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1 /* Target independent definitions for LynxOS.
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111
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2 Copyright (C) 1993-2017 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 /* In this file we set up defaults that can be chosen by
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21 <target>/lynx.h files. A target-specific lynx.h file can decide
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22 either to define and override these definitions or to use them by
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23 ensuring they are undefined at this point. If we were to #undef
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24 them here we might accidentally disable some target-specific
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25 defines. */
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26
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27 #ifndef EXTRA_OS_LYNX_TARGET_SPECS
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28 # define EXTRA_OS_LYNX_TARGET_SPECS
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29 #endif
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30
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31 #ifndef EXTRA_OS_LYNX_SPECS
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32 # define EXTRA_OS_LYNX_SPECS \
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33 { "cpp_os_lynx", CPP_OS_LYNX_SPEC }, \
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34 { "lib_os_lynx", LIB_OS_LYNX_SPEC }, \
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35 { "link_os_lynx", LINK_OS_LYNX_SPEC }, \
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36 { "startfile_os_lynx", STARTFILE_OS_LYNX_SPEC }, \
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37 { "endfile_os_lynx", ENDFILE_OS_LYNX_SPEC }, \
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38 EXTRA_OS_LYNX_TARGET_SPECS
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39 #endif
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40
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41 #ifndef SUBTARGET_EXTRA_SPECS
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42 # define SUBTARGET_EXTRA_SPECS EXTRA_OS_LYNX_SPECS
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43 #endif
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44
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45 #ifndef CPP_SPEC
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46 # define CPP_SPEC "%(cpp_cpu) %(cpp_os_lynx)"
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47 #endif
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48
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49 #ifndef LIB_SPEC
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50 # define LIB_SPEC "%(lib_os_lynx)"
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51 #endif
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52
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53 #ifndef LINK_SPEC
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54 # define LINK_SPEC "%(link_os_lynx)"
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55 #endif
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56
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57 #ifndef STARTFILE_SPEC
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58 # define STARTFILE_SPEC "%(startfile_os_lynx)"
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59 #endif
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60
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61 #ifndef ENDFILE_SPEC
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62 # define ENDFILE_SPEC "%(endfile_os_lynx)"
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63 #endif
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64
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65 #ifndef CPP_OS_LYNX_SPEC
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66 # define CPP_OS_LYNX_SPEC \
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67 "%{mthreads: \
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68 %{mlegacy-threads: \
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69 %ecannot use mthreads and mlegacy-threads together}} \
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70 %{mthreads: -D_MULTITHREADED} \
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71 %{mlegacy-threads: -D_THREADS_POSIX4ad4} \
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72 -Asystem=lynx -Asystem=unix -D__Lynx__ -D__unix__"
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73 #endif
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74
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75 #ifndef LIB_OS_LYNX_SPEC
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76 # define LIB_OS_LYNX_SPEC \
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77 "%{mlegacy-threads:-lposix-pre1c} -lm -lc"
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78 #endif
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79
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80 /* We link static executables for LynxOS by default unless -mshared is
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81 used when linking an executable. Along the same line, we link to
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82 shared libraries when linking a shared object by default unless
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83 -static is used.
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84
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85 We have to pass in our -L options here otherwise the translated
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86 startfile directories (%D) will take priority over this.
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87 Furthermore since we have to pass in -L options here we have to
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88 make sure that -L options provided by the user take priority over
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89 everything we specify. */
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90
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91 #ifndef LINK_OS_LYNX_SPEC
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92 # define LINK_OS_LYNX_SPEC \
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93 "%{shared} %{static} \
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94 %{mshared: %{static: %ecannot use mshared and static together}} \
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95 %{!mshared: %{!shared: %{!static: -static}}} \
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96 %{L*} \
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97 %{mthreads: \
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98 %{mshared: -L/lib/thread/shlib -rpath /lib/thread/shlib} \
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99 %{shared: \
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100 %{!static: -L/lib/thread/shlib -rpath /lib/thread/shlib} \
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101 %{!mshared: -L/lib/thread}} \
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102 %{shared: %{static: -L/lib/thread}}} \
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103 %{!mthreads: \
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104 %{mshared: -L/lib/shlib -rpath /lib/shlib} \
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105 %{shared: -L/lib/shlib -rpath /lib/shlib}} \
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106 %{mlegacy-threads:-lposix-pre1c} -lm -lc"
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107 #endif
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108
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109 #ifndef STARTFILE_OS_LYNX_SPEC
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110 # define STARTFILE_OS_LYNX_SPEC \
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111 "%{!shared: \
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112 %{!mthreads: \
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113 %{p:gcrt1.o%s} %{pg:gcrt1.o%s} \
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114 %{!p:%{!pg:crt1.o%s}}} \
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115 %{mthreads: \
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116 %{p:thread/gcrt1.o%s} %{pg:thread/gcrt1.o%s} \
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117 %{!p:%{!pg:thread/crt1.o%s }}}}\
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118 %{mthreads: thread/crti.o%s} %{!mthreads: crti.o%s} \
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119 %{!shared: crtbegin.o%s} \
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120 %{shared: crtbeginS.o%s}"
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121 #endif
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122
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123 #ifndef ENDFILE_OS_LYNX_SPEC
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124 # define ENDFILE_OS_LYNX_SPEC \
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125 "%{!shared: crtend.o%s} \
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126 %{shared: crtendS.o%s} \
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127 %{mthreads: thread/crtn.o%s} %{!mthreads: crtn.o%s}"
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128 #endif
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129
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130 /* Define the actual types of some ANSI-mandated types. */
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131
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132 #ifndef SIZE_TYPE
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133 # define SIZE_TYPE "unsigned int"
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134 #endif
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135
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136 #ifndef PTRDIFF_TYPE
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137 # define PTRDIFF_TYPE "int"
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138 #endif
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139
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140 #ifndef WCHAR_TYPE
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141 # define WCHAR_TYPE "long int"
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142 #endif
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143
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144 #ifndef WCHAR_TYPE_SIZE
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145 # define WCHAR_TYPE_SIZE BITS_PER_WORD
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146 #endif
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147
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148 /* Define ASM_OUTPUT_ALIGN to use the .balign directive rather that
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149 the .align directive with GAS. */
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150
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151 #ifndef ASM_OUTPUT_ALIGN
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152 # define ASM_OUTPUT_ALIGN(FILE, LOG) \
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153 do \
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154 { \
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155 if ((LOG) != 0) \
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156 fprintf ((FILE), "\t.balign %d\n", 1 << (LOG)); \
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157 } \
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158 while (0)
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159 #endif
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160
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161 /* Keep the *_DEBUGGING_INFO defines from elfos.h except that stabs is
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162 the default on LynxOS. */
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163
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164 #ifndef PREFERRED_DEBUGGING_TYPE
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165 # define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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166 #endif
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167
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168 /* We have C++ support in our system headers. */
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169
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170 #ifndef NO_IMPLICIT_EXTERN_C
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171 # define NO_IMPLICIT_EXTERN_C
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172 #endif
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173
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174 #ifndef TARGET_POSIX_IO
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175 # define TARGET_POSIX_IO
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176 #endif
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