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Diffstat (limited to 'binutils-2.25/gold/errors.h')
-rw-r--r-- | binutils-2.25/gold/errors.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/binutils-2.25/gold/errors.h b/binutils-2.25/gold/errors.h new file mode 100644 index 00000000..1e61c8db --- /dev/null +++ b/binutils-2.25/gold/errors.h @@ -0,0 +1,138 @@ +// errors.h -- handle errors for gold -*- C++ -*- + +// 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. + +#ifndef GOLD_ERRORS_H +#define GOLD_ERRORS_H + +#include <cstdarg> + +#include "gold-threads.h" + +namespace gold +{ + +class Symbol; +template<int size, bool big_endian> +struct Relocate_info; + +// This class handles errors for gold. There is a single instance +// which is used by all threads. If and when we make the gold code +// more amenable to being used in a library, we will make this an +// abstract interface class, and expect the caller to provide their +// own instantiation. + +class Errors +{ + public: + Errors(const char* program_name); + + // Report a fatal error. After printing the error, this must exit. + void + fatal(const char* format, va_list) ATTRIBUTE_NORETURN; + + // Report a fallback error. After printing the error, this must exit + // with a special status code indicating that fallback to + // --incremental-full is required. + void + fallback(const char* format, va_list) ATTRIBUTE_NORETURN; + + // Report an error and continue. + void + error(const char* format, va_list); + + // Report a warning and continue. + void + warning(const char* format, va_list); + + // Print an informational message and continue. + void + info(const char* format, va_list); + + // Report an error at a reloc location. + template<int size, bool big_endian> + void + error_at_location(const Relocate_info<size, big_endian>* relinfo, + size_t relnum, off_t reloffset, + const char* format, va_list); + + // Report a warning at a reloc location. + template<int size, bool big_endian> + void + warning_at_location(const Relocate_info<size, big_endian>* relinfo, + size_t relnum, off_t reloffset, + const char* format, va_list); + + // Issue an undefined symbol error. LOCATION is the location of + // the error (typically an object file name or relocation info). + void + undefined_symbol(const Symbol* sym, const std::string& location); + + // Report a debugging message. + void + debug(const char* format, ...) ATTRIBUTE_PRINTF_2; + + // Return the number of errors. + int + error_count() const + { return this->error_count_; } + + // Return the number of warnings. + int + warning_count() const + { return this->warning_count_; } + + private: + Errors(const Errors&); + Errors& operator=(const Errors&); + + // Initialize the lock. We don't do this in the constructor because + // lock initialization wants to know whether we are using threads or + // not. This returns true if the lock is now initialized. + bool + initialize_lock(); + + // Increment a counter, holding the lock. + void + increment_counter(int*); + + // The number of times we report an undefined symbol. + static const int max_undefined_error_report = 5; + + // The name of the program. + const char* program_name_; + // This class can be accessed from multiple threads. This lock is + // used to control access to the data structures. + Lock* lock_; + // Used to initialize the lock_ field exactly once. + Initialize_lock initialize_lock_; + // Numbers of errors reported. + int error_count_; + // Number of warnings reported. + int warning_count_; + // A map counting the numbers of times we have seen an undefined + // symbol. + Unordered_map<const Symbol*, int> undefined_symbols_; +}; + +} // End namespace gold. + +#endif // !defined(GOLD_ERRORS_H) |