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| author | James Clark <[email protected]> | 2022-03-07 17:19:15 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2022-03-07 17:51:19 +0000 |
| commit | 66fd6c9d6972eeeaeed2eed7d2a225f9c4fb09a9 (patch) | |
| tree | a4b704a72e134d5ed56ba3e9f2d6ef79a2e76e96 /tools/testing/selftests/bpf/prog_tests/autoload.c | |
| parent | perf evsel: Add error message for unsupported branch stack cases (diff) | |
| download | kernel-66fd6c9d6972eeeaeed2eed7d2a225f9c4fb09a9.tar.gz kernel-66fd6c9d6972eeeaeed2eed7d2a225f9c4fb09a9.zip | |
perf session: Print branch stack entry type in --dump-raw-trace
This can help with debugging issues. It only prints when -j save_type
is used otherwise an empty string is printed.
Before the change:
101603801707130 0xa70 [0x630]: PERF_RECORD_SAMPLE(IP, 0x2): 1108/1108: 0xffff9c1df24c period: 10694 addr: 0
... branch stack: nr:64
..... 0: 0000ffff9c26029c -> 0000ffff9c26f340 0 cycles P 0
..... 1: 0000ffff9c2601bc -> 0000ffff9c26f340 0 cycles P 0
After the change:
101603801707130 0xa70 [0x630]: PERF_RECORD_SAMPLE(IP, 0x2): 1108/1108: 0xffff9c1df24c period: 10694 addr: 0
... branch stack: nr:64
..... 0: 0000ffff9c26029c -> 0000ffff9c26f340 0 cycles P 0 CALL
..... 1: 0000ffff9c2601bc -> 0000ffff9c26f340 0 cycles P 0 IND_CALL
Signed-off-by: James Clark <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Anshuman Khandual <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions