gcc/config/rs6000/lynx.h

   1 /* Definitions for Rs6000 running LynxOS.
   2    Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
   3    Contributed by David Henkel-Wallace, Cygnus Support (gumby@cygnus.com)
   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 #include <lynx.h>
  23
  24 /* Definitions we want to override with those from rs6000.h: */
  25 #undef LIB_SPEC
  26 #undef PTRDIFF_TYPE
  27 #undef WCHAR_TYPE
  28 #undef WCHAR_TYPE_SIZE
  29 #undef ASM_FILE_START
  30 #undef EXTRA_SECTIONS
  31 #undef READONLY_DATA_SECTION
  32 #undef EXTRA_SECTION_FUNCTIONS
  33 #undef SELECT_RTX_SECTION
  34 #undef SELECT_SECTION
  35 #undef USER_LABEL_PREFIX
  36 #undef ASM_OUTPUT_LABELREF
  37 #undef ASM_OUTPUT_INTERNAL_LABEL
  38 #undef ASM_GENERATE_INTERNAL_LABEL
  39 #undef ASM_OUTPUT_COMMON
  40 #undef ASM_OUTPUT_LOCAL
  41
  42 #undef SDB_DEBUGGING_INFO
  43 #undef DBX_DEBUGGING_INFO
  44 #undef PREFERRED_DEBUGGING_TYPE
  45
  46 #undef FUNCTION_PROFILER
  47
  48 #include <rs6000/rs6000.h>
  49
  50 /* LynxOS has signed chars, regardless of what most R/S 6000 systems do */
  51 #undef DEFAULT_SIGNED_CHAR
  52 #define DEFAULT_SIGNED_CHAR 1
  53
  54 #undef CPP_PREDEFINES
  55 #define CPP_PREDEFINES "-Acpu=rs6000 -Amachine=rs6000 -Asystem=lynx -Asystem=unix -DLynx -D_IBMR2 -Dunix -Drs6000 -Dlynx -DLYNX"
  56
  57 #undef LINK_SPEC
  58 #define LINK_SPEC "-T0x10001000 -H0x1000 -D0x20000000 -btextro -bhalt:4 -bnodelcsect -bnso -bro -bnoglink %{v} %{b*}"
  59
  60 #undef LIB_SPEC
  61 #define LIB_SPEC "%{mthreads:-L/lib/thread/}  \
  62   %{msystem-v:-lc_v -lm.v}  \
  63   %{!msystem-v:%{mposix:-lc_p} -lc -lm}"
  64
  65 #undef STARTFILE_SPEC
  66 #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}}}"
  67
  68 #undef ENDFILE_SPEC
  69
  70 /* This can become more refined as we have more powerpc options. */
  71 #undef ASM_SPEC
  72 #define ASM_SPEC "-u %(asm_cpu)"
  73
  74 #undef SUBTARGET_SWITCHES
  75 #define SUBTARGET_SWITCHES \
  76     {"threads",         MASK_THREADS},          \
  77     {"posix",           MASK_POSIX},            \
  78     {"system-v",        MASK_SYSTEM_V},
  79
  80 #undef SUBTARGET_OVERRIDE_OPTIONS
  81 #define SUBTARGET_OVERRIDE_OPTIONS \
  82 do {                                                            \
  83   if (TARGET_SYSTEM_V && profile_flag)                          \
  84     warning ("-msystem-v and -p are incompatible");             \
  85   if (TARGET_SYSTEM_V && TARGET_THREADS)                        \
  86     warning ("-msystem-v and -mthreads are incompatible");      \
  87 } while (0)
  88
  89 /* For collect2 */
  90 #define OBJECT_FORMAT_NONE
  91 #undef OBJECT_FORMAT_COFF
  92 #undef OBJECT_FORMAT_ROSE
  93 #undef MD_EXEC_PREFIX
  94 #undef REAL_LD_FILE_NAME
  95 #undef REAL_STRIP_FILE_NAME
  96
  97 /* LynxOS doesn't have mcount. */
  98 #undef FUNCTION_PROFILER
  99 #define FUNCTION_PROFILER(file, profile_label_no)