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    := $(LLVMLibsOptions) -all_load
  52 endif
  53
  54 ifeq ($(HOST_OS), $(filter $(HOST_OS), DragonFly Linux FreeBSD GNU/kFreeBSD OpenBSD GNU Bitrig))
  55     # Include everything from the .a's into the shared library.
  56     LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
  57                        -Wl,--no-whole-archive
  58 endif
  59
  60 ifeq ($(HOST_OS), $(filter $(HOST_OS), DragonFly Linux FreeBSD GNU/kFreeBSD GNU))
  61     # Add soname to the library.
  62     LLVMLibsOptions += -Wl,--soname,lib$(LIBRARYNAME)$(SHLIBEXT)
  63 endif
  64
  65 ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux GNU GNU/kFreeBSD))
  66     # Don't allow unresolved symbols.
  67     LLVMLibsOptions += -Wl,--no-undefined
  68 endif
  69
  70 ifeq ($(HOST_OS),SunOS)
  71     # add -z allextract ahead of other libraries on Solaris
  72     LLVMLibsOptions := -Wl,-z -Wl,allextract $(LLVMLibsOptions)
  73 endif
  74
  75 ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
  76
  77 SHLIB_STUBS := $(addprefix $(ObjDir)/, $(SHLIB_FRAG_NAMES))
  78 SHLIB_FRAGS := $(patsubst %.a.o, $(ObjDir)/%.syms.txt, $(LIBRARYNAME).a.o $(SHLIB_FRAG_NAMES))
  79 LLVMLibsOptions := $(SHLIB_STUBS) $(LLVMLibsOptions)
  80
  81 $(LibName.SO): $(SHLIB_STUBS)
  82
  83 %.syms.txt: %.a.o
  84         $(Echo) Collecting global symbols of $(notdir $*)
  85         $(Verb) $(NM_PATH) -g $< > $@
  86
  87 $(ObjDir)/$(LIBRARYNAME).exports: $(SHLIB_FRAGS) $(ObjDir)/.dir
  88         $(Echo) Generating exports for $(LIBRARYNAME)
  89         $(Verb) ($(SED) -n \
  90                         -e "s/^.* T _\([^.][^.]*\)$$/\1/p" \
  91                         -e "s/^.* [BDR] _\([^.][^.]*\)$$/\1 DATA/p" \
  92                         $(SHLIB_FRAGS) \
  93                  | sort -u) > $@
  94
  95 $(ObjDir)/$(LIBRARYNAME).a.o: $(LLVMLibsPaths) $(ObjDir)/.dir
  96         $(Echo) Linking all LLVMLibs together for $(LIBRARYNAME)
  97         $(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
  98                         -Wl,--whole-archive $(LLVMLibsPaths) \
  99                         -Wl,--no-whole-archive
 100
 101 $(ObjDir)/stdc++.a.o: $(ObjDir)/.dir
 102         $(Echo) Linking all libs together for static libstdc++.a
 103         $(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
 104                         -Wl,--whole-archive -lstdc++ \
 105                         -Wl,--no-whole-archive
 106 # FIXME: workaround to invalidate -lstdc++
 107         $(Echo) Making dummy -lstdc++ to lib
 108         $(Verb) $(AR) rc $(ToolDir)/libstdc++.dll.a
 109 # FIXME: Is install-local needed?
 110
 111 clean-local::
 112         $(Verb) $(RM) -f $(ToolDir)/libstdc++.dll.a
 113
 114 endif