2002-02-01 18:16:02 +00:00
|
|
|
|
/* Definitions of target machine for GNU compiler.
|
|
|
|
|
For ARM with COFF object format.
|
|
|
|
|
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
|
|
|
|
|
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
|
|
|
|
|
|
|
|
|
|
#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. */
|
2002-05-09 20:02:13 +00:00
|
|
|
|
/* 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)
|
2002-02-01 18:16:02 +00:00
|
|
|
|
|
|
|
|
|
#undef READONLY_DATA_SECTION
|
|
|
|
|
#define READONLY_DATA_SECTION rdata_section
|
|
|
|
|
#undef RDATA_SECTION_ASM_OP
|
|
|
|
|
#define RDATA_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\""
|
|
|
|
|
|
|
|
|
|
/* A list of other sections which the compiler might be "in" at any
|
|
|
|
|
given time. */
|
|
|
|
|
|
|
|
|
|
#undef EXTRA_SECTIONS
|
|
|
|
|
#define EXTRA_SECTIONS SUBTARGET_EXTRA_SECTIONS in_rdata
|
|
|
|
|
|
|
|
|
|
#define SUBTARGET_EXTRA_SECTIONS
|
|
|
|
|
|
|
|
|
|
/* A list of extra section function definitions. */
|
|
|
|
|
|
|
|
|
|
#undef EXTRA_SECTION_FUNCTIONS
|
|
|
|
|
#define EXTRA_SECTION_FUNCTIONS \
|
|
|
|
|
RDATA_SECTION_FUNCTION \
|
|
|
|
|
SUBTARGET_EXTRA_SECTION_FUNCTIONS
|
|
|
|
|
|
|
|
|
|
#define SUBTARGET_EXTRA_SECTION_FUNCTIONS
|
|
|
|
|
|
|
|
|
|
#define RDATA_SECTION_FUNCTION \
|
|
|
|
|
void \
|
|
|
|
|
rdata_section () \
|
|
|
|
|
{ \
|
|
|
|
|
if (in_section != in_rdata) \
|
|
|
|
|
{ \
|
|
|
|
|
fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP); \
|
|
|
|
|
in_section = in_rdata; \
|
|
|
|
|
} \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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
|