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bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
e5756efb | 3 | // Copyright 2006, 2007, 2008 Free Software Foundation, Inc. |
6cb15b7f ILT |
4 | // Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
bae7f79e | 23 | // General_options (from Command_line::options()) |
ee1fe73e | 24 | // All the options (a.k.a. command-line flags) |
bae7f79e ILT |
25 | // Input_argument (from Command_line::inputs()) |
26 | // The list of input files, including -l options. | |
ee1fe73e ILT |
27 | // Command_line |
28 | // Everything we get from the command line -- the General_options | |
29 | // plus the Input_arguments. | |
30 | // | |
31 | // There are also some smaller classes, such as | |
32 | // Position_dependent_options which hold a subset of General_options | |
33 | // that change as options are parsed (as opposed to the usual behavior | |
34 | // of the last instance of that option specified on the commandline wins). | |
bae7f79e ILT |
35 | |
36 | #ifndef GOLD_OPTIONS_H | |
37 | #define GOLD_OPTIONS_H | |
38 | ||
ca3a67a5 | 39 | #include <cstdlib> |
bae7f79e | 40 | #include <list> |
61ba1cf9 | 41 | #include <string> |
92e059d8 | 42 | #include <vector> |
bae7f79e | 43 | |
0daa6f62 | 44 | #include "elfcpp.h" |
3c2fafa5 ILT |
45 | #include "script.h" |
46 | ||
bae7f79e ILT |
47 | namespace gold |
48 | { | |
49 | ||
50 | class Command_line; | |
ee1fe73e ILT |
51 | class General_options; |
52 | class Search_directory; | |
ead1e424 | 53 | class Input_file_group; |
3c2fafa5 | 54 | class Position_dependent_options; |
0daa6f62 | 55 | class Target; |
bae7f79e | 56 | |
ee1fe73e ILT |
57 | // The nested namespace is to contain all the global variables and |
58 | // structs that need to be defined in the .h file, but do not need to | |
59 | // be used outside this class. | |
c7912668 ILT |
60 | namespace options |
61 | { | |
ee1fe73e ILT |
62 | typedef std::vector<Search_directory> Dir_list; |
63 | ||
64 | // These routines convert from a string option to various types. | |
65 | // Each gives a fatal error if it cannot parse the argument. | |
66 | ||
67 | extern void | |
68 | parse_bool(const char* option_name, const char* arg, bool* retval); | |
69 | ||
70 | extern void | |
71 | parse_uint(const char* option_name, const char* arg, int* retval); | |
72 | ||
73 | extern void | |
c18476e7 ILT |
74 | parse_uint64(const char* option_name, const char* arg, uint64_t* retval); |
75 | ||
76 | extern void | |
77 | parse_double(const char* option_name, const char* arg, double* retval); | |
ee1fe73e ILT |
78 | |
79 | extern void | |
80 | parse_string(const char* option_name, const char* arg, const char** retval); | |
81 | ||
82 | extern void | |
83 | parse_dirlist(const char* option_name, const char* arg, Dir_list* retval); | |
84 | ||
85 | extern void | |
86 | parse_choices(const char* option_name, const char* arg, const char** retval, | |
87 | const char* choices[], int num_choices); | |
88 | ||
89 | struct Struct_var; | |
90 | ||
91 | // Most options have both a shortname (one letter) and a longname. | |
92 | // This enum controls how many dashes are expected for longname access | |
93 | // -- shortnames always use one dash. Most longnames will accept | |
94 | // either one dash or two; the only difference between ONE_DASH and | |
95 | // TWO_DASHES is how we print the option in --help. However, some | |
96 | // longnames require two dashes, and some require only one. The | |
97 | // special value DASH_Z means that the option is preceded by "-z". | |
98 | enum Dashes | |
99 | { | |
100 | ONE_DASH, TWO_DASHES, EXACTLY_ONE_DASH, EXACTLY_TWO_DASHES, DASH_Z | |
101 | }; | |
102 | ||
103 | // LONGNAME is the long-name of the option with dashes converted to | |
104 | // underscores, or else the short-name if the option has no long-name. | |
105 | // It is never the empty string. | |
106 | // DASHES is an instance of the Dashes enum: ONE_DASH, TWO_DASHES, etc. | |
107 | // SHORTNAME is the short-name of the option, as a char, or '\0' if the | |
108 | // option has no short-name. If the option has no long-name, you | |
109 | // should specify the short-name in *both* VARNAME and here. | |
110 | // DEFAULT_VALUE is the value of the option if not specified on the | |
111 | // commandline, as a string. | |
112 | // HELPSTRING is the descriptive text used with the option via --help | |
113 | // HELPARG is how you define the argument to the option. | |
114 | // --help output is "-shortname HELPARG, --longname HELPARG: HELPSTRING" | |
115 | // HELPARG should be NULL iff the option is a bool and takes no arg. | |
116 | // READER provides parse_to_value, which is a function that will convert | |
117 | // a char* argument into the proper type and store it in some variable. | |
118 | // A One_option struct initializes itself with the global list of options | |
119 | // at constructor time, so be careful making one of these. | |
120 | struct One_option | |
121 | { | |
122 | std::string longname; | |
123 | Dashes dashes; | |
124 | char shortname; | |
125 | const char* default_value; | |
126 | const char* helpstring; | |
127 | const char* helparg; | |
128 | Struct_var* reader; | |
129 | ||
130 | One_option(const char* ln, Dashes d, char sn, const char* dv, | |
131 | const char* hs, const char* ha, Struct_var* r) | |
132 | : longname(ln), dashes(d), shortname(sn), default_value(dv ? dv : ""), | |
133 | helpstring(hs), helparg(ha), reader(r) | |
134 | { | |
135 | // In longname, we convert all underscores to dashes, since GNU | |
136 | // style uses dashes in option names. longname is likely to have | |
137 | // underscores in it because it's also used to declare a C++ | |
138 | // function. | |
139 | const char* pos = strchr(this->longname.c_str(), '_'); | |
140 | for (; pos; pos = strchr(pos, '_')) | |
141 | this->longname[pos - this->longname.c_str()] = '-'; | |
142 | ||
143 | // We only register ourselves if our helpstring is not NULL. This | |
144 | // is to support the "no-VAR" boolean variables, which we | |
145 | // conditionally turn on by defining "no-VAR" help text. | |
146 | if (this->helpstring) | |
147 | this->register_option(); | |
148 | } | |
149 | ||
150 | // This option takes an argument iff helparg is not NULL. | |
151 | bool | |
152 | takes_argument() const | |
153 | { return this->helparg != NULL; } | |
154 | ||
155 | // Register this option with the global list of options. | |
156 | void | |
157 | register_option(); | |
158 | ||
159 | // Print this option to stdout (used with --help). | |
160 | void | |
161 | print() const; | |
162 | }; | |
163 | ||
164 | // All options have a Struct_##varname that inherits from this and | |
165 | // actually implements parse_to_value for that option. | |
166 | struct Struct_var | |
167 | { | |
168 | // OPTION: the name of the option as specified on the commandline, | |
169 | // including leading dashes, and any text following the option: | |
170 | // "-O", "--defsym=mysym=0x1000", etc. | |
171 | // ARG: the arg associated with this option, or NULL if the option | |
172 | // takes no argument: "2", "mysym=0x1000", etc. | |
173 | // CMDLINE: the global Command_line object. Used by DEFINE_special. | |
174 | // OPTIONS: the global General_options object. Used by DEFINE_special. | |
175 | virtual void | |
176 | parse_to_value(const char* option, const char* arg, | |
177 | Command_line* cmdline, General_options* options) = 0; | |
178 | virtual | |
179 | ~Struct_var() // To make gcc happy. | |
180 | { } | |
181 | }; | |
bae7f79e | 182 | |
ee1fe73e ILT |
183 | // This is for "special" options that aren't of any predefined type. |
184 | struct Struct_special : public Struct_var | |
185 | { | |
186 | // If you change this, change the parse-fn in DEFINE_special as well. | |
187 | typedef void (General_options::*Parse_function)(const char*, const char*, | |
188 | Command_line*); | |
189 | Struct_special(const char* varname, Dashes dashes, char shortname, | |
190 | Parse_function parse_function, | |
191 | const char* helpstring, const char* helparg) | |
192 | : option(varname, dashes, shortname, "", helpstring, helparg, this), | |
193 | parse(parse_function) | |
194 | { } | |
195 | ||
196 | void parse_to_value(const char* option, const char* arg, | |
197 | Command_line* cmdline, General_options* options) | |
198 | { (options->*(this->parse))(option, arg, cmdline); } | |
199 | ||
200 | One_option option; | |
201 | Parse_function parse; | |
202 | }; | |
203 | ||
204 | } // End namespace options. | |
205 | ||
206 | ||
207 | // These are helper macros use by DEFINE_uint64/etc below. | |
208 | // This macro is used inside the General_options_ class, so defines | |
209 | // var() and set_var() as General_options methods. Arguments as are | |
210 | // for the constructor for One_option. param_type__ is the same as | |
211 | // type__ for built-in types, and "const type__ &" otherwise. | |
212 | #define DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
213 | default_value_as_string__, helpstring__, helparg__, \ | |
214 | type__, param_type__, parse_fn__) \ | |
215 | public: \ | |
216 | param_type__ \ | |
217 | varname__() const \ | |
218 | { return this->varname__##_.value; } \ | |
219 | \ | |
220 | bool \ | |
221 | user_set_##varname__() const \ | |
222 | { return this->varname__##_.user_set_via_option; } \ | |
223 | \ | |
224 | private: \ | |
225 | struct Struct_##varname__ : public options::Struct_var \ | |
226 | { \ | |
227 | Struct_##varname__() \ | |
228 | : option(#varname__, dashes__, shortname__, default_value_as_string__, \ | |
229 | helpstring__, helparg__, this), \ | |
230 | user_set_via_option(false), value(default_value__) \ | |
231 | { } \ | |
232 | \ | |
233 | void \ | |
234 | parse_to_value(const char* option_name, const char* arg, \ | |
235 | Command_line*, General_options*) \ | |
236 | { \ | |
237 | parse_fn__(option_name, arg, &this->value); \ | |
238 | this->user_set_via_option = true; \ | |
239 | } \ | |
240 | \ | |
241 | options::One_option option; \ | |
242 | bool user_set_via_option; \ | |
243 | type__ value; \ | |
244 | }; \ | |
245 | Struct_##varname__ varname__##_; \ | |
246 | void \ | |
247 | set_##varname__(param_type__ value) \ | |
248 | { this->varname__##_.value = value; } | |
249 | ||
250 | // These macros allow for easy addition of a new commandline option. | |
251 | ||
252 | // If no_helpstring__ is not NULL, then in addition to creating | |
253 | // VARNAME, we also create an option called no-VARNAME. | |
254 | #define DEFINE_bool(varname__, dashes__, shortname__, default_value__, \ | |
255 | helpstring__, no_helpstring__) \ | |
256 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
257 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
258 | bool, bool, options::parse_bool) \ | |
259 | struct Struct_no_##varname__ : public options::Struct_var \ | |
260 | { \ | |
261 | Struct_no_##varname__() : option("no-" #varname__, dashes__, '\0', \ | |
262 | default_value__ ? "false" : "true", \ | |
263 | no_helpstring__, NULL, this) \ | |
264 | { } \ | |
265 | \ | |
266 | void \ | |
267 | parse_to_value(const char*, const char*, \ | |
268 | Command_line*, General_options* options) \ | |
269 | { options->set_##varname__(false); } \ | |
270 | \ | |
271 | options::One_option option; \ | |
272 | }; \ | |
273 | Struct_no_##varname__ no_##varname__##_initializer_ | |
274 | ||
275 | #define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \ | |
276 | helpstring__, helparg__) \ | |
277 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
278 | #default_value__, helpstring__, helparg__, \ | |
279 | int, int, options::parse_uint) | |
280 | ||
281 | #define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \ | |
282 | helpstring__, helparg__) \ | |
283 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
284 | #default_value__, helpstring__, helparg__, \ | |
285 | uint64_t, uint64_t, options::parse_uint64) | |
286 | ||
c18476e7 ILT |
287 | #define DEFINE_double(varname__, dashes__, shortname__, default_value__, \ |
288 | helpstring__, helparg__) \ | |
289 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
290 | #default_value__, helpstring__, helparg__, \ | |
291 | double, double, options::parse_double) | |
292 | ||
ee1fe73e ILT |
293 | #define DEFINE_string(varname__, dashes__, shortname__, default_value__, \ |
294 | helpstring__, helparg__) \ | |
295 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
296 | default_value__, helpstring__, helparg__, \ | |
297 | const char*, const char*, options::parse_string) | |
298 | ||
299 | // This is like DEFINE_string, but we convert each occurrence to a | |
300 | // Search_directory and store it in a vector. Thus we also have the | |
301 | // add_to_VARNAME() method, to append to the vector. | |
302 | #define DEFINE_dirlist(varname__, dashes__, shortname__, \ | |
303 | helpstring__, helparg__) \ | |
304 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
305 | "", helpstring__, helparg__, options::Dir_list, \ | |
306 | const options::Dir_list&, options::parse_dirlist) \ | |
307 | void \ | |
308 | add_to_##varname__(const char* new_value) \ | |
309 | { options::parse_dirlist(NULL, new_value, &this->varname__##_.value); } \ | |
310 | void \ | |
311 | add_search_directory_to_##varname__(const Search_directory& dir) \ | |
312 | { this->varname__##_.value.push_back(dir); } | |
313 | ||
314 | // When you have a list of possible values (expressed as string) | |
315 | // After helparg__ should come an initializer list, like | |
316 | // {"foo", "bar", "baz"} | |
317 | #define DEFINE_enum(varname__, dashes__, shortname__, default_value__, \ | |
318 | helpstring__, helparg__, ...) \ | |
319 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
320 | default_value__, helpstring__, helparg__, \ | |
321 | const char*, const char*, parse_choices_##varname__) \ | |
322 | private: \ | |
323 | static void parse_choices_##varname__(const char* option_name, \ | |
324 | const char* arg, \ | |
325 | const char** retval) { \ | |
326 | const char* choices[] = __VA_ARGS__; \ | |
327 | options::parse_choices(option_name, arg, retval, \ | |
328 | choices, sizeof(choices) / sizeof(*choices)); \ | |
329 | } | |
330 | ||
331 | // This is used for non-standard flags. It defines no functions; it | |
332 | // just calls General_options::parse_VARNAME whenever the flag is | |
333 | // seen. We declare parse_VARNAME as a static member of | |
334 | // General_options; you are responsible for defining it there. | |
335 | // helparg__ should be NULL iff this special-option is a boolean. | |
336 | #define DEFINE_special(varname__, dashes__, shortname__, \ | |
337 | helpstring__, helparg__) \ | |
338 | private: \ | |
339 | void parse_##varname__(const char* option, const char* arg, \ | |
340 | Command_line* inputs); \ | |
341 | struct Struct_##varname__ : public options::Struct_special \ | |
342 | { \ | |
343 | Struct_##varname__() \ | |
344 | : options::Struct_special(#varname__, dashes__, shortname__, \ | |
345 | &General_options::parse_##varname__, \ | |
346 | helpstring__, helparg__) \ | |
347 | { } \ | |
348 | }; \ | |
349 | Struct_##varname__ varname__##_initializer_ | |
bae7f79e | 350 | |
bae7f79e | 351 | |
ad2d6943 ILT |
352 | // A directory to search. For each directory we record whether it is |
353 | // in the sysroot. We need to know this so that, if a linker script | |
354 | // is found within the sysroot, we will apply the sysroot to any files | |
355 | // named by that script. | |
356 | ||
357 | class Search_directory | |
358 | { | |
359 | public: | |
360 | // We need a default constructor because we put this in a | |
361 | // std::vector. | |
362 | Search_directory() | |
363 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
364 | { } | |
365 | ||
366 | // This is the usual constructor. | |
367 | Search_directory(const char* name, bool put_in_sysroot) | |
368 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
15893b88 ILT |
369 | { |
370 | if (this->name_.empty()) | |
371 | this->name_ = "."; | |
372 | } | |
ad2d6943 ILT |
373 | |
374 | // This is called if we have a sysroot. The sysroot is prefixed to | |
375 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
376 | // set to true for any enries which are in the sysroot (this will | |
377 | // naturally include any entries for which put_in_sysroot_ is true). | |
378 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
379 | // passing SYSROOT to lrealpath. | |
380 | void | |
381 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
382 | ||
383 | // Get the directory name. | |
384 | const std::string& | |
385 | name() const | |
386 | { return this->name_; } | |
387 | ||
388 | // Return whether this directory is in the sysroot. | |
389 | bool | |
390 | is_in_sysroot() const | |
391 | { return this->is_in_sysroot_; } | |
392 | ||
393 | private: | |
394 | std::string name_; | |
395 | bool put_in_sysroot_; | |
396 | bool is_in_sysroot_; | |
397 | }; | |
398 | ||
bae7f79e ILT |
399 | class General_options |
400 | { | |
ee1fe73e ILT |
401 | private: |
402 | // NOTE: For every option that you add here, also consider if you | |
403 | // should add it to Position_dependent_options. | |
404 | DEFINE_special(help, options::TWO_DASHES, '\0', | |
a4d4b13f | 405 | N_("Report usage information"), NULL); |
ee1fe73e | 406 | DEFINE_special(version, options::TWO_DASHES, 'v', |
a4d4b13f | 407 | N_("Report version information"), NULL); |
ee1fe73e | 408 | |
fee2edb1 ILT |
409 | // These options are sorted approximately so that for each letter in |
410 | // the alphabet, we show the option whose shortname is that letter | |
411 | // (if any) and then every longname that starts with that letter (in | |
412 | // alphabetical order). For both, lowercase sorts before uppercase. | |
413 | // The -z options come last. | |
414 | ||
ee1fe73e | 415 | DEFINE_bool(allow_shlib_undefined, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
416 | N_("Allow unresolved references in shared libraries"), |
417 | N_("Do not allow unresolved references in shared libraries")); | |
ee1fe73e ILT |
418 | |
419 | DEFINE_bool(as_needed, options::TWO_DASHES, '\0', false, | |
a4d4b13f ILT |
420 | N_("Only set DT_NEEDED for dynamic libs if used"), |
421 | N_("Always DT_NEEDED for dynamic libs")); | |
ee1fe73e | 422 | |
fee2edb1 ILT |
423 | // This should really be an "enum", but it's too easy for folks to |
424 | // forget to update the list as they add new targets. So we just | |
425 | // accept any string. We'll fail later (when the string is parsed), | |
426 | // if the target isn't actually supported. | |
427 | DEFINE_string(format, options::TWO_DASHES, 'b', "elf", | |
428 | N_("Set input format"), ("[elf,binary]")); | |
429 | ||
ee1fe73e | 430 | DEFINE_bool(Bdynamic, options::ONE_DASH, '\0', true, |
a4d4b13f | 431 | N_("-l searches for shared libraries"), NULL); |
ee1fe73e ILT |
432 | // Bstatic affects the same variable as Bdynamic, so we have to use |
433 | // the "special" macro to make that happen. | |
434 | DEFINE_special(Bstatic, options::ONE_DASH, '\0', | |
a4d4b13f | 435 | N_("-l does not search for shared libraries"), NULL); |
ee1fe73e ILT |
436 | |
437 | DEFINE_bool(Bsymbolic, options::ONE_DASH, '\0', false, | |
a4d4b13f | 438 | N_("Bind defined symbols locally"), NULL); |
ee1fe73e | 439 | |
ee1fe73e ILT |
440 | #ifdef HAVE_ZLIB_H |
441 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
442 | N_("Compress .debug_* sections in the output file"), |
443 | ("[none,zlib]"), | |
ee1fe73e ILT |
444 | {"none", "zlib"}); |
445 | #else | |
446 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
447 | N_("Compress .debug_* sections in the output file"), |
448 | N_("[none]"), | |
ee1fe73e ILT |
449 | {"none"}); |
450 | #endif | |
0dfbdef4 | 451 | |
ee1fe73e | 452 | DEFINE_bool(define_common, options::TWO_DASHES, 'd', false, |
a4d4b13f ILT |
453 | N_("Define common symbols"), |
454 | N_("Do not define common symbols")); | |
ee1fe73e | 455 | DEFINE_bool(dc, options::ONE_DASH, '\0', false, |
a4d4b13f | 456 | N_("Alias for -d"), NULL); |
ee1fe73e | 457 | DEFINE_bool(dp, options::ONE_DASH, '\0', false, |
a4d4b13f | 458 | N_("Alias for -d"), NULL); |
d391083d | 459 | |
fee2edb1 | 460 | DEFINE_string(debug, options::TWO_DASHES, '\0', "", |
2285a610 ILT |
461 | N_("Turn on debugging"), |
462 | N_("[all,files,script,task][,...]")); | |
fee2edb1 | 463 | |
ee1fe73e | 464 | DEFINE_special(defsym, options::TWO_DASHES, '\0', |
a4d4b13f | 465 | N_("Define a symbol"), N_("SYMBOL=EXPRESSION")); |
a6badf5a | 466 | |
ee1fe73e ILT |
467 | DEFINE_bool(demangle, options::TWO_DASHES, '\0', |
468 | getenv("COLLECT_NO_DEMANGLE") == NULL, | |
a4d4b13f ILT |
469 | N_("Demangle C++ symbols in log messages"), |
470 | N_("Do not demangle C++ symbols in log messages")); | |
fced7afd | 471 | |
ee1fe73e | 472 | DEFINE_bool(detect_odr_violations, options::TWO_DASHES, '\0', false, |
a4d4b13f | 473 | N_("Try to detect violations of the One Definition Rule"), |
ee1fe73e ILT |
474 | NULL); |
475 | ||
476 | DEFINE_string(entry, options::TWO_DASHES, 'e', NULL, | |
a4d4b13f | 477 | N_("Set program start address"), N_("ADDRESS")); |
ee1fe73e ILT |
478 | |
479 | DEFINE_bool(export_dynamic, options::TWO_DASHES, 'E', false, | |
a4d4b13f | 480 | N_("Export all dynamic symbols"), NULL); |
dbe717ef | 481 | |
ee1fe73e | 482 | DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false, |
a4d4b13f | 483 | N_("Create exception frame header"), NULL); |
ee1fe73e ILT |
484 | |
485 | DEFINE_string(soname, options::ONE_DASH, 'h', NULL, | |
a4d4b13f | 486 | N_("Set shared library name"), N_("FILENAME")); |
ee1fe73e | 487 | |
c18476e7 ILT |
488 | DEFINE_double(hash_bucket_empty_fraction, options::TWO_DASHES, '\0', 0.0, |
489 | N_("Min fraction of empty buckets in dynamic hash"), | |
490 | N_("FRACTION")); | |
491 | ||
13670ee6 | 492 | DEFINE_enum(hash_style, options::TWO_DASHES, '\0', "sysv", |
a4d4b13f | 493 | N_("Dynamic hash style"), N_("[sysv,gnu,both]"), |
13670ee6 ILT |
494 | {"sysv", "gnu", "both"}); |
495 | ||
ee1fe73e | 496 | DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL, |
a4d4b13f | 497 | N_("Set dynamic linker path"), N_("PROGRAM")); |
ee1fe73e | 498 | |
fee2edb1 ILT |
499 | DEFINE_special(just_symbols, options::TWO_DASHES, '\0', |
500 | N_("Read only symbol values from FILE"), N_("FILE")); | |
501 | ||
ee1fe73e | 502 | DEFINE_special(library, options::TWO_DASHES, 'l', |
a4d4b13f | 503 | N_("Search for library LIBNAME"), N_("LIBNAME")); |
bae7f79e | 504 | |
ee1fe73e | 505 | DEFINE_dirlist(library_path, options::TWO_DASHES, 'L', |
a4d4b13f | 506 | N_("Add directory to search path"), N_("DIR")); |
ee1fe73e ILT |
507 | |
508 | DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "", | |
a4d4b13f | 509 | N_("Ignored for compatibility"), N_("EMULATION")); |
ee1fe73e ILT |
510 | |
511 | DEFINE_string(output, options::TWO_DASHES, 'o', "a.out", | |
a4d4b13f | 512 | N_("Set output file name"), N_("FILE")); |
ee1fe73e ILT |
513 | |
514 | DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0, | |
a4d4b13f | 515 | N_("Optimize output file size"), N_("LEVEL")); |
ee1fe73e | 516 | |
a4d4b13f ILT |
517 | DEFINE_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf", |
518 | N_("Set output format"), N_("[binary]")); | |
ee1fe73e ILT |
519 | |
520 | DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false, | |
a4d4b13f | 521 | N_("Generate relocations in output"), NULL); |
ee1fe73e ILT |
522 | |
523 | DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false, | |
a4d4b13f | 524 | N_("Generate relocatable output"), NULL); |
ee1fe73e ILT |
525 | |
526 | // -R really means -rpath, but can mean --just-symbols for | |
527 | // compatibility with GNU ld. -rpath is always -rpath, so we list | |
528 | // it separately. | |
529 | DEFINE_special(R, options::EXACTLY_ONE_DASH, 'R', | |
a4d4b13f | 530 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e ILT |
531 | |
532 | DEFINE_dirlist(rpath, options::ONE_DASH, '\0', | |
a4d4b13f | 533 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e | 534 | |
ee1fe73e | 535 | DEFINE_dirlist(rpath_link, options::TWO_DASHES, '\0', |
a4d4b13f ILT |
536 | N_("Add DIR to link time shared library search path"), |
537 | N_("DIR")); | |
ee1fe73e ILT |
538 | |
539 | DEFINE_bool(strip_all, options::TWO_DASHES, 's', false, | |
a4d4b13f | 540 | N_("Strip all symbols"), NULL); |
fee2edb1 ILT |
541 | DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false, |
542 | N_("Strip debugging information"), NULL); | |
ee1fe73e | 543 | DEFINE_bool(strip_debug_gdb, options::TWO_DASHES, '\0', false, |
a4d4b13f | 544 | N_("Strip debug symbols that are unused by gdb " |
ee1fe73e | 545 | "(at least versions <= 6.7)"), NULL); |
ee1fe73e ILT |
546 | |
547 | DEFINE_bool(shared, options::ONE_DASH, '\0', false, | |
a4d4b13f | 548 | N_("Generate shared library"), NULL); |
ee1fe73e ILT |
549 | |
550 | // This is not actually special in any way, but I need to give it | |
551 | // a non-standard accessor-function name because 'static' is a keyword. | |
552 | DEFINE_special(static, options::ONE_DASH, '\0', | |
a4d4b13f | 553 | N_("Do not link against shared libraries"), NULL); |
ee1fe73e ILT |
554 | |
555 | DEFINE_bool(stats, options::TWO_DASHES, '\0', false, | |
a4d4b13f | 556 | N_("Print resource usage statistics"), NULL); |
ee1fe73e ILT |
557 | |
558 | DEFINE_string(sysroot, options::TWO_DASHES, '\0', "", | |
a4d4b13f | 559 | N_("Set target system root directory"), N_("DIR")); |
ee1fe73e | 560 | |
ee1fe73e | 561 | DEFINE_special(script, options::TWO_DASHES, 'T', |
a4d4b13f | 562 | N_("Read linker script"), N_("FILE")); |
ee1fe73e ILT |
563 | |
564 | DEFINE_bool(threads, options::TWO_DASHES, '\0', false, | |
a4d4b13f ILT |
565 | N_("Run the linker multi-threaded"), |
566 | N_("Do not run the linker multi-threaded")); | |
ee1fe73e | 567 | DEFINE_uint(thread_count, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 568 | N_("Number of threads to use"), N_("COUNT")); |
ee1fe73e | 569 | DEFINE_uint(thread_count_initial, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 570 | N_("Number of threads to use in initial pass"), N_("COUNT")); |
ee1fe73e | 571 | DEFINE_uint(thread_count_middle, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 572 | N_("Number of threads to use in middle pass"), N_("COUNT")); |
ee1fe73e | 573 | DEFINE_uint(thread_count_final, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 574 | N_("Number of threads to use in final pass"), N_("COUNT")); |
ee1fe73e | 575 | |
fee2edb1 ILT |
576 | DEFINE_uint64(Tbss, options::ONE_DASH, '\0', -1U, |
577 | N_("Set the address of the bss segment"), N_("ADDRESS")); | |
578 | DEFINE_uint64(Tdata, options::ONE_DASH, '\0', -1U, | |
579 | N_("Set the address of the data segment"), N_("ADDRESS")); | |
580 | DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U, | |
581 | N_("Set the address of the text segment"), N_("ADDRESS")); | |
582 | ||
2285a610 ILT |
583 | DEFINE_bool(verbose, options::TWO_DASHES, '\0', false, |
584 | N_("Synonym for --debug=files"), NULL); | |
585 | ||
fee2edb1 ILT |
586 | DEFINE_special(version_script, options::TWO_DASHES, '\0', |
587 | N_("Read version script"), N_("FILE")); | |
588 | ||
ee1fe73e | 589 | DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
590 | N_("Include all archive contents"), |
591 | N_("Include only needed archive contents")); | |
ee1fe73e ILT |
592 | |
593 | DEFINE_special(start_group, options::TWO_DASHES, '(', | |
a4d4b13f | 594 | N_("Start a library search group"), NULL); |
ee1fe73e | 595 | DEFINE_special(end_group, options::TWO_DASHES, ')', |
a4d4b13f | 596 | N_("End a library search group"), NULL); |
ee1fe73e | 597 | |
fee2edb1 | 598 | // The -z options. |
ee1fe73e ILT |
599 | |
600 | // Both execstack and noexecstack differ from the default execstack_ | |
601 | // value, so we need to use different variables for them. | |
fee2edb1 ILT |
602 | DEFINE_uint64(common_page_size, options::DASH_Z, '\0', 0, |
603 | N_("Set common page size to SIZE"), N_("SIZE")); | |
eb42429a ILT |
604 | DEFINE_bool(defs, options::DASH_Z, '\0', false, |
605 | N_("Report undefined symbols (even with --shared)"), | |
606 | NULL); | |
ee1fe73e | 607 | DEFINE_bool(execstack, options::DASH_Z, '\0', false, |
a4d4b13f | 608 | N_("Mark output as requiring executable stack"), NULL); |
ee1fe73e | 609 | DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0, |
a4d4b13f | 610 | N_("Set maximum page size to SIZE"), N_("SIZE")); |
fee2edb1 ILT |
611 | DEFINE_bool(noexecstack, options::DASH_Z, '\0', false, |
612 | N_("Mark output as not requiring executable stack"), NULL); | |
bae7f79e | 613 | |
ee1fe73e ILT |
614 | public: |
615 | typedef options::Dir_list Dir_list; | |
ca3a67a5 | 616 | |
ee1fe73e | 617 | General_options(); |
61ba1cf9 | 618 | |
ee1fe73e ILT |
619 | // Does post-processing on flags, making sure they all have |
620 | // non-conflicting values. Also converts some flags from their | |
621 | // "standard" types (string, etc), to another type (enum, DirList), | |
622 | // which can be accessed via a separate method. Dies if it notices | |
623 | // any problems. | |
624 | void finalize(); | |
516cb3d0 | 625 | |
ee1fe73e ILT |
626 | // The macro defines output() (based on --output), but that's a |
627 | // generic name. Provide this alternative name, which is clearer. | |
8851ecca | 628 | const char* |
ee1fe73e ILT |
629 | output_file_name() const |
630 | { return this->output(); } | |
92e059d8 | 631 | |
8851ecca ILT |
632 | // This is not defined via a flag, but combines flags to say whether |
633 | // the output is position-independent or not. | |
634 | bool | |
635 | output_is_position_independent() const | |
636 | { return this->shared(); } | |
637 | ||
ee1fe73e ILT |
638 | // This would normally be static(), and defined automatically, but |
639 | // since static is a keyword, we need to come up with our own name. | |
bae7f79e ILT |
640 | bool |
641 | is_static() const | |
ee1fe73e | 642 | { return static_; } |
756ac4a8 | 643 | |
ee1fe73e ILT |
644 | // In addition to getting the input and output formats as a string |
645 | // (via format() and oformat()), we also give access as an enum. | |
646 | enum Object_format | |
647 | { | |
648 | // Ordinary ELF. | |
649 | OBJECT_FORMAT_ELF, | |
650 | // Straight binary format. | |
651 | OBJECT_FORMAT_BINARY | |
652 | }; | |
fe9a4c12 | 653 | |
ee1fe73e ILT |
654 | // Note: these functions are not very fast. |
655 | Object_format format_enum() const; | |
656 | Object_format oformat_enum() const; | |
fe9a4c12 | 657 | |
ee1fe73e ILT |
658 | // These are the best way to get access to the execstack state, |
659 | // not execstack() and noexecstack() which are hard to use properly. | |
35cdfc9a ILT |
660 | bool |
661 | is_execstack_set() const | |
ee1fe73e | 662 | { return this->execstack_status_ != EXECSTACK_FROM_INPUT; } |
35cdfc9a ILT |
663 | |
664 | bool | |
665 | is_stack_executable() const | |
ee1fe73e | 666 | { return this->execstack_status_ == EXECSTACK_YES; } |
c7912668 | 667 | |
bae7f79e | 668 | private: |
dbe717ef ILT |
669 | // Don't copy this structure. |
670 | General_options(const General_options&); | |
671 | General_options& operator=(const General_options&); | |
672 | ||
35cdfc9a ILT |
673 | // Whether to mark the stack as executable. |
674 | enum Execstack | |
675 | { | |
676 | // Not set on command line. | |
677 | EXECSTACK_FROM_INPUT, | |
ee1fe73e | 678 | // Mark the stack as executable (-z execstack). |
35cdfc9a | 679 | EXECSTACK_YES, |
ee1fe73e | 680 | // Mark the stack as not executable (-z noexecstack). |
35cdfc9a ILT |
681 | EXECSTACK_NO |
682 | }; | |
683 | ||
ee1fe73e | 684 | Execstack execstack_status_; |
92e059d8 | 685 | void |
ee1fe73e ILT |
686 | set_execstack_status(Execstack value) |
687 | { execstack_status_ = value; } | |
92e059d8 | 688 | |
ee1fe73e | 689 | bool static_; |
bae7f79e | 690 | void |
45aa233b | 691 | set_static(bool value) |
ee1fe73e | 692 | { static_ = value; } |
652ec9bd | 693 | |
ee1fe73e | 694 | // These are called by finalize() to set up the search-path correctly. |
35cdfc9a | 695 | void |
ee1fe73e ILT |
696 | add_to_library_path_with_sysroot(const char* arg) |
697 | { this->add_search_directory_to_library_path(Search_directory(arg, true)); } | |
c7912668 | 698 | |
ad2d6943 ILT |
699 | // Apply any sysroot to the directory lists. |
700 | void | |
701 | add_sysroot(); | |
bae7f79e ILT |
702 | }; |
703 | ||
ee1fe73e ILT |
704 | // The position-dependent options. We use this to store the state of |
705 | // the commandline at a particular point in parsing for later | |
706 | // reference. For instance, if we see "ld --whole-archive foo.a | |
707 | // --no-whole-archive," we want to store the whole-archive option with | |
708 | // foo.a, so when the time comes to parse foo.a we know we should do | |
709 | // it in whole-archive mode. We could store all of General_options, | |
710 | // but that's big, so we just pick the subset of flags that actually | |
711 | // change in a position-dependent way. | |
712 | ||
713 | #define DEFINE_posdep(varname__, type__) \ | |
714 | public: \ | |
715 | type__ \ | |
716 | varname__() const \ | |
717 | { return this->varname__##_; } \ | |
718 | \ | |
719 | void \ | |
720 | set_##varname__(type__ value) \ | |
721 | { this->varname__##_ = value; } \ | |
722 | private: \ | |
723 | type__ varname__##_ | |
bae7f79e ILT |
724 | |
725 | class Position_dependent_options | |
726 | { | |
727 | public: | |
ee1fe73e ILT |
728 | Position_dependent_options(const General_options& options |
729 | = Position_dependent_options::default_options_) | |
730 | { copy_from_options(options); } | |
bae7f79e | 731 | |
ee1fe73e ILT |
732 | void copy_from_options(const General_options& options) |
733 | { | |
734 | this->set_as_needed(options.as_needed()); | |
735 | this->set_Bdynamic(options.Bdynamic()); | |
736 | this->set_format_enum(options.format_enum()); | |
737 | this->set_whole_archive(options.whole_archive()); | |
738 | } | |
bc644c6c | 739 | |
ee1fe73e ILT |
740 | DEFINE_posdep(as_needed, bool); |
741 | DEFINE_posdep(Bdynamic, bool); | |
742 | DEFINE_posdep(format_enum, General_options::Object_format); | |
743 | DEFINE_posdep(whole_archive, bool); | |
7cc619c3 | 744 | |
dbe717ef | 745 | private: |
ee1fe73e ILT |
746 | // This is a General_options with everything set to its default |
747 | // value. A Position_dependent_options created with no argument | |
748 | // will take its values from here. | |
749 | static General_options default_options_; | |
bae7f79e ILT |
750 | }; |
751 | ||
ee1fe73e | 752 | |
bae7f79e ILT |
753 | // A single file or library argument from the command line. |
754 | ||
ead1e424 | 755 | class Input_file_argument |
bae7f79e ILT |
756 | { |
757 | public: | |
51dee2fe ILT |
758 | // name: file name or library name |
759 | // is_lib: true if name is a library name: that is, emits the leading | |
760 | // "lib" and trailing ".so"/".a" from the name | |
761 | // extra_search_path: an extra directory to look for the file, prior | |
762 | // to checking the normal library search path. If this is "", | |
763 | // then no extra directory is added. | |
88dd47ac | 764 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 765 | // options: The position dependent options at this point in the |
ad2d6943 | 766 | // command line, such as --whole-archive. |
ead1e424 | 767 | Input_file_argument() |
88dd47ac ILT |
768 | : name_(), is_lib_(false), extra_search_path_(""), just_symbols_(false), |
769 | options_() | |
ead1e424 ILT |
770 | { } |
771 | ||
772 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 773 | const char* extra_search_path, |
ee1fe73e ILT |
774 | bool just_symbols, |
775 | const Position_dependent_options& options) | |
776 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), | |
777 | just_symbols_(just_symbols), options_(options) | |
778 | { } | |
779 | ||
780 | // You can also pass in a General_options instance instead of a | |
781 | // Position_dependent_options. In that case, we extract the | |
782 | // position-independent vars from the General_options and only store | |
783 | // those. | |
784 | Input_file_argument(const char* name, bool is_lib, | |
785 | const char* extra_search_path, | |
786 | bool just_symbols, | |
787 | const General_options& options) | |
51dee2fe | 788 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
88dd47ac | 789 | just_symbols_(just_symbols), options_(options) |
bae7f79e ILT |
790 | { } |
791 | ||
792 | const char* | |
793 | name() const | |
dbe717ef | 794 | { return this->name_.c_str(); } |
bae7f79e ILT |
795 | |
796 | const Position_dependent_options& | |
797 | options() const | |
798 | { return this->options_; } | |
799 | ||
800 | bool | |
801 | is_lib() const | |
61ba1cf9 | 802 | { return this->is_lib_; } |
bae7f79e | 803 | |
51dee2fe ILT |
804 | const char* |
805 | extra_search_path() const | |
806 | { | |
807 | return (this->extra_search_path_.empty() | |
808 | ? NULL | |
ee1fe73e | 809 | : this->extra_search_path_.c_str()); |
51dee2fe ILT |
810 | } |
811 | ||
88dd47ac ILT |
812 | // Return whether we should only read symbols from this file. |
813 | bool | |
814 | just_symbols() const | |
815 | { return this->just_symbols_; } | |
816 | ||
51dee2fe ILT |
817 | // Return whether this file may require a search using the -L |
818 | // options. | |
819 | bool | |
820 | may_need_search() const | |
821 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
822 | ||
bae7f79e | 823 | private: |
dbe717ef ILT |
824 | // We use std::string, not const char*, here for convenience when |
825 | // using script files, so that we do not have to preserve the string | |
826 | // in that case. | |
827 | std::string name_; | |
61ba1cf9 | 828 | bool is_lib_; |
51dee2fe | 829 | std::string extra_search_path_; |
88dd47ac | 830 | bool just_symbols_; |
bae7f79e ILT |
831 | Position_dependent_options options_; |
832 | }; | |
833 | ||
ead1e424 ILT |
834 | // A file or library, or a group, from the command line. |
835 | ||
836 | class Input_argument | |
837 | { | |
838 | public: | |
839 | // Create a file or library argument. | |
840 | explicit Input_argument(Input_file_argument file) | |
841 | : is_file_(true), file_(file), group_(NULL) | |
842 | { } | |
843 | ||
844 | // Create a group argument. | |
845 | explicit Input_argument(Input_file_group* group) | |
846 | : is_file_(false), group_(group) | |
847 | { } | |
848 | ||
849 | // Return whether this is a file. | |
850 | bool | |
851 | is_file() const | |
852 | { return this->is_file_; } | |
853 | ||
854 | // Return whether this is a group. | |
855 | bool | |
856 | is_group() const | |
857 | { return !this->is_file_; } | |
858 | ||
859 | // Return the information about the file. | |
860 | const Input_file_argument& | |
861 | file() const | |
862 | { | |
a3ad94ed | 863 | gold_assert(this->is_file_); |
ead1e424 ILT |
864 | return this->file_; |
865 | } | |
866 | ||
867 | // Return the information about the group. | |
868 | const Input_file_group* | |
869 | group() const | |
870 | { | |
a3ad94ed | 871 | gold_assert(!this->is_file_); |
ead1e424 ILT |
872 | return this->group_; |
873 | } | |
874 | ||
875 | Input_file_group* | |
876 | group() | |
877 | { | |
a3ad94ed | 878 | gold_assert(!this->is_file_); |
ead1e424 ILT |
879 | return this->group_; |
880 | } | |
881 | ||
882 | private: | |
883 | bool is_file_; | |
884 | Input_file_argument file_; | |
885 | Input_file_group* group_; | |
886 | }; | |
887 | ||
888 | // A group from the command line. This is a set of arguments within | |
889 | // --start-group ... --end-group. | |
890 | ||
891 | class Input_file_group | |
92e059d8 | 892 | { |
ead1e424 ILT |
893 | public: |
894 | typedef std::vector<Input_argument> Files; | |
895 | typedef Files::const_iterator const_iterator; | |
896 | ||
897 | Input_file_group() | |
898 | : files_() | |
899 | { } | |
900 | ||
901 | // Add a file to the end of the group. | |
902 | void | |
903 | add_file(const Input_file_argument& arg) | |
904 | { this->files_.push_back(Input_argument(arg)); } | |
905 | ||
906 | // Iterators to iterate over the group contents. | |
907 | ||
908 | const_iterator | |
909 | begin() const | |
910 | { return this->files_.begin(); } | |
911 | ||
912 | const_iterator | |
913 | end() const | |
914 | { return this->files_.end(); } | |
915 | ||
916 | private: | |
917 | Files files_; | |
92e059d8 ILT |
918 | }; |
919 | ||
dbe717ef ILT |
920 | // A list of files from the command line or a script. |
921 | ||
922 | class Input_arguments | |
923 | { | |
924 | public: | |
925 | typedef std::vector<Input_argument> Input_argument_list; | |
926 | typedef Input_argument_list::const_iterator const_iterator; | |
927 | ||
928 | Input_arguments() | |
929 | : input_argument_list_(), in_group_(false) | |
930 | { } | |
931 | ||
932 | // Add a file. | |
933 | void | |
934 | add_file(const Input_file_argument& arg); | |
935 | ||
936 | // Start a group (the --start-group option). | |
937 | void | |
938 | start_group(); | |
939 | ||
940 | // End a group (the --end-group option). | |
941 | void | |
942 | end_group(); | |
943 | ||
944 | // Return whether we are currently in a group. | |
945 | bool | |
946 | in_group() const | |
947 | { return this->in_group_; } | |
948 | ||
fe9a4c12 ILT |
949 | // The number of entries in the list. |
950 | int | |
951 | size() const | |
952 | { return this->input_argument_list_.size(); } | |
953 | ||
dbe717ef ILT |
954 | // Iterators to iterate over the list of input files. |
955 | ||
956 | const_iterator | |
957 | begin() const | |
958 | { return this->input_argument_list_.begin(); } | |
959 | ||
960 | const_iterator | |
961 | end() const | |
962 | { return this->input_argument_list_.end(); } | |
963 | ||
964 | // Return whether the list is empty. | |
965 | bool | |
966 | empty() const | |
967 | { return this->input_argument_list_.empty(); } | |
968 | ||
969 | private: | |
970 | Input_argument_list input_argument_list_; | |
971 | bool in_group_; | |
972 | }; | |
973 | ||
ee1fe73e ILT |
974 | |
975 | // All the information read from the command line. These are held in | |
976 | // three separate structs: one to hold the options (--foo), one to | |
977 | // hold the filenames listed on the commandline, and one to hold | |
978 | // linker script information. This third is not a subset of the other | |
979 | // two because linker scripts can be specified either as options (via | |
980 | // -T) or as a file. | |
bae7f79e ILT |
981 | |
982 | class Command_line | |
983 | { | |
984 | public: | |
ead1e424 ILT |
985 | typedef Input_arguments::const_iterator const_iterator; |
986 | ||
a5dc0706 | 987 | Command_line(); |
bae7f79e ILT |
988 | |
989 | // Process the command line options. This will exit with an | |
990 | // appropriate error message if an unrecognized option is seen. | |
991 | void | |
ee1fe73e | 992 | process(int argc, const char** argv); |
bae7f79e | 993 | |
a0451b38 | 994 | // Process one command-line option. This takes the index of argv to |
ee1fe73e ILT |
995 | // process, and returns the index for the next option. no_more_options |
996 | // is set to true if argv[i] is "--". | |
61ba1cf9 | 997 | int |
ee1fe73e ILT |
998 | process_one_option(int argc, const char** argv, int i, |
999 | bool* no_more_options); | |
3c2fafa5 | 1000 | |
61ba1cf9 | 1001 | // Get the general options. |
bae7f79e ILT |
1002 | const General_options& |
1003 | options() const | |
1004 | { return this->options_; } | |
1005 | ||
3c2fafa5 ILT |
1006 | // Get the position dependent options. |
1007 | const Position_dependent_options& | |
1008 | position_dependent_options() const | |
1009 | { return this->position_options_; } | |
1010 | ||
a5dc0706 ILT |
1011 | // Get the linker-script options. |
1012 | Script_options& | |
e5756efb | 1013 | script_options() |
a5dc0706 | 1014 | { return this->script_options_; } |
e5756efb | 1015 | |
a5dc0706 ILT |
1016 | // Get the version-script options: a convenience routine. |
1017 | const Version_script_info& | |
1018 | version_script() const | |
1019 | { return *this->script_options_.version_script_info(); } | |
e5756efb | 1020 | |
ee1fe73e ILT |
1021 | // Get the input files. |
1022 | Input_arguments& | |
1023 | inputs() | |
1024 | { return this->inputs_; } | |
1025 | ||
fe9a4c12 ILT |
1026 | // The number of input files. |
1027 | int | |
1028 | number_of_input_files() const | |
1029 | { return this->inputs_.size(); } | |
1030 | ||
ead1e424 ILT |
1031 | // Iterators to iterate over the list of input files. |
1032 | ||
1033 | const_iterator | |
1034 | begin() const | |
1035 | { return this->inputs_.begin(); } | |
1036 | ||
1037 | const_iterator | |
1038 | end() const | |
1039 | { return this->inputs_.end(); } | |
bae7f79e ILT |
1040 | |
1041 | private: | |
ead1e424 ILT |
1042 | Command_line(const Command_line&); |
1043 | Command_line& operator=(const Command_line&); | |
1044 | ||
bae7f79e ILT |
1045 | General_options options_; |
1046 | Position_dependent_options position_options_; | |
a5dc0706 | 1047 | Script_options script_options_; |
ead1e424 | 1048 | Input_arguments inputs_; |
bae7f79e ILT |
1049 | }; |
1050 | ||
1051 | } // End namespace gold. | |
1052 | ||
1053 | #endif // !defined(GOLD_OPTIONS_H) |