da3789628f
The pevent thing is per perf.data file, so I made it stop being static and become a perf_session member, so tools processing perf.data files use perf_session and _there_ we read the trace events description into session->pevent and then change everywhere to stop using that single global pevent variable and use the per session one. Note that it _doesn't_ fall backs to trace__event_id, as we're not interested at all in what is present in the /sys/kernel/debug/tracing/events in the workstation doing the analysis, just in what is in the perf.data file. This patch also introduces perf_session__set_tracepoints_handlers that is the perf perf.data/session way to associate handlers to tracepoint events by resolving their IDs using the events descriptions stored in a perf.data file. Make 'perf sched' use it. Reported-by: Dmitry Antipov <dmitry.antipov@linaro.org> Tested-by: Dmitry Antipov <dmitry.antipov@linaro.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linaro-dev@lists.linaro.org Cc: patches@linaro.org Link: http://lkml.kernel.org/r/20120625232016.GA28525@infradead.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
132 lines
4.2 KiB
C
132 lines
4.2 KiB
C
#ifndef __PERF_EVLIST_H
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#define __PERF_EVLIST_H 1
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#include <linux/list.h>
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#include <stdio.h>
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#include "../perf.h"
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#include "event.h"
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#include "util.h"
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#include <unistd.h>
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struct pollfd;
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struct thread_map;
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struct cpu_map;
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struct perf_record_opts;
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#define PERF_EVLIST__HLIST_BITS 8
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#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
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struct perf_evlist {
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struct list_head entries;
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struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
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int nr_entries;
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int nr_fds;
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int nr_mmaps;
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int mmap_len;
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struct {
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int cork_fd;
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pid_t pid;
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} workload;
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bool overwrite;
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union perf_event event_copy;
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struct perf_mmap *mmap;
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struct pollfd *pollfd;
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struct thread_map *threads;
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struct cpu_map *cpus;
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struct perf_evsel *selected;
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};
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struct perf_evsel_str_handler {
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const char *name;
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void *handler;
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};
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struct perf_evsel;
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struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
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struct thread_map *threads);
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void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
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struct thread_map *threads);
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void perf_evlist__exit(struct perf_evlist *evlist);
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void perf_evlist__delete(struct perf_evlist *evlist);
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void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
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int perf_evlist__add_default(struct perf_evlist *evlist);
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int perf_evlist__add_attrs(struct perf_evlist *evlist,
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struct perf_event_attr *attrs, size_t nr_attrs);
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int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
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struct perf_event_attr *attrs, size_t nr_attrs);
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int perf_evlist__add_tracepoints(struct perf_evlist *evlist,
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const char *tracepoints[], size_t nr_tracepoints);
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int perf_evlist__set_tracepoints_handlers(struct perf_evlist *evlist,
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const struct perf_evsel_str_handler *assocs,
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size_t nr_assocs);
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#define perf_evlist__add_attrs_array(evlist, array) \
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perf_evlist__add_attrs(evlist, array, ARRAY_SIZE(array))
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#define perf_evlist__add_default_attrs(evlist, array) \
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__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
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#define perf_evlist__add_tracepoints_array(evlist, array) \
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perf_evlist__add_tracepoints(evlist, array, ARRAY_SIZE(array))
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#define perf_evlist__set_tracepoints_handlers_array(evlist, array) \
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perf_evlist__set_tracepoints_handlers(evlist, array, ARRAY_SIZE(array))
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struct perf_evsel *
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perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
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void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
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int cpu, int thread, u64 id);
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void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
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struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
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union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
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int perf_evlist__open(struct perf_evlist *evlist, bool group);
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void perf_evlist__config_attrs(struct perf_evlist *evlist,
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struct perf_record_opts *opts);
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int perf_evlist__prepare_workload(struct perf_evlist *evlist,
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struct perf_record_opts *opts,
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const char *argv[]);
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int perf_evlist__start_workload(struct perf_evlist *evlist);
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int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
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bool overwrite);
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void perf_evlist__munmap(struct perf_evlist *evlist);
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void perf_evlist__disable(struct perf_evlist *evlist);
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void perf_evlist__enable(struct perf_evlist *evlist);
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void perf_evlist__set_selected(struct perf_evlist *evlist,
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struct perf_evsel *evsel);
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static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
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struct cpu_map *cpus,
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struct thread_map *threads)
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{
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evlist->cpus = cpus;
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evlist->threads = threads;
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}
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int perf_evlist__create_maps(struct perf_evlist *evlist,
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struct perf_target *target);
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void perf_evlist__delete_maps(struct perf_evlist *evlist);
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int perf_evlist__set_filters(struct perf_evlist *evlist);
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u64 perf_evlist__sample_type(const struct perf_evlist *evlist);
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bool perf_evlist__sample_id_all(const const struct perf_evlist *evlist);
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u16 perf_evlist__id_hdr_size(const struct perf_evlist *evlist);
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bool perf_evlist__valid_sample_type(const struct perf_evlist *evlist);
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bool perf_evlist__valid_sample_id_all(const struct perf_evlist *evlist);
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void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
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struct list_head *list,
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int nr_entries);
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#endif /* __PERF_EVLIST_H */
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