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author | James Clark <james.clark@arm.com> | 2022-03-07 20:19:15 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-03-07 20:51:19 +0300 |
commit | 66fd6c9d6972eeeaeed2eed7d2a225f9c4fb09a9 (patch) | |
tree | a4b704a72e134d5ed56ba3e9f2d6ef79a2e76e96 /tools/perf/util | |
parent | 8f431a28696d27e3370ebd1a5fd1681a8c773a8e (diff) | |
download | linux-66fd6c9d6972eeeaeed2eed7d2a225f9c4fb09a9.tar.xz |
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 <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220307171917.2555829-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r-- | tools/perf/util/session.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index f54282d5c648..3b8dfe603e50 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1159,14 +1159,15 @@ static void branch_stack__printf(struct perf_sample *sample, bool callstack) struct branch_entry *e = &entries[i]; if (!callstack) { - printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n", + printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x %s\n", i, e->from, e->to, (unsigned short)e->flags.cycles, e->flags.mispred ? "M" : " ", e->flags.predicted ? "P" : " ", e->flags.abort ? "A" : " ", e->flags.in_tx ? "T" : " ", - (unsigned)e->flags.reserved); + (unsigned)e->flags.reserved, + e->flags.type ? branch_type_name(e->flags.type) : ""); } else { printf("..... %2"PRIu64": %016" PRIx64 "\n", i, i > 0 ? e->from : e->to); |