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884 lines
28 KiB
884 lines
28 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* auxtrace.h: AUX area trace support |
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* Copyright (c) 2013-2015, Intel Corporation. |
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*/ |
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#ifndef __PERF_AUXTRACE_H |
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#define __PERF_AUXTRACE_H |
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#include <sys/types.h> |
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#include <errno.h> |
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#include <stdbool.h> |
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#include <stddef.h> |
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#include <stdio.h> // FILE |
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#include <linux/list.h> |
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#include <linux/perf_event.h> |
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#include <linux/types.h> |
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#include <internal/cpumap.h> |
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#include <asm/bitsperlong.h> |
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#include <asm/barrier.h> |
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union perf_event; |
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struct perf_session; |
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struct evlist; |
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struct evsel; |
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struct perf_tool; |
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struct mmap; |
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struct perf_sample; |
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struct option; |
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struct record_opts; |
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struct perf_record_auxtrace_error; |
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struct perf_record_auxtrace_info; |
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struct events_stats; |
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struct perf_pmu; |
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enum auxtrace_error_type { |
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PERF_AUXTRACE_ERROR_ITRACE = 1, |
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PERF_AUXTRACE_ERROR_MAX |
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}; |
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/* Auxtrace records must have the same alignment as perf event records */ |
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#define PERF_AUXTRACE_RECORD_ALIGNMENT 8 |
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enum auxtrace_type { |
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PERF_AUXTRACE_UNKNOWN, |
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PERF_AUXTRACE_INTEL_PT, |
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PERF_AUXTRACE_INTEL_BTS, |
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PERF_AUXTRACE_CS_ETM, |
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PERF_AUXTRACE_ARM_SPE, |
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PERF_AUXTRACE_S390_CPUMSF, |
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}; |
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enum itrace_period_type { |
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PERF_ITRACE_PERIOD_INSTRUCTIONS, |
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PERF_ITRACE_PERIOD_TICKS, |
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PERF_ITRACE_PERIOD_NANOSECS, |
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}; |
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#define AUXTRACE_ERR_FLG_OVERFLOW (1 << ('o' - 'a')) |
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#define AUXTRACE_ERR_FLG_DATA_LOST (1 << ('l' - 'a')) |
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#define AUXTRACE_LOG_FLG_ALL_PERF_EVTS (1 << ('a' - 'a')) |
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#define AUXTRACE_LOG_FLG_USE_STDOUT (1 << ('o' - 'a')) |
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/** |
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* struct itrace_synth_opts - AUX area tracing synthesis options. |
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* @set: indicates whether or not options have been set |
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* @default_no_sample: Default to no sampling. |
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* @inject: indicates the event (not just the sample) must be fully synthesized |
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* because 'perf inject' will write it out |
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* @instructions: whether to synthesize 'instructions' events |
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* @branches: whether to synthesize 'branches' events |
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* (branch misses only for Arm SPE) |
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* @transactions: whether to synthesize events for transactions |
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* @ptwrites: whether to synthesize events for ptwrites |
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* @pwr_events: whether to synthesize power events |
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* @other_events: whether to synthesize other events recorded due to the use of |
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* aux_output |
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* @errors: whether to synthesize decoder error events |
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* @dont_decode: whether to skip decoding entirely |
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* @log: write a decoding log |
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* @calls: limit branch samples to calls (can be combined with @returns) |
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* @returns: limit branch samples to returns (can be combined with @calls) |
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* @callchain: add callchain to 'instructions' events |
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* @add_callchain: add callchain to existing event records |
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* @thread_stack: feed branches to the thread_stack |
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* @last_branch: add branch context to 'instruction' events |
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* @add_last_branch: add branch context to existing event records |
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* @approx_ipc: approximate IPC |
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* @flc: whether to synthesize first level cache events |
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* @llc: whether to synthesize last level cache events |
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* @tlb: whether to synthesize TLB events |
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* @remote_access: whether to synthesize remote access events |
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* @mem: whether to synthesize memory events |
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* @timeless_decoding: prefer "timeless" decoding i.e. ignore timestamps |
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* @vm_time_correlation: perform VM Time Correlation |
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* @vm_tm_corr_dry_run: VM Time Correlation dry-run |
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* @vm_tm_corr_args: VM Time Correlation implementation-specific arguments |
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* @callchain_sz: maximum callchain size |
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* @last_branch_sz: branch context size |
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* @period: 'instructions' events period |
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* @period_type: 'instructions' events period type |
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* @initial_skip: skip N events at the beginning. |
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* @cpu_bitmap: CPUs for which to synthesize events, or NULL for all |
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* @ptime_range: time intervals to trace or NULL |
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* @range_num: number of time intervals to trace |
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* @error_plus_flags: flags to affect what errors are reported |
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* @error_minus_flags: flags to affect what errors are reported |
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* @log_plus_flags: flags to affect what is logged |
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* @log_minus_flags: flags to affect what is logged |
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* @quick: quicker (less detailed) decoding |
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*/ |
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struct itrace_synth_opts { |
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bool set; |
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bool default_no_sample; |
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bool inject; |
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bool instructions; |
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bool branches; |
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bool transactions; |
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bool ptwrites; |
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bool pwr_events; |
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bool other_events; |
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bool errors; |
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bool dont_decode; |
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bool log; |
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bool calls; |
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bool returns; |
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bool callchain; |
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bool add_callchain; |
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bool thread_stack; |
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bool last_branch; |
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bool add_last_branch; |
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bool approx_ipc; |
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bool flc; |
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bool llc; |
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bool tlb; |
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bool remote_access; |
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bool mem; |
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bool timeless_decoding; |
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bool vm_time_correlation; |
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bool vm_tm_corr_dry_run; |
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char *vm_tm_corr_args; |
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unsigned int callchain_sz; |
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unsigned int last_branch_sz; |
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unsigned long long period; |
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enum itrace_period_type period_type; |
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unsigned long initial_skip; |
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unsigned long *cpu_bitmap; |
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struct perf_time_interval *ptime_range; |
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int range_num; |
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unsigned int error_plus_flags; |
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unsigned int error_minus_flags; |
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unsigned int log_plus_flags; |
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unsigned int log_minus_flags; |
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unsigned int quick; |
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}; |
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/** |
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* struct auxtrace_index_entry - indexes a AUX area tracing event within a |
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* perf.data file. |
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* @file_offset: offset within the perf.data file |
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* @sz: size of the event |
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*/ |
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struct auxtrace_index_entry { |
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u64 file_offset; |
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u64 sz; |
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}; |
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#define PERF_AUXTRACE_INDEX_ENTRY_COUNT 256 |
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/** |
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* struct auxtrace_index - index of AUX area tracing events within a perf.data |
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* file. |
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* @list: linking a number of arrays of entries |
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* @nr: number of entries |
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* @entries: array of entries |
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*/ |
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struct auxtrace_index { |
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struct list_head list; |
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size_t nr; |
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struct auxtrace_index_entry entries[PERF_AUXTRACE_INDEX_ENTRY_COUNT]; |
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}; |
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/** |
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* struct auxtrace - session callbacks to allow AUX area data decoding. |
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* @process_event: lets the decoder see all session events |
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* @process_auxtrace_event: process a PERF_RECORD_AUXTRACE event |
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* @queue_data: queue an AUX sample or PERF_RECORD_AUXTRACE event for later |
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* processing |
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* @dump_auxtrace_sample: dump AUX area sample data |
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* @flush_events: process any remaining data |
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* @free_events: free resources associated with event processing |
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* @free: free resources associated with the session |
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*/ |
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struct auxtrace { |
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int (*process_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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struct perf_tool *tool); |
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int (*process_auxtrace_event)(struct perf_session *session, |
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union perf_event *event, |
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struct perf_tool *tool); |
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int (*queue_data)(struct perf_session *session, |
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struct perf_sample *sample, union perf_event *event, |
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u64 data_offset); |
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void (*dump_auxtrace_sample)(struct perf_session *session, |
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struct perf_sample *sample); |
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int (*flush_events)(struct perf_session *session, |
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struct perf_tool *tool); |
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void (*free_events)(struct perf_session *session); |
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void (*free)(struct perf_session *session); |
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bool (*evsel_is_auxtrace)(struct perf_session *session, |
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struct evsel *evsel); |
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}; |
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/** |
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* struct auxtrace_buffer - a buffer containing AUX area tracing data. |
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* @list: buffers are queued in a list held by struct auxtrace_queue |
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* @size: size of the buffer in bytes |
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* @pid: in per-thread mode, the pid this buffer is associated with |
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* @tid: in per-thread mode, the tid this buffer is associated with |
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* @cpu: in per-cpu mode, the cpu this buffer is associated with |
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* @data: actual buffer data (can be null if the data has not been loaded) |
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* @data_offset: file offset at which the buffer can be read |
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* @mmap_addr: mmap address at which the buffer can be read |
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* @mmap_size: size of the mmap at @mmap_addr |
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* @data_needs_freeing: @data was malloc'd so free it when it is no longer |
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* needed |
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* @consecutive: the original data was split up and this buffer is consecutive |
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* to the previous buffer |
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* @offset: offset as determined by aux_head / aux_tail members of struct |
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* perf_event_mmap_page |
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* @reference: an implementation-specific reference determined when the data is |
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* recorded |
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* @buffer_nr: used to number each buffer |
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* @use_size: implementation actually only uses this number of bytes |
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* @use_data: implementation actually only uses data starting at this address |
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*/ |
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struct auxtrace_buffer { |
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struct list_head list; |
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size_t size; |
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pid_t pid; |
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pid_t tid; |
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struct perf_cpu cpu; |
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void *data; |
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off_t data_offset; |
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void *mmap_addr; |
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size_t mmap_size; |
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bool data_needs_freeing; |
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bool consecutive; |
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u64 offset; |
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u64 reference; |
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u64 buffer_nr; |
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size_t use_size; |
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void *use_data; |
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}; |
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/** |
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* struct auxtrace_queue - a queue of AUX area tracing data buffers. |
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* @head: head of buffer list |
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* @tid: in per-thread mode, the tid this queue is associated with |
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* @cpu: in per-cpu mode, the cpu this queue is associated with |
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* @set: %true once this queue has been dedicated to a specific thread or cpu |
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* @priv: implementation-specific data |
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*/ |
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struct auxtrace_queue { |
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struct list_head head; |
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pid_t tid; |
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int cpu; |
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bool set; |
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void *priv; |
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}; |
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/** |
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* struct auxtrace_queues - an array of AUX area tracing queues. |
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* @queue_array: array of queues |
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* @nr_queues: number of queues |
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* @new_data: set whenever new data is queued |
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* @populated: queues have been fully populated using the auxtrace_index |
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* @next_buffer_nr: used to number each buffer |
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*/ |
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struct auxtrace_queues { |
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struct auxtrace_queue *queue_array; |
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unsigned int nr_queues; |
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bool new_data; |
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bool populated; |
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u64 next_buffer_nr; |
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}; |
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/** |
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* struct auxtrace_heap_item - element of struct auxtrace_heap. |
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* @queue_nr: queue number |
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* @ordinal: value used for sorting (lowest ordinal is top of the heap) expected |
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* to be a timestamp |
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*/ |
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struct auxtrace_heap_item { |
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unsigned int queue_nr; |
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u64 ordinal; |
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}; |
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/** |
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* struct auxtrace_heap - a heap suitable for sorting AUX area tracing queues. |
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* @heap_array: the heap |
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* @heap_cnt: the number of elements in the heap |
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* @heap_sz: maximum number of elements (grows as needed) |
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*/ |
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struct auxtrace_heap { |
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struct auxtrace_heap_item *heap_array; |
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unsigned int heap_cnt; |
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unsigned int heap_sz; |
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}; |
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/** |
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* struct auxtrace_mmap - records an mmap of the auxtrace buffer. |
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* @base: address of mapped area |
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* @userpg: pointer to buffer's perf_event_mmap_page |
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* @mask: %0 if @len is not a power of two, otherwise (@len - %1) |
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* @len: size of mapped area |
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* @prev: previous aux_head |
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* @idx: index of this mmap |
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* @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu |
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* mmap) otherwise %0 |
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* @cpu: cpu number for a per-cpu mmap otherwise %-1 |
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*/ |
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struct auxtrace_mmap { |
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void *base; |
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void *userpg; |
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size_t mask; |
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size_t len; |
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u64 prev; |
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int idx; |
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pid_t tid; |
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int cpu; |
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}; |
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/** |
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* struct auxtrace_mmap_params - parameters to set up struct auxtrace_mmap. |
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* @mask: %0 if @len is not a power of two, otherwise (@len - %1) |
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* @offset: file offset of mapped area |
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* @len: size of mapped area |
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* @prot: mmap memory protection |
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* @idx: index of this mmap |
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* @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu |
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* mmap) otherwise %0 |
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* @cpu: cpu number for a per-cpu mmap otherwise %-1 |
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*/ |
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struct auxtrace_mmap_params { |
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size_t mask; |
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off_t offset; |
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size_t len; |
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int prot; |
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int idx; |
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pid_t tid; |
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struct perf_cpu cpu; |
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}; |
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/** |
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* struct auxtrace_record - callbacks for recording AUX area data. |
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* @recording_options: validate and process recording options |
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* @info_priv_size: return the size of the private data in auxtrace_info_event |
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* @info_fill: fill-in the private data in auxtrace_info_event |
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* @free: free this auxtrace record structure |
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* @snapshot_start: starting a snapshot |
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* @snapshot_finish: finishing a snapshot |
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* @find_snapshot: find data to snapshot within auxtrace mmap |
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* @parse_snapshot_options: parse snapshot options |
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* @reference: provide a 64-bit reference number for auxtrace_event |
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* @read_finish: called after reading from an auxtrace mmap |
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* @alignment: alignment (if any) for AUX area data |
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* @default_aux_sample_size: default sample size for --aux sample option |
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* @pmu: associated pmu |
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* @evlist: selected events list |
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*/ |
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struct auxtrace_record { |
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int (*recording_options)(struct auxtrace_record *itr, |
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struct evlist *evlist, |
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struct record_opts *opts); |
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size_t (*info_priv_size)(struct auxtrace_record *itr, |
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struct evlist *evlist); |
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int (*info_fill)(struct auxtrace_record *itr, |
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struct perf_session *session, |
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struct perf_record_auxtrace_info *auxtrace_info, |
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size_t priv_size); |
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void (*free)(struct auxtrace_record *itr); |
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int (*snapshot_start)(struct auxtrace_record *itr); |
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int (*snapshot_finish)(struct auxtrace_record *itr); |
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int (*find_snapshot)(struct auxtrace_record *itr, int idx, |
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struct auxtrace_mmap *mm, unsigned char *data, |
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u64 *head, u64 *old); |
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int (*parse_snapshot_options)(struct auxtrace_record *itr, |
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struct record_opts *opts, |
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const char *str); |
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u64 (*reference)(struct auxtrace_record *itr); |
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int (*read_finish)(struct auxtrace_record *itr, int idx); |
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unsigned int alignment; |
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unsigned int default_aux_sample_size; |
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struct perf_pmu *pmu; |
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struct evlist *evlist; |
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}; |
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/** |
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* struct addr_filter - address filter. |
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* @list: list node |
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* @range: true if it is a range filter |
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* @start: true if action is 'filter' or 'start' |
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* @action: 'filter', 'start' or 'stop' ('tracestop' is accepted but converted |
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* to 'stop') |
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* @sym_from: symbol name for the filter address |
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* @sym_to: symbol name that determines the filter size |
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* @sym_from_idx: selects n'th from symbols with the same name (0 means global |
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* and less than 0 means symbol must be unique) |
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* @sym_to_idx: same as @sym_from_idx but for @sym_to |
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* @addr: filter address |
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* @size: filter region size (for range filters) |
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* @filename: DSO file name or NULL for the kernel |
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* @str: allocated string that contains the other string members |
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*/ |
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struct addr_filter { |
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struct list_head list; |
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bool range; |
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bool start; |
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const char *action; |
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const char *sym_from; |
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const char *sym_to; |
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int sym_from_idx; |
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int sym_to_idx; |
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u64 addr; |
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u64 size; |
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const char *filename; |
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char *str; |
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}; |
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/** |
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* struct addr_filters - list of address filters. |
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* @head: list of address filters |
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* @cnt: number of address filters |
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*/ |
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struct addr_filters { |
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struct list_head head; |
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int cnt; |
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}; |
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struct auxtrace_cache; |
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#ifdef HAVE_AUXTRACE_SUPPORT |
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u64 compat_auxtrace_mmap__read_head(struct auxtrace_mmap *mm); |
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int compat_auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail); |
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static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm, |
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int kernel_is_64_bit __maybe_unused) |
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{ |
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struct perf_event_mmap_page *pc = mm->userpg; |
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u64 head; |
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#if BITS_PER_LONG == 32 |
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if (kernel_is_64_bit) |
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return compat_auxtrace_mmap__read_head(mm); |
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#endif |
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head = READ_ONCE(pc->aux_head); |
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/* Ensure all reads are done after we read the head */ |
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smp_rmb(); |
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return head; |
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} |
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static inline int auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail, |
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int kernel_is_64_bit __maybe_unused) |
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{ |
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struct perf_event_mmap_page *pc = mm->userpg; |
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#if BITS_PER_LONG == 32 |
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if (kernel_is_64_bit) |
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return compat_auxtrace_mmap__write_tail(mm, tail); |
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#endif |
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/* Ensure all reads are done before we write the tail out */ |
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smp_mb(); |
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WRITE_ONCE(pc->aux_tail, tail); |
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return 0; |
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} |
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int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, |
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struct auxtrace_mmap_params *mp, |
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void *userpg, int fd); |
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void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); |
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void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, |
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off_t auxtrace_offset, |
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unsigned int auxtrace_pages, |
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bool auxtrace_overwrite); |
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void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, |
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struct evlist *evlist, int idx, |
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bool per_cpu); |
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typedef int (*process_auxtrace_t)(struct perf_tool *tool, |
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struct mmap *map, |
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union perf_event *event, void *data1, |
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size_t len1, void *data2, size_t len2); |
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int auxtrace_mmap__read(struct mmap *map, struct auxtrace_record *itr, |
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struct perf_tool *tool, process_auxtrace_t fn); |
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int auxtrace_mmap__read_snapshot(struct mmap *map, |
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struct auxtrace_record *itr, |
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struct perf_tool *tool, process_auxtrace_t fn, |
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size_t snapshot_size); |
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int auxtrace_queues__init(struct auxtrace_queues *queues); |
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int auxtrace_queues__add_event(struct auxtrace_queues *queues, |
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struct perf_session *session, |
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union perf_event *event, off_t data_offset, |
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struct auxtrace_buffer **buffer_ptr); |
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struct auxtrace_queue * |
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auxtrace_queues__sample_queue(struct auxtrace_queues *queues, |
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struct perf_sample *sample, |
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struct perf_session *session); |
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int auxtrace_queues__add_sample(struct auxtrace_queues *queues, |
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struct perf_session *session, |
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struct perf_sample *sample, u64 data_offset, |
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u64 reference); |
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void auxtrace_queues__free(struct auxtrace_queues *queues); |
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int auxtrace_queues__process_index(struct auxtrace_queues *queues, |
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struct perf_session *session); |
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int auxtrace_queue_data(struct perf_session *session, bool samples, |
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bool events); |
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struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue, |
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struct auxtrace_buffer *buffer); |
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void *auxtrace_buffer__get_data_rw(struct auxtrace_buffer *buffer, int fd, bool rw); |
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static inline void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd) |
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{ |
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return auxtrace_buffer__get_data_rw(buffer, fd, false); |
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} |
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void auxtrace_buffer__put_data(struct auxtrace_buffer *buffer); |
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void auxtrace_buffer__drop_data(struct auxtrace_buffer *buffer); |
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void auxtrace_buffer__free(struct auxtrace_buffer *buffer); |
|
|
|
int auxtrace_heap__add(struct auxtrace_heap *heap, unsigned int queue_nr, |
|
u64 ordinal); |
|
void auxtrace_heap__pop(struct auxtrace_heap *heap); |
|
void auxtrace_heap__free(struct auxtrace_heap *heap); |
|
|
|
struct auxtrace_cache_entry { |
|
struct hlist_node hash; |
|
u32 key; |
|
}; |
|
|
|
struct auxtrace_cache *auxtrace_cache__new(unsigned int bits, size_t entry_size, |
|
unsigned int limit_percent); |
|
void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache); |
|
void *auxtrace_cache__alloc_entry(struct auxtrace_cache *c); |
|
void auxtrace_cache__free_entry(struct auxtrace_cache *c, void *entry); |
|
int auxtrace_cache__add(struct auxtrace_cache *c, u32 key, |
|
struct auxtrace_cache_entry *entry); |
|
void auxtrace_cache__remove(struct auxtrace_cache *c, u32 key); |
|
void *auxtrace_cache__lookup(struct auxtrace_cache *c, u32 key); |
|
|
|
struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, |
|
int *err); |
|
|
|
int auxtrace_parse_snapshot_options(struct auxtrace_record *itr, |
|
struct record_opts *opts, |
|
const char *str); |
|
int auxtrace_parse_sample_options(struct auxtrace_record *itr, |
|
struct evlist *evlist, |
|
struct record_opts *opts, const char *str); |
|
void auxtrace_regroup_aux_output(struct evlist *evlist); |
|
int auxtrace_record__options(struct auxtrace_record *itr, |
|
struct evlist *evlist, |
|
struct record_opts *opts); |
|
size_t auxtrace_record__info_priv_size(struct auxtrace_record *itr, |
|
struct evlist *evlist); |
|
int auxtrace_record__info_fill(struct auxtrace_record *itr, |
|
struct perf_session *session, |
|
struct perf_record_auxtrace_info *auxtrace_info, |
|
size_t priv_size); |
|
void auxtrace_record__free(struct auxtrace_record *itr); |
|
int auxtrace_record__snapshot_start(struct auxtrace_record *itr); |
|
int auxtrace_record__snapshot_finish(struct auxtrace_record *itr, bool on_exit); |
|
int auxtrace_record__find_snapshot(struct auxtrace_record *itr, int idx, |
|
struct auxtrace_mmap *mm, |
|
unsigned char *data, u64 *head, u64 *old); |
|
u64 auxtrace_record__reference(struct auxtrace_record *itr); |
|
int auxtrace_record__read_finish(struct auxtrace_record *itr, int idx); |
|
|
|
int auxtrace_index__auxtrace_event(struct list_head *head, union perf_event *event, |
|
off_t file_offset); |
|
int auxtrace_index__write(int fd, struct list_head *head); |
|
int auxtrace_index__process(int fd, u64 size, struct perf_session *session, |
|
bool needs_swap); |
|
void auxtrace_index__free(struct list_head *head); |
|
|
|
void auxtrace_synth_error(struct perf_record_auxtrace_error *auxtrace_error, int type, |
|
int code, int cpu, pid_t pid, pid_t tid, u64 ip, |
|
const char *msg, u64 timestamp); |
|
|
|
int perf_event__process_auxtrace_info(struct perf_session *session, |
|
union perf_event *event); |
|
s64 perf_event__process_auxtrace(struct perf_session *session, |
|
union perf_event *event); |
|
int perf_event__process_auxtrace_error(struct perf_session *session, |
|
union perf_event *event); |
|
int itrace_do_parse_synth_opts(struct itrace_synth_opts *synth_opts, |
|
const char *str, int unset); |
|
int itrace_parse_synth_opts(const struct option *opt, const char *str, |
|
int unset); |
|
void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts, |
|
bool no_sample); |
|
|
|
size_t perf_event__fprintf_auxtrace_error(union perf_event *event, FILE *fp); |
|
void perf_session__auxtrace_error_inc(struct perf_session *session, |
|
union perf_event *event); |
|
void events_stats__auxtrace_error_warn(const struct events_stats *stats); |
|
|
|
void addr_filters__init(struct addr_filters *filts); |
|
void addr_filters__exit(struct addr_filters *filts); |
|
int addr_filters__parse_bare_filter(struct addr_filters *filts, |
|
const char *filter); |
|
int auxtrace_parse_filters(struct evlist *evlist); |
|
|
|
int auxtrace__process_event(struct perf_session *session, union perf_event *event, |
|
struct perf_sample *sample, struct perf_tool *tool); |
|
void auxtrace__dump_auxtrace_sample(struct perf_session *session, |
|
struct perf_sample *sample); |
|
int auxtrace__flush_events(struct perf_session *session, struct perf_tool *tool); |
|
void auxtrace__free_events(struct perf_session *session); |
|
void auxtrace__free(struct perf_session *session); |
|
bool auxtrace__evsel_is_auxtrace(struct perf_session *session, |
|
struct evsel *evsel); |
|
|
|
#define ITRACE_HELP \ |
|
" i[period]: synthesize instructions events\n" \ |
|
" b: synthesize branches events (branch misses for Arm SPE)\n" \ |
|
" c: synthesize branches events (calls only)\n" \ |
|
" r: synthesize branches events (returns only)\n" \ |
|
" x: synthesize transactions events\n" \ |
|
" w: synthesize ptwrite events\n" \ |
|
" p: synthesize power events\n" \ |
|
" o: synthesize other events recorded due to the use\n" \ |
|
" of aux-output (refer to perf record)\n" \ |
|
" e[flags]: synthesize error events\n" \ |
|
" each flag must be preceded by + or -\n" \ |
|
" error flags are: o (overflow)\n" \ |
|
" l (data lost)\n" \ |
|
" d[flags]: create a debug log\n" \ |
|
" each flag must be preceded by + or -\n" \ |
|
" log flags are: a (all perf events)\n" \ |
|
" o (output to stdout)\n" \ |
|
" f: synthesize first level cache events\n" \ |
|
" m: synthesize last level cache events\n" \ |
|
" t: synthesize TLB events\n" \ |
|
" a: synthesize remote access events\n" \ |
|
" g[len]: synthesize a call chain (use with i or x)\n" \ |
|
" G[len]: synthesize a call chain on existing event records\n" \ |
|
" l[len]: synthesize last branch entries (use with i or x)\n" \ |
|
" L[len]: synthesize last branch entries on existing event records\n" \ |
|
" sNUMBER: skip initial number of events\n" \ |
|
" q: quicker (less detailed) decoding\n" \ |
|
" A: approximate IPC\n" \ |
|
" Z: prefer to ignore timestamps (so-called \"timeless\" decoding)\n" \ |
|
" PERIOD[ns|us|ms|i|t]: specify period to sample stream\n" \ |
|
" concatenate multiple options. Default is ibxwpe or cewp\n" |
|
|
|
static inline |
|
void itrace_synth_opts__set_time_range(struct itrace_synth_opts *opts, |
|
struct perf_time_interval *ptime_range, |
|
int range_num) |
|
{ |
|
opts->ptime_range = ptime_range; |
|
opts->range_num = range_num; |
|
} |
|
|
|
static inline |
|
void itrace_synth_opts__clear_time_range(struct itrace_synth_opts *opts) |
|
{ |
|
opts->ptime_range = NULL; |
|
opts->range_num = 0; |
|
} |
|
|
|
#else |
|
#include "debug.h" |
|
|
|
static inline struct auxtrace_record * |
|
auxtrace_record__init(struct evlist *evlist __maybe_unused, |
|
int *err) |
|
{ |
|
*err = 0; |
|
return NULL; |
|
} |
|
|
|
static inline |
|
void auxtrace_record__free(struct auxtrace_record *itr __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
int auxtrace_record__options(struct auxtrace_record *itr __maybe_unused, |
|
struct evlist *evlist __maybe_unused, |
|
struct record_opts *opts __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline |
|
int perf_event__process_auxtrace_info(struct perf_session *session __maybe_unused, |
|
union perf_event *event __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline |
|
s64 perf_event__process_auxtrace(struct perf_session *session __maybe_unused, |
|
union perf_event *event __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline |
|
int perf_event__process_auxtrace_error(struct perf_session *session __maybe_unused, |
|
union perf_event *event __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline |
|
void perf_session__auxtrace_error_inc(struct perf_session *session |
|
__maybe_unused, |
|
union perf_event *event |
|
__maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
void events_stats__auxtrace_error_warn(const struct events_stats *stats |
|
__maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
int itrace_do_parse_synth_opts(struct itrace_synth_opts *synth_opts __maybe_unused, |
|
const char *str __maybe_unused, int unset __maybe_unused) |
|
{ |
|
pr_err("AUX area tracing not supported\n"); |
|
return -EINVAL; |
|
} |
|
|
|
static inline |
|
int itrace_parse_synth_opts(const struct option *opt __maybe_unused, |
|
const char *str __maybe_unused, |
|
int unset __maybe_unused) |
|
{ |
|
pr_err("AUX area tracing not supported\n"); |
|
return -EINVAL; |
|
} |
|
|
|
static inline |
|
int auxtrace_parse_snapshot_options(struct auxtrace_record *itr __maybe_unused, |
|
struct record_opts *opts __maybe_unused, |
|
const char *str) |
|
{ |
|
if (!str) |
|
return 0; |
|
pr_err("AUX area tracing not supported\n"); |
|
return -EINVAL; |
|
} |
|
|
|
static inline |
|
int auxtrace_parse_sample_options(struct auxtrace_record *itr __maybe_unused, |
|
struct evlist *evlist __maybe_unused, |
|
struct record_opts *opts __maybe_unused, |
|
const char *str) |
|
{ |
|
if (!str) |
|
return 0; |
|
pr_err("AUX area tracing not supported\n"); |
|
return -EINVAL; |
|
} |
|
|
|
static inline |
|
void auxtrace_regroup_aux_output(struct evlist *evlist __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
int auxtrace__process_event(struct perf_session *session __maybe_unused, |
|
union perf_event *event __maybe_unused, |
|
struct perf_sample *sample __maybe_unused, |
|
struct perf_tool *tool __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline |
|
void auxtrace__dump_auxtrace_sample(struct perf_session *session __maybe_unused, |
|
struct perf_sample *sample __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
int auxtrace__flush_events(struct perf_session *session __maybe_unused, |
|
struct perf_tool *tool __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline |
|
void auxtrace__free_events(struct perf_session *session __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
void auxtrace__free(struct perf_session *session __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
int auxtrace_index__write(int fd __maybe_unused, |
|
struct list_head *head __maybe_unused) |
|
{ |
|
return -EINVAL; |
|
} |
|
|
|
static inline |
|
int auxtrace_index__process(int fd __maybe_unused, |
|
u64 size __maybe_unused, |
|
struct perf_session *session __maybe_unused, |
|
bool needs_swap __maybe_unused) |
|
{ |
|
return -EINVAL; |
|
} |
|
|
|
static inline |
|
void auxtrace_index__free(struct list_head *head __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
bool auxtrace__evsel_is_auxtrace(struct perf_session *session __maybe_unused, |
|
struct evsel *evsel __maybe_unused) |
|
{ |
|
return false; |
|
} |
|
|
|
static inline |
|
int auxtrace_parse_filters(struct evlist *evlist __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, |
|
struct auxtrace_mmap_params *mp, |
|
void *userpg, int fd); |
|
void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); |
|
void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, |
|
off_t auxtrace_offset, |
|
unsigned int auxtrace_pages, |
|
bool auxtrace_overwrite); |
|
void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, |
|
struct evlist *evlist, int idx, |
|
bool per_cpu); |
|
|
|
#define ITRACE_HELP "" |
|
|
|
static inline |
|
void itrace_synth_opts__set_time_range(struct itrace_synth_opts *opts |
|
__maybe_unused, |
|
struct perf_time_interval *ptime_range |
|
__maybe_unused, |
|
int range_num __maybe_unused) |
|
{ |
|
} |
|
|
|
static inline |
|
void itrace_synth_opts__clear_time_range(struct itrace_synth_opts *opts |
|
__maybe_unused) |
|
{ |
|
} |
|
|
|
#endif |
|
|
|
#endif
|
|
|