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| author | Rohan McLure <rmclure@linux.ibm.com> | 2023-02-06 13:17:58 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-10 22:19:56 +1100 |
| commit | 2a7ce82dc46c591c9244057d89a6591c9639b9b9 (patch) | |
| tree | b974bee0b27aae9971095592dcbd58572c2728e9 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 2fb857bc9f9e106439017ed323f522cc785395bb (diff) | |
powerpc/kcsan: Exclude udelay to prevent recursive instrumentation
In order for KCSAN to increase its likelihood of observing a data race,
it sets a watchpoint on memory accesses and stalls, allowing for
detection of conflicting accesses by other kernel threads or interrupts.
Stalls are implemented by injecting a call to udelay in instrumented code.
To prevent recursive instrumentation, exclude udelay from being instrumented.
Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230206021801.105268-3-rmclure@linux.ibm.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions