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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #include <lynx.h>
  22
  23 /* Definitions we want to override with those from rs6000.h: */
  24 #undef LIB_SPEC
  25 #undef PTRDIFF_TYPE
  26 #undef WCHAR_TYPE
  27 #undef WCHAR_TYPE_SIZE
  28 #undef ASM_FILE_START
  29 #undef EXTRA_SECTIONS
  30 #undef READONLY_DATA_SECTION
  31 #undef EXTRA_SECTION_FUNCTIONS
  32 #undef SELECT_RTX_SECTION
  33 #undef SELECT_SECTION
  34 #undef ASM_OUTPUT_LABELREF
  35 #undef ASM_OUTPUT_INTERNAL_LABEL
  36 #undef ASM_GENERATE_INTERNAL_LABEL
  37 #undef ASM_OUTPUT_COMMON
  38 #undef ASM_OUTPUT_LOCAL
  39 #undef ASM_OUTPUT_CONSTRUCTOR
  40 #undef ASM_OUTPUT_DESTRUCTOR
  41 #undef CTORS_SECTION_FUNCTION
  42 #undef DTORS_SECTION_FUNCTION
  43
  44 #undef SDB_DEBUGGING_INFO
  45 #undef DBX_DEBUGGING_INFO
  46 #undef PREFERRED_DEBUGGING_TYPE
  47
  48 #undef FUNCTION_PROFILER
  49
  50 #include <rs6000/rs6000.h>
  51
  52 /* LynxOS has signed chars, regardless of what most R/S 6000 systems do */
  53 #undef DEFAULT_SIGNED_CHAR
  54 #define DEFAULT_SIGNED_CHAR 1
  55
  56 #undef CPP_PREDEFINES
  57 #define CPP_PREDEFINES "-Acpu(rs6000) -Amachine(rs6000) -Asystem(lynx) -Asystem(unix) -DLynx -D_IBMR2 -Dunix -Drs6000 -Dlynx -DLYNX"
  58
  59 #undef LINK_SPEC
  60 #define LINK_SPEC "-T0x10001000 -H0x1000 -D0x20000000 -btextro -bhalt:4 -bnodelcsect -bnso -bro -bnoglink %{v} %{b*}"
  61
  62 #undef LIB_SPEC
  63 #define LIB_SPEC "%{mthreads:-L/lib/thread/}  \
  64   %{msystem-v:-lc_v -lm.v}  \
  65   %{!msystem-v:%{mposix:-lc_p} -lc -lm}"
  66
  67 #undef STARTFILE_SPEC
  68 #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}}}"
  69
  70 #undef ENDFILE_SPEC
  71
  72 /* This can become more refined as we have more powerpc options. */
  73 #undef ASM_SPEC
  74 #define ASM_SPEC "-u %{m601:-m601} %{power*:-m601}"
  75
  76 #undef SUBTARGET_SWITCHES
  77 #define SUBTARGET_SWITCHES \
  78     {"threads",         MASK_THREADS},          \
  79     {"posix",           MASK_POSIX},            \
  80     {"system-v",        MASK_SYSTEM_V},
  81
  82 #undef SUBTARGET_OVERRIDE_OPTIONS
  83 #define SUBTARGET_OVERRIDE_OPTIONS \
  84 do {                                                            \
  85   if (TARGET_SYSTEM_V && profile_flag)                          \
  86     warning ("-msystem-v and -p are incompatible");             \
  87   if (TARGET_SYSTEM_V && TARGET_THREADS)                        \
  88     warning ("-msystem-v and -mthreads are incompatible");      \
  89 } while (0)
  90
  91 /* For collect2 */
  92 #define OBJECT_FORMAT_NONE
  93 #undef OBJECT_FORMAT_COFF
  94 #undef OBJECT_FORMAT_ROSE
  95 #undef MD_EXEC_PREFIX
  96 #undef REAL_LD_FILE_NAME
  97 #undef REAL_NM_FILE_NAME
  98 #undef REAL_STRIP_FILE_NAME
  99
 100 /* LynxOS doesn't have mcount. */
 101 #undef FUNCTION_PROFILER
 102 #define FUNCTION_PROFILER(file, profile_label_no)