Diffusion FreeBSD src repository 930a7c2ac67e

compiler-rt: re-exec with ASLR disabled when necessary
930a7c2ac67e
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Description

compiler-rt: re-exec with ASLR disabled when necessary

Some sanitizers (at least msan) currently require ASLR to be disabled.
When we detect that ASLR is enabled, re-exec with it disabled rather
than exiting with an error. See LLVM GitHub issue 53256 for more
detail: https://github.com/llvm/llvm-project/issues/53256

No objection: dim
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33934

Details

Provenance

Authored on Jan 16 2022, 7:22 PM

Differential Revision

D33934: compiler-rt: re-exec with ASLR disabled when necessary

Parents

rG96fe7c8ab0f6: compiler-rt: support ReExec() on FreeBSD

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Event Timeline

emaste committed rG930a7c2ac67e: compiler-rt: re-exec with ASLR disabled when necessary (authored by emaste).Feb 4 2022, 4:20 PM

emaste added an edge: D33934: compiler-rt: re-exec with ASLR disabled when necessary.

emaste mentioned this in rGae6cb173d452: compiler-rt: re-exec with ASLR disabled when necessary.Feb 18 2022, 1:51 AM

dim mentioned this in rG4c9a0adad182: compiler-rt: avoid segfaults when re-exec'ing with ASLR.Nov 22 2023, 6:30 PM

dim mentioned this in rG1e4798e9677f: compiler-rt: avoid segfaults when re-exec'ing with ASLR.Nov 25 2023, 9:06 AM

dim mentioned this in rG7c25a53a2cb9: compiler-rt: avoid segfaults when re-exec'ing with ASLR.

gordon mentioned this in rG78b4c762b20b: compiler-rt: avoid segfaults when re-exec'ing with ASLR.Dec 1 2023, 12:38 AM

emaste mentioned this in rG6d94fc2b0db9: compiler-rt: avoid segfaults when re-exec'ing with ASLR.Dec 5 2023, 6:22 PM

dim mentioned this in D44030: llvm: implement the bits missing for LSan on FreeBSD.Feb 25 2024, 7:39 PM

Changes (1)

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contrib/

llvm-project/

compiler-rt/

lib/

sanitizer_common/

sanitizer_linux.cpp

rG930a7c2ac67e

contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp

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