Add port done awhile ago for the ARC cpu.

        * arc/arc.h: New file.
        * arc/arc.c: New file.
        * arc/arc.md: New file.
        * arc/initfini.c: New file.
        * arc/lib1funcs.asm: New file.
        * arc/t-arc: New file.
        * arc/xm-arc.h: New file.
        * ginclude/va-arc.h: New file.
        * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
        * ginclude/varargs.h: Likewise.
        * Makefile.in (USER_H): Add va-arc.h.
        * configure.in (arc-*-elf*): Recognize.
        * longlong.h: Add ARC support.
Mostly so I can test changes in snapshot scripts.

        * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
        when clearing non-BLKmode data.
Fixes sparc problem.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@15188 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/config/arc/t-arc b/gcc/config/arc/t-arc
new file mode 100644 (file)
index 0000000..d922c27
--- /dev/null
+++ b/gcc/config/arc/t-arc
@@ -0,0 +1,72 @@
+CROSS_LIBGCC1 = libgcc1-asm.a
+LIB1ASMSRC = arc/lib1funcs.asm
+LIB1ASMFUNCS = _mulsi3 _umulsidi3 _udivsi3 _divsi3 _umodsi3 _modsi3 _divmod_tools
+
+# We need libgcc routines to be mangled according to which cpu they
+# were compiled for.
+# ??? -mmangle-cpu passed by default for now.
+#LIBGCC2_CFLAGS = -g1 -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) -mmangle-cpu
+
+# These are really part of libgcc1, but this will cause them to be
+# built correctly, so...
+
+LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c
+
+dp-bit.c: $(srcdir)/config/fp-bit.c
+       echo '#ifndef __big_endian__' > dp-bit.c
+       echo '#define FLOAT_BIT_ORDER_MISMATCH' >> dp-bit.c
+       echo '#endif' >> dp-bit.c
+       cat $(srcdir)/config/fp-bit.c >> dp-bit.c
+
+fp-bit.c: $(srcdir)/config/fp-bit.c
+       echo '#define FLOAT' > fp-bit.c
+       echo '#ifndef __big_endian__' >> fp-bit.c
+       echo '#define FLOAT_BIT_ORDER_MISMATCH' >> fp-bit.c
+       echo '#endif' >> fp-bit.c
+       cat $(srcdir)/config/fp-bit.c >> fp-bit.c
+
+# .init/.fini section routines
+
+x-crtinit.o: $(srcdir)/config/arc/initfini.c $(GCC_PASSES) $(CONFIG_H)
+       $(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(CRTSTUFF_T_CFLAGS) \
+         -DCRT_INIT -finhibit-size-directive -fno-inline-functions \
+         -g0 -c $(srcdir)/config/arc/initfini.c -o $(dir)/crtinit.o
+
+x-crtfini.o: $(srcdir)/config/arc/initfini.c $(GCC_PASSES) $(CONFIG_H)
+       $(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(CRTSTUFF_T_CFLAGS) \
+         -DCRT_FINI -finhibit-size-directive -fno-inline-functions \
+         -g0 -c $(srcdir)/config/arc/initfini.c -o $(dir)/crtfini.o
+
+MULTILIB_OPTIONS = EB
+MULTILIB_DIRNAMES = be
+
+# We need our own versions to build multiple copies of crt*.o.
+# ??? Use new support in Makefile.
+
+LIBGCC = stmp-multilib-arc
+INSTALL_LIBGCC = install-multilib-arc
+
+stmp-multilib-arc: stmp-multilib
+       for i in `$(GCC_FOR_TARGET) --print-multi-lib`; do \
+         dir=`echo $$i | sed -e 's/;.*$$//'`; \
+         flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
+         $(MAKE) GCC_FOR_TARGET="$(GCC_FOR_TARGET)" \
+           CC="$(CC)" CFLAGS="$(CFLAGS)" \
+           HOST_PREFIX="$(HOST_PREFIX)" HOST_PREFIX_1="$(HOST_PREFIX_1)" \
+           GCC_CFLAGS="$(GCC_CFLAGS) $${flags}" \
+           INCLUDES="$(INCLUDES)" CRTSTUFF_T_CFLAGS=$(CRTSTUFF_T_CFLAGS) \
+           dir="$${dir}" x-crtinit.o x-crtfini.o; \
+         if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
+       done
+       touch stmp-multilib-arc
+
+install-multilib-arc: install-multilib
+       for i in `$(GCC_FOR_TARGET) --print-multi-lib`; do \
+         dir=`echo $$i | sed -e 's/;.*$$//'`; \
+         rm -f $(libsubdir)/$${dir}/crtinit.o; \
+         $(INSTALL_DATA) $${dir}/crtinit.o $(libsubdir)/$${dir}/crtinit.o; \
+         chmod a-x $(libsubdir)/$${dir}/crtinit.o; \
+         rm -f $(libsubdir)/$${dir}/crtfini.o; \
+         $(INSTALL_DATA) $${dir}/crtfini.o $(libsubdir)/$${dir}/crtfini.o; \
+         chmod a-x $(libsubdir)/$${dir}/crtfini.o; \
+       done