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