contrib/gcc/config/i386/i386-coff.h

   1 /* Definitions for "naked" Intel 386 using coff object format files
   2    and coff debugging info.
   3
   4    Copyright (C) 1994 Free Software Foundation, Inc.
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC 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 2, or (at your option)
  11 any later version.
  12
  13 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23
  24 #include "i386/gas.h"
  25 #include "dbxcoff.h"
  26
  27 /* Specify predefined symbols in preprocessor.  */
  28
  29 #undef CPP_PREDEFINES
  30 #define CPP_PREDEFINES "-Di386"
  31
  32 /* We want to be able to get DBX debugging information via -gstabs.  */
  33
  34 #undef DBX_DEBUGGING_INFO
  35 #define DBX_DEBUGGING_INFO
  36
  37 #undef PREFERRED_DEBUGGING_TYPE
  38 #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
  39
  40 /* Support the ctors and dtors sections for g++.  */
  41
  42 #define CTORS_SECTION_ASM_OP    ".section\t.ctors,\"x\""
  43 #define DTORS_SECTION_ASM_OP    ".section\t.dtors,\"x\""
  44
  45 /* A list of other sections which the compiler might be "in" at any
  46    given time.  */
  47
  48 #undef EXTRA_SECTIONS
  49 #define EXTRA_SECTIONS in_ctors, in_dtors
  50
  51 /* A list of extra section function definitions.  */
  52
  53 #undef EXTRA_SECTION_FUNCTIONS
  54 #define EXTRA_SECTION_FUNCTIONS                                         \
  55   CTORS_SECTION_FUNCTION                                                \
  56   DTORS_SECTION_FUNCTION
  57
  58 #define CTORS_SECTION_FUNCTION                                          \
  59 void                                                                    \
  60 ctors_section ()                                                        \
  61 {                                                                       \
  62   if (in_section != in_ctors)                                           \
  63     {                                                                   \
  64       fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP);             \
  65       in_section = in_ctors;                                            \
  66     }                                                                   \
  67 }
  68
  69 #define DTORS_SECTION_FUNCTION                                          \
  70 void                                                                    \
  71 dtors_section ()                                                        \
  72 {                                                                       \
  73   if (in_section != in_dtors)                                           \
  74     {                                                                   \
  75       fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP);             \
  76       in_section = in_dtors;                                            \
  77     }                                                                   \
  78 }
  79
  80 #define INT_ASM_OP ".long"
  81
  82 /* A C statement (sans semicolon) to output an element in the table of
  83    global constructors.  */
  84 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)                               \
  85   do {                                                                  \
  86     ctors_section ();                                                   \
  87     fprintf (FILE, "\t%s\t ", INT_ASM_OP);                              \
  88     assemble_name (FILE, NAME);                                         \
  89     fprintf (FILE, "\n");                                               \
  90   } while (0)
  91
  92 /* A C statement (sans semicolon) to output an element in the table of
  93    global destructors.  */
  94 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)                                \
  95   do {                                                                  \
  96     dtors_section ();                                                   \
  97     fprintf (FILE, "\t%s\t ", INT_ASM_OP);                              \
  98     assemble_name (FILE, NAME);                                         \
  99     fprintf (FILE, "\n");                                               \
 100   } while (0)
 101
 102
 103 /* end of i386-coff.h */