--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/m68k/m68kelf.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,164 @@
+/* m68kelf support, derived from m68kv4.h */
+
+/* Target definitions for GNU compiler for mc680x0 running System V.4
+   Copyright (C) 1991, 1993, 2000, 2002, 2003, 2004, 2007
+   Free Software Foundation, Inc.
+
+   Written by Ron Guilmette (rfg@netcom.com) and Fred Fish (fnf@cygnus.com).
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+
+#ifndef SWBEG_ASM_OP
+#define SWBEG_ASM_OP "\t.swbeg\t"
+#endif
+
+/* Here are three prefixes that are used by asm_fprintf to
+   facilitate customization for alternate assembler syntaxes.
+   Machines with no likelihood of an alternate syntax need not
+   define these and need not use asm_fprintf.  */
+
+/* The prefix for register names.  Note that REGISTER_NAMES
+   is supposed to include this prefix. Also note that this is NOT an
+   fprintf format string, it is a literal string */
+
+#undef REGISTER_PREFIX
+#define REGISTER_PREFIX "%"
+
+/* The prefix for local (compiler generated) labels.
+   These labels will not appear in the symbol table.  */
+
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* The prefix to add to user-visible assembler symbols.  */
+
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+
+/* config/m68k.md has an explicit reference to the program counter,
+   prefix this by the register prefix.  */
+
+#define ASM_RETURN_CASE_JUMP				\
+  do {							\
+    if (TARGET_COLDFIRE)				\
+      {							\
+	if (ADDRESS_REG_P (operands[0]))		\
+	  return "jmp %%pc@(2,%0:l)";			\
+	else						\
+	  return "ext%.l %0\n\tjmp %%pc@(2,%0:l)";	\
+      }							\
+    else						\
+      return "jmp %%pc@(2,%0:w)";			\
+  } while (0)
+
+/* This is how to output an assembler line that says to advance the
+   location counter to a multiple of 2**LOG bytes.  */
+
+#undef ASM_OUTPUT_ALIGN
+#define ASM_OUTPUT_ALIGN(FILE,LOG)				\
+do {								\
+  if ((LOG) > 0)						\
+    fprintf ((FILE), "%s%u\n", ALIGN_ASM_OP, 1 << (LOG));	\
+} while (0)
+
+/* Register in which address to store a structure value is passed to a
+   function.  The default in m68k.h is a1.  For m68k/SVR4 it is a0.  */
+
+#undef M68K_STRUCT_VALUE_REGNUM
+#define M68K_STRUCT_VALUE_REGNUM A0_REG
+
+/* The static chain regnum defaults to a0, but we use that for
+   structure return, so have to use a1 for the static chain.  */
+
+#undef STATIC_CHAIN_REGNUM
+#define STATIC_CHAIN_REGNUM A1_REG
+#undef M68K_STATIC_CHAIN_REG_NAME
+#define M68K_STATIC_CHAIN_REG_NAME REGISTER_PREFIX "a1"
+
+#define ASM_COMMENT_START "|"
+
+/* Define how the m68k registers should be numbered for Dwarf output.
+   The numbering provided here should be compatible with the native
+   SVR4 SDB debugger in the m68k/SVR4 reference port, where d0-d7
+   are 0-7, a0-a8 are 8-15, and fp0-fp7 are 16-23.  */
+
+#undef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+
+#if 0
+/* SVR4 m68k assembler is bitching on the `comm i,1,1' which askes for 
+   1 byte alignment. Don't generate alignment for COMMON seems to be
+   safer until we the assembler is fixed.  */
+#undef ASM_OUTPUT_ALIGNED_COMMON
+/* Same problem with this one.  */
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#endif
+
+#undef ASM_OUTPUT_COMMON
+#undef ASM_OUTPUT_LOCAL
+#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
+( fputs (".comm ", (FILE)),			\
+  assemble_name ((FILE), (NAME)),		\
+  fprintf ((FILE), ",%u\n", (int)(SIZE)))
+
+#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
+( fputs (".lcomm ", (FILE)),			\
+  assemble_name ((FILE), (NAME)),		\
+  fprintf ((FILE), ",%u\n", (int)(SIZE)))
+
+/* Currently, JUMP_TABLES_IN_TEXT_SECTION must be defined in order to
+   keep switch tables in the text section.  */
+   
+#define JUMP_TABLES_IN_TEXT_SECTION 1
+
+/* Override the definition in svr4.h. In m68k svr4, using swbeg is the 
+   standard way to do switch table.  */
+#undef ASM_OUTPUT_BEFORE_CASE_LABEL
+#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE)		\
+  fprintf ((FILE), "%s&%d\n", SWBEG_ASM_OP, XVECLEN (PATTERN (TABLE), 1));
+/* end of stuff from m68kv4.h */
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s"
+
+#undef	STARTFILE_SPEC
+#define STARTFILE_SPEC "crtbegin.o%s"
+
+/* If defined, a C expression whose value is a string containing the
+   assembler operation to identify the following data as
+   uninitialized global data.  If not defined, and neither
+   `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
+   uninitialized global data will be output in the data section if
+   `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
+   used.  */
+#ifndef BSS_SECTION_ASM_OP
+#define BSS_SECTION_ASM_OP	"\t.section\t.bss"
+#endif
+
+/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
+   separate, explicit argument.  If you define this macro, it is used
+   in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
+   handling the required alignment of the variable.  The alignment is
+   specified as the number of bits.
+
+   Try to use function `asm_output_aligned_bss' defined in file
+   `varasm.c' when defining this macro.  */
+#ifndef ASM_OUTPUT_ALIGNED_BSS
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+  asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+#endif