1 // errors.cc -- handle errors for gold
3 // Copyright (C) 2006-2018 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@google.com>.
6 // This file is part of gold.
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.
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.
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.
28 #include "gold-threads.h"
29 #include "parameters.h"
39 const int Errors::max_undefined_error_report;
41 Errors::Errors(const char* program_name)
42 : program_name_(program_name), lock_(NULL), initialize_lock_(&this->lock_),
43 error_count_(0), warning_count_(0), undefined_symbols_()
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.
54 Errors::initialize_lock()
56 return this->initialize_lock_.initialize();
59 // Increment a counter, holding the lock if available.
62 Errors::increment_counter(int *counter)
64 if (!this->initialize_lock())
66 // The lock does not exist, which means that we don't need it.
71 Hold_lock h(*this->lock_);
76 // Report a fatal error.
79 Errors::fatal(const char* format, va_list args)
81 fprintf(stderr, _("%s: fatal error: "), this->program_name_);
82 vfprintf(stderr, format, args);
87 // Report a fallback error.
90 Errors::fallback(const char* format, va_list args)
92 fprintf(stderr, _("%s: fatal error: "), this->program_name_);
93 vfprintf(stderr, format, args);
95 gold_exit(GOLD_FALLBACK);
101 Errors::error(const char* format, va_list args)
103 fprintf(stderr, _("%s: error: "), this->program_name_);
104 vfprintf(stderr, format, args);
107 this->increment_counter(&this->error_count_);
113 Errors::warning(const char* format, va_list args)
115 fprintf(stderr, _("%s: warning: "), this->program_name_);
116 vfprintf(stderr, format, args);
119 this->increment_counter(&this->warning_count_);
122 // Print an informational message.
125 Errors::info(const char* format, va_list args)
127 vfprintf(stderr, format, args);
131 // Report an error at a reloc location.
133 template<int size, bool big_endian>
135 Errors::error_at_location(const Relocate_info<size, big_endian>* relinfo,
136 size_t relnum, off_t reloffset,
137 const char* format, va_list args)
139 fprintf(stderr, _("%s: error: "),
140 relinfo->location(relnum, reloffset).c_str());
141 vfprintf(stderr, format, args);
144 this->increment_counter(&this->error_count_);
147 // Report a warning at a reloc location.
149 template<int size, bool big_endian>
151 Errors::warning_at_location(const Relocate_info<size, big_endian>* relinfo,
152 size_t relnum, off_t reloffset,
153 const char* format, va_list args)
155 fprintf(stderr, _("%s: warning: "),
156 relinfo->location(relnum, reloffset).c_str());
157 vfprintf(stderr, format, args);
160 this->increment_counter(&this->warning_count_);
163 // Issue an undefined symbol error with a caller-supplied location string.
166 Errors::undefined_symbol(const Symbol* sym, const std::string& location)
168 bool initialized = this->initialize_lock();
169 gold_assert(initialized);
173 Hold_lock h(*this->lock_);
174 if (++this->undefined_symbols_[sym] >= max_undefined_error_report)
176 if (parameters->options().warn_unresolved_symbols())
178 ++this->warning_count_;
183 ++this->error_count_;
188 const char* const version = sym->version();
190 fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"),
191 location.c_str(), zmsg, sym->demangled_name().c_str());
194 _("%s: %s: undefined reference to '%s', version '%s'\n"),
195 location.c_str(), zmsg, sym->demangled_name().c_str(), version);
197 if (sym->is_cxx_vtable())
198 gold_info(_("%s: the vtable symbol may be undefined because "
199 "the class is missing its key function"),
201 if (sym->is_placeholder())
202 gold_info(_("%s: the symbol should have been defined by a plugin"),
206 // Issue a debugging message.
209 Errors::debug(const char* format, ...)
211 fprintf(stderr, _("%s: "), this->program_name_);
214 va_start(args, format);
215 vfprintf(stderr, format, args);
221 // The functions which the rest of the code actually calls.
223 // Report a fatal error.
226 gold_fatal(const char* format, ...)
229 va_start(args, format);
230 parameters->errors()->fatal(format, args);
234 // Report a fallback error.
237 gold_fallback(const char* format, ...)
240 va_start(args, format);
241 parameters->errors()->fallback(format, args);
248 gold_error(const char* format, ...)
251 va_start(args, format);
252 parameters->errors()->error(format, args);
259 gold_warning(const char* format, ...)
262 va_start(args, format);
263 parameters->errors()->warning(format, args);
267 // Print an informational message.
270 gold_info(const char* format, ...)
273 va_start(args, format);
274 parameters->errors()->info(format, args);
278 // Report an error at a location.
280 template<int size, bool big_endian>
282 gold_error_at_location(const Relocate_info<size, big_endian>* relinfo,
283 size_t relnum, off_t reloffset,
284 const char* format, ...)
287 va_start(args, format);
288 parameters->errors()->error_at_location(relinfo, relnum, reloffset,
293 // Report a warning at a location.
295 template<int size, bool big_endian>
297 gold_warning_at_location(const Relocate_info<size, big_endian>* relinfo,
298 size_t relnum, off_t reloffset,
299 const char* format, ...)
302 va_start(args, format);
303 parameters->errors()->warning_at_location(relinfo, relnum, reloffset,
308 // Report an undefined symbol.
311 gold_undefined_symbol(const Symbol* sym)
313 parameters->errors()->undefined_symbol(sym, sym->object()->name().c_str());
316 // Report an undefined symbol at a reloc location
318 template<int size, bool big_endian>
320 gold_undefined_symbol_at_location(const Symbol* sym,
321 const Relocate_info<size, big_endian>* relinfo,
322 size_t relnum, off_t reloffset)
324 parameters->errors()->undefined_symbol(sym,
325 relinfo->location(relnum, reloffset));
328 #ifdef HAVE_TARGET_32_LITTLE
331 gold_error_at_location<32, false>(const Relocate_info<32, false>* relinfo,
332 size_t relnum, off_t reloffset,
333 const char* format, ...);
336 #ifdef HAVE_TARGET_32_BIG
339 gold_error_at_location<32, true>(const Relocate_info<32, true>* relinfo,
340 size_t relnum, off_t reloffset,
341 const char* format, ...);
344 #ifdef HAVE_TARGET_64_LITTLE
347 gold_error_at_location<64, false>(const Relocate_info<64, false>* relinfo,
348 size_t relnum, off_t reloffset,
349 const char* format, ...);
352 #ifdef HAVE_TARGET_64_BIG
355 gold_error_at_location<64, true>(const Relocate_info<64, true>* relinfo,
356 size_t relnum, off_t reloffset,
357 const char* format, ...);
360 #ifdef HAVE_TARGET_32_LITTLE
363 gold_warning_at_location<32, false>(const Relocate_info<32, false>* relinfo,
364 size_t relnum, off_t reloffset,
365 const char* format, ...);
368 #ifdef HAVE_TARGET_32_BIG
371 gold_warning_at_location<32, true>(const Relocate_info<32, true>* relinfo,
372 size_t relnum, off_t reloffset,
373 const char* format, ...);
376 #ifdef HAVE_TARGET_64_LITTLE
379 gold_warning_at_location<64, false>(const Relocate_info<64, false>* relinfo,
380 size_t relnum, off_t reloffset,
381 const char* format, ...);
384 #ifdef HAVE_TARGET_64_BIG
387 gold_warning_at_location<64, true>(const Relocate_info<64, true>* relinfo,
388 size_t relnum, off_t reloffset,
389 const char* format, ...);
392 #ifdef HAVE_TARGET_32_LITTLE
395 gold_undefined_symbol_at_location<32, false>(
397 const Relocate_info<32, false>* relinfo,
398 size_t relnum, off_t reloffset);
401 #ifdef HAVE_TARGET_32_BIG
404 gold_undefined_symbol_at_location<32, true>(
406 const Relocate_info<32, true>* relinfo,
407 size_t relnum, off_t reloffset);
410 #ifdef HAVE_TARGET_64_LITTLE
413 gold_undefined_symbol_at_location<64, false>(
415 const Relocate_info<64, false>* relinfo,
416 size_t relnum, off_t reloffset);
419 #ifdef HAVE_TARGET_64_BIG
422 gold_undefined_symbol_at_location<64, true>(
424 const Relocate_info<64, true>* relinfo,
425 size_t relnum, off_t reloffset);
428 } // End namespace gold.