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![Yang Jihong](/assets/img/avatar_default.png)
When printing perf_event_attr, always display perf_event_attr config and its symbol to improve the readability of debugging information. Before: # perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true <SNIP> ------------------------------------------------------------ perf_event_attr: size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5 ------------------------------------------------------------ perf_event_attr: type 1 size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6 ------------------------------------------------------------ perf_event_attr: type 2 size 136 config 0x143 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7 ------------------------------------------------------------ perf_event_attr: type 3 size 136 config 0x10005 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9 ------------------------------------------------------------ perf_event_attr: type 4 size 136 config 0x101 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10 ------------------------------------------------------------ perf_event_attr: type 5 size 136 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11 <SNIP> After: # perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true <SNIP> ------------------------------------------------------------ perf_event_attr: type 0 (PERF_TYPE_HARDWARE) size 136 config 0 (PERF_COUNT_HW_CPU_CYCLES) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 0 (PERF_COUNT_SW_CPU_CLOCK) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6 ------------------------------------------------------------ perf_event_attr: type 2 (PERF_TYPE_TRACEPOINT) size 136 config 0x143 (sched:sched_switch) { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7 ------------------------------------------------------------ perf_event_attr: type 3 (PERF_TYPE_HW_CACHE) size 136 config 0x10005 (PERF_COUNT_HW_CACHE_RESULT_MISS | PERF_COUNT_HW_CACHE_OP_READ | PERF_COUNT_HW_CACHE_BPU) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9 ------------------------------------------------------------ perf_event_attr: type 4 (PERF_TYPE_RAW) size 136 config 0x101 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10 ------------------------------------------------------------ perf_event_attr: type 5 (PERF_TYPE_BREAKPOINT) size 136 config 0 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 0x9 (PERF_COUNT_SW_DUMMY) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID inherit 1 mmap 1 comm 1 freq 1 task 1 sample_id_all 1 mmap2 1 comm_exec 1 ksymbol 1 bpf_event 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 12 <SNIP> Signed-off-by: Yang Jihong <yangjihong1@huawei.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: anshuman.khandual@arm.com Cc: mark.rutland@arm.com Cc: irogers@google.com Cc: jesussanp@google.com Cc: peterz@infradead.org Cc: acme@kernel.org Cc: jolsa@kernel.org Cc: alexander.shishkin@linux.intel.com Cc: mingo@redhat.com Link: https://lore.kernel.org/r/20230623054416.160858-5-yangjihong1@huawei.com [ fix perf import test by adding a dummy tracepoint_id__to_name() ] Signed-off-by: Namhyung Kim <namhyung@kernel.org>
1508 lines
40 KiB
C
1508 lines
40 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <Python.h>
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#include <structmember.h>
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#include <inttypes.h>
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#include <poll.h>
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#include <linux/err.h>
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#include <perf/cpumap.h>
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#ifdef HAVE_LIBTRACEEVENT
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#include <traceevent/event-parse.h>
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#endif
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#include <perf/mmap.h>
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#include "evlist.h"
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#include "callchain.h"
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#include "evsel.h"
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#include "event.h"
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#include "print_binary.h"
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#include "thread_map.h"
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#include "trace-event.h"
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#include "mmap.h"
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#include "stat.h"
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#include "metricgroup.h"
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#include "util/bpf-filter.h"
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#include "util/env.h"
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#include "util/pmu.h"
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#include "util/pmus.h"
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#include <internal/lib.h>
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#include "util.h"
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#if PY_MAJOR_VERSION < 3
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#define _PyUnicode_FromString(arg) \
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PyString_FromString(arg)
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#define _PyUnicode_AsString(arg) \
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PyString_AsString(arg)
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#define _PyUnicode_FromFormat(...) \
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PyString_FromFormat(__VA_ARGS__)
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#define _PyLong_FromLong(arg) \
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PyInt_FromLong(arg)
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#else
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#define _PyUnicode_FromString(arg) \
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PyUnicode_FromString(arg)
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#define _PyUnicode_FromFormat(...) \
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PyUnicode_FromFormat(__VA_ARGS__)
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#define _PyLong_FromLong(arg) \
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PyLong_FromLong(arg)
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#endif
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#ifndef Py_TYPE
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#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
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#endif
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/*
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* Avoid bringing in event parsing.
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*/
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int parse_event(struct evlist *evlist __maybe_unused, const char *str __maybe_unused)
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{
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return 0;
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}
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/*
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* Provide these two so that we don't have to link against callchain.c and
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* start dragging hist.c, etc.
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*/
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struct callchain_param callchain_param;
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int parse_callchain_record(const char *arg __maybe_unused,
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struct callchain_param *param __maybe_unused)
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{
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return 0;
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}
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/*
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* Add these not to drag util/env.c
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*/
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struct perf_env perf_env;
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const char *perf_env__cpuid(struct perf_env *env __maybe_unused)
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{
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return NULL;
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}
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// This one is a bit easier, wouldn't drag too much, but leave it as a stub we need it here
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const char *perf_env__arch(struct perf_env *env __maybe_unused)
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{
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return NULL;
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}
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/*
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* These ones are needed not to drag the PMU bandwagon, jevents generated
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* pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
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* doing per PMU perf_event_attr.exclude_guest handling, not really needed, so
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* far, for the perf python binding known usecases, revisit if this become
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* necessary.
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*/
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struct perf_pmu *evsel__find_pmu(const struct evsel *evsel __maybe_unused)
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{
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return NULL;
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}
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int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...)
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{
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return EOF;
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}
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int perf_pmus__num_core_pmus(void)
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{
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return 1;
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}
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bool evsel__is_aux_event(const struct evsel *evsel __maybe_unused)
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{
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return false;
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}
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/*
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* Add this one here not to drag util/metricgroup.c
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*/
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int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
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struct rblist *new_metric_events,
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struct rblist *old_metric_events)
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{
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return 0;
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}
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/*
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* Add this one here not to drag util/trace-event-info.c
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*/
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char *tracepoint_id_to_name(u64 config)
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{
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return NULL;
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}
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/*
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* XXX: All these evsel destructors need some better mechanism, like a linked
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* list of destructors registered when the relevant code indeed is used instead
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* of having more and more calls in perf_evsel__delete(). -- acme
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*
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* For now, add some more:
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*
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* Not to drag the BPF bandwagon...
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*/
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void bpf_counter__destroy(struct evsel *evsel);
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int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
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int bpf_counter__disable(struct evsel *evsel);
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void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
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{
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}
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int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, int cpu __maybe_unused, int fd __maybe_unused)
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{
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return 0;
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}
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int bpf_counter__disable(struct evsel *evsel __maybe_unused)
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{
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return 0;
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}
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// not to drag util/bpf-filter.c
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#ifdef HAVE_BPF_SKEL
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int perf_bpf_filter__prepare(struct evsel *evsel __maybe_unused)
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{
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return 0;
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}
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int perf_bpf_filter__destroy(struct evsel *evsel __maybe_unused)
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{
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return 0;
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}
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#endif
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/*
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* Support debug printing even though util/debug.c is not linked. That means
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* implementing 'verbose' and 'eprintf'.
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*/
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int verbose;
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int debug_peo_args;
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int eprintf(int level, int var, const char *fmt, ...);
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int eprintf(int level, int var, const char *fmt, ...)
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{
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va_list args;
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int ret = 0;
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if (var >= level) {
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va_start(args, fmt);
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ret = vfprintf(stderr, fmt, args);
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va_end(args);
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}
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return ret;
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}
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/* Define PyVarObject_HEAD_INIT for python 2.5 */
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#ifndef PyVarObject_HEAD_INIT
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# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
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#endif
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#if PY_MAJOR_VERSION < 3
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PyMODINIT_FUNC initperf(void);
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#else
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PyMODINIT_FUNC PyInit_perf(void);
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#endif
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#define member_def(type, member, ptype, help) \
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{ #member, ptype, \
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offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
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0, help }
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#define sample_member_def(name, member, ptype, help) \
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{ #name, ptype, \
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offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
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0, help }
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struct pyrf_event {
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PyObject_HEAD
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struct evsel *evsel;
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struct perf_sample sample;
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union perf_event event;
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};
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#define sample_members \
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sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
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sample_member_def(sample_pid, pid, T_INT, "event pid"), \
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sample_member_def(sample_tid, tid, T_INT, "event tid"), \
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sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
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sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
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sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
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sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
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sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
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sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
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static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
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static PyMemberDef pyrf_mmap_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(perf_event_header, misc, T_UINT, "event misc"),
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member_def(perf_record_mmap, pid, T_UINT, "event pid"),
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member_def(perf_record_mmap, tid, T_UINT, "event tid"),
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member_def(perf_record_mmap, start, T_ULONGLONG, "start of the map"),
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member_def(perf_record_mmap, len, T_ULONGLONG, "map length"),
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member_def(perf_record_mmap, pgoff, T_ULONGLONG, "page offset"),
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member_def(perf_record_mmap, filename, T_STRING_INPLACE, "backing store"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
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{
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PyObject *ret;
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char *s;
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if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRI_lx64 ", "
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"length: %#" PRI_lx64 ", offset: %#" PRI_lx64 ", "
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"filename: %s }",
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pevent->event.mmap.pid, pevent->event.mmap.tid,
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pevent->event.mmap.start, pevent->event.mmap.len,
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pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
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ret = PyErr_NoMemory();
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} else {
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ret = _PyUnicode_FromString(s);
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free(s);
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}
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return ret;
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}
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static PyTypeObject pyrf_mmap_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.mmap_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_mmap_event__doc,
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.tp_members = pyrf_mmap_event__members,
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.tp_repr = (reprfunc)pyrf_mmap_event__repr,
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};
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static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
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static PyMemberDef pyrf_task_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(perf_record_fork, pid, T_UINT, "event pid"),
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member_def(perf_record_fork, ppid, T_UINT, "event ppid"),
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member_def(perf_record_fork, tid, T_UINT, "event tid"),
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member_def(perf_record_fork, ptid, T_UINT, "event ptid"),
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member_def(perf_record_fork, time, T_ULONGLONG, "timestamp"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
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{
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return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
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"ptid: %u, time: %" PRI_lu64 "}",
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pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
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pevent->event.fork.pid,
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pevent->event.fork.ppid,
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pevent->event.fork.tid,
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pevent->event.fork.ptid,
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pevent->event.fork.time);
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}
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static PyTypeObject pyrf_task_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.task_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_task_event__doc,
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.tp_members = pyrf_task_event__members,
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.tp_repr = (reprfunc)pyrf_task_event__repr,
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};
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static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
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static PyMemberDef pyrf_comm_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(perf_record_comm, pid, T_UINT, "event pid"),
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member_def(perf_record_comm, tid, T_UINT, "event tid"),
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member_def(perf_record_comm, comm, T_STRING_INPLACE, "process name"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
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{
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return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
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pevent->event.comm.pid,
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pevent->event.comm.tid,
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pevent->event.comm.comm);
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}
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static PyTypeObject pyrf_comm_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.comm_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_comm_event__doc,
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.tp_members = pyrf_comm_event__members,
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.tp_repr = (reprfunc)pyrf_comm_event__repr,
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};
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static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
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static PyMemberDef pyrf_throttle_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(perf_record_throttle, time, T_ULONGLONG, "timestamp"),
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member_def(perf_record_throttle, id, T_ULONGLONG, "event id"),
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member_def(perf_record_throttle, stream_id, T_ULONGLONG, "event stream id"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
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{
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struct perf_record_throttle *te = (struct perf_record_throttle *)(&pevent->event.header + 1);
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return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id: %" PRI_lu64
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", stream_id: %" PRI_lu64 " }",
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pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
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te->time, te->id, te->stream_id);
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}
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static PyTypeObject pyrf_throttle_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.throttle_event",
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.tp_basicsize = sizeof(struct pyrf_event),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_throttle_event__doc,
|
|
.tp_members = pyrf_throttle_event__members,
|
|
.tp_repr = (reprfunc)pyrf_throttle_event__repr,
|
|
};
|
|
|
|
static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
|
|
|
|
static PyMemberDef pyrf_lost_event__members[] = {
|
|
sample_members
|
|
member_def(perf_record_lost, id, T_ULONGLONG, "event id"),
|
|
member_def(perf_record_lost, lost, T_ULONGLONG, "number of lost events"),
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
|
|
{
|
|
PyObject *ret;
|
|
char *s;
|
|
|
|
if (asprintf(&s, "{ type: lost, id: %#" PRI_lx64 ", "
|
|
"lost: %#" PRI_lx64 " }",
|
|
pevent->event.lost.id, pevent->event.lost.lost) < 0) {
|
|
ret = PyErr_NoMemory();
|
|
} else {
|
|
ret = _PyUnicode_FromString(s);
|
|
free(s);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static PyTypeObject pyrf_lost_event__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.lost_event",
|
|
.tp_basicsize = sizeof(struct pyrf_event),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_lost_event__doc,
|
|
.tp_members = pyrf_lost_event__members,
|
|
.tp_repr = (reprfunc)pyrf_lost_event__repr,
|
|
};
|
|
|
|
static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
|
|
|
|
static PyMemberDef pyrf_read_event__members[] = {
|
|
sample_members
|
|
member_def(perf_record_read, pid, T_UINT, "event pid"),
|
|
member_def(perf_record_read, tid, T_UINT, "event tid"),
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
|
|
{
|
|
return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
|
|
pevent->event.read.pid,
|
|
pevent->event.read.tid);
|
|
/*
|
|
* FIXME: return the array of read values,
|
|
* making this method useful ;-)
|
|
*/
|
|
}
|
|
|
|
static PyTypeObject pyrf_read_event__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.read_event",
|
|
.tp_basicsize = sizeof(struct pyrf_event),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_read_event__doc,
|
|
.tp_members = pyrf_read_event__members,
|
|
.tp_repr = (reprfunc)pyrf_read_event__repr,
|
|
};
|
|
|
|
static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
|
|
|
|
static PyMemberDef pyrf_sample_event__members[] = {
|
|
sample_members
|
|
member_def(perf_event_header, type, T_UINT, "event type"),
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
|
|
{
|
|
PyObject *ret;
|
|
char *s;
|
|
|
|
if (asprintf(&s, "{ type: sample }") < 0) {
|
|
ret = PyErr_NoMemory();
|
|
} else {
|
|
ret = _PyUnicode_FromString(s);
|
|
free(s);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifdef HAVE_LIBTRACEEVENT
|
|
static bool is_tracepoint(struct pyrf_event *pevent)
|
|
{
|
|
return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT;
|
|
}
|
|
|
|
static PyObject*
|
|
tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
|
|
{
|
|
struct tep_handle *pevent = field->event->tep;
|
|
void *data = pe->sample.raw_data;
|
|
PyObject *ret = NULL;
|
|
unsigned long long val;
|
|
unsigned int offset, len;
|
|
|
|
if (field->flags & TEP_FIELD_IS_ARRAY) {
|
|
offset = field->offset;
|
|
len = field->size;
|
|
if (field->flags & TEP_FIELD_IS_DYNAMIC) {
|
|
val = tep_read_number(pevent, data + offset, len);
|
|
offset = val;
|
|
len = offset >> 16;
|
|
offset &= 0xffff;
|
|
if (tep_field_is_relative(field->flags))
|
|
offset += field->offset + field->size;
|
|
}
|
|
if (field->flags & TEP_FIELD_IS_STRING &&
|
|
is_printable_array(data + offset, len)) {
|
|
ret = _PyUnicode_FromString((char *)data + offset);
|
|
} else {
|
|
ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
|
|
field->flags &= ~TEP_FIELD_IS_STRING;
|
|
}
|
|
} else {
|
|
val = tep_read_number(pevent, data + field->offset,
|
|
field->size);
|
|
if (field->flags & TEP_FIELD_IS_POINTER)
|
|
ret = PyLong_FromUnsignedLong((unsigned long) val);
|
|
else if (field->flags & TEP_FIELD_IS_SIGNED)
|
|
ret = PyLong_FromLong((long) val);
|
|
else
|
|
ret = PyLong_FromUnsignedLong((unsigned long) val);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static PyObject*
|
|
get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
|
|
{
|
|
const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
|
|
struct evsel *evsel = pevent->evsel;
|
|
struct tep_format_field *field;
|
|
|
|
if (!evsel->tp_format) {
|
|
struct tep_event *tp_format;
|
|
|
|
tp_format = trace_event__tp_format_id(evsel->core.attr.config);
|
|
if (IS_ERR_OR_NULL(tp_format))
|
|
return NULL;
|
|
|
|
evsel->tp_format = tp_format;
|
|
}
|
|
|
|
field = tep_find_any_field(evsel->tp_format, str);
|
|
if (!field)
|
|
return NULL;
|
|
|
|
return tracepoint_field(pevent, field);
|
|
}
|
|
#endif /* HAVE_LIBTRACEEVENT */
|
|
|
|
static PyObject*
|
|
pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
|
|
{
|
|
PyObject *obj = NULL;
|
|
|
|
#ifdef HAVE_LIBTRACEEVENT
|
|
if (is_tracepoint(pevent))
|
|
obj = get_tracepoint_field(pevent, attr_name);
|
|
#endif
|
|
|
|
return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
|
|
}
|
|
|
|
static PyTypeObject pyrf_sample_event__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.sample_event",
|
|
.tp_basicsize = sizeof(struct pyrf_event),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_sample_event__doc,
|
|
.tp_members = pyrf_sample_event__members,
|
|
.tp_repr = (reprfunc)pyrf_sample_event__repr,
|
|
.tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
|
|
};
|
|
|
|
static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
|
|
|
|
static PyMemberDef pyrf_context_switch_event__members[] = {
|
|
sample_members
|
|
member_def(perf_event_header, type, T_UINT, "event type"),
|
|
member_def(perf_record_switch, next_prev_pid, T_UINT, "next/prev pid"),
|
|
member_def(perf_record_switch, next_prev_tid, T_UINT, "next/prev tid"),
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
|
|
{
|
|
PyObject *ret;
|
|
char *s;
|
|
|
|
if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
|
|
pevent->event.context_switch.next_prev_pid,
|
|
pevent->event.context_switch.next_prev_tid,
|
|
!!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
|
|
ret = PyErr_NoMemory();
|
|
} else {
|
|
ret = _PyUnicode_FromString(s);
|
|
free(s);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static PyTypeObject pyrf_context_switch_event__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.context_switch_event",
|
|
.tp_basicsize = sizeof(struct pyrf_event),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_context_switch_event__doc,
|
|
.tp_members = pyrf_context_switch_event__members,
|
|
.tp_repr = (reprfunc)pyrf_context_switch_event__repr,
|
|
};
|
|
|
|
static int pyrf_event__setup_types(void)
|
|
{
|
|
int err;
|
|
pyrf_mmap_event__type.tp_new =
|
|
pyrf_task_event__type.tp_new =
|
|
pyrf_comm_event__type.tp_new =
|
|
pyrf_lost_event__type.tp_new =
|
|
pyrf_read_event__type.tp_new =
|
|
pyrf_sample_event__type.tp_new =
|
|
pyrf_context_switch_event__type.tp_new =
|
|
pyrf_throttle_event__type.tp_new = PyType_GenericNew;
|
|
err = PyType_Ready(&pyrf_mmap_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_lost_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_task_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_comm_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_throttle_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_read_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_sample_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
err = PyType_Ready(&pyrf_context_switch_event__type);
|
|
if (err < 0)
|
|
goto out;
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static PyTypeObject *pyrf_event__type[] = {
|
|
[PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
|
|
[PERF_RECORD_LOST] = &pyrf_lost_event__type,
|
|
[PERF_RECORD_COMM] = &pyrf_comm_event__type,
|
|
[PERF_RECORD_EXIT] = &pyrf_task_event__type,
|
|
[PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
|
|
[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
|
|
[PERF_RECORD_FORK] = &pyrf_task_event__type,
|
|
[PERF_RECORD_READ] = &pyrf_read_event__type,
|
|
[PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
|
|
[PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
|
|
[PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
|
|
};
|
|
|
|
static PyObject *pyrf_event__new(union perf_event *event)
|
|
{
|
|
struct pyrf_event *pevent;
|
|
PyTypeObject *ptype;
|
|
|
|
if ((event->header.type < PERF_RECORD_MMAP ||
|
|
event->header.type > PERF_RECORD_SAMPLE) &&
|
|
!(event->header.type == PERF_RECORD_SWITCH ||
|
|
event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
|
|
return NULL;
|
|
|
|
ptype = pyrf_event__type[event->header.type];
|
|
pevent = PyObject_New(struct pyrf_event, ptype);
|
|
if (pevent != NULL)
|
|
memcpy(&pevent->event, event, event->header.size);
|
|
return (PyObject *)pevent;
|
|
}
|
|
|
|
struct pyrf_cpu_map {
|
|
PyObject_HEAD
|
|
|
|
struct perf_cpu_map *cpus;
|
|
};
|
|
|
|
static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
static char *kwlist[] = { "cpustr", NULL };
|
|
char *cpustr = NULL;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
|
|
kwlist, &cpustr))
|
|
return -1;
|
|
|
|
pcpus->cpus = perf_cpu_map__new(cpustr);
|
|
if (pcpus->cpus == NULL)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
|
|
{
|
|
perf_cpu_map__put(pcpus->cpus);
|
|
Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
|
|
}
|
|
|
|
static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
|
|
{
|
|
struct pyrf_cpu_map *pcpus = (void *)obj;
|
|
|
|
return perf_cpu_map__nr(pcpus->cpus);
|
|
}
|
|
|
|
static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
|
|
{
|
|
struct pyrf_cpu_map *pcpus = (void *)obj;
|
|
|
|
if (i >= perf_cpu_map__nr(pcpus->cpus))
|
|
return NULL;
|
|
|
|
return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
|
|
}
|
|
|
|
static PySequenceMethods pyrf_cpu_map__sequence_methods = {
|
|
.sq_length = pyrf_cpu_map__length,
|
|
.sq_item = pyrf_cpu_map__item,
|
|
};
|
|
|
|
static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
|
|
|
|
static PyTypeObject pyrf_cpu_map__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.cpu_map",
|
|
.tp_basicsize = sizeof(struct pyrf_cpu_map),
|
|
.tp_dealloc = (destructor)pyrf_cpu_map__delete,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_cpu_map__doc,
|
|
.tp_as_sequence = &pyrf_cpu_map__sequence_methods,
|
|
.tp_init = (initproc)pyrf_cpu_map__init,
|
|
};
|
|
|
|
static int pyrf_cpu_map__setup_types(void)
|
|
{
|
|
pyrf_cpu_map__type.tp_new = PyType_GenericNew;
|
|
return PyType_Ready(&pyrf_cpu_map__type);
|
|
}
|
|
|
|
struct pyrf_thread_map {
|
|
PyObject_HEAD
|
|
|
|
struct perf_thread_map *threads;
|
|
};
|
|
|
|
static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
static char *kwlist[] = { "pid", "tid", "uid", NULL };
|
|
int pid = -1, tid = -1, uid = UINT_MAX;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
|
|
kwlist, &pid, &tid, &uid))
|
|
return -1;
|
|
|
|
pthreads->threads = thread_map__new(pid, tid, uid);
|
|
if (pthreads->threads == NULL)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
|
|
{
|
|
perf_thread_map__put(pthreads->threads);
|
|
Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
|
|
}
|
|
|
|
static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
|
|
{
|
|
struct pyrf_thread_map *pthreads = (void *)obj;
|
|
|
|
return perf_thread_map__nr(pthreads->threads);
|
|
}
|
|
|
|
static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
|
|
{
|
|
struct pyrf_thread_map *pthreads = (void *)obj;
|
|
|
|
if (i >= perf_thread_map__nr(pthreads->threads))
|
|
return NULL;
|
|
|
|
return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
|
|
}
|
|
|
|
static PySequenceMethods pyrf_thread_map__sequence_methods = {
|
|
.sq_length = pyrf_thread_map__length,
|
|
.sq_item = pyrf_thread_map__item,
|
|
};
|
|
|
|
static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
|
|
|
|
static PyTypeObject pyrf_thread_map__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.thread_map",
|
|
.tp_basicsize = sizeof(struct pyrf_thread_map),
|
|
.tp_dealloc = (destructor)pyrf_thread_map__delete,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_thread_map__doc,
|
|
.tp_as_sequence = &pyrf_thread_map__sequence_methods,
|
|
.tp_init = (initproc)pyrf_thread_map__init,
|
|
};
|
|
|
|
static int pyrf_thread_map__setup_types(void)
|
|
{
|
|
pyrf_thread_map__type.tp_new = PyType_GenericNew;
|
|
return PyType_Ready(&pyrf_thread_map__type);
|
|
}
|
|
|
|
struct pyrf_evsel {
|
|
PyObject_HEAD
|
|
|
|
struct evsel evsel;
|
|
};
|
|
|
|
static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
struct perf_event_attr attr = {
|
|
.type = PERF_TYPE_HARDWARE,
|
|
.config = PERF_COUNT_HW_CPU_CYCLES,
|
|
.sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
|
|
};
|
|
static char *kwlist[] = {
|
|
"type",
|
|
"config",
|
|
"sample_freq",
|
|
"sample_period",
|
|
"sample_type",
|
|
"read_format",
|
|
"disabled",
|
|
"inherit",
|
|
"pinned",
|
|
"exclusive",
|
|
"exclude_user",
|
|
"exclude_kernel",
|
|
"exclude_hv",
|
|
"exclude_idle",
|
|
"mmap",
|
|
"context_switch",
|
|
"comm",
|
|
"freq",
|
|
"inherit_stat",
|
|
"enable_on_exec",
|
|
"task",
|
|
"watermark",
|
|
"precise_ip",
|
|
"mmap_data",
|
|
"sample_id_all",
|
|
"wakeup_events",
|
|
"bp_type",
|
|
"bp_addr",
|
|
"bp_len",
|
|
NULL
|
|
};
|
|
u64 sample_period = 0;
|
|
u32 disabled = 0,
|
|
inherit = 0,
|
|
pinned = 0,
|
|
exclusive = 0,
|
|
exclude_user = 0,
|
|
exclude_kernel = 0,
|
|
exclude_hv = 0,
|
|
exclude_idle = 0,
|
|
mmap = 0,
|
|
context_switch = 0,
|
|
comm = 0,
|
|
freq = 1,
|
|
inherit_stat = 0,
|
|
enable_on_exec = 0,
|
|
task = 0,
|
|
watermark = 0,
|
|
precise_ip = 0,
|
|
mmap_data = 0,
|
|
sample_id_all = 1;
|
|
int idx = 0;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
|
|
"|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
|
|
&attr.type, &attr.config, &attr.sample_freq,
|
|
&sample_period, &attr.sample_type,
|
|
&attr.read_format, &disabled, &inherit,
|
|
&pinned, &exclusive, &exclude_user,
|
|
&exclude_kernel, &exclude_hv, &exclude_idle,
|
|
&mmap, &context_switch, &comm, &freq, &inherit_stat,
|
|
&enable_on_exec, &task, &watermark,
|
|
&precise_ip, &mmap_data, &sample_id_all,
|
|
&attr.wakeup_events, &attr.bp_type,
|
|
&attr.bp_addr, &attr.bp_len, &idx))
|
|
return -1;
|
|
|
|
/* union... */
|
|
if (sample_period != 0) {
|
|
if (attr.sample_freq != 0)
|
|
return -1; /* FIXME: throw right exception */
|
|
attr.sample_period = sample_period;
|
|
}
|
|
|
|
/* Bitfields */
|
|
attr.disabled = disabled;
|
|
attr.inherit = inherit;
|
|
attr.pinned = pinned;
|
|
attr.exclusive = exclusive;
|
|
attr.exclude_user = exclude_user;
|
|
attr.exclude_kernel = exclude_kernel;
|
|
attr.exclude_hv = exclude_hv;
|
|
attr.exclude_idle = exclude_idle;
|
|
attr.mmap = mmap;
|
|
attr.context_switch = context_switch;
|
|
attr.comm = comm;
|
|
attr.freq = freq;
|
|
attr.inherit_stat = inherit_stat;
|
|
attr.enable_on_exec = enable_on_exec;
|
|
attr.task = task;
|
|
attr.watermark = watermark;
|
|
attr.precise_ip = precise_ip;
|
|
attr.mmap_data = mmap_data;
|
|
attr.sample_id_all = sample_id_all;
|
|
attr.size = sizeof(attr);
|
|
|
|
evsel__init(&pevsel->evsel, &attr, idx);
|
|
return 0;
|
|
}
|
|
|
|
static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
|
|
{
|
|
evsel__exit(&pevsel->evsel);
|
|
Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
|
|
}
|
|
|
|
static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
struct evsel *evsel = &pevsel->evsel;
|
|
struct perf_cpu_map *cpus = NULL;
|
|
struct perf_thread_map *threads = NULL;
|
|
PyObject *pcpus = NULL, *pthreads = NULL;
|
|
int group = 0, inherit = 0;
|
|
static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
|
|
&pcpus, &pthreads, &group, &inherit))
|
|
return NULL;
|
|
|
|
if (pthreads != NULL)
|
|
threads = ((struct pyrf_thread_map *)pthreads)->threads;
|
|
|
|
if (pcpus != NULL)
|
|
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
|
|
|
|
evsel->core.attr.inherit = inherit;
|
|
/*
|
|
* This will group just the fds for this single evsel, to group
|
|
* multiple events, use evlist.open().
|
|
*/
|
|
if (evsel__open(evsel, cpus, threads) < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static PyMethodDef pyrf_evsel__methods[] = {
|
|
{
|
|
.ml_name = "open",
|
|
.ml_meth = (PyCFunction)pyrf_evsel__open,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("open the event selector file descriptor table.")
|
|
},
|
|
{ .ml_name = NULL, }
|
|
};
|
|
|
|
static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
|
|
|
|
static PyTypeObject pyrf_evsel__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.evsel",
|
|
.tp_basicsize = sizeof(struct pyrf_evsel),
|
|
.tp_dealloc = (destructor)pyrf_evsel__delete,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_doc = pyrf_evsel__doc,
|
|
.tp_methods = pyrf_evsel__methods,
|
|
.tp_init = (initproc)pyrf_evsel__init,
|
|
};
|
|
|
|
static int pyrf_evsel__setup_types(void)
|
|
{
|
|
pyrf_evsel__type.tp_new = PyType_GenericNew;
|
|
return PyType_Ready(&pyrf_evsel__type);
|
|
}
|
|
|
|
struct pyrf_evlist {
|
|
PyObject_HEAD
|
|
|
|
struct evlist evlist;
|
|
};
|
|
|
|
static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
|
|
PyObject *args, PyObject *kwargs __maybe_unused)
|
|
{
|
|
PyObject *pcpus = NULL, *pthreads = NULL;
|
|
struct perf_cpu_map *cpus;
|
|
struct perf_thread_map *threads;
|
|
|
|
if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
|
|
return -1;
|
|
|
|
threads = ((struct pyrf_thread_map *)pthreads)->threads;
|
|
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
|
|
evlist__init(&pevlist->evlist, cpus, threads);
|
|
return 0;
|
|
}
|
|
|
|
static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
|
|
{
|
|
evlist__exit(&pevlist->evlist);
|
|
Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
|
|
}
|
|
|
|
static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
struct evlist *evlist = &pevlist->evlist;
|
|
static char *kwlist[] = { "pages", "overwrite", NULL };
|
|
int pages = 128, overwrite = false;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
|
|
&pages, &overwrite))
|
|
return NULL;
|
|
|
|
if (evlist__mmap(evlist, pages) < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
struct evlist *evlist = &pevlist->evlist;
|
|
static char *kwlist[] = { "timeout", NULL };
|
|
int timeout = -1, n;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
|
|
return NULL;
|
|
|
|
n = evlist__poll(evlist, timeout);
|
|
if (n < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
return Py_BuildValue("i", n);
|
|
}
|
|
|
|
static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
|
|
PyObject *args __maybe_unused,
|
|
PyObject *kwargs __maybe_unused)
|
|
{
|
|
struct evlist *evlist = &pevlist->evlist;
|
|
PyObject *list = PyList_New(0);
|
|
int i;
|
|
|
|
for (i = 0; i < evlist->core.pollfd.nr; ++i) {
|
|
PyObject *file;
|
|
#if PY_MAJOR_VERSION < 3
|
|
FILE *fp = fdopen(evlist->core.pollfd.entries[i].fd, "r");
|
|
|
|
if (fp == NULL)
|
|
goto free_list;
|
|
|
|
file = PyFile_FromFile(fp, "perf", "r", NULL);
|
|
#else
|
|
file = PyFile_FromFd(evlist->core.pollfd.entries[i].fd, "perf", "r", -1,
|
|
NULL, NULL, NULL, 0);
|
|
#endif
|
|
if (file == NULL)
|
|
goto free_list;
|
|
|
|
if (PyList_Append(list, file) != 0) {
|
|
Py_DECREF(file);
|
|
goto free_list;
|
|
}
|
|
|
|
Py_DECREF(file);
|
|
}
|
|
|
|
return list;
|
|
free_list:
|
|
return PyErr_NoMemory();
|
|
}
|
|
|
|
|
|
static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
|
|
PyObject *args,
|
|
PyObject *kwargs __maybe_unused)
|
|
{
|
|
struct evlist *evlist = &pevlist->evlist;
|
|
PyObject *pevsel;
|
|
struct evsel *evsel;
|
|
|
|
if (!PyArg_ParseTuple(args, "O", &pevsel))
|
|
return NULL;
|
|
|
|
Py_INCREF(pevsel);
|
|
evsel = &((struct pyrf_evsel *)pevsel)->evsel;
|
|
evsel->core.idx = evlist->core.nr_entries;
|
|
evlist__add(evlist, evsel);
|
|
|
|
return Py_BuildValue("i", evlist->core.nr_entries);
|
|
}
|
|
|
|
static struct mmap *get_md(struct evlist *evlist, int cpu)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < evlist->core.nr_mmaps; i++) {
|
|
struct mmap *md = &evlist->mmap[i];
|
|
|
|
if (md->core.cpu.cpu == cpu)
|
|
return md;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
struct evlist *evlist = &pevlist->evlist;
|
|
union perf_event *event;
|
|
int sample_id_all = 1, cpu;
|
|
static char *kwlist[] = { "cpu", "sample_id_all", NULL };
|
|
struct mmap *md;
|
|
int err;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
|
|
&cpu, &sample_id_all))
|
|
return NULL;
|
|
|
|
md = get_md(evlist, cpu);
|
|
if (!md)
|
|
return NULL;
|
|
|
|
if (perf_mmap__read_init(&md->core) < 0)
|
|
goto end;
|
|
|
|
event = perf_mmap__read_event(&md->core);
|
|
if (event != NULL) {
|
|
PyObject *pyevent = pyrf_event__new(event);
|
|
struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
|
|
struct evsel *evsel;
|
|
|
|
if (pyevent == NULL)
|
|
return PyErr_NoMemory();
|
|
|
|
evsel = evlist__event2evsel(evlist, event);
|
|
if (!evsel) {
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
pevent->evsel = evsel;
|
|
|
|
err = evsel__parse_sample(evsel, event, &pevent->sample);
|
|
|
|
/* Consume the even only after we parsed it out. */
|
|
perf_mmap__consume(&md->core);
|
|
|
|
if (err)
|
|
return PyErr_Format(PyExc_OSError,
|
|
"perf: can't parse sample, err=%d", err);
|
|
return pyevent;
|
|
}
|
|
end:
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
struct evlist *evlist = &pevlist->evlist;
|
|
|
|
if (evlist__open(evlist) < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static PyMethodDef pyrf_evlist__methods[] = {
|
|
{
|
|
.ml_name = "mmap",
|
|
.ml_meth = (PyCFunction)pyrf_evlist__mmap,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("mmap the file descriptor table.")
|
|
},
|
|
{
|
|
.ml_name = "open",
|
|
.ml_meth = (PyCFunction)pyrf_evlist__open,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("open the file descriptors.")
|
|
},
|
|
{
|
|
.ml_name = "poll",
|
|
.ml_meth = (PyCFunction)pyrf_evlist__poll,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("poll the file descriptor table.")
|
|
},
|
|
{
|
|
.ml_name = "get_pollfd",
|
|
.ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("get the poll file descriptor table.")
|
|
},
|
|
{
|
|
.ml_name = "add",
|
|
.ml_meth = (PyCFunction)pyrf_evlist__add,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("adds an event selector to the list.")
|
|
},
|
|
{
|
|
.ml_name = "read_on_cpu",
|
|
.ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("reads an event.")
|
|
},
|
|
{ .ml_name = NULL, }
|
|
};
|
|
|
|
static Py_ssize_t pyrf_evlist__length(PyObject *obj)
|
|
{
|
|
struct pyrf_evlist *pevlist = (void *)obj;
|
|
|
|
return pevlist->evlist.core.nr_entries;
|
|
}
|
|
|
|
static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
|
|
{
|
|
struct pyrf_evlist *pevlist = (void *)obj;
|
|
struct evsel *pos;
|
|
|
|
if (i >= pevlist->evlist.core.nr_entries)
|
|
return NULL;
|
|
|
|
evlist__for_each_entry(&pevlist->evlist, pos) {
|
|
if (i-- == 0)
|
|
break;
|
|
}
|
|
|
|
return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
|
|
}
|
|
|
|
static PySequenceMethods pyrf_evlist__sequence_methods = {
|
|
.sq_length = pyrf_evlist__length,
|
|
.sq_item = pyrf_evlist__item,
|
|
};
|
|
|
|
static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
|
|
|
|
static PyTypeObject pyrf_evlist__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.evlist",
|
|
.tp_basicsize = sizeof(struct pyrf_evlist),
|
|
.tp_dealloc = (destructor)pyrf_evlist__delete,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
|
|
.tp_as_sequence = &pyrf_evlist__sequence_methods,
|
|
.tp_doc = pyrf_evlist__doc,
|
|
.tp_methods = pyrf_evlist__methods,
|
|
.tp_init = (initproc)pyrf_evlist__init,
|
|
};
|
|
|
|
static int pyrf_evlist__setup_types(void)
|
|
{
|
|
pyrf_evlist__type.tp_new = PyType_GenericNew;
|
|
return PyType_Ready(&pyrf_evlist__type);
|
|
}
|
|
|
|
#define PERF_CONST(name) { #name, PERF_##name }
|
|
|
|
static struct {
|
|
const char *name;
|
|
int value;
|
|
} perf__constants[] = {
|
|
PERF_CONST(TYPE_HARDWARE),
|
|
PERF_CONST(TYPE_SOFTWARE),
|
|
PERF_CONST(TYPE_TRACEPOINT),
|
|
PERF_CONST(TYPE_HW_CACHE),
|
|
PERF_CONST(TYPE_RAW),
|
|
PERF_CONST(TYPE_BREAKPOINT),
|
|
|
|
PERF_CONST(COUNT_HW_CPU_CYCLES),
|
|
PERF_CONST(COUNT_HW_INSTRUCTIONS),
|
|
PERF_CONST(COUNT_HW_CACHE_REFERENCES),
|
|
PERF_CONST(COUNT_HW_CACHE_MISSES),
|
|
PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
|
|
PERF_CONST(COUNT_HW_BRANCH_MISSES),
|
|
PERF_CONST(COUNT_HW_BUS_CYCLES),
|
|
PERF_CONST(COUNT_HW_CACHE_L1D),
|
|
PERF_CONST(COUNT_HW_CACHE_L1I),
|
|
PERF_CONST(COUNT_HW_CACHE_LL),
|
|
PERF_CONST(COUNT_HW_CACHE_DTLB),
|
|
PERF_CONST(COUNT_HW_CACHE_ITLB),
|
|
PERF_CONST(COUNT_HW_CACHE_BPU),
|
|
PERF_CONST(COUNT_HW_CACHE_OP_READ),
|
|
PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
|
|
PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
|
|
PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
|
|
PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
|
|
|
|
PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
|
|
PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
|
|
|
|
PERF_CONST(COUNT_SW_CPU_CLOCK),
|
|
PERF_CONST(COUNT_SW_TASK_CLOCK),
|
|
PERF_CONST(COUNT_SW_PAGE_FAULTS),
|
|
PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
|
|
PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
|
|
PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
|
|
PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
|
|
PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
|
|
PERF_CONST(COUNT_SW_EMULATION_FAULTS),
|
|
PERF_CONST(COUNT_SW_DUMMY),
|
|
|
|
PERF_CONST(SAMPLE_IP),
|
|
PERF_CONST(SAMPLE_TID),
|
|
PERF_CONST(SAMPLE_TIME),
|
|
PERF_CONST(SAMPLE_ADDR),
|
|
PERF_CONST(SAMPLE_READ),
|
|
PERF_CONST(SAMPLE_CALLCHAIN),
|
|
PERF_CONST(SAMPLE_ID),
|
|
PERF_CONST(SAMPLE_CPU),
|
|
PERF_CONST(SAMPLE_PERIOD),
|
|
PERF_CONST(SAMPLE_STREAM_ID),
|
|
PERF_CONST(SAMPLE_RAW),
|
|
|
|
PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
|
|
PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
|
|
PERF_CONST(FORMAT_ID),
|
|
PERF_CONST(FORMAT_GROUP),
|
|
|
|
PERF_CONST(RECORD_MMAP),
|
|
PERF_CONST(RECORD_LOST),
|
|
PERF_CONST(RECORD_COMM),
|
|
PERF_CONST(RECORD_EXIT),
|
|
PERF_CONST(RECORD_THROTTLE),
|
|
PERF_CONST(RECORD_UNTHROTTLE),
|
|
PERF_CONST(RECORD_FORK),
|
|
PERF_CONST(RECORD_READ),
|
|
PERF_CONST(RECORD_SAMPLE),
|
|
PERF_CONST(RECORD_MMAP2),
|
|
PERF_CONST(RECORD_AUX),
|
|
PERF_CONST(RECORD_ITRACE_START),
|
|
PERF_CONST(RECORD_LOST_SAMPLES),
|
|
PERF_CONST(RECORD_SWITCH),
|
|
PERF_CONST(RECORD_SWITCH_CPU_WIDE),
|
|
|
|
PERF_CONST(RECORD_MISC_SWITCH_OUT),
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
|
|
PyObject *args, PyObject *kwargs)
|
|
{
|
|
#ifndef HAVE_LIBTRACEEVENT
|
|
return NULL;
|
|
#else
|
|
struct tep_event *tp_format;
|
|
static char *kwlist[] = { "sys", "name", NULL };
|
|
char *sys = NULL;
|
|
char *name = NULL;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
|
|
&sys, &name))
|
|
return NULL;
|
|
|
|
tp_format = trace_event__tp_format(sys, name);
|
|
if (IS_ERR(tp_format))
|
|
return _PyLong_FromLong(-1);
|
|
|
|
return _PyLong_FromLong(tp_format->id);
|
|
#endif // HAVE_LIBTRACEEVENT
|
|
}
|
|
|
|
static PyMethodDef perf__methods[] = {
|
|
{
|
|
.ml_name = "tracepoint",
|
|
.ml_meth = (PyCFunction) pyrf__tracepoint,
|
|
.ml_flags = METH_VARARGS | METH_KEYWORDS,
|
|
.ml_doc = PyDoc_STR("Get tracepoint config.")
|
|
},
|
|
{ .ml_name = NULL, }
|
|
};
|
|
|
|
#if PY_MAJOR_VERSION < 3
|
|
PyMODINIT_FUNC initperf(void)
|
|
#else
|
|
PyMODINIT_FUNC PyInit_perf(void)
|
|
#endif
|
|
{
|
|
PyObject *obj;
|
|
int i;
|
|
PyObject *dict;
|
|
#if PY_MAJOR_VERSION < 3
|
|
PyObject *module = Py_InitModule("perf", perf__methods);
|
|
#else
|
|
static struct PyModuleDef moduledef = {
|
|
PyModuleDef_HEAD_INIT,
|
|
"perf", /* m_name */
|
|
"", /* m_doc */
|
|
-1, /* m_size */
|
|
perf__methods, /* m_methods */
|
|
NULL, /* m_reload */
|
|
NULL, /* m_traverse */
|
|
NULL, /* m_clear */
|
|
NULL, /* m_free */
|
|
};
|
|
PyObject *module = PyModule_Create(&moduledef);
|
|
#endif
|
|
|
|
if (module == NULL ||
|
|
pyrf_event__setup_types() < 0 ||
|
|
pyrf_evlist__setup_types() < 0 ||
|
|
pyrf_evsel__setup_types() < 0 ||
|
|
pyrf_thread_map__setup_types() < 0 ||
|
|
pyrf_cpu_map__setup_types() < 0)
|
|
#if PY_MAJOR_VERSION < 3
|
|
return;
|
|
#else
|
|
return module;
|
|
#endif
|
|
|
|
/* The page_size is placed in util object. */
|
|
page_size = sysconf(_SC_PAGE_SIZE);
|
|
|
|
Py_INCREF(&pyrf_evlist__type);
|
|
PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
|
|
|
|
Py_INCREF(&pyrf_evsel__type);
|
|
PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
|
|
|
|
Py_INCREF(&pyrf_mmap_event__type);
|
|
PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
|
|
|
|
Py_INCREF(&pyrf_lost_event__type);
|
|
PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
|
|
|
|
Py_INCREF(&pyrf_comm_event__type);
|
|
PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
|
|
|
|
Py_INCREF(&pyrf_task_event__type);
|
|
PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
|
|
|
|
Py_INCREF(&pyrf_throttle_event__type);
|
|
PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
|
|
|
|
Py_INCREF(&pyrf_task_event__type);
|
|
PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
|
|
|
|
Py_INCREF(&pyrf_read_event__type);
|
|
PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
|
|
|
|
Py_INCREF(&pyrf_sample_event__type);
|
|
PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
|
|
|
|
Py_INCREF(&pyrf_context_switch_event__type);
|
|
PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
|
|
|
|
Py_INCREF(&pyrf_thread_map__type);
|
|
PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
|
|
|
|
Py_INCREF(&pyrf_cpu_map__type);
|
|
PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
|
|
|
|
dict = PyModule_GetDict(module);
|
|
if (dict == NULL)
|
|
goto error;
|
|
|
|
for (i = 0; perf__constants[i].name != NULL; i++) {
|
|
obj = _PyLong_FromLong(perf__constants[i].value);
|
|
if (obj == NULL)
|
|
goto error;
|
|
PyDict_SetItemString(dict, perf__constants[i].name, obj);
|
|
Py_DECREF(obj);
|
|
}
|
|
|
|
error:
|
|
if (PyErr_Occurred())
|
|
PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
|
|
#if PY_MAJOR_VERSION >= 3
|
|
return module;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Dummy, to avoid dragging all the test_attr infrastructure in the python
|
|
* binding.
|
|
*/
|
|
void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
|
|
int fd, int group_fd, unsigned long flags)
|
|
{
|
|
}
|
|
|
|
void evlist__free_stats(struct evlist *evlist)
|
|
{
|
|
}
|