLIB_FRAGS := $(patsubst %.a.o, $(ObjDir)/%.syms.txt, $(LIBRARYNAME).a.o $(SHLIB_FRAG_NAMES))
  88 LLVMLibsOptions := $(SHLIB_STUBS) $(LLVMLibsOptions)
  89
  90 $(LibName.SO): $(SHLIB_STUBS)
  91
  92 %.syms.txt: %.a.o
  93         $(Echo) Collecting global symbols of $(notdir $*)
  94         $(Verb) $(NM_PATH) -g $< > $@
  95
  96 $(ObjDir)/$(LIBRARYNAME).exports: $(SHLIB_FRAGS) $(ObjDir)/.dir
  97         $(Echo) Generating exports for $(LIBRARYNAME)
  98         $(Verb) ($(SED) -n \
  99                         -e "s/^.* T _\([^.][^.]*\)$$/\1/p" \
 100                         -e "s/^.* [BDR] _\([^.][^.]*\)$$/\1 DATA/p" \
 101                         $(SHLIB_FRAGS) \
 102                  | sort -u) > $@
 103
 104 $(ObjDir)/$(LIBRARYNAME).a.o: $(LLVMLibsPaths) $(ObjDir)/.dir
 105         $(Echo) Linking all LLVMLibs together for $(LIBRARYNAME)
 106         $(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
 107                         -Wl,--whole-archive $(LLVMLibsPaths) \
 108                         -Wl,--no-whole-archive
 109
 110 $(ObjDir)/stdc++.a.o: $(ObjDir)/.dir
 111         $(Echo) Linking all libs together for static libstdc++.a
 112         $(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
 113                         -Wl,--whole-archive -lstdc++ \
 114                         -Wl,--no-whole-archive
 115 # FIXME: workaround to invalidate -lstdc++
 116         $(Echo) Making dummy -lstdc++ to lib
 117         $(Verb) $(AR) rc $(ToolDir)/libstdc++.dll.a
 118 # FIXME: Is install-local needed?
 119
 120 clean-local::
 121         $(Verb) $(RM) -f $(ToolDir)/libstdc++.dll.a
 122
 123 endif