forked from Minki/linux
330aa675b4
This patch adds a new feature bit, namely, HEADER_BRANCH_STACK. When present, it indicates that sample records may contain branch stack. This could be useful to a viewer to switch to branch mode without having to parse all the samples or without a specific cmdline option. This will be used in a subsequent patch to enhance perf report with branch stacks. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: acme@redhat.com Cc: asharma@fb.com Cc: ravitillo@lbl.gov Cc: vweaver1@eecs.utk.edu Cc: khandual@linux.vnet.ibm.com Cc: dsahern@gmail.com Link: http://lkml.kernel.org/r/1331246868-19905-3-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
#ifndef __PERF_HEADER_H
|
|
#define __PERF_HEADER_H
|
|
|
|
#include "../../../include/linux/perf_event.h"
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
#include "types.h"
|
|
#include "event.h"
|
|
|
|
#include <linux/bitmap.h>
|
|
|
|
enum {
|
|
HEADER_RESERVED = 0, /* always cleared */
|
|
HEADER_FIRST_FEATURE = 1,
|
|
HEADER_TRACE_INFO = 1,
|
|
HEADER_BUILD_ID,
|
|
|
|
HEADER_HOSTNAME,
|
|
HEADER_OSRELEASE,
|
|
HEADER_VERSION,
|
|
HEADER_ARCH,
|
|
HEADER_NRCPUS,
|
|
HEADER_CPUDESC,
|
|
HEADER_CPUID,
|
|
HEADER_TOTAL_MEM,
|
|
HEADER_CMDLINE,
|
|
HEADER_EVENT_DESC,
|
|
HEADER_CPU_TOPOLOGY,
|
|
HEADER_NUMA_TOPOLOGY,
|
|
HEADER_BRANCH_STACK,
|
|
HEADER_LAST_FEATURE,
|
|
HEADER_FEAT_BITS = 256,
|
|
};
|
|
|
|
struct perf_file_section {
|
|
u64 offset;
|
|
u64 size;
|
|
};
|
|
|
|
struct perf_file_header {
|
|
u64 magic;
|
|
u64 size;
|
|
u64 attr_size;
|
|
struct perf_file_section attrs;
|
|
struct perf_file_section data;
|
|
struct perf_file_section event_types;
|
|
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
|
|
};
|
|
|
|
struct perf_pipe_file_header {
|
|
u64 magic;
|
|
u64 size;
|
|
};
|
|
|
|
struct perf_header;
|
|
|
|
int perf_file_header__read(struct perf_file_header *header,
|
|
struct perf_header *ph, int fd);
|
|
|
|
struct perf_header {
|
|
int frozen;
|
|
bool needs_swap;
|
|
s64 attr_offset;
|
|
u64 data_offset;
|
|
u64 data_size;
|
|
u64 event_offset;
|
|
u64 event_size;
|
|
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
|
|
};
|
|
|
|
struct perf_evlist;
|
|
struct perf_session;
|
|
|
|
int perf_session__read_header(struct perf_session *session, int fd);
|
|
int perf_session__write_header(struct perf_session *session,
|
|
struct perf_evlist *evlist,
|
|
int fd, bool at_exit);
|
|
int perf_header__write_pipe(int fd);
|
|
|
|
int perf_header__push_event(u64 id, const char *name);
|
|
char *perf_header__find_event(u64 id);
|
|
|
|
void perf_header__set_feat(struct perf_header *header, int feat);
|
|
void perf_header__clear_feat(struct perf_header *header, int feat);
|
|
bool perf_header__has_feat(const struct perf_header *header, int feat);
|
|
|
|
int perf_header__set_cmdline(int argc, const char **argv);
|
|
|
|
int perf_header__process_sections(struct perf_header *header, int fd,
|
|
void *data,
|
|
int (*process)(struct perf_file_section *section,
|
|
struct perf_header *ph,
|
|
int feat, int fd, void *data));
|
|
|
|
int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
|
|
|
|
int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
|
|
const char *name, bool is_kallsyms);
|
|
int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
|
|
|
|
int perf_event__synthesize_attr(struct perf_tool *tool,
|
|
struct perf_event_attr *attr, u16 ids, u64 *id,
|
|
perf_event__handler_t process);
|
|
int perf_event__synthesize_attrs(struct perf_tool *tool,
|
|
struct perf_session *session,
|
|
perf_event__handler_t process);
|
|
int perf_event__process_attr(union perf_event *event, struct perf_evlist **pevlist);
|
|
|
|
int perf_event__synthesize_event_type(struct perf_tool *tool,
|
|
u64 event_id, char *name,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__synthesize_event_types(struct perf_tool *tool,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__process_event_type(struct perf_tool *tool,
|
|
union perf_event *event);
|
|
|
|
int perf_event__synthesize_tracing_data(struct perf_tool *tool,
|
|
int fd, struct perf_evlist *evlist,
|
|
perf_event__handler_t process);
|
|
int perf_event__process_tracing_data(union perf_event *event,
|
|
struct perf_session *session);
|
|
|
|
int perf_event__synthesize_build_id(struct perf_tool *tool,
|
|
struct dso *pos, u16 misc,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__process_build_id(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_session *session);
|
|
|
|
/*
|
|
* arch specific callback
|
|
*/
|
|
int get_cpuid(char *buffer, size_t sz);
|
|
|
|
#endif /* __PERF_HEADER_H */
|