commit | 6dea75659134018d0796e7c923b62db03fcc6cf2 | [log] [tgz] |
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author | Derek Bruening <bruening@google.com> | Thu Oct 22 17:24:05 2020 |
committer | GitHub <noreply@github.com> | Thu Oct 22 17:24:05 2020 |
tree | b44d7b5c87969dde493c3a699bacba5e206fe888 | |
parent | d2cfc0a0080f1d01863b3ad91e0a8ca44edd20ad [diff] |
i#4159 marker overflow: Use filter flag for 1-instr blocks (#4494) Extends PR #4236 to cover 1-instruction blocks in filtered traces, and not just 0-instruction blocks, using the top-level filter type flag. This avoids filling the buffer up with markers using the escape back to the main loop from PR #4236. Tested on a proprietary app where drcachesim with filtering hits the assert added in PR #4236. This change fixes it. For a local test: it may be tricky to arrange a live trace to have enough markers in a row; maybe a synthetic trace. For now just going with the manual proprietary test run. Issue: #4159
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.
Tools built on DynamoRIO and provided in our release package include:
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.
DynamoRIO is available free of charge as a binary package for both Windows and Linux. DynamoRIO's source code is available under a BSD license.
Use the discussion list to ask questions.
To report a bug, use the issue tracker.
See also the DynamoRIO home page: http://dynamorio.org/