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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/tools/linux/md2core/minidump_memory_range.h')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/tools/linux/md2core/minidump_memory_range.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/tools/linux/md2core/minidump_memory_range.h b/toolkit/crashreporter/google-breakpad/src/tools/linux/md2core/minidump_memory_range.h new file mode 100644 index 0000000000..a793e2cfb9 --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/tools/linux/md2core/minidump_memory_range.h @@ -0,0 +1,89 @@ +// Copyright (c) 2011, 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. + +// minidump_memory_range.h: Define the google_breakpad::MinidumpMemoryRange +// class, which adds methods for handling minidump specific data structures +// on top of google_breakpad::MemoryRange. See common/memory_range.h for +// more details on MemoryRange. + +#ifndef TOOLS_LINUX_MD2CORE_MINIDUMP_MEMORY_RANGE_H_ +#define TOOLS_LINUX_MD2CORE_MINIDUMP_MEMORY_RANGE_H_ + +#include <string> + +#include "common/memory_range.h" +#include "google_breakpad/common/minidump_format.h" + +namespace google_breakpad { + +// A derived class of MemoryRange with added methods for handling minidump +// specific data structures. To avoid virtual functions, it is not designed +// to be used polymorphically. +class MinidumpMemoryRange : public MemoryRange { + public: + MinidumpMemoryRange() {} + + MinidumpMemoryRange(const void* data, size_t length) + : MemoryRange(data, length) {} + + // Returns a subrange of |length| bytes at |offset| bytes of this memory + // range, or an empty range if the subrange is out of bounds. + // This methods overrides the base implemementation in order to return + // an instance of MinidumpMemoryRange instead of MemoryRange. + MinidumpMemoryRange Subrange(size_t sub_offset, size_t sub_length) const { + if (Covers(sub_offset, sub_length)) + return MinidumpMemoryRange(data() + sub_offset, sub_length); + return MinidumpMemoryRange(); + } + + // Returns a subrange that covers the offset and length specified by + // |location|, or an empty range if the subrange is out of bounds. + MinidumpMemoryRange Subrange(const MDLocationDescriptor& location) const { + return MinidumpMemoryRange::Subrange(location.rva, location.data_size); + } + + // Gets a STL string from a MDString at |sub_offset| bytes of this memory + // range. This method only works correctly for ASCII characters and does + // not convert between UTF-16 and UTF-8. + const std::string GetAsciiMDString(size_t sub_offset) const { + std::string str; + const MDString* md_str = GetData<MDString>(sub_offset); + if (md_str) { + const uint16_t* buffer = &md_str->buffer[0]; + for (uint32_t i = 0; i < md_str->length && buffer[i]; ++i) { + str.push_back(buffer[i]); + } + } + return str; + } +}; + +} // namespace google_breakpad + +#endif // TOOLS_LINUX_MD2CORE_MINIDUMP_MEMORY_RANGE_H_ |