gcc/config/i386/sysv4.h

   1 /* Target definitions for GCC for Intel 80386 running System V.4
   2    Copyright (C) 1991-2017 Free Software Foundation, Inc.
   3
   4    Written by Ron Guilmette (rfg@netcom.com).
   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 /* Output at beginning of assembler file.  */
  23 /* The .file command should always begin the output.  */
  24
  25 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
  26 #undef X86_FILE_START_VERSION_DIRECTIVE
  27 #define X86_FILE_START_VERSION_DIRECTIVE true
  28
  29 #undef DBX_REGISTER_NUMBER
  30 #define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]
  31
  32 /* A C statement (sans semicolon) to output to the stdio stream
  33    FILE the assembler definition of uninitialized global DECL named
  34    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
  35    Try to use asm_output_aligned_bss to implement this macro.  */
  36
  37 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
  38   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
  39
  40 /* Handle special EH pointer encodings.  Absolute, pc-relative, and
  41    indirect are handled automatically.  */
  42 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
  43   do {                                                                  \
  44     if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel)         \
  45       {                                                                 \
  46         fputs (ASM_LONG, (FILE));                                       \
  47         assemble_name (FILE, XSTR (ADDR, 0));                           \
  48         fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), (FILE)); \
  49         goto DONE;                                                      \
  50       }                                                                 \
  51   } while (0)