1 /* Target independent definitions for LynxOS. 2 Copyright (C) 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2003, 2004, 3 2007 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC 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 3, or (at your option) 10 any later version. 11 12 GCC 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 GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 /* In this file we set up defaults that can be chosen by 22 <target>/lynx.h files. A target-specific lynx.h file can decide 23 either to define and override these definitions or to use them by 24 ensuring they are undefined at this point. If we were to #undef 25 them here we might accidentally disable some target-specific 26 defines. */ 27 28 #ifndef EXTRA_OS_LYNX_TARGET_SPECS 29 # define EXTRA_OS_LYNX_TARGET_SPECS 30 #endif 31 32 #ifndef EXTRA_OS_LYNX_SPECS 33 # define EXTRA_OS_LYNX_SPECS \ 34 { "cpp_os_lynx", CPP_OS_LYNX_SPEC }, \ 35 { "lib_os_lynx", LIB_OS_LYNX_SPEC }, \ 36 { "link_os_lynx", LINK_OS_LYNX_SPEC }, \ 37 { "startfile_os_lynx", STARTFILE_OS_LYNX_SPEC }, \ 38 { "endfile_os_lynx", ENDFILE_OS_LYNX_SPEC }, \ 39 EXTRA_OS_LYNX_TARGET_SPECS 40 #endif 41 42 #ifndef SUBTARGET_EXTRA_SPECS 43 # define SUBTARGET_EXTRA_SPECS EXTRA_OS_LYNX_SPECS 44 #endif 45 46 #ifndef CPP_SPEC 47 # define CPP_SPEC "%(cpp_cpu) %(cpp_os_lynx)" 48 #endif 49 50 #ifndef LIB_SPEC 51 # define LIB_SPEC "%(lib_os_lynx)" 52 #endif 53 54 #ifndef LINK_SPEC 55 # define LINK_SPEC "%(link_os_lynx)" 56 #endif 57 58 #ifndef STARTFILE_SPEC 59 # define STARTFILE_SPEC "%(startfile_os_lynx)" 60 #endif 61 62 #ifndef ENDFILE_SPEC 63 # define ENDFILE_SPEC "%(endfile_os_lynx)" 64 #endif 65 66 #ifndef CPP_OS_LYNX_SPEC 67 # define CPP_OS_LYNX_SPEC \ 68 "%{mthreads: \ 69 %{mlegacy-threads: \ 70 %ecannot use mthreads and mlegacy-threads together}} \ 71 %{mthreads: -D_MULTITHREADED} \ 72 %{mlegacy-threads: -D_THREADS_POSIX4ad4} \ 73 -Asystem=lynx -Asystem=unix -D__Lynx__ -D__unix__" 74 #endif 75 76 #ifndef LIB_OS_LYNX_SPEC 77 # define LIB_OS_LYNX_SPEC \ 78 "%{mlegacy-threads:-lposix-pre1c} -lm -lc" 79 #endif 80 81 /* We link static executables for LynxOS by default unless -mshared is 82 used when linking an executable. Along the same line, we link to 83 shared libraries when linking a shared object by default unless 84 -static is used. 85 86 We have to pass in our -L options here otherwise the translated 87 startfile directories (%D) will take priority over this. 88 Furthermore since we have to pass in -L options here we have to 89 make sure that -L options provided by the user take priority over 90 everything we specify. */ 91 92 #ifndef LINK_OS_LYNX_SPEC 93 # define LINK_OS_LYNX_SPEC \ 94 "%{shared} %{static} \ 95 %{mshared: %{static: %ecannot use mshared and static together}} \ 96 %{!mshared: %{!shared: %{!static: -static}}} \ 97 %{L*} \ 98 %{mthreads: \ 99 %{mshared: -L/lib/thread/shlib -rpath /lib/thread/shlib} \ 100 %{shared: \ 101 %{!static: -L/lib/thread/shlib -rpath /lib/thread/shlib} \ 102 %{!mshared: -L/lib/thread}} \ 103 %{shared: %{static: -L/lib/thread}}} \ 104 %{!mthreads: \ 105 %{mshared: -L/lib/shlib -rpath /lib/shlib} \ 106 %{shared: -L/lib/shlib -rpath /lib/shlib}} \ 107 %{mlegacy-threads:-lposix-pre1c} -lm -lc" 108 #endif 109 110 #ifndef STARTFILE_OS_LYNX_SPEC 111 # define STARTFILE_OS_LYNX_SPEC \ 112 "%{!shared: \ 113 %{!mthreads: \ 114 %{p:gcrt1.o%s} %{pg:gcrt1.o%s} \ 115 %{!p:%{!pg:crt1.o%s}}} \ 116 %{mthreads: \ 117 %{p:thread/gcrt1.o%s} %{pg:thread/gcrt1.o%s} \ 118 %{!p:%{!pg:thread/crt1.o%s }}}}\ 119 %{mthreads: thread/crti.o%s} %{!mthreads: crti.o%s} \ 120 %{!shared: crtbegin.o%s} \ 121 %{shared: crtbeginS.o%s}" 122 #endif 123 124 #ifndef ENDFILE_OS_LYNX_SPEC 125 # define ENDFILE_OS_LYNX_SPEC \ 126 "%{!shared: crtend.o%s} \ 127 %{shared: crtendS.o%s} \ 128 %{mthreads: thread/crtn.o%s} %{!mthreads: crtn.o%s}" 129 #endif 130 131 /* Define the actual types of some ANSI-mandated types. */ 132 133 #ifndef SIZE_TYPE 134 # define SIZE_TYPE "unsigned int" 135 #endif 136 137 #ifndef PTRDIFF_TYPE 138 # define PTRDIFF_TYPE "int" 139 #endif 140 141 #ifndef WCHAR_TYPE 142 # define WCHAR_TYPE "long int" 143 #endif 144 145 #ifndef WCHAR_TYPE_SIZE 146 # define WCHAR_TYPE_SIZE BITS_PER_WORD 147 #endif 148 149 /* Define ASM_OUTPUT_ALIGN to use the .balign directive rather that 150 the .align directive with GAS. */ 151 152 #ifndef ASM_OUTPUT_ALIGN 153 # define ASM_OUTPUT_ALIGN(FILE, LOG) \ 154 do \ 155 { \ 156 if ((LOG) != 0) \ 157 fprintf ((FILE), "\t.balign %d\n", 1 << (LOG)); \ 158 } \ 159 while (0) 160 #endif 161 162 /* Keep the *_DEBUGGING_INFO defines from elfos.h except that stabs is 163 the default on LynxOS. */ 164 165 #ifndef PREFERRED_DEBUGGING_TYPE 166 # define PREFERRED_DEBUGGING_TYPE DBX_DEBUG 167 #endif 168 169 /* We have C++ support in our system headers. */ 170 171 #ifndef NO_IMPLICIT_EXTERN_C 172 # define NO_IMPLICIT_EXTERN_C 173 #endif 174 175 #ifndef TARGET_POSIX_IO 176 # define TARGET_POSIX_IO 177 #endif 178