gcc/config/i386/osfrose.h

   1 /* Definitions of target machine for GNU compiler.
   2    Encore Multimax (OSF/1 with OSF/rose) version.
   3    Copyright (C) 1991 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #include "i386gas.h"
  22
  23 #define OSF_OS
  24
  25 /* Use a more friendly abort which prints internal compiler error,
  26    rather than just dumping core.  */
  27
  28 #ifndef abort
  29 #define abort fancy_abort
  30 #endif
  31
  32 /* Prefix that appears before all global/static identifiers, except for
  33    temporary labels.  */
  34
  35 #define IDENTIFIER_PREFIX "_"
  36
  37 /* Suffix that appears after all global/static identifiers, except for
  38    temporary labels.  */
  39
  40 #define IDENTIFIER_SUFFIX ""
  41
  42 /* Change default predefines.  */
  43 #ifdef CPP_PREDEFINES
  44 #undef CPP_PREDEFINES
  45 #endif
  46 #define CPP_PREDEFINES "-DOSF -DOSF1 -Dunix -Di386"
  47
  48 #ifdef  CPP_SPEC
  49 #undef  CPP_SPEC
  50 #endif
  51 #define CPP_SPEC       "%{.S:   -D__LANGUAGE_ASSEMBLY__                 \
  52                                 -D_LANGUAGE_ASSEMBLY                    \
  53                                 %{!ansi:-DLANGUAGE_ASSEMBLY}}           \
  54                          %{!.S: -D__LANGUAGE_C__                        \
  55                                 -D_LANGUAGE_C                           \
  56                                 %{!ansi:-DLANGUAGE_C}}"
  57
  58 #ifdef  CC1_SPEC
  59 #undef  CC1_SPEC
  60 #endif
  61 #define CC1_SPEC       ""
  62
  63 #ifdef ASM_SPEC
  64 #undef ASM_SPEC
  65 #endif
  66 #define ASM_SPEC       ""
  67
  68 #ifdef  LINK_SPEC
  69 #undef  LINK_SPEC
  70 #endif
  71 #define LINK_SPEC      "%{v*: -v}                           \
  72                         %{pic-none: -noshrlib} %{noshrlib}  \
  73                         %{!pic-none: -warn_nopic}           \
  74                         %{nostdlib} %{glue}"
  75
  76 #ifdef  LIB_SPEC
  77 #undef  LIB_SPEC
  78 #endif
  79
  80 /* For now, force static libraries instead of shared, but do so that
  81    does not use -noshrlib, since the old linker does not provide it.  */
  82
  83 #define LIB_SPEC "%{!pic-none: %{!pic-lib: -L/usr/ccs/lib }} -lc"
  84
  85 #ifdef  LIBG_SPEC
  86 #undef  LIBG_SPEC
  87 #endif
  88 #define LIBG_SPEC      ""
  89
  90 #ifdef  STARTFILE_SPEC
  91 #undef  STARTFILE_SPEC
  92 #endif
  93 #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
  94
  95 #ifdef  MACHINE_TYPE
  96 #undef  MACHINE_TYPE
  97 #endif
  98
  99 #define MACHINE_TYPE   ((!TARGET_486) ? "80386 running OSF/1 with OSF/rose objects" :  \
 100                                         "80486 running OSF/1 with OSF/rose objects")
 101
 102 #if 0
 103 #ifdef  MD_EXEC_PREFIX
 104 #undef  MD_EXEC_PREFIX
 105 #endif
 106 #define MD_EXEC_PREFIX          "/usr/ccs/gcc/"
 107
 108 #ifdef  MD_STARTFILE_PREFIX
 109 #undef  MD_STARTFILE_PREFIX
 110 #endif
 111 #define MD_STARTFILE_PREFIX     "/usr/ccs/lib/"
 112 #endif
 113
 114 /* Tell final.c we don't need a label passed to mcount.  */
 115 #define NO_PROFILE_DATA
 116
 117 #undef  FUNCTION_PROFILER
 118 #define FUNCTION_PROFILER(FILE, LABELNO) fprintf (FILE, "\tcall _mcount\n")
 119
 120 /* Tell collect that the object format is OSF/rose.  */
 121 #define OBJECT_FORMAT_ROSE
 122 \f
 123
 124 /* Defines to be able to build gnulib with GCC.  */
 125
 126 #define perform_udivsi3(a,b)                                            \
 127 {                                                                       \
 128   register int dx asm("dx");                                            \
 129   register int ax asm("ax");                                            \
 130                                                                         \
 131   dx = 0;                                                               \
 132   ax = a;                                                               \
 133   asm ("divl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b), "d" (dx)); \
 134   return ax;                                                            \
 135 }
 136
 137 #define perform_divsi3(a,b)                                                     \
 138 {                                                                       \
 139   register int dx asm("dx");                                            \
 140   register int ax asm("ax");                                            \
 141                                                                         \
 142   ax = a;                                                               \
 143   asm ("cltd\n\tidivl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b));  \
 144   return ax;                                                            \
 145 }
 146
 147 #define perform_umodsi3(a,b)                                            \
 148 {                                                                       \
 149   register int dx asm("dx");                                            \
 150   register int ax asm("ax");                                            \
 151                                                                         \
 152   dx = 0;                                                               \
 153   ax = a;                                                               \
 154   asm ("divl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b), "d" (dx)); \
 155   return dx;                                                            \
 156 }
 157
 158 #define perform_modsi3(a,b)                                                     \
 159 {                                                                       \
 160   register int dx asm("dx");                                            \
 161   register int ax asm("ax");                                            \
 162                                                                         \
 163   ax = a;                                                               \
 164   asm ("cltd\n\tidivl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b));  \
 165   return dx;                                                            \
 166 }
 167
 168 #define perform_fix_truncdfsi2(a)                                               \
 169 {                                                                       \
 170   auto unsigned short ostatus;                                          \
 171   auto unsigned short nstatus;                                          \
 172   auto int ret;                                                         \
 173                                                                         \
 174   &ostatus;                     /* guarantee these land in memory */    \
 175   &nstatus;                                                             \
 176   &ret;                                                                 \
 177                                                                         \
 178   asm volatile ("fnstcw %0" : "=m" (ostatus));                          \
 179   nstatus = ostatus | 0x0c00;                                           \
 180   asm volatile ("fldcw %0" : /* no outputs */ : "m" (nstatus));         \
 181   asm volatile ("fldl %0" : /* no outputs */ : "m" (a));                \
 182   asm volatile ("fistpl %0" : "=m" (ret));                              \
 183   asm volatile ("fldcw %0" : /* no outputs */ : "m" (nstatus));         \
 184                                                                         \
 185   return ret;                                                           \
 186 }