t-slibgcc-darwin revision 169689
1132718Skan# Build a shared libgcc library with the darwin linker. 2169689SkanSHLIB_SOVERSION = 1 3169689SkanSHLIB_VERSTRING = -compatibility_version $(SHLIB_SOVERSION) -current_version $(SHLIB_SOVERSION).0 4132718SkanSHLIB_EXT = .dylib 5169689SkanSHLIB_SUFFIX = `if test @multilib_dir@ = ppc64 ; then echo _@multilib_dir@ ; fi` 6169689SkanSHLIB_INSTALL_NAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_SOVERSION)$(SHLIB_EXT) 7169689SkanSHLIB_SONAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT) 8169689SkanSHLIB_SOLINK = @shlib_base_name@.so 9132718SkanSHLIB_MAP = @shlib_map_file@ 10132718SkanSHLIB_OBJS = @shlib_objs@ 11169689SkanSHLIB_DIR = @multilib_dir@ 12169689SkanSHLIB_LC = -lc 13132718Skan 14169689Skan# Darwin only searches in /usr/lib for shared libraries, not in subdirectories, 15169689Skan# so the libgcc variants have different names not different locations. 16169689Skan# Note that this version is used for the loader, not the linker; the linker 17169689Skan# uses the stub versions named by $(LIBGCC). 18132718SkanSHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \ 19169689Skan -Wl,-install_name,$(slibdir)/$(SHLIB_INSTALL_NAME) \ 20169689Skan -single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp \ 21169689Skan -Wl,-exported_symbols_list,$(SHLIB_MAP) \ 22132718Skan $(SHLIB_VERSTRING) \ 23169689Skan @multilib_flags@ $(SHLIB_OBJS) $(SHLIB_LC) 24169689Skan 25132718Skan# $(slibdir) double quoted to protect it from expansion while building 26132718Skan# libgcc.mk. We want this delayed until actual install time. 27132718SkanSHLIB_INSTALL = \ 28169689Skan $$(mkinstalldirs) $$(DESTDIR)$$(slibdir); \ 29169689Skan $(INSTALL_DATA) $(SHLIB_SONAME) \ 30169689Skan $$(DESTDIR)$$(slibdir)/$(SHLIB_SONAME) 31169689Skan 32169689SkanSHLIB_MKMAP = $(srcdir)/mkmap-flat.awk 33169689SkanSHLIB_MKMAP_OPTS = -v leading_underscore=1 34169689SkanSHLIB_MAPFILES += $(srcdir)/libgcc-std.ver 35169689Skan 36169689Skan# Must use a different directive for hidden visibility in assembly sources. 37169689SkanASM_HIDDEN_OP = .private_extern 38169689Skan 39169689Skan# In order to support -mmacosx-version-min, you need to have multiple 40169689Skan# different libgcc_s libraries that actually get linked against, one for 41169689Skan# each system version supported. They are 'stub' libraries that 42169689Skan# contain no code, just a list of exported symbols. 43169689Skan# The actual use of the libraries is controlled by REAL_LIBGCC_SPEC. 44169689Skan# 45169689Skan# This assumes each multilib corresponds to a different architecture. 46169689Skanlibgcc_s.%.dylib : $(SHLIB_VERPFX).%.ver stmp-multilib 47169689Skan # When building multilibbed target libraries, all the required 48169689Skan # libraries are expected to exist in the multilib directory. 49169689Skan MLIBS=`$(GCC_FOR_TARGET) --print-multi-lib \ 50169689Skan | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \ 51169689Skan for mlib in $$MLIBS ; do \ 52169689Skan rm -f $${mlib}/$@ || exit 1 ; \ 53169689Skan $(LN_S) ../$@ $${mlib}/$@ || exit 1 ; \ 54169689Skan done 55169689Skan MLIBS=`$(GCC_FOR_TARGET) --print-multi-lib \ 56169689Skan | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \ 57169689Skan for mlib in '' $$MLIBS ; do \ 58169689Skan $(STRIP_FOR_TARGET) -o $(@)_T$${mlib} \ 59169689Skan -s $(SHLIB_VERPFX).$(*).ver -c -u \ 60169689Skan ./$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp || exit 1 ; \ 61169689Skan done 62169689Skan $(LIPO_FOR_TARGET) -output $@ -create $(@)_T* 63169689Skan rm $(@)_T* 64169689Skan 65169689Skanlibgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): stmp-multilib libgcc_s.10.4.dylib \ 66169689Skan libgcc_s.10.5.dylib 67169689Skan # When building multilibbed target libraries, all the required 68169689Skan # libraries are expected to exist in the multilib directory. 69169689Skan MLIBS=`$(GCC_FOR_TARGET) --print-multi-lib \ 70169689Skan | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \ 71169689Skan for mlib in '' $$MLIBS ; do \ 72169689Skan cp ./$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \ 73169689Skan ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ 74169689Skan done 75169689Skan $(LIPO_FOR_TARGET) -output libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) \ 76169689Skan -create libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* 77169689Skan rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* 78169689Skan 79169689Skan# From the point-of-view of the Makefiles, libgcc is built by the 'strip' 80169689Skan# and 'lipo' commands above. 81169689SkanLIBGCC=libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) libgcc_s.10.4.dylib \ 82169689Skan libgcc_s.10.5.dylib stmp-multilib 83169689Skan 84169689SkanINSTALL_FILES=libgcc_s.10.4.dylib libgcc_s.10.5.dylib libgcc_s.1.dylib 85169689Skan 86169689Skaninstall-darwin-libgcc-stubs : $(INSTALL_FILES) installdirs 87169689Skan for d in $(INSTALL_FILES) ; do \ 88169689Skan $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \ 89169689Skan done 90169689Skan if [ -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib ]; then \ 91169689Skan rm -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib; \ 92169689Skan else true; fi 93169689Skan $(LN_S) libgcc_s.1.dylib \ 94169689Skan $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib 95169689Skan if [ -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib ]; then \ 96169689Skan rm -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib; \ 97169689Skan else true; fi 98169689Skan $(LN_S) libgcc_s.1.dylib \ 99169689Skan $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib 100169689Skan 101169689SkanINSTALL_LIBGCC = install-darwin-libgcc-stubs install-multilib 102