[thirdparty/gcc.git] / gcc / config / i386 / rtemself.h

/* Definitions for Intel 386 running Linux-based GNU systems with ELF format.
   Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000
   Free Software Foundation, Inc.
   Contributed by Eric Youngdale.
   Modified for stabs-in-ELF by H.J. Lu.

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.  */

#define LINUX_DEFAULT_ELF

/* A lie, I guess, but the general idea behind linux/ELF is that we are
   supposed to be outputting something that will assemble under SVr4.
   This gets us pretty close.  */
#include <i386/i386.h>	/* Base i386 target machine definitions */
#include <i386/att.h>	/* Use the i386 AT&T assembler syntax */
#include <linux.h>	/* some common stuff */

#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (i386 RTEMS with ELF)");

/* The svr4 ABI for the i386 says that records and unions are returned
   in memory.  */
#undef DEFAULT_PCC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 1

/* This is how to output an element of a case-vector that is relative.
   This is only used for PIC code.  See comments by the `casesi' insn in
   i386.md for an explanation of the expression this outputs. */
#undef ASM_OUTPUT_ADDR_DIFF_ELT
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)

/* Indicate that jump tables go in the text section.  This is
   necessary when compiling PIC code.  */
#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)

#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]

/* Output assembler code to FILE to increment profiler label # LABELNO
   for profiling a function entry.  */

#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO)  \
{									\
  if (flag_pic)								\
    {									\
      fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%edx\n",		\
	       LPREFIX, (LABELNO));					\
      fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n");			\
    }									\
  else									\
    {									\
      fprintf (FILE, "\tmovl $%sP%d,%%edx\n", LPREFIX, (LABELNO));	\
      fprintf (FILE, "\tcall mcount\n");				\
    }									\
}

#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
 
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
  
#undef WCHAR_TYPE
#define WCHAR_TYPE "long int"
   
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD
    
#undef CPP_PREDEFINES
#define CPP_PREDEFINES  "-Drtems -D__rtems__ -Asystem=rtems"

/* A C statement (sans semicolon) to output to the stdio stream
   FILE the assembler definition of uninitialized global DECL named
   NAME whose size is SIZE bytes and alignment is ALIGN bytes.
   Try to use asm_output_aligned_bss to implement this macro.  */

#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
  asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)

#undef STARTFILE_SPEC
#define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"

#undef ENDFILE_SPEC
#define ENDFILE_SPEC   "crtend.o%s crtn.o%s"

/* Get machine-independent configuration parameters for RTEMS.  */
#include <rtems.h>

/* end of i386/rtemself.h */
Commit	Line	Data
ef78c245	1	/* Definitions for Intel 386 running Linux-based GNU systems with ELF format.
4592bdcb JL	2	Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000
4592bdcb JL	3	Free Software Foundation, Inc.
ef78c245 JL	4	Contributed by Eric Youngdale.
	5	Modified for stabs-in-ELF by H.J. Lu.
	6
	7	This file is part of GNU CC.
	8
	9	GNU CC is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2, or (at your option)
	12	any later version.
	13
	14	GNU CC is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with GNU CC; see the file COPYING. If not, write to
	21	the Free Software Foundation, 59 Temple Place - Suite 330,
	22	Boston, MA 02111-1307, USA. */
	23
	24	#define LINUX_DEFAULT_ELF
	25
	26	/* A lie, I guess, but the general idea behind linux/ELF is that we are
	27	supposed to be outputting something that will assemble under SVr4.
	28	This gets us pretty close. */
	29	#include <i386/i386.h> /* Base i386 target machine definitions */
	30	#include <i386/att.h> /* Use the i386 AT&T assembler syntax */
	31	#include <linux.h> /* some common stuff */
	32
	33	#undef TARGET_VERSION
	34	#define TARGET_VERSION fprintf (stderr, " (i386 RTEMS with ELF)");
	35
	36	/* The svr4 ABI for the i386 says that records and unions are returned
	37	in memory. */
	38	#undef DEFAULT_PCC_STRUCT_RETURN
	39	#define DEFAULT_PCC_STRUCT_RETURN 1
	40
	41	/* This is how to output an element of a case-vector that is relative.
	42	This is only used for PIC code. See comments by the `casesi' insn in
	43	i386.md for an explanation of the expression this outputs. */
	44	#undef ASM_OUTPUT_ADDR_DIFF_ELT
b098f56d	45	#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
ef78c245 JL	46	fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
	47
	48	/* Indicate that jump tables go in the text section. This is
	49	necessary when compiling PIC code. */
b098f56d	50	#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
ef78c245	51
ef78c245	52	#undef DBX_REGISTER_NUMBER
83774849	53	#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
ef78c245 JL	54
	55	/* Output assembler code to FILE to increment profiler label # LABELNO
	56	for profiling a function entry. */
	57
	58	#undef FUNCTION_PROFILER
	59	#define FUNCTION_PROFILER(FILE, LABELNO) \
	60	{ \
	61	if (flag_pic) \
	62	{ \
	63	fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%edx\n", \
	64	LPREFIX, (LABELNO)); \
	65	fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \
	66	} \
	67	else \
	68	{ \
	69	fprintf (FILE, "\tmovl $%sP%d,%%edx\n", LPREFIX, (LABELNO)); \
	70	fprintf (FILE, "\tcall mcount\n"); \
	71	} \
	72	}
	73
	74	#undef SIZE_TYPE
	75	#define SIZE_TYPE "unsigned int"
	76
	77	#undef PTRDIFF_TYPE
	78	#define PTRDIFF_TYPE "int"
	79
	80	#undef WCHAR_TYPE
	81	#define WCHAR_TYPE "long int"
	82
	83	#undef WCHAR_TYPE_SIZE
	84	#define WCHAR_TYPE_SIZE BITS_PER_WORD
	85
	86	#undef CPP_PREDEFINES
2b57e919	87	#define CPP_PREDEFINES "-Drtems -D__rtems__ -Asystem=rtems"
ef78c245	88
ef78c245 JL	89	/* A C statement (sans semicolon) to output to the stdio stream
	90	FILE the assembler definition of uninitialized global DECL named
	91	NAME whose size is SIZE bytes and alignment is ALIGN bytes.
	92	Try to use asm_output_aligned_bss to implement this macro. */
	93
	94	#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
	95	asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
	96
	97	#undef STARTFILE_SPEC
d1476635	98	#define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"
ef78c245 JL	99
ef78c245 JL	100	#undef ENDFILE_SPEC
d1476635 JS	101	#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
d1476635 JS	102
6e5138f0 JS	103	/* Get machine-independent configuration parameters for RTEMS. */
	104	#include <rtems.h>
	105
	106	/* end of i386/rtemself.h */