gcc/config/mips/osfrose.h

   1 /* Definitions of target machine for GNU compiler.
   2    DECstation (OSF/1 reference port with OSF/rose) version.
   3    Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC 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 GNU CC 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 GNU CC; 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 #define DECSTATION
  23 #define OSF_OS
  24
  25 #define HALF_PIC_DEBUG  TARGET_DEBUG_B_MODE
  26 #define HALF_PIC_PREFIX "$Lp."
  27
  28 #include "halfpic.h"
  29
  30 #define WORD_SWITCH_TAKES_ARG(STR)                                      \
  31  (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) || !strcmp (STR, "pic-names"))
  32
  33 #define CPP_PREDEFINES "\
  34 -DOSF -DOSF1 -Dbsd4_2 -DMIPSEL -Dhost_mips -Dmips -Dunix -DR3000 -DSYSTYPE_BSD \
  35 -Asystem(unix) -Asystem(xpg4) -Acpu(mips) -Amachine(mips)"
  36
  37 #define SUBTARGET_CPP_SIZE_SPEC "\
  38 %{mlong64:-D__PTRDIFF_TYPE__=long\\ int} \
  39 %{!mlong64:-D__PTRDIFF_TYPE__=int}"
  40
  41 #define SUBTARGET_CPP_SPEC "\
  42 %{.S:   %{!ansi:%{!traditional:%{!traditional-cpp:%{!ftraditional: -traditional}}}}} \
  43 %{.s:   %{!ansi:%{!traditional:%{!traditional-cpp:%{!ftraditional: -traditional}}}}}"
  44
  45 /* ??? This assumes that GNU as is always used with GNU ld, and MIPS as is
  46    always used with MIPS ld.  */
  47 #define LINK_SPEC "\
  48 %{G*} %{EL} %{EB} %{mips1} %{mips2} %{mips3} \
  49 %{bestGnum} \
  50 %{!mmips-as: \
  51         %{v*: -v} \
  52         %{!noshrlib: %{pic-none: -noshrlib} %{!pic-none: -warn_nopic}} \
  53         %{nostdlib} %{noshrlib} %{glue}}"
  54
  55 #define LIB_SPEC "-lc"
  56
  57 /* Define this macro meaning that `gcc' should find the library
  58    `libgcc.a' by hand, rather than passing the argument `-lgcc' to
  59    tell the linker to do the search. */
  60
  61 #define LINK_LIBGCC_SPECIAL 1
  62
  63 #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
  64
  65 #define MACHINE_TYPE "DECstation with OSF/rose objects"
  66
  67 #ifndef MD_EXEC_PREFIX
  68 #define MD_EXEC_PREFIX          "/usr/ccs/gcc/"
  69 #endif
  70
  71 #ifndef MD_STARTFILE_PREFIX
  72 #define MD_STARTFILE_PREFIX     "/usr/ccs/lib/"
  73 #endif
  74
  75 /* Turn on -mpic-extern by default.  */
  76 #define CC1_SPEC "\
  77 %{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \
  78 %{mips1:-mfp32 -mgp32} %{mips2:-mfp32 -mgp32} %{mips3:-mfp64 -mgp64} \
  79 %{G*} \
  80 %{pic-none:   -mno-half-pic} \
  81 %{pic-lib:    -mhalf-pic} \
  82 %{pic-extern: -mhalf-pic} \
  83 %{pic-calls:  -mhalf-pic} \
  84 %{pic-names*: -mhalf-pic} \
  85 %{!pic-*:     -mhalf-pic}"
  86
  87 /* Specify size_t and wchar_t types.  */
  88 #define SIZE_TYPE       "long unsigned int"
  89 #define WCHAR_TYPE      "unsigned int"
  90 #define WCHAR_TYPE_SIZE BITS_PER_WORD
  91 #define MAX_WCHAR_TYPE_SIZE MAX_LONG_TYPE_SIZE
  92
  93 /* OSF/1 uses gas, not the mips assembler.  */
  94 #define TARGET_DEFAULT MASK_GAS
  95
  96 /* OSF/rose uses stabs, not ECOFF.  */
  97 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  98
  99 /* enable dwarf debugging for testing */
 100 #define DWARF_DEBUGGING_INFO
 101 /* This is needed by dwarfout.c.  */
 102 #define SET_ASM_OP      ".set"
 103
 104 /* Tell collect that the object format is OSF/rose.  */
 105 #define OBJECT_FORMAT_ROSE
 106
 107 /* Tell collect where the appropriate binaries are.  */
 108 #define REAL_LD_FILE_NAME       "/usr/ccs/gcc/gld"
 109 #define REAL_NM_FILE_NAME       "/usr/ccs/bin/nm"
 110 #define REAL_STRIP_FILE_NAME    "/usr/ccs/bin/strip"
 111
 112 /* Default to -G 0 unless doing ecoff work.  */
 113 #define MIPS_DEFAULT_GVALUE ((TARGET_MIPS_AS) ? 8 : 0)
 114
 115 /* Use atexit for static constructors/destructors, instead of defining
 116    our own exit function.  */
 117 #define HAVE_ATEXIT
 118
 119 /* Generate calls to memcpy, etc., not bcopy, etc.  */
 120 #define TARGET_MEM_FUNCTIONS
 121
 122 /* A C statement to output assembler commands which will identify
 123    the object file as having been compiled with GNU CC (or another
 124    GNU compiler).
 125
 126    If you don't define this macro, the string `gcc2_compiled.:' is
 127    output.  This string is calculated to define a symbol which, on
 128    BSD systems, will never be defined for any other reason.  GDB
 129    checks for the presence of this symbol when reading the symbol
 130    table of an executable.
 131
 132    On non-BSD systems, you must arrange communication with GDB in
 133    some other fashion.  If GDB is not used on your system, you can
 134    define this macro with an empty body.
 135
 136    On OSF/1, gcc2_compiled. confuses the kernel debugger, so don't
 137    put it out.  */
 138
 139 #define ASM_IDENTIFY_GCC(STREAM)
 140
 141 /* Identify the front-end which produced this file.  To keep symbol
 142    space down, and not confuse kdb, only do this if the language is
 143    not C.  */
 144
 145 #define ASM_IDENTIFY_LANGUAGE(STREAM)                                   \
 146 {                                                                       \
 147   if (strcmp (lang_identify (), "c") != 0)                              \
 148     output_lang_identify (STREAM);                                      \
 149 }
 150
 151 #include "mips/mips.h"