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chromium / external / github.com / DynamoRIO / dynamorio / refs/tags/cronbuild-10.93.19902
commit2e1d96beca1561073eeab7a4e9a10e26eea6c1db[log] [tgz]
authorJack Gallagher <jack.gallagher@arm.com>Fri Jun 28 08:27:06 2024
committerGitHub <noreply@github.com>Fri Jun 28 08:27:06 2024
tree14ab6a9019494d0215c30b6ceb72ce96d0482fcf
parent1b5bb4222285a16f1e5812e63069c342f14aa186 [diff]
i#5623 AArch64: Improve PAUTH transparency (#6856)

Previously direct/indirect branches with pointer authentication would be
mangled to strip the pointer authentication code from the address using
an xpaci instruction.

This means that code that might fail when running natively (because the
pointer authentication doesn't pass) could succeed under DynamoRIO
because the pointer was not being authenticated.

This commit changes the mangling code to use auti* instructions to
authenticate the pointer instead, and adds tests to check that it
behaves correctly for all the branch and authenticate instructions.

Issue: #5623
Fixes: #5623
Co-authored-by: Phil Ramsey <phil.ramsey@arm.com>
13 files changed
tree: 14ab6a9019494d0215c30b6ceb72ce96d0482fcf
  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 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/