| # Build a shared libgcc library with the darwin linker. |
| |
| SHLIB_SOVERSION = 1.1 |
| SHLIB_SO_MINVERSION = 1 |
| SHLIB_VERSTRING = -compatibility_version $(SHLIB_SO_MINVERSION) \ |
| -current_version $(SHLIB_SOVERSION) |
| SHLIB_EXT = .dylib |
| SHLIB_LC = -lSystem |
| SHLIB_INSTALL_DIR = $(slibdir) |
| |
| SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk |
| SHLIB_MKMAP_OPTS = -v leading_underscore=1 |
| |
| # Shorthand expressions for the LINK below, these are substituted in the |
| # link expression. |
| SHLIB_INSTALL_NAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT) |
| SHLIB_MAP = @shlib_map_file@ |
| SHLIB_DIR = @multilib_dir@ |
| SHLIB_SONAME = @shlib_base_name@$(SHLIB_EXT) |
| |
| # Darwin only searches in shlib_slibdir for shared libraries, not in |
| # subdirectories. The link builds one architecture slice in its designated |
| # subdir. The code under MULTIBUILDTOP combines these into a single FAT |
| # library, that is what we eventually install. |
| |
| SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) $(LDFLAGS) -dynamiclib -nodefaultlibs \ |
| -install_name $(SHLIB_INSTALL_DIR)/$(SHLIB_INSTALL_NAME) \ |
| -single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME) \ |
| -Wl,-exported_symbols_list,$(SHLIB_MAP) \ |
| $(SHLIB_VERSTRING) \ |
| @multilib_flags@ @shlib_objs@ $(SHLIB_LC) |
| |
| # we do our own thing |
| SHLIB_INSTALL = |
| |
| LGCC_FILES = libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) |
| |
| ifeq ($(BUILD_LIBGCCS1),YES) |
| |
| # We are going to build a libgcc_s.1.dylib so that distributions can |
| # install it for compatibility with binaries linked against the old |
| # libgcc_ext.10.x.dylib stubs. |
| |
| # For systems after macOS 10.7 we can forward the correct unwinder symbols |
| # from libSystem. |
| |
| # For older systems we have to forward an entire library (since they cannot |
| # selectively forward symbols, which means that we cannot forward the unwinder |
| # in /usr/lib/libgcc_s.1.dylib). We also cannot forward the entire library |
| # since that creates a self-referencing loop when DYLD_LIBRARY_PATH is used. |
| # To provide the unwinder symbols in this case, we build the unwinder into a |
| # separate shared lib (libgcc_ehs) and forward that. |
| |
| # These targets are local to this make fragment, which means that they do not |
| # get the substitutions seen in SHLIB_LINK. |
| |
| ifneq ($(LIBEHSOBJS),) |
| |
| EHS_INSTNAME = libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT) |
| |
| # multilib build for a shared EH lib. |
| |
| libgcc_ehs$(SHLIB_EXT): $(LIBEHSOBJS) $(extra-parts) |
| mkdir -p $(MULTIDIR) |
| $(CC) $(LIBGCC2_CFLAGS) $(LDFLAGS) -dynamiclib -nodefaultlibs \ |
| -install_name $(SHLIB_INSTALL_DIR)/$(EHS_INSTNAME) \ |
| -o $(MULTIDIR)/libgcc_ehs$(SHLIB_EXT) $(SHLIB_VERSTRING) \ |
| $(LIBEHSOBJS) $(SHLIB_LC) |
| |
| all: libgcc_ehs$(SHLIB_EXT) |
| |
| LGCC_FILES += libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT) |
| |
| endif |
| endif |
| |
| INSTALL_FILES=$(LGCC_FILES) |
| |
| ifeq ($(BUILD_LIBGCCS1),YES) |
| # Provide libgcc_s.1 for backwards compatibility. |
| INSTALL_FILES += libgcc_s.1.dylib |
| endif |
| |
| # For the toplevel multilib, build FAT dylibs including all the multilibs. |
| ifeq ($(MULTIBUILDTOP),) |
| |
| ifeq ($(enable_shared),yes) |
| all: $(INSTALL_FILES) |
| install-leaf: install-darwin-libgcc-stubs |
| endif |
| |
| libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): all-multi libgcc_s$(SHLIB_EXT) |
| MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \ |
| for mlib in $$MLIBS ; do \ |
| cp ../$${mlib}/libgcc/$${mlib}/libgcc_s$(SHLIB_EXT) \ |
| ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ |
| done |
| $(LIPO) -output libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) \ |
| -create libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| |
| ifeq ($(BUILD_LIBGCCS1),YES) |
| ifneq ($(LIBEHSOBJS),) |
| |
| libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT): all-multi libgcc_ehs$(SHLIB_EXT) |
| MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \ |
| for mlib in $$MLIBS ; do \ |
| cp ../$${mlib}/libgcc/$${mlib}/libgcc_ehs$(SHLIB_EXT) \ |
| ./libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ |
| done |
| $(LIPO) -output libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT) \ |
| -create libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| rm libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| |
| |
| libgcc_s.1.dylib: all-multi libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) \ |
| libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT) |
| MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \ |
| for mlib in $$MLIBS ; do \ |
| cp ../$${mlib}/libgcc/$${mlib}/libgcc_s$(SHLIB_EXT) \ |
| ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ |
| cp ../$${mlib}/libgcc/$${mlib}/libgcc_ehs$(SHLIB_EXT) \ |
| ./libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ |
| arch=`$(LIPO) -info libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} | sed -e 's/.*:\ //'` ; \ |
| $(CC) -arch $${arch} -nodefaultlibs -dynamiclib \ |
| -o libgcc_s.1$(SHLIB_EXT)_T_$${mlib} \ |
| -Wl,-reexport_library,libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} \ |
| -Wl,-reexport_library,libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} \ |
| -install_name $(SHLIB_INSTALL_DIR)/libgcc_s.1.dylib \ |
| -compatibility_version 1 -current_version 1 ; \ |
| done |
| $(LIPO) -output libgcc_s.1$(SHLIB_EXT) -create libgcc_s.1$(SHLIB_EXT)_T* |
| rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| rm libgcc_ehs.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| |
| else |
| |
| libgcc_s.1.dylib: all-multi libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) |
| MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \ |
| for mlib in $$MLIBS ; do \ |
| cp ../$${mlib}/libgcc/$${mlib}/libgcc_s$(SHLIB_EXT) \ |
| ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \ |
| arch=`$(LIPO) -info libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} | sed -e 's/.*:\ //'` ; \ |
| $(CC) -arch $${arch} -nodefaultlibs -dynamiclib \ |
| -o libgcc_s.1$(SHLIB_EXT)_T_$${mlib} \ |
| -Wl,-reexport_library,libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} \ |
| -lSystem \ |
| -Wl,-reexported_symbols_list,$(srcdir)/config/darwin-unwind.ver \ |
| -install_name $(SHLIB_INSTALL_DIR)/libgcc_s.1.dylib \ |
| -compatibility_version 1 -current_version 1 ; \ |
| done |
| $(LIPO) -output libgcc_s.1$(SHLIB_EXT) -create libgcc_s.1$(SHLIB_EXT)_T* |
| rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T* |
| |
| endif |
| endif |
| |
| # Install the shared libraries. |
| |
| install-darwin-libgcc-stubs : |
| $(mkinstalldirs) $(DESTDIR)$(slibdir) |
| if test x$(slibdir) = x; then \ |
| for d in $(LGCC_FILES) ; do \ |
| $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \ |
| done; \ |
| else \ |
| for d in $(INSTALL_FILES) ; do \ |
| $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \ |
| done; \ |
| fi |
| |
| else |
| |
| # Do not install shared libraries for multilibs. Unless we are putting them |
| # in the gcc directory during a build, for compatibility with the pre-top- |
| # level layout. In that case we provide symlinks to the FAT lib from the |
| # multilib sub-directories. |
| |
| ifeq ($(enable_shared),yes) |
| all: install-darwin-libgcc-links |
| endif |
| |
| install-darwin-libgcc-links: |
| $(mkinstalldirs) $(gcc_objdir)$(MULTISUBDIR) |
| for file in $(INSTALL_FILES); do \ |
| rm -f $(gcc_objdir)$(MULTISUBDIR)/$$file; \ |
| $(LN_S) ../$$file $(gcc_objdir)$(MULTISUBDIR)/; \ |
| done |
| |
| endif |