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chromium / external / github.com / DynamoRIO / dynamorio / refs/tags/cronbuild-9.0.19328
commiteb70ae0c4469ff0b12730bce7c0094166c0ffec2[log] [tgz]
authorAbhinav Anil Sharma <sharmaabhinav@google.com>Fri Dec 02 22:03:13 2022
committerGitHub <noreply@github.com>Fri Dec 02 22:03:13 2022
treeab0a6010edeaeebf45a62da0785b5dd2ea9b649f
parent9b67bef1a99d028682dfe436badcd6de782a5582 [diff]
i#5675: Fix data race in record_filter. (#5772)

Fixes a race in updating input_entry_count_ and output_entry_count_
in parallel_shard_exit in the record_filter analyzer.

Moves aggregation logic to print_results instead. Like other analyzers,
we now keep track of all shard data pointers and free them in the
destructor instead. We destroy the writer object in parallel_shard_exit
itself though, for symmetry with how it's created (in parallel_shard_stream_init)
and so that users don't have to destroy the record_filter_t object itself
for output files to be written out.

Issue: #5675
3 files changed
tree: ab0a6010edeaeebf45a62da0785b5dd2ea9b649f
  1. .github/
  2. api/
  3. clients/
  4. core/
  5. ext/
  6. libutil/
  7. make/
  8. suite/
  9. third_party/
  10. tools/
  11. .clang-format
  12. .gitignore
  13. .gitmodules
  14. ACKNOWLEDGEMENTS
  15. CMakeLists.txt
  16. CONTRIBUTING.md
  17. CTestConfig.cmake
  18. License.txt
  19. README
  20. README.md
README.md

DynamoRIO

DynamoRIO logo

About DynamoRIO

DynamoRIO is a runtime code manipulation system that supports code transformations on any part of a program, while it executes. DynamoRIO exports an interface for building dynamic tools for a wide variety of uses: program analysis and understanding, profiling, instrumentation, optimization, translation, etc. Unlike many dynamic tool systems, DynamoRIO is not limited to insertion of callouts/trampolines and allows arbitrary modifications to application instructions via a powerful IA-32/AMD64/ARM/AArch64 instruction manipulation library. DynamoRIO provides efficient, transparent, and comprehensive manipulation of unmodified applications running on stock operating systems (Windows, Linux, or Android) and commodity IA-32, AMD64, ARM, and AArch64 hardware. Mac OSX support is in progress.

Existing DynamoRIO-based tools

DynamoRIO is the basis for some well-known external tools:

Tools built on DynamoRIO and available in the release package include:

  • The memory debugging tool Dr. Memory
  • The tracing and analysis framework drmemtrace with multiple tools that operate on both online (with multi-process support) and offline instruction and memory address traces:
  • The legacy processor emulator drcpusim
  • The “strace for Windows” tool drstrace
  • The code coverage tool drcov
  • The library tracing tool drltrace
  • The memory address tracing tool memtrace (drmemtrace's offline traces are faster with more surrounding infrastructure, but this is a simpler starting point for customized memory address tracing)
  • The memory value tracing tool memval
  • The instruction tracing tool instrace (drmemtrace's offline traces are faster with more surrounding infrastructure, but this is a simpler starting point for customized instruction tracing)
  • The basic block tracing tool bbbuf
  • The instruction counting tool inscount
  • The dynamic fuzz testing tool Dr. Fuzz
  • The disassembly tool drdisas
  • And more, including opcode counts, branch instrumentation, etc.: see \ref API_samples.

Building your own custom tools

DynamoRIO‘s powerful API abstracts away the details of the underlying infrastructure and allows the tool builder to concentrate on analyzing or modifying the application’s runtime code stream. API documentation is included in the release package and can also be browsed online. Slides from our past tutorials are also available.

Downloading DynamoRIO

DynamoRIO is available free of charge as a binary package for both Windows and Linux. DynamoRIO's source code is available primarily under a BSD license.

Obtaining Help

Use the discussion list to ask questions.

To report a bug, use the issue tracker.

See also the DynamoRIO home page: http://dynamorio.org/