gcc/config/mips/iris5gas.h

   1 /* Definitions of target machine for GNU compiler.  IRIX version 5 with gas.
   2    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING.  If not, write to
  19    the Free Software Foundation, 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 /* Reenable debugging.  */
  23 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  24
  25 /* GNU as does handle DWARF2 directives.  */
  26 #undef DWARF2_UNWIND_INFO
  27 #define DWARF2_UNWIND_INFO 1
  28
  29 /* Override iris5.h version to invoke [cd]tors and register eh frame
  30    information.  */
  31 #undef LINK_SPEC
  32 #define LINK_SPEC "\
  33 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
  34 %{bestGnum} %{shared} %{non_shared} \
  35 %{call_shared} %{no_archive} %{exact_version} \
  36 %{static: -non_shared} \
  37 %{!static: \
  38   %{!shared:%{!non_shared:%{!call_shared: -call_shared -no_unresolved}}}} \
  39 %{rpath} -init __do_global_ctors -fini __do_global_dtors \
  40 %{shared:-hidden_symbol __do_global_ctors,__do_global_ctors_1,__do_global_dtors} \
  41 -_SYSTYPE_SVR4"
  42
  43 /* Override iris5.h versions to include crtbegin.o and crtend.o.  */
  44
  45 #undef STARTFILE_SPEC
  46 #define STARTFILE_SPEC "%(irix_startfile_spec) crtbegin.o%s"
  47
  48 #undef ENDFILE_SPEC
  49 #define ENDFILE_SPEC "crtend.o%s %(irix_endfile_spec)"
  50
  51 /* Irix 5 does not have some strange restrictions that Irix 3 had.  */
  52 #undef SET_FILE_NUMBER
  53 #define SET_FILE_NUMBER() ++num_source_filenames
  54 #undef LABEL_AFTER_LOC
  55 #define LABEL_AFTER_LOC(STREAM)
  56
  57 /* We need to use .esize and .etype instead of .size and .type to
  58    avoid conflicting with ELF directives.  These are only recognized
  59    by gas, anyhow, not the native assembler.  */
  60 #undef PUT_SDB_SIZE
  61 #define PUT_SDB_SIZE(a)                                 \
  62 do {                                                    \
  63   fprintf (asm_out_file, "\t.esize\t" HOST_WIDE_INT_PRINT_DEC ";", \
  64            (HOST_WIDE_INT) (a));                        \
  65 } while (0)
  66
  67 #undef PUT_SDB_TYPE
  68 #define PUT_SDB_TYPE(a)                                 \
  69 do {                                                    \
  70   fprintf (asm_out_file, "\t.etype\t0x%x;", (a));       \
  71 } while (0)
  72
  73 /* Add -g to mips.h default to avoid confusing gas with local symbols
  74    generated from stabs info.  */
  75 #undef NM_FLAGS
  76 #define NM_FLAGS "-Bng"
  77
  78 /* Disable SHF_MERGE support.  Even if gas supports it, the IRIX ld does not
  79    without a special elspec(5) file.
  80
  81    FIXME: Only do this if not using GNU ld.  */
  82 #undef HAVE_GAS_SHF_MERGE
  83 #define HAVE_GAS_SHF_MERGE 0