gcc/config/rs6000/lynx.h

   1 /* Definitions for Rs6000 running LynxOS.
   2    Copyright (C) 1995 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 ASM_OUTPUT_LABELREF
  36 #undef ASM_OUTPUT_INTERNAL_LABEL
  37 #undef ASM_GENERATE_INTERNAL_LABEL
  38 #undef ASM_OUTPUT_COMMON
  39 #undef ASM_OUTPUT_LOCAL
  40 #undef ASM_OUTPUT_CONSTRUCTOR
  41 #undef ASM_OUTPUT_DESTRUCTOR
  42 #undef CTORS_SECTION_FUNCTION
  43 #undef DTORS_SECTION_FUNCTION
  44
  45 #undef SDB_DEBUGGING_INFO
  46 #undef DBX_DEBUGGING_INFO
  47 #undef PREFERRED_DEBUGGING_TYPE
  48
  49 #undef FUNCTION_PROFILER
  50
  51 #include <rs6000/rs6000.h>
  52
  53 /* LynxOS has signed chars, regardless of what most R/S 6000 systems do */
  54 #undef DEFAULT_SIGNED_CHAR
  55 #define DEFAULT_SIGNED_CHAR 1
  56
  57 #undef CPP_PREDEFINES
  58 #define CPP_PREDEFINES "-Acpu(rs6000) -Amachine(rs6000) -Asystem(lynx) -Asystem(unix) -DLynx -D_IBMR2 -Dunix -Drs6000 -Dlynx -DLYNX"
  59
  60 #undef LINK_SPEC
  61 #define LINK_SPEC "-T0x10001000 -H0x1000 -D0x20000000 -btextro -bhalt:4 -bnodelcsect -bnso -bro -bnoglink %{v} %{b*}"
  62
  63 #undef LIB_SPEC
  64 #define LIB_SPEC "%{mthreads:-L/lib/thread/}  \
  65   %{msystem-v:-lc_v -lm.v}  \
  66   %{!msystem-v:%{mposix:-lc_p} -lc -lm}"
  67
  68 #undef STARTFILE_SPEC
  69 #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}}}"
  70
  71 #undef ENDFILE_SPEC
  72
  73 /* This can become more refined as we have more powerpc options. */
  74 #undef ASM_SPEC
  75 #define ASM_SPEC "\
  76 -u \
  77 %{!mcpu*: \
  78   %{mpower2: -mpwrx} \
  79   %{mpowerpc*: %{!mpower: -mppc}} \
  80   %{mno-powerpc: %{!mpower: %{!mpower2: -mcom}}} \
  81   %{mno-powerpc: %{mpower: %{!mpower2: -mpwr}}} \
  82   %{!mno-powerpc: %{mpower: -m601}} \
  83   %{!mno-powerpc: %{!mpower: -mppc}}} \
  84 %{mcpu=common: -mcom} \
  85 %{mcpu=power: -mpwr} \
  86 %{mcpu=power2: -mpwrx} \
  87 %{mcpu=powerpc: -mppc} \
  88 %{mcpu=rios: -mpwr} \
  89 %{mcpu=rios1: -mpwr} \
  90 %{mcpu=rios2: -mpwrx} \
  91 %{mcpu=rsc: -mpwr} \
  92 %{mcpu=rsc1: -mpwr} \
  93 %{mcpu=403: -mppc} \
  94 %{mcpu=601: -m601} \
  95 %{mcpu=602: -mppc} \
  96 %{mcpu=603: -mppc} \
  97 %{mcpu=603e: -mppc} \
  98 %{mcpu=604: -mppc} \
  99 %{mcpu=620: -mppc}"
 100
 101 #undef SUBTARGET_SWITCHES
 102 #define SUBTARGET_SWITCHES \
 103     {"threads",         MASK_THREADS},          \
 104     {"posix",           MASK_POSIX},            \
 105     {"system-v",        MASK_SYSTEM_V},
 106
 107 #undef SUBTARGET_OVERRIDE_OPTIONS
 108 #define SUBTARGET_OVERRIDE_OPTIONS \
 109 do {                                                            \
 110   if (TARGET_SYSTEM_V && profile_flag)                          \
 111     warning ("-msystem-v and -p are incompatible");             \
 112   if (TARGET_SYSTEM_V && TARGET_THREADS)                        \
 113     warning ("-msystem-v and -mthreads are incompatible");      \
 114 } while (0)
 115
 116 /* For collect2 */
 117 #define OBJECT_FORMAT_NONE
 118 #undef OBJECT_FORMAT_COFF
 119 #undef OBJECT_FORMAT_ROSE
 120 #undef MD_EXEC_PREFIX
 121 #undef REAL_LD_FILE_NAME
 122 #undef REAL_NM_FILE_NAME
 123 #undef REAL_STRIP_FILE_NAME
 124
 125 /* LynxOS doesn't have mcount. */
 126 #undef FUNCTION_PROFILER
 127 #define FUNCTION_PROFILER(file, profile_label_no)