Imported gcc-4.4.3

[msp430-gcc.git] / libgcc / config / t-slibgcc-darwin

diff --git a/libgcc/config/t-slibgcc-darwin b/libgcc/config/t-slibgcc-darwin
new file mode 100644 (file)
index 0000000..3dd1723
--- /dev/null
+++ b/libgcc/config/t-slibgcc-darwin
@@ -0,0 +1,122 @@
+# Build a shared libgcc library with the darwin linker.
+SHLIB_SOVERSION = 1
+SHLIB_VERSTRING = -compatibility_version $(SHLIB_SOVERSION) -current_version $(SHLIB_SOVERSION).0
+SHLIB_EXT = .dylib
+SHLIB_SUFFIX = `if test @multilib_dir@ = ppc64 ; then echo _@multilib_dir@ ; fi`
+SHLIB_INSTALL_NAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_SOVERSION)$(SHLIB_EXT)
+SHLIB_SONAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT)
+SHLIB_SOLINK = @shlib_base_name@.so
+SHLIB_MAP = @shlib_map_file@
+SHLIB_OBJS = @shlib_objs@
+SHLIB_DIR = @multilib_dir@
+SHLIB_LC = -lc
+
+# Darwin only searches in /usr/lib for shared libraries, not in subdirectories,
+# so the libgcc variants have different names not different locations.
+# Note that this version is used for the loader, not the linker; the linker
+# uses the stub versions named by the versioned members of $(INSTALL_FILES).
+SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \
+       -install_name @shlib_slibdir@/$(SHLIB_INSTALL_NAME) \
+       -single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp \
+       -Wl,-exported_symbols_list,$(SHLIB_MAP) \
+       $(SHLIB_VERSTRING) \
+       @multilib_flags@ $(SHLIB_OBJS) $(SHLIB_LC)
+
+SHLIB_MKMAP = $(gcc_srcdir)/mkmap-flat.awk
+SHLIB_MKMAP_OPTS = -v leading_underscore=1
+SHLIB_MAPFILES += $(gcc_srcdir)/libgcc-std.ver
+
+INSTALL_FILES=libgcc_s.10.4.dylib libgcc_s.10.5.dylib libgcc_s.1.dylib
+
+# For the toplevel multilib, build a fat archive including all the multilibs.
+ifeq ($(MULTIBUILDTOP),)
+
+SHLIB_INSTALL = \
+       $(mkinstalldirs) $(DESTDIR)$(slibdir); \
+       $(INSTALL_DATA) $(SHLIB_SONAME) \
+         $(DESTDIR)$(slibdir)/$(SHLIB_SONAME)
+
+ifeq ($(enable_shared),yes)
+all: $(INSTALL_FILES)
+install-leaf: install-darwin-libgcc-stubs
+endif
+
+# In order to support -mmacosx-version-min, you need to have multiple
+# different libgcc_s libraries that actually get linked against, one for
+# each system version supported.  They are 'stub' libraries that
+# contain no code, just a list of exported symbols.
+# The actual use of the libraries is controlled by REAL_LIBGCC_SPEC.
+#
+# This assumes each multilib corresponds to a different architecture.
+libgcc_s.%.dylib : $(SHLIB_VERPFX).%.ver libgcc_s$(SHLIB_EXT) all-multi
+       $(STRIP) -o $(@)_T \
+         -s $(SHLIB_VERPFX).$(*).ver -c -u \
+         ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp
+       MLIBS=`$(CC) --print-multi-lib \
+               | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \
+       for mlib in $$MLIBS ; do \
+         $(STRIP) -o $(@)_T$${mlib} \
+           -s $(SHLIB_VERPFX).$(*).ver -c -u \
+           ../$${mlib}/libgcc/$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp || exit 1 ; \
+       done
+       $(LIPO) -output $@ -create $(@)_T*
+       rm $(@)_T*
+
+libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): all-multi libgcc_s$(SHLIB_EXT) \
+       libgcc_s.10.4.dylib libgcc_s.10.5.dylib
+       cp libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \
+         ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_ || exit 1 ; \
+       MLIBS=`$(CC) --print-multi-lib \
+               | sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \
+       for mlib in $$MLIBS ; do \
+         cp ../$${mlib}/libgcc/$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \
+           ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${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*
+
+install-darwin-libgcc-stubs : $(INSTALL_FILES)
+       $(mkinstalldirs) $(DESTDIR)$(slibdir)
+       for d in $(INSTALL_FILES) ; do \
+         $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \
+       done
+       if [ -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib ]; then \
+         rm -f $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib; \
+       else true; fi
+       $(LN_S) libgcc_s.1.dylib \
+               $(DESTDIR)$(slibdir)/libgcc_s_ppc64.1.dylib
+       if [ -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib ]; then \
+         rm -f $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib; \
+       else true; fi
+       $(LN_S) libgcc_s.1.dylib \
+               $(DESTDIR)$(slibdir)/libgcc_s_x86_64.1.dylib
+
+else
+
+# Do not install shared libraries for any other multilibs.  Unless
+# we're putting them in the gcc directory during a build, for
+# compatibility with the pre-top-level layout.  In that case we
+# need symlinks.
+SHLIB_INSTALL =
+
+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
+
+       rm -f $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_x86_64.1.dylib
+       $(LN_S) libgcc_s.1.dylib \
+               $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_x86_64.1.dylib
+
+       rm -f $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_ppc64.1.dylib
+       $(LN_S) libgcc_s.1.dylib \
+               $(gcc_objdir)$(MULTISUBDIR)/libgcc_s_ppc64.1.dylib
+
+endif