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bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
dde3f402 | 3 | // Copyright 2006, 2007, 2008, 2009, 2010 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> |
cbb93e63 | 40 | #include <cstring> |
bae7f79e | 41 | #include <list> |
a192ba05 | 42 | #include <map> |
61ba1cf9 | 43 | #include <string> |
92e059d8 | 44 | #include <vector> |
bae7f79e | 45 | |
0daa6f62 | 46 | #include "elfcpp.h" |
3c2fafa5 ILT |
47 | #include "script.h" |
48 | ||
bae7f79e ILT |
49 | namespace gold |
50 | { | |
51 | ||
52 | class Command_line; | |
ee1fe73e ILT |
53 | class General_options; |
54 | class Search_directory; | |
ead1e424 | 55 | class Input_file_group; |
3c2fafa5 | 56 | class Position_dependent_options; |
0daa6f62 | 57 | class Target; |
89fc3421 | 58 | class Plugin_manager; |
bae7f79e | 59 | |
266d0a74 ILT |
60 | // Incremental build action for a specific file, as selected by the user. |
61 | ||
62 | enum Incremental_disposition | |
63 | { | |
64 | // Determine the status from the timestamp (default). | |
65 | INCREMENTAL_CHECK, | |
66 | // Assume the file changed from the previous build. | |
67 | INCREMENTAL_CHANGED, | |
68 | // Assume the file didn't change from the previous build. | |
69 | INCREMENTAL_UNCHANGED | |
70 | }; | |
71 | ||
ee1fe73e ILT |
72 | // The nested namespace is to contain all the global variables and |
73 | // structs that need to be defined in the .h file, but do not need to | |
74 | // be used outside this class. | |
c7912668 ILT |
75 | namespace options |
76 | { | |
ee1fe73e | 77 | typedef std::vector<Search_directory> Dir_list; |
c5818ff1 | 78 | typedef Unordered_set<std::string> String_set; |
ee1fe73e ILT |
79 | |
80 | // These routines convert from a string option to various types. | |
81 | // Each gives a fatal error if it cannot parse the argument. | |
82 | ||
83 | extern void | |
84 | parse_bool(const char* option_name, const char* arg, bool* retval); | |
85 | ||
c0a62865 DK |
86 | extern void |
87 | parse_int(const char* option_name, const char* arg, int* retval); | |
88 | ||
ee1fe73e ILT |
89 | extern void |
90 | parse_uint(const char* option_name, const char* arg, int* retval); | |
91 | ||
92 | extern void | |
c18476e7 ILT |
93 | parse_uint64(const char* option_name, const char* arg, uint64_t* retval); |
94 | ||
95 | extern void | |
96 | parse_double(const char* option_name, const char* arg, double* retval); | |
ee1fe73e ILT |
97 | |
98 | extern void | |
99 | parse_string(const char* option_name, const char* arg, const char** retval); | |
100 | ||
086a1841 ILT |
101 | extern void |
102 | parse_optional_string(const char* option_name, const char* arg, | |
103 | const char** retval); | |
104 | ||
ee1fe73e ILT |
105 | extern void |
106 | parse_dirlist(const char* option_name, const char* arg, Dir_list* retval); | |
107 | ||
c5818ff1 CC |
108 | extern void |
109 | parse_set(const char* option_name, const char* arg, String_set* retval); | |
110 | ||
ee1fe73e ILT |
111 | extern void |
112 | parse_choices(const char* option_name, const char* arg, const char** retval, | |
113 | const char* choices[], int num_choices); | |
114 | ||
115 | struct Struct_var; | |
116 | ||
117 | // Most options have both a shortname (one letter) and a longname. | |
118 | // This enum controls how many dashes are expected for longname access | |
119 | // -- shortnames always use one dash. Most longnames will accept | |
120 | // either one dash or two; the only difference between ONE_DASH and | |
121 | // TWO_DASHES is how we print the option in --help. However, some | |
122 | // longnames require two dashes, and some require only one. The | |
123 | // special value DASH_Z means that the option is preceded by "-z". | |
124 | enum Dashes | |
125 | { | |
126 | ONE_DASH, TWO_DASHES, EXACTLY_ONE_DASH, EXACTLY_TWO_DASHES, DASH_Z | |
127 | }; | |
128 | ||
129 | // LONGNAME is the long-name of the option with dashes converted to | |
130 | // underscores, or else the short-name if the option has no long-name. | |
131 | // It is never the empty string. | |
132 | // DASHES is an instance of the Dashes enum: ONE_DASH, TWO_DASHES, etc. | |
133 | // SHORTNAME is the short-name of the option, as a char, or '\0' if the | |
134 | // option has no short-name. If the option has no long-name, you | |
135 | // should specify the short-name in *both* VARNAME and here. | |
136 | // DEFAULT_VALUE is the value of the option if not specified on the | |
137 | // commandline, as a string. | |
138 | // HELPSTRING is the descriptive text used with the option via --help | |
139 | // HELPARG is how you define the argument to the option. | |
140 | // --help output is "-shortname HELPARG, --longname HELPARG: HELPSTRING" | |
141 | // HELPARG should be NULL iff the option is a bool and takes no arg. | |
086a1841 ILT |
142 | // OPTIONAL_ARG is true if this option takes an optional argument. An |
143 | // optional argument must be specifid as --OPTION=VALUE, not | |
144 | // --OPTION VALUE. | |
ee1fe73e ILT |
145 | // READER provides parse_to_value, which is a function that will convert |
146 | // a char* argument into the proper type and store it in some variable. | |
147 | // A One_option struct initializes itself with the global list of options | |
148 | // at constructor time, so be careful making one of these. | |
149 | struct One_option | |
150 | { | |
151 | std::string longname; | |
152 | Dashes dashes; | |
153 | char shortname; | |
154 | const char* default_value; | |
155 | const char* helpstring; | |
156 | const char* helparg; | |
086a1841 | 157 | bool optional_arg; |
ee1fe73e ILT |
158 | Struct_var* reader; |
159 | ||
160 | One_option(const char* ln, Dashes d, char sn, const char* dv, | |
086a1841 | 161 | const char* hs, const char* ha, bool oa, Struct_var* r) |
ee1fe73e | 162 | : longname(ln), dashes(d), shortname(sn), default_value(dv ? dv : ""), |
086a1841 | 163 | helpstring(hs), helparg(ha), optional_arg(oa), reader(r) |
ee1fe73e ILT |
164 | { |
165 | // In longname, we convert all underscores to dashes, since GNU | |
166 | // style uses dashes in option names. longname is likely to have | |
167 | // underscores in it because it's also used to declare a C++ | |
168 | // function. | |
169 | const char* pos = strchr(this->longname.c_str(), '_'); | |
170 | for (; pos; pos = strchr(pos, '_')) | |
171 | this->longname[pos - this->longname.c_str()] = '-'; | |
172 | ||
173 | // We only register ourselves if our helpstring is not NULL. This | |
174 | // is to support the "no-VAR" boolean variables, which we | |
175 | // conditionally turn on by defining "no-VAR" help text. | |
176 | if (this->helpstring) | |
177 | this->register_option(); | |
178 | } | |
179 | ||
180 | // This option takes an argument iff helparg is not NULL. | |
181 | bool | |
182 | takes_argument() const | |
183 | { return this->helparg != NULL; } | |
184 | ||
086a1841 ILT |
185 | // Whether the argument is optional. |
186 | bool | |
187 | takes_optional_argument() const | |
188 | { return this->optional_arg; } | |
189 | ||
ee1fe73e ILT |
190 | // Register this option with the global list of options. |
191 | void | |
192 | register_option(); | |
193 | ||
194 | // Print this option to stdout (used with --help). | |
195 | void | |
196 | print() const; | |
197 | }; | |
198 | ||
199 | // All options have a Struct_##varname that inherits from this and | |
200 | // actually implements parse_to_value for that option. | |
201 | struct Struct_var | |
202 | { | |
203 | // OPTION: the name of the option as specified on the commandline, | |
204 | // including leading dashes, and any text following the option: | |
205 | // "-O", "--defsym=mysym=0x1000", etc. | |
206 | // ARG: the arg associated with this option, or NULL if the option | |
207 | // takes no argument: "2", "mysym=0x1000", etc. | |
208 | // CMDLINE: the global Command_line object. Used by DEFINE_special. | |
209 | // OPTIONS: the global General_options object. Used by DEFINE_special. | |
210 | virtual void | |
211 | parse_to_value(const char* option, const char* arg, | |
212 | Command_line* cmdline, General_options* options) = 0; | |
213 | virtual | |
214 | ~Struct_var() // To make gcc happy. | |
215 | { } | |
216 | }; | |
bae7f79e | 217 | |
ee1fe73e ILT |
218 | // This is for "special" options that aren't of any predefined type. |
219 | struct Struct_special : public Struct_var | |
220 | { | |
221 | // If you change this, change the parse-fn in DEFINE_special as well. | |
222 | typedef void (General_options::*Parse_function)(const char*, const char*, | |
223 | Command_line*); | |
224 | Struct_special(const char* varname, Dashes dashes, char shortname, | |
225 | Parse_function parse_function, | |
226 | const char* helpstring, const char* helparg) | |
086a1841 | 227 | : option(varname, dashes, shortname, "", helpstring, helparg, false, this), |
ee1fe73e ILT |
228 | parse(parse_function) |
229 | { } | |
230 | ||
2ea97941 | 231 | void parse_to_value(const char* option, const char* arg, |
ee1fe73e | 232 | Command_line* cmdline, General_options* options) |
2ea97941 | 233 | { (options->*(this->parse))(option, arg, cmdline); } |
ee1fe73e ILT |
234 | |
235 | One_option option; | |
236 | Parse_function parse; | |
237 | }; | |
238 | ||
239 | } // End namespace options. | |
240 | ||
241 | ||
242 | // These are helper macros use by DEFINE_uint64/etc below. | |
243 | // This macro is used inside the General_options_ class, so defines | |
244 | // var() and set_var() as General_options methods. Arguments as are | |
245 | // for the constructor for One_option. param_type__ is the same as | |
246 | // type__ for built-in types, and "const type__ &" otherwise. | |
e96c574b DK |
247 | // |
248 | // When we define the linker command option "assert", the macro argument | |
249 | // varname__ of DEFINE_var below will be replaced by "assert". On Mac OSX | |
250 | // assert.h is included implicitly by one of the library headers we use. To | |
251 | // avoid unintended macro substitution of "assert()", we need to enclose | |
252 | // varname__ with parenthese. | |
ee1fe73e ILT |
253 | #define DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
254 | default_value_as_string__, helpstring__, helparg__, \ | |
086a1841 | 255 | optional_arg__, type__, param_type__, parse_fn__) \ |
ee1fe73e ILT |
256 | public: \ |
257 | param_type__ \ | |
e96c574b | 258 | (varname__)() const \ |
ee1fe73e ILT |
259 | { return this->varname__##_.value; } \ |
260 | \ | |
261 | bool \ | |
262 | user_set_##varname__() const \ | |
263 | { return this->varname__##_.user_set_via_option; } \ | |
264 | \ | |
2b706932 ILT |
265 | void \ |
266 | set_user_set_##varname__() \ | |
267 | { this->varname__##_.user_set_via_option = true; } \ | |
268 | \ | |
ee1fe73e ILT |
269 | private: \ |
270 | struct Struct_##varname__ : public options::Struct_var \ | |
271 | { \ | |
272 | Struct_##varname__() \ | |
273 | : option(#varname__, dashes__, shortname__, default_value_as_string__, \ | |
086a1841 | 274 | helpstring__, helparg__, optional_arg__, this), \ |
ee1fe73e ILT |
275 | user_set_via_option(false), value(default_value__) \ |
276 | { } \ | |
277 | \ | |
278 | void \ | |
279 | parse_to_value(const char* option_name, const char* arg, \ | |
280 | Command_line*, General_options*) \ | |
281 | { \ | |
282 | parse_fn__(option_name, arg, &this->value); \ | |
283 | this->user_set_via_option = true; \ | |
284 | } \ | |
285 | \ | |
286 | options::One_option option; \ | |
287 | bool user_set_via_option; \ | |
288 | type__ value; \ | |
289 | }; \ | |
290 | Struct_##varname__ varname__##_; \ | |
291 | void \ | |
292 | set_##varname__(param_type__ value) \ | |
293 | { this->varname__##_.value = value; } | |
294 | ||
295 | // These macros allow for easy addition of a new commandline option. | |
296 | ||
297 | // If no_helpstring__ is not NULL, then in addition to creating | |
d98bc257 ILT |
298 | // VARNAME, we also create an option called no-VARNAME (or, for a -z |
299 | // option, noVARNAME). | |
ee1fe73e ILT |
300 | #define DEFINE_bool(varname__, dashes__, shortname__, default_value__, \ |
301 | helpstring__, no_helpstring__) \ | |
302 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
303 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
086a1841 | 304 | false, bool, bool, options::parse_bool) \ |
ee1fe73e ILT |
305 | struct Struct_no_##varname__ : public options::Struct_var \ |
306 | { \ | |
d98bc257 ILT |
307 | Struct_no_##varname__() : option((dashes__ == options::DASH_Z \ |
308 | ? "no" #varname__ \ | |
309 | : "no-" #varname__), \ | |
310 | dashes__, '\0', \ | |
ee1fe73e | 311 | default_value__ ? "false" : "true", \ |
086a1841 | 312 | no_helpstring__, NULL, false, this) \ |
ee1fe73e ILT |
313 | { } \ |
314 | \ | |
315 | void \ | |
316 | parse_to_value(const char*, const char*, \ | |
317 | Command_line*, General_options* options) \ | |
41263c05 DK |
318 | { \ |
319 | options->set_##varname__(false); \ | |
320 | options->set_user_set_##varname__(); \ | |
321 | } \ | |
ee1fe73e ILT |
322 | \ |
323 | options::One_option option; \ | |
324 | }; \ | |
325 | Struct_no_##varname__ no_##varname__##_initializer_ | |
326 | ||
7c414435 DM |
327 | #define DEFINE_enable(varname__, dashes__, shortname__, default_value__, \ |
328 | helpstring__, no_helpstring__) \ | |
329 | DEFINE_var(enable_##varname__, dashes__, shortname__, default_value__, \ | |
330 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
331 | false, bool, bool, options::parse_bool) \ | |
332 | struct Struct_disable_##varname__ : public options::Struct_var \ | |
333 | { \ | |
334 | Struct_disable_##varname__() : option("disable-" #varname__, \ | |
335 | dashes__, '\0', \ | |
336 | default_value__ ? "false" : "true", \ | |
337 | no_helpstring__, NULL, false, this) \ | |
338 | { } \ | |
339 | \ | |
340 | void \ | |
341 | parse_to_value(const char*, const char*, \ | |
342 | Command_line*, General_options* options) \ | |
343 | { options->set_enable_##varname__(false); } \ | |
344 | \ | |
345 | options::One_option option; \ | |
346 | }; \ | |
347 | Struct_disable_##varname__ disable_##varname__##_initializer_ | |
348 | ||
c0a62865 DK |
349 | #define DEFINE_int(varname__, dashes__, shortname__, default_value__, \ |
350 | helpstring__, helparg__) \ | |
351 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
352 | #default_value__, helpstring__, helparg__, false, \ | |
353 | int, int, options::parse_int) | |
354 | ||
ee1fe73e ILT |
355 | #define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \ |
356 | helpstring__, helparg__) \ | |
357 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 358 | #default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
359 | int, int, options::parse_uint) |
360 | ||
361 | #define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \ | |
362 | helpstring__, helparg__) \ | |
363 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 364 | #default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
365 | uint64_t, uint64_t, options::parse_uint64) |
366 | ||
c18476e7 ILT |
367 | #define DEFINE_double(varname__, dashes__, shortname__, default_value__, \ |
368 | helpstring__, helparg__) \ | |
369 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 370 | #default_value__, helpstring__, helparg__, false, \ |
c18476e7 ILT |
371 | double, double, options::parse_double) |
372 | ||
ee1fe73e ILT |
373 | #define DEFINE_string(varname__, dashes__, shortname__, default_value__, \ |
374 | helpstring__, helparg__) \ | |
375 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 376 | default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
377 | const char*, const char*, options::parse_string) |
378 | ||
379 | // This is like DEFINE_string, but we convert each occurrence to a | |
380 | // Search_directory and store it in a vector. Thus we also have the | |
381 | // add_to_VARNAME() method, to append to the vector. | |
382 | #define DEFINE_dirlist(varname__, dashes__, shortname__, \ | |
383 | helpstring__, helparg__) \ | |
384 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
086a1841 | 385 | "", helpstring__, helparg__, false, options::Dir_list, \ |
ee1fe73e ILT |
386 | const options::Dir_list&, options::parse_dirlist) \ |
387 | void \ | |
388 | add_to_##varname__(const char* new_value) \ | |
389 | { options::parse_dirlist(NULL, new_value, &this->varname__##_.value); } \ | |
390 | void \ | |
391 | add_search_directory_to_##varname__(const Search_directory& dir) \ | |
392 | { this->varname__##_.value.push_back(dir); } | |
393 | ||
c5818ff1 CC |
394 | // This is like DEFINE_string, but we store a set of strings. |
395 | #define DEFINE_set(varname__, dashes__, shortname__, \ | |
396 | helpstring__, helparg__) \ | |
397 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
398 | "", helpstring__, helparg__, false, options::String_set, \ | |
399 | const options::String_set&, options::parse_set) \ | |
400 | public: \ | |
401 | bool \ | |
402 | any_##varname__() const \ | |
403 | { return !this->varname__##_.value.empty(); } \ | |
f3e9c5c5 | 404 | \ |
c5818ff1 CC |
405 | bool \ |
406 | is_##varname__(const char* symbol) const \ | |
407 | { \ | |
408 | return (!this->varname__##_.value.empty() \ | |
409 | && (this->varname__##_.value.find(std::string(symbol)) \ | |
410 | != this->varname__##_.value.end())); \ | |
f3e9c5c5 ILT |
411 | } \ |
412 | \ | |
413 | options::String_set::const_iterator \ | |
414 | varname__##_begin() const \ | |
415 | { return this->varname__##_.value.begin(); } \ | |
416 | \ | |
417 | options::String_set::const_iterator \ | |
418 | varname__##_end() const \ | |
419 | { return this->varname__##_.value.end(); } | |
c5818ff1 | 420 | |
ee1fe73e ILT |
421 | // When you have a list of possible values (expressed as string) |
422 | // After helparg__ should come an initializer list, like | |
423 | // {"foo", "bar", "baz"} | |
424 | #define DEFINE_enum(varname__, dashes__, shortname__, default_value__, \ | |
425 | helpstring__, helparg__, ...) \ | |
426 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 427 | default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
428 | const char*, const char*, parse_choices_##varname__) \ |
429 | private: \ | |
430 | static void parse_choices_##varname__(const char* option_name, \ | |
431 | const char* arg, \ | |
432 | const char** retval) { \ | |
433 | const char* choices[] = __VA_ARGS__; \ | |
434 | options::parse_choices(option_name, arg, retval, \ | |
435 | choices, sizeof(choices) / sizeof(*choices)); \ | |
436 | } | |
437 | ||
2b706932 ILT |
438 | // This is like DEFINE_bool, but VARNAME is the name of a different |
439 | // option. This option becomes an alias for that one. INVERT is true | |
440 | // if this option is an inversion of the other one. | |
441 | #define DEFINE_bool_alias(option__, varname__, dashes__, shortname__, \ | |
442 | helpstring__, no_helpstring__, invert__) \ | |
443 | private: \ | |
444 | struct Struct_##option__ : public options::Struct_var \ | |
445 | { \ | |
446 | Struct_##option__() \ | |
447 | : option(#option__, dashes__, shortname__, "", helpstring__, \ | |
448 | NULL, false, this) \ | |
449 | { } \ | |
450 | \ | |
451 | void \ | |
452 | parse_to_value(const char*, const char*, \ | |
453 | Command_line*, General_options* options) \ | |
454 | { \ | |
455 | options->set_##varname__(!invert__); \ | |
456 | options->set_user_set_##varname__(); \ | |
457 | } \ | |
458 | \ | |
459 | options::One_option option; \ | |
460 | }; \ | |
461 | Struct_##option__ option__##_; \ | |
462 | \ | |
463 | struct Struct_no_##option__ : public options::Struct_var \ | |
464 | { \ | |
465 | Struct_no_##option__() \ | |
466 | : option((dashes__ == options::DASH_Z \ | |
467 | ? "no" #option__ \ | |
468 | : "no-" #option__), \ | |
469 | dashes__, '\0', "", no_helpstring__, \ | |
470 | NULL, false, this) \ | |
471 | { } \ | |
472 | \ | |
473 | void \ | |
474 | parse_to_value(const char*, const char*, \ | |
475 | Command_line*, General_options* options) \ | |
476 | { \ | |
477 | options->set_##varname__(invert__); \ | |
478 | options->set_user_set_##varname__(); \ | |
479 | } \ | |
480 | \ | |
481 | options::One_option option; \ | |
482 | }; \ | |
483 | Struct_no_##option__ no_##option__##_initializer_ | |
484 | ||
ee1fe73e ILT |
485 | // This is used for non-standard flags. It defines no functions; it |
486 | // just calls General_options::parse_VARNAME whenever the flag is | |
487 | // seen. We declare parse_VARNAME as a static member of | |
488 | // General_options; you are responsible for defining it there. | |
489 | // helparg__ should be NULL iff this special-option is a boolean. | |
490 | #define DEFINE_special(varname__, dashes__, shortname__, \ | |
491 | helpstring__, helparg__) \ | |
492 | private: \ | |
493 | void parse_##varname__(const char* option, const char* arg, \ | |
494 | Command_line* inputs); \ | |
495 | struct Struct_##varname__ : public options::Struct_special \ | |
496 | { \ | |
497 | Struct_##varname__() \ | |
498 | : options::Struct_special(#varname__, dashes__, shortname__, \ | |
499 | &General_options::parse_##varname__, \ | |
500 | helpstring__, helparg__) \ | |
501 | { } \ | |
502 | }; \ | |
503 | Struct_##varname__ varname__##_initializer_ | |
bae7f79e | 504 | |
086a1841 ILT |
505 | // An option that takes an optional string argument. If the option is |
506 | // used with no argument, the value will be the default, and | |
507 | // user_set_via_option will be true. | |
508 | #define DEFINE_optional_string(varname__, dashes__, shortname__, \ | |
509 | default_value__, \ | |
510 | helpstring__, helparg__) \ | |
511 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
512 | default_value__, helpstring__, helparg__, true, \ | |
513 | const char*, const char*, options::parse_optional_string) | |
bae7f79e | 514 | |
ad2d6943 ILT |
515 | // A directory to search. For each directory we record whether it is |
516 | // in the sysroot. We need to know this so that, if a linker script | |
517 | // is found within the sysroot, we will apply the sysroot to any files | |
518 | // named by that script. | |
519 | ||
520 | class Search_directory | |
521 | { | |
522 | public: | |
523 | // We need a default constructor because we put this in a | |
524 | // std::vector. | |
525 | Search_directory() | |
526 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
527 | { } | |
528 | ||
529 | // This is the usual constructor. | |
2ea97941 ILT |
530 | Search_directory(const char* name, bool put_in_sysroot) |
531 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
15893b88 ILT |
532 | { |
533 | if (this->name_.empty()) | |
534 | this->name_ = "."; | |
535 | } | |
ad2d6943 ILT |
536 | |
537 | // This is called if we have a sysroot. The sysroot is prefixed to | |
538 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
539 | // set to true for any enries which are in the sysroot (this will | |
540 | // naturally include any entries for which put_in_sysroot_ is true). | |
541 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
542 | // passing SYSROOT to lrealpath. | |
543 | void | |
544 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
545 | ||
546 | // Get the directory name. | |
547 | const std::string& | |
548 | name() const | |
549 | { return this->name_; } | |
550 | ||
551 | // Return whether this directory is in the sysroot. | |
552 | bool | |
553 | is_in_sysroot() const | |
554 | { return this->is_in_sysroot_; } | |
555 | ||
fd9d194f ILT |
556 | // Return whether this is considered a system directory. |
557 | bool | |
558 | is_system_directory() const | |
559 | { return this->put_in_sysroot_ || this->is_in_sysroot_; } | |
560 | ||
ad2d6943 | 561 | private: |
fd9d194f | 562 | // The directory name. |
ad2d6943 | 563 | std::string name_; |
fd9d194f ILT |
564 | // True if the sysroot should be added as a prefix for this |
565 | // directory (if there is a sysroot). This is true for system | |
566 | // directories that we search by default. | |
ad2d6943 | 567 | bool put_in_sysroot_; |
fd9d194f ILT |
568 | // True if this directory is in the sysroot (if there is a sysroot). |
569 | // This is true if there is a sysroot and either 1) put_in_sysroot_ | |
570 | // is true, or 2) the directory happens to be in the sysroot based | |
571 | // on a pathname comparison. | |
ad2d6943 ILT |
572 | bool is_in_sysroot_; |
573 | }; | |
574 | ||
bae7f79e ILT |
575 | class General_options |
576 | { | |
ee1fe73e ILT |
577 | private: |
578 | // NOTE: For every option that you add here, also consider if you | |
579 | // should add it to Position_dependent_options. | |
580 | DEFINE_special(help, options::TWO_DASHES, '\0', | |
a4d4b13f | 581 | N_("Report usage information"), NULL); |
ee1fe73e | 582 | DEFINE_special(version, options::TWO_DASHES, 'v', |
a4d4b13f | 583 | N_("Report version information"), NULL); |
b5be4a7c DM |
584 | DEFINE_special(V, options::EXACTLY_ONE_DASH, '\0', |
585 | N_("Report version and target information"), NULL); | |
ee1fe73e | 586 | |
fee2edb1 ILT |
587 | // These options are sorted approximately so that for each letter in |
588 | // the alphabet, we show the option whose shortname is that letter | |
589 | // (if any) and then every longname that starts with that letter (in | |
590 | // alphabetical order). For both, lowercase sorts before uppercase. | |
591 | // The -z options come last. | |
592 | ||
7eaea549 ILT |
593 | DEFINE_bool(add_needed, options::TWO_DASHES, '\0', false, |
594 | N_("Not supported"), | |
595 | N_("Do not copy DT_NEEDED tags from shared libraries")); | |
596 | ||
9c4ae156 ILT |
597 | DEFINE_bool_alias(allow_multiple_definition, muldefs, options::TWO_DASHES, |
598 | '\0', N_("Allow multiple definitions of symbols"), | |
599 | N_("Do not allow multiple definitions"), false); | |
30bc8c46 | 600 | |
ee1fe73e | 601 | DEFINE_bool(allow_shlib_undefined, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
602 | N_("Allow unresolved references in shared libraries"), |
603 | N_("Do not allow unresolved references in shared libraries")); | |
ee1fe73e ILT |
604 | |
605 | DEFINE_bool(as_needed, options::TWO_DASHES, '\0', false, | |
7eaea549 ILT |
606 | N_("Only set DT_NEEDED for shared libraries if used"), |
607 | N_("Always DT_NEEDED for shared libraries")); | |
ee1fe73e | 608 | |
fe35d28d ILT |
609 | DEFINE_enum(assert, options::ONE_DASH, '\0', NULL, |
610 | N_("Ignored"), N_("[ignored]"), | |
611 | {"definitions", "nodefinitions", "nosymbolic", "pure-text"}); | |
612 | ||
fee2edb1 ILT |
613 | // This should really be an "enum", but it's too easy for folks to |
614 | // forget to update the list as they add new targets. So we just | |
615 | // accept any string. We'll fail later (when the string is parsed), | |
616 | // if the target isn't actually supported. | |
617 | DEFINE_string(format, options::TWO_DASHES, 'b', "elf", | |
618 | N_("Set input format"), ("[elf,binary]")); | |
619 | ||
ee1fe73e | 620 | DEFINE_bool(Bdynamic, options::ONE_DASH, '\0', true, |
a4d4b13f | 621 | N_("-l searches for shared libraries"), NULL); |
2b706932 ILT |
622 | DEFINE_bool_alias(Bstatic, Bdynamic, options::ONE_DASH, '\0', |
623 | N_("-l does not search for shared libraries"), NULL, | |
624 | true); | |
ee1fe73e ILT |
625 | |
626 | DEFINE_bool(Bsymbolic, options::ONE_DASH, '\0', false, | |
a4d4b13f | 627 | N_("Bind defined symbols locally"), NULL); |
ee1fe73e | 628 | |
f1f70eae ILT |
629 | DEFINE_bool(Bsymbolic_functions, options::ONE_DASH, '\0', false, |
630 | N_("Bind defined function symbols locally"), NULL); | |
631 | ||
8ed814a9 ILT |
632 | DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "sha1", |
633 | N_("Generate build ID note"), | |
634 | N_("[=STYLE]")); | |
635 | ||
34810851 ILT |
636 | DEFINE_bool(check_sections, options::TWO_DASHES, '\0', true, |
637 | N_("Check segment addresses for overlaps (default)"), | |
638 | N_("Do not check segment addresses for overlaps")); | |
639 | ||
ee1fe73e ILT |
640 | #ifdef HAVE_ZLIB_H |
641 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
642 | N_("Compress .debug_* sections in the output file"), |
643 | ("[none,zlib]"), | |
ee1fe73e ILT |
644 | {"none", "zlib"}); |
645 | #else | |
646 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
647 | N_("Compress .debug_* sections in the output file"), |
648 | N_("[none]"), | |
ee1fe73e ILT |
649 | {"none"}); |
650 | #endif | |
0dfbdef4 | 651 | |
7eaea549 ILT |
652 | DEFINE_bool(copy_dt_needed_entries, options::TWO_DASHES, '\0', false, |
653 | N_("Not supported"), | |
654 | N_("Do not copy DT_NEEDED tags from shared libraries")); | |
655 | ||
dde3f402 ILT |
656 | DEFINE_bool(cref, options::TWO_DASHES, '\0', false, |
657 | N_("Output cross reference table"), | |
658 | N_("Do not output cross reference table")); | |
659 | ||
ee1fe73e | 660 | DEFINE_bool(define_common, options::TWO_DASHES, 'd', false, |
a4d4b13f ILT |
661 | N_("Define common symbols"), |
662 | N_("Do not define common symbols")); | |
ee1fe73e | 663 | DEFINE_bool(dc, options::ONE_DASH, '\0', false, |
a4d4b13f | 664 | N_("Alias for -d"), NULL); |
ee1fe73e | 665 | DEFINE_bool(dp, options::ONE_DASH, '\0', false, |
a4d4b13f | 666 | N_("Alias for -d"), NULL); |
d391083d | 667 | |
fee2edb1 | 668 | DEFINE_string(debug, options::TWO_DASHES, '\0', "", |
2285a610 ILT |
669 | N_("Turn on debugging"), |
670 | N_("[all,files,script,task][,...]")); | |
fee2edb1 | 671 | |
ee1fe73e | 672 | DEFINE_special(defsym, options::TWO_DASHES, '\0', |
a4d4b13f | 673 | N_("Define a symbol"), N_("SYMBOL=EXPRESSION")); |
a6badf5a | 674 | |
086a1841 ILT |
675 | DEFINE_optional_string(demangle, options::TWO_DASHES, '\0', NULL, |
676 | N_("Demangle C++ symbols in log messages"), | |
677 | N_("[=STYLE]")); | |
678 | ||
679 | DEFINE_bool(no_demangle, options::TWO_DASHES, '\0', false, | |
680 | N_("Do not demangle C++ symbols in log messages"), | |
681 | NULL); | |
fced7afd | 682 | |
ee1fe73e | 683 | DEFINE_bool(detect_odr_violations, options::TWO_DASHES, '\0', false, |
a4d4b13f | 684 | N_("Try to detect violations of the One Definition Rule"), |
ee1fe73e ILT |
685 | NULL); |
686 | ||
ebcc8304 ILT |
687 | DEFINE_bool(discard_all, options::TWO_DASHES, 'x', false, |
688 | N_("Delete all local symbols"), NULL); | |
bb04269c DK |
689 | DEFINE_bool(discard_locals, options::TWO_DASHES, 'X', false, |
690 | N_("Delete all temporary local symbols"), NULL); | |
691 | ||
c82fbeee CS |
692 | DEFINE_bool(dynamic_list_data, options::TWO_DASHES, '\0', false, |
693 | N_("Add data symbols to dynamic symbols"), NULL); | |
694 | ||
695 | DEFINE_bool(dynamic_list_cpp_new, options::TWO_DASHES, '\0', false, | |
696 | N_("Add C++ operator new/delete to dynamic symbols"), NULL); | |
697 | ||
698 | DEFINE_bool(dynamic_list_cpp_typeinfo, options::TWO_DASHES, '\0', false, | |
699 | N_("Add C++ typeinfo to dynamic symbols"), NULL); | |
700 | ||
701 | DEFINE_special(dynamic_list, options::TWO_DASHES, '\0', | |
702 | N_("Read a list of dynamic symbols"), N_("FILE")); | |
703 | ||
ee1fe73e | 704 | DEFINE_string(entry, options::TWO_DASHES, 'e', NULL, |
a4d4b13f | 705 | N_("Set program start address"), N_("ADDRESS")); |
ee1fe73e | 706 | |
65514900 CC |
707 | DEFINE_special(exclude_libs, options::TWO_DASHES, '\0', |
708 | N_("Exclude libraries from automatic export"), | |
709 | N_(("lib,lib ..."))); | |
710 | ||
ee1fe73e | 711 | DEFINE_bool(export_dynamic, options::TWO_DASHES, 'E', false, |
ee769c88 ILT |
712 | N_("Export all dynamic symbols"), |
713 | N_("Do not export all dynamic symbols (default)")); | |
dbe717ef | 714 | |
ee1fe73e | 715 | DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false, |
a4d4b13f | 716 | N_("Create exception frame header"), NULL); |
ee1fe73e | 717 | |
d82a5bcc ILT |
718 | DEFINE_bool(fatal_warnings, options::TWO_DASHES, '\0', false, |
719 | N_("Treat warnings as errors"), | |
720 | N_("Do not treat warnings as errors")); | |
721 | ||
c6585162 ILT |
722 | DEFINE_string(fini, options::ONE_DASH, '\0', "_fini", |
723 | N_("Call SYMBOL at unload-time"), N_("SYMBOL")); | |
724 | ||
41263c05 DK |
725 | DEFINE_bool(fix_cortex_a8, options::TWO_DASHES, '\0', false, |
726 | N_("(ARM only) Fix binaries for Cortex-A8 erratum."), | |
727 | N_("(ARM only) Do not fix binaries for Cortex-A8 erratum.")); | |
728 | ||
9b2fd367 DK |
729 | DEFINE_special(fix_v4bx, options::TWO_DASHES, '\0', |
730 | N_("(ARM only) Rewrite BX rn as MOV pc, rn for ARMv4"), | |
731 | NULL); | |
732 | ||
733 | DEFINE_special(fix_v4bx_interworking, options::TWO_DASHES, '\0', | |
734 | N_("(ARM only) Rewrite BX rn branch to ARMv4 interworking " | |
735 | "veneer"), | |
736 | NULL); | |
737 | ||
fe35d28d ILT |
738 | DEFINE_bool(g, options::EXACTLY_ONE_DASH, '\0', false, |
739 | N_("Ignored"), NULL); | |
740 | ||
ee1fe73e | 741 | DEFINE_string(soname, options::ONE_DASH, 'h', NULL, |
a4d4b13f | 742 | N_("Set shared library name"), N_("FILENAME")); |
ee1fe73e | 743 | |
fe35d28d ILT |
744 | DEFINE_bool(i, options::EXACTLY_ONE_DASH, '\0', false, |
745 | N_("Ignored"), NULL); | |
746 | ||
c18476e7 ILT |
747 | DEFINE_double(hash_bucket_empty_fraction, options::TWO_DASHES, '\0', 0.0, |
748 | N_("Min fraction of empty buckets in dynamic hash"), | |
749 | N_("FRACTION")); | |
750 | ||
13670ee6 | 751 | DEFINE_enum(hash_style, options::TWO_DASHES, '\0', "sysv", |
a4d4b13f | 752 | N_("Dynamic hash style"), N_("[sysv,gnu,both]"), |
13670ee6 ILT |
753 | {"sysv", "gnu", "both"}); |
754 | ||
ee1fe73e | 755 | DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL, |
a4d4b13f | 756 | N_("Set dynamic linker path"), N_("PROGRAM")); |
ee1fe73e | 757 | |
266d0a74 ILT |
758 | DEFINE_bool(incremental, options::TWO_DASHES, '\0', false, |
759 | N_("Work in progress; do not use"), | |
760 | N_("Do a full build")); | |
761 | ||
762 | DEFINE_special(incremental_changed, options::TWO_DASHES, '\0', | |
763 | N_("Assume files changed"), NULL); | |
764 | ||
765 | DEFINE_special(incremental_unchanged, options::TWO_DASHES, '\0', | |
766 | N_("Assume files didn't change"), NULL); | |
767 | ||
768 | DEFINE_special(incremental_unknown, options::TWO_DASHES, '\0', | |
769 | N_("Use timestamps to check files (default)"), NULL); | |
770 | ||
c6585162 ILT |
771 | DEFINE_string(init, options::ONE_DASH, '\0', "_init", |
772 | N_("Call SYMBOL at load-time"), N_("SYMBOL")); | |
773 | ||
fee2edb1 ILT |
774 | DEFINE_special(just_symbols, options::TWO_DASHES, '\0', |
775 | N_("Read only symbol values from FILE"), N_("FILE")); | |
776 | ||
a2a5469e | 777 | DEFINE_bool(map_whole_files, options::TWO_DASHES, '\0', |
2c849493 ILT |
778 | sizeof(void*) >= 8, |
779 | N_("Map whole files to memory (default on 64-bit hosts)"), | |
780 | N_("Map relevant file parts to memory (default on 32-bit " | |
781 | "hosts)")); | |
a2a5469e CC |
782 | DEFINE_bool(keep_files_mapped, options::TWO_DASHES, '\0', true, |
783 | N_("Keep files mapped across passes (default)"), | |
784 | N_("Release mapped files after each pass")); | |
2c849493 | 785 | |
ee1fe73e | 786 | DEFINE_special(library, options::TWO_DASHES, 'l', |
a4d4b13f | 787 | N_("Search for library LIBNAME"), N_("LIBNAME")); |
bae7f79e | 788 | |
ee1fe73e | 789 | DEFINE_dirlist(library_path, options::TWO_DASHES, 'L', |
a4d4b13f | 790 | N_("Add directory to search path"), N_("DIR")); |
ee1fe73e ILT |
791 | |
792 | DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "", | |
a4d4b13f | 793 | N_("Ignored for compatibility"), N_("EMULATION")); |
ee1fe73e | 794 | |
7d9e3d98 ILT |
795 | DEFINE_bool(print_map, options::TWO_DASHES, 'M', false, |
796 | N_("Write map file on standard output"), NULL); | |
797 | DEFINE_string(Map, options::ONE_DASH, '\0', NULL, N_("Write map file"), | |
798 | N_("MAPFILENAME")); | |
799 | ||
af6156ef ILT |
800 | DEFINE_bool(nmagic, options::TWO_DASHES, 'n', false, |
801 | N_("Do not page align data"), NULL); | |
802 | DEFINE_bool(omagic, options::EXACTLY_TWO_DASHES, 'N', false, | |
803 | N_("Do not page align data, do not make text readonly"), | |
804 | N_("Page align data, make text readonly")); | |
805 | ||
7c414435 DM |
806 | DEFINE_enable(new_dtags, options::EXACTLY_TWO_DASHES, '\0', false, |
807 | N_("Enable use of DT_RUNPATH and DT_FLAGS"), | |
808 | N_("Disable use of DT_RUNPATH and DT_FLAGS")); | |
809 | ||
cdb0b8f5 ILT |
810 | DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false, |
811 | N_("Create an output file even if errors occur"), NULL); | |
812 | ||
f3e9c5c5 ILT |
813 | DEFINE_bool_alias(no_undefined, defs, options::TWO_DASHES, '\0', |
814 | N_("Report undefined symbols (even with --shared)"), | |
815 | NULL, false); | |
816 | ||
ee1fe73e | 817 | DEFINE_string(output, options::TWO_DASHES, 'o', "a.out", |
a4d4b13f | 818 | N_("Set output file name"), N_("FILE")); |
ee1fe73e ILT |
819 | |
820 | DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0, | |
a4d4b13f | 821 | N_("Optimize output file size"), N_("LEVEL")); |
ee1fe73e | 822 | |
a4d4b13f ILT |
823 | DEFINE_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf", |
824 | N_("Set output format"), N_("[binary]")); | |
ee1fe73e | 825 | |
374ad285 ILT |
826 | DEFINE_bool(pie, options::ONE_DASH, '\0', false, |
827 | N_("Create a position independent executable"), NULL); | |
828 | DEFINE_bool_alias(pic_executable, pie, options::TWO_DASHES, '\0', | |
829 | N_("Create a position independent executable"), NULL, | |
830 | false); | |
831 | ||
89fc3421 CC |
832 | #ifdef ENABLE_PLUGINS |
833 | DEFINE_special(plugin, options::TWO_DASHES, '\0', | |
4674ecfc CC |
834 | N_("Load a plugin library"), N_("PLUGIN")); |
835 | DEFINE_special(plugin_opt, options::TWO_DASHES, '\0', | |
836 | N_("Pass an option to the plugin"), N_("OPTION")); | |
89fc3421 CC |
837 | #endif |
838 | ||
ac45a351 CC |
839 | DEFINE_bool(preread_archive_symbols, options::TWO_DASHES, '\0', false, |
840 | N_("Preread archive symbols when multi-threaded"), NULL); | |
89fc3421 | 841 | |
92de84a6 ILT |
842 | DEFINE_string(print_symbol_counts, options::TWO_DASHES, '\0', NULL, |
843 | N_("Print symbols defined and used for each input"), | |
844 | N_("FILENAME")); | |
845 | ||
b5be4a7c DM |
846 | DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false, |
847 | N_("Ignored for SVR4 compatibility"), NULL); | |
848 | ||
ee1fe73e | 849 | DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false, |
a4d4b13f | 850 | N_("Generate relocations in output"), NULL); |
ee1fe73e ILT |
851 | |
852 | DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false, | |
a4d4b13f | 853 | N_("Generate relocatable output"), NULL); |
ee1fe73e | 854 | |
706e1f5e ILT |
855 | DEFINE_bool(relax, options::TWO_DASHES, '\0', false, |
856 | N_("Relax branches on certain targets"), NULL); | |
857 | ||
719328e1 ILT |
858 | DEFINE_string(retain_symbols_file, options::TWO_DASHES, '\0', NULL, |
859 | N_("keep only symbols listed in this file"), N_("FILE")); | |
8c604651 | 860 | |
ee1fe73e ILT |
861 | // -R really means -rpath, but can mean --just-symbols for |
862 | // compatibility with GNU ld. -rpath is always -rpath, so we list | |
863 | // it separately. | |
864 | DEFINE_special(R, options::EXACTLY_ONE_DASH, 'R', | |
a4d4b13f | 865 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e ILT |
866 | |
867 | DEFINE_dirlist(rpath, options::ONE_DASH, '\0', | |
a4d4b13f | 868 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e | 869 | |
ee1fe73e | 870 | DEFINE_dirlist(rpath_link, options::TWO_DASHES, '\0', |
a4d4b13f ILT |
871 | N_("Add DIR to link time shared library search path"), |
872 | N_("DIR")); | |
ee1fe73e | 873 | |
a192ba05 ILT |
874 | DEFINE_special(section_start, options::TWO_DASHES, '\0', |
875 | N_("Set address of section"), N_("SECTION=ADDRESS")); | |
876 | ||
fc59c572 ILT |
877 | DEFINE_optional_string(sort_common, options::TWO_DASHES, '\0', NULL, |
878 | N_("Sort common symbols by alignment"), | |
879 | N_("[={ascending,descending}]")); | |
880 | ||
9e9e071b ILT |
881 | DEFINE_uint(spare_dynamic_tags, options::TWO_DASHES, '\0', 5, |
882 | N_("Dynamic tag slots to reserve (default 5)"), | |
883 | N_("COUNT")); | |
884 | ||
ee1fe73e | 885 | DEFINE_bool(strip_all, options::TWO_DASHES, 's', false, |
a4d4b13f | 886 | N_("Strip all symbols"), NULL); |
fee2edb1 ILT |
887 | DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false, |
888 | N_("Strip debugging information"), NULL); | |
62b01cb5 ILT |
889 | DEFINE_bool(strip_debug_non_line, options::TWO_DASHES, '\0', false, |
890 | N_("Emit only debug line number information"), NULL); | |
ee1fe73e | 891 | DEFINE_bool(strip_debug_gdb, options::TWO_DASHES, '\0', false, |
a4d4b13f | 892 | N_("Strip debug symbols that are unused by gdb " |
ee1fe73e | 893 | "(at least versions <= 6.7)"), NULL); |
fd06b4aa CC |
894 | DEFINE_bool(strip_lto_sections, options::TWO_DASHES, '\0', true, |
895 | N_("Strip LTO intermediate code sections"), NULL); | |
ee1fe73e | 896 | |
c0a62865 DK |
897 | DEFINE_int(stub_group_size, options::TWO_DASHES , '\0', 1, |
898 | N_("(ARM only) The maximum distance from instructions in a group " | |
899 | "of sections to their stubs. Negative values mean stubs " | |
900 | "are always after the group. 1 means using default size.\n"), | |
901 | N_("SIZE")); | |
902 | ||
f773f3d2 CC |
903 | DEFINE_bool(no_keep_memory, options::TWO_DASHES, '\0', false, |
904 | N_("Use less memory and more disk I/O " | |
905 | "(included only for compatibility with GNU ld)"), NULL); | |
3b293544 | 906 | |
fe35d28d | 907 | DEFINE_bool(shared, options::ONE_DASH, 'G', false, |
a4d4b13f | 908 | N_("Generate shared library"), NULL); |
ee1fe73e | 909 | |
3b293544 CF |
910 | DEFINE_bool(Bshareable, options::ONE_DASH, '\0', false, |
911 | N_("Generate shared library"), NULL); | |
912 | ||
364c7fa5 ILT |
913 | DEFINE_uint(split_stack_adjust_size, options::TWO_DASHES, '\0', 0x4000, |
914 | N_("Stack size when -fsplit-stack function calls non-split"), | |
915 | N_("SIZE")); | |
916 | ||
ee1fe73e ILT |
917 | // This is not actually special in any way, but I need to give it |
918 | // a non-standard accessor-function name because 'static' is a keyword. | |
919 | DEFINE_special(static, options::ONE_DASH, '\0', | |
a4d4b13f | 920 | N_("Do not link against shared libraries"), NULL); |
ee1fe73e | 921 | |
032ce4e9 ST |
922 | DEFINE_enum(icf, options::TWO_DASHES, '\0', "none", |
923 | N_("Identical Code Folding. " | |
21bb3914 ST |
924 | "\'--icf=safe\' Folds ctors, dtors and functions whose" |
925 | " pointers are definitely not taken."), | |
032ce4e9 ST |
926 | ("[none,all,safe]"), |
927 | {"none", "all", "safe"}); | |
ef15dade ST |
928 | |
929 | DEFINE_uint(icf_iterations, options::TWO_DASHES , '\0', 0, | |
930 | N_("Number of iterations of ICF (default 2)"), N_("COUNT")); | |
931 | ||
932 | DEFINE_bool(print_icf_sections, options::TWO_DASHES, '\0', false, | |
933 | N_("List folded identical sections on stderr"), | |
934 | N_("Do not list folded identical sections")); | |
935 | ||
48c187ce ST |
936 | DEFINE_set(keep_unique, options::TWO_DASHES, '\0', |
937 | N_("Do not fold this symbol during ICF"), N_("SYMBOL")); | |
938 | ||
6d03d481 | 939 | DEFINE_bool(gc_sections, options::TWO_DASHES, '\0', false, |
266d0a74 | 940 | N_("Remove unused sections"), |
6d03d481 | 941 | N_("Don't remove unused sections (default)")); |
266d0a74 | 942 | |
6d03d481 | 943 | DEFINE_bool(print_gc_sections, options::TWO_DASHES, '\0', false, |
266d0a74 | 944 | N_("List removed unused sections on stderr"), |
6d03d481 ST |
945 | N_("Do not list removed unused sections")); |
946 | ||
ee1fe73e | 947 | DEFINE_bool(stats, options::TWO_DASHES, '\0', false, |
a4d4b13f | 948 | N_("Print resource usage statistics"), NULL); |
ee1fe73e ILT |
949 | |
950 | DEFINE_string(sysroot, options::TWO_DASHES, '\0', "", | |
a4d4b13f | 951 | N_("Set target system root directory"), N_("DIR")); |
ee1fe73e | 952 | |
c5818ff1 CC |
953 | DEFINE_bool(trace, options::TWO_DASHES, 't', false, |
954 | N_("Print the name of each input file"), NULL); | |
955 | ||
ee1fe73e | 956 | DEFINE_special(script, options::TWO_DASHES, 'T', |
a4d4b13f | 957 | N_("Read linker script"), N_("FILE")); |
ee1fe73e ILT |
958 | |
959 | DEFINE_bool(threads, options::TWO_DASHES, '\0', false, | |
a4d4b13f ILT |
960 | N_("Run the linker multi-threaded"), |
961 | N_("Do not run the linker multi-threaded")); | |
ee1fe73e | 962 | DEFINE_uint(thread_count, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 963 | N_("Number of threads to use"), N_("COUNT")); |
ee1fe73e | 964 | DEFINE_uint(thread_count_initial, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 965 | N_("Number of threads to use in initial pass"), N_("COUNT")); |
ee1fe73e | 966 | DEFINE_uint(thread_count_middle, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 967 | N_("Number of threads to use in middle pass"), N_("COUNT")); |
ee1fe73e | 968 | DEFINE_uint(thread_count_final, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 969 | N_("Number of threads to use in final pass"), N_("COUNT")); |
ee1fe73e | 970 | |
fee2edb1 ILT |
971 | DEFINE_uint64(Tbss, options::ONE_DASH, '\0', -1U, |
972 | N_("Set the address of the bss segment"), N_("ADDRESS")); | |
973 | DEFINE_uint64(Tdata, options::ONE_DASH, '\0', -1U, | |
974 | N_("Set the address of the data segment"), N_("ADDRESS")); | |
975 | DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U, | |
976 | N_("Set the address of the text segment"), N_("ADDRESS")); | |
977 | ||
f3e9c5c5 ILT |
978 | DEFINE_set(undefined, options::TWO_DASHES, 'u', |
979 | N_("Create undefined reference to SYMBOL"), N_("SYMBOL")); | |
2b706932 | 980 | |
2285a610 ILT |
981 | DEFINE_bool(verbose, options::TWO_DASHES, '\0', false, |
982 | N_("Synonym for --debug=files"), NULL); | |
983 | ||
fee2edb1 ILT |
984 | DEFINE_special(version_script, options::TWO_DASHES, '\0', |
985 | N_("Read version script"), N_("FILE")); | |
986 | ||
1ae4d23b ILT |
987 | DEFINE_bool(warn_common, options::TWO_DASHES, '\0', false, |
988 | N_("Warn about duplicate common symbols"), | |
989 | N_("Do not warn about duplicate common symbols (default)")); | |
990 | ||
37a9ac43 ILT |
991 | DEFINE_bool(warn_constructors, options::TWO_DASHES, '\0', false, |
992 | N_("Ignored"), N_("Ignored")); | |
993 | ||
6eda8c29 ILT |
994 | DEFINE_bool(warn_multiple_gp, options::TWO_DASHES, '\0', false, |
995 | N_("Ignored"), NULL); | |
996 | ||
15f8229b ILT |
997 | DEFINE_bool(warn_search_mismatch, options::TWO_DASHES, '\0', true, |
998 | N_("Warn when skipping an incompatible library"), | |
999 | N_("Don't warn when skipping an incompatible library")); | |
1000 | ||
b9674e17 ILT |
1001 | DEFINE_bool(warn_shared_textrel, options::TWO_DASHES, '\0', false, |
1002 | N_("Warn if text segment is not shareable"), | |
1003 | N_("Do not warn if text segment is not shareable (default)")); | |
1004 | ||
dc3f80fe ILT |
1005 | DEFINE_bool(warn_unresolved_symbols, options::TWO_DASHES, '\0', false, |
1006 | N_("Report unresolved symbols as warnings"), | |
1007 | NULL); | |
1008 | DEFINE_bool_alias(error_unresolved_symbols, warn_unresolved_symbols, | |
1009 | options::TWO_DASHES, '\0', | |
1010 | N_("Report unresolved symbols as errors"), | |
1011 | NULL, true); | |
1012 | ||
ee1fe73e | 1013 | DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
1014 | N_("Include all archive contents"), |
1015 | N_("Include only needed archive contents")); | |
ee1fe73e | 1016 | |
c5818ff1 CC |
1017 | DEFINE_set(wrap, options::TWO_DASHES, '\0', |
1018 | N_("Use wrapper functions for SYMBOL"), N_("SYMBOL")); | |
1019 | ||
1020 | DEFINE_set(trace_symbol, options::TWO_DASHES, 'y', | |
1021 | N_("Trace references to symbol"), N_("SYMBOL")); | |
0864d551 | 1022 | |
62dfdd4d ILT |
1023 | DEFINE_bool(undefined_version, options::TWO_DASHES, '\0', true, |
1024 | N_("Allow unused version in script (default)"), | |
1025 | N_("Do not allow unused version in script")); | |
1026 | ||
706e1f5e ILT |
1027 | DEFINE_string(Y, options::EXACTLY_ONE_DASH, 'Y', "", |
1028 | N_("Default search path for Solaris compatibility"), | |
1029 | N_("PATH")); | |
1030 | ||
ee1fe73e | 1031 | DEFINE_special(start_group, options::TWO_DASHES, '(', |
a4d4b13f | 1032 | N_("Start a library search group"), NULL); |
ee1fe73e | 1033 | DEFINE_special(end_group, options::TWO_DASHES, ')', |
a4d4b13f | 1034 | N_("End a library search group"), NULL); |
ee1fe73e | 1035 | |
fee2edb1 | 1036 | // The -z options. |
ee1fe73e | 1037 | |
d98bc257 ILT |
1038 | DEFINE_bool(combreloc, options::DASH_Z, '\0', true, |
1039 | N_("Sort dynamic relocs"), | |
1040 | N_("Do not sort dynamic relocs")); | |
fee2edb1 ILT |
1041 | DEFINE_uint64(common_page_size, options::DASH_Z, '\0', 0, |
1042 | N_("Set common page size to SIZE"), N_("SIZE")); | |
eb42429a ILT |
1043 | DEFINE_bool(defs, options::DASH_Z, '\0', false, |
1044 | N_("Report undefined symbols (even with --shared)"), | |
1045 | NULL); | |
ee1fe73e | 1046 | DEFINE_bool(execstack, options::DASH_Z, '\0', false, |
a4d4b13f | 1047 | N_("Mark output as requiring executable stack"), NULL); |
7c414435 DM |
1048 | DEFINE_bool(initfirst, options::DASH_Z, '\0', false, |
1049 | N_("Mark DSO to be initialized first at runtime"), | |
1050 | NULL); | |
1051 | DEFINE_bool(interpose, options::DASH_Z, '\0', false, | |
1052 | N_("Mark object to interpose all DSOs but executable"), | |
1053 | NULL); | |
e1c74d60 ILT |
1054 | DEFINE_bool(lazy, options::DASH_Z, '\0', false, |
1055 | N_("Mark object for lazy runtime binding (default)"), | |
1056 | NULL); | |
7c414435 DM |
1057 | DEFINE_bool(loadfltr, options::DASH_Z, '\0', false, |
1058 | N_("Mark object requiring immediate process"), | |
1059 | NULL); | |
e1c74d60 ILT |
1060 | DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0, |
1061 | N_("Set maximum page size to SIZE"), N_("SIZE")); | |
30bc8c46 ILT |
1062 | DEFINE_bool(muldefs, options::DASH_Z, '\0', false, |
1063 | N_("Allow multiple definitions of symbols"), | |
1064 | NULL); | |
1065 | // copyreloc is here in the list because there is only -z | |
1066 | // nocopyreloc, not -z copyreloc. | |
966d4097 DK |
1067 | DEFINE_bool(copyreloc, options::DASH_Z, '\0', true, |
1068 | NULL, | |
1069 | N_("Do not create copy relocs")); | |
7c414435 DM |
1070 | DEFINE_bool(nodefaultlib, options::DASH_Z, '\0', false, |
1071 | N_("Mark object not to use default search paths"), | |
1072 | NULL); | |
1073 | DEFINE_bool(nodelete, options::DASH_Z, '\0', false, | |
1074 | N_("Mark DSO non-deletable at runtime"), | |
1075 | NULL); | |
1076 | DEFINE_bool(nodlopen, options::DASH_Z, '\0', false, | |
1077 | N_("Mark DSO not available to dlopen"), | |
1078 | NULL); | |
1079 | DEFINE_bool(nodump, options::DASH_Z, '\0', false, | |
1080 | N_("Mark DSO not available to dldump"), | |
1081 | NULL); | |
e1c74d60 ILT |
1082 | DEFINE_bool(noexecstack, options::DASH_Z, '\0', false, |
1083 | N_("Mark output as not requiring executable stack"), NULL); | |
1084 | DEFINE_bool(now, options::DASH_Z, '\0', false, | |
1085 | N_("Mark object for immediate function binding"), | |
1086 | NULL); | |
7be8330a CD |
1087 | DEFINE_bool(origin, options::DASH_Z, '\0', false, |
1088 | N_("Mark DSO to indicate that needs immediate $ORIGIN " | |
1089 | "processing at runtime"), NULL); | |
e1c74d60 ILT |
1090 | DEFINE_bool(relro, options::DASH_Z, '\0', false, |
1091 | N_("Where possible mark variables read-only after relocation"), | |
1092 | N_("Don't mark variables read-only after relocation")); | |
ffeef7df ILT |
1093 | DEFINE_bool(text, options::DASH_Z, '\0', false, |
1094 | N_("Do not permit relocations in read-only segments"), | |
1095 | NULL); | |
1096 | DEFINE_bool_alias(textoff, text, options::DASH_Z, '\0', | |
1097 | N_("Permit relocations in read-only segments (default)"), | |
1098 | NULL, true); | |
bae7f79e | 1099 | |
ee1fe73e ILT |
1100 | public: |
1101 | typedef options::Dir_list Dir_list; | |
ca3a67a5 | 1102 | |
ee1fe73e | 1103 | General_options(); |
61ba1cf9 | 1104 | |
ee1fe73e ILT |
1105 | // Does post-processing on flags, making sure they all have |
1106 | // non-conflicting values. Also converts some flags from their | |
1107 | // "standard" types (string, etc), to another type (enum, DirList), | |
1108 | // which can be accessed via a separate method. Dies if it notices | |
1109 | // any problems. | |
1110 | void finalize(); | |
516cb3d0 | 1111 | |
459c9f1c ILT |
1112 | // True if we printed the version information. |
1113 | bool | |
1114 | printed_version() const | |
1115 | { return this->printed_version_; } | |
1116 | ||
ee1fe73e ILT |
1117 | // The macro defines output() (based on --output), but that's a |
1118 | // generic name. Provide this alternative name, which is clearer. | |
8851ecca | 1119 | const char* |
ee1fe73e ILT |
1120 | output_file_name() const |
1121 | { return this->output(); } | |
92e059d8 | 1122 | |
8851ecca ILT |
1123 | // This is not defined via a flag, but combines flags to say whether |
1124 | // the output is position-independent or not. | |
1125 | bool | |
1126 | output_is_position_independent() const | |
374ad285 | 1127 | { return this->shared() || this->pie(); } |
8851ecca | 1128 | |
183fd0e3 AO |
1129 | // Return true if the output is something that can be exec()ed, such |
1130 | // as a static executable, or a position-dependent or | |
1131 | // position-independent executable, but not a dynamic library or an | |
1132 | // object file. | |
1133 | bool | |
1134 | output_is_executable() const | |
374ad285 | 1135 | { return !this->shared() && !this->relocatable(); } |
183fd0e3 | 1136 | |
ee1fe73e ILT |
1137 | // This would normally be static(), and defined automatically, but |
1138 | // since static is a keyword, we need to come up with our own name. | |
bae7f79e ILT |
1139 | bool |
1140 | is_static() const | |
ee1fe73e | 1141 | { return static_; } |
756ac4a8 | 1142 | |
ee1fe73e ILT |
1143 | // In addition to getting the input and output formats as a string |
1144 | // (via format() and oformat()), we also give access as an enum. | |
1145 | enum Object_format | |
1146 | { | |
1147 | // Ordinary ELF. | |
1148 | OBJECT_FORMAT_ELF, | |
1149 | // Straight binary format. | |
1150 | OBJECT_FORMAT_BINARY | |
1151 | }; | |
fe9a4c12 | 1152 | |
e6a307ba ILT |
1153 | // Convert a string to an Object_format. Gives an error if the |
1154 | // string is not recognized. | |
1155 | static Object_format | |
1156 | string_to_object_format(const char* arg); | |
1157 | ||
ee1fe73e ILT |
1158 | // Note: these functions are not very fast. |
1159 | Object_format format_enum() const; | |
1160 | Object_format oformat_enum() const; | |
fe9a4c12 | 1161 | |
fd9d194f ILT |
1162 | // Return whether FILENAME is in a system directory. |
1163 | bool | |
1164 | is_in_system_directory(const std::string& name) const; | |
1165 | ||
8c604651 CS |
1166 | // RETURN whether SYMBOL_NAME should be kept, according to symbols_to_retain_. |
1167 | bool | |
1168 | should_retain_symbol(const char* symbol_name) const | |
1169 | { | |
1170 | if (symbols_to_retain_.empty()) // means flag wasn't specified | |
1171 | return true; | |
1172 | return symbols_to_retain_.find(symbol_name) != symbols_to_retain_.end(); | |
1173 | } | |
1174 | ||
ee1fe73e ILT |
1175 | // These are the best way to get access to the execstack state, |
1176 | // not execstack() and noexecstack() which are hard to use properly. | |
35cdfc9a ILT |
1177 | bool |
1178 | is_execstack_set() const | |
ee1fe73e | 1179 | { return this->execstack_status_ != EXECSTACK_FROM_INPUT; } |
35cdfc9a ILT |
1180 | |
1181 | bool | |
1182 | is_stack_executable() const | |
ee1fe73e | 1183 | { return this->execstack_status_ == EXECSTACK_YES; } |
c7912668 | 1184 | |
032ce4e9 ST |
1185 | bool |
1186 | icf_enabled() const | |
1187 | { return this->icf_status_ != ICF_NONE; } | |
1188 | ||
1189 | bool | |
1190 | icf_safe_folding() const | |
1191 | { return this->icf_status_ == ICF_SAFE; } | |
1192 | ||
086a1841 ILT |
1193 | // The --demangle option takes an optional string, and there is also |
1194 | // a --no-demangle option. This is the best way to decide whether | |
1195 | // to demangle or not. | |
1196 | bool | |
1197 | do_demangle() const | |
1198 | { return this->do_demangle_; } | |
1199 | ||
89fc3421 CC |
1200 | // Returns TRUE if any plugin libraries have been loaded. |
1201 | bool | |
1202 | has_plugins() const | |
1203 | { return this->plugins_ != NULL; } | |
1204 | ||
1205 | // Return a pointer to the plugin manager. | |
1206 | Plugin_manager* | |
1207 | plugins() const | |
1208 | { return this->plugins_; } | |
1209 | ||
c82fbeee CS |
1210 | // True iff SYMBOL was found in the file specified by dynamic-list. |
1211 | bool | |
1212 | in_dynamic_list(const char* symbol) const | |
1213 | { return this->dynamic_list_.version_script_info()->symbol_is_local(symbol); } | |
1214 | ||
6affe781 ILT |
1215 | // Finalize the dynamic list. |
1216 | void | |
1217 | finalize_dynamic_list() | |
1218 | { this->dynamic_list_.version_script_info()->finalize(); } | |
1219 | ||
266d0a74 ILT |
1220 | // The disposition given by the --incremental-changed, |
1221 | // --incremental-unchanged or --incremental-unknown option. The | |
1222 | // value may change as we proceed parsing the command line flags. | |
1223 | Incremental_disposition | |
1224 | incremental_disposition() const | |
1225 | { return this->incremental_disposition_; } | |
1226 | ||
65514900 CC |
1227 | // Return true if S is the name of a library excluded from automatic |
1228 | // symbol export. | |
1229 | bool | |
1230 | check_excluded_libs (const std::string &s) const; | |
1231 | ||
a192ba05 ILT |
1232 | // If an explicit start address was given for section SECNAME with |
1233 | // the --section-start option, return true and set *PADDR to the | |
1234 | // address. Otherwise return false. | |
1235 | bool | |
1236 | section_start(const char* secname, uint64_t* paddr) const; | |
1237 | ||
9b2fd367 DK |
1238 | enum Fix_v4bx |
1239 | { | |
1240 | // Leave original instruction. | |
1241 | FIX_V4BX_NONE, | |
1242 | // Replace instruction. | |
1243 | FIX_V4BX_REPLACE, | |
1244 | // Generate an interworking veneer. | |
1245 | FIX_V4BX_INTERWORKING | |
1246 | }; | |
1247 | ||
1248 | Fix_v4bx | |
1249 | fix_v4bx() const | |
1250 | { return (this->fix_v4bx_); } | |
1251 | ||
bae7f79e | 1252 | private: |
dbe717ef ILT |
1253 | // Don't copy this structure. |
1254 | General_options(const General_options&); | |
1255 | General_options& operator=(const General_options&); | |
1256 | ||
35cdfc9a ILT |
1257 | // Whether to mark the stack as executable. |
1258 | enum Execstack | |
1259 | { | |
1260 | // Not set on command line. | |
1261 | EXECSTACK_FROM_INPUT, | |
ee1fe73e | 1262 | // Mark the stack as executable (-z execstack). |
35cdfc9a | 1263 | EXECSTACK_YES, |
ee1fe73e | 1264 | // Mark the stack as not executable (-z noexecstack). |
35cdfc9a ILT |
1265 | EXECSTACK_NO |
1266 | }; | |
1267 | ||
032ce4e9 ST |
1268 | enum Icf_status |
1269 | { | |
1270 | // Do not fold any functions (Default or --icf=none). | |
1271 | ICF_NONE, | |
1272 | // All functions are candidates for folding. (--icf=all). | |
1273 | ICF_ALL, | |
1274 | // Only ctors and dtors are candidates for folding. (--icf=safe). | |
1275 | ICF_SAFE | |
1276 | }; | |
1277 | ||
1278 | void | |
1279 | set_icf_status(Icf_status value) | |
1280 | { this->icf_status_ = value; } | |
1281 | ||
92e059d8 | 1282 | void |
ee1fe73e | 1283 | set_execstack_status(Execstack value) |
086a1841 ILT |
1284 | { this->execstack_status_ = value; } |
1285 | ||
1286 | void | |
1287 | set_do_demangle(bool value) | |
1288 | { this->do_demangle_ = value; } | |
92e059d8 | 1289 | |
bae7f79e | 1290 | void |
45aa233b | 1291 | set_static(bool value) |
ee1fe73e | 1292 | { static_ = value; } |
652ec9bd | 1293 | |
ee1fe73e | 1294 | // These are called by finalize() to set up the search-path correctly. |
35cdfc9a | 1295 | void |
ee1fe73e ILT |
1296 | add_to_library_path_with_sysroot(const char* arg) |
1297 | { this->add_search_directory_to_library_path(Search_directory(arg, true)); } | |
c7912668 | 1298 | |
ad2d6943 ILT |
1299 | // Apply any sysroot to the directory lists. |
1300 | void | |
1301 | add_sysroot(); | |
086a1841 | 1302 | |
89fc3421 CC |
1303 | // Add a plugin and its arguments to the list of plugins. |
1304 | void | |
4674ecfc CC |
1305 | add_plugin(const char *filename); |
1306 | ||
1307 | // Add a plugin option. | |
1308 | void | |
1309 | add_plugin_option(const char* opt); | |
89fc3421 | 1310 | |
459c9f1c ILT |
1311 | // Whether we printed version information. |
1312 | bool printed_version_; | |
086a1841 ILT |
1313 | // Whether to mark the stack as executable. |
1314 | Execstack execstack_status_; | |
032ce4e9 ST |
1315 | // Whether to do code folding. |
1316 | Icf_status icf_status_; | |
086a1841 ILT |
1317 | // Whether to do a static link. |
1318 | bool static_; | |
1319 | // Whether to do demangling. | |
1320 | bool do_demangle_; | |
89fc3421 CC |
1321 | // List of plugin libraries. |
1322 | Plugin_manager* plugins_; | |
c82fbeee CS |
1323 | // The parsed output of --dynamic-list files. For convenience in |
1324 | // script.cc, we store this as a Script_options object, even though | |
1325 | // we only use a single Version_tree from it. | |
1326 | Script_options dynamic_list_; | |
266d0a74 ILT |
1327 | // The disposition given by the --incremental-changed, |
1328 | // --incremental-unchanged or --incremental-unknown option. The | |
1329 | // value may change as we proceed parsing the command line flags. | |
1330 | Incremental_disposition incremental_disposition_; | |
459c9f1c | 1331 | // Whether we have seen one of the options that require incremental |
266d0a74 ILT |
1332 | // build (--incremental-changed, --incremental-unchanged or |
1333 | // --incremental-unknown) | |
1334 | bool implicit_incremental_; | |
8c604651 | 1335 | // Libraries excluded from automatic export, via --exclude-libs. |
65514900 | 1336 | Unordered_set<std::string> excluded_libs_; |
8c604651 CS |
1337 | // List of symbol-names to keep, via -retain-symbol-info. |
1338 | Unordered_set<std::string> symbols_to_retain_; | |
a192ba05 ILT |
1339 | // Map from section name to address from --section-start. |
1340 | std::map<std::string, uint64_t> section_starts_; | |
9b2fd367 DK |
1341 | // Whether to process armv4 bx instruction relocation. |
1342 | Fix_v4bx fix_v4bx_; | |
bae7f79e ILT |
1343 | }; |
1344 | ||
ee1fe73e ILT |
1345 | // The position-dependent options. We use this to store the state of |
1346 | // the commandline at a particular point in parsing for later | |
1347 | // reference. For instance, if we see "ld --whole-archive foo.a | |
1348 | // --no-whole-archive," we want to store the whole-archive option with | |
1349 | // foo.a, so when the time comes to parse foo.a we know we should do | |
1350 | // it in whole-archive mode. We could store all of General_options, | |
1351 | // but that's big, so we just pick the subset of flags that actually | |
1352 | // change in a position-dependent way. | |
1353 | ||
1354 | #define DEFINE_posdep(varname__, type__) \ | |
1355 | public: \ | |
1356 | type__ \ | |
1357 | varname__() const \ | |
1358 | { return this->varname__##_; } \ | |
1359 | \ | |
1360 | void \ | |
1361 | set_##varname__(type__ value) \ | |
1362 | { this->varname__##_ = value; } \ | |
1363 | private: \ | |
1364 | type__ varname__##_ | |
bae7f79e ILT |
1365 | |
1366 | class Position_dependent_options | |
1367 | { | |
1368 | public: | |
ee1fe73e ILT |
1369 | Position_dependent_options(const General_options& options |
1370 | = Position_dependent_options::default_options_) | |
1371 | { copy_from_options(options); } | |
bae7f79e | 1372 | |
ee1fe73e ILT |
1373 | void copy_from_options(const General_options& options) |
1374 | { | |
1375 | this->set_as_needed(options.as_needed()); | |
1376 | this->set_Bdynamic(options.Bdynamic()); | |
1377 | this->set_format_enum(options.format_enum()); | |
1378 | this->set_whole_archive(options.whole_archive()); | |
266d0a74 | 1379 | this->set_incremental_disposition(options.incremental_disposition()); |
ee1fe73e | 1380 | } |
bc644c6c | 1381 | |
ee1fe73e ILT |
1382 | DEFINE_posdep(as_needed, bool); |
1383 | DEFINE_posdep(Bdynamic, bool); | |
1384 | DEFINE_posdep(format_enum, General_options::Object_format); | |
1385 | DEFINE_posdep(whole_archive, bool); | |
266d0a74 | 1386 | DEFINE_posdep(incremental_disposition, Incremental_disposition); |
7cc619c3 | 1387 | |
dbe717ef | 1388 | private: |
ee1fe73e ILT |
1389 | // This is a General_options with everything set to its default |
1390 | // value. A Position_dependent_options created with no argument | |
1391 | // will take its values from here. | |
1392 | static General_options default_options_; | |
bae7f79e ILT |
1393 | }; |
1394 | ||
ee1fe73e | 1395 | |
bae7f79e ILT |
1396 | // A single file or library argument from the command line. |
1397 | ||
ead1e424 | 1398 | class Input_file_argument |
bae7f79e ILT |
1399 | { |
1400 | public: | |
ae3b5189 CD |
1401 | enum Input_file_type |
1402 | { | |
1403 | // A regular file, name used as-is, not searched. | |
1404 | INPUT_FILE_TYPE_FILE, | |
1405 | // A library name. When used, "lib" will be prepended and ".so" or | |
1406 | // ".a" appended to make a filename, and that filename will be searched | |
1407 | // for using the -L paths. | |
1408 | INPUT_FILE_TYPE_LIBRARY, | |
1409 | // A regular file, name used as-is, but searched using the -L paths. | |
1410 | INPUT_FILE_TYPE_SEARCHED_FILE | |
1411 | }; | |
1412 | ||
51dee2fe | 1413 | // name: file name or library name |
ae3b5189 | 1414 | // type: the type of this input file. |
51dee2fe ILT |
1415 | // extra_search_path: an extra directory to look for the file, prior |
1416 | // to checking the normal library search path. If this is "", | |
1417 | // then no extra directory is added. | |
88dd47ac | 1418 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 1419 | // options: The position dependent options at this point in the |
ad2d6943 | 1420 | // command line, such as --whole-archive. |
ead1e424 | 1421 | Input_file_argument() |
ae3b5189 CD |
1422 | : name_(), type_(INPUT_FILE_TYPE_FILE), extra_search_path_(""), |
1423 | just_symbols_(false), options_() | |
ead1e424 ILT |
1424 | { } |
1425 | ||
2ea97941 ILT |
1426 | Input_file_argument(const char* name, Input_file_type type, |
1427 | const char* extra_search_path, | |
1428 | bool just_symbols, | |
1429 | const Position_dependent_options& options) | |
1430 | : name_(name), type_(type), extra_search_path_(extra_search_path), | |
1431 | just_symbols_(just_symbols), options_(options) | |
ee1fe73e ILT |
1432 | { } |
1433 | ||
1434 | // You can also pass in a General_options instance instead of a | |
1435 | // Position_dependent_options. In that case, we extract the | |
1436 | // position-independent vars from the General_options and only store | |
1437 | // those. | |
2ea97941 ILT |
1438 | Input_file_argument(const char* name, Input_file_type type, |
1439 | const char* extra_search_path, | |
1440 | bool just_symbols, | |
1441 | const General_options& options) | |
1442 | : name_(name), type_(type), extra_search_path_(extra_search_path), | |
1443 | just_symbols_(just_symbols), options_(options) | |
bae7f79e ILT |
1444 | { } |
1445 | ||
1446 | const char* | |
1447 | name() const | |
dbe717ef | 1448 | { return this->name_.c_str(); } |
bae7f79e ILT |
1449 | |
1450 | const Position_dependent_options& | |
1451 | options() const | |
1452 | { return this->options_; } | |
1453 | ||
1454 | bool | |
1455 | is_lib() const | |
ae3b5189 CD |
1456 | { return type_ == INPUT_FILE_TYPE_LIBRARY; } |
1457 | ||
1458 | bool | |
1459 | is_searched_file() const | |
1460 | { return type_ == INPUT_FILE_TYPE_SEARCHED_FILE; } | |
bae7f79e | 1461 | |
51dee2fe ILT |
1462 | const char* |
1463 | extra_search_path() const | |
1464 | { | |
1465 | return (this->extra_search_path_.empty() | |
1466 | ? NULL | |
ee1fe73e | 1467 | : this->extra_search_path_.c_str()); |
51dee2fe ILT |
1468 | } |
1469 | ||
88dd47ac ILT |
1470 | // Return whether we should only read symbols from this file. |
1471 | bool | |
1472 | just_symbols() const | |
1473 | { return this->just_symbols_; } | |
1474 | ||
51dee2fe ILT |
1475 | // Return whether this file may require a search using the -L |
1476 | // options. | |
1477 | bool | |
1478 | may_need_search() const | |
ae3b5189 CD |
1479 | { |
1480 | return (this->is_lib() | |
1481 | || this->is_searched_file() | |
1482 | || !this->extra_search_path_.empty()); | |
1483 | } | |
51dee2fe | 1484 | |
bae7f79e | 1485 | private: |
dbe717ef ILT |
1486 | // We use std::string, not const char*, here for convenience when |
1487 | // using script files, so that we do not have to preserve the string | |
1488 | // in that case. | |
1489 | std::string name_; | |
ae3b5189 | 1490 | Input_file_type type_; |
51dee2fe | 1491 | std::string extra_search_path_; |
88dd47ac | 1492 | bool just_symbols_; |
bae7f79e ILT |
1493 | Position_dependent_options options_; |
1494 | }; | |
1495 | ||
ead1e424 ILT |
1496 | // A file or library, or a group, from the command line. |
1497 | ||
1498 | class Input_argument | |
1499 | { | |
1500 | public: | |
1501 | // Create a file or library argument. | |
2ea97941 ILT |
1502 | explicit Input_argument(Input_file_argument file) |
1503 | : is_file_(true), file_(file), group_(NULL) | |
ead1e424 ILT |
1504 | { } |
1505 | ||
1506 | // Create a group argument. | |
2ea97941 ILT |
1507 | explicit Input_argument(Input_file_group* group) |
1508 | : is_file_(false), group_(group) | |
ead1e424 ILT |
1509 | { } |
1510 | ||
1511 | // Return whether this is a file. | |
1512 | bool | |
1513 | is_file() const | |
1514 | { return this->is_file_; } | |
1515 | ||
1516 | // Return whether this is a group. | |
1517 | bool | |
1518 | is_group() const | |
1519 | { return !this->is_file_; } | |
1520 | ||
1521 | // Return the information about the file. | |
1522 | const Input_file_argument& | |
1523 | file() const | |
1524 | { | |
a3ad94ed | 1525 | gold_assert(this->is_file_); |
ead1e424 ILT |
1526 | return this->file_; |
1527 | } | |
1528 | ||
1529 | // Return the information about the group. | |
1530 | const Input_file_group* | |
1531 | group() const | |
1532 | { | |
a3ad94ed | 1533 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1534 | return this->group_; |
1535 | } | |
1536 | ||
1537 | Input_file_group* | |
1538 | group() | |
1539 | { | |
a3ad94ed | 1540 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1541 | return this->group_; |
1542 | } | |
1543 | ||
1544 | private: | |
1545 | bool is_file_; | |
1546 | Input_file_argument file_; | |
1547 | Input_file_group* group_; | |
1548 | }; | |
1549 | ||
072fe7ce ILT |
1550 | typedef std::vector<Input_argument> Input_argument_list; |
1551 | ||
ead1e424 ILT |
1552 | // A group from the command line. This is a set of arguments within |
1553 | // --start-group ... --end-group. | |
1554 | ||
1555 | class Input_file_group | |
92e059d8 | 1556 | { |
ead1e424 | 1557 | public: |
072fe7ce | 1558 | typedef Input_argument_list::const_iterator const_iterator; |
ead1e424 ILT |
1559 | |
1560 | Input_file_group() | |
1561 | : files_() | |
1562 | { } | |
1563 | ||
1564 | // Add a file to the end of the group. | |
1565 | void | |
1566 | add_file(const Input_file_argument& arg) | |
1567 | { this->files_.push_back(Input_argument(arg)); } | |
1568 | ||
1569 | // Iterators to iterate over the group contents. | |
1570 | ||
1571 | const_iterator | |
1572 | begin() const | |
1573 | { return this->files_.begin(); } | |
1574 | ||
1575 | const_iterator | |
1576 | end() const | |
1577 | { return this->files_.end(); } | |
1578 | ||
1579 | private: | |
072fe7ce | 1580 | Input_argument_list files_; |
92e059d8 ILT |
1581 | }; |
1582 | ||
dbe717ef ILT |
1583 | // A list of files from the command line or a script. |
1584 | ||
1585 | class Input_arguments | |
1586 | { | |
1587 | public: | |
dbe717ef ILT |
1588 | typedef Input_argument_list::const_iterator const_iterator; |
1589 | ||
1590 | Input_arguments() | |
1591 | : input_argument_list_(), in_group_(false) | |
1592 | { } | |
1593 | ||
1594 | // Add a file. | |
1595 | void | |
1596 | add_file(const Input_file_argument& arg); | |
1597 | ||
1598 | // Start a group (the --start-group option). | |
1599 | void | |
1600 | start_group(); | |
1601 | ||
1602 | // End a group (the --end-group option). | |
1603 | void | |
1604 | end_group(); | |
1605 | ||
1606 | // Return whether we are currently in a group. | |
1607 | bool | |
1608 | in_group() const | |
1609 | { return this->in_group_; } | |
1610 | ||
fe9a4c12 ILT |
1611 | // The number of entries in the list. |
1612 | int | |
1613 | size() const | |
1614 | { return this->input_argument_list_.size(); } | |
1615 | ||
dbe717ef ILT |
1616 | // Iterators to iterate over the list of input files. |
1617 | ||
1618 | const_iterator | |
1619 | begin() const | |
1620 | { return this->input_argument_list_.begin(); } | |
1621 | ||
1622 | const_iterator | |
1623 | end() const | |
1624 | { return this->input_argument_list_.end(); } | |
1625 | ||
1626 | // Return whether the list is empty. | |
1627 | bool | |
1628 | empty() const | |
1629 | { return this->input_argument_list_.empty(); } | |
1630 | ||
1631 | private: | |
1632 | Input_argument_list input_argument_list_; | |
1633 | bool in_group_; | |
1634 | }; | |
1635 | ||
ee1fe73e ILT |
1636 | |
1637 | // All the information read from the command line. These are held in | |
1638 | // three separate structs: one to hold the options (--foo), one to | |
1639 | // hold the filenames listed on the commandline, and one to hold | |
1640 | // linker script information. This third is not a subset of the other | |
1641 | // two because linker scripts can be specified either as options (via | |
1642 | // -T) or as a file. | |
bae7f79e ILT |
1643 | |
1644 | class Command_line | |
1645 | { | |
1646 | public: | |
ead1e424 ILT |
1647 | typedef Input_arguments::const_iterator const_iterator; |
1648 | ||
a5dc0706 | 1649 | Command_line(); |
bae7f79e ILT |
1650 | |
1651 | // Process the command line options. This will exit with an | |
1652 | // appropriate error message if an unrecognized option is seen. | |
1653 | void | |
ee1fe73e | 1654 | process(int argc, const char** argv); |
bae7f79e | 1655 | |
a0451b38 | 1656 | // Process one command-line option. This takes the index of argv to |
ee1fe73e ILT |
1657 | // process, and returns the index for the next option. no_more_options |
1658 | // is set to true if argv[i] is "--". | |
61ba1cf9 | 1659 | int |
ee1fe73e ILT |
1660 | process_one_option(int argc, const char** argv, int i, |
1661 | bool* no_more_options); | |
3c2fafa5 | 1662 | |
61ba1cf9 | 1663 | // Get the general options. |
bae7f79e ILT |
1664 | const General_options& |
1665 | options() const | |
1666 | { return this->options_; } | |
1667 | ||
3c2fafa5 ILT |
1668 | // Get the position dependent options. |
1669 | const Position_dependent_options& | |
1670 | position_dependent_options() const | |
1671 | { return this->position_options_; } | |
1672 | ||
a5dc0706 ILT |
1673 | // Get the linker-script options. |
1674 | Script_options& | |
e5756efb | 1675 | script_options() |
a5dc0706 | 1676 | { return this->script_options_; } |
e5756efb | 1677 | |
6affe781 | 1678 | // Finalize the version-script options and return them. |
a5dc0706 | 1679 | const Version_script_info& |
6affe781 | 1680 | version_script(); |
e5756efb | 1681 | |
ee1fe73e ILT |
1682 | // Get the input files. |
1683 | Input_arguments& | |
1684 | inputs() | |
1685 | { return this->inputs_; } | |
1686 | ||
fe9a4c12 ILT |
1687 | // The number of input files. |
1688 | int | |
1689 | number_of_input_files() const | |
1690 | { return this->inputs_.size(); } | |
1691 | ||
ead1e424 ILT |
1692 | // Iterators to iterate over the list of input files. |
1693 | ||
1694 | const_iterator | |
1695 | begin() const | |
1696 | { return this->inputs_.begin(); } | |
1697 | ||
1698 | const_iterator | |
1699 | end() const | |
1700 | { return this->inputs_.end(); } | |
bae7f79e ILT |
1701 | |
1702 | private: | |
ead1e424 ILT |
1703 | Command_line(const Command_line&); |
1704 | Command_line& operator=(const Command_line&); | |
1705 | ||
293c1386 CC |
1706 | // This is a dummy class to provide a constructor that runs before |
1707 | // the constructor for the General_options. The Pre_options constructor | |
1708 | // is used as a hook to set the flag enabling the options to register | |
1709 | // themselves. | |
1710 | struct Pre_options { | |
1711 | Pre_options(); | |
1712 | }; | |
1713 | ||
1714 | // This must come before options_! | |
1715 | Pre_options pre_options_; | |
bae7f79e ILT |
1716 | General_options options_; |
1717 | Position_dependent_options position_options_; | |
a5dc0706 | 1718 | Script_options script_options_; |
ead1e424 | 1719 | Input_arguments inputs_; |
bae7f79e ILT |
1720 | }; |
1721 | ||
1722 | } // End namespace gold. | |
1723 | ||
1724 | #endif // !defined(GOLD_OPTIONS_H) |