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| author | Thomas Richter <tmricht@linux.ibm.com> | 2025-08-05 12:03:49 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-09-19 18:14:30 +0300 |
| commit | 817af72c05c8adfc5b5c8c772e237a2ac85b25f5 (patch) | |
| tree | 9e2c5b48f0d160fa5744eaf92a87cc9232533941 /tools/perf/Documentation | |
| parent | c0e885e92534ae83ff2721332c17022a48d769c7 (diff) | |
| download | linux-817af72c05c8adfc5b5c8c772e237a2ac85b25f5.tar.xz | |
perf tools: Update header documentation on BPF_PROG_INFO
Update the perf.data file format description on header section
HEADER_BPF_PROG_INFO.
The information is taken from process_bpf_prog_info() and
write_bpf_prog_info() from file util/header.c.
Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf.data-file-format.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt index cd95ba09f727..c9d4dec65344 100644 --- a/tools/perf/Documentation/perf.data-file-format.txt +++ b/tools/perf/Documentation/perf.data-file-format.txt @@ -348,6 +348,16 @@ to special needs. struct perf_bpil, which contains detailed information about a BPF program, including type, id, tag, jited/xlated instructions, etc. +The format of data in HEADER_BPF_PROG_INFO is as follows: + u32 count + + struct perf_bpil { + u32 info_len; /* size of struct bpf_prog_info, when the tool is compiled */ + u32 data_len; /* total bytes allocated for data, round up to 8 bytes */ + u64 arrays; /* which arrays are included in data */ + struct bpf_prog_info info; + u8 data[]; + }[count]; HEADER_BPF_BTF = 26, |