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| author | Namhyung Kim <namhyung@kernel.org> | 2025-11-20 15:48:02 -0800 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-12-02 21:59:14 -0800 |
| commit | 25a9dd56cf84300f0e08609aeef1418bcf0f097d (patch) | |
| tree | d415feba0ba504696f6523e5ed65d1bfc5390760 /tools/perf/util | |
| parent | 27ddc1d7a6b79ae76f5c07af293fde966da8221b (diff) | |
perf script: Display PERF_RECORD_CALLCHAIN_DEFERRED
Handle the deferred callchains in the script output.
$ perf script
...
pwd 2312 121.163435: 249113 cpu/cycles/P:
ffffffff845b78d8 __build_id_parse.isra.0+0x218 ([kernel.kallsyms])
ffffffff83bb5bf6 perf_event_mmap+0x2e6 ([kernel.kallsyms])
ffffffff83c31959 mprotect_fixup+0x1e9 ([kernel.kallsyms])
ffffffff83c31dc5 do_mprotect_pkey+0x2b5 ([kernel.kallsyms])
ffffffff83c3206f __x64_sys_mprotect+0x1f ([kernel.kallsyms])
ffffffff845e6692 do_syscall_64+0x62 ([kernel.kallsyms])
ffffffff8360012f entry_SYSCALL_64_after_hwframe+0x76 ([kernel.kallsyms])
b00000006 (cookie) ([unknown])
pwd 2312 121.163447: DEFERRED CALLCHAIN [cookie: b00000006]
7f18fe337fa7 mprotect+0x7 (/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2)
7f18fe330e0f _dl_sysdep_start+0x7f (/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2)
7f18fe331448 _dl_start_user+0x0 (/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2)
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/evsel_fprintf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/util/evsel_fprintf.c b/tools/perf/util/evsel_fprintf.c index 103984b29b1e..10f1a03c2860 100644 --- a/tools/perf/util/evsel_fprintf.c +++ b/tools/perf/util/evsel_fprintf.c @@ -168,7 +168,10 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, node_al.addr = addr; node_al.map = map__get(map); - if (print_symoffset) { + if (sample->deferred_callchain && + sample->deferred_cookie == node->ip) { + printed += fprintf(fp, "(cookie)"); + } else if (print_symoffset) { printed += __symbol__fprintf_symname_offs(sym, &node_al, print_unknown_as_addr, true, fp); |