[deliverable/binutils-gdb.git] / gold / errors.cc

// errors.cc -- handle errors for gold

// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.

// This file is part of gold.

// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.

#include "gold.h"

#include <cstdarg>
#include <cstdio>

#include "gold-threads.h"
#include "parameters.h"
#include "object.h"
#include "symtab.h"
#include "errors.h"

namespace gold
{

// Class Errors.

const int Errors::max_undefined_error_report;

Errors::Errors(const char* program_name)
  : program_name_(program_name), lock_(NULL), error_count_(0),
    warning_count_(0), undefined_symbols_()
{
}

// Initialize the lock_ field.  If we have not yet processed the
// parameters, then we can't initialize, since we don't yet know
// whether we are using threads.  That is OK, since if we haven't
// processed the parameters, we haven't created any threads, and we
// don't need a lock.  Return true if the lock is now initialized.

bool
Errors::initialize_lock()
{
  if (this->lock_ == NULL && parameters->options_valid())
    this->lock_ = new Lock;
  return this->lock_ != NULL;
}

// Increment a counter, holding the lock if available.

void
Errors::increment_counter(int *counter)
{
  if (!this->initialize_lock())
    {
      // The lock does not exist, which means that we don't need it.
      ++*counter;
    }
  else
    {
      Hold_lock h(*this->lock_);
      ++*counter;
    }
}

// Report a fatal error.

void
Errors::fatal(const char* format, va_list args)
{
  fprintf(stderr, "%s: ", this->program_name_);
  vfprintf(stderr, format, args);
  fputc('\n', stderr);
  gold_exit(false);
}

// Report an error.

void
Errors::error(const char* format, va_list args)
{
  fprintf(stderr, "%s: ", this->program_name_);
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->error_count_);
}

// Report a warning.

void
Errors::warning(const char* format, va_list args)
{
  fprintf(stderr, _("%s: warning: "), this->program_name_);
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->warning_count_);
}

// Report an error at a reloc location.

template<int size, bool big_endian>
void
Errors::error_at_location(const Relocate_info<size, big_endian>* relinfo,
			  size_t relnum, off_t reloffset,
			  const char* format, va_list args)
{
  fprintf(stderr, "%s: %s: ", this->program_name_,
	  relinfo->location(relnum, reloffset).c_str());
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->error_count_);
}

// Report a warning at a reloc location.

template<int size, bool big_endian>
void
Errors::warning_at_location(const Relocate_info<size, big_endian>* relinfo,
			    size_t relnum, off_t reloffset,
			    const char* format, va_list args)
{
  fprintf(stderr, _("%s: %s: warning: "), this->program_name_,
	  relinfo->location(relnum, reloffset).c_str());
  vfprintf(stderr, format, args);
  fputc('\n', stderr);

  this->increment_counter(&this->warning_count_);
}

// Issue an undefined symbol error.

template<int size, bool big_endian>
void
Errors::undefined_symbol(const Symbol* sym,
			 const Relocate_info<size, big_endian>* relinfo,
			 size_t relnum, off_t reloffset)
{
  bool initialized = this->initialize_lock();
  gold_assert(initialized);
  {
    Hold_lock h(*this->lock_);
    if (++this->undefined_symbols_[sym] >= max_undefined_error_report)
      return;
    ++this->error_count_;
  }
  fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"),
	  this->program_name_, relinfo->location(relnum, reloffset).c_str(),
	  sym->demangled_name().c_str());
}

// Issue a debugging message.

void
Errors::debug(const char* format, ...)
{
  fprintf(stderr, _("%s: "), this->program_name_);

  va_list args;
  va_start(args, format);
  vfprintf(stderr, format, args);
  va_end(args);

  fputc('\n', stderr);
}

// The functions which the rest of the code actually calls.

// Report a fatal error.

void
gold_fatal(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->fatal(format, args);
  va_end(args);
}

// Report an error.

void
gold_error(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->error(format, args);
  va_end(args);
}

// Report a warning.

void
gold_warning(const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->warning(format, args);
  va_end(args);
}

// Report an error at a location.

template<int size, bool big_endian>
void
gold_error_at_location(const Relocate_info<size, big_endian>* relinfo,
		       size_t relnum, off_t reloffset,
		       const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->error_at_location(relinfo, relnum, reloffset,
					  format, args);
  va_end(args);
}

// Report a warning at a location.

template<int size, bool big_endian>
void
gold_warning_at_location(const Relocate_info<size, big_endian>* relinfo,
			 size_t relnum, off_t reloffset,
			 const char* format, ...)
{
  va_list args;
  va_start(args, format);
  parameters->errors()->warning_at_location(relinfo, relnum, reloffset,
					    format, args);
  va_end(args);
}

// Report an undefined symbol.

template<int size, bool big_endian>
void
gold_undefined_symbol(const Symbol* sym,
		      const Relocate_info<size, big_endian>* relinfo,
		      size_t relnum, off_t reloffset)
{
  parameters->errors()->undefined_symbol(sym, relinfo, relnum, reloffset);
}

#ifdef HAVE_TARGET_32_LITTLE
template
void
gold_error_at_location<32, false>(const Relocate_info<32, false>* relinfo,
				  size_t relnum, off_t reloffset,
				  const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_BIG
template
void
gold_error_at_location<32, true>(const Relocate_info<32, true>* relinfo,
				 size_t relnum, off_t reloffset,
				 const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_LITTLE
template
void
gold_error_at_location<64, false>(const Relocate_info<64, false>* relinfo,
				  size_t relnum, off_t reloffset,
				  const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_BIG
template
void
gold_error_at_location<64, true>(const Relocate_info<64, true>* relinfo,
				 size_t relnum, off_t reloffset,
				 const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_LITTLE
template
void
gold_warning_at_location<32, false>(const Relocate_info<32, false>* relinfo,
				    size_t relnum, off_t reloffset,
				    const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_BIG
template
void
gold_warning_at_location<32, true>(const Relocate_info<32, true>* relinfo,
				   size_t relnum, off_t reloffset,
				   const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_LITTLE
template
void
gold_warning_at_location<64, false>(const Relocate_info<64, false>* relinfo,
				    size_t relnum, off_t reloffset,
				    const char* format, ...);
#endif

#ifdef HAVE_TARGET_64_BIG
template
void
gold_warning_at_location<64, true>(const Relocate_info<64, true>* relinfo,
				   size_t relnum, off_t reloffset,
				   const char* format, ...);
#endif

#ifdef HAVE_TARGET_32_LITTLE
template
void
gold_undefined_symbol<32, false>(const Symbol* sym,
				 const Relocate_info<32, false>* relinfo,
				 size_t relnum, off_t reloffset);
#endif

#ifdef HAVE_TARGET_32_BIG
template
void
gold_undefined_symbol<32, true>(const Symbol* sym,
				const Relocate_info<32, true>* relinfo,
				size_t relnum, off_t reloffset);
#endif

#ifdef HAVE_TARGET_64_LITTLE
template
void
gold_undefined_symbol<64, false>(const Symbol* sym,
				 const Relocate_info<64, false>* relinfo,
				 size_t relnum, off_t reloffset);
#endif

#ifdef HAVE_TARGET_64_BIG
template
void
gold_undefined_symbol<64, true>(const Symbol* sym,
				const Relocate_info<64, true>* relinfo,
				size_t relnum, off_t reloffset);
#endif

} // End namespace gold.
Commit	Line	Data
75f2446e ILT	1	// errors.cc -- handle errors for gold
75f2446e ILT	2
ebdbb458	3	// Copyright 2006, 2007, 2008 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
	41	Errors::Errors(const char* program_name)
c7912668 ILT	42	: program_name_(program_name), lock_(NULL), error_count_(0),
c7912668 ILT	43	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()
c7912668 ILT	55	{
2dd3e587	56	if (this->lock_ == NULL && parameters->options_valid())
c7912668	57	this->lock_ = new Lock;
2dd3e587 ILT	58	return this->lock_ != NULL;
	59	}
	60
	61	// Increment a counter, holding the lock if available.
	62
	63	void
	64	Errors::increment_counter(int *counter)
	65	{
	66	if (!this->initialize_lock())
	67	{
	68	// The lock does not exist, which means that we don't need it.
	69	++*counter;
	70	}
	71	else
	72	{
	73	Hold_lock h(*this->lock_);
	74	++*counter;
	75	}
c7912668 ILT	76	}
c7912668 ILT	77
75f2446e ILT	78	// Report a fatal error.
	79
	80	void
	81	Errors::fatal(const char* format, va_list args)
	82	{
	83	fprintf(stderr, "%s: ", this->program_name_);
	84	vfprintf(stderr, format, args);
	85	fputc('\n', stderr);
	86	gold_exit(false);
	87	}
	88
	89	// Report an error.
	90
	91	void
	92	Errors::error(const char* format, va_list args)
	93	{
	94	fprintf(stderr, "%s: ", this->program_name_);
	95	vfprintf(stderr, format, args);
	96	fputc('\n', stderr);
c7912668	97
2dd3e587	98	this->increment_counter(&this->error_count_);
75f2446e ILT	99	}
	100
	101	// Report a warning.
	102
	103	void
	104	Errors::warning(const char* format, va_list args)
	105	{
	106	fprintf(stderr, _("%s: warning: "), this->program_name_);
	107	vfprintf(stderr, format, args);
	108	fputc('\n', stderr);
c7912668	109
2dd3e587	110	this->increment_counter(&this->warning_count_);
75f2446e ILT	111	}
	112
	113	// Report an error at a reloc location.
	114
	115	template<int size, bool big_endian>
	116	void
	117	Errors::error_at_location(const Relocate_info<size, big_endian>* relinfo,
	118	size_t relnum, off_t reloffset,
	119	const char* format, va_list args)
	120	{
	121	fprintf(stderr, "%s: %s: ", this->program_name_,
	122	relinfo->location(relnum, reloffset).c_str());
	123	vfprintf(stderr, format, args);
	124	fputc('\n', stderr);
c7912668	125
2dd3e587	126	this->increment_counter(&this->error_count_);
75f2446e ILT	127	}
	128
	129	// Report a warning at a reloc location.
	130
	131	template<int size, bool big_endian>
	132	void
	133	Errors::warning_at_location(const Relocate_info<size, big_endian>* relinfo,
	134	size_t relnum, off_t reloffset,
	135	const char* format, va_list args)
	136	{
	137	fprintf(stderr, _("%s: %s: warning: "), this->program_name_,
	138	relinfo->location(relnum, reloffset).c_str());
	139	vfprintf(stderr, format, args);
	140	fputc('\n', stderr);
c7912668	141
2dd3e587	142	this->increment_counter(&this->warning_count_);
75f2446e ILT	143	}
	144
	145	// Issue an undefined symbol error.
	146
	147	template<int size, bool big_endian>
	148	void
	149	Errors::undefined_symbol(const Symbol* sym,
	150	const Relocate_info<size, big_endian>* relinfo,
	151	size_t relnum, off_t reloffset)
	152	{
2dd3e587 ILT	153	bool initialized = this->initialize_lock();
2dd3e587 ILT	154	gold_assert(initialized);
75f2446e	155	{
c7912668	156	Hold_lock h(*this->lock_);
75f2446e ILT	157	if (++this->undefined_symbols_[sym] >= max_undefined_error_report)
	158	return;
	159	++this->error_count_;
	160	}
	161	fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"),
	162	this->program_name_, relinfo->location(relnum, reloffset).c_str(),
a2b1aa12	163	sym->demangled_name().c_str());
75f2446e ILT	164	}
75f2446e ILT	165
c7912668 ILT	166	// Issue a debugging message.
	167
	168	void
	169	Errors::debug(const char* format, ...)
	170	{
	171	fprintf(stderr, _("%s: "), this->program_name_);
	172
	173	va_list args;
	174	va_start(args, format);
	175	vfprintf(stderr, format, args);
	176	va_end(args);
	177
	178	fputc('\n', stderr);
	179	}
75f2446e ILT	180
	181	// The functions which the rest of the code actually calls.
	182
	183	// Report a fatal error.
	184
	185	void
	186	gold_fatal(const char* format, ...)
	187	{
	188	va_list args;
	189	va_start(args, format);
	190	parameters->errors()->fatal(format, args);
	191	va_end(args);
	192	}
	193
	194	// Report an error.
	195
	196	void
	197	gold_error(const char* format, ...)
	198	{
	199	va_list args;
	200	va_start(args, format);
	201	parameters->errors()->error(format, args);
	202	va_end(args);
	203	}
	204
	205	// Report a warning.
	206
	207	void
	208	gold_warning(const char* format, ...)
	209	{
	210	va_list args;
	211	va_start(args, format);
	212	parameters->errors()->warning(format, args);
	213	va_end(args);
	214	}
	215
	216	// Report an error at a location.
	217
	218	template<int size, bool big_endian>
	219	void
	220	gold_error_at_location(const Relocate_info<size, big_endian>* relinfo,
	221	size_t relnum, off_t reloffset,
	222	const char* format, ...)
	223	{
	224	va_list args;
	225	va_start(args, format);
	226	parameters->errors()->error_at_location(relinfo, relnum, reloffset,
	227	format, args);
	228	va_end(args);
	229	}
	230
	231	// Report a warning at a location.
	232
	233	template<int size, bool big_endian>
	234	void
	235	gold_warning_at_location(const Relocate_info<size, big_endian>* relinfo,
	236	size_t relnum, off_t reloffset,
	237	const char* format, ...)
	238	{
	239	va_list args;
	240	va_start(args, format);
	241	parameters->errors()->warning_at_location(relinfo, relnum, reloffset,
	242	format, args);
	243	va_end(args);
244	}
245
246	// Report an undefined symbol.
247
248	template<int size, bool big_endian>
249	void
250	gold_undefined_symbol(const Symbol* sym,
251	const Relocate_info<size, big_endian>* relinfo,
252	size_t relnum, off_t reloffset)
253	{
254	parameters->errors()->undefined_symbol(sym, relinfo, relnum, reloffset);
255	}
256
257	#ifdef HAVE_TARGET_32_LITTLE
258	template
259	void
260	gold_error_at_location<32, false>(const Relocate_info<32, false>* relinfo,
261	size_t relnum, off_t reloffset,
262	const char* format, ...);
263	#endif
264
265	#ifdef HAVE_TARGET_32_BIG
266	template
267	void
268	gold_error_at_location<32, true>(const Relocate_info<32, true>* relinfo,
269	size_t relnum, off_t reloffset,
270	const char* format, ...);
271	#endif
272
273	#ifdef HAVE_TARGET_64_LITTLE
274	template
275	void
276	gold_error_at_location<64, false>(const Relocate_info<64, false>* relinfo,
277	size_t relnum, off_t reloffset,
278	const char* format, ...);
279	#endif
280
281	#ifdef HAVE_TARGET_64_BIG
282	template
283	void
284	gold_error_at_location<64, true>(const Relocate_info<64, true>* relinfo,
285	size_t relnum, off_t reloffset,
286	const char* format, ...);
287	#endif
288
289	#ifdef HAVE_TARGET_32_LITTLE
290	template
291	void
292	gold_warning_at_location<32, false>(const Relocate_info<32, false>* relinfo,
293	size_t relnum, off_t reloffset,
294	const char* format, ...);
295	#endif
296
297	#ifdef HAVE_TARGET_32_BIG
298	template
299	void
300	gold_warning_at_location<32, true>(const Relocate_info<32, true>* relinfo,
301	size_t relnum, off_t reloffset,
302	const char* format, ...);
303	#endif
304
305	#ifdef HAVE_TARGET_64_LITTLE
306	template
307	void
308	gold_warning_at_location<64, false>(const Relocate_info<64, false>* relinfo,
309	size_t relnum, off_t reloffset,
310	const char* format, ...);
311	#endif
312
313	#ifdef HAVE_TARGET_64_BIG
314	template
315	void
316	gold_warning_at_location<64, true>(const Relocate_info<64, true>* relinfo,
317	size_t relnum, off_t reloffset,
318	const char* format, ...);
319	#endif
320
321	#ifdef HAVE_TARGET_32_LITTLE
322	template
323	void
324	gold_undefined_symbol<32, false>(const Symbol* sym,
325	const Relocate_info<32, false>* relinfo,
326	size_t relnum, off_t reloffset);
327	#endif
328
329	#ifdef HAVE_TARGET_32_BIG
330	template
331	void
332	gold_undefined_symbol<32, true>(const Symbol* sym,
333	const Relocate_info<32, true>* relinfo,
334	size_t relnum, off_t reloffset);
335	#endif
336
337	#ifdef HAVE_TARGET_64_LITTLE
338	template
339	void
340	gold_undefined_symbol<64, false>(const Symbol* sym,
341	const Relocate_info<64, false>* relinfo,
342	size_t relnum, off_t reloffset);
343	#endif
344
345	#ifdef HAVE_TARGET_64_BIG
346	template
347	void
348	gold_undefined_symbol<64, true>(const Symbol* sym,
349	const Relocate_info<64, true>* relinfo,
350	size_t relnum, off_t reloffset);
351	#endif
352
353	} // End namespace gold.