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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h b/toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h new file mode 100644 index 000000000..a1d2fd6ed --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h @@ -0,0 +1,87 @@ +// Copyright (c) 2006, 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. +// +// file_id.h: Return a unique identifier for a file +// + +#ifndef COMMON_LINUX_FILE_ID_H__ +#define COMMON_LINUX_FILE_ID_H__ + +#include <limits.h> +#include <string> + +#include "common/linux/guid_creator.h" +#include "common/memory.h" + +namespace google_breakpad { + +// GNU binutils' ld defaults to 'sha1', which is 160 bits == 20 bytes, +// so this is enough to fit that, which most binaries will use. +// This is just a sensible default for auto_wasteful_vector so most +// callers can get away with stack allocation. +static const size_t kDefaultBuildIdSize = 20; + +class FileID { + public: + explicit FileID(const char* path); + ~FileID() {} + + // Load the identifier for the elf file path specified in the constructor into + // |identifier|. + // + // The current implementation will look for a .note.gnu.build-id + // section and use that as the file id, otherwise it falls back to + // XORing the first 4096 bytes of the .text section to generate an identifier. + bool ElfFileIdentifier(wasteful_vector<uint8_t>& identifier); + + // Load the identifier for the elf file mapped into memory at |base| into + // |identifier|. Return false if the identifier could not be created for this + // file. + static bool ElfFileIdentifierFromMappedFile( + const void* base, + wasteful_vector<uint8_t>& identifier); + + // Convert the |identifier| data to a string. The string will + // be formatted as a UUID in all uppercase without dashes. + // (e.g., 22F065BBFC9C49F780FE26A7CEBD7BCE). + static std::string ConvertIdentifierToUUIDString( + const wasteful_vector<uint8_t>& identifier); + + // Convert the entire |identifier| data to a hex string. + static std::string ConvertIdentifierToString( + const wasteful_vector<uint8_t>& identifier); + + private: + // Storage for the path specified + std::string path_; +}; + +} // namespace google_breakpad + +#endif // COMMON_LINUX_FILE_ID_H__ |