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      1 # Set this as a minimum (unless overriden by arch t-files) since it's a
      2 # reasonable lowest common denominator that works for all our archs.
      3 HOST_LIBGCC2_CFLAGS += $(DARWIN_MIN_LIB_VERSION)
      4 
      5 crt3.o: $(srcdir)/config/darwin-crt3.c
      6 	$(crt_compile) $(DARWIN_MIN_CRT_VERSION) -c $<
      7 
      8 crttms.o: $(srcdir)/config/darwin-crt-tm.c
      9 	$(crt_compile) $(DARWIN_MIN_CRT_VERSION) -DSTART -c $<
     10 
     11 crttme.o: $(srcdir)/config/darwin-crt-tm.c
     12 	$(crt_compile) $(DARWIN_MIN_CRT_VERSION) -DEND -c $<
     13 
     14 # Make emutls weak so that we can deal with -static-libgcc, override the
     15 #hidden visibility when this is present in libgcc_eh.
     16 emutls.o: HOST_LIBGCC2_CFLAGS += \
     17   -DEMUTLS_ATTR='__attribute__((__weak__,__visibility__("default")))'
     18 emutls_s.o: HOST_LIBGCC2_CFLAGS += \
     19   -DEMUTLS_ATTR='__attribute__((__weak__,__visibility__("default")))'
     20 
     21 # Make the emutls crt as a convenience lib so that it can be linked
     22 #optionally, use the shared version so that we can link with DSO.
     23 libemutls_w.a: emutls_s.o
     24 	$(AR_CREATE_FOR_TARGET) $@ $<
     25 	$(RANLIB_FOR_TARGET) $@
     26 
     27 # Patch to __Unwind_Find_Enclosing_Function for Darwin10.
     28 # This needs to be built for darwin10, regardless of the current platform
     29 # version.
     30 d10-uwfef.o: $(srcdir)/config/darwin10-unwind-find-enc-func.c libgcc_tm.h
     31 	$(crt_compile) -mmacosx-version-min=10.6 -c $<
     32 
     33 # Using this crt as a library means that it will not be added to an exe
     34 #(or module) unless needed.
     35 libd10-uwfef.a: d10-uwfef.o
     36 	$(AR_CREATE_FOR_TARGET) $@ d10-uwfef.o
     37 	$(RANLIB_FOR_TARGET) $@
     38 
     39 ######Unwinder #######
     40 # Most Darwin versions get their unwinder from libSystem; older versions
     41 #have an installed /usr/lib/libgcc_s.1.dylib.
     42 # So do not add the unwinder to the shared libgcc.
     43 LIB2ADDEHSHARED =
     44 
     45 # We still need it in the _eh.a for earlier platform versions.
     46 # Use unwind-dw2-fde-darwin
     47 LIB2ADDEH = $(srcdir)/unwind-dw2.c \
     48 	    $(srcdir)/config/unwind-dw2-fde-darwin.c \
     49 	    $(srcdir)/unwind-c.c
     50 
     51 # Do not build a shared unwind lib by default.
     52 LIBEHSOBJS=
     53 
     54 # Symbols for all the sub-ports.
     55 SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/libgcc-libsystem.ver
     56