The Tor Browser: toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to

toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 // 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 <string>
 #include "common/dwarf_line_to_module.h"
 #include "common/using_std_string.h"
 #include "common/logging.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_) {
         BPLOG(INFO) << "warning: DWARF line number data refers to undefined"
                     << " directory numbers";
         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_) {
       BPLOG(INFO) << "warning: DWARF line number data refers to "
                   << "undefined file numbers";
       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

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/dwarf_line_to_module.cc