![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
So that we can reuse things like the id to attr lookup routine (perf_evlist__id2evsel) that uses a hash table instead of the linear lookup done in the older perf_header_attr routines, etc. Also to make evsels/evlist more pervasive an API, simplyfing using the emerging perf lib. cc: Arun Sharma <arun@sharma-home.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
163 lines
4.2 KiB
C
163 lines
4.2 KiB
C
#ifndef __PERF_SESSION_H
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#define __PERF_SESSION_H
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#include "hist.h"
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#include "event.h"
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#include "header.h"
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#include "symbol.h"
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#include "thread.h"
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#include <linux/rbtree.h>
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#include "../../../include/linux/perf_event.h"
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struct sample_queue;
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struct ip_callchain;
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struct thread;
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struct ordered_samples {
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u64 last_flush;
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u64 next_flush;
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u64 max_timestamp;
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struct list_head samples;
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struct list_head sample_cache;
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struct list_head to_free;
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struct sample_queue *sample_buffer;
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struct sample_queue *last_sample;
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int sample_buffer_idx;
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};
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struct perf_session {
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struct perf_header header;
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unsigned long size;
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unsigned long mmap_window;
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struct rb_root threads;
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struct list_head dead_threads;
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struct thread *last_match;
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struct machine host_machine;
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struct rb_root machines;
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struct perf_evlist *evlist;
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/*
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* FIXME: Need to split this up further, we need global
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* stats + per event stats. 'perf diff' also needs
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* to properly support multiple events in a single
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* perf.data file.
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*/
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struct hists hists;
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u64 sample_type;
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int fd;
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bool fd_pipe;
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bool repipe;
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bool sample_id_all;
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u16 id_hdr_size;
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int cwdlen;
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char *cwd;
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struct ordered_samples ordered_samples;
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struct callchain_cursor callchain_cursor;
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char filename[0];
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};
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struct perf_event_ops;
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typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
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struct perf_session *session);
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typedef int (*event_synth_op)(union perf_event *self,
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struct perf_session *session);
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typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
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struct perf_event_ops *ops);
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struct perf_event_ops {
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event_op sample,
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mmap,
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comm,
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fork,
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exit,
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lost,
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read,
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throttle,
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unthrottle;
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event_synth_op attr,
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event_type,
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tracing_data,
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build_id;
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event_op2 finished_round;
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bool ordered_samples;
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bool ordering_requires_timestamps;
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};
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struct perf_session *perf_session__new(const char *filename, int mode,
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bool force, bool repipe,
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struct perf_event_ops *ops);
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void perf_session__delete(struct perf_session *self);
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void perf_event_header__bswap(struct perf_event_header *self);
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int __perf_session__process_events(struct perf_session *self,
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u64 data_offset, u64 data_size, u64 size,
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struct perf_event_ops *ops);
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int perf_session__process_events(struct perf_session *self,
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struct perf_event_ops *event_ops);
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int perf_session__resolve_callchain(struct perf_session *self,
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struct thread *thread,
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struct ip_callchain *chain,
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struct symbol **parent);
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bool perf_session__has_traces(struct perf_session *self, const char *msg);
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int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
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const char *symbol_name,
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u64 addr);
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void mem_bswap_64(void *src, int byte_size);
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int perf_session__create_kernel_maps(struct perf_session *self);
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void perf_session__update_sample_type(struct perf_session *self);
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void perf_session__remove_thread(struct perf_session *self, struct thread *th);
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static inline
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struct machine *perf_session__find_host_machine(struct perf_session *self)
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{
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return &self->host_machine;
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}
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static inline
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struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
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{
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if (pid == HOST_KERNEL_ID)
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return &self->host_machine;
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return machines__find(&self->machines, pid);
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}
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static inline
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struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
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{
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if (pid == HOST_KERNEL_ID)
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return &self->host_machine;
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return machines__findnew(&self->machines, pid);
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}
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static inline
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void perf_session__process_machines(struct perf_session *self,
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machine__process_t process)
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{
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process(&self->host_machine, self);
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return machines__process(&self->machines, process, self);
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}
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size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
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size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
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FILE *fp, bool with_hits);
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size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
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static inline int perf_session__parse_sample(struct perf_session *session,
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const union perf_event *event,
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struct perf_sample *sample)
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{
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return perf_event__parse_sample(event, session->sample_type,
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session->sample_id_all, sample);
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}
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#endif /* __PERF_SESSION_H */
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