8dc58101f2
This patch makes several changes to allow the perf event stream to be sent and received over a pipe: - adds pipe-specific versions of the header read/write code - adds pipe-specific version of the event processing code - adds a range of event types to be used for header or other pseudo events, above the range used by the kernel - checks the return value of event handlers, which they can use to skip over large events during event processing rather than actually reading them into event objects. - unifies the multiple do_read() functions and updates its users. Note that none of these changes affect the existing perf data file format or processing - this code only comes into play if perf output is sent to stdout (or is read from stdin). Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
142 lines
2.9 KiB
C
142 lines
2.9 KiB
C
#ifndef __PERF_RECORD_H
|
|
#define __PERF_RECORD_H
|
|
|
|
#include <limits.h>
|
|
|
|
#include "../perf.h"
|
|
#include "map.h"
|
|
|
|
/*
|
|
* PERF_SAMPLE_IP | PERF_SAMPLE_TID | *
|
|
*/
|
|
struct ip_event {
|
|
struct perf_event_header header;
|
|
u64 ip;
|
|
u32 pid, tid;
|
|
unsigned char __more_data[];
|
|
};
|
|
|
|
struct mmap_event {
|
|
struct perf_event_header header;
|
|
u32 pid, tid;
|
|
u64 start;
|
|
u64 len;
|
|
u64 pgoff;
|
|
char filename[PATH_MAX];
|
|
};
|
|
|
|
struct comm_event {
|
|
struct perf_event_header header;
|
|
u32 pid, tid;
|
|
char comm[16];
|
|
};
|
|
|
|
struct fork_event {
|
|
struct perf_event_header header;
|
|
u32 pid, ppid;
|
|
u32 tid, ptid;
|
|
u64 time;
|
|
};
|
|
|
|
struct lost_event {
|
|
struct perf_event_header header;
|
|
u64 id;
|
|
u64 lost;
|
|
};
|
|
|
|
/*
|
|
* PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
|
|
*/
|
|
struct read_event {
|
|
struct perf_event_header header;
|
|
u32 pid, tid;
|
|
u64 value;
|
|
u64 time_enabled;
|
|
u64 time_running;
|
|
u64 id;
|
|
};
|
|
|
|
struct sample_event {
|
|
struct perf_event_header header;
|
|
u64 array[];
|
|
};
|
|
|
|
struct sample_data {
|
|
u64 ip;
|
|
u32 pid, tid;
|
|
u64 time;
|
|
u64 addr;
|
|
u64 id;
|
|
u64 stream_id;
|
|
u64 period;
|
|
u32 cpu;
|
|
u32 raw_size;
|
|
void *raw_data;
|
|
struct ip_callchain *callchain;
|
|
};
|
|
|
|
#define BUILD_ID_SIZE 20
|
|
|
|
struct build_id_event {
|
|
struct perf_event_header header;
|
|
u8 build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
|
|
char filename[];
|
|
};
|
|
|
|
enum perf_header_event_type { /* above any possible kernel type */
|
|
PERF_RECORD_HEADER_MAX = 64,
|
|
};
|
|
|
|
typedef union event_union {
|
|
struct perf_event_header header;
|
|
struct ip_event ip;
|
|
struct mmap_event mmap;
|
|
struct comm_event comm;
|
|
struct fork_event fork;
|
|
struct lost_event lost;
|
|
struct read_event read;
|
|
struct sample_event sample;
|
|
} event_t;
|
|
|
|
struct events_stats {
|
|
u64 total;
|
|
u64 lost;
|
|
};
|
|
|
|
struct event_stat_id {
|
|
struct rb_node rb_node;
|
|
struct rb_root hists;
|
|
struct events_stats stats;
|
|
u64 config;
|
|
u64 event_stream;
|
|
u32 type;
|
|
};
|
|
|
|
void event__print_totals(void);
|
|
|
|
struct perf_session;
|
|
|
|
typedef int (*event__handler_t)(event_t *event, struct perf_session *session);
|
|
|
|
int event__synthesize_thread(pid_t pid, event__handler_t process,
|
|
struct perf_session *session);
|
|
void event__synthesize_threads(event__handler_t process,
|
|
struct perf_session *session);
|
|
int event__synthesize_kernel_mmap(event__handler_t process,
|
|
struct perf_session *session,
|
|
const char *symbol_name);
|
|
int event__synthesize_modules(event__handler_t process,
|
|
struct perf_session *session);
|
|
|
|
int event__process_comm(event_t *self, struct perf_session *session);
|
|
int event__process_lost(event_t *self, struct perf_session *session);
|
|
int event__process_mmap(event_t *self, struct perf_session *session);
|
|
int event__process_task(event_t *self, struct perf_session *session);
|
|
|
|
struct addr_location;
|
|
int event__preprocess_sample(const event_t *self, struct perf_session *session,
|
|
struct addr_location *al, symbol_filter_t filter);
|
|
int event__parse_sample(event_t *event, u64 type, struct sample_data *data);
|
|
|
|
#endif /* __PERF_RECORD_H */
|