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v5.4
  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef __PERF_SESSION_H
  3#define __PERF_SESSION_H
  4
  5#include "trace-event.h"
  6#include "event.h"
  7#include "header.h"
  8#include "machine.h"
  9#include "data.h"
 10#include "ordered-events.h"
 11#include "util/compress.h"
 12#include <linux/kernel.h>
 13#include <linux/rbtree.h>
 14#include <linux/perf_event.h>
 15
 
 16struct ip_callchain;
 17struct symbol;
 18struct thread;
 19
 20struct auxtrace;
 21struct itrace_synth_opts;
 
 
 
 
 
 
 
 
 
 
 22
 23struct perf_session {
 24	struct perf_header	header;
 25	struct machines		machines;
 26	struct evlist	*evlist;
 27	struct auxtrace		*auxtrace;
 28	struct itrace_synth_opts *itrace_synth_opts;
 29	struct list_head	auxtrace_index;
 30	struct trace_event	tevent;
 31	struct perf_record_time_conv	time_conv;
 
 
 
 
 
 
 
 
 
 32	bool			repipe;
 33	bool			one_mmap;
 34	void			*one_mmap_addr;
 35	u64			one_mmap_offset;
 36	struct ordered_events	ordered_events;
 37	struct perf_data	*data;
 38	struct perf_tool	*tool;
 39	u64			bytes_transferred;
 40	u64			bytes_compressed;
 41	struct zstd_data	zstd_data;
 42	struct decomp		*decomp;
 43	struct decomp		*decomp_last;
 44};
 45
 46struct decomp {
 47	struct decomp *next;
 48	u64 file_pos;
 49	size_t mmap_len;
 50	u64 head;
 51	size_t size;
 52	char data[];
 53};
 54
 55struct perf_tool;
 56
 57struct perf_session *perf_session__new(struct perf_data *data,
 58				       bool repipe, struct perf_tool *tool);
 59void perf_session__delete(struct perf_session *session);
 60
 61void perf_event_header__bswap(struct perf_event_header *hdr);
 62
 63int perf_session__peek_event(struct perf_session *session, off_t file_offset,
 64			     void *buf, size_t buf_sz,
 65			     union perf_event **event_ptr,
 66			     struct perf_sample *sample);
 67
 68int perf_session__process_events(struct perf_session *session);
 69
 70int perf_session__queue_event(struct perf_session *s, union perf_event *event,
 71			      u64 timestamp, u64 file_offset);
 72
 73void perf_tool__fill_defaults(struct perf_tool *tool);
 74
 75int perf_session__resolve_callchain(struct perf_session *session,
 76				    struct evsel *evsel,
 77				    struct thread *thread,
 78				    struct ip_callchain *chain,
 79				    struct symbol **parent);
 80
 81bool perf_session__has_traces(struct perf_session *session, const char *msg);
 
 
 82
 
 
 
 
 83void perf_event__attr_swap(struct perf_event_attr *attr);
 84
 85int perf_session__create_kernel_maps(struct perf_session *session);
 
 
 
 86
 87void perf_session__set_id_hdr_size(struct perf_session *session);
 
 
 
 
 88
 89static inline
 90struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
 91{
 92	return machines__find(&session->machines, pid);
 
 
 93}
 94
 95static inline
 96struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
 97{
 98	return machines__findnew(&session->machines, pid);
 
 
 99}
100
101struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
102int perf_session__register_idle_thread(struct perf_session *session);
 
 
 
 
 
 
103
104size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
 
105
106size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
107
108size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
109					  bool (fn)(struct dso *dso, int parm), int parm);
110
111size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
112
113struct evsel *perf_session__find_first_evtype(struct perf_session *session,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
114					    unsigned int type);
115
 
 
 
 
116int perf_session__cpu_bitmap(struct perf_session *session,
117			     const char *cpu_list, unsigned long *cpu_bitmap);
118
119void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
120
121struct evsel_str_handler;
122
123int __perf_session__set_tracepoints_handlers(struct perf_session *session,
124					     const struct evsel_str_handler *assocs,
125					     size_t nr_assocs);
126
127#define perf_session__set_tracepoints_handlers(session, array) \
128	__perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
129
130extern volatile int session_done;
131
132#define session_done()	READ_ONCE(session_done)
133
134int perf_session__deliver_synth_event(struct perf_session *session,
135				      union perf_event *event,
136				      struct perf_sample *sample);
137
138int perf_event__process_id_index(struct perf_session *session,
139				 union perf_event *event);
140
141#endif /* __PERF_SESSION_H */
v3.5.6
 
  1#ifndef __PERF_SESSION_H
  2#define __PERF_SESSION_H
  3
  4#include "hist.h"
  5#include "event.h"
  6#include "header.h"
  7#include "symbol.h"
  8#include "thread.h"
 
 
 
  9#include <linux/rbtree.h>
 10#include "../../../include/linux/perf_event.h"
 11
 12struct sample_queue;
 13struct ip_callchain;
 
 14struct thread;
 15
 16struct ordered_samples {
 17	u64			last_flush;
 18	u64			next_flush;
 19	u64			max_timestamp;
 20	struct list_head	samples;
 21	struct list_head	sample_cache;
 22	struct list_head	to_free;
 23	struct sample_queue	*sample_buffer;
 24	struct sample_queue	*last_sample;
 25	int			sample_buffer_idx;
 26	unsigned int		nr_samples;
 27};
 28
 29struct perf_session {
 30	struct perf_header	header;
 31	unsigned long		size;
 32	unsigned long		mmap_window;
 33	struct machine		host_machine;
 34	struct rb_root		machines;
 35	struct perf_evlist	*evlist;
 36	/*
 37	 * FIXME: Need to split this up further, we need global
 38	 *	  stats + per event stats. 'perf diff' also needs
 39	 *	  to properly support multiple events in a single
 40	 *	  perf.data file.
 41	 */
 42	struct hists		hists;
 43	u64			sample_type;
 44	int			sample_size;
 45	int			fd;
 46	bool			fd_pipe;
 47	bool			repipe;
 48	bool			sample_id_all;
 49	u16			id_hdr_size;
 50	int			cwdlen;
 51	char			*cwd;
 52	struct ordered_samples	ordered_samples;
 53	char			filename[1];
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 54};
 55
 56struct perf_tool;
 57
 58struct perf_session *perf_session__new(const char *filename, int mode,
 59				       bool force, bool repipe,
 60				       struct perf_tool *tool);
 61void perf_session__delete(struct perf_session *self);
 62
 63void perf_event_header__bswap(struct perf_event_header *self);
 64
 65int __perf_session__process_events(struct perf_session *self,
 66				   u64 data_offset, u64 data_size, u64 size,
 67				   struct perf_tool *tool);
 68int perf_session__process_events(struct perf_session *self,
 69				 struct perf_tool *tool);
 
 
 
 
 
 70
 71int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
 
 72				    struct thread *thread,
 73				    struct ip_callchain *chain,
 74				    struct symbol **parent);
 75
 76struct branch_info *machine__resolve_bstack(struct machine *self,
 77					    struct thread *thread,
 78					    struct branch_stack *bs);
 79
 80bool perf_session__has_traces(struct perf_session *self, const char *msg);
 81
 82void mem_bswap_64(void *src, int byte_size);
 83void mem_bswap_32(void *src, int byte_size);
 84void perf_event__attr_swap(struct perf_event_attr *attr);
 85
 86int perf_session__create_kernel_maps(struct perf_session *self);
 87
 88void perf_session__update_sample_type(struct perf_session *self);
 89void perf_session__remove_thread(struct perf_session *self, struct thread *th);
 90
 91static inline
 92struct machine *perf_session__find_host_machine(struct perf_session *self)
 93{
 94	return &self->host_machine;
 95}
 96
 97static inline
 98struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 99{
100	if (pid == HOST_KERNEL_ID)
101		return &self->host_machine;
102	return machines__find(&self->machines, pid);
103}
104
105static inline
106struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
107{
108	if (pid == HOST_KERNEL_ID)
109		return &self->host_machine;
110	return machines__findnew(&self->machines, pid);
111}
112
113static inline
114void perf_session__process_machines(struct perf_session *self,
115				    struct perf_tool *tool,
116				    machine__process_t process)
117{
118	process(&self->host_machine, tool);
119	return machines__process(&self->machines, process, tool);
120}
121
122struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
123size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
124
125size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
126
127size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
128					  FILE *fp, bool with_hits);
129
130size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
131
132static inline int perf_session__parse_sample(struct perf_session *session,
133					     const union perf_event *event,
134					     struct perf_sample *sample)
135{
136	return perf_event__parse_sample(event, session->sample_type,
137					session->sample_size,
138					session->sample_id_all, sample,
139					session->header.needs_swap);
140}
141
142static inline int perf_session__synthesize_sample(struct perf_session *session,
143						  union perf_event *event,
144						  const struct perf_sample *sample)
145{
146	return perf_event__synthesize_sample(event, session->sample_type,
147					     sample, session->header.needs_swap);
148}
149
150struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
151					    unsigned int type);
152
153void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
154			  struct machine *machine, struct perf_evsel *evsel,
155			  int print_sym, int print_dso, int print_symoffset);
156
157int perf_session__cpu_bitmap(struct perf_session *session,
158			     const char *cpu_list, unsigned long *cpu_bitmap);
159
160void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
161#endif /* __PERF_SESSION_H */