coff.h   [plain text]


/* Definitions of target machine for GNU compiler.
   For ARM with COFF object format.
   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002
   Free Software Foundation, Inc.
   Contributed by Doug Evans (devans@cygnus.com).
   
This file is part of GNU CC.

GNU CC 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 2, or (at your option)
any later version.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


/* Note - it is important that this definition matches the one in tcoff.h */
#undef  USER_LABEL_PREFIX
#define USER_LABEL_PREFIX "_"


/* Run-time Target Specification.  */
#undef  TARGET_VERSION
#define TARGET_VERSION fputs (" (ARM/coff)", stderr)

#undef  TARGET_DEFAULT
#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME)

#ifndef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS \
  { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork" }
#endif

/* This is COFF, but prefer stabs.  */
#define SDB_DEBUGGING_INFO 1

#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

#include "dbxcoff.h"

/* A C statement to output assembler commands which will identify the
   object file as having been compiled with GNU CC (or another GNU
   compiler).  */

/* This outputs a lot of .req's to define alias for various registers.
   Let's try to avoid this.  */
#undef ASM_FILE_START
#define ASM_FILE_START(STREAM)					\
  do								\
    {								\
      fprintf (STREAM, "%s Generated by gcc %s for ARM/coff\n",	\
	       ASM_COMMENT_START, version_string);		\
      fprintf (STREAM, ASM_APP_OFF);				\
    }								\
  while (0)

/* Switch into a generic section.  */
#define TARGET_ASM_NAMED_SECTION  default_coff_asm_named_section

/* Support the ctors/dtors and other sections.  */

#undef INIT_SECTION_ASM_OP

/* Define this macro if jump tables (for `tablejump' insns) should be
   output in the text section, along with the assembler instructions.
   Otherwise, the readonly data section is used.  */
/* We put ARM jump tables in the text section, because it makes the code
   more efficient, but for Thumb it's better to put them out of band.  */
#define JUMP_TABLES_IN_TEXT_SECTION (TARGET_ARM)

#undef  READONLY_DATA_SECTION_ASM_OP
#define READONLY_DATA_SECTION_ASM_OP	"\t.section .rdata"
#undef  CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP	"\t.section .ctors,\"x\""
#undef  DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP	"\t.section .dtors,\"x\""

/* Support the ctors/dtors sections for g++.  */

/* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script.  */
#define CTOR_LISTS_DEFINED_EXTERNALLY

#undef DO_GLOBAL_CTORS_BODY
#undef DO_GLOBAL_DTORS_BODY

/* The ARM development system defines __main.  */
#define NAME__MAIN  "__gccmain"
#define SYMBOL__MAIN __gccmain

#define SUPPORTS_INIT_PRIORITY 0