Namhyung Kim af894feb32 perf trace: Handle task exit in BPF syscall summary ...

Some system calls never return because it'd terminate the calling
thread.  Let's hook the task exit path and update the duration of the
last syscall.

Before:
  $ sudo perf trace -as --bpf-summary -- true |& grep exit
  (nothing)

After:
  $ sudo perf trace -as --bpf-summary -- true |& grep exit
     exit_group             1      0     0.004     0.004     0.004     0.004      0.00%

Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Howard Chu <howardchu95@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

2026-02-26 10:49:00 -08:00

..

vmlinux

perf lock contention: Symbolize zone->lock using BTF

2025-04-29 12:23:53 -03:00

.gitignore

…

augmented_raw_syscalls.bpf.c

perf trace: Increase syscall handler map size to 1024

2025-10-31 12:29:44 -07:00

bench_uprobe.bpf.c

…

bperf_cgroup.bpf.c

perf stat: Add/fix bperf cgroup max events workarounds

2025-10-25 16:44:21 -07:00

bperf_cgroup.h

perf stat: Add/fix bperf cgroup max events workarounds

2025-10-25 16:44:21 -07:00

bperf_follower.bpf.c

perf stat: Support inherit events during fork() for bperf

2024-11-01 23:31:08 -07:00

bperf_leader.bpf.c

…

bperf_u.h

perf stat: Support inherit events during fork() for bperf

2024-11-01 23:31:08 -07:00

bpf_prog_profiler.bpf.c

…

func_latency.bpf.c

perf ftrace latency: Add -e option to measure time between two events

2025-07-14 22:51:58 -07:00

kwork_top.bpf.c

perf: Completely remove possibility to override MAX_NR_CPUS

2025-09-12 10:52:22 -03:00

kwork_trace.bpf.c

perf kwork: Remove unreachable judgments

2025-03-18 16:55:30 -07:00

lock_contention.bpf.c

perf lock contention: Add -J/--inject-delay option

2025-05-09 14:32:15 -03:00

lock_data.h

perf lock contention: Symbolize zone->lock using BTF

2025-04-29 12:23:53 -03:00

off_cpu.bpf.c

perf record --off-cpu: Add --off-cpu-thresh option

2025-05-05 21:51:54 -03:00

perf_version.h

perf test: add test for BPF metadata collection

2025-06-20 14:55:24 -07:00

sample_filter.bpf.c

perf bpf: Use __builtin_preserve_field_info for GCC compatibility

2025-10-02 14:57:07 -03:00

sample-filter.h

…

syscall_summary.bpf.c

perf trace: Handle task exit in BPF syscall summary

2026-02-26 10:49:00 -08:00

syscall_summary.h

perf trace: Support --summary-mode=cgroup

2025-05-13 18:20:46 -03:00