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dbe717ef ILT |
1 | // script.h -- handle linker scripts for gold -*- C++ -*- |
2 | ||
62dfdd4d | 3 | // Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
6cb15b7f ILT |
4 | // Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
dbe717ef ILT |
23 | // We implement a subset of the original GNU ld linker script language |
24 | // for compatibility. The goal is not to implement the entire | |
25 | // language. It is merely to implement enough to handle common uses. | |
26 | // In particular we need to handle /usr/lib/libc.so on a typical | |
27 | // GNU/Linux system, and we want to handle linker scripts used by the | |
28 | // Linux kernel build. | |
29 | ||
30 | #ifndef GOLD_SCRIPT_H | |
31 | #define GOLD_SCRIPT_H | |
32 | ||
494e05f4 | 33 | #include <cstdio> |
04bf7072 | 34 | #include <string> |
e5756efb ILT |
35 | #include <vector> |
36 | ||
494e05f4 | 37 | #include "script-sections.h" |
09124467 | 38 | |
dbe717ef ILT |
39 | namespace gold |
40 | { | |
41 | ||
42 | class General_options; | |
3c2fafa5 | 43 | class Command_line; |
dbe717ef ILT |
44 | class Symbol_table; |
45 | class Layout; | |
7d9e3d98 | 46 | class Mapfile; |
3c2fafa5 | 47 | class Input_argument; |
072fe7ce | 48 | class Input_arguments; |
dbe717ef ILT |
49 | class Input_objects; |
50 | class Input_group; | |
51 | class Input_file; | |
a445fddf | 52 | class Output_segment; |
dbe717ef | 53 | class Task_token; |
3c2fafa5 | 54 | class Workqueue; |
494e05f4 ILT |
55 | struct Version_dependency_list; |
56 | struct Version_expression_list; | |
57 | struct Version_tree; | |
98e090bd ILT |
58 | struct Version_expression; |
59 | class Lazy_demangler; | |
c7975edd | 60 | class Incremental_script_entry; |
dbe717ef | 61 | |
e5756efb ILT |
62 | // This class represents an expression in a linker script. |
63 | ||
64 | class Expression | |
65 | { | |
66 | protected: | |
67 | // These should only be created by child classes. | |
68 | Expression() | |
69 | { } | |
70 | ||
71 | public: | |
72 | virtual ~Expression() | |
73 | { } | |
74 | ||
a445fddf | 75 | // Return the value of the expression which is not permitted to |
919ed24c ILT |
76 | // refer to the dot symbol. CHECK_ASSERTIONS is true if we should |
77 | // check whether assertions are true. | |
e5756efb | 78 | uint64_t |
919ed24c | 79 | eval(const Symbol_table*, const Layout*, bool check_assertions); |
e5756efb | 80 | |
a445fddf | 81 | // Return the value of an expression which is permitted to refer to |
77e65537 ILT |
82 | // the dot symbol. DOT_VALUE is the absolute value of the dot |
83 | // symbol. DOT_SECTION is the section in which dot is defined; it | |
84 | // should be NULL if the dot symbol has an absolute value (e.g., is | |
85 | // defined in a SECTIONS clause outside of any output section | |
86 | // definition). This sets *RESULT_SECTION to indicate where the | |
87 | // value is defined. If the value is absolute *RESULT_SECTION will | |
88 | // be NULL. Note that the returned value is still an absolute | |
89 | // value; to get a section relative value the caller must subtract | |
f6973bdc ILT |
90 | // the section address. If RESULT_ALIGNMENT is not NULL, this sets |
91 | // *RESULT_ALIGNMENT to the alignment of the value of that alignment | |
92 | // is larger than *RESULT_ALIGNMENT; this will only be non-zero if | |
93 | // this is an ALIGN expression. | |
a445fddf | 94 | uint64_t |
919ed24c ILT |
95 | eval_with_dot(const Symbol_table*, const Layout*, bool check_assertions, |
96 | uint64_t dot_value, Output_section* dot_section, | |
f6973bdc | 97 | Output_section** result_section, uint64_t* result_alignment); |
a445fddf ILT |
98 | |
99 | // Return the value of an expression which may or may not be | |
100 | // permitted to refer to the dot symbol, depending on | |
101 | // is_dot_available. | |
102 | uint64_t | |
919ed24c ILT |
103 | eval_maybe_dot(const Symbol_table*, const Layout*, bool check_assertions, |
104 | bool is_dot_available, uint64_t dot_value, | |
105 | Output_section* dot_section, | |
f6973bdc | 106 | Output_section** result_section, uint64_t* result_alignment); |
a445fddf | 107 | |
494e05f4 ILT |
108 | // Print the expression to the FILE. This is for debugging. |
109 | virtual void | |
110 | print(FILE*) const = 0; | |
111 | ||
e5756efb ILT |
112 | protected: |
113 | struct Expression_eval_info; | |
114 | ||
115 | public: | |
116 | // Compute the value of the expression (implemented by child class). | |
117 | // This is public rather than protected because it is called | |
118 | // directly by children of Expression on other Expression objects. | |
119 | virtual uint64_t | |
120 | value(const Expression_eval_info*) = 0; | |
121 | ||
122 | private: | |
123 | // May not be copied. | |
124 | Expression(const Expression&); | |
125 | Expression& operator=(const Expression&); | |
126 | }; | |
127 | ||
09124467 ILT |
128 | |
129 | // Version_script_info stores information parsed from the version | |
130 | // script, either provided by --version-script or as part of a linker | |
131 | // script. A single Version_script_info object per target is owned by | |
132 | // Script_options. | |
133 | ||
494e05f4 ILT |
134 | class Version_script_info |
135 | { | |
09124467 | 136 | public: |
6affe781 ILT |
137 | // The languages which can be specified in a versionn script. |
138 | enum Language | |
139 | { | |
140 | LANGUAGE_C, // No demangling. | |
141 | LANGUAGE_CXX, // C++ demangling. | |
142 | LANGUAGE_JAVA, // Java demangling. | |
143 | LANGUAGE_COUNT | |
144 | }; | |
145 | ||
146 | Version_script_info(); | |
147 | ||
09124467 ILT |
148 | ~Version_script_info(); |
149 | ||
1ef1f3d3 ILT |
150 | // Clear everything. |
151 | void | |
152 | clear(); | |
153 | ||
6affe781 ILT |
154 | // Finalize the version control information. |
155 | void | |
156 | finalize(); | |
157 | ||
158 | // Return whether the information is finalized. | |
159 | bool | |
160 | is_finalized() const | |
161 | { return this->is_finalized_; } | |
162 | ||
09124467 ILT |
163 | // Return whether any version were defined in the version script. |
164 | bool | |
165 | empty() const | |
166 | { return this->version_trees_.empty(); } | |
167 | ||
057ead22 | 168 | // If there is a version associated with SYMBOL, return true, and |
98e090bd ILT |
169 | // set *VERSION to the version, and *IS_GLOBAL to whether the symbol |
170 | // should be global. Otherwise, return false. | |
057ead22 | 171 | bool |
98e090bd ILT |
172 | get_symbol_version(const char* symbol, std::string* version, |
173 | bool* is_global) const; | |
057ead22 ILT |
174 | |
175 | // Return whether this symbol matches the local: section of some | |
176 | // version. | |
09124467 ILT |
177 | bool |
178 | symbol_is_local(const char* symbol) const | |
98e090bd ILT |
179 | { |
180 | bool is_global; | |
181 | return (this->get_symbol_version(symbol, NULL, &is_global) | |
182 | && !is_global); | |
183 | } | |
09124467 ILT |
184 | |
185 | // Return the names of versions defined in the version script. | |
09124467 ILT |
186 | std::vector<std::string> |
187 | get_versions() const; | |
188 | ||
189 | // Return the list of dependencies for this version. | |
190 | std::vector<std::string> | |
191 | get_dependencies(const char* version) const; | |
192 | ||
193 | // The following functions should only be used by the bison helper | |
194 | // functions. They allocate new structs whose memory belongs to | |
195 | // Version_script_info. The bison functions copy the information | |
196 | // from the version script into these structs. | |
197 | struct Version_dependency_list* | |
198 | allocate_dependency_list(); | |
199 | ||
200 | struct Version_expression_list* | |
201 | allocate_expression_list(); | |
202 | ||
203 | struct Version_tree* | |
204 | allocate_version_tree(); | |
205 | ||
6affe781 ILT |
206 | // Build the lookup tables after all data have been read. |
207 | void | |
208 | build_lookup_tables(); | |
209 | ||
62dfdd4d ILT |
210 | // Give an error if there are any unmatched names in the version |
211 | // script. | |
212 | void | |
213 | check_unmatched_names(const Symbol_table*) const; | |
214 | ||
494e05f4 ILT |
215 | // Print contents to the FILE. This is for debugging. |
216 | void | |
217 | print(FILE*) const; | |
218 | ||
09124467 | 219 | private: |
494e05f4 ILT |
220 | void |
221 | print_expression_list(FILE* f, const Version_expression_list*) const; | |
222 | ||
6affe781 ILT |
223 | bool |
224 | get_symbol_version_helper(const char* symbol, | |
225 | bool check_global, | |
226 | std::string* pversion) const; | |
227 | ||
98e090bd ILT |
228 | // Fast lookup information for a given language. |
229 | ||
230 | // We map from exact match strings to Version_tree's. Historically | |
231 | // version scripts sometimes have the same symbol multiple times, | |
232 | // which is ambiguous. We warn about that case by storing the | |
233 | // second Version_tree we see. | |
234 | struct Version_tree_match | |
235 | { | |
236 | Version_tree_match(const Version_tree* r, bool ig, | |
237 | const Version_expression* e) | |
238 | : real(r), is_global(ig), expression(e), ambiguous(NULL) | |
239 | { } | |
240 | ||
241 | // The Version_tree that we return. | |
242 | const Version_tree* real; | |
243 | // True if this is a global match for the REAL member, false if it | |
244 | // is a local match. | |
245 | bool is_global; | |
246 | // Point back to the Version_expression for which we created this | |
247 | // match. | |
248 | const Version_expression* expression; | |
249 | // If not NULL, another Version_tree that defines the symbol. | |
250 | const Version_tree* ambiguous; | |
251 | }; | |
252 | ||
253 | // Map from an exact match string to a Version_tree. | |
254 | ||
255 | typedef Unordered_map<std::string, Version_tree_match> Exact; | |
62dfdd4d | 256 | |
6affe781 ILT |
257 | // Fast lookup information for a glob pattern. |
258 | struct Glob | |
259 | { | |
260 | Glob() | |
98e090bd | 261 | : expression(NULL), version(NULL), is_global(false) |
6affe781 ILT |
262 | { } |
263 | ||
98e090bd ILT |
264 | Glob(const Version_expression* e, const Version_tree* v, bool ig) |
265 | : expression(e), version(v), is_global(ig) | |
6affe781 ILT |
266 | { } |
267 | ||
98e090bd ILT |
268 | // A pointer to the version expression holding the pattern to |
269 | // match and the language to use for demangling the symbol before | |
270 | // doing the match. | |
271 | const Version_expression* expression; | |
6affe781 ILT |
272 | // The Version_tree we use if this pattern matches. |
273 | const Version_tree* version; | |
98e090bd ILT |
274 | // True if this is a global symbol. |
275 | bool is_global; | |
6affe781 ILT |
276 | }; |
277 | ||
98e090bd | 278 | typedef std::vector<Glob> Globs; |
6affe781 | 279 | |
98e090bd ILT |
280 | bool |
281 | unquote(std::string*) const; | |
6affe781 | 282 | |
98e090bd ILT |
283 | void |
284 | add_exact_match(const std::string&, const Version_tree*, bool is_global, | |
285 | const Version_expression*, Exact*); | |
09124467 | 286 | |
6affe781 ILT |
287 | void |
288 | build_expression_list_lookup(const Version_expression_list*, | |
98e090bd ILT |
289 | const Version_tree*, bool); |
290 | ||
291 | const char* | |
292 | get_name_to_match(const char*, int, | |
293 | Lazy_demangler*, Lazy_demangler*) const; | |
6affe781 ILT |
294 | |
295 | // All the version dependencies we allocate. | |
296 | std::vector<Version_dependency_list*> dependency_lists_; | |
297 | // All the version expressions we allocate. | |
298 | std::vector<Version_expression_list*> expression_lists_; | |
299 | // The list of versions. | |
300 | std::vector<Version_tree*> version_trees_; | |
98e090bd ILT |
301 | // Exact matches for global symbols, by language. |
302 | Exact* exact_[LANGUAGE_COUNT]; | |
303 | // A vector of glob patterns mapping to Version_trees. | |
304 | Globs globs_; | |
305 | // The default version to use, if there is one. This is from a | |
306 | // pattern of "*". | |
307 | const Version_tree* default_version_; | |
308 | // True if the default version is global. | |
309 | bool default_is_global_; | |
6affe781 ILT |
310 | // Whether this has been finalized. |
311 | bool is_finalized_; | |
09124467 ILT |
312 | }; |
313 | ||
494e05f4 ILT |
314 | // This class manages assignments to symbols. These can appear in |
315 | // three different locations in scripts: outside of a SECTIONS clause, | |
316 | // within a SECTIONS clause, and within an output section definition | |
317 | // within a SECTIONS clause. This can also appear on the command line | |
318 | // via the --defsym command line option. | |
319 | ||
320 | class Symbol_assignment | |
321 | { | |
322 | public: | |
99fff23b ILT |
323 | Symbol_assignment(const char* name, size_t namelen, bool is_defsym, |
324 | Expression* val, bool provide, bool hidden) | |
325 | : name_(name, namelen), val_(val), is_defsym_(is_defsym), | |
326 | provide_(provide), hidden_(hidden), sym_(NULL) | |
494e05f4 ILT |
327 | { } |
328 | ||
329 | // Add the symbol to the symbol table. | |
330 | void | |
9b07f471 | 331 | add_to_table(Symbol_table*); |
494e05f4 ILT |
332 | |
333 | // Finalize the symbol value. | |
a445fddf ILT |
334 | void |
335 | finalize(Symbol_table*, const Layout*); | |
336 | ||
337 | // Finalize the symbol value when it can refer to the dot symbol. | |
338 | void | |
77e65537 ILT |
339 | finalize_with_dot(Symbol_table*, const Layout*, uint64_t dot_value, |
340 | Output_section* dot_section); | |
a445fddf ILT |
341 | |
342 | // Set the symbol value, but only if the value is absolute. This is | |
77e65537 | 343 | // used while processing a SECTIONS clause. We assume that dot is |
919ed24c | 344 | // an absolute value here. We do not check assertions. |
a445fddf ILT |
345 | void |
346 | set_if_absolute(Symbol_table*, const Layout*, bool is_dot_available, | |
77e65537 | 347 | uint64_t dot_value); |
494e05f4 | 348 | |
e597fa08 NC |
349 | const std::string& |
350 | name() const | |
351 | { return this->name_; } | |
352 | ||
494e05f4 ILT |
353 | // Print the assignment to the FILE. This is for debugging. |
354 | void | |
355 | print(FILE*) const; | |
356 | ||
357 | private: | |
a445fddf ILT |
358 | // Shared by finalize and finalize_with_dot. |
359 | void | |
360 | finalize_maybe_dot(Symbol_table*, const Layout*, bool is_dot_available, | |
77e65537 | 361 | uint64_t dot_value, Output_section* dot_section); |
a445fddf | 362 | |
494e05f4 ILT |
363 | // Sized version of finalize. |
364 | template<int size> | |
365 | void | |
a445fddf | 366 | sized_finalize(Symbol_table*, const Layout*, bool is_dot_available, |
77e65537 | 367 | uint64_t dot_value, Output_section*); |
494e05f4 ILT |
368 | |
369 | // Symbol name. | |
370 | std::string name_; | |
371 | // Expression to assign to symbol. | |
372 | Expression* val_; | |
99fff23b ILT |
373 | // True if this symbol is defined by a --defsym, false if it is |
374 | // defined in a linker script. | |
375 | bool is_defsym_; | |
494e05f4 ILT |
376 | // Whether the assignment should be provided (only set if there is |
377 | // an undefined reference to the symbol. | |
378 | bool provide_; | |
379 | // Whether the assignment should be hidden. | |
380 | bool hidden_; | |
381 | // The entry in the symbol table. | |
382 | Symbol* sym_; | |
383 | }; | |
384 | ||
385 | // This class manages assertions in linker scripts. These can appear | |
386 | // in all the places where a Symbol_assignment can appear. | |
387 | ||
388 | class Script_assertion | |
389 | { | |
390 | public: | |
2ea97941 | 391 | Script_assertion(Expression* check, const char* message, |
494e05f4 | 392 | size_t messagelen) |
2ea97941 | 393 | : check_(check), message_(message, messagelen) |
494e05f4 ILT |
394 | { } |
395 | ||
396 | // Check the assertion. | |
397 | void | |
398 | check(const Symbol_table*, const Layout*); | |
399 | ||
400 | // Print the assertion to the FILE. This is for debugging. | |
401 | void | |
402 | print(FILE*) const; | |
403 | ||
404 | private: | |
405 | // The expression to check. | |
406 | Expression* check_; | |
407 | // The message to issue if the expression fails. | |
408 | std::string message_; | |
409 | }; | |
410 | ||
e5756efb ILT |
411 | // We can read a linker script in two different contexts: when |
412 | // initially parsing the command line, and when we find an input file | |
413 | // which is actually a linker script. Also some of the data which can | |
414 | // be set by a linker script can also be set via command line options | |
415 | // like -e and --defsym. This means that we have a type of data which | |
416 | // can be set both during command line option parsing and while | |
417 | // reading input files. We store that data in an instance of this | |
418 | // object. We will keep pointers to that instance in both the | |
419 | // Command_line and Layout objects. | |
420 | ||
421 | class Script_options | |
422 | { | |
423 | public: | |
424 | Script_options(); | |
425 | ||
494e05f4 | 426 | // Add a symbol to be defined. |
e5756efb | 427 | void |
99fff23b ILT |
428 | add_symbol_assignment(const char* name, size_t length, bool is_defsym, |
429 | Expression* value, bool provide, bool hidden); | |
494e05f4 | 430 | |
e597fa08 NC |
431 | // Look for an assigned symbol. |
432 | bool | |
433 | is_pending_assignment(const char* name); | |
434 | ||
88a4108b ILT |
435 | // Add a reference to a symbol. |
436 | void | |
437 | add_symbol_reference(const char* name, size_t length); | |
438 | ||
494e05f4 ILT |
439 | // Add an assertion. |
440 | void | |
441 | add_assertion(Expression* check, const char* message, size_t messagelen); | |
e5756efb ILT |
442 | |
443 | // Define a symbol from the command line. | |
444 | bool | |
445 | define_symbol(const char* definition); | |
446 | ||
919ed24c ILT |
447 | // Create sections required by any linker scripts. |
448 | void | |
449 | create_script_sections(Layout*); | |
450 | ||
e5756efb ILT |
451 | // Add all symbol definitions to the symbol table. |
452 | void | |
9b07f471 | 453 | add_symbols_to_table(Symbol_table*); |
e5756efb | 454 | |
88a4108b ILT |
455 | // Used to iterate over symbols which are referenced in expressions |
456 | // but not defined. | |
457 | typedef Unordered_set<std::string>::const_iterator referenced_const_iterator; | |
458 | ||
459 | referenced_const_iterator | |
460 | referenced_begin() const | |
461 | { return this->symbol_references_.begin(); } | |
462 | ||
463 | referenced_const_iterator | |
464 | referenced_end() const | |
465 | { return this->symbol_references_.end(); } | |
466 | ||
467 | // Return whether a symbol is referenced but not defined. | |
468 | bool | |
469 | is_referenced(const std::string& name) const | |
470 | { | |
471 | return (this->symbol_references_.find(name) | |
472 | != this->symbol_references_.end()); | |
473 | } | |
474 | ||
475 | // Return whether there are any symbols which were referenced but | |
476 | // not defined. | |
477 | bool | |
478 | any_unreferenced() const | |
479 | { return !this->symbol_references_.empty(); } | |
480 | ||
a445fddf | 481 | // Finalize the symbol values. Also check assertions. |
e5756efb ILT |
482 | void |
483 | finalize_symbols(Symbol_table*, const Layout*); | |
484 | ||
09124467 ILT |
485 | // Version information parsed from a version script. Everything |
486 | // else has a pointer to this object. | |
487 | Version_script_info* | |
488 | version_script_info() | |
494e05f4 | 489 | { return &this->version_script_info_; } |
09124467 | 490 | |
a5dc0706 ILT |
491 | const Version_script_info* |
492 | version_script_info() const | |
493 | { return &this->version_script_info_; } | |
494 | ||
494e05f4 ILT |
495 | // A SECTIONS clause parsed from a linker script. Everything else |
496 | // has a pointer to this object. | |
497 | Script_sections* | |
498 | script_sections() | |
499 | { return &this->script_sections_; } | |
e5756efb | 500 | |
8f2eb564 ILT |
501 | const Script_sections* |
502 | script_sections() const | |
503 | { return &this->script_sections_; } | |
504 | ||
a445fddf ILT |
505 | // Whether we saw a SECTIONS clause. |
506 | bool | |
507 | saw_sections_clause() const | |
508 | { return this->script_sections_.saw_sections_clause(); } | |
509 | ||
1c4f3631 ILT |
510 | // Whether we saw a PHDRS clause. |
511 | bool | |
512 | saw_phdrs_clause() const | |
513 | { return this->script_sections_.saw_phdrs_clause(); } | |
514 | ||
a445fddf ILT |
515 | // Set section addresses using a SECTIONS clause. Return the |
516 | // segment which should hold the file header and segment headers; | |
517 | // this may return NULL, in which case the headers are not in a | |
518 | // loadable segment. | |
519 | Output_segment* | |
520 | set_section_addresses(Symbol_table*, Layout*); | |
521 | ||
494e05f4 | 522 | // Print the script to the FILE. This is for debugging. |
e5756efb | 523 | void |
494e05f4 ILT |
524 | print(FILE*) const; |
525 | ||
526 | private: | |
527 | // We keep a list of symbol assignments which occur outside of a | |
528 | // SECTIONS clause. | |
529 | typedef std::vector<Symbol_assignment*> Symbol_assignments; | |
530 | ||
531 | // We keep a list of all assertions whcih occur outside of a | |
532 | // SECTIONS clause. | |
533 | typedef std::vector<Script_assertion*> Assertions; | |
e5756efb ILT |
534 | |
535 | // The entry address. This will be empty if not set. | |
536 | std::string entry_; | |
537 | // Symbols to set. | |
538 | Symbol_assignments symbol_assignments_; | |
88a4108b ILT |
539 | // Symbols defined in an expression, for faster lookup. |
540 | Unordered_set<std::string> symbol_definitions_; | |
541 | // Symbols referenced in an expression. | |
542 | Unordered_set<std::string> symbol_references_; | |
494e05f4 ILT |
543 | // Assertions to check. |
544 | Assertions assertions_; | |
09124467 ILT |
545 | // Version information parsed from a version script. |
546 | Version_script_info version_script_info_; | |
494e05f4 ILT |
547 | // Information from any SECTIONS clauses. |
548 | Script_sections script_sections_; | |
e5756efb ILT |
549 | }; |
550 | ||
dbe717ef | 551 | // FILE was found as an argument on the command line, but was not |
da769d56 ILT |
552 | // recognized as an ELF file. Try to read it as a script. Return |
553 | // true if the file was handled. This has to handle /usr/lib/libc.so | |
554 | // on a GNU/Linux system. *USED_NEXT_BLOCKER is set to indicate | |
555 | // whether the function took over NEXT_BLOCKER. | |
dbe717ef ILT |
556 | |
557 | bool | |
15f8229b | 558 | read_input_script(Workqueue*, Symbol_table*, Layout*, Dirsearch*, int, |
f1ed28fb | 559 | Input_objects*, Mapfile*, Input_group*, |
da769d56 ILT |
560 | const Input_argument*, Input_file*, |
561 | Task_token* next_blocker, bool* used_next_blocker); | |
dbe717ef | 562 | |
3c2fafa5 ILT |
563 | // FILE was found as an argument to --script (-T). |
564 | // Read it as a script, and execute its contents immediately. | |
565 | ||
566 | bool | |
c82fbeee | 567 | read_commandline_script(const char* filename, Command_line* cmdline); |
3c2fafa5 | 568 | |
09124467 ILT |
569 | // FILE was found as an argument to --version-script. Read it as a |
570 | // version script, and store its contents in | |
571 | // cmdline->script_options()->version_script_info(). | |
572 | ||
573 | bool | |
574 | read_version_script(const char* filename, Command_line* cmdline); | |
575 | ||
c82fbeee CS |
576 | // FILENAME was found as an argument to --dynamic-list. Read it as a |
577 | // version script (actually, a versym_node from a version script), and | |
578 | // store its contents in DYNAMIC_LIST. | |
579 | ||
580 | bool | |
581 | read_dynamic_list(const char* filename, Command_line* cmdline, | |
582 | Script_options* dynamic_list); | |
583 | ||
dbe717ef ILT |
584 | } // End namespace gold. |
585 | ||
586 | #endif // !defined(GOLD_SCRIPT_H) |