gcc/config/mips/iris6.h

   1 /* Definitions of target machine for GNU compiler.  IRIX version 6.
   2    Copyright (C) 1994, 1995, 1996, 1997, 1998, 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 /* Allow some special handling for IRIX 6.  */
  23 #undef TARGET_IRIX6
  24 #define TARGET_IRIX6 1
  25
  26 /* Default to -mabi=n32 and -mips3.  */
  27 #undef MULTILIB_DEFAULTS
  28 #define MULTILIB_DEFAULTS { "mabi=n32" }
  29
  30 /* Force the default ABI onto the command line in order to make the specs
  31    easier to write.  Default to the mips2 ISA for the O32 ABI.  */
  32 #define DRIVER_SELF_SPECS \
  33   "%{!mabi=*: -mabi=n32}", \
  34   "%{mabi=32: %{!mips*: -mips2}}"
  35
  36 /* Force the generation of dwarf .debug_frame sections even if not
  37    compiling -g.  This guarantees that we can unwind the stack.  */
  38 #define DWARF2_FRAME_INFO 1
  39
  40 #undef MACHINE_TYPE
  41 #define MACHINE_TYPE "SGI running IRIX 6.x"
  42
  43 #ifdef IRIX_USING_GNU_LD
  44 #define IRIX_SUBTARGET_LINK_SPEC \
  45   "%{mabi=32: -melf32bsmip}%{mabi=n32: -melf32bmipn32}%{mabi=64: -melf64bmip}"
  46 #else
  47 #define IRIX_SUBTARGET_LINK_SPEC \
  48   "%{w} -_SYSTYPE_SVR4 -woff 131 \
  49    %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}"
  50 #endif
  51
  52 /* Profiling is supported via libprof1.a not -lc_p as in IRIX 3.  */
  53 #undef STARTFILE_SPEC
  54 #define STARTFILE_SPEC \
  55   "%{!shared: \
  56      %{mabi=32:%{pg:gcrt1.o%s} \
  57        %{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
  58      %{mabi=n32: \
  59        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
  60          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
  61            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
  62        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
  63          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
  64            %{!p:/usr/lib32/mips3/crt1.o%s}}}} \
  65      %{mabi=64: \
  66        %{mips4:%{pg:/usr/lib64/mips4/gcrt1.o} \
  67          %{!pg:%{p:/usr/lib64/mips4/mcrt1.o /usr/lib64/mips4/libprof1.a} \
  68            %{!p:/usr/lib64/mips4/crt1.o}}} \
  69        %{!mips4:%{pg:/usr/lib64/mips3/gcrt1.o} \
  70          %{!pg:%{p:/usr/lib64/mips3/mcrt1.o /usr/lib64/mips3/libprof1.a} \
  71            %{!p:/usr/lib64/mips3/crt1.o}}}}} \
  72   irix-crti.o%s crtbegin.o%s"
  73
  74 #ifdef IRIX_USING_GNU_LD
  75 #define SUBTARGET_DONT_WARN_UNUSED_SPEC ""
  76 #define SUBTARGET_WARN_UNUSED_SPEC ""
  77 #else
  78 #define SUBTARGET_DONT_WARN_UNUSED_SPEC "-dont_warn_unused"
  79 #define SUBTARGET_WARN_UNUSED_SPEC "-warn_unused"
  80 #endif
  81
  82 #undef LIB_SPEC
  83 #define LIB_SPEC \
  84   "%{mabi=n32: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
  85      -L/usr/lib32} \
  86    %{mabi=64: %{mips4:-L/usr/lib64/mips4} %{!mips4:-L/usr/lib64/mips3} \
  87      -L/usr/lib64} \
  88    %{!shared:" \
  89      SUBTARGET_DONT_WARN_UNUSED_SPEC \
  90      " %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc " \
  91      SUBTARGET_WARN_UNUSED_SPEC "}"
  92
  93 /* Avoid getting two warnings for libgcc.a everytime we link.  */
  94 #undef LIBGCC_SPEC
  95 #define LIBGCC_SPEC \
  96   SUBTARGET_DONT_WARN_UNUSED_SPEC " -lgcc " SUBTARGET_WARN_UNUSED_SPEC
  97
  98 #undef ENDFILE_SPEC
  99 #define ENDFILE_SPEC \
 100   "crtend.o%s irix-crtn.o%s \
 101    %{!shared: \
 102      %{mabi=32:crtn.o%s}\
 103      %{mabi=n32:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 104        %{!mips4:/usr/lib32/mips3/crtn.o%s}}\
 105      %{mabi=64:%{mips4:/usr/lib64/mips4/crtn.o%s}\
 106        %{!mips4:/usr/lib64/mips3/crtn.o%s}}}"
 107
 108 #define MIPS_TFMODE_FORMAT mips_extended_format