From 0e348e5ed66aabd0cd5c0c75932f245bd1385b3b Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Fri, 17 Dec 2021 14:32:30 -0800 Subject: [PATCH] libbpf-tools: update statsnoop for libbpf 1.0 Switch to libbpf 1.0 mode and adapt libbpf API usage accordingly. Signed-off-by: Andrii Nakryiko --- libbpf-tools/statsnoop.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/libbpf-tools/statsnoop.c b/libbpf-tools/statsnoop.c index 5853997f..2c0b35de 100644 --- a/libbpf-tools/statsnoop.c +++ b/libbpf-tools/statsnoop.c @@ -115,7 +115,6 @@ int main(int argc, char **argv) .parser = parse_arg, .doc = argp_program_doc, }; - struct perf_buffer_opts pb_opts; struct perf_buffer *pb = NULL; struct statsnoop_bpf *obj; int err; @@ -124,11 +123,7 @@ int main(int argc, char **argv) if (err) return err; - err = bump_memlock_rlimit(); - if (err) { - warn("failed to increase rlimit: %d\n", err); - return 1; - } + libbpf_set_strict_mode(LIBBPF_STRICT_ALL); obj = statsnoop_bpf__open(); if (!obj) { @@ -151,12 +146,10 @@ int main(int argc, char **argv) goto cleanup; } - pb_opts.sample_cb = handle_event; - pb_opts.lost_cb = handle_lost_events; pb = perf_buffer__new(bpf_map__fd(obj->maps.events), PERF_BUFFER_PAGES, - &pb_opts); - err = libbpf_get_error(pb); - if (err) { + handle_event, handle_lost_events, NULL, NULL); + if (!pb) { + err = -errno; warn("failed to open perf buffer: %d\n", err); goto cleanup; } @@ -174,8 +167,8 @@ int main(int argc, char **argv) while (!exiting) { err = perf_buffer__poll(pb, PERF_POLL_TIMEOUT_MS); - if (err < 0 && errno != EINTR) { - warn("error polling perf buffer: %s\n", strerror(errno)); + if (err < 0 && err != -EINTR) { + warn("error polling perf buffer: %s\n", strerror(-err)); goto cleanup; } /* reset err to return 0 if exiting */ -- 2.34.1