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    2005
   4    Free Software Foundation, Inc.
   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 2, 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 COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23 /* Allow some special handling for IRIX 6.  */
  24 #undef TARGET_IRIX6
  25 #define TARGET_IRIX6 1
  26
  27 /* Default to -mabi=n32 and -mips3.  */
  28 #undef MULTILIB_DEFAULTS
  29 #define MULTILIB_DEFAULTS { "mabi=n32" }
  30
  31 /* Force the default ABI onto the command line in order to make the specs
  32    easier to write.  Default to the mips2 ISA for the O32 ABI.  */
  33 #define DRIVER_SELF_SPECS \
  34   "%{!mabi=*: -mabi=n32}", \
  35   "%{mabi=32: %{!mips*: -mips2}}"
  36
  37 /* Force the generation of dwarf .debug_frame sections even if not
  38    compiling -g.  This guarantees that we can unwind the stack.  */
  39 #define DWARF2_FRAME_INFO 1
  40
  41 #undef MACHINE_TYPE
  42 #define MACHINE_TYPE "SGI running IRIX 6.x"
  43
  44 #ifdef IRIX_USING_GNU_LD
  45 #define IRIX_SUBTARGET_LINK_SPEC \
  46   "%{mabi=32: -melf32bsmip}%{mabi=n32: -melf32bmipn32}%{mabi=64: -melf64bmip}"
  47 #else
  48 #define IRIX_SUBTARGET_LINK_SPEC \
  49   "%{w} -_SYSTYPE_SVR4 -woff 131 \
  50    %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}"
  51 #endif
  52
  53 /* Profiling is supported via libprof1.a not -lc_p as in IRIX 3.  */
  54 #undef STARTFILE_SPEC
  55 #define STARTFILE_SPEC \
  56   "%{!shared: \
  57      %{mabi=32:%{pg:gcrt1.o%s} \
  58        %{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
  59      %{mabi=n32: \
  60        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
  61          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
  62            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
  63        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
  64          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
  65            %{!p:/usr/lib32/mips3/crt1.o%s}}}} \
  66      %{mabi=64: \
  67        %{mips4:%{pg:/usr/lib64/mips4/gcrt1.o} \
  68          %{!pg:%{p:/usr/lib64/mips4/mcrt1.o /usr/lib64/mips4/libprof1.a} \
  69            %{!p:/usr/lib64/mips4/crt1.o}}} \
  70        %{!mips4:%{pg:/usr/lib64/mips3/gcrt1.o} \
  71          %{!pg:%{p:/usr/lib64/mips3/mcrt1.o /usr/lib64/mips3/libprof1.a} \
  72            %{!p:/usr/lib64/mips3/crt1.o}}}}} \
  73   irix-crti.o%s crtbegin.o%s"
  74
  75 #ifdef IRIX_USING_GNU_LD
  76 #define SUBTARGET_DONT_WARN_UNUSED_SPEC ""
  77 #define SUBTARGET_WARN_UNUSED_SPEC ""
  78 #else
  79 #define SUBTARGET_DONT_WARN_UNUSED_SPEC "-dont_warn_unused"
  80 #define SUBTARGET_WARN_UNUSED_SPEC "-warn_unused"
  81 #endif
  82
  83 #undef LIB_SPEC
  84 #define LIB_SPEC \
  85   "%{mabi=n32: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
  86      -L/usr/lib32} \
  87    %{mabi=64: %{mips4:-L/usr/lib64/mips4} %{!mips4:-L/usr/lib64/mips3} \
  88      -L/usr/lib64} \
  89    %{!shared:" \
  90      SUBTARGET_DONT_WARN_UNUSED_SPEC \
  91      " %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc " \
  92      SUBTARGET_WARN_UNUSED_SPEC "}"
  93
  94 /* Avoid getting two warnings for libgcc.a everytime we link.  */
  95 #undef LIBGCC_SPEC
  96 #define LIBGCC_SPEC \
  97   SUBTARGET_DONT_WARN_UNUSED_SPEC " -lgcc " SUBTARGET_WARN_UNUSED_SPEC
  98
  99 #undef ENDFILE_SPEC
 100 #define ENDFILE_SPEC \
 101   "crtend.o%s irix-crtn.o%s \
 102    %{!shared: \
 103      %{mabi=32:crtn.o%s}\
 104      %{mabi=n32:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 105        %{!mips4:/usr/lib32/mips3/crtn.o%s}}\
 106      %{mabi=64:%{mips4:/usr/lib64/mips4/crtn.o%s}\
 107        %{!mips4:/usr/lib64/mips3/crtn.o%s}}}"
 108
 109 #define MIPS_TFMODE_FORMAT mips_extended_format