160 lines
3.9 KiB
C
160 lines
3.9 KiB
C
#ifndef __PERF_HEADER_H
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#define __PERF_HEADER_H
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#include <linux/perf_event.h>
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#include <sys/types.h>
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#include <stdbool.h>
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#include "types.h"
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#include "event.h"
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#include <linux/bitmap.h>
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enum {
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HEADER_RESERVED = 0, /* always cleared */
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HEADER_FIRST_FEATURE = 1,
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HEADER_TRACING_DATA = 1,
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HEADER_BUILD_ID,
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HEADER_HOSTNAME,
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HEADER_OSRELEASE,
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HEADER_VERSION,
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HEADER_ARCH,
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HEADER_NRCPUS,
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HEADER_CPUDESC,
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HEADER_CPUID,
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HEADER_TOTAL_MEM,
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HEADER_CMDLINE,
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HEADER_EVENT_DESC,
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HEADER_CPU_TOPOLOGY,
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HEADER_NUMA_TOPOLOGY,
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HEADER_BRANCH_STACK,
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HEADER_PMU_MAPPINGS,
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HEADER_GROUP_DESC,
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HEADER_LAST_FEATURE,
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HEADER_FEAT_BITS = 256,
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};
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enum perf_header_version {
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PERF_HEADER_VERSION_1,
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PERF_HEADER_VERSION_2,
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};
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struct perf_file_section {
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u64 offset;
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u64 size;
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};
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struct perf_file_header {
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u64 magic;
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u64 size;
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u64 attr_size;
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struct perf_file_section attrs;
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struct perf_file_section data;
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/* event_types is ignored */
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struct perf_file_section event_types;
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DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
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};
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struct perf_pipe_file_header {
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u64 magic;
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u64 size;
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};
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struct perf_header;
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int perf_file_header__read(struct perf_file_header *header,
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struct perf_header *ph, int fd);
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struct perf_session_env {
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char *hostname;
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char *os_release;
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char *version;
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char *arch;
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int nr_cpus_online;
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int nr_cpus_avail;
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char *cpu_desc;
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char *cpuid;
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unsigned long long total_mem;
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int nr_cmdline;
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int nr_sibling_cores;
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int nr_sibling_threads;
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int nr_numa_nodes;
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int nr_pmu_mappings;
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int nr_groups;
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char *cmdline;
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char *sibling_cores;
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char *sibling_threads;
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char *numa_nodes;
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char *pmu_mappings;
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};
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struct perf_header {
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enum perf_header_version version;
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bool needs_swap;
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u64 data_offset;
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u64 data_size;
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u64 feat_offset;
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DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
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struct perf_session_env env;
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};
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struct perf_evlist;
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struct perf_session;
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int perf_session__read_header(struct perf_session *session);
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int perf_session__write_header(struct perf_session *session,
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struct perf_evlist *evlist,
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int fd, bool at_exit);
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int perf_header__write_pipe(int fd);
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void perf_header__set_feat(struct perf_header *header, int feat);
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void perf_header__clear_feat(struct perf_header *header, int feat);
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bool perf_header__has_feat(const struct perf_header *header, int feat);
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int perf_header__set_cmdline(int argc, const char **argv);
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int perf_header__process_sections(struct perf_header *header, int fd,
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void *data,
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int (*process)(struct perf_file_section *section,
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struct perf_header *ph,
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int feat, int fd, void *data));
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int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
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int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
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const char *name, bool is_kallsyms, bool is_vdso);
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int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
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int perf_event__synthesize_attr(struct perf_tool *tool,
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struct perf_event_attr *attr, u32 ids, u64 *id,
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perf_event__handler_t process);
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int perf_event__synthesize_attrs(struct perf_tool *tool,
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struct perf_session *session,
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perf_event__handler_t process);
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int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
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struct perf_evlist **pevlist);
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int perf_event__synthesize_tracing_data(struct perf_tool *tool,
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int fd, struct perf_evlist *evlist,
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perf_event__handler_t process);
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int perf_event__process_tracing_data(struct perf_tool *tool,
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union perf_event *event,
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struct perf_session *session);
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int perf_event__synthesize_build_id(struct perf_tool *tool,
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struct dso *pos, u16 misc,
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perf_event__handler_t process,
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struct machine *machine);
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int perf_event__process_build_id(struct perf_tool *tool,
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union perf_event *event,
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struct perf_session *session);
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bool is_perf_magic(u64 magic);
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/*
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* arch specific callback
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*/
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int get_cpuid(char *buffer, size_t sz);
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#endif /* __PERF_HEADER_H */
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