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| author | Wiktor Garbacz <wiktorg@google.com> | 2022-10-12 16:36:37 -0700 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2022-10-12 16:46:32 -0700 |
| commit | 39db491957dcf095936d81bed89c2b4edae2a1e7 (patch) | |
| tree | ded94e64827762ea71d2ae100dee199df0f4acea /flang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 24989646a5216cc6f8c6d336a17e7cb2f5c60454 (diff) | |
| download | llvm-39db491957dcf095936d81bed89c2b4edae2a1e7.zip llvm-39db491957dcf095936d81bed89c2b4edae2a1e7.tar.gz llvm-39db491957dcf095936d81bed89c2b4edae2a1e7.tar.bz2 | |
[LeakSanitizer] Capture calling thread SP early to avoid false negatives.
As shown in https://github.com/llvm/llvm-project/issues/42932 dead
pointers might be overlapped by a new stack frame inside CheckForLeaks,
which does not use bytes with pointers. This leads to false negatives.
It's not a full solution for the problem as it does not solve
"overlapping" new/old frames for frames below the CheckForLeaks and in
other threads. It should improve leaks found in direct callers of
__lsan_do_leak_check.
Differential Revision: https://reviews.llvm.org/D130237
Diffstat (limited to 'flang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions