libgcc/config/t-slibgcc-darwin

   1 # Build a shared libgcc library with the darwin linker.
   2 SHLIB_SOVERSION = 1
   3 SHLIB_VERSTRING = -compatibility_version $(SHLIB_SOVERSION) -current_version $(SHLIB_SOVERSION).0
   4 SHLIB_EXT = .dylib
   5 SHLIB_SUFFIX = `if test @multilib_dir@ = ppc64 ; then echo _@multilib_dir@ ; fi`
   6 SHLIB_INSTALL_NAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_SOVERSION)$(SHLIB_EXT)
   7 SHLIB_SONAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT)
   8 SHLIB_SOLINK = @shlib_base_name@.so
   9 SHLIB_MAP = @shlib_map_file@
  10 SHLIB_OBJS = @shlib_objs@
  11 SHLIB_DIR = @multilib_dir@
  12 SHLIB_LC = -lc
  13
  14 # Darwin only searches in /usr/lib for shared libraries, not in subdirectories,
  15 # so the libgcc variants have different names not different locations.
  16 # Note that this version is used for the loader, not the linker; the linker
  17 # uses the stub versions named by the versioned members of $(INSTALL_FILES).
  18 SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \
  19         -install_name @shlib_slibdir@/$(SHLIB_INSTALL_NAME) \
  20         -single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp \
  21         -Wl,-exported_symbols_list,$(SHLIB_MAP) \
  22         $(SHLIB_VERSTRING) \
  23         @multilib_flags@ $(SHLIB_OBJS) $(SHLIB_LC)
  24
  25 SHLIB_MKMAP = $(gcc_srcdir)/mkmap-flat.awk
  26 SHLIB_MKMAP_OPTS = -v leading_underscore=1
  27 SHLIB_MAPFILES += $(gcc_srcdir)/libgcc-std.ver
  28
  29 INSTALL_FILES=libgcc_s.10.4.dylib libgcc_s.10.5.dylib libgcc_s.1.dylib
  30
  31 # For the toplevel multilib, build a fat archive including all the multilibs.
  32 ifeq ($(MULTIBUILDTOP),)
  33
  34 SHLIB_INSTALL = \
  35         $(mkinstalldirs) $(DESTDIR)$(slibdir); \
  36         $(INSTALL_DATA) $(SHLIB_SONAME) \
  37           $(DESTDIR)$(slibdir)/$(SHLIB_SONAME)
  38
  39 ifeq ($(enable_shared),yes)
  40 all: $(INSTALL_FILES)
  41 install-leaf: install-darwin-libgcc-stubs
  42 endif
  43
  44 # In order to support -mmacosx-version-min, you need to have multiple
  45 # different libgcc_s libraries that actually get linked against, one for
  46 # each system version supported.  They are 'stub' libraries that
  47 # contain no code, just a list of exported symbols.
  48 # The actual use of the libraries is controlled by REAL_LIBGCC_SPEC.
  49 #
  50 # This assumes each multilib corresponds to a different architecture.
  51 libgcc_s.%.dylib : $(SHLIB_VERPFX).%.ver libgcc_s$(SHLIB_EXT) all-multi
  52         $(STRIP) -o $(@)_T \
  53           -s $(SHLIB_VERPFX).$(*).ver -c -u \
  54           ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp
  55         MLIBS=`$(CC) --print-multi-lib \
  56                 | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \
  57         for mlib in $$MLIBS ; do \
  58           $(STRIP) -o $(@)_T$${mlib} \
  59             -s $(SHLIB_VERPFX).$(*).ver -c -u \
  60             ../$${mlib}/libgcc/$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp || exit 1 ; \
  61         done
  62         $(LIPO) -output $@ -create $(@)_T*
  63         rm $(@)_T*
  64
  65 libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): all-multi libgcc_s$(SHLIB_EXT) \
  66         libgcc_s.10.4.dylib libgcc_s.10.5.dylib
  67         cp libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \
  68           ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_ || exit 1 ; \
  69         MLIBS=`$(CC) --print-multi-lib \
  70                 | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \
  71         for mlib in $$MLIBS ; do \
  72           cp ../$${mlib}/libgcc/$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \
  73             ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \
  74         done
  75         $(LIPO) -output libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) \
  76           -create libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T*
  77         rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T*
  78
  79 install-darwin-libgcc-stubs : $(INSTALL_FILES)
  80         $(mkinstalldirs) $(DESTDIR)$(slibdir)
  81         for d in $(INSTALL_FILES) ; do \
  82           $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \
  83         done
  84         if [ -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib ]; then \
  85           rm -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib; \
  86         else true; fi
  87         $(LN_S) libgcc_s.1.dylib \
  88                 $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib
  89         if [ -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib ]; then \
  90           rm -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib; \
  91         else true; fi
  92         $(LN_S) libgcc_s.1.dylib \
  93                 $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib
  94
  95 else
  96
  97 # Do not install shared libraries for any other multilibs.  Unless
  98 # we're putting them in the gcc directory during a build, for
  99 # compatibility with the pre-top-level layout.  In that case we
 100 # need symlinks.
 101 SHLIB_INSTALL =
 102
 103 ifeq ($(enable_shared),yes)
 104 all: install-darwin-libgcc-links
 105 endif
 106
 107 install-darwin-libgcc-links:
 108         $(mkinstalldirs) $(gcc_objdir)$(MULTISUBDIR)
 109         for file in $(INSTALL_FILES); do                        \
 110           rm -f $(gcc_objdir)$(MULTISUBDIR)/$$file;             \
 111           $(LN_S) ../$$file $(gcc_objdir)$(MULTISUBDIR)/;       \
 112         done
 113
 114         rm -f $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_x86_64.1.dylib
 115         $(LN_S) libgcc_s.1.dylib \
 116                 $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_x86_64.1.dylib
 117
 118         rm -f $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_ppc64.1.dylib
 119         $(LN_S) libgcc_s.1.dylib \
 120                 $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_ppc64.1.dylib
 121
 122 endif