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     # It is needed to force static-stdc++.a linked.
  24     # FIXME: It should be omitted when configure detects system's stdc++.dll.
  25     SHLIB_FRAG_NAMES += stdc++.a.o
  26
  27 endif
  28
  29 include $(LEVEL)/Makefile.common
  30
  31 # Include all archives in libLLVM.(so|dylib) except the ones that have
  32 # their own dynamic libraries.
  33 Archives := $(wildcard $(LibDir)/libLLVM*.a)
  34 SharedLibraries := $(wildcard $(LibDir)/libLLVM*$(SHLIBEXT))
  35 IncludeInLibLlvm := $(filter-out $(basename $(SharedLibraries)).a, $(Archives))
  36 LLVMLibsOptions := $(IncludeInLibLlvm:$(LibDir)/lib%.a=-l%)
  37 LLVMLibsPaths   := $(IncludeInLibLlvm)
  38
  39 $(LibName.SO): $(LLVMLibsPaths)
  40
  41 ifeq ($(HOST_OS),Darwin)
  42     # set dylib internal version number to llvmCore submission number
  43     ifdef LLVM_SUBMIT_VERSION
  44         LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
  45                         -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
  46                         -Wl,-compatibility_version -Wl,1
  47     endif
  48     # Include everything from the .a's into the shared library.
  49     LLVMLibsOptions    := $(LLVMLibsOptions) -all_load
  50     # extra options to override libtool defaults
  51     LLVMLibsOptions    := $(LLVMLibsOptions)  \
  52                          -Wl,-dead_strip \
  53                          -Wl,-seg1addr -Wl,0xE0000000
  54
  55     # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
  56     DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
  57     ifneq ($(DARWIN_VERS),8)
  58        LLVMLibsOptions    := $(LLVMLibsOptions)  \
  59                             -Wl,-install_name \
  60                             -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
  61     endif
  62 endif
  63
  64 ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux FreeBSD OpenBSD))
  65     # Include everything from the .a's into the shared library.
  66     LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
  67                        -Wl,--no-whole-archive
  68 endif
  69
  70 ifeq ($(HOST_OS),Linux)
  71     # Don't allow unresolved symbols.
  72     LLVMLibsOptions += -Wl,--no-undefined
  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