1*404b540aSrobert# Build a shared libgcc library with the darwin linker. 2*404b540aSrobertSHLIB_SOVERSION = 1 3*404b540aSrobertSHLIB_VERSTRING = -compatibility_version $(SHLIB_SOVERSION) -current_version $(SHLIB_SOVERSION).0 4*404b540aSrobertSHLIB_EXT = .dylib 5*404b540aSrobertSHLIB_SUFFIX = `if test @multilib_dir@ = ppc64 ; then echo _@multilib_dir@ ; fi` 6*404b540aSrobertSHLIB_INSTALL_NAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_SOVERSION)$(SHLIB_EXT) 7*404b540aSrobertSHLIB_SONAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT) 8*404b540aSrobertSHLIB_SOLINK = @shlib_base_name@.so 9*404b540aSrobertSHLIB_MAP = @shlib_map_file@ 10*404b540aSrobertSHLIB_OBJS = @shlib_objs@ 11*404b540aSrobertSHLIB_DIR = @multilib_dir@ 12*404b540aSrobertSHLIB_LC = -lc 13*404b540aSrobert 14*404b540aSrobert# Darwin only searches in /usr/lib for shared libraries, not in subdirectories, 15*404b540aSrobert# so the libgcc variants have different names not different locations. 16*404b540aSrobert# Note that this version is used for the loader, not the linker; the linker 17*404b540aSrobert# uses the stub versions named by $(LIBGCC). 18*404b540aSrobertSHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \ 19*404b540aSrobert -Wl,-install_name,$(slibdir)/$(SHLIB_INSTALL_NAME) \ 20*404b540aSrobert -single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp \ 21*404b540aSrobert -Wl,-exported_symbols_list,$(SHLIB_MAP) \ 22*404b540aSrobert $(SHLIB_VERSTRING) \ 23*404b540aSrobert @multilib_flags@ $(SHLIB_OBJS) $(SHLIB_LC) 24*404b540aSrobert 25*404b540aSrobert# $(slibdir) double quoted to protect it from expansion while building 26*404b540aSrobert# libgcc.mk. We want this delayed until actual install time. 27*404b540aSrobertSHLIB_INSTALL = \ 28*404b540aSrobert $$(mkinstalldirs) $$(DESTDIR)$$(slibdir); \ 29*404b540aSrobert $(INSTALL_DATA) $(SHLIB_SONAME) \ 30*404b540aSrobert $$(DESTDIR)$$(slibdir)/$(SHLIB_SONAME) 31*404b540aSrobert 32*404b540aSrobertSHLIB_MKMAP = $(srcdir)/mkmap-flat.awk 33*404b540aSrobertSHLIB_MKMAP_OPTS = -v leading_underscore=1 34*404b540aSrobertSHLIB_MAPFILES += $(srcdir)/libgcc-std.ver 35*404b540aSrobert 36*404b540aSrobert# Must use a different directive for hidden visibility in assembly sources. 37*404b540aSrobertASM_HIDDEN_OP = .private_extern 38*404b540aSrobert 39*404b540aSrobert# In order to support -mmacosx-version-min, you need to have multiple 40*404b540aSrobert# different libgcc_s libraries that actually get linked against, one for 41*404b540aSrobert# each system version supported. They are 'stub' libraries that 42*404b540aSrobert# contain no code, just a list of exported symbols. 43*404b540aSrobert# The actual use of the libraries is controlled by REAL_LIBGCC_SPEC. 44*404b540aSrobert# 45*404b540aSrobert# This assumes each multilib corresponds to a different architecture. 46*404b540aSrobertlibgcc_s.%.dylib : $(SHLIB_VERPFX).%.ver stmp-multilib 47*404b540aSrobert # When building multilibbed target libraries, all the required 48*404b540aSrobert # libraries are expected to exist in the multilib directory. 49*404b540aSrobert MLIBS=`$(GCC_FOR_TARGET) --print-multi-lib \ 50*404b540aSrobert | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \ 51*404b540aSrobert for mlib in $$MLIBS ; do \ 52*404b540aSrobert rm -f $${mlib}/$@ || exit 1 ; \ 53*404b540aSrobert $(LN_S) ../$@ $${mlib}/$@ || exit 1 ; \ 54*404b540aSrobert done 55*404b540aSrobert MLIBS=`$(GCC_FOR_TARGET) --print-multi-lib \ 56*404b540aSrobert | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \ 57*404b540aSrobert for mlib in '' $$MLIBS ; do \ 58*404b540aSrobert $(STRIP_FOR_TARGET) -o $(@)_T$${mlib} \ 59*404b540aSrobert -s $(SHLIB_VERPFX).$(*).ver -c -u \ 60*404b540aSrobert ./$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp || exit 1 ; \ 61*404b540aSrobert done 62*404b540aSrobert $(LIPO_FOR_TARGET) -output $@ -create $(@)_T* 63*404b540aSrobert rm $(@)_T* 64*404b540aSrobert 65*404b540aSrobertlibgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): stmp-multilib libgcc_s.10.4.dylib \ 66*404b540aSrobert libgcc_s.10.5.dylib 67*404b540aSrobert # When building multilibbed target libraries, all the required 68*404b540aSrobert # libraries are expected to exist in the multilib directory. 69*404b540aSrobert MLIBS=`$(GCC_FOR_TARGET) --print-multi-lib \ 70*404b540aSrobert | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \ 71*404b540aSrobert for mlib in '' $$MLIBS ; do \ 72*404b540aSrobert cp ./$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \ 73*404b540aSrobert ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ 74*404b540aSrobert done 75*404b540aSrobert $(LIPO_FOR_TARGET) -output libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) \ 76*404b540aSrobert -create libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* 77*404b540aSrobert rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* 78*404b540aSrobert 79*404b540aSrobert# From the point-of-view of the Makefiles, libgcc is built by the 'strip' 80*404b540aSrobert# and 'lipo' commands above. 81*404b540aSrobertLIBGCC=libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) libgcc_s.10.4.dylib \ 82*404b540aSrobert libgcc_s.10.5.dylib stmp-multilib 83*404b540aSrobert 84*404b540aSrobertINSTALL_FILES=libgcc_s.10.4.dylib libgcc_s.10.5.dylib libgcc_s.1.dylib 85*404b540aSrobert 86*404b540aSrobertinstall-darwin-libgcc-stubs : $(INSTALL_FILES) installdirs 87*404b540aSrobert for d in $(INSTALL_FILES) ; do \ 88*404b540aSrobert $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \ 89*404b540aSrobert done 90*404b540aSrobert if [ -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib ]; then \ 91*404b540aSrobert rm -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib; \ 92*404b540aSrobert else true; fi 93*404b540aSrobert $(LN_S) libgcc_s.1.dylib \ 94*404b540aSrobert $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib 95*404b540aSrobert if [ -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib ]; then \ 96*404b540aSrobert rm -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib; \ 97*404b540aSrobert else true; fi 98*404b540aSrobert $(LN_S) libgcc_s.1.dylib \ 99*404b540aSrobert $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib 100*404b540aSrobert 101*404b540aSrobertINSTALL_LIBGCC = install-darwin-libgcc-stubs install-multilib 102