commit | f9f95d9c66b0dfe6d03428dac968ab0f4360fc85 | [log] [tgz] |
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author | Sotiris Apostolakis <apostolakis@google.com> | Wed May 05 03:02:36 2021 |
committer | GitHub <noreply@github.com> | Wed May 05 03:02:36 2021 |
tree | f37968cd12166a205bef6028bf969dd4a4953b7b | |
parent | 05ce879eec78979a185c2aaf267a2ffd01339fc9 [diff] |
Add comment about recent CVE related to FPU state on x86 (#4895) Adds a comment that reports a relatively recent security vulnerability that forces eager saving and restoration of FPU state for every task/context switch. These changes might make the execution of an xmm-related inst in signal_arch_init unnecessary. Yet, it does not remove this inst execution, given that older kernels will not have this fix and since eager FPU state save/restore mitigates transparency concerns (this instruction execution essentially will have minimum (if any) visible effect on recent kernels).
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.
DynamoRIO is the basis for some well-known external tools:
Tools built on DynamoRIO and available in the 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 primarily 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/