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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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d762ba020d
Add an option that allows all mmap or mmap2 events to be rewritten as mmap2 events with build IDs. This is similar to the existing -b/--build-ids and --buildid-all options except instead of adding a build_id event an existing mmap/mmap2 event is used as a template and a new mmap2 event synthesized from it. As mmap2 events are typical this avoids the insertion of build_id events. Add test coverage to the pipe test. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anne Macedo <retpolanne@posteo.net> Cc: Casey Chen <cachen@purestorage.com> Cc: Colin Ian King <colin.i.king@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sun Haiyong <sunhaiyong@loongson.cn> Link: https://lore.kernel.org/r/20240909203740.143492-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
145 lines
7.8 KiB
C
145 lines
7.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_SYNTHETIC_EVENTS_H
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#define __PERF_SYNTHETIC_EVENTS_H
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#include <stdbool.h>
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#include <sys/types.h> // pid_t
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <perf/cpumap.h>
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struct auxtrace_record;
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struct build_id;
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struct dso;
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struct evlist;
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struct evsel;
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struct machine;
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struct perf_counts_values;
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struct perf_cpu_map;
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struct perf_data;
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struct perf_event_attr;
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struct perf_event_mmap_page;
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struct perf_sample;
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struct perf_session;
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struct perf_stat_config;
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struct perf_thread_map;
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struct perf_tool;
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struct record_opts;
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struct target;
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union perf_event;
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enum perf_record_synth {
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PERF_SYNTH_TASK = 1 << 0,
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PERF_SYNTH_MMAP = 1 << 1,
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PERF_SYNTH_CGROUP = 1 << 2,
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/* last element */
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PERF_SYNTH_MAX = 1 << 3,
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};
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#define PERF_SYNTH_ALL (PERF_SYNTH_MAX - 1)
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int parse_synth_opt(char *str);
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typedef int (*perf_event__handler_t)(const struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct machine *machine);
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int perf_event__synthesize_attrs(const struct perf_tool *tool, struct evlist *evlist, perf_event__handler_t process);
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int perf_event__synthesize_attr(const struct perf_tool *tool, struct perf_event_attr *attr, u32 ids, u64 *id, perf_event__handler_t process);
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int perf_event__synthesize_build_id(const struct perf_tool *tool,
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struct perf_sample *sample,
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struct machine *machine,
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perf_event__handler_t process,
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const struct evsel *evsel,
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__u16 misc,
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const struct build_id *bid,
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const char *filename);
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int perf_event__synthesize_mmap2_build_id(const struct perf_tool *tool,
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struct perf_sample *sample,
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struct machine *machine,
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perf_event__handler_t process,
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const struct evsel *evsel,
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__u16 misc,
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__u32 pid, __u32 tid,
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__u64 start, __u64 len, __u64 pgoff,
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const struct build_id *bid,
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__u32 prot, __u32 flags,
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const char *filename);
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int perf_event__synthesize_cpu_map(const struct perf_tool *tool, const struct perf_cpu_map *cpus, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_event_update_cpus(const struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
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int perf_event__synthesize_event_update_name(const struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
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int perf_event__synthesize_event_update_scale(const struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
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int perf_event__synthesize_event_update_unit(const struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
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int perf_event__synthesize_extra_attr(const struct perf_tool *tool, struct evlist *evsel_list, perf_event__handler_t process, bool is_pipe);
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int perf_event__synthesize_extra_kmaps(const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_features(const struct perf_tool *tool, struct perf_session *session, struct evlist *evlist, perf_event__handler_t process);
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int perf_event__synthesize_id_index(const struct perf_tool *tool, perf_event__handler_t process, struct evlist *evlist, struct machine *machine);
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int __perf_event__synthesize_id_index(const struct perf_tool *tool, perf_event__handler_t process, struct evlist *evlist, struct machine *machine, size_t from);
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int perf_event__synthesize_id_sample(__u64 *array, u64 type, const struct perf_sample *sample);
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int perf_event__synthesize_kernel_mmap(const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_mmap_events(const struct perf_tool *tool, union perf_event *event, pid_t pid, pid_t tgid, perf_event__handler_t process, struct machine *machine, bool mmap_data);
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int perf_event__synthesize_modules(const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_namespaces(const struct perf_tool *tool, union perf_event *event, pid_t pid, pid_t tgid, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_cgroups(const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_sample(union perf_event *event, u64 type, u64 read_format, const struct perf_sample *sample);
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int perf_event__synthesize_stat_config(const struct perf_tool *tool, struct perf_stat_config *config, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_stat_events(struct perf_stat_config *config, const struct perf_tool *tool, struct evlist *evlist, perf_event__handler_t process, bool attrs);
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int perf_event__synthesize_stat_round(const struct perf_tool *tool, u64 time, u64 type, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_stat(const struct perf_tool *tool, struct perf_cpu cpu, u32 thread, u64 id, struct perf_counts_values *count, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_thread_map2(const struct perf_tool *tool, struct perf_thread_map *threads, perf_event__handler_t process, struct machine *machine);
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int perf_event__synthesize_thread_map(const struct perf_tool *tool, struct perf_thread_map *threads, perf_event__handler_t process, struct machine *machine, bool needs_mmap, bool mmap_data);
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int perf_event__synthesize_threads(const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine, bool needs_mmap, bool mmap_data, unsigned int nr_threads_synthesize);
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int perf_event__synthesize_tracing_data(const struct perf_tool *tool, int fd, struct evlist *evlist, perf_event__handler_t process);
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int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc, const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
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pid_t perf_event__synthesize_comm(const struct perf_tool *tool, union perf_event *event, pid_t pid, perf_event__handler_t process, struct machine *machine);
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int perf_tool__process_synth_event(const struct perf_tool *tool, union perf_event *event, struct machine *machine, perf_event__handler_t process);
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size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, u64 read_format);
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int __machine__synthesize_threads(struct machine *machine, const struct perf_tool *tool,
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struct target *target, struct perf_thread_map *threads,
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perf_event__handler_t process, bool needs_mmap, bool data_mmap,
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unsigned int nr_threads_synthesize);
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int machine__synthesize_threads(struct machine *machine, struct target *target,
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struct perf_thread_map *threads, bool needs_mmap, bool data_mmap,
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unsigned int nr_threads_synthesize);
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#ifdef HAVE_AUXTRACE_SUPPORT
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int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr, const struct perf_tool *tool,
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struct perf_session *session, perf_event__handler_t process);
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#else // HAVE_AUXTRACE_SUPPORT
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#include <errno.h>
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static inline int
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perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr __maybe_unused,
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const struct perf_tool *tool __maybe_unused,
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struct perf_session *session __maybe_unused,
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perf_event__handler_t process __maybe_unused)
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{
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return -EINVAL;
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}
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#endif // HAVE_AUXTRACE_SUPPORT
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#ifdef HAVE_LIBBPF_SUPPORT
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int perf_event__synthesize_bpf_events(struct perf_session *session, perf_event__handler_t process,
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struct machine *machine, struct record_opts *opts);
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#else // HAVE_LIBBPF_SUPPORT
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static inline int perf_event__synthesize_bpf_events(struct perf_session *session __maybe_unused,
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perf_event__handler_t process __maybe_unused,
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struct machine *machine __maybe_unused,
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struct record_opts *opts __maybe_unused)
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{
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return 0;
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}
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#endif // HAVE_LIBBPF_SUPPORT
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int perf_event__synthesize_for_pipe(const struct perf_tool *tool,
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struct perf_session *session,
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struct perf_data *data,
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perf_event__handler_t process);
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#endif // __PERF_SYNTHETIC_EVENTS_H
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