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
   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 /* GNU as does handle DWARF2 directives.  */
  23 #undef DWARF2_UNWIND_INFO
  24 #define DWARF2_UNWIND_INFO 1
  25
  26 /* Override iris5.h version to invoke [cd]tors and register eh frame
  27    information.  */
  28 #undef LINK_SPEC
  29 #define LINK_SPEC "\
  30 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
  31 %{bestGnum} %{shared} %{non_shared} \
  32 %{call_shared} %{no_archive} %{exact_version} \
  33 %{static: -non_shared} \
  34 %{!static: \
  35   %{!shared:%{!non_shared:%{!call_shared: -call_shared -no_unresolved}}}} \
  36 %{rpath} -init __do_global_ctors -fini __do_global_dtors \
  37 %{shared:-hidden_symbol __do_global_ctors,__do_global_ctors_1,__do_global_dtors} \
  38 -_SYSTYPE_SVR4"
  39
  40 /* Override iris5.h versions to include crtbegin.o and crtend.o.  */
  41
  42 #undef STARTFILE_SPEC
  43 #define STARTFILE_SPEC "\
  44 %{!static: \
  45   %{!shared:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}}} \
  46 %{static: \
  47   %{pg:gcrt1.o%s} \
  48   %{!pg:%{p:/usr/lib/nonshared/mcrt1.o%s libprof1.a%s} \
  49   %{!p:/usr/lib/nonshared/crt1.o%s}}} \
  50 crtbegin.o%s"
  51
  52 #undef ENDFILE_SPEC
  53 #define ENDFILE_SPEC "crtend.o%s %{!shared:crtn.o%s}"
  54
  55 /* Irix 5 does not have some strange restrictions that Irix 3 had.  */
  56 #undef SET_FILE_NUMBER
  57 #define SET_FILE_NUMBER() ++num_source_filenames
  58 #undef LABEL_AFTER_LOC
  59 #define LABEL_AFTER_LOC(STREAM)
  60
  61 /* We need to use .esize and .etype instead of .size and .type to
  62    avoid conflicting with ELF directives.  These are only recognized
  63    by gas, anyhow, not the native assembler.  */
  64 #undef PUT_SDB_SIZE
  65 #define PUT_SDB_SIZE(a)                                 \
  66 do {                                                    \
  67   fprintf (asm_out_file, "\t.esize\t" HOST_WIDE_INT_PRINT_DEC ";", \
  68            (HOST_WIDE_INT) (a));                        \
  69 } while (0)
  70
  71 #undef PUT_SDB_TYPE
  72 #define PUT_SDB_TYPE(a)                                 \
  73 do {                                                    \
  74   fprintf (asm_out_file, "\t.etype\t0x%x;", (a));       \
  75 } while (0)
  76
  77 /* Switch into a generic section.  */
  78 #undef TARGET_ASM_NAMED_SECTION
  79 #define TARGET_ASM_NAMED_SECTION  default_elf_asm_named_section
  80
  81 /* Add -g to mips.h default to avoid confusing gas with local symbols
  82    generated from stabs info.  */
  83 #undef NM_FLAGS
  84 #define NM_FLAGS "-Bng"
  85
  86 /* Disable SHF_MERGE support.  Even if gas supports it, the IRIX ld does not
  87    without a special elspec(5) file.
  88
  89    FIXME: Only do this if not using GNU ld.  */
  90 #undef HAVE_GAS_SHF_MERGE
  91 #define HAVE_GAS_SHF_MERGE 0