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