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24f5931c5e
This change is resolving an issue that was caused by the combination of: - Android system libraries being relro packed in N+. - Breakpad dealing with relro packed libraries in a hack way. This is a fix for http://crbug/611824. I also found an use-after-free issue (bug in Minidump::SeekToStreamType). I disallowed the MinidumpStreamInfo copy and assign constructors and the compiler detected another similar issue in Minidump::Print. Then I disabled the copy and assign constructors for most classes in minidump.h (just in case). There are a couple of classes where I couldn't disallow them (since assign is used). This will require a small refactor so I left it out of this CL. R=mark@chromium.org Review URL: https://codereview.chromium.org/2060663002 .
99 lines
3.9 KiB
C++
99 lines
3.9 KiB
C++
// Copyright (c) 2006, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// basic_code_modules.h: Contains all of the CodeModule objects that
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// were loaded into a single process.
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//
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// This is a basic concrete implementation of CodeModules. It cannot be
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// instantiated directly, only based on other objects that implement
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// the CodeModules interface. It exists to provide a CodeModules
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// implementation a place to store information when the life of the original
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// object (such as a MinidumpModuleList) cannot be guaranteed.
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//
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// Author: Mark Mentovai
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#ifndef PROCESSOR_BASIC_CODE_MODULES_H__
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#define PROCESSOR_BASIC_CODE_MODULES_H__
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#include <stddef.h>
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#include <vector>
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#include "google_breakpad/processor/code_modules.h"
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#include "processor/linked_ptr.h"
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#include "processor/range_map.h"
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namespace google_breakpad {
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class BasicCodeModules : public CodeModules {
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public:
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// Creates a new BasicCodeModules object given any existing CodeModules
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// implementation. This is useful to make a copy of the data relevant to
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// the CodeModules and CodeModule interfaces without requiring all of the
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// resources that other implementations may require. A copy will be
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// made of each contained CodeModule using CodeModule::Copy.
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explicit BasicCodeModules(const CodeModules *that);
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virtual ~BasicCodeModules();
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// See code_modules.h for descriptions of these methods.
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virtual unsigned int module_count() const;
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virtual const CodeModule* GetModuleForAddress(uint64_t address) const;
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virtual const CodeModule* GetMainModule() const;
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virtual const CodeModule* GetModuleAtSequence(unsigned int sequence) const;
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virtual const CodeModule* GetModuleAtIndex(unsigned int index) const;
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virtual const CodeModules* Copy() const;
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virtual std::vector<linked_ptr<const CodeModule> >
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GetShrunkRangeModules() const;
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virtual bool IsModuleShrinkEnabled() const;
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protected:
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BasicCodeModules();
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// The base address of the main module.
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uint64_t main_address_;
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// The map used to contain each CodeModule, keyed by each CodeModule's
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// address range.
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RangeMap<uint64_t, linked_ptr<const CodeModule> > map_;
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// A vector of all CodeModules that were shrunk downs due to
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// address range conflicts.
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std::vector<linked_ptr<const CodeModule> > shrunk_range_modules_;
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private:
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// Disallow copy constructor and assignment operator.
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BasicCodeModules(const BasicCodeModules &that);
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void operator=(const BasicCodeModules &that);
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};
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} // namespace google_breakpad
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#endif // PROCESSOR_BASIC_CODE_MODULES_H__
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