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bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
4b95cf5c | 3 | // Copyright (C) 2006-2014 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, | |
0c6e6c39 | 123 | const char* choices[], int num_choices); |
ee1fe73e ILT |
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, | |
0c6e6c39 | 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, | |
0c6e6c39 | 222 | Command_line* cmdline, General_options* options) = 0; |
ee1fe73e ILT |
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*, | |
0c6e6c39 | 233 | Command_line*); |
ee1fe73e | 234 | Struct_special(const char* varname, Dashes dashes, char shortname, |
0c6e6c39 RM |
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, |
0c6e6c39 | 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 | 263 | #define DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
264 | default_value_as_string__, helpstring__, helparg__, \ |
265 | optional_arg__, type__, param_type__, parse_fn__) \ | |
ee1fe73e ILT |
266 | public: \ |
267 | param_type__ \ | |
e96c574b | 268 | (varname__)() const \ |
ee1fe73e | 269 | { return this->varname__##_.value; } \ |
0c6e6c39 | 270 | \ |
ee1fe73e ILT |
271 | bool \ |
272 | user_set_##varname__() const \ | |
273 | { return this->varname__##_.user_set_via_option; } \ | |
0c6e6c39 | 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__, \ | |
0c6e6c39 RM |
284 | helpstring__, helparg__, optional_arg__, this), \ |
285 | user_set_via_option(false), value(default_value__) \ | |
ee1fe73e | 286 | { } \ |
0c6e6c39 | 287 | \ |
ee1fe73e ILT |
288 | void \ |
289 | parse_to_value(const char* option_name, const char* arg, \ | |
0c6e6c39 | 290 | Command_line*, General_options*) \ |
ee1fe73e ILT |
291 | { \ |
292 | parse_fn__(option_name, arg, &this->value); \ | |
293 | this->user_set_via_option = true; \ | |
294 | } \ | |
0c6e6c39 | 295 | \ |
ee1fe73e ILT |
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 | 310 | #define DEFINE_bool(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 | 311 | helpstring__, no_helpstring__) \ |
ee1fe73e | 312 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
313 | default_value__ ? "true" : "false", helpstring__, NULL, \ |
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', \ | |
0c6e6c39 RM |
321 | default_value__ ? "false" : "true", \ |
322 | no_helpstring__, NULL, false, this) \ | |
ee1fe73e | 323 | { } \ |
0c6e6c39 | 324 | \ |
ee1fe73e ILT |
325 | void \ |
326 | parse_to_value(const char*, const char*, \ | |
0c6e6c39 | 327 | Command_line*, General_options* options) \ |
41263c05 DK |
328 | { \ |
329 | options->set_##varname__(false); \ | |
330 | options->set_user_set_##varname__(); \ | |
331 | } \ | |
0c6e6c39 | 332 | \ |
ee1fe73e ILT |
333 | options::One_option option; \ |
334 | }; \ | |
335 | Struct_no_##varname__ no_##varname__##_initializer_ | |
336 | ||
7c414435 | 337 | #define DEFINE_enable(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 | 338 | helpstring__, no_helpstring__) \ |
7c414435 | 339 | DEFINE_var(enable_##varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
340 | default_value__ ? "true" : "false", helpstring__, NULL, \ |
341 | false, bool, bool, options::parse_bool) \ | |
7c414435 DM |
342 | struct Struct_disable_##varname__ : public options::Struct_var \ |
343 | { \ | |
344 | Struct_disable_##varname__() : option("disable-" #varname__, \ | |
0c6e6c39 RM |
345 | dashes__, '\0', \ |
346 | default_value__ ? "false" : "true", \ | |
347 | no_helpstring__, NULL, false, this) \ | |
7c414435 | 348 | { } \ |
0c6e6c39 | 349 | \ |
7c414435 DM |
350 | void \ |
351 | parse_to_value(const char*, const char*, \ | |
0c6e6c39 | 352 | Command_line*, General_options* options) \ |
7c414435 | 353 | { options->set_enable_##varname__(false); } \ |
0c6e6c39 | 354 | \ |
7c414435 DM |
355 | options::One_option option; \ |
356 | }; \ | |
357 | Struct_disable_##varname__ disable_##varname__##_initializer_ | |
358 | ||
c0a62865 | 359 | #define DEFINE_int(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 | 360 | helpstring__, helparg__) \ |
c0a62865 | 361 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
362 | #default_value__, helpstring__, helparg__, false, \ |
363 | int, int, options::parse_int) | |
c0a62865 | 364 | |
ee1fe73e | 365 | #define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 | 366 | helpstring__, helparg__) \ |
ee1fe73e | 367 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
368 | #default_value__, helpstring__, helparg__, false, \ |
369 | int, int, options::parse_uint) | |
ee1fe73e ILT |
370 | |
371 | #define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \ | |
0c6e6c39 | 372 | helpstring__, helparg__) \ |
ee1fe73e | 373 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
374 | #default_value__, helpstring__, helparg__, false, \ |
375 | uint64_t, uint64_t, options::parse_uint64) | |
ee1fe73e | 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 | 389 | #define DEFINE_string(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 | 390 | helpstring__, helparg__) \ |
ee1fe73e | 391 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
392 | default_value__, helpstring__, helparg__, false, \ |
393 | const char*, const char*, options::parse_string) | |
ee1fe73e ILT |
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__, \ | |
0c6e6c39 | 399 | helpstring__, helparg__) \ |
ee1fe73e | 400 | DEFINE_var(varname__, dashes__, shortname__, , \ |
0c6e6c39 RM |
401 | "", helpstring__, helparg__, false, options::Dir_list, \ |
402 | const options::Dir_list&, options::parse_dirlist) \ | |
ee1fe73e ILT |
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__, \ | |
0c6e6c39 | 412 | helpstring__, helparg__) \ |
c5818ff1 | 413 | DEFINE_var(varname__, dashes__, shortname__, , \ |
0c6e6c39 RM |
414 | "", helpstring__, helparg__, false, options::String_set, \ |
415 | const options::String_set&, options::parse_set) \ | |
c5818ff1 CC |
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() \ | |
0c6e6c39 RM |
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__, \ | |
0c6e6c39 | 441 | helpstring__, helparg__, ...) \ |
ee1fe73e | 442 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ |
0c6e6c39 RM |
443 | default_value__, helpstring__, helparg__, false, \ |
444 | const char*, const char*, parse_choices_##varname__) \ | |
ee1fe73e ILT |
445 | private: \ |
446 | static void parse_choices_##varname__(const char* option_name, \ | |
0c6e6c39 RM |
447 | const char* arg, \ |
448 | const char** retval) { \ | |
ee1fe73e ILT |
449 | const char* choices[] = __VA_ARGS__; \ |
450 | options::parse_choices(option_name, arg, retval, \ | |
0c6e6c39 | 451 | choices, sizeof(choices) / sizeof(*choices)); \ |
ee1fe73e ILT |
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__, \ | |
0c6e6c39 | 533 | helpstring__, helparg__) \ |
ee1fe73e ILT |
534 | private: \ |
535 | void parse_##varname__(const char* option, const char* arg, \ | |
0c6e6c39 | 536 | Command_line* inputs); \ |
ee1fe73e ILT |
537 | struct Struct_##varname__ : public options::Struct_special \ |
538 | { \ | |
539 | Struct_##varname__() \ | |
540 | : options::Struct_special(#varname__, dashes__, shortname__, \ | |
0c6e6c39 RM |
541 | &General_options::parse_##varname__, \ |
542 | helpstring__, helparg__) \ | |
ee1fe73e ILT |
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__, \ | |
0c6e6c39 RM |
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', | |
0c6e6c39 | 623 | N_("Report usage information"), NULL); |
ee1fe73e | 624 | DEFINE_special(version, options::TWO_DASHES, 'v', |
0c6e6c39 | 625 | N_("Report version information"), NULL); |
b5be4a7c | 626 | DEFINE_special(V, options::EXACTLY_ONE_DASH, '\0', |
0c6e6c39 | 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, |
0c6e6c39 RM |
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, | |
0c6e6c39 RM |
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", | |
0c6e6c39 | 660 | N_("Set input format"), ("[elf,binary]")); |
fee2edb1 | 661 | |
ee1fe73e | 662 | DEFINE_bool(Bdynamic, options::ONE_DASH, '\0', true, |
0c6e6c39 | 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, |
0c6e6c39 | 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 | 685 | DEFINE_uint64(build_id_chunk_size_for_treehash, |
0c6e6c39 RM |
686 | options::TWO_DASHES, '\0', 2 << 20, |
687 | N_("Chunk size for '--build-id=tree'"), N_("SIZE")); | |
e7c5ea40 CC |
688 | |
689 | DEFINE_uint64(build_id_min_file_size_for_treehash, options::TWO_DASHES, | |
0c6e6c39 RM |
690 | '\0', 40 << 20, |
691 | N_("Minimum output file size for '--build-id=tree' to work" | |
692 | " differently than '--build-id=sha1'"), N_("SIZE")); | |
e7c5ea40 | 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", | |
0c6e6c39 RM |
700 | N_("Compress .debug_* sections in the output file"), |
701 | ("[none,zlib]"), | |
702 | {"none", "zlib"}); | |
ee1fe73e ILT |
703 | #else |
704 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
0c6e6c39 RM |
705 | N_("Compress .debug_* sections in the output file"), |
706 | N_("[none]"), | |
707 | {"none"}); | |
ee1fe73e | 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, |
0c6e6c39 RM |
723 | N_("Define common symbols"), |
724 | N_("Do not define common symbols")); | |
ee1fe73e | 725 | DEFINE_bool(dc, options::ONE_DASH, '\0', false, |
0c6e6c39 | 726 | N_("Alias for -d"), NULL); |
ee1fe73e | 727 | DEFINE_bool(dp, options::ONE_DASH, '\0', false, |
0c6e6c39 | 728 | N_("Alias for -d"), NULL); |
d391083d | 729 | |
fee2edb1 | 730 | DEFINE_string(debug, options::TWO_DASHES, '\0', "", |
0c6e6c39 RM |
731 | N_("Turn on debugging"), |
732 | N_("[all,files,script,task][,...]")); | |
fee2edb1 | 733 | |
ee1fe73e | 734 | DEFINE_special(defsym, options::TWO_DASHES, '\0', |
0c6e6c39 | 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, |
0c6e6c39 | 746 | N_("Look for violations of the C++ One Definition Rule"), |
f30f86fa | 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 | 751 | DEFINE_bool(discard_locals, options::TWO_DASHES, 'X', false, |
0c6e6c39 | 752 | N_("Delete all temporary local symbols"), NULL); |
bb04269c | 753 | |
c82fbeee | 754 | DEFINE_bool(dynamic_list_data, options::TWO_DASHES, '\0', false, |
0c6e6c39 | 755 | N_("Add data symbols to dynamic symbols"), NULL); |
c82fbeee CS |
756 | |
757 | DEFINE_bool(dynamic_list_cpp_new, options::TWO_DASHES, '\0', false, | |
0c6e6c39 | 758 | N_("Add C++ operator new/delete to dynamic symbols"), NULL); |
c82fbeee CS |
759 | |
760 | DEFINE_bool(dynamic_list_cpp_typeinfo, options::TWO_DASHES, '\0', false, | |
0c6e6c39 | 761 | N_("Add C++ typeinfo to dynamic symbols"), NULL); |
c82fbeee CS |
762 | |
763 | DEFINE_special(dynamic_list, options::TWO_DASHES, '\0', | |
0c6e6c39 | 764 | N_("Read a list of dynamic symbols"), N_("FILE")); |
c82fbeee | 765 | |
ee1fe73e | 766 | DEFINE_string(entry, options::TWO_DASHES, 'e', NULL, |
0c6e6c39 | 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, |
0c6e6c39 | 774 | N_("Export all dynamic symbols"), |
ee769c88 | 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 | 786 | DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false, |
0c6e6c39 | 787 | N_("Create exception frame header"), NULL); |
f1ddb600 | 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 | 805 | DEFINE_string(fini, options::ONE_DASH, '\0', "_fini", |
0c6e6c39 | 806 | N_("Call SYMBOL at unload-time"), N_("SYMBOL")); |
c6585162 | 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 | 820 | DEFINE_special(fix_v4bx, options::TWO_DASHES, '\0', |
0c6e6c39 RM |
821 | N_("(ARM only) Rewrite BX rn as MOV pc, rn for ARMv4"), |
822 | NULL); | |
9b2fd367 DK |
823 | |
824 | DEFINE_special(fix_v4bx_interworking, options::TWO_DASHES, '\0', | |
0c6e6c39 RM |
825 | N_("(ARM only) Rewrite BX rn branch to ARMv4 interworking " |
826 | "veneer"), | |
827 | NULL); | |
9b2fd367 | 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, |
0c6e6c39 | 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, |
0c6e6c39 | 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 | 869 | DEFINE_string(incremental_base, options::TWO_DASHES, '\0', NULL, |
0c6e6c39 RM |
870 | N_("Set base file for incremental linking" |
871 | " (default is output file)"), | |
872 | N_("FILE")); | |
aa92d6ed | 873 | |
266d0a74 | 874 | DEFINE_special(incremental_changed, options::TWO_DASHES, '\0', |
0c6e6c39 | 875 | N_("Assume files changed"), NULL); |
266d0a74 ILT |
876 | |
877 | DEFINE_special(incremental_unchanged, options::TWO_DASHES, '\0', | |
0c6e6c39 | 878 | N_("Assume files didn't change"), NULL); |
266d0a74 ILT |
879 | |
880 | DEFINE_special(incremental_unknown, options::TWO_DASHES, '\0', | |
0c6e6c39 | 881 | N_("Use timestamps to check files (default)"), NULL); |
266d0a74 | 882 | |
221597a5 | 883 | DEFINE_special(incremental_startup_unchanged, options::TWO_DASHES, '\0', |
0c6e6c39 | 884 | N_("Assume startup files unchanged " |
221597a5 CC |
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 | 891 | DEFINE_string(init, options::ONE_DASH, '\0', "_init", |
0c6e6c39 | 892 | N_("Call SYMBOL at load-time"), N_("SYMBOL")); |
c6585162 | 893 | |
fee2edb1 | 894 | DEFINE_special(just_symbols, options::TWO_DASHES, '\0', |
0c6e6c39 | 895 | N_("Read only symbol values from FILE"), N_("FILE")); |
fee2edb1 | 896 | |
a2a5469e | 897 | DEFINE_bool(map_whole_files, options::TWO_DASHES, '\0', |
2c849493 | 898 | sizeof(void*) >= 8, |
0c6e6c39 RM |
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 | 902 | DEFINE_bool(keep_files_mapped, options::TWO_DASHES, '\0', true, |
0c6e6c39 RM |
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', |
0c6e6c39 | 911 | N_("Search for library LIBNAME"), N_("LIBNAME")); |
bae7f79e | 912 | |
ee1fe73e | 913 | DEFINE_dirlist(library_path, options::TWO_DASHES, 'L', |
0c6e6c39 | 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 | 921 | DEFINE_bool(nostdlib, options::ONE_DASH, '\0', false, |
0c6e6c39 RM |
922 | N_("Only search directories specified on the command line."), |
923 | NULL); | |
91e75c8a | 924 | |
0f72bf6f | 925 | DEFINE_bool(rosegment, options::TWO_DASHES, '\0', false, |
0c6e6c39 RM |
926 | N_("Put read-only non-executable sections in their own segment"), |
927 | NULL); | |
0f72bf6f | 928 | |
bbc5ae17 RM |
929 | DEFINE_uint64(rosegment_gap, options::TWO_DASHES, '\0', -1U, |
930 | N_("Set offset between executable and read-only segments"), | |
931 | N_("OFFSET")); | |
932 | ||
ee1fe73e | 933 | DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "", |
0c6e6c39 | 934 | N_("Set GNU linker emulation; obsolete"), N_("EMULATION")); |
ee1fe73e | 935 | |
7c0640fa | 936 | DEFINE_bool(mmap_output_file, options::TWO_DASHES, '\0', true, |
0c6e6c39 RM |
937 | N_("Map the output file for writing (default)."), |
938 | N_("Do not map the output file for writing.")); | |
7c0640fa | 939 | |
7d9e3d98 ILT |
940 | DEFINE_bool(print_map, options::TWO_DASHES, 'M', false, |
941 | N_("Write map file on standard output"), NULL); | |
942 | DEFINE_string(Map, options::ONE_DASH, '\0', NULL, N_("Write map file"), | |
943 | N_("MAPFILENAME")); | |
944 | ||
af6156ef ILT |
945 | DEFINE_bool(nmagic, options::TWO_DASHES, 'n', false, |
946 | N_("Do not page align data"), NULL); | |
947 | DEFINE_bool(omagic, options::EXACTLY_TWO_DASHES, 'N', false, | |
948 | N_("Do not page align data, do not make text readonly"), | |
949 | N_("Page align data, make text readonly")); | |
950 | ||
50701cc1 | 951 | DEFINE_enable(new_dtags, options::EXACTLY_TWO_DASHES, '\0', true, |
7c414435 DM |
952 | N_("Enable use of DT_RUNPATH and DT_FLAGS"), |
953 | N_("Disable use of DT_RUNPATH and DT_FLAGS")); | |
954 | ||
cdb0b8f5 ILT |
955 | DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false, |
956 | N_("Create an output file even if errors occur"), NULL); | |
957 | ||
f3e9c5c5 ILT |
958 | DEFINE_bool_alias(no_undefined, defs, options::TWO_DASHES, '\0', |
959 | N_("Report undefined symbols (even with --shared)"), | |
960 | NULL, false); | |
961 | ||
ee1fe73e | 962 | DEFINE_string(output, options::TWO_DASHES, 'o', "a.out", |
0c6e6c39 | 963 | N_("Set output file name"), N_("FILE")); |
ee1fe73e ILT |
964 | |
965 | DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0, | |
0c6e6c39 | 966 | N_("Optimize output file size"), N_("LEVEL")); |
ee1fe73e | 967 | |
a4d4b13f ILT |
968 | DEFINE_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf", |
969 | N_("Set output format"), N_("[binary]")); | |
ee1fe73e | 970 | |
7296d933 DK |
971 | DEFINE_bool(p, options::ONE_DASH, '\0', false, |
972 | N_("(ARM only) Ignore for backward compatibility"), NULL); | |
973 | ||
374ad285 ILT |
974 | DEFINE_bool(pie, options::ONE_DASH, '\0', false, |
975 | N_("Create a position independent executable"), NULL); | |
976 | DEFINE_bool_alias(pic_executable, pie, options::TWO_DASHES, '\0', | |
977 | N_("Create a position independent executable"), NULL, | |
978 | false); | |
979 | ||
7296d933 DK |
980 | DEFINE_bool(pipeline_knowledge, options::ONE_DASH, '\0', false, |
981 | NULL, N_("(ARM only) Ignore for backward compatibility")); | |
982 | ||
9e69ed50 AM |
983 | DEFINE_var(plt_align, options::TWO_DASHES, '\0', 0, "5", |
984 | N_("(PowerPC64 only) Align PLT call stubs to fit cache lines"), | |
985 | N_("[=P2ALIGN]"), true, int, int, options::parse_uint); | |
986 | ||
987 | DEFINE_bool(plt_static_chain, options::TWO_DASHES, '\0', false, | |
988 | N_("(PowerPC64 only) PLT call stubs should load r11"), | |
989 | N_("(PowerPC64 only) PLT call stubs should not load r11")); | |
990 | ||
991 | DEFINE_bool(plt_thread_safe, options::TWO_DASHES, '\0', false, | |
992 | N_("(PowerPC64 only) PLT call stubs with load-load barrier"), | |
993 | N_("(PowerPC64 only) PLT call stubs without barrier")); | |
994 | ||
89fc3421 CC |
995 | #ifdef ENABLE_PLUGINS |
996 | DEFINE_special(plugin, options::TWO_DASHES, '\0', | |
0c6e6c39 | 997 | N_("Load a plugin library"), N_("PLUGIN")); |
4674ecfc | 998 | DEFINE_special(plugin_opt, options::TWO_DASHES, '\0', |
0c6e6c39 | 999 | N_("Pass an option to the plugin"), N_("OPTION")); |
89fc3421 CC |
1000 | #endif |
1001 | ||
7c0640fa | 1002 | DEFINE_bool(posix_fallocate, options::TWO_DASHES, '\0', true, |
0c6e6c39 | 1003 | N_("Use posix_fallocate to reserve space in the output file" |
7c0640fa | 1004 | " (default)."), |
0c6e6c39 | 1005 | N_("Use fallocate or ftruncate to reserve space.")); |
7c0640fa | 1006 | |
ac45a351 | 1007 | DEFINE_bool(preread_archive_symbols, options::TWO_DASHES, '\0', false, |
0c6e6c39 | 1008 | N_("Preread archive symbols when multi-threaded"), NULL); |
89fc3421 | 1009 | |
f1ddb600 ILT |
1010 | DEFINE_bool(print_output_format, options::TWO_DASHES, '\0', false, |
1011 | N_("Print default output format"), NULL); | |
1012 | ||
92de84a6 ILT |
1013 | DEFINE_string(print_symbol_counts, options::TWO_DASHES, '\0', NULL, |
1014 | N_("Print symbols defined and used for each input"), | |
1015 | N_("FILENAME")); | |
1016 | ||
b5be4a7c DM |
1017 | DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false, |
1018 | N_("Ignored for SVR4 compatibility"), NULL); | |
1019 | ||
ee1fe73e | 1020 | DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false, |
0c6e6c39 | 1021 | N_("Generate relocations in output"), NULL); |
ee1fe73e ILT |
1022 | |
1023 | DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false, | |
0c6e6c39 | 1024 | N_("Generate relocatable output"), NULL); |
ec69d6da ILT |
1025 | DEFINE_bool_alias(i, relocatable, options::EXACTLY_ONE_DASH, '\0', |
1026 | N_("Synonym for -r"), NULL, false); | |
ee1fe73e | 1027 | |
706e1f5e ILT |
1028 | DEFINE_bool(relax, options::TWO_DASHES, '\0', false, |
1029 | N_("Relax branches on certain targets"), NULL); | |
1030 | ||
719328e1 | 1031 | DEFINE_string(retain_symbols_file, options::TWO_DASHES, '\0', NULL, |
0c6e6c39 | 1032 | N_("keep only symbols listed in this file"), N_("FILE")); |
8c604651 | 1033 | |
ee1fe73e ILT |
1034 | // -R really means -rpath, but can mean --just-symbols for |
1035 | // compatibility with GNU ld. -rpath is always -rpath, so we list | |
1036 | // it separately. | |
1037 | DEFINE_special(R, options::EXACTLY_ONE_DASH, 'R', | |
0c6e6c39 | 1038 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e ILT |
1039 | |
1040 | DEFINE_dirlist(rpath, options::ONE_DASH, '\0', | |
0c6e6c39 | 1041 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e | 1042 | |
ee1fe73e | 1043 | DEFINE_dirlist(rpath_link, options::TWO_DASHES, '\0', |
0c6e6c39 RM |
1044 | N_("Add DIR to link time shared library search path"), |
1045 | N_("DIR")); | |
ee1fe73e | 1046 | |
6e9ba2ca ST |
1047 | DEFINE_string(section_ordering_file, options::TWO_DASHES, '\0', NULL, |
1048 | N_("Layout sections in the order specified."), | |
1049 | N_("FILENAME")); | |
1050 | ||
a192ba05 ILT |
1051 | DEFINE_special(section_start, options::TWO_DASHES, '\0', |
1052 | N_("Set address of section"), N_("SECTION=ADDRESS")); | |
1053 | ||
fc59c572 ILT |
1054 | DEFINE_optional_string(sort_common, options::TWO_DASHES, '\0', NULL, |
1055 | N_("Sort common symbols by alignment"), | |
1056 | N_("[={ascending,descending}]")); | |
1057 | ||
6934001a CC |
1058 | DEFINE_enum(sort_section, options::TWO_DASHES, '\0', "none", |
1059 | N_("Sort sections by name. \'--no-text-reorder\'" | |
1060 | " will override \'--sort-section=name\' for .text"), | |
1061 | N_("[none,name]"), | |
1062 | {"none", "name"}); | |
1063 | ||
9e9e071b ILT |
1064 | DEFINE_uint(spare_dynamic_tags, options::TWO_DASHES, '\0', 5, |
1065 | N_("Dynamic tag slots to reserve (default 5)"), | |
1066 | N_("COUNT")); | |
1067 | ||
ee1fe73e | 1068 | DEFINE_bool(strip_all, options::TWO_DASHES, 's', false, |
0c6e6c39 | 1069 | N_("Strip all symbols"), NULL); |
fee2edb1 | 1070 | DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false, |
0c6e6c39 | 1071 | N_("Strip debugging information"), NULL); |
62b01cb5 | 1072 | DEFINE_bool(strip_debug_non_line, options::TWO_DASHES, '\0', false, |
0c6e6c39 | 1073 | N_("Emit only debug line number information"), NULL); |
ee1fe73e | 1074 | DEFINE_bool(strip_debug_gdb, options::TWO_DASHES, '\0', false, |
0c6e6c39 RM |
1075 | N_("Strip debug symbols that are unused by gdb " |
1076 | "(at least versions <= 7.4)"), NULL); | |
fd06b4aa | 1077 | DEFINE_bool(strip_lto_sections, options::TWO_DASHES, '\0', true, |
0c6e6c39 | 1078 | N_("Strip LTO intermediate code sections"), NULL); |
ee1fe73e | 1079 | |
c0a62865 | 1080 | DEFINE_int(stub_group_size, options::TWO_DASHES , '\0', 1, |
0c6e6c39 | 1081 | N_("(ARM, PowerPC only) The maximum distance from instructions " |
9e69ed50 AM |
1082 | "in a group of sections to their stubs. Negative values mean " |
1083 | "stubs are always after (PowerPC before) the group. 1 means " | |
1084 | "use default size.\n"), | |
c0a62865 DK |
1085 | N_("SIZE")); |
1086 | ||
f773f3d2 | 1087 | DEFINE_bool(no_keep_memory, options::TWO_DASHES, '\0', false, |
0c6e6c39 RM |
1088 | N_("Use less memory and more disk I/O " |
1089 | "(included only for compatibility with GNU ld)"), NULL); | |
3b293544 | 1090 | |
fe35d28d | 1091 | DEFINE_bool(shared, options::ONE_DASH, 'G', false, |
0c6e6c39 | 1092 | N_("Generate shared library"), NULL); |
ee1fe73e | 1093 | |
3b293544 | 1094 | DEFINE_bool(Bshareable, options::ONE_DASH, '\0', false, |
0c6e6c39 | 1095 | N_("Generate shared library"), NULL); |
3b293544 | 1096 | |
364c7fa5 ILT |
1097 | DEFINE_uint(split_stack_adjust_size, options::TWO_DASHES, '\0', 0x4000, |
1098 | N_("Stack size when -fsplit-stack function calls non-split"), | |
1099 | N_("SIZE")); | |
1100 | ||
ee1fe73e ILT |
1101 | // This is not actually special in any way, but I need to give it |
1102 | // a non-standard accessor-function name because 'static' is a keyword. | |
1103 | DEFINE_special(static, options::ONE_DASH, '\0', | |
0c6e6c39 | 1104 | N_("Do not link against shared libraries"), NULL); |
ee1fe73e | 1105 | |
032ce4e9 | 1106 | DEFINE_enum(icf, options::TWO_DASHES, '\0', "none", |
0c6e6c39 RM |
1107 | N_("Identical Code Folding. " |
1108 | "\'--icf=safe\' Folds ctors, dtors and functions whose" | |
1109 | " pointers are definitely not taken."), | |
1110 | ("[none,all,safe]"), | |
1111 | {"none", "all", "safe"}); | |
ef15dade ST |
1112 | |
1113 | DEFINE_uint(icf_iterations, options::TWO_DASHES , '\0', 0, | |
0c6e6c39 | 1114 | N_("Number of iterations of ICF (default 2)"), N_("COUNT")); |
ef15dade ST |
1115 | |
1116 | DEFINE_bool(print_icf_sections, options::TWO_DASHES, '\0', false, | |
0c6e6c39 RM |
1117 | N_("List folded identical sections on stderr"), |
1118 | N_("Do not list folded identical sections")); | |
ef15dade | 1119 | |
48c187ce ST |
1120 | DEFINE_set(keep_unique, options::TWO_DASHES, '\0', |
1121 | N_("Do not fold this symbol during ICF"), N_("SYMBOL")); | |
1122 | ||
6d03d481 | 1123 | DEFINE_bool(gc_sections, options::TWO_DASHES, '\0', false, |
0c6e6c39 RM |
1124 | N_("Remove unused sections"), |
1125 | N_("Don't remove unused sections (default)")); | |
266d0a74 | 1126 | |
6d03d481 | 1127 | DEFINE_bool(print_gc_sections, options::TWO_DASHES, '\0', false, |
0c6e6c39 RM |
1128 | N_("List removed unused sections on stderr"), |
1129 | N_("Do not list removed unused sections")); | |
6d03d481 | 1130 | |
ee1fe73e | 1131 | DEFINE_bool(stats, options::TWO_DASHES, '\0', false, |
0c6e6c39 | 1132 | N_("Print resource usage statistics"), NULL); |
ee1fe73e ILT |
1133 | |
1134 | DEFINE_string(sysroot, options::TWO_DASHES, '\0', "", | |
0c6e6c39 | 1135 | N_("Set target system root directory"), N_("DIR")); |
ee1fe73e | 1136 | |
c5818ff1 | 1137 | DEFINE_bool(trace, options::TWO_DASHES, 't', false, |
0c6e6c39 | 1138 | N_("Print the name of each input file"), NULL); |
c5818ff1 | 1139 | |
ee1fe73e | 1140 | DEFINE_special(script, options::TWO_DASHES, 'T', |
0c6e6c39 | 1141 | N_("Read linker script"), N_("FILE")); |
ee1fe73e ILT |
1142 | |
1143 | DEFINE_bool(threads, options::TWO_DASHES, '\0', false, | |
0c6e6c39 RM |
1144 | N_("Run the linker multi-threaded"), |
1145 | N_("Do not run the linker multi-threaded")); | |
ee1fe73e | 1146 | DEFINE_uint(thread_count, options::TWO_DASHES, '\0', 0, |
0c6e6c39 | 1147 | N_("Number of threads to use"), N_("COUNT")); |
ee1fe73e | 1148 | DEFINE_uint(thread_count_initial, options::TWO_DASHES, '\0', 0, |
0c6e6c39 | 1149 | N_("Number of threads to use in initial pass"), N_("COUNT")); |
ee1fe73e | 1150 | DEFINE_uint(thread_count_middle, options::TWO_DASHES, '\0', 0, |
0c6e6c39 | 1151 | N_("Number of threads to use in middle pass"), N_("COUNT")); |
ee1fe73e | 1152 | DEFINE_uint(thread_count_final, options::TWO_DASHES, '\0', 0, |
0c6e6c39 | 1153 | N_("Number of threads to use in final pass"), N_("COUNT")); |
ee1fe73e | 1154 | |
fee2edb1 | 1155 | DEFINE_uint64(Tbss, options::ONE_DASH, '\0', -1U, |
0c6e6c39 | 1156 | N_("Set the address of the bss segment"), N_("ADDRESS")); |
fee2edb1 | 1157 | DEFINE_uint64(Tdata, options::ONE_DASH, '\0', -1U, |
0c6e6c39 | 1158 | N_("Set the address of the data segment"), N_("ADDRESS")); |
fee2edb1 | 1159 | DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U, |
0c6e6c39 | 1160 | N_("Set the address of the text segment"), N_("ADDRESS")); |
214383dd ILT |
1161 | DEFINE_uint64_alias(Ttext_segment, Ttext, options::ONE_DASH, '\0', |
1162 | N_("Set the address of the text segment"), | |
1163 | N_("ADDRESS")); | |
a3ed37d8 RM |
1164 | DEFINE_uint64(Trodata_segment, options::ONE_DASH, '\0', -1U, |
1165 | N_("Set the address of the rodata segment"), N_("ADDRESS")); | |
fee2edb1 | 1166 | |
d8f5a274 AM |
1167 | DEFINE_bool(toc_optimize, options::TWO_DASHES, '\0', true, |
1168 | N_("(PowerPC64 only) Optimize TOC code sequences"), | |
1169 | N_("(PowerPC64 only) Don't optimize TOC code sequences")); | |
1170 | ||
1171 | DEFINE_bool(toc_sort, options::TWO_DASHES, '\0', true, | |
1172 | N_("(PowerPC64 only) Sort TOC and GOT sections"), | |
1173 | N_("(PowerPC64 only) Don't sort TOC and GOT sections")); | |
aba6bc71 | 1174 | |
f3e9c5c5 ILT |
1175 | DEFINE_set(undefined, options::TWO_DASHES, 'u', |
1176 | N_("Create undefined reference to SYMBOL"), N_("SYMBOL")); | |
2b706932 | 1177 | |
beabb2c6 ILT |
1178 | DEFINE_enum(unresolved_symbols, options::TWO_DASHES, '\0', NULL, |
1179 | N_("How to handle unresolved symbols"), | |
1180 | ("ignore-all,report-all,ignore-in-object-files," | |
1181 | "ignore-in-shared-libs"), | |
1182 | {"ignore-all", "report-all", "ignore-in-object-files", | |
1183 | "ignore-in-shared-libs"}); | |
1184 | ||
2285a610 | 1185 | DEFINE_bool(verbose, options::TWO_DASHES, '\0', false, |
0c6e6c39 | 1186 | N_("Synonym for --debug=files"), NULL); |
2285a610 | 1187 | |
fee2edb1 | 1188 | DEFINE_special(version_script, options::TWO_DASHES, '\0', |
0c6e6c39 | 1189 | N_("Read version script"), N_("FILE")); |
fee2edb1 | 1190 | |
1ae4d23b ILT |
1191 | DEFINE_bool(warn_common, options::TWO_DASHES, '\0', false, |
1192 | N_("Warn about duplicate common symbols"), | |
1193 | N_("Do not warn about duplicate common symbols (default)")); | |
1194 | ||
37a9ac43 ILT |
1195 | DEFINE_bool(warn_constructors, options::TWO_DASHES, '\0', false, |
1196 | N_("Ignored"), N_("Ignored")); | |
1197 | ||
83e17bd5 CC |
1198 | DEFINE_bool(warn_execstack, options::TWO_DASHES, '\0', false, |
1199 | N_("Warn if the stack is executable"), | |
1200 | N_("Do not warn if the stack is executable (default)")); | |
1201 | ||
7296d933 DK |
1202 | DEFINE_bool(warn_mismatch, options::TWO_DASHES, '\0', true, |
1203 | NULL, N_("Don't warn about mismatched input files")); | |
1204 | ||
6eda8c29 ILT |
1205 | DEFINE_bool(warn_multiple_gp, options::TWO_DASHES, '\0', false, |
1206 | N_("Ignored"), NULL); | |
1207 | ||
15f8229b ILT |
1208 | DEFINE_bool(warn_search_mismatch, options::TWO_DASHES, '\0', true, |
1209 | N_("Warn when skipping an incompatible library"), | |
1210 | N_("Don't warn when skipping an incompatible library")); | |
1211 | ||
b9674e17 ILT |
1212 | DEFINE_bool(warn_shared_textrel, options::TWO_DASHES, '\0', false, |
1213 | N_("Warn if text segment is not shareable"), | |
1214 | N_("Do not warn if text segment is not shareable (default)")); | |
1215 | ||
dc3f80fe ILT |
1216 | DEFINE_bool(warn_unresolved_symbols, options::TWO_DASHES, '\0', false, |
1217 | N_("Report unresolved symbols as warnings"), | |
1218 | NULL); | |
1219 | DEFINE_bool_alias(error_unresolved_symbols, warn_unresolved_symbols, | |
1220 | options::TWO_DASHES, '\0', | |
1221 | N_("Report unresolved symbols as errors"), | |
1222 | NULL, true); | |
1223 | ||
ce0d1972 DK |
1224 | DEFINE_bool(wchar_size_warning, options::TWO_DASHES, '\0', true, NULL, |
1225 | N_("(ARM only) Do not warn about objects with incompatible " | |
1226 | "wchar_t sizes")); | |
1227 | ||
ee1fe73e | 1228 | DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false, |
0c6e6c39 RM |
1229 | N_("Include all archive contents"), |
1230 | N_("Include only needed archive contents")); | |
ee1fe73e | 1231 | |
c5818ff1 CC |
1232 | DEFINE_set(wrap, options::TWO_DASHES, '\0', |
1233 | N_("Use wrapper functions for SYMBOL"), N_("SYMBOL")); | |
1234 | ||
1235 | DEFINE_set(trace_symbol, options::TWO_DASHES, 'y', | |
0c6e6c39 | 1236 | N_("Trace references to symbol"), N_("SYMBOL")); |
0864d551 | 1237 | |
62dfdd4d ILT |
1238 | DEFINE_bool(undefined_version, options::TWO_DASHES, '\0', true, |
1239 | N_("Allow unused version in script (default)"), | |
1240 | N_("Do not allow unused version in script")); | |
1241 | ||
706e1f5e ILT |
1242 | DEFINE_string(Y, options::EXACTLY_ONE_DASH, 'Y', "", |
1243 | N_("Default search path for Solaris compatibility"), | |
1244 | N_("PATH")); | |
1245 | ||
ee1fe73e | 1246 | DEFINE_special(start_group, options::TWO_DASHES, '(', |
0c6e6c39 | 1247 | N_("Start a library search group"), NULL); |
ee1fe73e | 1248 | DEFINE_special(end_group, options::TWO_DASHES, ')', |
0c6e6c39 | 1249 | N_("End a library search group"), NULL); |
ee1fe73e | 1250 | |
b0193076 RÁE |
1251 | |
1252 | DEFINE_special(start_lib, options::TWO_DASHES, '\0', | |
0c6e6c39 | 1253 | N_("Start a library"), NULL); |
b0193076 | 1254 | DEFINE_special(end_lib, options::TWO_DASHES, '\0', |
0c6e6c39 | 1255 | N_("End a library "), NULL); |
b0193076 | 1256 | |
4f46f626 L |
1257 | DEFINE_string(fuse_ld, options::ONE_DASH, '\0', "", |
1258 | N_("Ignored for GCC linker option compatibility"), | |
1259 | ""); | |
1260 | ||
fee2edb1 | 1261 | // The -z options. |
ee1fe73e | 1262 | |
d98bc257 ILT |
1263 | DEFINE_bool(combreloc, options::DASH_Z, '\0', true, |
1264 | N_("Sort dynamic relocs"), | |
1265 | N_("Do not sort dynamic relocs")); | |
fee2edb1 | 1266 | DEFINE_uint64(common_page_size, options::DASH_Z, '\0', 0, |
0c6e6c39 | 1267 | N_("Set common page size to SIZE"), N_("SIZE")); |
eb42429a | 1268 | DEFINE_bool(defs, options::DASH_Z, '\0', false, |
0c6e6c39 RM |
1269 | N_("Report undefined symbols (even with --shared)"), |
1270 | NULL); | |
ee1fe73e | 1271 | DEFINE_bool(execstack, options::DASH_Z, '\0', false, |
0c6e6c39 | 1272 | N_("Mark output as requiring executable stack"), NULL); |
7c414435 DM |
1273 | DEFINE_bool(initfirst, options::DASH_Z, '\0', false, |
1274 | N_("Mark DSO to be initialized first at runtime"), | |
1275 | NULL); | |
1276 | DEFINE_bool(interpose, options::DASH_Z, '\0', false, | |
1277 | N_("Mark object to interpose all DSOs but executable"), | |
1278 | NULL); | |
6a9da32a CC |
1279 | DEFINE_bool_alias(lazy, now, options::DASH_Z, '\0', |
1280 | N_("Mark object for lazy runtime binding (default)"), | |
1281 | NULL, true); | |
7c414435 DM |
1282 | DEFINE_bool(loadfltr, options::DASH_Z, '\0', false, |
1283 | N_("Mark object requiring immediate process"), | |
1284 | NULL); | |
e1c74d60 | 1285 | DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0, |
0c6e6c39 | 1286 | N_("Set maximum page size to SIZE"), N_("SIZE")); |
30bc8c46 ILT |
1287 | DEFINE_bool(muldefs, options::DASH_Z, '\0', false, |
1288 | N_("Allow multiple definitions of symbols"), | |
1289 | NULL); | |
1290 | // copyreloc is here in the list because there is only -z | |
1291 | // nocopyreloc, not -z copyreloc. | |
966d4097 DK |
1292 | DEFINE_bool(copyreloc, options::DASH_Z, '\0', true, |
1293 | NULL, | |
1294 | N_("Do not create copy relocs")); | |
7c414435 DM |
1295 | DEFINE_bool(nodefaultlib, options::DASH_Z, '\0', false, |
1296 | N_("Mark object not to use default search paths"), | |
1297 | NULL); | |
1298 | DEFINE_bool(nodelete, options::DASH_Z, '\0', false, | |
1299 | N_("Mark DSO non-deletable at runtime"), | |
1300 | NULL); | |
1301 | DEFINE_bool(nodlopen, options::DASH_Z, '\0', false, | |
1302 | N_("Mark DSO not available to dlopen"), | |
1303 | NULL); | |
1304 | DEFINE_bool(nodump, options::DASH_Z, '\0', false, | |
1305 | N_("Mark DSO not available to dldump"), | |
1306 | NULL); | |
e1c74d60 | 1307 | DEFINE_bool(noexecstack, options::DASH_Z, '\0', false, |
0c6e6c39 | 1308 | N_("Mark output as not requiring executable stack"), NULL); |
e1c74d60 ILT |
1309 | DEFINE_bool(now, options::DASH_Z, '\0', false, |
1310 | N_("Mark object for immediate function binding"), | |
1311 | NULL); | |
7be8330a CD |
1312 | DEFINE_bool(origin, options::DASH_Z, '\0', false, |
1313 | N_("Mark DSO to indicate that needs immediate $ORIGIN " | |
0c6e6c39 | 1314 | "processing at runtime"), NULL); |
e1c74d60 ILT |
1315 | DEFINE_bool(relro, options::DASH_Z, '\0', false, |
1316 | N_("Where possible mark variables read-only after relocation"), | |
1317 | N_("Don't mark variables read-only after relocation")); | |
ffeef7df ILT |
1318 | DEFINE_bool(text, options::DASH_Z, '\0', false, |
1319 | N_("Do not permit relocations in read-only segments"), | |
611062c0 | 1320 | N_("Permit relocations in read-only segments (default)")); |
ffeef7df ILT |
1321 | DEFINE_bool_alias(textoff, text, options::DASH_Z, '\0', |
1322 | N_("Permit relocations in read-only segments (default)"), | |
1323 | NULL, true); | |
bae7f79e | 1324 | |
ee1fe73e ILT |
1325 | public: |
1326 | typedef options::Dir_list Dir_list; | |
ca3a67a5 | 1327 | |
ee1fe73e | 1328 | General_options(); |
61ba1cf9 | 1329 | |
ee1fe73e ILT |
1330 | // Does post-processing on flags, making sure they all have |
1331 | // non-conflicting values. Also converts some flags from their | |
1332 | // "standard" types (string, etc), to another type (enum, DirList), | |
1333 | // which can be accessed via a separate method. Dies if it notices | |
1334 | // any problems. | |
1335 | void finalize(); | |
516cb3d0 | 1336 | |
459c9f1c ILT |
1337 | // True if we printed the version information. |
1338 | bool | |
1339 | printed_version() const | |
1340 | { return this->printed_version_; } | |
1341 | ||
ee1fe73e ILT |
1342 | // The macro defines output() (based on --output), but that's a |
1343 | // generic name. Provide this alternative name, which is clearer. | |
8851ecca | 1344 | const char* |
ee1fe73e ILT |
1345 | output_file_name() const |
1346 | { return this->output(); } | |
92e059d8 | 1347 | |
8851ecca ILT |
1348 | // This is not defined via a flag, but combines flags to say whether |
1349 | // the output is position-independent or not. | |
1350 | bool | |
1351 | output_is_position_independent() const | |
374ad285 | 1352 | { return this->shared() || this->pie(); } |
8851ecca | 1353 | |
183fd0e3 AO |
1354 | // Return true if the output is something that can be exec()ed, such |
1355 | // as a static executable, or a position-dependent or | |
1356 | // position-independent executable, but not a dynamic library or an | |
1357 | // object file. | |
1358 | bool | |
1359 | output_is_executable() const | |
374ad285 | 1360 | { return !this->shared() && !this->relocatable(); } |
183fd0e3 | 1361 | |
ee1fe73e ILT |
1362 | // This would normally be static(), and defined automatically, but |
1363 | // since static is a keyword, we need to come up with our own name. | |
bae7f79e ILT |
1364 | bool |
1365 | is_static() const | |
ee1fe73e | 1366 | { return static_; } |
756ac4a8 | 1367 | |
ee1fe73e ILT |
1368 | // In addition to getting the input and output formats as a string |
1369 | // (via format() and oformat()), we also give access as an enum. | |
1370 | enum Object_format | |
1371 | { | |
1372 | // Ordinary ELF. | |
1373 | OBJECT_FORMAT_ELF, | |
1374 | // Straight binary format. | |
1375 | OBJECT_FORMAT_BINARY | |
1376 | }; | |
fe9a4c12 | 1377 | |
e6a307ba ILT |
1378 | // Convert a string to an Object_format. Gives an error if the |
1379 | // string is not recognized. | |
1380 | static Object_format | |
1381 | string_to_object_format(const char* arg); | |
1382 | ||
ee1fe73e ILT |
1383 | // Note: these functions are not very fast. |
1384 | Object_format format_enum() const; | |
1385 | Object_format oformat_enum() const; | |
fe9a4c12 | 1386 | |
fd9d194f ILT |
1387 | // Return whether FILENAME is in a system directory. |
1388 | bool | |
1389 | is_in_system_directory(const std::string& name) const; | |
1390 | ||
8c604651 CS |
1391 | // RETURN whether SYMBOL_NAME should be kept, according to symbols_to_retain_. |
1392 | bool | |
1393 | should_retain_symbol(const char* symbol_name) const | |
1394 | { | |
1395 | if (symbols_to_retain_.empty()) // means flag wasn't specified | |
0c6e6c39 | 1396 | return true; |
8c604651 CS |
1397 | return symbols_to_retain_.find(symbol_name) != symbols_to_retain_.end(); |
1398 | } | |
1399 | ||
ee1fe73e ILT |
1400 | // These are the best way to get access to the execstack state, |
1401 | // not execstack() and noexecstack() which are hard to use properly. | |
35cdfc9a ILT |
1402 | bool |
1403 | is_execstack_set() const | |
ee1fe73e | 1404 | { return this->execstack_status_ != EXECSTACK_FROM_INPUT; } |
35cdfc9a ILT |
1405 | |
1406 | bool | |
1407 | is_stack_executable() const | |
ee1fe73e | 1408 | { return this->execstack_status_ == EXECSTACK_YES; } |
c7912668 | 1409 | |
032ce4e9 ST |
1410 | bool |
1411 | icf_enabled() const | |
1412 | { return this->icf_status_ != ICF_NONE; } | |
1413 | ||
1414 | bool | |
1415 | icf_safe_folding() const | |
1416 | { return this->icf_status_ == ICF_SAFE; } | |
1417 | ||
086a1841 ILT |
1418 | // The --demangle option takes an optional string, and there is also |
1419 | // a --no-demangle option. This is the best way to decide whether | |
1420 | // to demangle or not. | |
1421 | bool | |
1422 | do_demangle() const | |
1423 | { return this->do_demangle_; } | |
1424 | ||
89fc3421 CC |
1425 | // Returns TRUE if any plugin libraries have been loaded. |
1426 | bool | |
1427 | has_plugins() const | |
1428 | { return this->plugins_ != NULL; } | |
1429 | ||
1430 | // Return a pointer to the plugin manager. | |
1431 | Plugin_manager* | |
1432 | plugins() const | |
1433 | { return this->plugins_; } | |
1434 | ||
c82fbeee CS |
1435 | // True iff SYMBOL was found in the file specified by dynamic-list. |
1436 | bool | |
1437 | in_dynamic_list(const char* symbol) const | |
1438 | { return this->dynamic_list_.version_script_info()->symbol_is_local(symbol); } | |
1439 | ||
fd834e57 CC |
1440 | // True if a --dynamic-list script was provided. |
1441 | bool | |
1442 | have_dynamic_list() const | |
1443 | { return this->have_dynamic_list_; } | |
1444 | ||
6affe781 ILT |
1445 | // Finalize the dynamic list. |
1446 | void | |
1447 | finalize_dynamic_list() | |
1448 | { this->dynamic_list_.version_script_info()->finalize(); } | |
1449 | ||
8c21d9d3 CC |
1450 | // The mode selected by the --incremental options. |
1451 | enum Incremental_mode | |
1452 | { | |
1453 | // No incremental linking (--no-incremental). | |
1454 | INCREMENTAL_OFF, | |
1455 | // Incremental update only (--incremental-update). | |
1456 | INCREMENTAL_UPDATE, | |
1457 | // Force a full link, but prepare for subsequent incremental link | |
1458 | // (--incremental-full). | |
1459 | INCREMENTAL_FULL, | |
1460 | // Incremental update if possible, fallback to full link (--incremental). | |
1461 | INCREMENTAL_AUTO | |
1462 | }; | |
1463 | ||
1464 | // The incremental linking mode. | |
1465 | Incremental_mode | |
1466 | incremental_mode() const | |
1467 | { return this->incremental_mode_; } | |
1468 | ||
266d0a74 ILT |
1469 | // The disposition given by the --incremental-changed, |
1470 | // --incremental-unchanged or --incremental-unknown option. The | |
1471 | // value may change as we proceed parsing the command line flags. | |
1472 | Incremental_disposition | |
1473 | incremental_disposition() const | |
1474 | { return this->incremental_disposition_; } | |
1475 | ||
221597a5 CC |
1476 | // The disposition to use for startup files (those that precede the |
1477 | // first --incremental-changed, etc. option). | |
1478 | Incremental_disposition | |
1479 | incremental_startup_disposition() const | |
1480 | { return this->incremental_startup_disposition_; } | |
1481 | ||
65514900 CC |
1482 | // Return true if S is the name of a library excluded from automatic |
1483 | // symbol export. | |
1484 | bool | |
ca09d69a | 1485 | check_excluded_libs(const std::string &s) const; |
65514900 | 1486 | |
a192ba05 ILT |
1487 | // If an explicit start address was given for section SECNAME with |
1488 | // the --section-start option, return true and set *PADDR to the | |
1489 | // address. Otherwise return false. | |
1490 | bool | |
1491 | section_start(const char* secname, uint64_t* paddr) const; | |
1492 | ||
ea0d8c47 ILT |
1493 | // Return whether any --section-start option was used. |
1494 | bool | |
1495 | any_section_start() const | |
1496 | { return !this->section_starts_.empty(); } | |
1497 | ||
9b2fd367 DK |
1498 | enum Fix_v4bx |
1499 | { | |
1500 | // Leave original instruction. | |
1501 | FIX_V4BX_NONE, | |
1502 | // Replace instruction. | |
1503 | FIX_V4BX_REPLACE, | |
1504 | // Generate an interworking veneer. | |
1505 | FIX_V4BX_INTERWORKING | |
1506 | }; | |
1507 | ||
1508 | Fix_v4bx | |
1509 | fix_v4bx() const | |
1510 | { return (this->fix_v4bx_); } | |
1511 | ||
7296d933 DK |
1512 | enum Endianness |
1513 | { | |
1514 | ENDIANNESS_NOT_SET, | |
1515 | ENDIANNESS_BIG, | |
1516 | ENDIANNESS_LITTLE | |
1517 | }; | |
1518 | ||
1519 | Endianness | |
1520 | endianness() const | |
1521 | { return this->endianness_; } | |
1522 | ||
bae7f79e | 1523 | private: |
dbe717ef ILT |
1524 | // Don't copy this structure. |
1525 | General_options(const General_options&); | |
1526 | General_options& operator=(const General_options&); | |
1527 | ||
35cdfc9a ILT |
1528 | // Whether to mark the stack as executable. |
1529 | enum Execstack | |
1530 | { | |
1531 | // Not set on command line. | |
1532 | EXECSTACK_FROM_INPUT, | |
ee1fe73e | 1533 | // Mark the stack as executable (-z execstack). |
35cdfc9a | 1534 | EXECSTACK_YES, |
ee1fe73e | 1535 | // Mark the stack as not executable (-z noexecstack). |
35cdfc9a ILT |
1536 | EXECSTACK_NO |
1537 | }; | |
1538 | ||
032ce4e9 ST |
1539 | enum Icf_status |
1540 | { | |
1541 | // Do not fold any functions (Default or --icf=none). | |
1542 | ICF_NONE, | |
1543 | // All functions are candidates for folding. (--icf=all). | |
0c6e6c39 | 1544 | ICF_ALL, |
032ce4e9 ST |
1545 | // Only ctors and dtors are candidates for folding. (--icf=safe). |
1546 | ICF_SAFE | |
1547 | }; | |
1548 | ||
1549 | void | |
1550 | set_icf_status(Icf_status value) | |
1551 | { this->icf_status_ = value; } | |
1552 | ||
92e059d8 | 1553 | void |
ee1fe73e | 1554 | set_execstack_status(Execstack value) |
086a1841 ILT |
1555 | { this->execstack_status_ = value; } |
1556 | ||
1557 | void | |
1558 | set_do_demangle(bool value) | |
1559 | { this->do_demangle_ = value; } | |
92e059d8 | 1560 | |
bae7f79e | 1561 | void |
45aa233b | 1562 | set_static(bool value) |
ee1fe73e | 1563 | { static_ = value; } |
652ec9bd | 1564 | |
ee1fe73e | 1565 | // These are called by finalize() to set up the search-path correctly. |
35cdfc9a | 1566 | void |
3f3cddf1 | 1567 | add_to_library_path_with_sysroot(const std::string& arg) |
ee1fe73e | 1568 | { this->add_search_directory_to_library_path(Search_directory(arg, true)); } |
c7912668 | 1569 | |
ad2d6943 ILT |
1570 | // Apply any sysroot to the directory lists. |
1571 | void | |
1572 | add_sysroot(); | |
086a1841 | 1573 | |
89fc3421 CC |
1574 | // Add a plugin and its arguments to the list of plugins. |
1575 | void | |
ca09d69a | 1576 | add_plugin(const char* filename); |
4674ecfc CC |
1577 | |
1578 | // Add a plugin option. | |
1579 | void | |
1580 | add_plugin_option(const char* opt); | |
89fc3421 | 1581 | |
459c9f1c ILT |
1582 | // Whether we printed version information. |
1583 | bool printed_version_; | |
086a1841 ILT |
1584 | // Whether to mark the stack as executable. |
1585 | Execstack execstack_status_; | |
032ce4e9 ST |
1586 | // Whether to do code folding. |
1587 | Icf_status icf_status_; | |
086a1841 ILT |
1588 | // Whether to do a static link. |
1589 | bool static_; | |
1590 | // Whether to do demangling. | |
1591 | bool do_demangle_; | |
89fc3421 CC |
1592 | // List of plugin libraries. |
1593 | Plugin_manager* plugins_; | |
c82fbeee CS |
1594 | // The parsed output of --dynamic-list files. For convenience in |
1595 | // script.cc, we store this as a Script_options object, even though | |
1596 | // we only use a single Version_tree from it. | |
1597 | Script_options dynamic_list_; | |
fd834e57 CC |
1598 | // Whether a --dynamic-list file was provided. |
1599 | bool have_dynamic_list_; | |
8c21d9d3 CC |
1600 | // The incremental linking mode. |
1601 | Incremental_mode incremental_mode_; | |
266d0a74 ILT |
1602 | // The disposition given by the --incremental-changed, |
1603 | // --incremental-unchanged or --incremental-unknown option. The | |
1604 | // value may change as we proceed parsing the command line flags. | |
1605 | Incremental_disposition incremental_disposition_; | |
221597a5 CC |
1606 | // The disposition to use for startup files (those marked |
1607 | // INCREMENTAL_STARTUP). | |
1608 | Incremental_disposition incremental_startup_disposition_; | |
459c9f1c | 1609 | // Whether we have seen one of the options that require incremental |
221597a5 CC |
1610 | // build (--incremental-changed, --incremental-unchanged, |
1611 | // --incremental-unknown, or --incremental-startup-unchanged). | |
266d0a74 | 1612 | bool implicit_incremental_; |
8c604651 | 1613 | // Libraries excluded from automatic export, via --exclude-libs. |
65514900 | 1614 | Unordered_set<std::string> excluded_libs_; |
8c604651 CS |
1615 | // List of symbol-names to keep, via -retain-symbol-info. |
1616 | Unordered_set<std::string> symbols_to_retain_; | |
a192ba05 ILT |
1617 | // Map from section name to address from --section-start. |
1618 | std::map<std::string, uint64_t> section_starts_; | |
9b2fd367 DK |
1619 | // Whether to process armv4 bx instruction relocation. |
1620 | Fix_v4bx fix_v4bx_; | |
7296d933 DK |
1621 | // Endianness. |
1622 | Endianness endianness_; | |
bae7f79e ILT |
1623 | }; |
1624 | ||
ee1fe73e ILT |
1625 | // The position-dependent options. We use this to store the state of |
1626 | // the commandline at a particular point in parsing for later | |
1627 | // reference. For instance, if we see "ld --whole-archive foo.a | |
1628 | // --no-whole-archive," we want to store the whole-archive option with | |
1629 | // foo.a, so when the time comes to parse foo.a we know we should do | |
1630 | // it in whole-archive mode. We could store all of General_options, | |
1631 | // but that's big, so we just pick the subset of flags that actually | |
1632 | // change in a position-dependent way. | |
1633 | ||
1634 | #define DEFINE_posdep(varname__, type__) \ | |
1635 | public: \ | |
1636 | type__ \ | |
1637 | varname__() const \ | |
1638 | { return this->varname__##_; } \ | |
0c6e6c39 | 1639 | \ |
ee1fe73e ILT |
1640 | void \ |
1641 | set_##varname__(type__ value) \ | |
1642 | { this->varname__##_ = value; } \ | |
1643 | private: \ | |
1644 | type__ varname__##_ | |
bae7f79e ILT |
1645 | |
1646 | class Position_dependent_options | |
1647 | { | |
1648 | public: | |
ee1fe73e | 1649 | Position_dependent_options(const General_options& options |
0c6e6c39 | 1650 | = Position_dependent_options::default_options_) |
ee1fe73e | 1651 | { copy_from_options(options); } |
bae7f79e | 1652 | |
ee1fe73e ILT |
1653 | void copy_from_options(const General_options& options) |
1654 | { | |
1655 | this->set_as_needed(options.as_needed()); | |
1656 | this->set_Bdynamic(options.Bdynamic()); | |
1657 | this->set_format_enum(options.format_enum()); | |
1658 | this->set_whole_archive(options.whole_archive()); | |
266d0a74 | 1659 | this->set_incremental_disposition(options.incremental_disposition()); |
ee1fe73e | 1660 | } |
bc644c6c | 1661 | |
ee1fe73e ILT |
1662 | DEFINE_posdep(as_needed, bool); |
1663 | DEFINE_posdep(Bdynamic, bool); | |
1664 | DEFINE_posdep(format_enum, General_options::Object_format); | |
1665 | DEFINE_posdep(whole_archive, bool); | |
266d0a74 | 1666 | DEFINE_posdep(incremental_disposition, Incremental_disposition); |
7cc619c3 | 1667 | |
dbe717ef | 1668 | private: |
ee1fe73e ILT |
1669 | // This is a General_options with everything set to its default |
1670 | // value. A Position_dependent_options created with no argument | |
1671 | // will take its values from here. | |
1672 | static General_options default_options_; | |
bae7f79e ILT |
1673 | }; |
1674 | ||
ee1fe73e | 1675 | |
bae7f79e ILT |
1676 | // A single file or library argument from the command line. |
1677 | ||
ead1e424 | 1678 | class Input_file_argument |
bae7f79e ILT |
1679 | { |
1680 | public: | |
ae3b5189 CD |
1681 | enum Input_file_type |
1682 | { | |
1683 | // A regular file, name used as-is, not searched. | |
1684 | INPUT_FILE_TYPE_FILE, | |
1685 | // A library name. When used, "lib" will be prepended and ".so" or | |
1686 | // ".a" appended to make a filename, and that filename will be searched | |
1687 | // for using the -L paths. | |
1688 | INPUT_FILE_TYPE_LIBRARY, | |
1689 | // A regular file, name used as-is, but searched using the -L paths. | |
1690 | INPUT_FILE_TYPE_SEARCHED_FILE | |
1691 | }; | |
1692 | ||
51dee2fe | 1693 | // name: file name or library name |
ae3b5189 | 1694 | // type: the type of this input file. |
51dee2fe ILT |
1695 | // extra_search_path: an extra directory to look for the file, prior |
1696 | // to checking the normal library search path. If this is "", | |
1697 | // then no extra directory is added. | |
88dd47ac | 1698 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 1699 | // options: The position dependent options at this point in the |
ad2d6943 | 1700 | // command line, such as --whole-archive. |
ead1e424 | 1701 | Input_file_argument() |
ae3b5189 | 1702 | : name_(), type_(INPUT_FILE_TYPE_FILE), extra_search_path_(""), |
cdc29364 | 1703 | just_symbols_(false), options_(), arg_serial_(0) |
ead1e424 ILT |
1704 | { } |
1705 | ||
2ea97941 | 1706 | Input_file_argument(const char* name, Input_file_type type, |
0c6e6c39 RM |
1707 | const char* extra_search_path, |
1708 | bool just_symbols, | |
1709 | const Position_dependent_options& options) | |
2ea97941 | 1710 | : name_(name), type_(type), extra_search_path_(extra_search_path), |
cdc29364 | 1711 | just_symbols_(just_symbols), options_(options), arg_serial_(0) |
ee1fe73e ILT |
1712 | { } |
1713 | ||
1714 | // You can also pass in a General_options instance instead of a | |
1715 | // Position_dependent_options. In that case, we extract the | |
1716 | // position-independent vars from the General_options and only store | |
1717 | // those. | |
2ea97941 | 1718 | Input_file_argument(const char* name, Input_file_type type, |
0c6e6c39 RM |
1719 | const char* extra_search_path, |
1720 | bool just_symbols, | |
1721 | const General_options& options) | |
2ea97941 | 1722 | : name_(name), type_(type), extra_search_path_(extra_search_path), |
cdc29364 | 1723 | just_symbols_(just_symbols), options_(options), arg_serial_(0) |
bae7f79e ILT |
1724 | { } |
1725 | ||
1726 | const char* | |
1727 | name() const | |
dbe717ef | 1728 | { return this->name_.c_str(); } |
bae7f79e ILT |
1729 | |
1730 | const Position_dependent_options& | |
1731 | options() const | |
1732 | { return this->options_; } | |
1733 | ||
1734 | bool | |
1735 | is_lib() const | |
ae3b5189 CD |
1736 | { return type_ == INPUT_FILE_TYPE_LIBRARY; } |
1737 | ||
1738 | bool | |
1739 | is_searched_file() const | |
1740 | { return type_ == INPUT_FILE_TYPE_SEARCHED_FILE; } | |
bae7f79e | 1741 | |
51dee2fe ILT |
1742 | const char* |
1743 | extra_search_path() const | |
1744 | { | |
1745 | return (this->extra_search_path_.empty() | |
0c6e6c39 RM |
1746 | ? NULL |
1747 | : this->extra_search_path_.c_str()); | |
51dee2fe ILT |
1748 | } |
1749 | ||
88dd47ac ILT |
1750 | // Return whether we should only read symbols from this file. |
1751 | bool | |
1752 | just_symbols() const | |
1753 | { return this->just_symbols_; } | |
1754 | ||
51dee2fe ILT |
1755 | // Return whether this file may require a search using the -L |
1756 | // options. | |
1757 | bool | |
1758 | may_need_search() const | |
ae3b5189 CD |
1759 | { |
1760 | return (this->is_lib() | |
1761 | || this->is_searched_file() | |
1762 | || !this->extra_search_path_.empty()); | |
1763 | } | |
51dee2fe | 1764 | |
cdc29364 CC |
1765 | // Set the serial number for this argument. |
1766 | void | |
1767 | set_arg_serial(unsigned int arg_serial) | |
1768 | { this->arg_serial_ = arg_serial; } | |
1769 | ||
1770 | // Get the serial number. | |
1771 | unsigned int | |
1772 | arg_serial() const | |
1773 | { return this->arg_serial_; } | |
1774 | ||
bae7f79e | 1775 | private: |
dbe717ef ILT |
1776 | // We use std::string, not const char*, here for convenience when |
1777 | // using script files, so that we do not have to preserve the string | |
1778 | // in that case. | |
1779 | std::string name_; | |
ae3b5189 | 1780 | Input_file_type type_; |
51dee2fe | 1781 | std::string extra_search_path_; |
88dd47ac | 1782 | bool just_symbols_; |
bae7f79e | 1783 | Position_dependent_options options_; |
cdc29364 CC |
1784 | // A unique index for this file argument in the argument list. |
1785 | unsigned int arg_serial_; | |
bae7f79e ILT |
1786 | }; |
1787 | ||
ead1e424 ILT |
1788 | // A file or library, or a group, from the command line. |
1789 | ||
1790 | class Input_argument | |
1791 | { | |
1792 | public: | |
1793 | // Create a file or library argument. | |
2ea97941 | 1794 | explicit Input_argument(Input_file_argument file) |
c7975edd | 1795 | : is_file_(true), file_(file), group_(NULL), lib_(NULL), script_info_(NULL) |
ead1e424 ILT |
1796 | { } |
1797 | ||
1798 | // Create a group argument. | |
2ea97941 | 1799 | explicit Input_argument(Input_file_group* group) |
c7975edd | 1800 | : is_file_(false), group_(group), lib_(NULL), script_info_(NULL) |
b0193076 RÁE |
1801 | { } |
1802 | ||
1803 | // Create a lib argument. | |
1804 | explicit Input_argument(Input_file_lib* lib) | |
c7975edd | 1805 | : is_file_(false), group_(NULL), lib_(lib), script_info_(NULL) |
ead1e424 ILT |
1806 | { } |
1807 | ||
1808 | // Return whether this is a file. | |
1809 | bool | |
1810 | is_file() const | |
1811 | { return this->is_file_; } | |
1812 | ||
1813 | // Return whether this is a group. | |
1814 | bool | |
1815 | is_group() const | |
b0193076 RÁE |
1816 | { return !this->is_file_ && this->lib_ == NULL; } |
1817 | ||
1818 | // Return whether this is a lib. | |
1819 | bool | |
1820 | is_lib() const | |
1821 | { return this->lib_ != NULL; } | |
ead1e424 ILT |
1822 | |
1823 | // Return the information about the file. | |
1824 | const Input_file_argument& | |
1825 | file() const | |
1826 | { | |
a3ad94ed | 1827 | gold_assert(this->is_file_); |
ead1e424 ILT |
1828 | return this->file_; |
1829 | } | |
1830 | ||
1831 | // Return the information about the group. | |
1832 | const Input_file_group* | |
1833 | group() const | |
1834 | { | |
a3ad94ed | 1835 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1836 | return this->group_; |
1837 | } | |
1838 | ||
1839 | Input_file_group* | |
1840 | group() | |
1841 | { | |
a3ad94ed | 1842 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1843 | return this->group_; |
1844 | } | |
1845 | ||
b0193076 RÁE |
1846 | // Return the information about the lib. |
1847 | const Input_file_lib* | |
1848 | lib() const | |
1849 | { | |
1850 | gold_assert(!this->is_file_); | |
1851 | gold_assert(this->lib_); | |
1852 | return this->lib_; | |
1853 | } | |
1854 | ||
1855 | Input_file_lib* | |
1856 | lib() | |
1857 | { | |
1858 | gold_assert(!this->is_file_); | |
1859 | gold_assert(this->lib_); | |
1860 | return this->lib_; | |
1861 | } | |
1862 | ||
c7975edd CC |
1863 | // If a script generated this argument, store a pointer to the script info. |
1864 | // Currently used only for recording incremental link information. | |
1865 | void | |
1866 | set_script_info(Script_info* info) | |
1867 | { this->script_info_ = info; } | |
1868 | ||
1869 | Script_info* | |
1870 | script_info() const | |
1871 | { return this->script_info_; } | |
1872 | ||
ead1e424 ILT |
1873 | private: |
1874 | bool is_file_; | |
1875 | Input_file_argument file_; | |
1876 | Input_file_group* group_; | |
b0193076 | 1877 | Input_file_lib* lib_; |
c7975edd | 1878 | Script_info* script_info_; |
ead1e424 ILT |
1879 | }; |
1880 | ||
072fe7ce ILT |
1881 | typedef std::vector<Input_argument> Input_argument_list; |
1882 | ||
ead1e424 ILT |
1883 | // A group from the command line. This is a set of arguments within |
1884 | // --start-group ... --end-group. | |
1885 | ||
1886 | class Input_file_group | |
92e059d8 | 1887 | { |
ead1e424 | 1888 | public: |
072fe7ce | 1889 | typedef Input_argument_list::const_iterator const_iterator; |
ead1e424 ILT |
1890 | |
1891 | Input_file_group() | |
1892 | : files_() | |
1893 | { } | |
1894 | ||
1895 | // Add a file to the end of the group. | |
c7975edd | 1896 | Input_argument& |
ead1e424 | 1897 | add_file(const Input_file_argument& arg) |
c7975edd CC |
1898 | { |
1899 | this->files_.push_back(Input_argument(arg)); | |
1900 | return this->files_.back(); | |
1901 | } | |
ead1e424 ILT |
1902 | |
1903 | // Iterators to iterate over the group contents. | |
1904 | ||
1905 | const_iterator | |
1906 | begin() const | |
1907 | { return this->files_.begin(); } | |
1908 | ||
1909 | const_iterator | |
1910 | end() const | |
1911 | { return this->files_.end(); } | |
1912 | ||
1913 | private: | |
072fe7ce | 1914 | Input_argument_list files_; |
92e059d8 ILT |
1915 | }; |
1916 | ||
b0193076 RÁE |
1917 | // A lib from the command line. This is a set of arguments within |
1918 | // --start-lib ... --end-lib. | |
1919 | ||
1920 | class Input_file_lib | |
1921 | { | |
1922 | public: | |
1923 | typedef Input_argument_list::const_iterator const_iterator; | |
1924 | ||
1925 | Input_file_lib(const Position_dependent_options& options) | |
1926 | : files_(), options_(options) | |
1927 | { } | |
1928 | ||
1929 | // Add a file to the end of the lib. | |
c7975edd | 1930 | Input_argument& |
b0193076 | 1931 | add_file(const Input_file_argument& arg) |
c7975edd CC |
1932 | { |
1933 | this->files_.push_back(Input_argument(arg)); | |
1934 | return this->files_.back(); | |
1935 | } | |
b0193076 RÁE |
1936 | |
1937 | const Position_dependent_options& | |
1938 | options() const | |
1939 | { return this->options_; } | |
1940 | ||
1941 | // Iterators to iterate over the lib contents. | |
1942 | ||
1943 | const_iterator | |
1944 | begin() const | |
1945 | { return this->files_.begin(); } | |
1946 | ||
1947 | const_iterator | |
1948 | end() const | |
1949 | { return this->files_.end(); } | |
1950 | ||
1951 | size_t | |
1952 | size() const | |
1953 | { return this->files_.size(); } | |
1954 | ||
1955 | private: | |
1956 | Input_argument_list files_; | |
1957 | Position_dependent_options options_; | |
1958 | }; | |
1959 | ||
dbe717ef ILT |
1960 | // A list of files from the command line or a script. |
1961 | ||
1962 | class Input_arguments | |
1963 | { | |
1964 | public: | |
dbe717ef ILT |
1965 | typedef Input_argument_list::const_iterator const_iterator; |
1966 | ||
1967 | Input_arguments() | |
cdc29364 | 1968 | : input_argument_list_(), in_group_(false), in_lib_(false), file_count_(0) |
dbe717ef ILT |
1969 | { } |
1970 | ||
1971 | // Add a file. | |
c7975edd | 1972 | Input_argument& |
cdc29364 | 1973 | add_file(Input_file_argument& arg); |
dbe717ef ILT |
1974 | |
1975 | // Start a group (the --start-group option). | |
1976 | void | |
1977 | start_group(); | |
1978 | ||
1979 | // End a group (the --end-group option). | |
1980 | void | |
1981 | end_group(); | |
1982 | ||
b0193076 RÁE |
1983 | // Start a lib (the --start-lib option). |
1984 | void | |
1985 | start_lib(const Position_dependent_options&); | |
1986 | ||
1987 | // End a lib (the --end-lib option). | |
1988 | void | |
1989 | end_lib(); | |
1990 | ||
dbe717ef ILT |
1991 | // Return whether we are currently in a group. |
1992 | bool | |
1993 | in_group() const | |
1994 | { return this->in_group_; } | |
1995 | ||
b0193076 RÁE |
1996 | // Return whether we are currently in a lib. |
1997 | bool | |
1998 | in_lib() const | |
1999 | { return this->in_lib_; } | |
2000 | ||
fe9a4c12 ILT |
2001 | // The number of entries in the list. |
2002 | int | |
2003 | size() const | |
2004 | { return this->input_argument_list_.size(); } | |
2005 | ||
dbe717ef ILT |
2006 | // Iterators to iterate over the list of input files. |
2007 | ||
2008 | const_iterator | |
2009 | begin() const | |
2010 | { return this->input_argument_list_.begin(); } | |
2011 | ||
2012 | const_iterator | |
2013 | end() const | |
2014 | { return this->input_argument_list_.end(); } | |
2015 | ||
2016 | // Return whether the list is empty. | |
2017 | bool | |
2018 | empty() const | |
2019 | { return this->input_argument_list_.empty(); } | |
2020 | ||
cdc29364 CC |
2021 | // Return the number of input files. This may be larger than |
2022 | // input_argument_list_.size(), because of files that are part | |
2023 | // of groups or libs. | |
2024 | int | |
2025 | number_of_input_files() const | |
2026 | { return this->file_count_; } | |
2027 | ||
dbe717ef ILT |
2028 | private: |
2029 | Input_argument_list input_argument_list_; | |
2030 | bool in_group_; | |
b0193076 | 2031 | bool in_lib_; |
cdc29364 | 2032 | unsigned int file_count_; |
dbe717ef ILT |
2033 | }; |
2034 | ||
ee1fe73e ILT |
2035 | |
2036 | // All the information read from the command line. These are held in | |
2037 | // three separate structs: one to hold the options (--foo), one to | |
2038 | // hold the filenames listed on the commandline, and one to hold | |
2039 | // linker script information. This third is not a subset of the other | |
2040 | // two because linker scripts can be specified either as options (via | |
2041 | // -T) or as a file. | |
bae7f79e ILT |
2042 | |
2043 | class Command_line | |
2044 | { | |
2045 | public: | |
ead1e424 ILT |
2046 | typedef Input_arguments::const_iterator const_iterator; |
2047 | ||
a5dc0706 | 2048 | Command_line(); |
bae7f79e ILT |
2049 | |
2050 | // Process the command line options. This will exit with an | |
2051 | // appropriate error message if an unrecognized option is seen. | |
2052 | void | |
ee1fe73e | 2053 | process(int argc, const char** argv); |
bae7f79e | 2054 | |
a0451b38 | 2055 | // Process one command-line option. This takes the index of argv to |
ee1fe73e ILT |
2056 | // process, and returns the index for the next option. no_more_options |
2057 | // is set to true if argv[i] is "--". | |
61ba1cf9 | 2058 | int |
ee1fe73e | 2059 | process_one_option(int argc, const char** argv, int i, |
0c6e6c39 | 2060 | bool* no_more_options); |
3c2fafa5 | 2061 | |
61ba1cf9 | 2062 | // Get the general options. |
bae7f79e ILT |
2063 | const General_options& |
2064 | options() const | |
2065 | { return this->options_; } | |
2066 | ||
3c2fafa5 ILT |
2067 | // Get the position dependent options. |
2068 | const Position_dependent_options& | |
2069 | position_dependent_options() const | |
2070 | { return this->position_options_; } | |
2071 | ||
a5dc0706 ILT |
2072 | // Get the linker-script options. |
2073 | Script_options& | |
e5756efb | 2074 | script_options() |
a5dc0706 | 2075 | { return this->script_options_; } |
e5756efb | 2076 | |
6affe781 | 2077 | // Finalize the version-script options and return them. |
a5dc0706 | 2078 | const Version_script_info& |
6affe781 | 2079 | version_script(); |
e5756efb | 2080 | |
ee1fe73e ILT |
2081 | // Get the input files. |
2082 | Input_arguments& | |
2083 | inputs() | |
2084 | { return this->inputs_; } | |
2085 | ||
fe9a4c12 ILT |
2086 | // The number of input files. |
2087 | int | |
2088 | number_of_input_files() const | |
cdc29364 | 2089 | { return this->inputs_.number_of_input_files(); } |
fe9a4c12 | 2090 | |
ead1e424 ILT |
2091 | // Iterators to iterate over the list of input files. |
2092 | ||
2093 | const_iterator | |
2094 | begin() const | |
2095 | { return this->inputs_.begin(); } | |
2096 | ||
2097 | const_iterator | |
2098 | end() const | |
2099 | { return this->inputs_.end(); } | |
bae7f79e ILT |
2100 | |
2101 | private: | |
ead1e424 ILT |
2102 | Command_line(const Command_line&); |
2103 | Command_line& operator=(const Command_line&); | |
2104 | ||
293c1386 CC |
2105 | // This is a dummy class to provide a constructor that runs before |
2106 | // the constructor for the General_options. The Pre_options constructor | |
2107 | // is used as a hook to set the flag enabling the options to register | |
2108 | // themselves. | |
2109 | struct Pre_options { | |
2110 | Pre_options(); | |
2111 | }; | |
2112 | ||
2113 | // This must come before options_! | |
2114 | Pre_options pre_options_; | |
bae7f79e ILT |
2115 | General_options options_; |
2116 | Position_dependent_options position_options_; | |
a5dc0706 | 2117 | Script_options script_options_; |
ead1e424 | 2118 | Input_arguments inputs_; |
bae7f79e ILT |
2119 | }; |
2120 | ||
2121 | } // End namespace gold. | |
2122 | ||
2123 | #endif // !defined(GOLD_OPTIONS_H) |