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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [i386/] [gas.h] - Blame information for rev 709

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1 709 jeremybenn
/* Definitions for Intel 386 using GAS.
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   Copyright (C) 1988, 1993, 1994, 1996, 2002, 2004, 2007, 2008
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   Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3.  If not see
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<http://www.gnu.org/licenses/>.  */
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/* Note that i386/seq-gas.h is a GAS configuration that does not use this
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   file.  */
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/* Use the bsd assembler syntax.  */
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/* we need to do this because gas is really a bsd style assembler,
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 * and so doesn't work well this these att-isms:
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 *
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 *  ASM_OUTPUT_SKIP is .set .,.+N, which isn't implemented in gas
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 *  ASM_OUTPUT_LOCAL is done with .set .,.+N, but that can't be
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 *   used to define bss static space
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 *
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 * Next is the question of whether to uses underscores.  RMS didn't
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 * like this idea at first, but since it is now obvious that we
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 * need this separate tm file for use with gas, at least to get
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 * dbx debugging info, I think we should also switch to underscores.
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 * We can keep i386v for real att style output, and the few
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 * people who want both form will have to compile twice.
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 */
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/* these come from i386/bsd.h, but are specific to sequent */
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#undef DBX_NO_XREFS
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#undef DBX_CONTIN_LENGTH
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/* Ask for COFF symbols.  */
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#define SDB_DEBUGGING_INFO 1
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/* Output #ident as a .ident.  */
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#define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
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/* In the past there was confusion as to what the argument to .align was
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   in GAS.  For the last several years the rule has been this: for a.out
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   file formats that argument is LOG, and for all other file formats the
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   argument is 1<<LOG.
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   However, GAS now has .p2align and .balign pseudo-ops so to remove any
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   doubt or guess work, and since this file is used for both a.out and other
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   file formats, we use one of them.  */
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#ifdef HAVE_GAS_BALIGN_AND_P2ALIGN 
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#undef ASM_OUTPUT_ALIGN
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#define ASM_OUTPUT_ALIGN(FILE,LOG) \
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  if ((LOG)!=0) fprintf ((FILE), "\t.balign %d\n", 1<<(LOG))
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#endif
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/* A C statement to output to the stdio stream FILE an assembler
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   command to advance the location counter to a multiple of 1<<LOG
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   bytes if it is within MAX_SKIP bytes.
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   This is used to align code labels according to Intel recommendations.  */
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#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
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#  define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
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     if ((LOG) != 0) {\
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       if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
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       else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
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     }
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#endif
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/* A C statement or statements which output an assembler instruction
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   opcode to the stdio stream STREAM.  The macro-operand PTR is a
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   variable of type `char *' which points to the opcode name in its
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   "internal" form--the form that is written in the machine description.
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   GAS version 1.38.1 doesn't understand the `repz' opcode mnemonic.
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   So use `repe' instead.  */
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#undef ASM_OUTPUT_OPCODE
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#define ASM_OUTPUT_OPCODE(STREAM, PTR)  \
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{                                                                       \
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  if ((PTR)[0] == 'r'                                                    \
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      && (PTR)[1] == 'e'                                                \
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      && (PTR)[2] == 'p')                                               \
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    {                                                                   \
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      if ((PTR)[3] == 'z')                                              \
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        {                                                               \
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          fputs ("repe", (STREAM));                                     \
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          (PTR) += 4;                                                   \
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        }                                                               \
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      else if ((PTR)[3] == 'n' && (PTR)[4] == 'z')                      \
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        {                                                               \
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          fputs ("repne", (STREAM));                                    \
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          (PTR) += 5;                                                   \
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        }                                                               \
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    }                                                                   \
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  else                                                                  \
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    ASM_OUTPUT_AVX_PREFIX ((STREAM), (PTR));                            \
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}
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/* Define macro used to output shift-double opcodes when the shift
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   count is in %cl.  Some assemblers require %cl as an argument;
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   some don't.
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   GAS requires the %cl argument, so override i386/unix.h.  */
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#undef SHIFT_DOUBLE_OMITS_COUNT
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#define SHIFT_DOUBLE_OMITS_COUNT 0
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/* The comment-starter string as GAS expects it. */
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#undef ASM_COMMENT_START
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#define ASM_COMMENT_START "#"
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#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true

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