gcc/config/rs6000/lynx.h

   1 /* Definitions for Rs6000 running LynxOS.
   2    Copyright (C) 1995, 1996, 2000, 2002, 2003 Free Software Foundation, Inc.
   3    Contributed by David Henkel-Wallace, Cygnus Support (gumby@cygnus.com)
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 2, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    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 the
  19    Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  20    MA 02111-1307, USA.  */
  21
  22 /* Print subsidiary information on the compiler version in use.  */
  23 #define TARGET_VERSION fprintf (stderr, " (LynxOS-RS/6000)");
  24
  25 /* LynxOS has signed chars, regardless of what most R/S 6000 systems do */
  26 #undef  DEFAULT_SIGNED_CHAR
  27 #define DEFAULT_SIGNED_CHAR 1
  28
  29 #undef  TARGET_OS_CPP_BUILTINS
  30 #define TARGET_OS_CPP_BUILTINS()         \
  31   do                                     \
  32     {                                    \
  33       builtin_assert ("cpu=rs6000");     \
  34       builtin_assert ("machine=rs6000"); \
  35       builtin_assert ("system=lynx");    \
  36       builtin_assert ("system=unix");    \
  37       builtin_define_std ("Lynx");       \
  38       builtin_define ("_IBMR2");         \
  39       builtin_define_std ("unix");       \
  40       builtin_define_std ("rs6000");     \
  41       builtin_define_std ("lynx");       \
  42       builtin_define_std ("LYNX");       \
  43     }                                    \
  44   while (0)
  45
  46 #undef  LINK_SPEC
  47 #define LINK_SPEC "-T0x10001000 -H0x1000 -D0x20000000 -btextro -bhalt:4 -bnodelcsect -bnso -bro -bnoglink %{v} %{b*}"
  48
  49 #undef  LIB_SPEC
  50 #define LIB_SPEC "%{mthreads:-L/lib/thread/}  \
  51   %{msystem-v:-lc_v -lm.v}  \
  52   %{!msystem-v:%{mposix:-lc_p} -lc -lm}"
  53
  54 #undef  STARTFILE_SPEC
  55 #define STARTFILE_SPEC "%{p:%{mthreads:thread/pinit.o%s}%{!mthreads:pinit.o%s}}%{!p:%{msystem-v:vinit.o%s -e_start}%{!msystem-v:%{mthreads:thread/init.o%s}%{!mthreads:init.o%s}}}"
  56
  57 #undef ENDFILE_SPEC
  58
  59 /* This can become more refined as we have more powerpc options.  */
  60 #undef  ASM_SPEC
  61 #define ASM_SPEC "-u %(asm_cpu)"
  62
  63 #undef  SUBTARGET_SWITCHES
  64 #define SUBTARGET_SWITCHES \
  65     {"threads",         MASK_THREADS},          \
  66     {"posix",           MASK_POSIX},            \
  67     {"system-v",        MASK_SYSTEM_V},
  68
  69 #undef  SUBTARGET_OVERRIDE_OPTIONS
  70 #define SUBTARGET_OVERRIDE_OPTIONS \
  71 do {                                                            \
  72   if (TARGET_SYSTEM_V && profile_flag)                          \
  73     warning ("-msystem-v and -p are incompatible");             \
  74   if (TARGET_SYSTEM_V && TARGET_THREADS)                        \
  75     warning ("-msystem-v and -mthreads are incompatible");      \
  76 } while (0)
  77
  78 /* For collect2 */
  79 #define OBJECT_FORMAT_NONE
  80 #undef OBJECT_FORMAT_COFF
  81 #undef MD_EXEC_PREFIX
  82 #undef REAL_LD_FILE_NAME
  83 #undef REAL_STRIP_FILE_NAME
  84
  85 /* LynxOS doesn't have mcount.  */
  86 #undef  FUNCTION_PROFILER
  87 #define FUNCTION_PROFILER(file, profile_label_no)