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75f2446e ILT |
1 | // errors.cc -- handle errors for gold |
2 | ||
308ecdc7 | 3 | // Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
75f2446e 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 | ||
23 | #include "gold.h" | |
24 | ||
25 | #include <cstdarg> | |
26 | #include <cstdio> | |
27 | ||
28 | #include "gold-threads.h" | |
29 | #include "parameters.h" | |
30 | #include "object.h" | |
31 | #include "symtab.h" | |
32 | #include "errors.h" | |
33 | ||
34 | namespace gold | |
35 | { | |
36 | ||
37 | // Class Errors. | |
38 | ||
39 | const int Errors::max_undefined_error_report; | |
40 | ||
2ea97941 ILT |
41 | Errors::Errors(const char* program_name) |
42 | : program_name_(program_name), lock_(NULL), initialize_lock_(&this->lock_), | |
7f055c20 | 43 | error_count_(0), warning_count_(0), undefined_symbols_() |
75f2446e ILT |
44 | { |
45 | } | |
46 | ||
2dd3e587 ILT |
47 | // Initialize the lock_ field. If we have not yet processed the |
48 | // parameters, then we can't initialize, since we don't yet know | |
49 | // whether we are using threads. That is OK, since if we haven't | |
50 | // processed the parameters, we haven't created any threads, and we | |
51 | // don't need a lock. Return true if the lock is now initialized. | |
c7912668 | 52 | |
2dd3e587 | 53 | bool |
c7912668 ILT |
54 | Errors::initialize_lock() |
55 | { | |
7f055c20 | 56 | return this->initialize_lock_.initialize(); |
2dd3e587 ILT |
57 | } |
58 | ||
59 | // Increment a counter, holding the lock if available. | |
60 | ||
61 | void | |
62 | Errors::increment_counter(int *counter) | |
63 | { | |
64 | if (!this->initialize_lock()) | |
65 | { | |
66 | // The lock does not exist, which means that we don't need it. | |
67 | ++*counter; | |
68 | } | |
69 | else | |
70 | { | |
71 | Hold_lock h(*this->lock_); | |
72 | ++*counter; | |
73 | } | |
c7912668 ILT |
74 | } |
75 | ||
75f2446e ILT |
76 | // Report a fatal error. |
77 | ||
78 | void | |
79 | Errors::fatal(const char* format, va_list args) | |
80 | { | |
f073bbf7 | 81 | fprintf(stderr, _("%s: fatal error: "), this->program_name_); |
75f2446e ILT |
82 | vfprintf(stderr, format, args); |
83 | fputc('\n', stderr); | |
84 | gold_exit(false); | |
85 | } | |
86 | ||
87 | // Report an error. | |
88 | ||
89 | void | |
90 | Errors::error(const char* format, va_list args) | |
91 | { | |
f073bbf7 | 92 | fprintf(stderr, _("%s: error: "), this->program_name_); |
75f2446e ILT |
93 | vfprintf(stderr, format, args); |
94 | fputc('\n', stderr); | |
c7912668 | 95 | |
2dd3e587 | 96 | this->increment_counter(&this->error_count_); |
75f2446e ILT |
97 | } |
98 | ||
99 | // Report a warning. | |
100 | ||
101 | void | |
102 | Errors::warning(const char* format, va_list args) | |
103 | { | |
104 | fprintf(stderr, _("%s: warning: "), this->program_name_); | |
105 | vfprintf(stderr, format, args); | |
106 | fputc('\n', stderr); | |
c7912668 | 107 | |
2dd3e587 | 108 | this->increment_counter(&this->warning_count_); |
75f2446e ILT |
109 | } |
110 | ||
c5818ff1 CC |
111 | // Print an informational message. |
112 | ||
113 | void | |
114 | Errors::info(const char* format, va_list args) | |
115 | { | |
116 | vfprintf(stderr, format, args); | |
117 | fputc('\n', stderr); | |
118 | } | |
119 | ||
75f2446e ILT |
120 | // Report an error at a reloc location. |
121 | ||
122 | template<int size, bool big_endian> | |
123 | void | |
124 | Errors::error_at_location(const Relocate_info<size, big_endian>* relinfo, | |
125 | size_t relnum, off_t reloffset, | |
126 | const char* format, va_list args) | |
127 | { | |
308ecdc7 | 128 | fprintf(stderr, _("%s: error: "), |
75f2446e ILT |
129 | relinfo->location(relnum, reloffset).c_str()); |
130 | vfprintf(stderr, format, args); | |
131 | fputc('\n', stderr); | |
c7912668 | 132 | |
2dd3e587 | 133 | this->increment_counter(&this->error_count_); |
75f2446e ILT |
134 | } |
135 | ||
136 | // Report a warning at a reloc location. | |
137 | ||
138 | template<int size, bool big_endian> | |
139 | void | |
140 | Errors::warning_at_location(const Relocate_info<size, big_endian>* relinfo, | |
141 | size_t relnum, off_t reloffset, | |
142 | const char* format, va_list args) | |
143 | { | |
308ecdc7 | 144 | fprintf(stderr, _("%s: warning: "), |
75f2446e ILT |
145 | relinfo->location(relnum, reloffset).c_str()); |
146 | vfprintf(stderr, format, args); | |
147 | fputc('\n', stderr); | |
c7912668 | 148 | |
2dd3e587 | 149 | this->increment_counter(&this->warning_count_); |
75f2446e ILT |
150 | } |
151 | ||
f073bbf7 | 152 | // Issue an undefined symbol error with a caller-supplied location string. |
75f2446e | 153 | |
75f2446e | 154 | void |
f073bbf7 | 155 | Errors::undefined_symbol(const Symbol* sym, const std::string& location) |
75f2446e | 156 | { |
2dd3e587 ILT |
157 | bool initialized = this->initialize_lock(); |
158 | gold_assert(initialized); | |
dc3f80fe ILT |
159 | |
160 | const char* zmsg; | |
75f2446e | 161 | { |
c7912668 | 162 | Hold_lock h(*this->lock_); |
75f2446e ILT |
163 | if (++this->undefined_symbols_[sym] >= max_undefined_error_report) |
164 | return; | |
dc3f80fe ILT |
165 | if (parameters->options().warn_unresolved_symbols()) |
166 | { | |
167 | ++this->warning_count_; | |
168 | zmsg = _("warning"); | |
169 | } | |
170 | else | |
171 | { | |
172 | ++this->error_count_; | |
173 | zmsg = _("error"); | |
174 | } | |
75f2446e | 175 | } |
dc3f80fe | 176 | |
789aa6de ILT |
177 | const char* const version = sym->version(); |
178 | if (version == NULL) | |
308ecdc7 ILT |
179 | fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"), |
180 | location.c_str(), zmsg, sym->demangled_name().c_str()); | |
789aa6de | 181 | else |
f073bbf7 | 182 | fprintf(stderr, |
308ecdc7 ILT |
183 | _("%s: %s: undefined reference to '%s', version '%s'\n"), |
184 | location.c_str(), zmsg, sym->demangled_name().c_str(), version); | |
75f2446e ILT |
185 | } |
186 | ||
c7912668 ILT |
187 | // Issue a debugging message. |
188 | ||
189 | void | |
190 | Errors::debug(const char* format, ...) | |
191 | { | |
192 | fprintf(stderr, _("%s: "), this->program_name_); | |
193 | ||
194 | va_list args; | |
195 | va_start(args, format); | |
196 | vfprintf(stderr, format, args); | |
197 | va_end(args); | |
198 | ||
199 | fputc('\n', stderr); | |
200 | } | |
75f2446e ILT |
201 | |
202 | // The functions which the rest of the code actually calls. | |
203 | ||
204 | // Report a fatal error. | |
205 | ||
206 | void | |
207 | gold_fatal(const char* format, ...) | |
208 | { | |
209 | va_list args; | |
210 | va_start(args, format); | |
211 | parameters->errors()->fatal(format, args); | |
212 | va_end(args); | |
213 | } | |
214 | ||
215 | // Report an error. | |
216 | ||
217 | void | |
218 | gold_error(const char* format, ...) | |
219 | { | |
220 | va_list args; | |
221 | va_start(args, format); | |
222 | parameters->errors()->error(format, args); | |
223 | va_end(args); | |
224 | } | |
225 | ||
226 | // Report a warning. | |
227 | ||
228 | void | |
229 | gold_warning(const char* format, ...) | |
230 | { | |
231 | va_list args; | |
232 | va_start(args, format); | |
233 | parameters->errors()->warning(format, args); | |
234 | va_end(args); | |
235 | } | |
236 | ||
c5818ff1 CC |
237 | // Print an informational message. |
238 | ||
239 | void | |
240 | gold_info(const char* format, ...) | |
241 | { | |
242 | va_list args; | |
243 | va_start(args, format); | |
244 | parameters->errors()->info(format, args); | |
245 | va_end(args); | |
246 | } | |
247 | ||
75f2446e ILT |
248 | // Report an error at a location. |
249 | ||
250 | template<int size, bool big_endian> | |
251 | void | |
252 | gold_error_at_location(const Relocate_info<size, big_endian>* relinfo, | |
253 | size_t relnum, off_t reloffset, | |
254 | const char* format, ...) | |
255 | { | |
256 | va_list args; | |
257 | va_start(args, format); | |
258 | parameters->errors()->error_at_location(relinfo, relnum, reloffset, | |
259 | format, args); | |
260 | va_end(args); | |
261 | } | |
262 | ||
263 | // Report a warning at a location. | |
264 | ||
265 | template<int size, bool big_endian> | |
266 | void | |
267 | gold_warning_at_location(const Relocate_info<size, big_endian>* relinfo, | |
268 | size_t relnum, off_t reloffset, | |
269 | const char* format, ...) | |
270 | { | |
271 | va_list args; | |
272 | va_start(args, format); | |
273 | parameters->errors()->warning_at_location(relinfo, relnum, reloffset, | |
274 | format, args); | |
275 | va_end(args); | |
276 | } | |
277 | ||
278 | // Report an undefined symbol. | |
279 | ||
f073bbf7 CD |
280 | void |
281 | gold_undefined_symbol(const Symbol* sym) | |
282 | { | |
283 | parameters->errors()->undefined_symbol(sym, sym->object()->name().c_str()); | |
284 | } | |
285 | ||
286 | // Report an undefined symbol at a reloc location | |
287 | ||
75f2446e ILT |
288 | template<int size, bool big_endian> |
289 | void | |
f073bbf7 | 290 | gold_undefined_symbol_at_location(const Symbol* sym, |
75f2446e ILT |
291 | const Relocate_info<size, big_endian>* relinfo, |
292 | size_t relnum, off_t reloffset) | |
293 | { | |
f073bbf7 CD |
294 | parameters->errors()->undefined_symbol(sym, |
295 | relinfo->location(relnum, reloffset)); | |
75f2446e ILT |
296 | } |
297 | ||
298 | #ifdef HAVE_TARGET_32_LITTLE | |
299 | template | |
300 | void | |
301 | gold_error_at_location<32, false>(const Relocate_info<32, false>* relinfo, | |
302 | size_t relnum, off_t reloffset, | |
303 | const char* format, ...); | |
304 | #endif | |
305 | ||
306 | #ifdef HAVE_TARGET_32_BIG | |
307 | template | |
308 | void | |
309 | gold_error_at_location<32, true>(const Relocate_info<32, true>* relinfo, | |
310 | size_t relnum, off_t reloffset, | |
311 | const char* format, ...); | |
312 | #endif | |
313 | ||
314 | #ifdef HAVE_TARGET_64_LITTLE | |
315 | template | |
316 | void | |
317 | gold_error_at_location<64, false>(const Relocate_info<64, false>* relinfo, | |
318 | size_t relnum, off_t reloffset, | |
319 | const char* format, ...); | |
320 | #endif | |
321 | ||
322 | #ifdef HAVE_TARGET_64_BIG | |
323 | template | |
324 | void | |
325 | gold_error_at_location<64, true>(const Relocate_info<64, true>* relinfo, | |
326 | size_t relnum, off_t reloffset, | |
327 | const char* format, ...); | |
328 | #endif | |
329 | ||
330 | #ifdef HAVE_TARGET_32_LITTLE | |
331 | template | |
332 | void | |
333 | gold_warning_at_location<32, false>(const Relocate_info<32, false>* relinfo, | |
334 | size_t relnum, off_t reloffset, | |
335 | const char* format, ...); | |
336 | #endif | |
337 | ||
338 | #ifdef HAVE_TARGET_32_BIG | |
339 | template | |
340 | void | |
341 | gold_warning_at_location<32, true>(const Relocate_info<32, true>* relinfo, | |
342 | size_t relnum, off_t reloffset, | |
343 | const char* format, ...); | |
344 | #endif | |
345 | ||
346 | #ifdef HAVE_TARGET_64_LITTLE | |
347 | template | |
348 | void | |
349 | gold_warning_at_location<64, false>(const Relocate_info<64, false>* relinfo, | |
350 | size_t relnum, off_t reloffset, | |
351 | const char* format, ...); | |
352 | #endif | |
353 | ||
354 | #ifdef HAVE_TARGET_64_BIG | |
355 | template | |
356 | void | |
357 | gold_warning_at_location<64, true>(const Relocate_info<64, true>* relinfo, | |
358 | size_t relnum, off_t reloffset, | |
359 | const char* format, ...); | |
360 | #endif | |
361 | ||
362 | #ifdef HAVE_TARGET_32_LITTLE | |
363 | template | |
364 | void | |
f073bbf7 CD |
365 | gold_undefined_symbol_at_location<32, false>( |
366 | const Symbol* sym, | |
367 | const Relocate_info<32, false>* relinfo, | |
368 | size_t relnum, off_t reloffset); | |
75f2446e ILT |
369 | #endif |
370 | ||
371 | #ifdef HAVE_TARGET_32_BIG | |
372 | template | |
373 | void | |
f073bbf7 CD |
374 | gold_undefined_symbol_at_location<32, true>( |
375 | const Symbol* sym, | |
376 | const Relocate_info<32, true>* relinfo, | |
377 | size_t relnum, off_t reloffset); | |
75f2446e ILT |
378 | #endif |
379 | ||
380 | #ifdef HAVE_TARGET_64_LITTLE | |
381 | template | |
382 | void | |
f073bbf7 CD |
383 | gold_undefined_symbol_at_location<64, false>( |
384 | const Symbol* sym, | |
385 | const Relocate_info<64, false>* relinfo, | |
386 | size_t relnum, off_t reloffset); | |
75f2446e ILT |
387 | #endif |
388 | ||
389 | #ifdef HAVE_TARGET_64_BIG | |
390 | template | |
391 | void | |
f073bbf7 CD |
392 | gold_undefined_symbol_at_location<64, true>( |
393 | const Symbol* sym, | |
394 | const Relocate_info<64, true>* relinfo, | |
395 | size_t relnum, off_t reloffset); | |
75f2446e ILT |
396 | #endif |
397 | ||
398 | } // End namespace gold. |