text: /* 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
  