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bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
5393d741 | 3 | // Copyright 2006, 2007, 2008, 2009, 2010, 2011 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; |
b0193076 | 56 | class Input_file_lib; |
3c2fafa5 | 57 | class Position_dependent_options; |
0daa6f62 | 58 | class Target; |
89fc3421 | 59 | class Plugin_manager; |
cdc29364 | 60 | class Script_info; |
bae7f79e | 61 | |
266d0a74 ILT |
62 | // Incremental build action for a specific file, as selected by the user. |
63 | ||
64 | enum Incremental_disposition | |
65 | { | |
221597a5 CC |
66 | // Startup files that appear before the first disposition option. |
67 | // These will default to INCREMENTAL_CHECK unless the | |
68 | // --incremental-startup-unchanged option is given. | |
69 | // (For files added implicitly by gcc before any user options.) | |
70 | INCREMENTAL_STARTUP, | |
266d0a74 ILT |
71 | // Determine the status from the timestamp (default). |
72 | INCREMENTAL_CHECK, | |
73 | // Assume the file changed from the previous build. | |
74 | INCREMENTAL_CHANGED, | |
75 | // Assume the file didn't change from the previous build. | |
76 | INCREMENTAL_UNCHANGED | |
77 | }; | |
78 | ||
ee1fe73e ILT |
79 | // The nested namespace is to contain all the global variables and |
80 | // structs that need to be defined in the .h file, but do not need to | |
81 | // be used outside this class. | |
c7912668 ILT |
82 | namespace options |
83 | { | |
ee1fe73e | 84 | typedef std::vector<Search_directory> Dir_list; |
c5818ff1 | 85 | typedef Unordered_set<std::string> String_set; |
ee1fe73e ILT |
86 | |
87 | // These routines convert from a string option to various types. | |
88 | // Each gives a fatal error if it cannot parse the argument. | |
89 | ||
90 | extern void | |
91 | parse_bool(const char* option_name, const char* arg, bool* retval); | |
92 | ||
c0a62865 DK |
93 | extern void |
94 | parse_int(const char* option_name, const char* arg, int* retval); | |
95 | ||
ee1fe73e ILT |
96 | extern void |
97 | parse_uint(const char* option_name, const char* arg, int* retval); | |
98 | ||
99 | extern void | |
c18476e7 ILT |
100 | parse_uint64(const char* option_name, const char* arg, uint64_t* retval); |
101 | ||
102 | extern void | |
103 | parse_double(const char* option_name, const char* arg, double* retval); | |
ee1fe73e | 104 | |
9fbd3822 CC |
105 | extern void |
106 | parse_percent(const char* option_name, const char* arg, double* retval); | |
107 | ||
ee1fe73e ILT |
108 | extern void |
109 | parse_string(const char* option_name, const char* arg, const char** retval); | |
110 | ||
086a1841 ILT |
111 | extern void |
112 | parse_optional_string(const char* option_name, const char* arg, | |
113 | const char** retval); | |
114 | ||
ee1fe73e ILT |
115 | extern void |
116 | parse_dirlist(const char* option_name, const char* arg, Dir_list* retval); | |
117 | ||
c5818ff1 CC |
118 | extern void |
119 | parse_set(const char* option_name, const char* arg, String_set* retval); | |
120 | ||
ee1fe73e ILT |
121 | extern void |
122 | parse_choices(const char* option_name, const char* arg, const char** retval, | |
123 | const char* choices[], int num_choices); | |
124 | ||
125 | struct Struct_var; | |
126 | ||
127 | // Most options have both a shortname (one letter) and a longname. | |
128 | // This enum controls how many dashes are expected for longname access | |
129 | // -- shortnames always use one dash. Most longnames will accept | |
130 | // either one dash or two; the only difference between ONE_DASH and | |
131 | // TWO_DASHES is how we print the option in --help. However, some | |
132 | // longnames require two dashes, and some require only one. The | |
133 | // special value DASH_Z means that the option is preceded by "-z". | |
134 | enum Dashes | |
135 | { | |
136 | ONE_DASH, TWO_DASHES, EXACTLY_ONE_DASH, EXACTLY_TWO_DASHES, DASH_Z | |
137 | }; | |
138 | ||
139 | // LONGNAME is the long-name of the option with dashes converted to | |
140 | // underscores, or else the short-name if the option has no long-name. | |
141 | // It is never the empty string. | |
142 | // DASHES is an instance of the Dashes enum: ONE_DASH, TWO_DASHES, etc. | |
143 | // SHORTNAME is the short-name of the option, as a char, or '\0' if the | |
144 | // option has no short-name. If the option has no long-name, you | |
145 | // should specify the short-name in *both* VARNAME and here. | |
146 | // DEFAULT_VALUE is the value of the option if not specified on the | |
147 | // commandline, as a string. | |
148 | // HELPSTRING is the descriptive text used with the option via --help | |
149 | // HELPARG is how you define the argument to the option. | |
150 | // --help output is "-shortname HELPARG, --longname HELPARG: HELPSTRING" | |
151 | // HELPARG should be NULL iff the option is a bool and takes no arg. | |
086a1841 ILT |
152 | // OPTIONAL_ARG is true if this option takes an optional argument. An |
153 | // optional argument must be specifid as --OPTION=VALUE, not | |
154 | // --OPTION VALUE. | |
ee1fe73e ILT |
155 | // READER provides parse_to_value, which is a function that will convert |
156 | // a char* argument into the proper type and store it in some variable. | |
157 | // A One_option struct initializes itself with the global list of options | |
158 | // at constructor time, so be careful making one of these. | |
159 | struct One_option | |
160 | { | |
161 | std::string longname; | |
162 | Dashes dashes; | |
163 | char shortname; | |
164 | const char* default_value; | |
165 | const char* helpstring; | |
166 | const char* helparg; | |
086a1841 | 167 | bool optional_arg; |
ee1fe73e ILT |
168 | Struct_var* reader; |
169 | ||
170 | One_option(const char* ln, Dashes d, char sn, const char* dv, | |
086a1841 | 171 | const char* hs, const char* ha, bool oa, Struct_var* r) |
ee1fe73e | 172 | : longname(ln), dashes(d), shortname(sn), default_value(dv ? dv : ""), |
086a1841 | 173 | helpstring(hs), helparg(ha), optional_arg(oa), reader(r) |
ee1fe73e ILT |
174 | { |
175 | // In longname, we convert all underscores to dashes, since GNU | |
176 | // style uses dashes in option names. longname is likely to have | |
177 | // underscores in it because it's also used to declare a C++ | |
178 | // function. | |
179 | const char* pos = strchr(this->longname.c_str(), '_'); | |
180 | for (; pos; pos = strchr(pos, '_')) | |
181 | this->longname[pos - this->longname.c_str()] = '-'; | |
182 | ||
183 | // We only register ourselves if our helpstring is not NULL. This | |
184 | // is to support the "no-VAR" boolean variables, which we | |
185 | // conditionally turn on by defining "no-VAR" help text. | |
186 | if (this->helpstring) | |
187 | this->register_option(); | |
188 | } | |
189 | ||
190 | // This option takes an argument iff helparg is not NULL. | |
191 | bool | |
192 | takes_argument() const | |
193 | { return this->helparg != NULL; } | |
194 | ||
086a1841 ILT |
195 | // Whether the argument is optional. |
196 | bool | |
197 | takes_optional_argument() const | |
198 | { return this->optional_arg; } | |
199 | ||
ee1fe73e ILT |
200 | // Register this option with the global list of options. |
201 | void | |
202 | register_option(); | |
203 | ||
204 | // Print this option to stdout (used with --help). | |
205 | void | |
206 | print() const; | |
207 | }; | |
208 | ||
209 | // All options have a Struct_##varname that inherits from this and | |
210 | // actually implements parse_to_value for that option. | |
211 | struct Struct_var | |
212 | { | |
213 | // OPTION: the name of the option as specified on the commandline, | |
214 | // including leading dashes, and any text following the option: | |
215 | // "-O", "--defsym=mysym=0x1000", etc. | |
216 | // ARG: the arg associated with this option, or NULL if the option | |
217 | // takes no argument: "2", "mysym=0x1000", etc. | |
218 | // CMDLINE: the global Command_line object. Used by DEFINE_special. | |
219 | // OPTIONS: the global General_options object. Used by DEFINE_special. | |
220 | virtual void | |
221 | parse_to_value(const char* option, const char* arg, | |
222 | Command_line* cmdline, General_options* options) = 0; | |
223 | virtual | |
224 | ~Struct_var() // To make gcc happy. | |
225 | { } | |
226 | }; | |
bae7f79e | 227 | |
ee1fe73e ILT |
228 | // This is for "special" options that aren't of any predefined type. |
229 | struct Struct_special : public Struct_var | |
230 | { | |
231 | // If you change this, change the parse-fn in DEFINE_special as well. | |
232 | typedef void (General_options::*Parse_function)(const char*, const char*, | |
233 | Command_line*); | |
234 | Struct_special(const char* varname, Dashes dashes, char shortname, | |
235 | Parse_function parse_function, | |
236 | const char* helpstring, const char* helparg) | |
086a1841 | 237 | : option(varname, dashes, shortname, "", helpstring, helparg, false, this), |
ee1fe73e ILT |
238 | parse(parse_function) |
239 | { } | |
240 | ||
2ea97941 | 241 | void parse_to_value(const char* option, const char* arg, |
ee1fe73e | 242 | Command_line* cmdline, General_options* options) |
2ea97941 | 243 | { (options->*(this->parse))(option, arg, cmdline); } |
ee1fe73e ILT |
244 | |
245 | One_option option; | |
246 | Parse_function parse; | |
247 | }; | |
248 | ||
249 | } // End namespace options. | |
250 | ||
251 | ||
252 | // These are helper macros use by DEFINE_uint64/etc below. | |
253 | // This macro is used inside the General_options_ class, so defines | |
254 | // var() and set_var() as General_options methods. Arguments as are | |
255 | // for the constructor for One_option. param_type__ is the same as | |
256 | // type__ for built-in types, and "const type__ &" otherwise. | |
e96c574b DK |
257 | // |
258 | // When we define the linker command option "assert", the macro argument | |
259 | // varname__ of DEFINE_var below will be replaced by "assert". On Mac OSX | |
260 | // assert.h is included implicitly by one of the library headers we use. To | |
261 | // avoid unintended macro substitution of "assert()", we need to enclose | |
262 | // varname__ with parenthese. | |
ee1fe73e ILT |
263 | #define DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
264 | default_value_as_string__, helpstring__, helparg__, \ | |
086a1841 | 265 | optional_arg__, type__, param_type__, parse_fn__) \ |
ee1fe73e ILT |
266 | public: \ |
267 | param_type__ \ | |
e96c574b | 268 | (varname__)() const \ |
ee1fe73e ILT |
269 | { return this->varname__##_.value; } \ |
270 | \ | |
271 | bool \ | |
272 | user_set_##varname__() const \ | |
273 | { return this->varname__##_.user_set_via_option; } \ | |
274 | \ | |
2b706932 ILT |
275 | void \ |
276 | set_user_set_##varname__() \ | |
277 | { this->varname__##_.user_set_via_option = true; } \ | |
278 | \ | |
ee1fe73e ILT |
279 | private: \ |
280 | struct Struct_##varname__ : public options::Struct_var \ | |
281 | { \ | |
282 | Struct_##varname__() \ | |
283 | : option(#varname__, dashes__, shortname__, default_value_as_string__, \ | |
086a1841 | 284 | helpstring__, helparg__, optional_arg__, this), \ |
ee1fe73e ILT |
285 | user_set_via_option(false), value(default_value__) \ |
286 | { } \ | |
287 | \ | |
288 | void \ | |
289 | parse_to_value(const char* option_name, const char* arg, \ | |
290 | Command_line*, General_options*) \ | |
291 | { \ | |
292 | parse_fn__(option_name, arg, &this->value); \ | |
293 | this->user_set_via_option = true; \ | |
294 | } \ | |
295 | \ | |
296 | options::One_option option; \ | |
297 | bool user_set_via_option; \ | |
298 | type__ value; \ | |
299 | }; \ | |
300 | Struct_##varname__ varname__##_; \ | |
301 | void \ | |
302 | set_##varname__(param_type__ value) \ | |
303 | { this->varname__##_.value = value; } | |
304 | ||
305 | // These macros allow for easy addition of a new commandline option. | |
306 | ||
307 | // If no_helpstring__ is not NULL, then in addition to creating | |
d98bc257 ILT |
308 | // VARNAME, we also create an option called no-VARNAME (or, for a -z |
309 | // option, noVARNAME). | |
ee1fe73e ILT |
310 | #define DEFINE_bool(varname__, dashes__, shortname__, default_value__, \ |
311 | helpstring__, no_helpstring__) \ | |
312 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
313 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
086a1841 | 314 | false, bool, bool, options::parse_bool) \ |
ee1fe73e ILT |
315 | struct Struct_no_##varname__ : public options::Struct_var \ |
316 | { \ | |
d98bc257 ILT |
317 | Struct_no_##varname__() : option((dashes__ == options::DASH_Z \ |
318 | ? "no" #varname__ \ | |
319 | : "no-" #varname__), \ | |
320 | dashes__, '\0', \ | |
ee1fe73e | 321 | default_value__ ? "false" : "true", \ |
086a1841 | 322 | no_helpstring__, NULL, false, this) \ |
ee1fe73e ILT |
323 | { } \ |
324 | \ | |
325 | void \ | |
326 | parse_to_value(const char*, const char*, \ | |
327 | Command_line*, General_options* options) \ | |
41263c05 DK |
328 | { \ |
329 | options->set_##varname__(false); \ | |
330 | options->set_user_set_##varname__(); \ | |
331 | } \ | |
ee1fe73e ILT |
332 | \ |
333 | options::One_option option; \ | |
334 | }; \ | |
335 | Struct_no_##varname__ no_##varname__##_initializer_ | |
336 | ||
7c414435 DM |
337 | #define DEFINE_enable(varname__, dashes__, shortname__, default_value__, \ |
338 | helpstring__, no_helpstring__) \ | |
339 | DEFINE_var(enable_##varname__, dashes__, shortname__, default_value__, \ | |
340 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
341 | false, bool, bool, options::parse_bool) \ | |
342 | struct Struct_disable_##varname__ : public options::Struct_var \ | |
343 | { \ | |
344 | Struct_disable_##varname__() : option("disable-" #varname__, \ | |
345 | dashes__, '\0', \ | |
346 | default_value__ ? "false" : "true", \ | |
347 | no_helpstring__, NULL, false, this) \ | |
348 | { } \ | |
349 | \ | |
350 | void \ | |
351 | parse_to_value(const char*, const char*, \ | |
352 | Command_line*, General_options* options) \ | |
353 | { options->set_enable_##varname__(false); } \ | |
354 | \ | |
355 | options::One_option option; \ | |
356 | }; \ | |
357 | Struct_disable_##varname__ disable_##varname__##_initializer_ | |
358 | ||
c0a62865 DK |
359 | #define DEFINE_int(varname__, dashes__, shortname__, default_value__, \ |
360 | helpstring__, helparg__) \ | |
361 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
362 | #default_value__, helpstring__, helparg__, false, \ | |
363 | int, int, options::parse_int) | |
364 | ||
ee1fe73e ILT |
365 | #define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \ |
366 | helpstring__, helparg__) \ | |
367 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 368 | #default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
369 | int, int, options::parse_uint) |
370 | ||
371 | #define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \ | |
372 | helpstring__, helparg__) \ | |
373 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 374 | #default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
375 | uint64_t, uint64_t, options::parse_uint64) |
376 | ||
c18476e7 ILT |
377 | #define DEFINE_double(varname__, dashes__, shortname__, default_value__, \ |
378 | helpstring__, helparg__) \ | |
379 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 380 | #default_value__, helpstring__, helparg__, false, \ |
c18476e7 ILT |
381 | double, double, options::parse_double) |
382 | ||
9fbd3822 CC |
383 | #define DEFINE_percent(varname__, dashes__, shortname__, default_value__, \ |
384 | helpstring__, helparg__) \ | |
385 | DEFINE_var(varname__, dashes__, shortname__, default_value__ / 100.0, \ | |
386 | #default_value__, helpstring__, helparg__, false, \ | |
387 | double, double, options::parse_percent) | |
388 | ||
ee1fe73e ILT |
389 | #define DEFINE_string(varname__, dashes__, shortname__, default_value__, \ |
390 | helpstring__, helparg__) \ | |
391 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 392 | default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
393 | const char*, const char*, options::parse_string) |
394 | ||
395 | // This is like DEFINE_string, but we convert each occurrence to a | |
396 | // Search_directory and store it in a vector. Thus we also have the | |
397 | // add_to_VARNAME() method, to append to the vector. | |
398 | #define DEFINE_dirlist(varname__, dashes__, shortname__, \ | |
399 | helpstring__, helparg__) \ | |
400 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
086a1841 | 401 | "", helpstring__, helparg__, false, options::Dir_list, \ |
ee1fe73e ILT |
402 | const options::Dir_list&, options::parse_dirlist) \ |
403 | void \ | |
404 | add_to_##varname__(const char* new_value) \ | |
405 | { options::parse_dirlist(NULL, new_value, &this->varname__##_.value); } \ | |
406 | void \ | |
407 | add_search_directory_to_##varname__(const Search_directory& dir) \ | |
408 | { this->varname__##_.value.push_back(dir); } | |
409 | ||
c5818ff1 CC |
410 | // This is like DEFINE_string, but we store a set of strings. |
411 | #define DEFINE_set(varname__, dashes__, shortname__, \ | |
412 | helpstring__, helparg__) \ | |
413 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
414 | "", helpstring__, helparg__, false, options::String_set, \ | |
415 | const options::String_set&, options::parse_set) \ | |
416 | public: \ | |
417 | bool \ | |
418 | any_##varname__() const \ | |
419 | { return !this->varname__##_.value.empty(); } \ | |
f3e9c5c5 | 420 | \ |
c5818ff1 CC |
421 | bool \ |
422 | is_##varname__(const char* symbol) const \ | |
423 | { \ | |
424 | return (!this->varname__##_.value.empty() \ | |
425 | && (this->varname__##_.value.find(std::string(symbol)) \ | |
426 | != this->varname__##_.value.end())); \ | |
f3e9c5c5 ILT |
427 | } \ |
428 | \ | |
429 | options::String_set::const_iterator \ | |
430 | varname__##_begin() const \ | |
431 | { return this->varname__##_.value.begin(); } \ | |
432 | \ | |
433 | options::String_set::const_iterator \ | |
434 | varname__##_end() const \ | |
435 | { return this->varname__##_.value.end(); } | |
c5818ff1 | 436 | |
ee1fe73e ILT |
437 | // When you have a list of possible values (expressed as string) |
438 | // After helparg__ should come an initializer list, like | |
439 | // {"foo", "bar", "baz"} | |
440 | #define DEFINE_enum(varname__, dashes__, shortname__, default_value__, \ | |
441 | helpstring__, helparg__, ...) \ | |
442 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 443 | default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
444 | const char*, const char*, parse_choices_##varname__) \ |
445 | private: \ | |
446 | static void parse_choices_##varname__(const char* option_name, \ | |
447 | const char* arg, \ | |
448 | const char** retval) { \ | |
449 | const char* choices[] = __VA_ARGS__; \ | |
450 | options::parse_choices(option_name, arg, retval, \ | |
451 | choices, sizeof(choices) / sizeof(*choices)); \ | |
452 | } | |
453 | ||
2b706932 ILT |
454 | // This is like DEFINE_bool, but VARNAME is the name of a different |
455 | // option. This option becomes an alias for that one. INVERT is true | |
456 | // if this option is an inversion of the other one. | |
457 | #define DEFINE_bool_alias(option__, varname__, dashes__, shortname__, \ | |
458 | helpstring__, no_helpstring__, invert__) \ | |
459 | private: \ | |
460 | struct Struct_##option__ : public options::Struct_var \ | |
461 | { \ | |
462 | Struct_##option__() \ | |
463 | : option(#option__, dashes__, shortname__, "", helpstring__, \ | |
464 | NULL, false, this) \ | |
465 | { } \ | |
466 | \ | |
467 | void \ | |
468 | parse_to_value(const char*, const char*, \ | |
469 | Command_line*, General_options* options) \ | |
470 | { \ | |
471 | options->set_##varname__(!invert__); \ | |
472 | options->set_user_set_##varname__(); \ | |
473 | } \ | |
474 | \ | |
475 | options::One_option option; \ | |
476 | }; \ | |
477 | Struct_##option__ option__##_; \ | |
478 | \ | |
479 | struct Struct_no_##option__ : public options::Struct_var \ | |
480 | { \ | |
481 | Struct_no_##option__() \ | |
482 | : option((dashes__ == options::DASH_Z \ | |
483 | ? "no" #option__ \ | |
484 | : "no-" #option__), \ | |
485 | dashes__, '\0', "", no_helpstring__, \ | |
486 | NULL, false, this) \ | |
487 | { } \ | |
488 | \ | |
489 | void \ | |
490 | parse_to_value(const char*, const char*, \ | |
491 | Command_line*, General_options* options) \ | |
492 | { \ | |
493 | options->set_##varname__(invert__); \ | |
494 | options->set_user_set_##varname__(); \ | |
495 | } \ | |
496 | \ | |
497 | options::One_option option; \ | |
498 | }; \ | |
499 | Struct_no_##option__ no_##option__##_initializer_ | |
500 | ||
214383dd ILT |
501 | // This is like DEFINE_uint64, but VARNAME is the name of a different |
502 | // option. This option becomes an alias for that one. | |
503 | #define DEFINE_uint64_alias(option__, varname__, dashes__, shortname__, \ | |
504 | helpstring__, helparg__) \ | |
505 | private: \ | |
506 | struct Struct_##option__ : public options::Struct_var \ | |
507 | { \ | |
508 | Struct_##option__() \ | |
509 | : option(#option__, dashes__, shortname__, "", helpstring__, \ | |
510 | helparg__, false, this) \ | |
511 | { } \ | |
512 | \ | |
513 | void \ | |
514 | parse_to_value(const char* option_name, const char* arg, \ | |
515 | Command_line*, General_options* options) \ | |
516 | { \ | |
517 | uint64_t value; \ | |
518 | options::parse_uint64(option_name, arg, &value); \ | |
519 | options->set_##varname__(value); \ | |
520 | options->set_user_set_##varname__(); \ | |
521 | } \ | |
522 | \ | |
523 | options::One_option option; \ | |
524 | }; \ | |
525 | Struct_##option__ option__##_; | |
526 | ||
ee1fe73e ILT |
527 | // This is used for non-standard flags. It defines no functions; it |
528 | // just calls General_options::parse_VARNAME whenever the flag is | |
529 | // seen. We declare parse_VARNAME as a static member of | |
530 | // General_options; you are responsible for defining it there. | |
531 | // helparg__ should be NULL iff this special-option is a boolean. | |
532 | #define DEFINE_special(varname__, dashes__, shortname__, \ | |
533 | helpstring__, helparg__) \ | |
534 | private: \ | |
535 | void parse_##varname__(const char* option, const char* arg, \ | |
536 | Command_line* inputs); \ | |
537 | struct Struct_##varname__ : public options::Struct_special \ | |
538 | { \ | |
539 | Struct_##varname__() \ | |
540 | : options::Struct_special(#varname__, dashes__, shortname__, \ | |
541 | &General_options::parse_##varname__, \ | |
542 | helpstring__, helparg__) \ | |
543 | { } \ | |
544 | }; \ | |
545 | Struct_##varname__ varname__##_initializer_ | |
bae7f79e | 546 | |
086a1841 ILT |
547 | // An option that takes an optional string argument. If the option is |
548 | // used with no argument, the value will be the default, and | |
549 | // user_set_via_option will be true. | |
550 | #define DEFINE_optional_string(varname__, dashes__, shortname__, \ | |
551 | default_value__, \ | |
552 | helpstring__, helparg__) \ | |
553 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
554 | default_value__, helpstring__, helparg__, true, \ | |
555 | const char*, const char*, options::parse_optional_string) | |
bae7f79e | 556 | |
ad2d6943 ILT |
557 | // A directory to search. For each directory we record whether it is |
558 | // in the sysroot. We need to know this so that, if a linker script | |
559 | // is found within the sysroot, we will apply the sysroot to any files | |
560 | // named by that script. | |
561 | ||
562 | class Search_directory | |
563 | { | |
564 | public: | |
565 | // We need a default constructor because we put this in a | |
566 | // std::vector. | |
567 | Search_directory() | |
568 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
569 | { } | |
570 | ||
571 | // This is the usual constructor. | |
3f3cddf1 | 572 | Search_directory(const std::string& name, bool put_in_sysroot) |
2ea97941 | 573 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) |
15893b88 ILT |
574 | { |
575 | if (this->name_.empty()) | |
576 | this->name_ = "."; | |
577 | } | |
ad2d6943 ILT |
578 | |
579 | // This is called if we have a sysroot. The sysroot is prefixed to | |
580 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
581 | // set to true for any enries which are in the sysroot (this will | |
582 | // naturally include any entries for which put_in_sysroot_ is true). | |
583 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
584 | // passing SYSROOT to lrealpath. | |
585 | void | |
586 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
587 | ||
588 | // Get the directory name. | |
589 | const std::string& | |
590 | name() const | |
591 | { return this->name_; } | |
592 | ||
593 | // Return whether this directory is in the sysroot. | |
594 | bool | |
595 | is_in_sysroot() const | |
596 | { return this->is_in_sysroot_; } | |
597 | ||
fd9d194f ILT |
598 | // Return whether this is considered a system directory. |
599 | bool | |
600 | is_system_directory() const | |
601 | { return this->put_in_sysroot_ || this->is_in_sysroot_; } | |
602 | ||
ad2d6943 | 603 | private: |
fd9d194f | 604 | // The directory name. |
ad2d6943 | 605 | std::string name_; |
fd9d194f ILT |
606 | // True if the sysroot should be added as a prefix for this |
607 | // directory (if there is a sysroot). This is true for system | |
608 | // directories that we search by default. | |
ad2d6943 | 609 | bool put_in_sysroot_; |
fd9d194f ILT |
610 | // True if this directory is in the sysroot (if there is a sysroot). |
611 | // This is true if there is a sysroot and either 1) put_in_sysroot_ | |
612 | // is true, or 2) the directory happens to be in the sysroot based | |
613 | // on a pathname comparison. | |
ad2d6943 ILT |
614 | bool is_in_sysroot_; |
615 | }; | |
616 | ||
bae7f79e ILT |
617 | class General_options |
618 | { | |
ee1fe73e ILT |
619 | private: |
620 | // NOTE: For every option that you add here, also consider if you | |
621 | // should add it to Position_dependent_options. | |
622 | DEFINE_special(help, options::TWO_DASHES, '\0', | |
a4d4b13f | 623 | N_("Report usage information"), NULL); |
ee1fe73e | 624 | DEFINE_special(version, options::TWO_DASHES, 'v', |
a4d4b13f | 625 | N_("Report version information"), NULL); |
b5be4a7c DM |
626 | DEFINE_special(V, options::EXACTLY_ONE_DASH, '\0', |
627 | N_("Report version and target information"), NULL); | |
ee1fe73e | 628 | |
fee2edb1 ILT |
629 | // These options are sorted approximately so that for each letter in |
630 | // the alphabet, we show the option whose shortname is that letter | |
631 | // (if any) and then every longname that starts with that letter (in | |
632 | // alphabetical order). For both, lowercase sorts before uppercase. | |
633 | // The -z options come last. | |
634 | ||
7eaea549 ILT |
635 | DEFINE_bool(add_needed, options::TWO_DASHES, '\0', false, |
636 | N_("Not supported"), | |
637 | N_("Do not copy DT_NEEDED tags from shared libraries")); | |
638 | ||
9c4ae156 ILT |
639 | DEFINE_bool_alias(allow_multiple_definition, muldefs, options::TWO_DASHES, |
640 | '\0', N_("Allow multiple definitions of symbols"), | |
641 | N_("Do not allow multiple definitions"), false); | |
30bc8c46 | 642 | |
ee1fe73e | 643 | DEFINE_bool(allow_shlib_undefined, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
644 | N_("Allow unresolved references in shared libraries"), |
645 | N_("Do not allow unresolved references in shared libraries")); | |
ee1fe73e ILT |
646 | |
647 | DEFINE_bool(as_needed, options::TWO_DASHES, '\0', false, | |
7eaea549 ILT |
648 | N_("Only set DT_NEEDED for shared libraries if used"), |
649 | N_("Always DT_NEEDED for shared libraries")); | |
ee1fe73e | 650 | |
fe35d28d ILT |
651 | DEFINE_enum(assert, options::ONE_DASH, '\0', NULL, |
652 | N_("Ignored"), N_("[ignored]"), | |
653 | {"definitions", "nodefinitions", "nosymbolic", "pure-text"}); | |
654 | ||
fee2edb1 ILT |
655 | // This should really be an "enum", but it's too easy for folks to |
656 | // forget to update the list as they add new targets. So we just | |
657 | // accept any string. We'll fail later (when the string is parsed), | |
658 | // if the target isn't actually supported. | |
659 | DEFINE_string(format, options::TWO_DASHES, 'b', "elf", | |
660 | N_("Set input format"), ("[elf,binary]")); | |
661 | ||
ee1fe73e | 662 | DEFINE_bool(Bdynamic, options::ONE_DASH, '\0', true, |
a4d4b13f | 663 | N_("-l searches for shared libraries"), NULL); |
2b706932 ILT |
664 | DEFINE_bool_alias(Bstatic, Bdynamic, options::ONE_DASH, '\0', |
665 | N_("-l does not search for shared libraries"), NULL, | |
666 | true); | |
b821d13c ILT |
667 | DEFINE_bool_alias(dy, Bdynamic, options::ONE_DASH, '\0', |
668 | N_("alias for -Bdynamic"), NULL, false); | |
669 | DEFINE_bool_alias(dn, Bdynamic, options::ONE_DASH, '\0', | |
670 | N_("alias for -Bstatic"), NULL, true); | |
ee1fe73e | 671 | |
e2153196 ILT |
672 | DEFINE_bool(Bgroup, options::ONE_DASH, '\0', false, |
673 | N_("Use group name lookup rules for shared library"), NULL); | |
674 | ||
ee1fe73e | 675 | DEFINE_bool(Bsymbolic, options::ONE_DASH, '\0', false, |
a4d4b13f | 676 | N_("Bind defined symbols locally"), NULL); |
ee1fe73e | 677 | |
f1f70eae ILT |
678 | DEFINE_bool(Bsymbolic_functions, options::ONE_DASH, '\0', false, |
679 | N_("Bind defined function symbols locally"), NULL); | |
680 | ||
e7c5ea40 | 681 | DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "tree", |
8ed814a9 ILT |
682 | N_("Generate build ID note"), |
683 | N_("[=STYLE]")); | |
684 | ||
e7c5ea40 CC |
685 | DEFINE_uint64(build_id_chunk_size_for_treehash, |
686 | options::TWO_DASHES, '\0', 2 << 20, | |
687 | N_("Chunk size for '--build-id=tree'"), N_("SIZE")); | |
688 | ||
689 | DEFINE_uint64(build_id_min_file_size_for_treehash, options::TWO_DASHES, | |
690 | '\0', 40 << 20, | |
691 | N_("Minimum output file size for '--build-id=tree' to work" | |
692 | " differently than '--build-id=sha1'"), N_("SIZE")); | |
693 | ||
34810851 ILT |
694 | DEFINE_bool(check_sections, options::TWO_DASHES, '\0', true, |
695 | N_("Check segment addresses for overlaps (default)"), | |
696 | N_("Do not check segment addresses for overlaps")); | |
697 | ||
ee1fe73e ILT |
698 | #ifdef HAVE_ZLIB_H |
699 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
700 | N_("Compress .debug_* sections in the output file"), |
701 | ("[none,zlib]"), | |
ee1fe73e ILT |
702 | {"none", "zlib"}); |
703 | #else | |
704 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
705 | N_("Compress .debug_* sections in the output file"), |
706 | N_("[none]"), | |
ee1fe73e ILT |
707 | {"none"}); |
708 | #endif | |
0dfbdef4 | 709 | |
7eaea549 ILT |
710 | DEFINE_bool(copy_dt_needed_entries, options::TWO_DASHES, '\0', false, |
711 | N_("Not supported"), | |
712 | N_("Do not copy DT_NEEDED tags from shared libraries")); | |
713 | ||
dde3f402 ILT |
714 | DEFINE_bool(cref, options::TWO_DASHES, '\0', false, |
715 | N_("Output cross reference table"), | |
716 | N_("Do not output cross reference table")); | |
717 | ||
5393d741 ILT |
718 | DEFINE_bool(ctors_in_init_array, options::TWO_DASHES, '\0', true, |
719 | N_("Use DT_INIT_ARRAY for all constructors (default)"), | |
720 | N_("Handle constructors as directed by compiler")); | |
721 | ||
ee1fe73e | 722 | DEFINE_bool(define_common, options::TWO_DASHES, 'd', false, |
a4d4b13f ILT |
723 | N_("Define common symbols"), |
724 | N_("Do not define common symbols")); | |
ee1fe73e | 725 | DEFINE_bool(dc, options::ONE_DASH, '\0', false, |
a4d4b13f | 726 | N_("Alias for -d"), NULL); |
ee1fe73e | 727 | DEFINE_bool(dp, options::ONE_DASH, '\0', false, |
a4d4b13f | 728 | N_("Alias for -d"), NULL); |
d391083d | 729 | |
fee2edb1 | 730 | DEFINE_string(debug, options::TWO_DASHES, '\0', "", |
2285a610 ILT |
731 | N_("Turn on debugging"), |
732 | N_("[all,files,script,task][,...]")); | |
fee2edb1 | 733 | |
ee1fe73e | 734 | DEFINE_special(defsym, options::TWO_DASHES, '\0', |
a4d4b13f | 735 | N_("Define a symbol"), N_("SYMBOL=EXPRESSION")); |
a6badf5a | 736 | |
086a1841 ILT |
737 | DEFINE_optional_string(demangle, options::TWO_DASHES, '\0', NULL, |
738 | N_("Demangle C++ symbols in log messages"), | |
739 | N_("[=STYLE]")); | |
740 | ||
741 | DEFINE_bool(no_demangle, options::TWO_DASHES, '\0', false, | |
742 | N_("Do not demangle C++ symbols in log messages"), | |
743 | NULL); | |
fced7afd | 744 | |
ee1fe73e | 745 | DEFINE_bool(detect_odr_violations, options::TWO_DASHES, '\0', false, |
f30f86fa ILT |
746 | N_("Look for violations of the C++ One Definition Rule"), |
747 | N_("Do not look for violations of the C++ One Definition Rule")); | |
ee1fe73e | 748 | |
ebcc8304 ILT |
749 | DEFINE_bool(discard_all, options::TWO_DASHES, 'x', false, |
750 | N_("Delete all local symbols"), NULL); | |
bb04269c DK |
751 | DEFINE_bool(discard_locals, options::TWO_DASHES, 'X', false, |
752 | N_("Delete all temporary local symbols"), NULL); | |
753 | ||
c82fbeee CS |
754 | DEFINE_bool(dynamic_list_data, options::TWO_DASHES, '\0', false, |
755 | N_("Add data symbols to dynamic symbols"), NULL); | |
756 | ||
757 | DEFINE_bool(dynamic_list_cpp_new, options::TWO_DASHES, '\0', false, | |
758 | N_("Add C++ operator new/delete to dynamic symbols"), NULL); | |
759 | ||
760 | DEFINE_bool(dynamic_list_cpp_typeinfo, options::TWO_DASHES, '\0', false, | |
761 | N_("Add C++ typeinfo to dynamic symbols"), NULL); | |
762 | ||
763 | DEFINE_special(dynamic_list, options::TWO_DASHES, '\0', | |
764 | N_("Read a list of dynamic symbols"), N_("FILE")); | |
765 | ||
ee1fe73e | 766 | DEFINE_string(entry, options::TWO_DASHES, 'e', NULL, |
a4d4b13f | 767 | N_("Set program start address"), N_("ADDRESS")); |
ee1fe73e | 768 | |
65514900 CC |
769 | DEFINE_special(exclude_libs, options::TWO_DASHES, '\0', |
770 | N_("Exclude libraries from automatic export"), | |
771 | N_(("lib,lib ..."))); | |
772 | ||
ee1fe73e | 773 | DEFINE_bool(export_dynamic, options::TWO_DASHES, 'E', false, |
ee769c88 ILT |
774 | N_("Export all dynamic symbols"), |
775 | N_("Do not export all dynamic symbols (default)")); | |
dbe717ef | 776 | |
31821be0 CC |
777 | DEFINE_set(export_dynamic_symbol, options::TWO_DASHES, '\0', |
778 | N_("Export SYMBOL to dynamic symbol table"), N_("SYMBOL")); | |
779 | ||
7296d933 DK |
780 | DEFINE_special(EB, options::ONE_DASH, '\0', |
781 | N_("Link big-endian objects."), NULL); | |
782 | ||
7296d933 DK |
783 | DEFINE_special(EL, options::ONE_DASH, '\0', |
784 | N_("Link little-endian objects."), NULL); | |
785 | ||
f1ddb600 ILT |
786 | DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false, |
787 | N_("Create exception frame header"), NULL); | |
788 | ||
ce0d1972 DK |
789 | DEFINE_bool(enum_size_warning, options::TWO_DASHES, '\0', true, NULL, |
790 | N_("(ARM only) Do not warn about objects with incompatible " | |
791 | "enum sizes")); | |
792 | ||
886288f1 ILT |
793 | DEFINE_set(auxiliary, options::TWO_DASHES, 'f', |
794 | N_("Auxiliary filter for shared object symbol table"), | |
795 | N_("SHLIB")); | |
796 | ||
797 | DEFINE_string(filter, options::TWO_DASHES, 'F', NULL, | |
798 | N_("Filter for shared object symbol table"), | |
799 | N_("SHLIB")); | |
800 | ||
d82a5bcc ILT |
801 | DEFINE_bool(fatal_warnings, options::TWO_DASHES, '\0', false, |
802 | N_("Treat warnings as errors"), | |
803 | N_("Do not treat warnings as errors")); | |
804 | ||
c6585162 ILT |
805 | DEFINE_string(fini, options::ONE_DASH, '\0', "_fini", |
806 | N_("Call SYMBOL at unload-time"), N_("SYMBOL")); | |
807 | ||
41263c05 DK |
808 | DEFINE_bool(fix_cortex_a8, options::TWO_DASHES, '\0', false, |
809 | N_("(ARM only) Fix binaries for Cortex-A8 erratum."), | |
810 | N_("(ARM only) Do not fix binaries for Cortex-A8 erratum.")); | |
811 | ||
a8e2273b ILT |
812 | DEFINE_bool(fix_arm1176, options::TWO_DASHES, '\0', true, |
813 | N_("(ARM only) Fix binaries for ARM1176 erratum."), | |
814 | N_("(ARM only) Do not fix binaries for ARM1176 erratum.")); | |
815 | ||
85fdf906 AH |
816 | DEFINE_bool(merge_exidx_entries, options::TWO_DASHES, '\0', true, |
817 | N_("(ARM only) Merge exidx entries in debuginfo."), | |
818 | N_("(ARM only) Do not merge exidx entries in debuginfo.")); | |
819 | ||
9b2fd367 DK |
820 | DEFINE_special(fix_v4bx, options::TWO_DASHES, '\0', |
821 | N_("(ARM only) Rewrite BX rn as MOV pc, rn for ARMv4"), | |
822 | NULL); | |
823 | ||
824 | DEFINE_special(fix_v4bx_interworking, options::TWO_DASHES, '\0', | |
825 | N_("(ARM only) Rewrite BX rn branch to ARMv4 interworking " | |
826 | "veneer"), | |
827 | NULL); | |
828 | ||
fe35d28d ILT |
829 | DEFINE_bool(g, options::EXACTLY_ONE_DASH, '\0', false, |
830 | N_("Ignored"), NULL); | |
831 | ||
c1027032 CC |
832 | DEFINE_bool(gdb_index, options::TWO_DASHES, '\0', false, |
833 | N_("Generate .gdb_index section"), | |
834 | N_("Do not generate .gdb_index section")); | |
835 | ||
9634ed06 CC |
836 | DEFINE_bool(gnu_unique, options::TWO_DASHES, '\0', true, |
837 | N_("Enable STB_GNU_UNIQUE symbol binding (default)"), | |
838 | N_("Disable STB_GNU_UNIQUE symbol binding")); | |
839 | ||
ee1fe73e | 840 | DEFINE_string(soname, options::ONE_DASH, 'h', NULL, |
a4d4b13f | 841 | N_("Set shared library name"), N_("FILENAME")); |
ee1fe73e | 842 | |
c18476e7 ILT |
843 | DEFINE_double(hash_bucket_empty_fraction, options::TWO_DASHES, '\0', 0.0, |
844 | N_("Min fraction of empty buckets in dynamic hash"), | |
845 | N_("FRACTION")); | |
846 | ||
13670ee6 | 847 | DEFINE_enum(hash_style, options::TWO_DASHES, '\0', "sysv", |
a4d4b13f | 848 | N_("Dynamic hash style"), N_("[sysv,gnu,both]"), |
13670ee6 ILT |
849 | {"sysv", "gnu", "both"}); |
850 | ||
ee1fe73e | 851 | DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL, |
a4d4b13f | 852 | N_("Set dynamic linker path"), N_("PROGRAM")); |
ee1fe73e | 853 | |
8c21d9d3 CC |
854 | DEFINE_special(incremental, options::TWO_DASHES, '\0', |
855 | N_("Do an incremental link if possible; " | |
856 | "otherwise, do a full link and prepare output " | |
857 | "for incremental linking"), NULL); | |
858 | ||
859 | DEFINE_special(no_incremental, options::TWO_DASHES, '\0', | |
860 | N_("Do a full link (default)"), NULL); | |
861 | ||
862 | DEFINE_special(incremental_full, options::TWO_DASHES, '\0', | |
863 | N_("Do a full link and " | |
864 | "prepare output for incremental linking"), NULL); | |
865 | ||
866 | DEFINE_special(incremental_update, options::TWO_DASHES, '\0', | |
867 | N_("Do an incremental link; exit if not possible"), NULL); | |
266d0a74 | 868 | |
aa92d6ed CC |
869 | DEFINE_string(incremental_base, options::TWO_DASHES, '\0', NULL, |
870 | N_("Set base file for incremental linking" | |
871 | " (default is output file)"), | |
872 | N_("FILE")); | |
873 | ||
266d0a74 ILT |
874 | DEFINE_special(incremental_changed, options::TWO_DASHES, '\0', |
875 | N_("Assume files changed"), NULL); | |
876 | ||
877 | DEFINE_special(incremental_unchanged, options::TWO_DASHES, '\0', | |
878 | N_("Assume files didn't change"), NULL); | |
879 | ||
880 | DEFINE_special(incremental_unknown, options::TWO_DASHES, '\0', | |
881 | N_("Use timestamps to check files (default)"), NULL); | |
882 | ||
221597a5 CC |
883 | DEFINE_special(incremental_startup_unchanged, options::TWO_DASHES, '\0', |
884 | N_("Assume startup files unchanged " | |
885 | "(files preceding this option)"), NULL); | |
886 | ||
9fbd3822 CC |
887 | DEFINE_percent(incremental_patch, options::TWO_DASHES, '\0', 10, |
888 | N_("Amount of extra space to allocate for patches"), | |
889 | N_("PERCENT")); | |
890 | ||
c6585162 ILT |
891 | DEFINE_string(init, options::ONE_DASH, '\0', "_init", |
892 | N_("Call SYMBOL at load-time"), N_("SYMBOL")); | |
893 | ||
fee2edb1 ILT |
894 | DEFINE_special(just_symbols, options::TWO_DASHES, '\0', |
895 | N_("Read only symbol values from FILE"), N_("FILE")); | |
896 | ||
a2a5469e | 897 | DEFINE_bool(map_whole_files, options::TWO_DASHES, '\0', |
2c849493 ILT |
898 | sizeof(void*) >= 8, |
899 | N_("Map whole files to memory (default on 64-bit hosts)"), | |
900 | N_("Map relevant file parts to memory (default on 32-bit " | |
901 | "hosts)")); | |
a2a5469e CC |
902 | DEFINE_bool(keep_files_mapped, options::TWO_DASHES, '\0', true, |
903 | N_("Keep files mapped across passes (default)"), | |
904 | N_("Release mapped files after each pass")); | |
2c849493 | 905 | |
07a60597 ILT |
906 | DEFINE_bool(ld_generated_unwind_info, options::TWO_DASHES, '\0', true, |
907 | N_("Generate unwind information for PLT (default)"), | |
908 | N_("Do not generate unwind information for PLT")); | |
909 | ||
ee1fe73e | 910 | DEFINE_special(library, options::TWO_DASHES, 'l', |
a4d4b13f | 911 | N_("Search for library LIBNAME"), N_("LIBNAME")); |
bae7f79e | 912 | |
ee1fe73e | 913 | DEFINE_dirlist(library_path, options::TWO_DASHES, 'L', |
a4d4b13f | 914 | N_("Add directory to search path"), N_("DIR")); |
ee1fe73e | 915 | |
c6ac678d ST |
916 | DEFINE_bool(text_reorder, options::TWO_DASHES, '\0', true, |
917 | N_("Enable text section reordering for GCC section names " | |
918 | "(default)"), | |
919 | N_("Disable text section reordering for GCC section names")); | |
920 | ||
91e75c8a RÁE |
921 | DEFINE_bool(nostdlib, options::ONE_DASH, '\0', false, |
922 | N_(" Only search directories specified on the command line."), | |
923 | NULL); | |
924 | ||
0f72bf6f RÁE |
925 | DEFINE_bool(rosegment, options::TWO_DASHES, '\0', false, |
926 | N_(" Put read-only non-executable sections in their own segment"), | |
927 | NULL); | |
928 | ||
ee1fe73e | 929 | DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "", |
03ef7571 | 930 | N_("Set GNU linker emulation; obsolete"), N_("EMULATION")); |
ee1fe73e | 931 | |
7c0640fa CC |
932 | DEFINE_bool(mmap_output_file, options::TWO_DASHES, '\0', true, |
933 | N_("Map the output file for writing (default)."), | |
934 | N_("Do not map the output file for writing.")); | |
935 | ||
7d9e3d98 ILT |
936 | DEFINE_bool(print_map, options::TWO_DASHES, 'M', false, |
937 | N_("Write map file on standard output"), NULL); | |
938 | DEFINE_string(Map, options::ONE_DASH, '\0', NULL, N_("Write map file"), | |
939 | N_("MAPFILENAME")); | |
940 | ||
af6156ef ILT |
941 | DEFINE_bool(nmagic, options::TWO_DASHES, 'n', false, |
942 | N_("Do not page align data"), NULL); | |
943 | DEFINE_bool(omagic, options::EXACTLY_TWO_DASHES, 'N', false, | |
944 | N_("Do not page align data, do not make text readonly"), | |
945 | N_("Page align data, make text readonly")); | |
946 | ||
50701cc1 | 947 | DEFINE_enable(new_dtags, options::EXACTLY_TWO_DASHES, '\0', true, |
7c414435 DM |
948 | N_("Enable use of DT_RUNPATH and DT_FLAGS"), |
949 | N_("Disable use of DT_RUNPATH and DT_FLAGS")); | |
950 | ||
cdb0b8f5 ILT |
951 | DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false, |
952 | N_("Create an output file even if errors occur"), NULL); | |
953 | ||
f3e9c5c5 ILT |
954 | DEFINE_bool_alias(no_undefined, defs, options::TWO_DASHES, '\0', |
955 | N_("Report undefined symbols (even with --shared)"), | |
956 | NULL, false); | |
957 | ||
ee1fe73e | 958 | DEFINE_string(output, options::TWO_DASHES, 'o', "a.out", |
a4d4b13f | 959 | N_("Set output file name"), N_("FILE")); |
ee1fe73e ILT |
960 | |
961 | DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0, | |
a4d4b13f | 962 | N_("Optimize output file size"), N_("LEVEL")); |
ee1fe73e | 963 | |
a4d4b13f ILT |
964 | DEFINE_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf", |
965 | N_("Set output format"), N_("[binary]")); | |
ee1fe73e | 966 | |
7296d933 DK |
967 | DEFINE_bool(p, options::ONE_DASH, '\0', false, |
968 | N_("(ARM only) Ignore for backward compatibility"), NULL); | |
969 | ||
374ad285 ILT |
970 | DEFINE_bool(pie, options::ONE_DASH, '\0', false, |
971 | N_("Create a position independent executable"), NULL); | |
972 | DEFINE_bool_alias(pic_executable, pie, options::TWO_DASHES, '\0', | |
973 | N_("Create a position independent executable"), NULL, | |
974 | false); | |
975 | ||
7296d933 DK |
976 | DEFINE_bool(pipeline_knowledge, options::ONE_DASH, '\0', false, |
977 | NULL, N_("(ARM only) Ignore for backward compatibility")); | |
978 | ||
9e69ed50 AM |
979 | DEFINE_var(plt_align, options::TWO_DASHES, '\0', 0, "5", |
980 | N_("(PowerPC64 only) Align PLT call stubs to fit cache lines"), | |
981 | N_("[=P2ALIGN]"), true, int, int, options::parse_uint); | |
982 | ||
983 | DEFINE_bool(plt_static_chain, options::TWO_DASHES, '\0', false, | |
984 | N_("(PowerPC64 only) PLT call stubs should load r11"), | |
985 | N_("(PowerPC64 only) PLT call stubs should not load r11")); | |
986 | ||
987 | DEFINE_bool(plt_thread_safe, options::TWO_DASHES, '\0', false, | |
988 | N_("(PowerPC64 only) PLT call stubs with load-load barrier"), | |
989 | N_("(PowerPC64 only) PLT call stubs without barrier")); | |
990 | ||
89fc3421 CC |
991 | #ifdef ENABLE_PLUGINS |
992 | DEFINE_special(plugin, options::TWO_DASHES, '\0', | |
4674ecfc CC |
993 | N_("Load a plugin library"), N_("PLUGIN")); |
994 | DEFINE_special(plugin_opt, options::TWO_DASHES, '\0', | |
995 | N_("Pass an option to the plugin"), N_("OPTION")); | |
89fc3421 CC |
996 | #endif |
997 | ||
7c0640fa CC |
998 | DEFINE_bool(posix_fallocate, options::TWO_DASHES, '\0', true, |
999 | N_("Use posix_fallocate to reserve space in the output file" | |
1000 | " (default)."), | |
1001 | N_("Use fallocate or ftruncate to reserve space.")); | |
1002 | ||
ac45a351 CC |
1003 | DEFINE_bool(preread_archive_symbols, options::TWO_DASHES, '\0', false, |
1004 | N_("Preread archive symbols when multi-threaded"), NULL); | |
89fc3421 | 1005 | |
f1ddb600 ILT |
1006 | DEFINE_bool(print_output_format, options::TWO_DASHES, '\0', false, |
1007 | N_("Print default output format"), NULL); | |
1008 | ||
92de84a6 ILT |
1009 | DEFINE_string(print_symbol_counts, options::TWO_DASHES, '\0', NULL, |
1010 | N_("Print symbols defined and used for each input"), | |
1011 | N_("FILENAME")); | |
1012 | ||
b5be4a7c DM |
1013 | DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false, |
1014 | N_("Ignored for SVR4 compatibility"), NULL); | |
1015 | ||
ee1fe73e | 1016 | DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false, |
a4d4b13f | 1017 | N_("Generate relocations in output"), NULL); |
ee1fe73e ILT |
1018 | |
1019 | DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false, | |
a4d4b13f | 1020 | N_("Generate relocatable output"), NULL); |
ec69d6da ILT |
1021 | DEFINE_bool_alias(i, relocatable, options::EXACTLY_ONE_DASH, '\0', |
1022 | N_("Synonym for -r"), NULL, false); | |
ee1fe73e | 1023 | |
706e1f5e ILT |
1024 | DEFINE_bool(relax, options::TWO_DASHES, '\0', false, |
1025 | N_("Relax branches on certain targets"), NULL); | |
1026 | ||
719328e1 ILT |
1027 | DEFINE_string(retain_symbols_file, options::TWO_DASHES, '\0', NULL, |
1028 | N_("keep only symbols listed in this file"), N_("FILE")); | |
8c604651 | 1029 | |
ee1fe73e ILT |
1030 | // -R really means -rpath, but can mean --just-symbols for |
1031 | // compatibility with GNU ld. -rpath is always -rpath, so we list | |
1032 | // it separately. | |
1033 | DEFINE_special(R, options::EXACTLY_ONE_DASH, 'R', | |
a4d4b13f | 1034 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e ILT |
1035 | |
1036 | DEFINE_dirlist(rpath, options::ONE_DASH, '\0', | |
a4d4b13f | 1037 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e | 1038 | |
ee1fe73e | 1039 | DEFINE_dirlist(rpath_link, options::TWO_DASHES, '\0', |
a4d4b13f ILT |
1040 | N_("Add DIR to link time shared library search path"), |
1041 | N_("DIR")); | |
ee1fe73e | 1042 | |
6e9ba2ca ST |
1043 | DEFINE_string(section_ordering_file, options::TWO_DASHES, '\0', NULL, |
1044 | N_("Layout sections in the order specified."), | |
1045 | N_("FILENAME")); | |
1046 | ||
a192ba05 ILT |
1047 | DEFINE_special(section_start, options::TWO_DASHES, '\0', |
1048 | N_("Set address of section"), N_("SECTION=ADDRESS")); | |
1049 | ||
fc59c572 ILT |
1050 | DEFINE_optional_string(sort_common, options::TWO_DASHES, '\0', NULL, |
1051 | N_("Sort common symbols by alignment"), | |
1052 | N_("[={ascending,descending}]")); | |
1053 | ||
9e9e071b ILT |
1054 | DEFINE_uint(spare_dynamic_tags, options::TWO_DASHES, '\0', 5, |
1055 | N_("Dynamic tag slots to reserve (default 5)"), | |
1056 | N_("COUNT")); | |
1057 | ||
ee1fe73e | 1058 | DEFINE_bool(strip_all, options::TWO_DASHES, 's', false, |
a4d4b13f | 1059 | N_("Strip all symbols"), NULL); |
fee2edb1 ILT |
1060 | DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false, |
1061 | N_("Strip debugging information"), NULL); | |
62b01cb5 ILT |
1062 | DEFINE_bool(strip_debug_non_line, options::TWO_DASHES, '\0', false, |
1063 | N_("Emit only debug line number information"), NULL); | |
ee1fe73e | 1064 | DEFINE_bool(strip_debug_gdb, options::TWO_DASHES, '\0', false, |
a4d4b13f | 1065 | N_("Strip debug symbols that are unused by gdb " |
fb1b895d | 1066 | "(at least versions <= 7.4)"), NULL); |
fd06b4aa CC |
1067 | DEFINE_bool(strip_lto_sections, options::TWO_DASHES, '\0', true, |
1068 | N_("Strip LTO intermediate code sections"), NULL); | |
ee1fe73e | 1069 | |
c0a62865 | 1070 | DEFINE_int(stub_group_size, options::TWO_DASHES , '\0', 1, |
9e69ed50 AM |
1071 | N_("(ARM, PowerPC only) The maximum distance from instructions " |
1072 | "in a group of sections to their stubs. Negative values mean " | |
1073 | "stubs are always after (PowerPC before) the group. 1 means " | |
1074 | "use default size.\n"), | |
c0a62865 DK |
1075 | N_("SIZE")); |
1076 | ||
f773f3d2 CC |
1077 | DEFINE_bool(no_keep_memory, options::TWO_DASHES, '\0', false, |
1078 | N_("Use less memory and more disk I/O " | |
1079 | "(included only for compatibility with GNU ld)"), NULL); | |
3b293544 | 1080 | |
fe35d28d | 1081 | DEFINE_bool(shared, options::ONE_DASH, 'G', false, |
a4d4b13f | 1082 | N_("Generate shared library"), NULL); |
ee1fe73e | 1083 | |
3b293544 CF |
1084 | DEFINE_bool(Bshareable, options::ONE_DASH, '\0', false, |
1085 | N_("Generate shared library"), NULL); | |
1086 | ||
364c7fa5 ILT |
1087 | DEFINE_uint(split_stack_adjust_size, options::TWO_DASHES, '\0', 0x4000, |
1088 | N_("Stack size when -fsplit-stack function calls non-split"), | |
1089 | N_("SIZE")); | |
1090 | ||
ee1fe73e ILT |
1091 | // This is not actually special in any way, but I need to give it |
1092 | // a non-standard accessor-function name because 'static' is a keyword. | |
1093 | DEFINE_special(static, options::ONE_DASH, '\0', | |
a4d4b13f | 1094 | N_("Do not link against shared libraries"), NULL); |
ee1fe73e | 1095 | |
032ce4e9 ST |
1096 | DEFINE_enum(icf, options::TWO_DASHES, '\0', "none", |
1097 | N_("Identical Code Folding. " | |
21bb3914 ST |
1098 | "\'--icf=safe\' Folds ctors, dtors and functions whose" |
1099 | " pointers are definitely not taken."), | |
032ce4e9 ST |
1100 | ("[none,all,safe]"), |
1101 | {"none", "all", "safe"}); | |
ef15dade ST |
1102 | |
1103 | DEFINE_uint(icf_iterations, options::TWO_DASHES , '\0', 0, | |
1104 | N_("Number of iterations of ICF (default 2)"), N_("COUNT")); | |
1105 | ||
1106 | DEFINE_bool(print_icf_sections, options::TWO_DASHES, '\0', false, | |
1107 | N_("List folded identical sections on stderr"), | |
1108 | N_("Do not list folded identical sections")); | |
1109 | ||
48c187ce ST |
1110 | DEFINE_set(keep_unique, options::TWO_DASHES, '\0', |
1111 | N_("Do not fold this symbol during ICF"), N_("SYMBOL")); | |
1112 | ||
6d03d481 | 1113 | DEFINE_bool(gc_sections, options::TWO_DASHES, '\0', false, |
266d0a74 | 1114 | N_("Remove unused sections"), |
6d03d481 | 1115 | N_("Don't remove unused sections (default)")); |
266d0a74 | 1116 | |
6d03d481 | 1117 | DEFINE_bool(print_gc_sections, options::TWO_DASHES, '\0', false, |
266d0a74 | 1118 | N_("List removed unused sections on stderr"), |
6d03d481 ST |
1119 | N_("Do not list removed unused sections")); |
1120 | ||
ee1fe73e | 1121 | DEFINE_bool(stats, options::TWO_DASHES, '\0', false, |
a4d4b13f | 1122 | N_("Print resource usage statistics"), NULL); |
ee1fe73e ILT |
1123 | |
1124 | DEFINE_string(sysroot, options::TWO_DASHES, '\0', "", | |
a4d4b13f | 1125 | N_("Set target system root directory"), N_("DIR")); |
ee1fe73e | 1126 | |
c5818ff1 CC |
1127 | DEFINE_bool(trace, options::TWO_DASHES, 't', false, |
1128 | N_("Print the name of each input file"), NULL); | |
1129 | ||
ee1fe73e | 1130 | DEFINE_special(script, options::TWO_DASHES, 'T', |
a4d4b13f | 1131 | N_("Read linker script"), N_("FILE")); |
ee1fe73e ILT |
1132 | |
1133 | DEFINE_bool(threads, options::TWO_DASHES, '\0', false, | |
a4d4b13f ILT |
1134 | N_("Run the linker multi-threaded"), |
1135 | N_("Do not run the linker multi-threaded")); | |
ee1fe73e | 1136 | DEFINE_uint(thread_count, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 1137 | N_("Number of threads to use"), N_("COUNT")); |
ee1fe73e | 1138 | DEFINE_uint(thread_count_initial, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 1139 | N_("Number of threads to use in initial pass"), N_("COUNT")); |
ee1fe73e | 1140 | DEFINE_uint(thread_count_middle, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 1141 | N_("Number of threads to use in middle pass"), N_("COUNT")); |
ee1fe73e | 1142 | DEFINE_uint(thread_count_final, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 1143 | N_("Number of threads to use in final pass"), N_("COUNT")); |
ee1fe73e | 1144 | |
fee2edb1 ILT |
1145 | DEFINE_uint64(Tbss, options::ONE_DASH, '\0', -1U, |
1146 | N_("Set the address of the bss segment"), N_("ADDRESS")); | |
1147 | DEFINE_uint64(Tdata, options::ONE_DASH, '\0', -1U, | |
1148 | N_("Set the address of the data segment"), N_("ADDRESS")); | |
1149 | DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U, | |
1150 | N_("Set the address of the text segment"), N_("ADDRESS")); | |
214383dd ILT |
1151 | DEFINE_uint64_alias(Ttext_segment, Ttext, options::ONE_DASH, '\0', |
1152 | N_("Set the address of the text segment"), | |
1153 | N_("ADDRESS")); | |
fee2edb1 | 1154 | |
d8f5a274 AM |
1155 | DEFINE_bool(toc_optimize, options::TWO_DASHES, '\0', true, |
1156 | N_("(PowerPC64 only) Optimize TOC code sequences"), | |
1157 | N_("(PowerPC64 only) Don't optimize TOC code sequences")); | |
1158 | ||
1159 | DEFINE_bool(toc_sort, options::TWO_DASHES, '\0', true, | |
1160 | N_("(PowerPC64 only) Sort TOC and GOT sections"), | |
1161 | N_("(PowerPC64 only) Don't sort TOC and GOT sections")); | |
aba6bc71 | 1162 | |
f3e9c5c5 ILT |
1163 | DEFINE_set(undefined, options::TWO_DASHES, 'u', |
1164 | N_("Create undefined reference to SYMBOL"), N_("SYMBOL")); | |
2b706932 | 1165 | |
beabb2c6 ILT |
1166 | DEFINE_enum(unresolved_symbols, options::TWO_DASHES, '\0', NULL, |
1167 | N_("How to handle unresolved symbols"), | |
1168 | ("ignore-all,report-all,ignore-in-object-files," | |
1169 | "ignore-in-shared-libs"), | |
1170 | {"ignore-all", "report-all", "ignore-in-object-files", | |
1171 | "ignore-in-shared-libs"}); | |
1172 | ||
2285a610 ILT |
1173 | DEFINE_bool(verbose, options::TWO_DASHES, '\0', false, |
1174 | N_("Synonym for --debug=files"), NULL); | |
1175 | ||
fee2edb1 ILT |
1176 | DEFINE_special(version_script, options::TWO_DASHES, '\0', |
1177 | N_("Read version script"), N_("FILE")); | |
1178 | ||
1ae4d23b ILT |
1179 | DEFINE_bool(warn_common, options::TWO_DASHES, '\0', false, |
1180 | N_("Warn about duplicate common symbols"), | |
1181 | N_("Do not warn about duplicate common symbols (default)")); | |
1182 | ||
37a9ac43 ILT |
1183 | DEFINE_bool(warn_constructors, options::TWO_DASHES, '\0', false, |
1184 | N_("Ignored"), N_("Ignored")); | |
1185 | ||
83e17bd5 CC |
1186 | DEFINE_bool(warn_execstack, options::TWO_DASHES, '\0', false, |
1187 | N_("Warn if the stack is executable"), | |
1188 | N_("Do not warn if the stack is executable (default)")); | |
1189 | ||
7296d933 DK |
1190 | DEFINE_bool(warn_mismatch, options::TWO_DASHES, '\0', true, |
1191 | NULL, N_("Don't warn about mismatched input files")); | |
1192 | ||
6eda8c29 ILT |
1193 | DEFINE_bool(warn_multiple_gp, options::TWO_DASHES, '\0', false, |
1194 | N_("Ignored"), NULL); | |
1195 | ||
15f8229b ILT |
1196 | DEFINE_bool(warn_search_mismatch, options::TWO_DASHES, '\0', true, |
1197 | N_("Warn when skipping an incompatible library"), | |
1198 | N_("Don't warn when skipping an incompatible library")); | |
1199 | ||
b9674e17 ILT |
1200 | DEFINE_bool(warn_shared_textrel, options::TWO_DASHES, '\0', false, |
1201 | N_("Warn if text segment is not shareable"), | |
1202 | N_("Do not warn if text segment is not shareable (default)")); | |
1203 | ||
dc3f80fe ILT |
1204 | DEFINE_bool(warn_unresolved_symbols, options::TWO_DASHES, '\0', false, |
1205 | N_("Report unresolved symbols as warnings"), | |
1206 | NULL); | |
1207 | DEFINE_bool_alias(error_unresolved_symbols, warn_unresolved_symbols, | |
1208 | options::TWO_DASHES, '\0', | |
1209 | N_("Report unresolved symbols as errors"), | |
1210 | NULL, true); | |
1211 | ||
ce0d1972 DK |
1212 | DEFINE_bool(wchar_size_warning, options::TWO_DASHES, '\0', true, NULL, |
1213 | N_("(ARM only) Do not warn about objects with incompatible " | |
1214 | "wchar_t sizes")); | |
1215 | ||
ee1fe73e | 1216 | DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
1217 | N_("Include all archive contents"), |
1218 | N_("Include only needed archive contents")); | |
ee1fe73e | 1219 | |
c5818ff1 CC |
1220 | DEFINE_set(wrap, options::TWO_DASHES, '\0', |
1221 | N_("Use wrapper functions for SYMBOL"), N_("SYMBOL")); | |
1222 | ||
1223 | DEFINE_set(trace_symbol, options::TWO_DASHES, 'y', | |
1224 | N_("Trace references to symbol"), N_("SYMBOL")); | |
0864d551 | 1225 | |
62dfdd4d ILT |
1226 | DEFINE_bool(undefined_version, options::TWO_DASHES, '\0', true, |
1227 | N_("Allow unused version in script (default)"), | |
1228 | N_("Do not allow unused version in script")); | |
1229 | ||
706e1f5e ILT |
1230 | DEFINE_string(Y, options::EXACTLY_ONE_DASH, 'Y', "", |
1231 | N_("Default search path for Solaris compatibility"), | |
1232 | N_("PATH")); | |
1233 | ||
ee1fe73e | 1234 | DEFINE_special(start_group, options::TWO_DASHES, '(', |
a4d4b13f | 1235 | N_("Start a library search group"), NULL); |
ee1fe73e | 1236 | DEFINE_special(end_group, options::TWO_DASHES, ')', |
a4d4b13f | 1237 | N_("End a library search group"), NULL); |
ee1fe73e | 1238 | |
b0193076 RÁE |
1239 | |
1240 | DEFINE_special(start_lib, options::TWO_DASHES, '\0', | |
1241 | N_("Start a library"), NULL); | |
1242 | DEFINE_special(end_lib, options::TWO_DASHES, '\0', | |
1243 | N_("End a library "), NULL); | |
1244 | ||
4f46f626 L |
1245 | DEFINE_string(fuse_ld, options::ONE_DASH, '\0', "", |
1246 | N_("Ignored for GCC linker option compatibility"), | |
1247 | ""); | |
1248 | ||
fee2edb1 | 1249 | // The -z options. |
ee1fe73e | 1250 | |
d98bc257 ILT |
1251 | DEFINE_bool(combreloc, options::DASH_Z, '\0', true, |
1252 | N_("Sort dynamic relocs"), | |
1253 | N_("Do not sort dynamic relocs")); | |
fee2edb1 ILT |
1254 | DEFINE_uint64(common_page_size, options::DASH_Z, '\0', 0, |
1255 | N_("Set common page size to SIZE"), N_("SIZE")); | |
eb42429a ILT |
1256 | DEFINE_bool(defs, options::DASH_Z, '\0', false, |
1257 | N_("Report undefined symbols (even with --shared)"), | |
1258 | NULL); | |
ee1fe73e | 1259 | DEFINE_bool(execstack, options::DASH_Z, '\0', false, |
a4d4b13f | 1260 | N_("Mark output as requiring executable stack"), NULL); |
7c414435 DM |
1261 | DEFINE_bool(initfirst, options::DASH_Z, '\0', false, |
1262 | N_("Mark DSO to be initialized first at runtime"), | |
1263 | NULL); | |
1264 | DEFINE_bool(interpose, options::DASH_Z, '\0', false, | |
1265 | N_("Mark object to interpose all DSOs but executable"), | |
1266 | NULL); | |
6a9da32a CC |
1267 | DEFINE_bool_alias(lazy, now, options::DASH_Z, '\0', |
1268 | N_("Mark object for lazy runtime binding (default)"), | |
1269 | NULL, true); | |
7c414435 DM |
1270 | DEFINE_bool(loadfltr, options::DASH_Z, '\0', false, |
1271 | N_("Mark object requiring immediate process"), | |
1272 | NULL); | |
e1c74d60 ILT |
1273 | DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0, |
1274 | N_("Set maximum page size to SIZE"), N_("SIZE")); | |
30bc8c46 ILT |
1275 | DEFINE_bool(muldefs, options::DASH_Z, '\0', false, |
1276 | N_("Allow multiple definitions of symbols"), | |
1277 | NULL); | |
1278 | // copyreloc is here in the list because there is only -z | |
1279 | // nocopyreloc, not -z copyreloc. | |
966d4097 DK |
1280 | DEFINE_bool(copyreloc, options::DASH_Z, '\0', true, |
1281 | NULL, | |
1282 | N_("Do not create copy relocs")); | |
7c414435 DM |
1283 | DEFINE_bool(nodefaultlib, options::DASH_Z, '\0', false, |
1284 | N_("Mark object not to use default search paths"), | |
1285 | NULL); | |
1286 | DEFINE_bool(nodelete, options::DASH_Z, '\0', false, | |
1287 | N_("Mark DSO non-deletable at runtime"), | |
1288 | NULL); | |
1289 | DEFINE_bool(nodlopen, options::DASH_Z, '\0', false, | |
1290 | N_("Mark DSO not available to dlopen"), | |
1291 | NULL); | |
1292 | DEFINE_bool(nodump, options::DASH_Z, '\0', false, | |
1293 | N_("Mark DSO not available to dldump"), | |
1294 | NULL); | |
e1c74d60 ILT |
1295 | DEFINE_bool(noexecstack, options::DASH_Z, '\0', false, |
1296 | N_("Mark output as not requiring executable stack"), NULL); | |
1297 | DEFINE_bool(now, options::DASH_Z, '\0', false, | |
1298 | N_("Mark object for immediate function binding"), | |
1299 | NULL); | |
7be8330a CD |
1300 | DEFINE_bool(origin, options::DASH_Z, '\0', false, |
1301 | N_("Mark DSO to indicate that needs immediate $ORIGIN " | |
1302 | "processing at runtime"), NULL); | |
e1c74d60 ILT |
1303 | DEFINE_bool(relro, options::DASH_Z, '\0', false, |
1304 | N_("Where possible mark variables read-only after relocation"), | |
1305 | N_("Don't mark variables read-only after relocation")); | |
ffeef7df ILT |
1306 | DEFINE_bool(text, options::DASH_Z, '\0', false, |
1307 | N_("Do not permit relocations in read-only segments"), | |
611062c0 | 1308 | N_("Permit relocations in read-only segments (default)")); |
ffeef7df ILT |
1309 | DEFINE_bool_alias(textoff, text, options::DASH_Z, '\0', |
1310 | N_("Permit relocations in read-only segments (default)"), | |
1311 | NULL, true); | |
bae7f79e | 1312 | |
ee1fe73e ILT |
1313 | public: |
1314 | typedef options::Dir_list Dir_list; | |
ca3a67a5 | 1315 | |
ee1fe73e | 1316 | General_options(); |
61ba1cf9 | 1317 | |
ee1fe73e ILT |
1318 | // Does post-processing on flags, making sure they all have |
1319 | // non-conflicting values. Also converts some flags from their | |
1320 | // "standard" types (string, etc), to another type (enum, DirList), | |
1321 | // which can be accessed via a separate method. Dies if it notices | |
1322 | // any problems. | |
1323 | void finalize(); | |
516cb3d0 | 1324 | |
459c9f1c ILT |
1325 | // True if we printed the version information. |
1326 | bool | |
1327 | printed_version() const | |
1328 | { return this->printed_version_; } | |
1329 | ||
ee1fe73e ILT |
1330 | // The macro defines output() (based on --output), but that's a |
1331 | // generic name. Provide this alternative name, which is clearer. | |
8851ecca | 1332 | const char* |
ee1fe73e ILT |
1333 | output_file_name() const |
1334 | { return this->output(); } | |
92e059d8 | 1335 | |
8851ecca ILT |
1336 | // This is not defined via a flag, but combines flags to say whether |
1337 | // the output is position-independent or not. | |
1338 | bool | |
1339 | output_is_position_independent() const | |
374ad285 | 1340 | { return this->shared() || this->pie(); } |
8851ecca | 1341 | |
183fd0e3 AO |
1342 | // Return true if the output is something that can be exec()ed, such |
1343 | // as a static executable, or a position-dependent or | |
1344 | // position-independent executable, but not a dynamic library or an | |
1345 | // object file. | |
1346 | bool | |
1347 | output_is_executable() const | |
374ad285 | 1348 | { return !this->shared() && !this->relocatable(); } |
183fd0e3 | 1349 | |
ee1fe73e ILT |
1350 | // This would normally be static(), and defined automatically, but |
1351 | // since static is a keyword, we need to come up with our own name. | |
bae7f79e ILT |
1352 | bool |
1353 | is_static() const | |
ee1fe73e | 1354 | { return static_; } |
756ac4a8 | 1355 | |
ee1fe73e ILT |
1356 | // In addition to getting the input and output formats as a string |
1357 | // (via format() and oformat()), we also give access as an enum. | |
1358 | enum Object_format | |
1359 | { | |
1360 | // Ordinary ELF. | |
1361 | OBJECT_FORMAT_ELF, | |
1362 | // Straight binary format. | |
1363 | OBJECT_FORMAT_BINARY | |
1364 | }; | |
fe9a4c12 | 1365 | |
e6a307ba ILT |
1366 | // Convert a string to an Object_format. Gives an error if the |
1367 | // string is not recognized. | |
1368 | static Object_format | |
1369 | string_to_object_format(const char* arg); | |
1370 | ||
ee1fe73e ILT |
1371 | // Note: these functions are not very fast. |
1372 | Object_format format_enum() const; | |
1373 | Object_format oformat_enum() const; | |
fe9a4c12 | 1374 | |
fd9d194f ILT |
1375 | // Return whether FILENAME is in a system directory. |
1376 | bool | |
1377 | is_in_system_directory(const std::string& name) const; | |
1378 | ||
8c604651 CS |
1379 | // RETURN whether SYMBOL_NAME should be kept, according to symbols_to_retain_. |
1380 | bool | |
1381 | should_retain_symbol(const char* symbol_name) const | |
1382 | { | |
1383 | if (symbols_to_retain_.empty()) // means flag wasn't specified | |
1384 | return true; | |
1385 | return symbols_to_retain_.find(symbol_name) != symbols_to_retain_.end(); | |
1386 | } | |
1387 | ||
ee1fe73e ILT |
1388 | // These are the best way to get access to the execstack state, |
1389 | // not execstack() and noexecstack() which are hard to use properly. | |
35cdfc9a ILT |
1390 | bool |
1391 | is_execstack_set() const | |
ee1fe73e | 1392 | { return this->execstack_status_ != EXECSTACK_FROM_INPUT; } |
35cdfc9a ILT |
1393 | |
1394 | bool | |
1395 | is_stack_executable() const | |
ee1fe73e | 1396 | { return this->execstack_status_ == EXECSTACK_YES; } |
c7912668 | 1397 | |
032ce4e9 ST |
1398 | bool |
1399 | icf_enabled() const | |
1400 | { return this->icf_status_ != ICF_NONE; } | |
1401 | ||
1402 | bool | |
1403 | icf_safe_folding() const | |
1404 | { return this->icf_status_ == ICF_SAFE; } | |
1405 | ||
086a1841 ILT |
1406 | // The --demangle option takes an optional string, and there is also |
1407 | // a --no-demangle option. This is the best way to decide whether | |
1408 | // to demangle or not. | |
1409 | bool | |
1410 | do_demangle() const | |
1411 | { return this->do_demangle_; } | |
1412 | ||
89fc3421 CC |
1413 | // Returns TRUE if any plugin libraries have been loaded. |
1414 | bool | |
1415 | has_plugins() const | |
1416 | { return this->plugins_ != NULL; } | |
1417 | ||
1418 | // Return a pointer to the plugin manager. | |
1419 | Plugin_manager* | |
1420 | plugins() const | |
1421 | { return this->plugins_; } | |
1422 | ||
c82fbeee CS |
1423 | // True iff SYMBOL was found in the file specified by dynamic-list. |
1424 | bool | |
1425 | in_dynamic_list(const char* symbol) const | |
1426 | { return this->dynamic_list_.version_script_info()->symbol_is_local(symbol); } | |
1427 | ||
6affe781 ILT |
1428 | // Finalize the dynamic list. |
1429 | void | |
1430 | finalize_dynamic_list() | |
1431 | { this->dynamic_list_.version_script_info()->finalize(); } | |
1432 | ||
8c21d9d3 CC |
1433 | // The mode selected by the --incremental options. |
1434 | enum Incremental_mode | |
1435 | { | |
1436 | // No incremental linking (--no-incremental). | |
1437 | INCREMENTAL_OFF, | |
1438 | // Incremental update only (--incremental-update). | |
1439 | INCREMENTAL_UPDATE, | |
1440 | // Force a full link, but prepare for subsequent incremental link | |
1441 | // (--incremental-full). | |
1442 | INCREMENTAL_FULL, | |
1443 | // Incremental update if possible, fallback to full link (--incremental). | |
1444 | INCREMENTAL_AUTO | |
1445 | }; | |
1446 | ||
1447 | // The incremental linking mode. | |
1448 | Incremental_mode | |
1449 | incremental_mode() const | |
1450 | { return this->incremental_mode_; } | |
1451 | ||
266d0a74 ILT |
1452 | // The disposition given by the --incremental-changed, |
1453 | // --incremental-unchanged or --incremental-unknown option. The | |
1454 | // value may change as we proceed parsing the command line flags. | |
1455 | Incremental_disposition | |
1456 | incremental_disposition() const | |
1457 | { return this->incremental_disposition_; } | |
1458 | ||
221597a5 CC |
1459 | // The disposition to use for startup files (those that precede the |
1460 | // first --incremental-changed, etc. option). | |
1461 | Incremental_disposition | |
1462 | incremental_startup_disposition() const | |
1463 | { return this->incremental_startup_disposition_; } | |
1464 | ||
65514900 CC |
1465 | // Return true if S is the name of a library excluded from automatic |
1466 | // symbol export. | |
1467 | bool | |
ca09d69a | 1468 | check_excluded_libs(const std::string &s) const; |
65514900 | 1469 | |
a192ba05 ILT |
1470 | // If an explicit start address was given for section SECNAME with |
1471 | // the --section-start option, return true and set *PADDR to the | |
1472 | // address. Otherwise return false. | |
1473 | bool | |
1474 | section_start(const char* secname, uint64_t* paddr) const; | |
1475 | ||
ea0d8c47 ILT |
1476 | // Return whether any --section-start option was used. |
1477 | bool | |
1478 | any_section_start() const | |
1479 | { return !this->section_starts_.empty(); } | |
1480 | ||
9b2fd367 DK |
1481 | enum Fix_v4bx |
1482 | { | |
1483 | // Leave original instruction. | |
1484 | FIX_V4BX_NONE, | |
1485 | // Replace instruction. | |
1486 | FIX_V4BX_REPLACE, | |
1487 | // Generate an interworking veneer. | |
1488 | FIX_V4BX_INTERWORKING | |
1489 | }; | |
1490 | ||
1491 | Fix_v4bx | |
1492 | fix_v4bx() const | |
1493 | { return (this->fix_v4bx_); } | |
1494 | ||
7296d933 DK |
1495 | enum Endianness |
1496 | { | |
1497 | ENDIANNESS_NOT_SET, | |
1498 | ENDIANNESS_BIG, | |
1499 | ENDIANNESS_LITTLE | |
1500 | }; | |
1501 | ||
1502 | Endianness | |
1503 | endianness() const | |
1504 | { return this->endianness_; } | |
1505 | ||
bae7f79e | 1506 | private: |
dbe717ef ILT |
1507 | // Don't copy this structure. |
1508 | General_options(const General_options&); | |
1509 | General_options& operator=(const General_options&); | |
1510 | ||
35cdfc9a ILT |
1511 | // Whether to mark the stack as executable. |
1512 | enum Execstack | |
1513 | { | |
1514 | // Not set on command line. | |
1515 | EXECSTACK_FROM_INPUT, | |
ee1fe73e | 1516 | // Mark the stack as executable (-z execstack). |
35cdfc9a | 1517 | EXECSTACK_YES, |
ee1fe73e | 1518 | // Mark the stack as not executable (-z noexecstack). |
35cdfc9a ILT |
1519 | EXECSTACK_NO |
1520 | }; | |
1521 | ||
032ce4e9 ST |
1522 | enum Icf_status |
1523 | { | |
1524 | // Do not fold any functions (Default or --icf=none). | |
1525 | ICF_NONE, | |
1526 | // All functions are candidates for folding. (--icf=all). | |
1527 | ICF_ALL, | |
1528 | // Only ctors and dtors are candidates for folding. (--icf=safe). | |
1529 | ICF_SAFE | |
1530 | }; | |
1531 | ||
1532 | void | |
1533 | set_icf_status(Icf_status value) | |
1534 | { this->icf_status_ = value; } | |
1535 | ||
92e059d8 | 1536 | void |
ee1fe73e | 1537 | set_execstack_status(Execstack value) |
086a1841 ILT |
1538 | { this->execstack_status_ = value; } |
1539 | ||
1540 | void | |
1541 | set_do_demangle(bool value) | |
1542 | { this->do_demangle_ = value; } | |
92e059d8 | 1543 | |
bae7f79e | 1544 | void |
45aa233b | 1545 | set_static(bool value) |
ee1fe73e | 1546 | { static_ = value; } |
652ec9bd | 1547 | |
ee1fe73e | 1548 | // These are called by finalize() to set up the search-path correctly. |
35cdfc9a | 1549 | void |
3f3cddf1 | 1550 | add_to_library_path_with_sysroot(const std::string& arg) |
ee1fe73e | 1551 | { this->add_search_directory_to_library_path(Search_directory(arg, true)); } |
c7912668 | 1552 | |
ad2d6943 ILT |
1553 | // Apply any sysroot to the directory lists. |
1554 | void | |
1555 | add_sysroot(); | |
086a1841 | 1556 | |
89fc3421 CC |
1557 | // Add a plugin and its arguments to the list of plugins. |
1558 | void | |
ca09d69a | 1559 | add_plugin(const char* filename); |
4674ecfc CC |
1560 | |
1561 | // Add a plugin option. | |
1562 | void | |
1563 | add_plugin_option(const char* opt); | |
89fc3421 | 1564 | |
459c9f1c ILT |
1565 | // Whether we printed version information. |
1566 | bool printed_version_; | |
086a1841 ILT |
1567 | // Whether to mark the stack as executable. |
1568 | Execstack execstack_status_; | |
032ce4e9 ST |
1569 | // Whether to do code folding. |
1570 | Icf_status icf_status_; | |
086a1841 ILT |
1571 | // Whether to do a static link. |
1572 | bool static_; | |
1573 | // Whether to do demangling. | |
1574 | bool do_demangle_; | |
89fc3421 CC |
1575 | // List of plugin libraries. |
1576 | Plugin_manager* plugins_; | |
c82fbeee CS |
1577 | // The parsed output of --dynamic-list files. For convenience in |
1578 | // script.cc, we store this as a Script_options object, even though | |
1579 | // we only use a single Version_tree from it. | |
1580 | Script_options dynamic_list_; | |
8c21d9d3 CC |
1581 | // The incremental linking mode. |
1582 | Incremental_mode incremental_mode_; | |
266d0a74 ILT |
1583 | // The disposition given by the --incremental-changed, |
1584 | // --incremental-unchanged or --incremental-unknown option. The | |
1585 | // value may change as we proceed parsing the command line flags. | |
1586 | Incremental_disposition incremental_disposition_; | |
221597a5 CC |
1587 | // The disposition to use for startup files (those marked |
1588 | // INCREMENTAL_STARTUP). | |
1589 | Incremental_disposition incremental_startup_disposition_; | |
459c9f1c | 1590 | // Whether we have seen one of the options that require incremental |
221597a5 CC |
1591 | // build (--incremental-changed, --incremental-unchanged, |
1592 | // --incremental-unknown, or --incremental-startup-unchanged). | |
266d0a74 | 1593 | bool implicit_incremental_; |
8c604651 | 1594 | // Libraries excluded from automatic export, via --exclude-libs. |
65514900 | 1595 | Unordered_set<std::string> excluded_libs_; |
8c604651 CS |
1596 | // List of symbol-names to keep, via -retain-symbol-info. |
1597 | Unordered_set<std::string> symbols_to_retain_; | |
a192ba05 ILT |
1598 | // Map from section name to address from --section-start. |
1599 | std::map<std::string, uint64_t> section_starts_; | |
9b2fd367 DK |
1600 | // Whether to process armv4 bx instruction relocation. |
1601 | Fix_v4bx fix_v4bx_; | |
7296d933 DK |
1602 | // Endianness. |
1603 | Endianness endianness_; | |
bae7f79e ILT |
1604 | }; |
1605 | ||
ee1fe73e ILT |
1606 | // The position-dependent options. We use this to store the state of |
1607 | // the commandline at a particular point in parsing for later | |
1608 | // reference. For instance, if we see "ld --whole-archive foo.a | |
1609 | // --no-whole-archive," we want to store the whole-archive option with | |
1610 | // foo.a, so when the time comes to parse foo.a we know we should do | |
1611 | // it in whole-archive mode. We could store all of General_options, | |
1612 | // but that's big, so we just pick the subset of flags that actually | |
1613 | // change in a position-dependent way. | |
1614 | ||
1615 | #define DEFINE_posdep(varname__, type__) \ | |
1616 | public: \ | |
1617 | type__ \ | |
1618 | varname__() const \ | |
1619 | { return this->varname__##_; } \ | |
1620 | \ | |
1621 | void \ | |
1622 | set_##varname__(type__ value) \ | |
1623 | { this->varname__##_ = value; } \ | |
1624 | private: \ | |
1625 | type__ varname__##_ | |
bae7f79e ILT |
1626 | |
1627 | class Position_dependent_options | |
1628 | { | |
1629 | public: | |
ee1fe73e ILT |
1630 | Position_dependent_options(const General_options& options |
1631 | = Position_dependent_options::default_options_) | |
1632 | { copy_from_options(options); } | |
bae7f79e | 1633 | |
ee1fe73e ILT |
1634 | void copy_from_options(const General_options& options) |
1635 | { | |
1636 | this->set_as_needed(options.as_needed()); | |
1637 | this->set_Bdynamic(options.Bdynamic()); | |
1638 | this->set_format_enum(options.format_enum()); | |
1639 | this->set_whole_archive(options.whole_archive()); | |
266d0a74 | 1640 | this->set_incremental_disposition(options.incremental_disposition()); |
ee1fe73e | 1641 | } |
bc644c6c | 1642 | |
ee1fe73e ILT |
1643 | DEFINE_posdep(as_needed, bool); |
1644 | DEFINE_posdep(Bdynamic, bool); | |
1645 | DEFINE_posdep(format_enum, General_options::Object_format); | |
1646 | DEFINE_posdep(whole_archive, bool); | |
266d0a74 | 1647 | DEFINE_posdep(incremental_disposition, Incremental_disposition); |
7cc619c3 | 1648 | |
dbe717ef | 1649 | private: |
ee1fe73e ILT |
1650 | // This is a General_options with everything set to its default |
1651 | // value. A Position_dependent_options created with no argument | |
1652 | // will take its values from here. | |
1653 | static General_options default_options_; | |
bae7f79e ILT |
1654 | }; |
1655 | ||
ee1fe73e | 1656 | |
bae7f79e ILT |
1657 | // A single file or library argument from the command line. |
1658 | ||
ead1e424 | 1659 | class Input_file_argument |
bae7f79e ILT |
1660 | { |
1661 | public: | |
ae3b5189 CD |
1662 | enum Input_file_type |
1663 | { | |
1664 | // A regular file, name used as-is, not searched. | |
1665 | INPUT_FILE_TYPE_FILE, | |
1666 | // A library name. When used, "lib" will be prepended and ".so" or | |
1667 | // ".a" appended to make a filename, and that filename will be searched | |
1668 | // for using the -L paths. | |
1669 | INPUT_FILE_TYPE_LIBRARY, | |
1670 | // A regular file, name used as-is, but searched using the -L paths. | |
1671 | INPUT_FILE_TYPE_SEARCHED_FILE | |
1672 | }; | |
1673 | ||
51dee2fe | 1674 | // name: file name or library name |
ae3b5189 | 1675 | // type: the type of this input file. |
51dee2fe ILT |
1676 | // extra_search_path: an extra directory to look for the file, prior |
1677 | // to checking the normal library search path. If this is "", | |
1678 | // then no extra directory is added. | |
88dd47ac | 1679 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 1680 | // options: The position dependent options at this point in the |
ad2d6943 | 1681 | // command line, such as --whole-archive. |
ead1e424 | 1682 | Input_file_argument() |
ae3b5189 | 1683 | : name_(), type_(INPUT_FILE_TYPE_FILE), extra_search_path_(""), |
cdc29364 | 1684 | just_symbols_(false), options_(), arg_serial_(0) |
ead1e424 ILT |
1685 | { } |
1686 | ||
2ea97941 ILT |
1687 | Input_file_argument(const char* name, Input_file_type type, |
1688 | const char* extra_search_path, | |
1689 | bool just_symbols, | |
1690 | const Position_dependent_options& options) | |
1691 | : name_(name), type_(type), extra_search_path_(extra_search_path), | |
cdc29364 | 1692 | just_symbols_(just_symbols), options_(options), arg_serial_(0) |
ee1fe73e ILT |
1693 | { } |
1694 | ||
1695 | // You can also pass in a General_options instance instead of a | |
1696 | // Position_dependent_options. In that case, we extract the | |
1697 | // position-independent vars from the General_options and only store | |
1698 | // those. | |
2ea97941 ILT |
1699 | Input_file_argument(const char* name, Input_file_type type, |
1700 | const char* extra_search_path, | |
1701 | bool just_symbols, | |
1702 | const General_options& options) | |
1703 | : name_(name), type_(type), extra_search_path_(extra_search_path), | |
cdc29364 | 1704 | just_symbols_(just_symbols), options_(options), arg_serial_(0) |
bae7f79e ILT |
1705 | { } |
1706 | ||
1707 | const char* | |
1708 | name() const | |
dbe717ef | 1709 | { return this->name_.c_str(); } |
bae7f79e ILT |
1710 | |
1711 | const Position_dependent_options& | |
1712 | options() const | |
1713 | { return this->options_; } | |
1714 | ||
1715 | bool | |
1716 | is_lib() const | |
ae3b5189 CD |
1717 | { return type_ == INPUT_FILE_TYPE_LIBRARY; } |
1718 | ||
1719 | bool | |
1720 | is_searched_file() const | |
1721 | { return type_ == INPUT_FILE_TYPE_SEARCHED_FILE; } | |
bae7f79e | 1722 | |
51dee2fe ILT |
1723 | const char* |
1724 | extra_search_path() const | |
1725 | { | |
1726 | return (this->extra_search_path_.empty() | |
1727 | ? NULL | |
ee1fe73e | 1728 | : this->extra_search_path_.c_str()); |
51dee2fe ILT |
1729 | } |
1730 | ||
88dd47ac ILT |
1731 | // Return whether we should only read symbols from this file. |
1732 | bool | |
1733 | just_symbols() const | |
1734 | { return this->just_symbols_; } | |
1735 | ||
51dee2fe ILT |
1736 | // Return whether this file may require a search using the -L |
1737 | // options. | |
1738 | bool | |
1739 | may_need_search() const | |
ae3b5189 CD |
1740 | { |
1741 | return (this->is_lib() | |
1742 | || this->is_searched_file() | |
1743 | || !this->extra_search_path_.empty()); | |
1744 | } | |
51dee2fe | 1745 | |
cdc29364 CC |
1746 | // Set the serial number for this argument. |
1747 | void | |
1748 | set_arg_serial(unsigned int arg_serial) | |
1749 | { this->arg_serial_ = arg_serial; } | |
1750 | ||
1751 | // Get the serial number. | |
1752 | unsigned int | |
1753 | arg_serial() const | |
1754 | { return this->arg_serial_; } | |
1755 | ||
bae7f79e | 1756 | private: |
dbe717ef ILT |
1757 | // We use std::string, not const char*, here for convenience when |
1758 | // using script files, so that we do not have to preserve the string | |
1759 | // in that case. | |
1760 | std::string name_; | |
ae3b5189 | 1761 | Input_file_type type_; |
51dee2fe | 1762 | std::string extra_search_path_; |
88dd47ac | 1763 | bool just_symbols_; |
bae7f79e | 1764 | Position_dependent_options options_; |
cdc29364 CC |
1765 | // A unique index for this file argument in the argument list. |
1766 | unsigned int arg_serial_; | |
bae7f79e ILT |
1767 | }; |
1768 | ||
ead1e424 ILT |
1769 | // A file or library, or a group, from the command line. |
1770 | ||
1771 | class Input_argument | |
1772 | { | |
1773 | public: | |
1774 | // Create a file or library argument. | |
2ea97941 | 1775 | explicit Input_argument(Input_file_argument file) |
c7975edd | 1776 | : is_file_(true), file_(file), group_(NULL), lib_(NULL), script_info_(NULL) |
ead1e424 ILT |
1777 | { } |
1778 | ||
1779 | // Create a group argument. | |
2ea97941 | 1780 | explicit Input_argument(Input_file_group* group) |
c7975edd | 1781 | : is_file_(false), group_(group), lib_(NULL), script_info_(NULL) |
b0193076 RÁE |
1782 | { } |
1783 | ||
1784 | // Create a lib argument. | |
1785 | explicit Input_argument(Input_file_lib* lib) | |
c7975edd | 1786 | : is_file_(false), group_(NULL), lib_(lib), script_info_(NULL) |
ead1e424 ILT |
1787 | { } |
1788 | ||
1789 | // Return whether this is a file. | |
1790 | bool | |
1791 | is_file() const | |
1792 | { return this->is_file_; } | |
1793 | ||
1794 | // Return whether this is a group. | |
1795 | bool | |
1796 | is_group() const | |
b0193076 RÁE |
1797 | { return !this->is_file_ && this->lib_ == NULL; } |
1798 | ||
1799 | // Return whether this is a lib. | |
1800 | bool | |
1801 | is_lib() const | |
1802 | { return this->lib_ != NULL; } | |
ead1e424 ILT |
1803 | |
1804 | // Return the information about the file. | |
1805 | const Input_file_argument& | |
1806 | file() const | |
1807 | { | |
a3ad94ed | 1808 | gold_assert(this->is_file_); |
ead1e424 ILT |
1809 | return this->file_; |
1810 | } | |
1811 | ||
1812 | // Return the information about the group. | |
1813 | const Input_file_group* | |
1814 | group() const | |
1815 | { | |
a3ad94ed | 1816 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1817 | return this->group_; |
1818 | } | |
1819 | ||
1820 | Input_file_group* | |
1821 | group() | |
1822 | { | |
a3ad94ed | 1823 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1824 | return this->group_; |
1825 | } | |
1826 | ||
b0193076 RÁE |
1827 | // Return the information about the lib. |
1828 | const Input_file_lib* | |
1829 | lib() const | |
1830 | { | |
1831 | gold_assert(!this->is_file_); | |
1832 | gold_assert(this->lib_); | |
1833 | return this->lib_; | |
1834 | } | |
1835 | ||
1836 | Input_file_lib* | |
1837 | lib() | |
1838 | { | |
1839 | gold_assert(!this->is_file_); | |
1840 | gold_assert(this->lib_); | |
1841 | return this->lib_; | |
1842 | } | |
1843 | ||
c7975edd CC |
1844 | // If a script generated this argument, store a pointer to the script info. |
1845 | // Currently used only for recording incremental link information. | |
1846 | void | |
1847 | set_script_info(Script_info* info) | |
1848 | { this->script_info_ = info; } | |
1849 | ||
1850 | Script_info* | |
1851 | script_info() const | |
1852 | { return this->script_info_; } | |
1853 | ||
ead1e424 ILT |
1854 | private: |
1855 | bool is_file_; | |
1856 | Input_file_argument file_; | |
1857 | Input_file_group* group_; | |
b0193076 | 1858 | Input_file_lib* lib_; |
c7975edd | 1859 | Script_info* script_info_; |
ead1e424 ILT |
1860 | }; |
1861 | ||
072fe7ce ILT |
1862 | typedef std::vector<Input_argument> Input_argument_list; |
1863 | ||
ead1e424 ILT |
1864 | // A group from the command line. This is a set of arguments within |
1865 | // --start-group ... --end-group. | |
1866 | ||
1867 | class Input_file_group | |
92e059d8 | 1868 | { |
ead1e424 | 1869 | public: |
072fe7ce | 1870 | typedef Input_argument_list::const_iterator const_iterator; |
ead1e424 ILT |
1871 | |
1872 | Input_file_group() | |
1873 | : files_() | |
1874 | { } | |
1875 | ||
1876 | // Add a file to the end of the group. | |
c7975edd | 1877 | Input_argument& |
ead1e424 | 1878 | add_file(const Input_file_argument& arg) |
c7975edd CC |
1879 | { |
1880 | this->files_.push_back(Input_argument(arg)); | |
1881 | return this->files_.back(); | |
1882 | } | |
ead1e424 ILT |
1883 | |
1884 | // Iterators to iterate over the group contents. | |
1885 | ||
1886 | const_iterator | |
1887 | begin() const | |
1888 | { return this->files_.begin(); } | |
1889 | ||
1890 | const_iterator | |
1891 | end() const | |
1892 | { return this->files_.end(); } | |
1893 | ||
1894 | private: | |
072fe7ce | 1895 | Input_argument_list files_; |
92e059d8 ILT |
1896 | }; |
1897 | ||
b0193076 RÁE |
1898 | // A lib from the command line. This is a set of arguments within |
1899 | // --start-lib ... --end-lib. | |
1900 | ||
1901 | class Input_file_lib | |
1902 | { | |
1903 | public: | |
1904 | typedef Input_argument_list::const_iterator const_iterator; | |
1905 | ||
1906 | Input_file_lib(const Position_dependent_options& options) | |
1907 | : files_(), options_(options) | |
1908 | { } | |
1909 | ||
1910 | // Add a file to the end of the lib. | |
c7975edd | 1911 | Input_argument& |
b0193076 | 1912 | add_file(const Input_file_argument& arg) |
c7975edd CC |
1913 | { |
1914 | this->files_.push_back(Input_argument(arg)); | |
1915 | return this->files_.back(); | |
1916 | } | |
b0193076 RÁE |
1917 | |
1918 | const Position_dependent_options& | |
1919 | options() const | |
1920 | { return this->options_; } | |
1921 | ||
1922 | // Iterators to iterate over the lib contents. | |
1923 | ||
1924 | const_iterator | |
1925 | begin() const | |
1926 | { return this->files_.begin(); } | |
1927 | ||
1928 | const_iterator | |
1929 | end() const | |
1930 | { return this->files_.end(); } | |
1931 | ||
1932 | size_t | |
1933 | size() const | |
1934 | { return this->files_.size(); } | |
1935 | ||
1936 | private: | |
1937 | Input_argument_list files_; | |
1938 | Position_dependent_options options_; | |
1939 | }; | |
1940 | ||
dbe717ef ILT |
1941 | // A list of files from the command line or a script. |
1942 | ||
1943 | class Input_arguments | |
1944 | { | |
1945 | public: | |
dbe717ef ILT |
1946 | typedef Input_argument_list::const_iterator const_iterator; |
1947 | ||
1948 | Input_arguments() | |
cdc29364 | 1949 | : input_argument_list_(), in_group_(false), in_lib_(false), file_count_(0) |
dbe717ef ILT |
1950 | { } |
1951 | ||
1952 | // Add a file. | |
c7975edd | 1953 | Input_argument& |
cdc29364 | 1954 | add_file(Input_file_argument& arg); |
dbe717ef ILT |
1955 | |
1956 | // Start a group (the --start-group option). | |
1957 | void | |
1958 | start_group(); | |
1959 | ||
1960 | // End a group (the --end-group option). | |
1961 | void | |
1962 | end_group(); | |
1963 | ||
b0193076 RÁE |
1964 | // Start a lib (the --start-lib option). |
1965 | void | |
1966 | start_lib(const Position_dependent_options&); | |
1967 | ||
1968 | // End a lib (the --end-lib option). | |
1969 | void | |
1970 | end_lib(); | |
1971 | ||
dbe717ef ILT |
1972 | // Return whether we are currently in a group. |
1973 | bool | |
1974 | in_group() const | |
1975 | { return this->in_group_; } | |
1976 | ||
b0193076 RÁE |
1977 | // Return whether we are currently in a lib. |
1978 | bool | |
1979 | in_lib() const | |
1980 | { return this->in_lib_; } | |
1981 | ||
fe9a4c12 ILT |
1982 | // The number of entries in the list. |
1983 | int | |
1984 | size() const | |
1985 | { return this->input_argument_list_.size(); } | |
1986 | ||
dbe717ef ILT |
1987 | // Iterators to iterate over the list of input files. |
1988 | ||
1989 | const_iterator | |
1990 | begin() const | |
1991 | { return this->input_argument_list_.begin(); } | |
1992 | ||
1993 | const_iterator | |
1994 | end() const | |
1995 | { return this->input_argument_list_.end(); } | |
1996 | ||
1997 | // Return whether the list is empty. | |
1998 | bool | |
1999 | empty() const | |
2000 | { return this->input_argument_list_.empty(); } | |
2001 | ||
cdc29364 CC |
2002 | // Return the number of input files. This may be larger than |
2003 | // input_argument_list_.size(), because of files that are part | |
2004 | // of groups or libs. | |
2005 | int | |
2006 | number_of_input_files() const | |
2007 | { return this->file_count_; } | |
2008 | ||
dbe717ef ILT |
2009 | private: |
2010 | Input_argument_list input_argument_list_; | |
2011 | bool in_group_; | |
b0193076 | 2012 | bool in_lib_; |
cdc29364 | 2013 | unsigned int file_count_; |
dbe717ef ILT |
2014 | }; |
2015 | ||
ee1fe73e ILT |
2016 | |
2017 | // All the information read from the command line. These are held in | |
2018 | // three separate structs: one to hold the options (--foo), one to | |
2019 | // hold the filenames listed on the commandline, and one to hold | |
2020 | // linker script information. This third is not a subset of the other | |
2021 | // two because linker scripts can be specified either as options (via | |
2022 | // -T) or as a file. | |
bae7f79e ILT |
2023 | |
2024 | class Command_line | |
2025 | { | |
2026 | public: | |
ead1e424 ILT |
2027 | typedef Input_arguments::const_iterator const_iterator; |
2028 | ||
a5dc0706 | 2029 | Command_line(); |
bae7f79e ILT |
2030 | |
2031 | // Process the command line options. This will exit with an | |
2032 | // appropriate error message if an unrecognized option is seen. | |
2033 | void | |
ee1fe73e | 2034 | process(int argc, const char** argv); |
bae7f79e | 2035 | |
a0451b38 | 2036 | // Process one command-line option. This takes the index of argv to |
ee1fe73e ILT |
2037 | // process, and returns the index for the next option. no_more_options |
2038 | // is set to true if argv[i] is "--". | |
61ba1cf9 | 2039 | int |
ee1fe73e ILT |
2040 | process_one_option(int argc, const char** argv, int i, |
2041 | bool* no_more_options); | |
3c2fafa5 | 2042 | |
61ba1cf9 | 2043 | // Get the general options. |
bae7f79e ILT |
2044 | const General_options& |
2045 | options() const | |
2046 | { return this->options_; } | |
2047 | ||
3c2fafa5 ILT |
2048 | // Get the position dependent options. |
2049 | const Position_dependent_options& | |
2050 | position_dependent_options() const | |
2051 | { return this->position_options_; } | |
2052 | ||
a5dc0706 ILT |
2053 | // Get the linker-script options. |
2054 | Script_options& | |
e5756efb | 2055 | script_options() |
a5dc0706 | 2056 | { return this->script_options_; } |
e5756efb | 2057 | |
6affe781 | 2058 | // Finalize the version-script options and return them. |
a5dc0706 | 2059 | const Version_script_info& |
6affe781 | 2060 | version_script(); |
e5756efb | 2061 | |
ee1fe73e ILT |
2062 | // Get the input files. |
2063 | Input_arguments& | |
2064 | inputs() | |
2065 | { return this->inputs_; } | |
2066 | ||
fe9a4c12 ILT |
2067 | // The number of input files. |
2068 | int | |
2069 | number_of_input_files() const | |
cdc29364 | 2070 | { return this->inputs_.number_of_input_files(); } |
fe9a4c12 | 2071 | |
ead1e424 ILT |
2072 | // Iterators to iterate over the list of input files. |
2073 | ||
2074 | const_iterator | |
2075 | begin() const | |
2076 | { return this->inputs_.begin(); } | |
2077 | ||
2078 | const_iterator | |
2079 | end() const | |
2080 | { return this->inputs_.end(); } | |
bae7f79e ILT |
2081 | |
2082 | private: | |
ead1e424 ILT |
2083 | Command_line(const Command_line&); |
2084 | Command_line& operator=(const Command_line&); | |
2085 | ||
293c1386 CC |
2086 | // This is a dummy class to provide a constructor that runs before |
2087 | // the constructor for the General_options. The Pre_options constructor | |
2088 | // is used as a hook to set the flag enabling the options to register | |
2089 | // themselves. | |
2090 | struct Pre_options { | |
2091 | Pre_options(); | |
2092 | }; | |
2093 | ||
2094 | // This must come before options_! | |
2095 | Pre_options pre_options_; | |
bae7f79e ILT |
2096 | General_options options_; |
2097 | Position_dependent_options position_options_; | |
a5dc0706 | 2098 | Script_options script_options_; |
ead1e424 | 2099 | Input_arguments inputs_; |
bae7f79e ILT |
2100 | }; |
2101 | ||
2102 | } // End namespace gold. | |
2103 | ||
2104 | #endif // !defined(GOLD_OPTIONS_H) |