Add the benchmark testcase "kprobe-multi-all", which will hook all the
kernel functions during the testing.

This series is separated out from [1].

Link: https://lore.kernel.org/bpf/20250817024607.296117-1-dongml2@chinatelecom.cn/ (local) [1]
Menglong Dong (3):
  selftests/bpf: move get_ksyms and get_addrs to trace_helpers.c
  selftests/bpf: skip recursive functions for kprobe_multi
  selftests/bpf: add benchmark testing for kprobe-multi-all

 tools/testing/selftests/bpf/bench.c           |   4 +
 .../selftests/bpf/benchs/bench_trigger.c      |  54 ++++
 .../selftests/bpf/benchs/run_bench_trigger.sh |   4 +-
 .../bpf/prog_tests/kprobe_multi_test.c        | 220 +----------------
 .../selftests/bpf/progs/trigger_bench.c       |  12 +
 tools/testing/selftests/bpf/trace_helpers.c   | 233 ++++++++++++++++++
 tools/testing/selftests/bpf/trace_helpers.h   |   3 +
 7 files changed, 311 insertions(+), 219 deletions(-)

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2.50.1