diff options
| author | Ian Rogers <irogers@google.com> | 2025-06-07 09:12:37 +0300 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-06-25 22:37:35 +0300 |
| commit | 4d2eefd7fb91482f1327f28f14112201e0b45dff (patch) | |
| tree | 98f5ccf17acc9e480e0908a463f1cff0e35727e4 | |
| parent | 57cbd56e2efe26483be2d4e7f62a7d9d816b54f1 (diff) | |
| download | linux-4d2eefd7fb91482f1327f28f14112201e0b45dff.tar.xz | |
perf header: Display message if BPF/BTF info is empty
The perf.data file may contain a bpf_prog_info or bpf_btf feature. If
the contents of these are empty then nothing is displayed. Rather than
display nothing and not account for the file space, display an empty
message.
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rw-r--r-- | tools/perf/util/header.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 3f1b78810059..a9538bb1004d 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1814,6 +1814,9 @@ static void print_bpf_prog_info(struct feat_fd *ff, FILE *fp) root = &env->bpf_progs.infos; next = rb_first(root); + if (!next) + printf("# bpf_prog_info empty\n"); + while (next) { struct bpf_prog_info_node *node; @@ -1838,6 +1841,9 @@ static void print_bpf_btf(struct feat_fd *ff, FILE *fp) root = &env->bpf_progs.btfs; next = rb_first(root); + if (!next) + printf("# btf info empty\n"); + while (next) { struct btf_node *node; |