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fdc3441f2d
This collects metadata for any BPF programs that were loaded during a "perf record" run, and emits it at the end of the run. Signed-off-by: Blake Jones <blakejones@google.com> Link: https://lore.kernel.org/r/20250612194939.162730-4-blakejones@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_BPF_EVENT_H
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#define __PERF_BPF_EVENT_H
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#include <linux/compiler.h>
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#include <linux/rbtree.h>
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#include <api/fd/array.h>
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#include <stdio.h>
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struct bpf_prog_info;
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struct machine;
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union perf_event;
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struct perf_env;
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struct perf_sample;
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struct perf_session;
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struct record_opts;
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struct evlist;
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struct target;
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struct bpf_metadata {
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union perf_event *event;
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char **prog_names;
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__u64 nr_prog_names;
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};
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struct bpf_prog_info_node {
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struct perf_bpil *info_linear;
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struct bpf_metadata *metadata;
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struct rb_node rb_node;
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};
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struct btf_node {
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struct rb_node rb_node;
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u32 id;
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u32 data_size;
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char data[];
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};
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#ifdef HAVE_LIBBPF_SUPPORT
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int machine__process_bpf(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int evlist__add_bpf_sb_event(struct evlist *evlist, struct perf_env *env);
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void __bpf_event__print_bpf_prog_info(struct bpf_prog_info *info,
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struct perf_env *env,
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FILE *fp);
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void bpf_metadata_free(struct bpf_metadata *metadata);
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#else
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static inline int machine__process_bpf(struct machine *machine __maybe_unused,
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union perf_event *event __maybe_unused,
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struct perf_sample *sample __maybe_unused)
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{
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return 0;
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}
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static inline int evlist__add_bpf_sb_event(struct evlist *evlist __maybe_unused,
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struct perf_env *env __maybe_unused)
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{
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return 0;
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}
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static inline void __bpf_event__print_bpf_prog_info(struct bpf_prog_info *info __maybe_unused,
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struct perf_env *env __maybe_unused,
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FILE *fp __maybe_unused)
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{
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}
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static inline void bpf_metadata_free(struct bpf_metadata *metadata __maybe_unused)
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{
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}
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#endif // HAVE_LIBBPF_SUPPORT
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#endif
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