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>
105 lines
3 KiB
C
105 lines
3 KiB
C
#ifndef _PERF_UTIL_TRACE_EVENT_H
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#define _PERF_UTIL_TRACE_EVENT_H
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#include "parse-events.h"
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#include "event-parse.h"
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#include "session.h"
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struct machine;
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struct perf_sample;
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union perf_event;
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struct perf_tool;
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struct thread;
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extern int header_page_size_size;
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extern int header_page_ts_size;
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extern int header_page_data_offset;
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extern bool latency_format;
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extern struct pevent *perf_pevent;
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enum {
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RINGBUF_TYPE_PADDING = 29,
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RINGBUF_TYPE_TIME_EXTEND = 30,
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RINGBUF_TYPE_TIME_STAMP = 31,
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};
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#ifndef TS_SHIFT
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#define TS_SHIFT 27
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#endif
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int bigendian(void);
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struct pevent *read_trace_init(int file_bigendian, int host_bigendian);
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void print_trace_event(struct pevent *pevent, int cpu, void *data, int size);
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void print_event(struct pevent *pevent, int cpu, void *data, int size,
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unsigned long long nsecs, char *comm);
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int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
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int parse_event_file(struct pevent *pevent,
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char *buf, unsigned long size, char *sys);
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struct pevent_record *trace_peek_data(struct pevent *pevent, int cpu);
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unsigned long long
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raw_field_value(struct event_format *event, const char *name, void *data);
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void *raw_field_ptr(struct event_format *event, const char *name, void *data);
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void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
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void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
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ssize_t trace_report(int fd, struct pevent **pevent, bool repipe);
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int trace_parse_common_type(struct pevent *pevent, void *data);
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int trace_parse_common_pid(struct pevent *pevent, void *data);
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struct event_format *trace_find_next_event(struct pevent *pevent,
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struct event_format *event);
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unsigned long long read_size(struct pevent *pevent, void *ptr, int size);
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unsigned long long eval_flag(const char *flag);
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struct pevent_record *trace_read_data(struct pevent *pevent, int cpu);
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int read_tracing_data(int fd, struct list_head *pattrs);
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struct tracing_data {
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/* size is only valid if temp is 'true' */
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ssize_t size;
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bool temp;
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char temp_file[50];
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};
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struct tracing_data *tracing_data_get(struct list_head *pattrs,
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int fd, bool temp);
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void tracing_data_put(struct tracing_data *tdata);
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struct scripting_ops {
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const char *name;
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int (*start_script) (const char *script, int argc, const char **argv);
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int (*stop_script) (void);
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void (*process_event) (union perf_event *event,
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struct pevent *pevent,
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struct perf_sample *sample,
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struct perf_evsel *evsel,
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struct machine *machine,
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struct thread *thread);
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int (*generate_script) (struct pevent *pevent, const char *outfile);
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};
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int script_spec_register(const char *spec, struct scripting_ops *ops);
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void setup_perl_scripting(void);
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void setup_python_scripting(void);
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struct scripting_context {
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struct pevent *pevent;
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void *event_data;
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};
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int common_pc(struct scripting_context *context);
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int common_flags(struct scripting_context *context);
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int common_lock_depth(struct scripting_context *context);
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#endif /* _PERF_UTIL_TRACE_EVENT_H */
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