commit | f254e955d1ddf916dfc49ae58929aac3f3ff4caa | [log] [tgz] |
---|---|---|
author | John F.X. Galea <john.galea@stx.ox.ac.uk> | Fri May 08 21:24:31 2020 |
committer | GitHub <noreply@github.com> | Fri May 08 21:24:31 2020 |
tree | be3d1672120a2bf99345a50302a0796dbe2f3bce | |
parent | 821942761f0ab815b1fb463fa7ebe2f173f64a6f [diff] |
i#4280: Adds a sample highlighting opcode instrumentation. (#4284) Adds a new sample client to show how drmgr's opcode instrumentation can be used to count the number of executions of an instruction (with a specific opcode). The opcode number is given by the user as a parameter (the client uses droptions for parsing). In addition, the PR also includes a bug fix in drmgr. In particular, drmgr was confusing the default priority as a different priority when used again for another event registration. The bug was only triggered if cblist_insert_other() is used - this function is only called for opcode registration at the moment so the bug's severity is low.
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/