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) 1988-2018 Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 /* Use the Sequent Symmetry assembler syntax.  */
  23 \f
  24 /* Define the syntax of pseudo-ops, labels and comments.  */
  25
  26 /* Prefix for internally generated assembler labels.  If we aren't using
  27    underscores, we are using prefix `.'s to identify labels that should
  28    be ignored, as in `i386/gas.h' --karl@cs.umb.edu  */
  29
  30 #define LPREFIX "L"
  31
  32 /* Assembler pseudos to introduce constants of various size.  */
  33
  34 #define ASM_BYTE "\t.byte\t"
  35 #define ASM_SHORT "\t.word\t"
  36 #define ASM_LONG "\t.long\t"
  37 #define ASM_QUAD "\t.quad\t"  /* Should not be used for 32bit compilation.  */
  38
  39 /* This was suggested, but it shouldn't be right for DBX output. -- RMS
  40    #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
  41
  42 \f
  43 /* Define the syntax of labels and symbol definitions/declarations.  */
  44
  45 /* This is how to output an assembler line
  46    that says to advance the location counter by SIZE bytes.  */
  47
  48 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
  49   fprintf (FILE, "\t.space " HOST_WIDE_INT_PRINT_UNSIGNED"\n", (SIZE))
  50 \f
  51 /* Define the syntax of labels and symbol definitions/declarations.  */
  52
  53 /* This says how to output an assembler line
  54    to define a global common symbol.  */
  55
  56 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
  57 ( fputs (".comm ", (FILE)),                     \
  58   assemble_name ((FILE), (NAME)),               \
  59   fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
  60
  61 /* This says how to output an assembler line
  62    to define a local common symbol.  */
  63
  64 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
  65 ( fputs (".lcomm ", (FILE)),                    \
  66   assemble_name ((FILE), (NAME)),               \
  67   fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
  68
  69 #ifdef HAVE_GAS_LCOMM_WITH_ALIGNMENT
  70 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGNMENT)  \
  71 ( fputs (".lcomm ", (FILE)),                    \
  72   assemble_name ((FILE), (NAME)),               \
  73   fprintf ((FILE), ",%u,%u\n", (int)(SIZE), (int)(ALIGNMENT) / BITS_PER_UNIT))
  74 #endif
  75
  76 /* This is how to output an assembler line
  77    that says to advance the location counter
  78    to a multiple of 2**LOG bytes.  */
  79
  80 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
  81   if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", (LOG))
  82
  83 /* This is how to store into the string BUF
  84    the symbol_ref name of an internal numbered label where
  85    PREFIX is the class of label and NUM is the number within the class.
  86    This is suitable for output with `assemble_name'.  */
  87
  88 #define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER)  \
  89     sprintf ((BUF), "*%s%ld", (PREFIX), (long)(NUMBER))
  90
  91 /* The prefix to add to user-visible assembler symbols.  */
  92
  93 #define USER_LABEL_PREFIX "_"
  94
  95 /* Sequent has some changes in the format of DBX symbols.  */
  96 #define DBX_NO_XREFS 1
  97
  98 /* Don't split DBX symbols into continuations.  */
  99 #define DBX_CONTIN_LENGTH 0