diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc b/toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc deleted file mode 100644 index 258b0b603..000000000 --- a/toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc +++ /dev/null @@ -1,143 +0,0 @@ -// Copyright (c) 2010 Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> - -// dwarf_line_to_module.cc: Implementation of DwarfLineToModule class. -// See dwarf_line_to_module.h for details. - -#include <stdio.h> - -#include <string> - -#include "common/dwarf_line_to_module.h" -#include "common/using_std_string.h" - -// Trying to support Windows paths in a reasonable way adds a lot of -// variations to test; it would be better to just put off dealing with -// it until we actually have to deal with DWARF on Windows. - -// Return true if PATH is an absolute path, false if it is relative. -static bool PathIsAbsolute(const string &path) { - return (path.size() >= 1 && path[0] == '/'); -} - -static bool HasTrailingSlash(const string &path) { - return (path.size() >= 1 && path[path.size() - 1] == '/'); -} - -// If PATH is an absolute path, return PATH. If PATH is a relative path, -// treat it as relative to BASE and return the combined path. -static string ExpandPath(const string &path, - const string &base) { - if (PathIsAbsolute(path) || base.empty()) - return path; - return base + (HasTrailingSlash(base) ? "" : "/") + path; -} - -namespace google_breakpad { - -void DwarfLineToModule::DefineDir(const string &name, uint32 dir_num) { - // Directory number zero is reserved to mean the compilation - // directory. Silently ignore attempts to redefine it. - if (dir_num != 0) - directories_[dir_num] = ExpandPath(name, compilation_dir_); -} - -void DwarfLineToModule::DefineFile(const string &name, int32 file_num, - uint32 dir_num, uint64 mod_time, - uint64 length) { - if (file_num == -1) - file_num = ++highest_file_number_; - else if (file_num > highest_file_number_) - highest_file_number_ = file_num; - - string dir_name; - if (dir_num == 0) { - // Directory number zero is the compilation directory, and is stored as - // an attribute on the compilation unit, rather than in the program table. - dir_name = compilation_dir_; - } else { - DirectoryTable::const_iterator directory_it = directories_.find(dir_num); - if (directory_it != directories_.end()) { - dir_name = directory_it->second; - } else { - if (!warned_bad_directory_number_) { - fprintf(stderr, "warning: DWARF line number data refers to undefined" - " directory numbers\n"); - warned_bad_directory_number_ = true; - } - } - } - - string full_name = ExpandPath(name, dir_name); - - // Find a Module::File object of the given name, and add it to the - // file table. - files_[file_num] = module_->FindFile(full_name); -} - -void DwarfLineToModule::AddLine(uint64 address, uint64 length, - uint32 file_num, uint32 line_num, - uint32 column_num) { - if (length == 0) - return; - - // Clip lines not to extend beyond the end of the address space. - if (address + length < address) - length = -address; - - // Should we omit this line? (See the comments for omitted_line_end_.) - if (address == 0 || address == omitted_line_end_) { - omitted_line_end_ = address + length; - return; - } else { - omitted_line_end_ = 0; - } - - // Find the source file being referred to. - Module::File *file = files_[file_num]; - if (!file) { - if (!warned_bad_file_number_) { - fprintf(stderr, "warning: DWARF line number data refers to " - "undefined file numbers\n"); - warned_bad_file_number_ = true; - } - return; - } - Module::Line line; - line.address = address; - // We set the size when we get the next line or the EndSequence call. - line.size = length; - line.file = file; - line.number = line_num; - lines_->push_back(line); -} - -} // namespace google_breakpad |