gcc/config/i386/bsd.h

   1 /* Definitions for BSD assembler syntax for Intel 386
   2    (actually AT&T syntax for insns and operands,
   3    adapted to BSD conventions for symbol names and debugging.)
   4    Copyright (C) 1988, 1996, 2000, 2002, 2007, 2008
   5    Free Software Foundation, Inc.
   6
   7 This file is part of GCC.
   8
   9 GCC 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 3, or (at your option)
  12 any later version.
  13
  14 GCC 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 GCC; see the file COPYING3.  If not see
  21 <http://www.gnu.org/licenses/>.  */
  22
  23 /* Use the Sequent Symmetry assembler syntax.  */
  24 \f
  25 /* Define the syntax of pseudo-ops, labels and comments.  */
  26
  27 /* Prefix for internally generated assembler labels.  If we aren't using
  28    underscores, we are using prefix `.'s to identify labels that should
  29    be ignored, as in `i386/gas.h' --karl@cs.umb.edu  */
  30
  31 #define LPREFIX "L"
  32
  33 /* Assembler pseudos to introduce constants of various size.  */
  34
  35 #define ASM_BYTE "\t.byte\t"
  36 #define ASM_SHORT "\t.word\t"
  37 #define ASM_LONG "\t.long\t"
  38 #define ASM_QUAD "\t.quad\t"  /* Should not be used for 32bit compilation.  */
  39
  40 /* This was suggested, but it shouldn't be right for DBX output. -- RMS
  41    #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
  42
  43 \f
  44 /* Define the syntax of labels and symbol definitions/declarations.  */
  45
  46 /* This is how to output an assembler line
  47    that says to advance the location counter by SIZE bytes.  */
  48
  49 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
  50   fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", (SIZE))
  51 \f
  52 /* Define the syntax of labels and symbol definitions/declarations.  */
  53
  54 /* This says how to output an assembler line
  55    to define a global common symbol.  */
  56
  57 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
  58 ( fputs (".comm ", (FILE)),                     \
  59   assemble_name ((FILE), (NAME)),               \
  60   fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
  61
  62 /* This says how to output an assembler line
  63    to define a local common symbol.  */
  64
  65 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
  66 ( fputs (".lcomm ", (FILE)),                    \
  67   assemble_name ((FILE), (NAME)),               \
  68   fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
  69
  70 #ifdef HAVE_GAS_LCOMM_WITH_ALIGNMENT
  71 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGNMENT)  \
  72 ( fputs (".lcomm ", (FILE)),                    \
  73   assemble_name ((FILE), (NAME)),               \
  74   fprintf ((FILE), ",%u,%u\n", (int)(SIZE), (int)(ALIGNMENT) / BITS_PER_UNIT))
  75 #endif
  76
  77 /* This is how to output an assembler line
  78    that says to advance the location counter
  79    to a multiple of 2**LOG bytes.  */
  80
  81 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
  82   if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", (LOG))
  83
  84 /* This is how to store into the string BUF
  85    the symbol_ref name of an internal numbered label where
  86    PREFIX is the class of label and NUM is the number within the class.
  87    This is suitable for output with `assemble_name'.  */
  88
  89 #define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER)  \
  90     sprintf ((BUF), "*%s%ld", (PREFIX), (long)(NUMBER))
  91
  92 /* The prefix to add to user-visible assembler symbols.  */
  93
  94 #define USER_LABEL_PREFIX "_"
  95
  96 /* Sequent has some changes in the format of DBX symbols.  */
  97 #define DBX_NO_XREFS 1
  98
  99 /* Don't split DBX symbols into continuations.  */
 100 #define DBX_CONTIN_LENGTH 0