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| author | Kamil Rytarowski <n54@gmx.com> | 2019-09-21 07:30:42 +0000 |
|---|---|---|
| committer | Kamil Rytarowski <n54@gmx.com> | 2019-09-21 07:30:42 +0000 |
| commit | 8827047551570b7ed7088765c3de2a8cce6823b8 (patch) | |
| tree | 6bb8c27b32fb69dde6e171cbc6c0c2f6311c6ae5 /llvm/lib/CodeGen/ModuloSchedule.cpp | |
| parent | 04682939eb7e5ff06ec7e50cbe205b5c0069285f (diff) | |
| download | llvm-8827047551570b7ed7088765c3de2a8cce6823b8.zip llvm-8827047551570b7ed7088765c3de2a8cce6823b8.tar.gz llvm-8827047551570b7ed7088765c3de2a8cce6823b8.tar.bz2 | |
Stop tracking atexit/__cxa_atexit/pthread_atfork allocations in LSan/NetBSD
Summary:
The atexit(3) and __cxa_atexit() calls allocate internally memory and free on exit,
after executing all callback. This causes false positives as DoLeakCheck() is called
from the atexit handler. In the LSan/ASan tests there are strict checks triggering
false positives here.
Intercept all atexit(3) and __cxa_atexit() calls and disable LSan when calling the
real functions.
Stop tracing allocations in pthread_atfork(3) funtions, as there are performed
internal allocations that are not freed for the time of running StopTheWorld()
code. This avoids false-positives.
The same changes have to be replicated in the ASan and LSan runtime.
Non-NetBSD OSs are not tested and this code is restricted to NetBSD only.
Reviewers: dvyukov, joerg, mgorny, vitalybuka, eugenis
Reviewed By: vitalybuka
Subscribers: jfb, llvm-commits, #sanitizers
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D67331
llvm-svn: 372459
Diffstat (limited to 'llvm/lib/CodeGen/ModuloSchedule.cpp')
0 files changed, 0 insertions, 0 deletions