--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/ia64/sysv4.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,130 @@
+/* Override definitions in elfos.h/svr4.h to be correct for IA64.  */
+
+#undef TARGET_INIT_LIBFUNCS
+#define TARGET_INIT_LIBFUNCS ia64_sysv4_init_libfuncs
+
+/* We want DWARF2 as specified by the IA64 ABI.  */
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+
+/* Stabs does not work properly for 64-bit targets.  */
+#undef DBX_DEBUGGING_INFO
+
+/* Various pseudo-ops for which the Intel assembler uses non-standard
+   definitions.  */
+
+#undef STRING_ASM_OP
+#define STRING_ASM_OP "\tstringz\t"
+
+#undef SKIP_ASM_OP
+#define SKIP_ASM_OP "\t.skip\t"
+
+#undef COMMON_ASM_OP
+#define COMMON_ASM_OP "\t.common\t"
+
+#undef ASCII_DATA_ASM_OP
+#define ASCII_DATA_ASM_OP "\tstring\t"
+
+/* ia64-specific options for gas
+   ??? ia64 gas doesn't accept standard svr4 assembler options?  */
+#undef ASM_SPEC
+#define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic} %(asm_extra)"
+
+/* ??? Unfortunately, .lcomm doesn't work, because it puts things in either
+   .bss or .sbss, and we can't control the decision of which is used.  When
+   I use .lcomm, I get a cryptic "Section group has no member" error from
+   the Intel simulator.  So we must explicitly put variables in .bss
+   instead.  This matters only if we care about the Intel assembler.  */
+
+/* This is asm_output_aligned_bss from varasm.c without the
+   (*targetm.asm_out.globalize_label) call at the beginning.  */
+
+/* This is for final.c, because it is used by ASM_DECLARE_OBJECT_NAME.  */
+extern int size_directive_output;
+
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
+do {									\
+  if ((DECL) && sdata_symbolic_operand (XEXP (DECL_RTL (DECL), 0), Pmode)) \
+    switch_to_section (sbss_section);					\
+  else									\
+    switch_to_section (bss_section);					\
+  ASM_OUTPUT_ALIGN (FILE, floor_log2 ((ALIGN) / BITS_PER_UNIT));	\
+  ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL);				\
+  ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1);				\
+} while (0)
+
+/* The # tells the Intel assembler that this is not a register name.
+   However, we can't emit the # in a label definition, so we set a variable
+   in ASM_OUTPUT_LABEL to control whether we want the postfix here or not.
+   We append the # to the label name, but since NAME can be an expression
+   we have to scan it for a non-label character and insert the # there.  */
+
+#undef ASM_OUTPUT_LABELREF
+#define ASM_OUTPUT_LABELREF(STREAM, NAME)	\
+do {						\
+  const char *name_ = NAME;			\
+  if (*name_ == '*')				\
+    name_++;					\
+  else						\
+    fputs (user_label_prefix, STREAM);		\
+  fputs (name_, STREAM);			\
+  if (!ia64_asm_output_label)			\
+    fputc ('#', STREAM);			\
+} while (0)
+
+/* Intel assembler requires both flags and type if declaring a non-predefined
+   section.  */
+#undef INIT_SECTION_ASM_OP
+#define INIT_SECTION_ASM_OP	"\t.section\t.init,\"ax\",\"progbits\""
+#undef FINI_SECTION_ASM_OP
+#define FINI_SECTION_ASM_OP	"\t.section\t.fini,\"ax\",\"progbits\""
+
+/* svr4.h undefines this, so we need to define it here.  */
+#define DBX_REGISTER_NUMBER(REGNO) \
+  ia64_dbx_register_number(REGNO)
+
+/* Things that svr4.h defines to the wrong type, because it assumes 32-bit
+   ints and 32-bit longs.  */
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "long unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "long int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+/* We redefine this to use the ia64 .proc pseudo-op.  */
+
+#undef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
+do {									\
+  fputs ("\t.proc ", FILE);						\
+  assemble_name (FILE, NAME);						\
+  fputc ('\n', FILE);							\
+  ASM_OUTPUT_LABEL (FILE, NAME);					\
+} while (0)
+
+/* We redefine this to use the ia64 .endp pseudo-op.  */
+
+#undef ASM_DECLARE_FUNCTION_SIZE
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, NAME, DECL) \
+do {									\
+  fputs ("\t.endp ", FILE);						\
+  assemble_name (FILE, NAME);						\
+  fputc ('\n', FILE);							\
+} while (0)
+
+/* Override default elf definition.  */
+#undef  TARGET_ASM_RELOC_RW_MASK
+#define TARGET_ASM_RELOC_RW_MASK  ia64_reloc_rw_mask
+#undef	TARGET_ASM_SELECT_RTX_SECTION
+#define TARGET_ASM_SELECT_RTX_SECTION  ia64_select_rtx_section
+
+#define SDATA_SECTION_ASM_OP "\t.sdata"
+#define SBSS_SECTION_ASM_OP "\t.sbss"