Mercurial > hg > CbC > CbC_gcc
annotate gcc/opts.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 22 Mar 2011 17:18:12 +0900 |
parents | b7f97abdc517 |
children | 04ced10e8804 |
rev | line source |
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0 | 1 /* Command line option handling. |
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2 Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 |
0 | 3 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 it under | |
8 the terms of the GNU General Public License as published by the Free | |
9 Software Foundation; either version 3, or (at your option) any later | |
10 version. | |
11 | |
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 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 #ifndef GCC_OPTS_H | |
22 #define GCC_OPTS_H | |
23 | |
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24 #include "input.h" |
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25 #include "vec.h" |
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26 |
0 | 27 /* Specifies how a switch's VAR_VALUE relates to its FLAG_VAR. */ |
28 enum cl_var_type { | |
29 /* The switch is enabled when FLAG_VAR is nonzero. */ | |
30 CLVC_BOOLEAN, | |
31 | |
32 /* The switch is enabled when FLAG_VAR == VAR_VALUE. */ | |
33 CLVC_EQUAL, | |
34 | |
35 /* The switch is enabled when VAR_VALUE is not set in FLAG_VAR. */ | |
36 CLVC_BIT_CLEAR, | |
37 | |
38 /* The switch is enabled when VAR_VALUE is set in FLAG_VAR. */ | |
39 CLVC_BIT_SET, | |
40 | |
41 /* The switch takes a string argument and FLAG_VAR points to that | |
42 argument. */ | |
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43 CLVC_STRING, |
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44 |
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45 /* The switch takes an enumerated argument (VAR_ENUM says what |
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46 enumeration) and FLAG_VAR points to that argument. */ |
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47 CLVC_ENUM, |
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48 |
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49 /* The switch should be stored in the VEC pointed to by FLAG_VAR for |
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50 later processing. */ |
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51 CLVC_DEFER |
0 | 52 }; |
53 | |
54 struct cl_option | |
55 { | |
56 const char *opt_text; | |
57 const char *help; | |
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58 const char *missing_argument_error; |
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59 const char *warn_message; |
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60 const char *alias_arg; |
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61 const char *neg_alias_arg; |
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62 unsigned short alias_target; |
0 | 63 unsigned short back_chain; |
64 unsigned char opt_len; | |
65 int neg_index; | |
66 unsigned int flags; | |
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67 unsigned short flag_var_offset; |
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68 unsigned short var_enum; |
0 | 69 enum cl_var_type var_type; |
70 int var_value; | |
71 }; | |
72 | |
73 /* Records that the state of an option consists of SIZE bytes starting | |
74 at DATA. DATA might point to CH in some cases. */ | |
75 struct cl_option_state { | |
76 const void *data; | |
77 size_t size; | |
78 char ch; | |
79 }; | |
80 | |
81 extern const struct cl_option cl_options[]; | |
82 extern const unsigned int cl_options_count; | |
83 extern const char *const lang_names[]; | |
84 extern const unsigned int cl_lang_count; | |
85 | |
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86 #define CL_PARAMS (1 << 11) /* Fake entry. Used to display --param info with --help. */ |
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87 #define CL_WARNING (1 << 12) /* Enables an (optional) warning message. */ |
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88 #define CL_OPTIMIZATION (1 << 13) /* Enables an (optional) optimization. */ |
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89 #define CL_DRIVER (1 << 14) /* Driver option. */ |
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90 #define CL_TARGET (1 << 15) /* Target-specific option. */ |
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91 #define CL_COMMON (1 << 16) /* Language-independent. */ |
0 | 92 |
93 #define CL_MIN_OPTION_CLASS CL_PARAMS | |
94 #define CL_MAX_OPTION_CLASS CL_COMMON | |
95 | |
96 /* From here on the bits describe attributes of the options. | |
97 Before this point the bits have described the class of the option. | |
98 This distinction is important because --help will not list options | |
99 which only have these higher bits set. */ | |
100 | |
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101 /* Options marked with CL_SEPARATE take a number of separate arguments |
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102 (1 to 4) that is one more than the number in this bit-field. */ |
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103 #define CL_SEPARATE_NARGS_SHIFT 17 |
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104 #define CL_SEPARATE_NARGS_MASK (3 << CL_SEPARATE_NARGS_SHIFT) |
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105 |
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106 #define CL_SEPARATE_ALIAS (1 << 19) /* Option is an alias when used with separate argument. */ |
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107 #define CL_NO_DRIVER_ARG (1 << 20) /* Option takes no argument in the driver. */ |
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108 #define CL_REJECT_DRIVER (1 << 21) /* Reject this option in the driver. */ |
0 | 109 #define CL_SAVE (1 << 22) /* Target-specific option for attribute. */ |
110 #define CL_DISABLED (1 << 23) /* Disabled in this configuration. */ | |
111 #define CL_REPORT (1 << 24) /* Report argument with -fverbose-asm */ | |
112 #define CL_JOINED (1 << 25) /* If takes joined argument. */ | |
113 #define CL_SEPARATE (1 << 26) /* If takes a separate argument. */ | |
114 #define CL_REJECT_NEGATIVE (1 << 27) /* Reject no- form. */ | |
115 #define CL_MISSING_OK (1 << 28) /* Missing argument OK (joined). */ | |
116 #define CL_UINTEGER (1 << 29) /* Argument is an integer >=0. */ | |
117 #define CL_UNDOCUMENTED (1 << 30) /* Do not output with --help. */ | |
118 | |
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119 /* Flags for an enumerated option argument. */ |
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120 #define CL_ENUM_CANONICAL (1 << 0) /* Canonical for this value. */ |
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121 #define CL_ENUM_DRIVER_ONLY (1 << 1) /* Only accepted in the driver. */ |
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122 |
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123 /* Structure describing an enumerated option argument. */ |
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124 |
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125 struct cl_enum_arg |
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126 { |
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127 /* The argument text, or NULL at the end of the array. */ |
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128 const char *arg; |
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129 |
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130 /* The corresponding integer value. */ |
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131 int value; |
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132 |
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133 /* Flags associated with this argument. */ |
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134 unsigned int flags; |
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135 }; |
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136 |
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137 /* Structure describing an enumerated set of option arguments. */ |
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138 |
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139 struct cl_enum |
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140 { |
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141 /* Help text, or NULL if the values should not be listed in --help |
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142 output. */ |
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143 const char *help; |
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144 |
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145 /* Error message for unknown arguments, or NULL to use a generic |
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146 error. */ |
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147 const char *unknown_error; |
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148 |
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149 /* Array of possible values. */ |
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150 const struct cl_enum_arg *values; |
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151 |
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152 /* The size of the type used to store a value. */ |
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153 size_t var_size; |
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154 |
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155 /* Function to set a variable of this type. */ |
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156 void (*set) (void *var, int value); |
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157 |
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158 /* Function to get the value of a variable of this type. */ |
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159 int (*get) (const void *var); |
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160 }; |
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161 |
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162 extern const struct cl_enum cl_enums[]; |
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163 extern const unsigned int cl_enums_count; |
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164 |
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165 /* Possible ways in which a command-line option may be erroneous. |
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166 These do not include not being known at all; an option index of |
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167 OPT_SPECIAL_unknown is used for that. */ |
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168 |
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169 #define CL_ERR_DISABLED (1 << 0) /* Disabled in this configuration. */ |
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170 #define CL_ERR_MISSING_ARG (1 << 1) /* Argument required but missing. */ |
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171 #define CL_ERR_WRONG_LANG (1 << 2) /* Option for wrong language. */ |
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172 #define CL_ERR_UINT_ARG (1 << 3) /* Bad unsigned integer argument. */ |
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173 #define CL_ERR_ENUM_ARG (1 << 4) /* Bad enumerated argument. */ |
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174 #define CL_ERR_NEGATIVE (1 << 5) /* Negative form of option |
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175 not permitted (together |
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176 with OPT_SPECIAL_unknown). */ |
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177 |
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178 /* Structure describing the result of decoding an option. */ |
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179 |
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180 struct cl_decoded_option |
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181 { |
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182 /* The index of this option, or an OPT_SPECIAL_* value for |
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183 non-options and unknown options. */ |
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184 size_t opt_index; |
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185 |
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186 /* Any warning to give for use of this option, or NULL if none. */ |
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187 const char *warn_message; |
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188 |
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189 /* The string argument, or NULL if none. For OPT_SPECIAL_* cases, |
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190 the option or non-option command-line argument. */ |
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191 const char *arg; |
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192 |
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193 /* The original text of option plus arguments, with separate argv |
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194 elements concatenated into one string with spaces separating |
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195 them. This is for such uses as diagnostics and |
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196 -frecord-gcc-switches. */ |
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197 const char *orig_option_with_args_text; |
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198 |
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199 /* The canonical form of the option and its argument, for when it is |
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200 necessary to reconstruct argv elements (in particular, for |
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201 processing specs and passing options to subprocesses from the |
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202 driver). */ |
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203 const char *canonical_option[4]; |
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204 |
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205 /* The number of elements in the canonical form of the option and |
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206 arguments; always at least 1. */ |
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207 size_t canonical_option_num_elements; |
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208 |
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209 /* For a boolean option, 1 for the true case and 0 for the "no-" |
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210 case. For an unsigned integer option, the value of the |
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211 argument. 1 in all other cases. */ |
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212 int value; |
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213 |
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214 /* Any flags describing errors detected in this option. */ |
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215 int errors; |
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216 }; |
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217 |
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218 /* Structure describing an option deferred for handling after the main |
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219 option handlers. */ |
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220 |
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221 typedef struct |
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222 { |
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223 /* Elements from struct cl_decoded_option used for deferred |
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224 options. */ |
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225 size_t opt_index; |
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226 const char *arg; |
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227 int value; |
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228 } cl_deferred_option; |
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229 DEF_VEC_O(cl_deferred_option); |
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230 DEF_VEC_ALLOC_O(cl_deferred_option,heap); |
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231 |
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232 /* Structure describing a single option-handling callback. */ |
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233 |
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234 struct cl_option_handler_func |
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235 { |
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236 /* The function called to handle the option. */ |
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237 bool (*handler) (struct gcc_options *opts, |
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238 struct gcc_options *opts_set, |
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239 const struct cl_decoded_option *decoded, |
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240 unsigned int lang_mask, int kind, location_t loc, |
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241 const struct cl_option_handlers *handlers, |
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242 diagnostic_context *dc); |
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243 |
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244 /* The mask that must have some bit in common with the flags for the |
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245 option for this particular handler to be used. */ |
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246 unsigned int mask; |
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247 }; |
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248 |
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249 /* Structure describing the callbacks used in handling options. */ |
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250 |
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251 struct cl_option_handlers |
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252 { |
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253 /* Callback for an unknown option to determine whether to give an |
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254 error for it, and possibly store information to diagnose the |
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255 option at a later point. Return true if an error should be |
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256 given, false otherwise. */ |
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257 bool (*unknown_option_callback) (const struct cl_decoded_option *decoded); |
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258 |
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259 /* Callback to handle, and possibly diagnose, an option for another |
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260 language. */ |
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261 void (*wrong_lang_callback) (const struct cl_decoded_option *decoded, |
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262 unsigned int lang_mask); |
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263 |
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264 /* Callback to call after the successful handling of any option. */ |
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265 void (*post_handling_callback) (const struct cl_decoded_option *decoded, |
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266 unsigned int mask); |
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267 |
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268 /* The number of individual handlers. */ |
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269 size_t num_handlers; |
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270 |
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271 /* The handlers themselves. */ |
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272 struct cl_option_handler_func handlers[3]; |
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273 }; |
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274 |
0 | 275 /* Input file names. */ |
276 | |
277 extern const char **in_fnames; | |
278 | |
279 /* The count of input filenames. */ | |
280 | |
281 extern unsigned num_in_fnames; | |
282 | |
283 size_t find_opt (const char *input, int lang_mask); | |
67
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284 extern int integral_argument (const char *arg); |
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285 extern bool enum_value_to_arg (const struct cl_enum_arg *enum_args, |
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286 const char **argp, int value, |
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287 unsigned int lang_mask); |
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288 extern void decode_cmdline_options_to_array (unsigned int argc, |
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289 const char **argv, |
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290 unsigned int lang_mask, |
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291 struct cl_decoded_option **decoded_options, |
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292 unsigned int *decoded_options_count); |
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293 extern void init_options_once (void); |
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294 extern void init_options_struct (struct gcc_options *opts, |
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295 struct gcc_options *opts_set); |
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296 extern void decode_cmdline_options_to_array_default_mask (unsigned int argc, |
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297 const char **argv, |
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298 struct cl_decoded_option **decoded_options, |
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299 unsigned int *decoded_options_count); |
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300 extern void set_default_handlers (struct cl_option_handlers *handlers); |
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301 extern void decode_options (struct gcc_options *opts, |
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302 struct gcc_options *opts_set, |
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303 struct cl_decoded_option *decoded_options, |
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304 unsigned int decoded_options_count, |
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305 location_t loc, |
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306 diagnostic_context *dc); |
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307 extern int option_enabled (int opt_idx, void *opts); |
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308 extern bool get_option_state (struct gcc_options *, int, |
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309 struct cl_option_state *); |
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310 extern void set_option (struct gcc_options *opts, |
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311 struct gcc_options *opts_set, |
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312 int opt_index, int value, const char *arg, int kind, |
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313 location_t loc, diagnostic_context *dc); |
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314 extern void *option_flag_var (int opt_index, struct gcc_options *opts); |
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315 bool handle_generated_option (struct gcc_options *opts, |
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316 struct gcc_options *opts_set, |
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317 size_t opt_index, const char *arg, int value, |
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318 unsigned int lang_mask, int kind, location_t loc, |
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319 const struct cl_option_handlers *handlers, |
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320 diagnostic_context *dc); |
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321 void generate_option (size_t opt_index, const char *arg, int value, |
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322 unsigned int lang_mask, |
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323 struct cl_decoded_option *decoded); |
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324 void generate_option_input_file (const char *file, |
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325 struct cl_decoded_option *decoded); |
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326 extern void read_cmdline_option (struct gcc_options *opts, |
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327 struct gcc_options *opts_set, |
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328 struct cl_decoded_option *decoded, |
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329 location_t loc, |
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330 unsigned int lang_mask, |
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331 const struct cl_option_handlers *handlers, |
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332 diagnostic_context *dc); |
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333 extern void control_warning_option (unsigned int opt_index, int kind, |
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334 bool imply, location_t loc, |
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335 unsigned int lang_mask, |
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336 const struct cl_option_handlers *handlers, |
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337 struct gcc_options *opts, |
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338 struct gcc_options *opts_set, |
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339 diagnostic_context *dc); |
0 | 340 extern void print_ignored_options (void); |
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341 extern void handle_common_deferred_options (void); |
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342 extern bool common_handle_option (struct gcc_options *opts, |
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343 struct gcc_options *opts_set, |
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344 const struct cl_decoded_option *decoded, |
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345 unsigned int lang_mask, int kind, |
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346 location_t loc, |
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347 const struct cl_option_handlers *handlers, |
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348 diagnostic_context *dc); |
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349 extern bool target_handle_option (struct gcc_options *opts, |
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350 struct gcc_options *opts_set, |
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351 const struct cl_decoded_option *decoded, |
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352 unsigned int lang_mask, int kind, |
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353 location_t loc, |
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354 const struct cl_option_handlers *handlers, |
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355 diagnostic_context *dc); |
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356 extern void finish_options (struct gcc_options *opts, |
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357 struct gcc_options *opts_set, |
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358 location_t loc); |
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359 extern void default_options_optimization (struct gcc_options *opts, |
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360 struct gcc_options *opts_set, |
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361 struct cl_decoded_option *decoded_options, |
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362 unsigned int decoded_options_count, |
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363 location_t loc, |
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364 unsigned int lang_mask, |
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365 const struct cl_option_handlers *handlers, |
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366 diagnostic_context *dc); |
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367 extern void set_struct_debug_option (struct gcc_options *opts, |
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368 location_t loc, |
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369 const char *value); |
0 | 370 #endif |