mirror of git://gcc.gnu.org/git/gcc.git
960 lines
26 KiB
C++
960 lines
26 KiB
C++
// Debugging mode support code -*- C++ -*-
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// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
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// 2011, 2012 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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#include <debug/debug.h>
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#include <debug/safe_sequence.h>
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#include <debug/safe_unordered_container.h>
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#include <debug/safe_iterator.h>
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#include <debug/safe_local_iterator.h>
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#include <algorithm>
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#include <cassert>
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#include <cstring>
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#include <cctype>
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#include <cstdio>
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#include <cstdlib>
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#include <functional>
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using namespace std;
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namespace
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{
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/** Returns different instances of __mutex depending on the passed address
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* in order to limit contention without breaking current library binary
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* compatibility. */
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__gnu_cxx::__mutex&
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get_safe_base_mutex(void* __address)
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{
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const size_t mask = 0xf;
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static __gnu_cxx::__mutex safe_base_mutex[mask + 1];
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const size_t index = _Hash_impl::hash(__address) & mask;
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return safe_base_mutex[index];
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}
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void
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swap_its(__gnu_debug::_Safe_sequence_base& __lhs,
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__gnu_debug::_Safe_iterator_base*& __lhs_its,
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__gnu_debug::_Safe_sequence_base& __rhs,
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__gnu_debug::_Safe_iterator_base*& __rhs_its)
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{
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swap(__lhs_its, __rhs_its);
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__gnu_debug::_Safe_iterator_base* __iter;
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for (__iter = __rhs_its; __iter; __iter = __iter->_M_next)
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__iter->_M_sequence = &__rhs;
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for (__iter = __lhs_its; __iter; __iter = __iter->_M_next)
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__iter->_M_sequence = &__lhs;
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}
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void
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swap_seq(__gnu_debug::_Safe_sequence_base& __lhs,
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__gnu_debug::_Safe_sequence_base& __rhs)
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{
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swap(__lhs._M_version, __rhs._M_version);
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swap_its(__lhs, __lhs._M_iterators,
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__rhs, __rhs._M_iterators);
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swap_its(__lhs, __lhs._M_const_iterators,
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__rhs, __rhs._M_const_iterators);
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}
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void
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swap_ucont(__gnu_debug::_Safe_unordered_container_base& __lhs,
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__gnu_debug::_Safe_unordered_container_base& __rhs)
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{
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swap_seq(__lhs, __rhs);
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swap_its(__lhs, __lhs._M_local_iterators,
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__rhs, __rhs._M_local_iterators);
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swap_its(__lhs, __lhs._M_const_local_iterators,
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__rhs, __rhs._M_const_local_iterators);
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}
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void
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detach_all(__gnu_debug::_Safe_iterator_base* __iter)
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{
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for (; __iter;)
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{
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__gnu_debug::_Safe_iterator_base* __old = __iter;
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__iter = __iter->_M_next;
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__old->_M_reset();
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}
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}
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} // anonymous namespace
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namespace __gnu_debug
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{
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const char* _S_debug_messages[] =
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{
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// General Checks
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"function requires a valid iterator range [%1.name;, %2.name;)",
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"attempt to insert into container with a singular iterator",
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"attempt to insert into container with an iterator"
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" from a different container",
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"attempt to erase from container with a %2.state; iterator",
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"attempt to erase from container with an iterator"
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" from a different container",
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"attempt to subscript container with out-of-bounds index %2;,"
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" but container only holds %3; elements",
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"attempt to access an element in an empty container",
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"elements in iterator range [%1.name;, %2.name;)"
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" are not partitioned by the value %3;",
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"elements in iterator range [%1.name;, %2.name;)"
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" are not partitioned by the predicate %3; and value %4;",
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"elements in iterator range [%1.name;, %2.name;) are not sorted",
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"elements in iterator range [%1.name;, %2.name;)"
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" are not sorted according to the predicate %3;",
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"elements in iterator range [%1.name;, %2.name;) do not form a heap",
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"elements in iterator range [%1.name;, %2.name;)"
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" do not form a heap with respect to the predicate %3;",
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// std::bitset checks
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"attempt to write through a singular bitset reference",
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"attempt to read from a singular bitset reference",
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"attempt to flip a singular bitset reference",
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// std::list checks
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"attempt to splice a list into itself",
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"attempt to splice lists with inequal allocators",
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"attempt to splice elements referenced by a %1.state; iterator",
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"attempt to splice an iterator from a different container",
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"splice destination %1.name;"
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" occurs within source range [%2.name;, %3.name;)",
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// iterator checks
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"attempt to initialize an iterator that will immediately become singular",
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"attempt to copy-construct an iterator from a singular iterator",
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"attempt to construct a constant iterator"
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" from a singular mutable iterator",
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"attempt to copy from a singular iterator",
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"attempt to dereference a %1.state; iterator",
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"attempt to increment a %1.state; iterator",
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"attempt to decrement a %1.state; iterator",
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"attempt to subscript a %1.state; iterator %2; step from"
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" its current position, which falls outside its dereferenceable range",
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"attempt to advance a %1.state; iterator %2; steps,"
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" which falls outside its valid range",
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"attempt to retreat a %1.state; iterator %2; steps,"
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" which falls outside its valid range",
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"attempt to compare a %1.state; iterator to a %2.state; iterator",
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"attempt to compare iterators from different sequences",
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"attempt to order a %1.state; iterator to a %2.state; iterator",
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"attempt to order iterators from different sequences",
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"attempt to compute the difference between a %1.state;"
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" iterator to a %2.state; iterator",
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"attempt to compute the different between two iterators"
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" from different sequences",
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// istream_iterator
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"attempt to dereference an end-of-stream istream_iterator",
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"attempt to increment an end-of-stream istream_iterator",
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// ostream_iterator
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"attempt to output via an ostream_iterator with no associated stream",
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// istreambuf_iterator
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"attempt to dereference an end-of-stream istreambuf_iterator"
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" (this is a GNU extension)",
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"attempt to increment an end-of-stream istreambuf_iterator",
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// std::forward_list
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"attempt to insert into container after an end iterator",
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"attempt to erase from container after a %2.state; iterator not followed"
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" by a dereferenceable one",
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"function requires a valid iterator range (%2.name;, %3.name;)"
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", \"%2.name;\" shall be before and not equal to \"%3.name;\"",
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// std::unordered_container::local_iterator
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"attempt to compare local iterators from different unordered container"
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" buckets",
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"function requires a non-empty iterator range [%1.name;, %2.name;)",
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"attempt to self move assign"
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};
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void
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_Safe_sequence_base::
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_M_detach_all()
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{
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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detach_all(_M_iterators);
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_M_iterators = 0;
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detach_all(_M_const_iterators);
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_M_const_iterators = 0;
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}
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void
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_Safe_sequence_base::
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_M_detach_singular()
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{
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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for (_Safe_iterator_base* __iter = _M_iterators; __iter;)
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{
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_Safe_iterator_base* __old = __iter;
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__iter = __iter->_M_next;
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if (__old->_M_singular())
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__old->_M_detach_single();
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}
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for (_Safe_iterator_base* __iter2 = _M_const_iterators; __iter2;)
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{
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_Safe_iterator_base* __old = __iter2;
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__iter2 = __iter2->_M_next;
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if (__old->_M_singular())
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__old->_M_detach_single();
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}
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}
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void
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_Safe_sequence_base::
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_M_revalidate_singular()
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{
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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for (_Safe_iterator_base* __iter = _M_iterators; __iter;
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__iter = __iter->_M_next)
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__iter->_M_version = _M_version;
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for (_Safe_iterator_base* __iter2 = _M_const_iterators; __iter2;
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__iter2 = __iter2->_M_next)
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__iter2->_M_version = _M_version;
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}
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void
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_Safe_sequence_base::
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_M_swap(_Safe_sequence_base& __x)
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{
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// We need to lock both sequences to swap
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using namespace __gnu_cxx;
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__mutex *__this_mutex = &_M_get_mutex();
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__mutex *__x_mutex = &__x._M_get_mutex();
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if (__this_mutex == __x_mutex)
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{
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__scoped_lock __lock(*__this_mutex);
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swap_seq(*this, __x);
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}
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else
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{
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__scoped_lock __l1(__this_mutex < __x_mutex
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? *__this_mutex : *__x_mutex);
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__scoped_lock __l2(__this_mutex < __x_mutex
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? *__x_mutex : *__this_mutex);
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swap_seq(*this, __x);
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}
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}
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__gnu_cxx::__mutex&
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_Safe_sequence_base::
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_M_get_mutex() throw ()
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{ return get_safe_base_mutex(this); }
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void
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_Safe_sequence_base::
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_M_attach(_Safe_iterator_base* __it, bool __constant)
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{
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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_M_attach_single(__it, __constant);
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}
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void
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_Safe_sequence_base::
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_M_attach_single(_Safe_iterator_base* __it, bool __constant) throw ()
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{
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_Safe_iterator_base*& __its =
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__constant ? _M_const_iterators : _M_iterators;
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__it->_M_next = __its;
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if (__it->_M_next)
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__it->_M_next->_M_prior = __it;
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__its = __it;
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}
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void
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_Safe_sequence_base::
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_M_detach(_Safe_iterator_base* __it)
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{
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// Remove __it from this sequence's list
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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_M_detach_single(__it);
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}
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void
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_Safe_sequence_base::
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_M_detach_single(_Safe_iterator_base* __it) throw ()
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{
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// Remove __it from this sequence's list
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__it->_M_unlink();
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if (_M_const_iterators == __it)
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_M_const_iterators = __it->_M_next;
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if (_M_iterators == __it)
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_M_iterators = __it->_M_next;
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}
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void
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_Safe_iterator_base::
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_M_attach(_Safe_sequence_base* __seq, bool __constant)
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{
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_M_detach();
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// Attach to the new sequence (if there is one)
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if (__seq)
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{
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_M_sequence = __seq;
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_M_version = _M_sequence->_M_version;
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_M_sequence->_M_attach(this, __constant);
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}
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}
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void
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_Safe_iterator_base::
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_M_attach_single(_Safe_sequence_base* __seq, bool __constant) throw ()
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{
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_M_detach_single();
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// Attach to the new sequence (if there is one)
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if (__seq)
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{
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_M_sequence = __seq;
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_M_version = _M_sequence->_M_version;
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_M_sequence->_M_attach_single(this, __constant);
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}
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}
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void
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_Safe_iterator_base::
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_M_detach()
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{
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if (_M_sequence)
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_M_sequence->_M_detach(this);
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_M_reset();
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}
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void
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_Safe_iterator_base::
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_M_detach_single() throw ()
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{
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if (_M_sequence)
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_M_sequence->_M_detach_single(this);
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_M_reset();
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}
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void
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_Safe_iterator_base::
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_M_reset() throw ()
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{
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_M_sequence = 0;
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_M_version = 0;
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_M_prior = 0;
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_M_next = 0;
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}
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bool
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_Safe_iterator_base::
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_M_singular() const throw ()
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{ return !_M_sequence || _M_version != _M_sequence->_M_version; }
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bool
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_Safe_iterator_base::
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_M_can_compare(const _Safe_iterator_base& __x) const throw ()
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{
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return (!_M_singular()
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&& !__x._M_singular() && _M_sequence == __x._M_sequence);
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}
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__gnu_cxx::__mutex&
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_Safe_iterator_base::
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_M_get_mutex() throw ()
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{ return get_safe_base_mutex(_M_sequence); }
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_Safe_unordered_container_base*
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_Safe_local_iterator_base::
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_M_get_container() const _GLIBCXX_NOEXCEPT
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{ return static_cast<_Safe_unordered_container_base*>(_M_sequence); }
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void
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_Safe_local_iterator_base::
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_M_attach(_Safe_sequence_base* __cont, bool __constant)
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{
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_M_detach();
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// Attach to the new container (if there is one)
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if (__cont)
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{
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_M_sequence = __cont;
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_M_version = _M_sequence->_M_version;
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_M_get_container()->_M_attach_local(this, __constant);
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}
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}
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void
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_Safe_local_iterator_base::
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_M_attach_single(_Safe_sequence_base* __cont, bool __constant) throw ()
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{
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_M_detach_single();
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// Attach to the new container (if there is one)
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if (__cont)
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{
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_M_sequence = __cont;
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_M_version = _M_sequence->_M_version;
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_M_get_container()->_M_attach_local_single(this, __constant);
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}
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}
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void
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_Safe_local_iterator_base::
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_M_detach()
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{
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if (_M_sequence)
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_M_get_container()->_M_detach_local(this);
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_M_reset();
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}
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void
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_Safe_local_iterator_base::
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_M_detach_single() throw ()
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{
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if (_M_sequence)
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_M_get_container()->_M_detach_local_single(this);
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_M_reset();
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}
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void
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_Safe_unordered_container_base::
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_M_detach_all()
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{
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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detach_all(_M_iterators);
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_M_iterators = 0;
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detach_all(_M_const_iterators);
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_M_const_iterators = 0;
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detach_all(_M_local_iterators);
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_M_local_iterators = 0;
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detach_all(_M_const_local_iterators);
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_M_const_local_iterators = 0;
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}
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void
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_Safe_unordered_container_base::
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_M_swap(_Safe_unordered_container_base& __x)
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{
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// We need to lock both containers to swap
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using namespace __gnu_cxx;
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__mutex *__this_mutex = &_M_get_mutex();
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__mutex *__x_mutex = &__x._M_get_mutex();
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if (__this_mutex == __x_mutex)
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{
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__scoped_lock __lock(*__this_mutex);
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swap_ucont(*this, __x);
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}
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else
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{
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__scoped_lock __l1(__this_mutex < __x_mutex
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? *__this_mutex : *__x_mutex);
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__scoped_lock __l2(__this_mutex < __x_mutex
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? *__x_mutex : *__this_mutex);
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swap_ucont(*this, __x);
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}
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}
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void
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_Safe_unordered_container_base::
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_M_attach_local(_Safe_iterator_base* __it, bool __constant)
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{
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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_M_attach_local_single(__it, __constant);
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}
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void
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_Safe_unordered_container_base::
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_M_attach_local_single(_Safe_iterator_base* __it, bool __constant) throw ()
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{
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_Safe_iterator_base*& __its =
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__constant ? _M_const_local_iterators : _M_local_iterators;
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__it->_M_next = __its;
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if (__it->_M_next)
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__it->_M_next->_M_prior = __it;
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__its = __it;
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}
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void
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_Safe_unordered_container_base::
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_M_detach_local(_Safe_iterator_base* __it)
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{
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// Remove __it from this container's list
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__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
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_M_detach_local_single(__it);
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}
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void
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_Safe_unordered_container_base::
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_M_detach_local_single(_Safe_iterator_base* __it) throw ()
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|
{
|
|
// Remove __it from this container's list
|
|
__it->_M_unlink();
|
|
if (_M_const_local_iterators == __it)
|
|
_M_const_local_iterators = __it->_M_next;
|
|
if (_M_local_iterators == __it)
|
|
_M_local_iterators = __it->_M_next;
|
|
}
|
|
|
|
void
|
|
_Error_formatter::_Parameter::
|
|
_M_print_field(const _Error_formatter* __formatter, const char* __name) const
|
|
{
|
|
assert(this->_M_kind != _Parameter::__unused_param);
|
|
const int __bufsize = 64;
|
|
char __buf[__bufsize];
|
|
|
|
if (_M_kind == __iterator)
|
|
{
|
|
if (strcmp(__name, "name") == 0)
|
|
{
|
|
assert(_M_variant._M_iterator._M_name);
|
|
__formatter->_M_print_word(_M_variant._M_iterator._M_name);
|
|
}
|
|
else if (strcmp(__name, "address") == 0)
|
|
{
|
|
__formatter->_M_format_word(__buf, __bufsize, "%p",
|
|
_M_variant._M_iterator._M_address);
|
|
__formatter->_M_print_word(__buf);
|
|
}
|
|
else if (strcmp(__name, "type") == 0)
|
|
{
|
|
if (!_M_variant._M_iterator._M_type)
|
|
__formatter->_M_print_word("<unknown type>");
|
|
else
|
|
// TBD: demangle!
|
|
__formatter->_M_print_word(_M_variant._M_iterator.
|
|
_M_type->name());
|
|
}
|
|
else if (strcmp(__name, "constness") == 0)
|
|
{
|
|
static const char* __constness_names[__last_constness] =
|
|
{
|
|
"<unknown>",
|
|
"constant",
|
|
"mutable"
|
|
};
|
|
__formatter->_M_print_word(__constness_names[_M_variant.
|
|
_M_iterator.
|
|
_M_constness]);
|
|
}
|
|
else if (strcmp(__name, "state") == 0)
|
|
{
|
|
static const char* __state_names[__last_state] =
|
|
{
|
|
"<unknown>",
|
|
"singular",
|
|
"dereferenceable (start-of-sequence)",
|
|
"dereferenceable",
|
|
"past-the-end",
|
|
"before-begin"
|
|
};
|
|
__formatter->_M_print_word(__state_names[_M_variant.
|
|
_M_iterator._M_state]);
|
|
}
|
|
else if (strcmp(__name, "sequence") == 0)
|
|
{
|
|
assert(_M_variant._M_iterator._M_sequence);
|
|
__formatter->_M_format_word(__buf, __bufsize, "%p",
|
|
_M_variant._M_iterator._M_sequence);
|
|
__formatter->_M_print_word(__buf);
|
|
}
|
|
else if (strcmp(__name, "seq_type") == 0)
|
|
{
|
|
if (!_M_variant._M_iterator._M_seq_type)
|
|
__formatter->_M_print_word("<unknown seq_type>");
|
|
else
|
|
// TBD: demangle!
|
|
__formatter->_M_print_word(_M_variant._M_iterator.
|
|
_M_seq_type->name());
|
|
}
|
|
else
|
|
assert(false);
|
|
}
|
|
else if (_M_kind == __sequence)
|
|
{
|
|
if (strcmp(__name, "name") == 0)
|
|
{
|
|
assert(_M_variant._M_sequence._M_name);
|
|
__formatter->_M_print_word(_M_variant._M_sequence._M_name);
|
|
}
|
|
else if (strcmp(__name, "address") == 0)
|
|
{
|
|
assert(_M_variant._M_sequence._M_address);
|
|
__formatter->_M_format_word(__buf, __bufsize, "%p",
|
|
_M_variant._M_sequence._M_address);
|
|
__formatter->_M_print_word(__buf);
|
|
}
|
|
else if (strcmp(__name, "type") == 0)
|
|
{
|
|
if (!_M_variant._M_sequence._M_type)
|
|
__formatter->_M_print_word("<unknown type>");
|
|
else
|
|
// TBD: demangle!
|
|
__formatter->_M_print_word(_M_variant._M_sequence.
|
|
_M_type->name());
|
|
}
|
|
else
|
|
assert(false);
|
|
}
|
|
else if (_M_kind == __integer)
|
|
{
|
|
if (strcmp(__name, "name") == 0)
|
|
{
|
|
assert(_M_variant._M_integer._M_name);
|
|
__formatter->_M_print_word(_M_variant._M_integer._M_name);
|
|
}
|
|
else
|
|
assert(false);
|
|
}
|
|
else if (_M_kind == __string)
|
|
{
|
|
if (strcmp(__name, "name") == 0)
|
|
{
|
|
assert(_M_variant._M_string._M_name);
|
|
__formatter->_M_print_word(_M_variant._M_string._M_name);
|
|
}
|
|
else
|
|
assert(false);
|
|
}
|
|
else
|
|
{
|
|
assert(false);
|
|
}
|
|
}
|
|
|
|
void
|
|
_Error_formatter::_Parameter::
|
|
_M_print_description(const _Error_formatter* __formatter) const
|
|
{
|
|
const int __bufsize = 128;
|
|
char __buf[__bufsize];
|
|
|
|
if (_M_kind == __iterator)
|
|
{
|
|
__formatter->_M_print_word("iterator ");
|
|
if (_M_variant._M_iterator._M_name)
|
|
{
|
|
__formatter->_M_format_word(__buf, __bufsize, "\"%s\" ",
|
|
_M_variant._M_iterator._M_name);
|
|
__formatter->_M_print_word(__buf);
|
|
}
|
|
|
|
__formatter->_M_format_word(__buf, __bufsize, "@ 0x%p {\n",
|
|
_M_variant._M_iterator._M_address);
|
|
__formatter->_M_print_word(__buf);
|
|
if (_M_variant._M_iterator._M_type)
|
|
{
|
|
__formatter->_M_print_word("type = ");
|
|
_M_print_field(__formatter, "type");
|
|
|
|
if (_M_variant._M_iterator._M_constness != __unknown_constness)
|
|
{
|
|
__formatter->_M_print_word(" (");
|
|
_M_print_field(__formatter, "constness");
|
|
__formatter->_M_print_word(" iterator)");
|
|
}
|
|
__formatter->_M_print_word(";\n");
|
|
}
|
|
|
|
if (_M_variant._M_iterator._M_state != __unknown_state)
|
|
{
|
|
__formatter->_M_print_word(" state = ");
|
|
_M_print_field(__formatter, "state");
|
|
__formatter->_M_print_word(";\n");
|
|
}
|
|
|
|
if (_M_variant._M_iterator._M_sequence)
|
|
{
|
|
__formatter->_M_print_word(" references sequence ");
|
|
if (_M_variant._M_iterator._M_seq_type)
|
|
{
|
|
__formatter->_M_print_word("with type `");
|
|
_M_print_field(__formatter, "seq_type");
|
|
__formatter->_M_print_word("' ");
|
|
}
|
|
|
|
__formatter->_M_format_word(__buf, __bufsize, "@ 0x%p\n",
|
|
_M_variant._M_sequence._M_address);
|
|
__formatter->_M_print_word(__buf);
|
|
}
|
|
__formatter->_M_print_word("}\n");
|
|
}
|
|
else if (_M_kind == __sequence)
|
|
{
|
|
__formatter->_M_print_word("sequence ");
|
|
if (_M_variant._M_sequence._M_name)
|
|
{
|
|
__formatter->_M_format_word(__buf, __bufsize, "\"%s\" ",
|
|
_M_variant._M_sequence._M_name);
|
|
__formatter->_M_print_word(__buf);
|
|
}
|
|
|
|
__formatter->_M_format_word(__buf, __bufsize, "@ 0x%p {\n",
|
|
_M_variant._M_sequence._M_address);
|
|
__formatter->_M_print_word(__buf);
|
|
|
|
if (_M_variant._M_sequence._M_type)
|
|
{
|
|
__formatter->_M_print_word(" type = ");
|
|
_M_print_field(__formatter, "type");
|
|
__formatter->_M_print_word(";\n");
|
|
}
|
|
__formatter->_M_print_word("}\n");
|
|
}
|
|
}
|
|
|
|
const _Error_formatter&
|
|
_Error_formatter::_M_message(_Debug_msg_id __id) const throw ()
|
|
{ return this->_M_message(_S_debug_messages[__id]); }
|
|
|
|
void
|
|
_Error_formatter::_M_error() const
|
|
{
|
|
const int __bufsize = 128;
|
|
char __buf[__bufsize];
|
|
|
|
// Emit file & line number information
|
|
_M_column = 1;
|
|
_M_wordwrap = false;
|
|
if (_M_file)
|
|
{
|
|
_M_format_word(__buf, __bufsize, "%s:", _M_file);
|
|
_M_print_word(__buf);
|
|
_M_column += strlen(__buf);
|
|
}
|
|
|
|
if (_M_line > 0)
|
|
{
|
|
_M_format_word(__buf, __bufsize, "%u:", _M_line);
|
|
_M_print_word(__buf);
|
|
_M_column += strlen(__buf);
|
|
}
|
|
|
|
if (_M_max_length)
|
|
_M_wordwrap = true;
|
|
_M_print_word("error: ");
|
|
|
|
// Print the error message
|
|
assert(_M_text);
|
|
_M_print_string(_M_text);
|
|
_M_print_word(".\n");
|
|
|
|
// Emit descriptions of the objects involved in the operation
|
|
_M_wordwrap = false;
|
|
bool __has_noninteger_parameters = false;
|
|
for (unsigned int __i = 0; __i < _M_num_parameters; ++__i)
|
|
{
|
|
if (_M_parameters[__i]._M_kind == _Parameter::__iterator
|
|
|| _M_parameters[__i]._M_kind == _Parameter::__sequence)
|
|
{
|
|
if (!__has_noninteger_parameters)
|
|
{
|
|
_M_first_line = true;
|
|
_M_print_word("\nObjects involved in the operation:\n");
|
|
__has_noninteger_parameters = true;
|
|
}
|
|
_M_parameters[__i]._M_print_description(this);
|
|
}
|
|
}
|
|
|
|
abort();
|
|
}
|
|
|
|
template<typename _Tp>
|
|
void
|
|
_Error_formatter::_M_format_word(char* __buf,
|
|
int __n __attribute__ ((__unused__)),
|
|
const char* __fmt, _Tp __s) const throw ()
|
|
{
|
|
#ifdef _GLIBCXX_USE_C99
|
|
std::snprintf(__buf, __n, __fmt, __s);
|
|
#else
|
|
std::sprintf(__buf, __fmt, __s);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
_Error_formatter::_M_print_word(const char* __word) const
|
|
{
|
|
if (!_M_wordwrap)
|
|
{
|
|
fprintf(stderr, "%s", __word);
|
|
return;
|
|
}
|
|
|
|
size_t __length = strlen(__word);
|
|
if (__length == 0)
|
|
return;
|
|
|
|
if ((_M_column + __length < _M_max_length)
|
|
|| (__length >= _M_max_length && _M_column == 1))
|
|
{
|
|
// If this isn't the first line, indent
|
|
if (_M_column == 1 && !_M_first_line)
|
|
{
|
|
char __spacing[_M_indent + 1];
|
|
for (int i = 0; i < _M_indent; ++i)
|
|
__spacing[i] = ' ';
|
|
__spacing[_M_indent] = '\0';
|
|
fprintf(stderr, "%s", __spacing);
|
|
_M_column += _M_indent;
|
|
}
|
|
|
|
fprintf(stderr, "%s", __word);
|
|
_M_column += __length;
|
|
|
|
if (__word[__length - 1] == '\n')
|
|
{
|
|
_M_first_line = false;
|
|
_M_column = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_M_column = 1;
|
|
_M_print_word("\n");
|
|
_M_print_word(__word);
|
|
}
|
|
}
|
|
|
|
void
|
|
_Error_formatter::
|
|
_M_print_string(const char* __string) const
|
|
{
|
|
const char* __start = __string;
|
|
const char* __finish = __start;
|
|
const int __bufsize = 128;
|
|
char __buf[__bufsize];
|
|
|
|
while (*__start)
|
|
{
|
|
if (*__start != '%')
|
|
{
|
|
// [__start, __finish) denotes the next word
|
|
__finish = __start;
|
|
while (isalnum(*__finish))
|
|
++__finish;
|
|
if (__start == __finish)
|
|
++__finish;
|
|
if (isspace(*__finish))
|
|
++__finish;
|
|
|
|
const ptrdiff_t __len = __finish - __start;
|
|
assert(__len < __bufsize);
|
|
memcpy(__buf, __start, __len);
|
|
__buf[__len] = '\0';
|
|
_M_print_word(__buf);
|
|
__start = __finish;
|
|
|
|
// Skip extra whitespace
|
|
while (*__start == ' ')
|
|
++__start;
|
|
|
|
continue;
|
|
}
|
|
|
|
++__start;
|
|
assert(*__start);
|
|
if (*__start == '%')
|
|
{
|
|
_M_print_word("%");
|
|
++__start;
|
|
continue;
|
|
}
|
|
|
|
// Get the parameter number
|
|
assert(*__start >= '1' && *__start <= '9');
|
|
size_t __param = *__start - '0';
|
|
--__param;
|
|
assert(__param < _M_num_parameters);
|
|
|
|
// '.' separates the parameter number from the field
|
|
// name, if there is one.
|
|
++__start;
|
|
if (*__start != '.')
|
|
{
|
|
assert(*__start == ';');
|
|
++__start;
|
|
__buf[0] = '\0';
|
|
if (_M_parameters[__param]._M_kind == _Parameter::__integer)
|
|
{
|
|
_M_format_word(__buf, __bufsize, "%ld",
|
|
_M_parameters[__param]._M_variant._M_integer._M_value);
|
|
_M_print_word(__buf);
|
|
}
|
|
else if (_M_parameters[__param]._M_kind == _Parameter::__string)
|
|
_M_print_string(_M_parameters[__param]._M_variant._M_string._M_value);
|
|
continue;
|
|
}
|
|
|
|
// Extract the field name we want
|
|
enum { __max_field_len = 16 };
|
|
char __field[__max_field_len];
|
|
int __field_idx = 0;
|
|
++__start;
|
|
while (*__start != ';')
|
|
{
|
|
assert(*__start);
|
|
assert(__field_idx < __max_field_len-1);
|
|
__field[__field_idx++] = *__start++;
|
|
}
|
|
++__start;
|
|
__field[__field_idx] = 0;
|
|
|
|
_M_parameters[__param]._M_print_field(this, __field);
|
|
}
|
|
}
|
|
|
|
void
|
|
_Error_formatter::_M_get_max_length() const throw ()
|
|
{
|
|
const char* __nptr = std::getenv("GLIBCXX_DEBUG_MESSAGE_LENGTH");
|
|
if (__nptr)
|
|
{
|
|
char* __endptr;
|
|
const unsigned long __ret = std::strtoul(__nptr, &__endptr, 0);
|
|
if (*__nptr != '\0' && *__endptr == '\0')
|
|
_M_max_length = __ret;
|
|
}
|
|
}
|
|
|
|
// Instantiations.
|
|
template
|
|
void
|
|
_Error_formatter::_M_format_word(char*, int, const char*,
|
|
const void*) const;
|
|
|
|
template
|
|
void
|
|
_Error_formatter::_M_format_word(char*, int, const char*, long) const;
|
|
|
|
template
|
|
void
|
|
_Error_formatter::_M_format_word(char*, int, const char*,
|
|
std::size_t) const;
|
|
|
|
template
|
|
void
|
|
_Error_formatter::_M_format_word(char*, int, const char*,
|
|
const char*) const;
|
|
} // namespace __gnu_debug
|