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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-11-30 08:56:55 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-11-30 08:56:55 -0300 |
| commit | 1f195e557d137be004894d2016357013331ec3d0 (patch) | |
| tree | ac74e64b08349fc569e9db2edcf32c4bf84b0c9b /tools/perf/arch/x86/tests | |
| parent | perf build-id: Add build_id_cache__add function (diff) | |
| parent | Linux 5.10-rc6 (diff) | |
| download | linux-dev-1f195e557d137be004894d2016357013331ec3d0.tar.xz linux-dev-1f195e557d137be004894d2016357013331ec3d0.zip | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/arch/x86/tests')
| -rw-r--r-- | tools/perf/arch/x86/tests/dwarf-unwind.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c index 4e40402a4f81..478078fb0f22 100644 --- a/tools/perf/arch/x86/tests/dwarf-unwind.c +++ b/tools/perf/arch/x86/tests/dwarf-unwind.c @@ -38,6 +38,13 @@ static int sample_ustack(struct perf_sample *sample, stack_size = stack_size > STACK_SIZE ? STACK_SIZE : stack_size; memcpy(buf, (void *) sp, stack_size); +#ifdef MEMORY_SANITIZER + /* + * Copying the stack may copy msan poison, avoid false positives in the + * unwinder by removing the poison here. + */ + __msan_unpoison(buf, stack_size); +#endif stack->data = (char *) buf; stack->size = stack_size; return 0; |