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| author | Joe Lawrence <joe.lawrence@redhat.com> | 2019-01-22 10:57:22 -0500 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-01-31 16:43:38 +1100 |
| commit | 18be37603de81674e41a0b0282326a0debc1696e (patch) | |
| tree | cc3e5a0d4b83b5bc0517b5c2b6dcda029931d797 /tools/perf/scripts/python | |
| parent | powerpc/64s: Make reliable stacktrace dependency clearer (diff) | |
| download | linux-18be37603de81674e41a0b0282326a0debc1696e.tar.gz linux-18be37603de81674e41a0b0282326a0debc1696e.zip | |
powerpc/livepatch: relax reliable stack tracer checks for first-frame
The bottom-most stack frame (the first to be unwound) may be largely
uninitialized, for the "Power Architecture 64-Bit ELF V2 ABI" only
requires its backchain pointer to be set.
The reliable stack tracer should be careful when verifying this frame:
skip checks on STACK_FRAME_LR_SAVE and STACK_FRAME_MARKER offsets that
may contain uninitialized residual data.
Fixes: df78d3f61480 ("powerpc/livepatch: Implement reliable stack tracing for the consistency model")
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions