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c446870d80
Hook into session processing so that AUX area decoding can synthesize events transparently to the tools. The advantages of transparent decoding are that tools can be used directly with perf.data files containing AUX area tracing data, which is easier for the user and more efficient than having a separate decoding tool. This will work as follows: 1. Tools will feed auxtrace events to the decoder using perf_tool->auxtrace() (support for that still to come). 2. The decoder can process side-band events as needed due to the auxtrace->process_event() hook. 3. The decoder can deliver synthesized events into the event stream using perf_session__deliver_synth_event(). Note the expectation is that decoding will work on data that is time-ordered with respect to the per-cpu or per-thread contexts that were recorded. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1428594864-29309-9-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
#ifndef __PERF_SESSION_H
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#define __PERF_SESSION_H
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#include "trace-event.h"
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#include "event.h"
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#include "header.h"
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#include "machine.h"
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#include "symbol.h"
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#include "thread.h"
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#include "data.h"
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#include "ordered-events.h"
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#include <linux/rbtree.h>
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#include <linux/perf_event.h>
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struct ip_callchain;
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struct thread;
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struct auxtrace;
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struct perf_session {
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struct perf_header header;
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struct machines machines;
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struct perf_evlist *evlist;
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struct auxtrace *auxtrace;
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struct trace_event tevent;
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bool repipe;
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bool one_mmap;
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void *one_mmap_addr;
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u64 one_mmap_offset;
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struct ordered_events ordered_events;
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struct perf_data_file *file;
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struct perf_tool *tool;
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};
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#define PRINT_IP_OPT_IP (1<<0)
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#define PRINT_IP_OPT_SYM (1<<1)
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#define PRINT_IP_OPT_DSO (1<<2)
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#define PRINT_IP_OPT_SYMOFFSET (1<<3)
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#define PRINT_IP_OPT_ONELINE (1<<4)
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#define PRINT_IP_OPT_SRCLINE (1<<5)
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struct perf_tool;
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struct perf_session *perf_session__new(struct perf_data_file *file,
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bool repipe, struct perf_tool *tool);
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void perf_session__delete(struct perf_session *session);
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void perf_event_header__bswap(struct perf_event_header *hdr);
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int perf_session__peek_event(struct perf_session *session, off_t file_offset,
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void *buf, size_t buf_sz,
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union perf_event **event_ptr,
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struct perf_sample *sample);
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int perf_session__process_events(struct perf_session *session);
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int perf_session__queue_event(struct perf_session *s, union perf_event *event,
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struct perf_sample *sample, u64 file_offset);
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void perf_tool__fill_defaults(struct perf_tool *tool);
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int perf_session__resolve_callchain(struct perf_session *session,
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struct perf_evsel *evsel,
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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 *session, const char *msg);
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void perf_event__attr_swap(struct perf_event_attr *attr);
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int perf_session__create_kernel_maps(struct perf_session *session);
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void perf_session__set_id_hdr_size(struct perf_session *session);
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static inline
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struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
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{
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return machines__find(&session->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 *session, pid_t pid)
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{
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return machines__findnew(&session->machines, pid);
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}
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struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
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size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
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size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
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size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
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bool (fn)(struct dso *dso, int parm), int parm);
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size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
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struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
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unsigned int type);
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void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
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struct addr_location *al,
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unsigned int print_opts, unsigned int stack_depth);
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int perf_session__cpu_bitmap(struct perf_session *session,
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const char *cpu_list, unsigned long *cpu_bitmap);
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void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
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struct perf_evsel_str_handler;
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int __perf_session__set_tracepoints_handlers(struct perf_session *session,
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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_session__set_tracepoints_handlers(session, array) \
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__perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
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extern volatile int session_done;
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#define session_done() ACCESS_ONCE(session_done)
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int perf_session__deliver_synth_event(struct perf_session *session,
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union perf_event *event,
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struct perf_sample *sample);
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int perf_event__process_id_index(struct perf_tool *tool,
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union perf_event *event,
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struct perf_session *session);
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int perf_event__synthesize_id_index(struct perf_tool *tool,
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perf_event__handler_t process,
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struct perf_evlist *evlist,
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struct machine *machine);
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#endif /* __PERF_SESSION_H */
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