826 lines
19 KiB
C
826 lines
19 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_RECORD_H
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#define __PERF_RECORD_H
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#include <limits.h>
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#include <stdio.h>
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#include <linux/kernel.h>
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#include "../perf.h"
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#include "build-id.h"
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#include "perf_regs.h"
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struct mmap_event {
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struct perf_event_header header;
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u32 pid, tid;
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u64 start;
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u64 len;
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u64 pgoff;
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char filename[PATH_MAX];
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};
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struct mmap2_event {
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struct perf_event_header header;
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u32 pid, tid;
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u64 start;
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u64 len;
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u64 pgoff;
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u32 maj;
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u32 min;
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u64 ino;
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u64 ino_generation;
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u32 prot;
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u32 flags;
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char filename[PATH_MAX];
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};
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struct comm_event {
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struct perf_event_header header;
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u32 pid, tid;
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char comm[16];
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};
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struct namespaces_event {
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struct perf_event_header header;
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u32 pid, tid;
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u64 nr_namespaces;
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struct perf_ns_link_info link_info[];
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};
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struct fork_event {
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struct perf_event_header header;
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u32 pid, ppid;
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u32 tid, ptid;
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u64 time;
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};
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struct lost_event {
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struct perf_event_header header;
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u64 id;
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u64 lost;
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};
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struct lost_samples_event {
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struct perf_event_header header;
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u64 lost;
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};
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/*
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* PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
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*/
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struct read_event {
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struct perf_event_header header;
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u32 pid, tid;
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u64 value;
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u64 time_enabled;
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u64 time_running;
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u64 id;
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};
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struct throttle_event {
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struct perf_event_header header;
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u64 time;
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u64 id;
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u64 stream_id;
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};
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#define PERF_SAMPLE_MASK \
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(PERF_SAMPLE_IP | PERF_SAMPLE_TID | \
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PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \
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PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \
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PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \
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PERF_SAMPLE_IDENTIFIER)
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/* perf sample has 16 bits size limit */
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#define PERF_SAMPLE_MAX_SIZE (1 << 16)
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struct sample_event {
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struct perf_event_header header;
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u64 array[];
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};
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struct regs_dump {
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u64 abi;
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u64 mask;
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u64 *regs;
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/* Cached values/mask filled by first register access. */
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u64 cache_regs[PERF_REGS_MAX];
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u64 cache_mask;
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};
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struct stack_dump {
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u16 offset;
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u64 size;
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char *data;
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};
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struct sample_read_value {
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u64 value;
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u64 id;
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};
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struct sample_read {
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u64 time_enabled;
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u64 time_running;
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union {
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struct {
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u64 nr;
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struct sample_read_value *values;
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} group;
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struct sample_read_value one;
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};
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};
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struct ip_callchain {
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u64 nr;
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u64 ips[0];
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};
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struct branch_flags {
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u64 mispred:1;
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u64 predicted:1;
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u64 in_tx:1;
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u64 abort:1;
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u64 cycles:16;
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u64 type:4;
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u64 reserved:40;
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};
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struct branch_entry {
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u64 from;
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u64 to;
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struct branch_flags flags;
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};
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struct branch_stack {
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u64 nr;
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struct branch_entry entries[0];
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};
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enum {
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PERF_IP_FLAG_BRANCH = 1ULL << 0,
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PERF_IP_FLAG_CALL = 1ULL << 1,
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PERF_IP_FLAG_RETURN = 1ULL << 2,
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PERF_IP_FLAG_CONDITIONAL = 1ULL << 3,
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PERF_IP_FLAG_SYSCALLRET = 1ULL << 4,
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PERF_IP_FLAG_ASYNC = 1ULL << 5,
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PERF_IP_FLAG_INTERRUPT = 1ULL << 6,
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PERF_IP_FLAG_TX_ABORT = 1ULL << 7,
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PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8,
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PERF_IP_FLAG_TRACE_END = 1ULL << 9,
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PERF_IP_FLAG_IN_TX = 1ULL << 10,
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};
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#define PERF_IP_FLAG_CHARS "bcrosyiABEx"
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#define PERF_BRANCH_MASK (\
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PERF_IP_FLAG_BRANCH |\
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PERF_IP_FLAG_CALL |\
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PERF_IP_FLAG_RETURN |\
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PERF_IP_FLAG_CONDITIONAL |\
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PERF_IP_FLAG_SYSCALLRET |\
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PERF_IP_FLAG_ASYNC |\
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PERF_IP_FLAG_INTERRUPT |\
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PERF_IP_FLAG_TX_ABORT |\
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PERF_IP_FLAG_TRACE_BEGIN |\
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PERF_IP_FLAG_TRACE_END)
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#define MAX_INSN 16
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struct perf_sample {
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u64 ip;
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u32 pid, tid;
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u64 time;
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u64 addr;
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u64 id;
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u64 stream_id;
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u64 period;
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u64 weight;
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u64 transaction;
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u32 cpu;
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u32 raw_size;
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u64 data_src;
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u64 phys_addr;
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u32 flags;
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u16 insn_len;
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u8 cpumode;
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u16 misc;
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char insn[MAX_INSN];
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void *raw_data;
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struct ip_callchain *callchain;
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struct branch_stack *branch_stack;
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struct regs_dump user_regs;
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struct regs_dump intr_regs;
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struct stack_dump user_stack;
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struct sample_read read;
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};
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#define PERF_MEM_DATA_SRC_NONE \
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(PERF_MEM_S(OP, NA) |\
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PERF_MEM_S(LVL, NA) |\
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PERF_MEM_S(SNOOP, NA) |\
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PERF_MEM_S(LOCK, NA) |\
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PERF_MEM_S(TLB, NA))
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struct build_id_event {
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struct perf_event_header header;
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pid_t pid;
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u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
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char filename[];
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};
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enum perf_user_event_type { /* above any possible kernel type */
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PERF_RECORD_USER_TYPE_START = 64,
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PERF_RECORD_HEADER_ATTR = 64,
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PERF_RECORD_HEADER_EVENT_TYPE = 65, /* deprecated */
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PERF_RECORD_HEADER_TRACING_DATA = 66,
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PERF_RECORD_HEADER_BUILD_ID = 67,
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PERF_RECORD_FINISHED_ROUND = 68,
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PERF_RECORD_ID_INDEX = 69,
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PERF_RECORD_AUXTRACE_INFO = 70,
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PERF_RECORD_AUXTRACE = 71,
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PERF_RECORD_AUXTRACE_ERROR = 72,
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PERF_RECORD_THREAD_MAP = 73,
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PERF_RECORD_CPU_MAP = 74,
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PERF_RECORD_STAT_CONFIG = 75,
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PERF_RECORD_STAT = 76,
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PERF_RECORD_STAT_ROUND = 77,
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PERF_RECORD_EVENT_UPDATE = 78,
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PERF_RECORD_TIME_CONV = 79,
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PERF_RECORD_HEADER_FEATURE = 80,
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PERF_RECORD_HEADER_MAX
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};
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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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/* Attribute type for custom synthesized events */
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#define PERF_TYPE_SYNTH (INT_MAX + 1U)
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/* Attribute config for custom synthesized events */
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enum perf_synth_id {
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PERF_SYNTH_INTEL_PTWRITE,
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PERF_SYNTH_INTEL_MWAIT,
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PERF_SYNTH_INTEL_PWRE,
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PERF_SYNTH_INTEL_EXSTOP,
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PERF_SYNTH_INTEL_PWRX,
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PERF_SYNTH_INTEL_CBR,
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};
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/*
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* Raw data formats for synthesized events. Note that 4 bytes of padding are
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* present to match the 'size' member of PERF_SAMPLE_RAW data which is always
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* 8-byte aligned. That means we must dereference raw_data with an offset of 4.
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* Refer perf_sample__synth_ptr() and perf_synth__raw_data(). It also means the
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* structure sizes are 4 bytes bigger than the raw_size, refer
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* perf_synth__raw_size().
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*/
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struct perf_synth_intel_ptwrite {
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u32 padding;
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union {
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struct {
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u32 ip : 1,
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reserved : 31;
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};
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u32 flags;
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};
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u64 payload;
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};
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struct perf_synth_intel_mwait {
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u32 padding;
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u32 reserved;
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union {
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struct {
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u64 hints : 8,
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reserved1 : 24,
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extensions : 2,
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reserved2 : 30;
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};
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u64 payload;
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};
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};
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struct perf_synth_intel_pwre {
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u32 padding;
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u32 reserved;
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union {
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struct {
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u64 reserved1 : 7,
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hw : 1,
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subcstate : 4,
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cstate : 4,
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reserved2 : 48;
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};
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u64 payload;
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};
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};
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struct perf_synth_intel_exstop {
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u32 padding;
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union {
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struct {
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u32 ip : 1,
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reserved : 31;
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};
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u32 flags;
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};
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};
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struct perf_synth_intel_pwrx {
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u32 padding;
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u32 reserved;
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union {
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struct {
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u64 deepest_cstate : 4,
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last_cstate : 4,
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wake_reason : 4,
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reserved1 : 52;
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};
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u64 payload;
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};
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};
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struct perf_synth_intel_cbr {
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u32 padding;
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union {
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struct {
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u32 cbr : 8,
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reserved1 : 8,
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max_nonturbo : 8,
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reserved2 : 8;
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};
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u32 flags;
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};
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u32 freq;
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u32 reserved3;
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};
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/*
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* raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get
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* 8-byte alignment.
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*/
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static inline void *perf_sample__synth_ptr(struct perf_sample *sample)
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{
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return sample->raw_data - 4;
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}
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static inline void *perf_synth__raw_data(void *p)
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{
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return p + 4;
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}
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#define perf_synth__raw_size(d) (sizeof(d) - 4)
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#define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4)
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/*
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* The kernel collects the number of events it couldn't send in a stretch and
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* when possible sends this number in a PERF_RECORD_LOST event. The number of
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* such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
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* total_lost tells exactly how many events the kernel in fact lost, i.e. it is
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* the sum of all struct lost_event.lost fields reported.
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*
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* The kernel discards mixed up samples and sends the number in a
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* PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored
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* in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells
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* exactly how many samples the kernel in fact dropped, i.e. it is the sum of
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* all struct lost_samples_event.lost fields reported.
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*
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* The total_period is needed because by default auto-freq is used, so
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* multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
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* the total number of low level events, it is necessary to to sum all struct
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* sample_event.period and stash the result in total_period.
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*/
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struct events_stats {
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u64 total_period;
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u64 total_non_filtered_period;
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u64 total_lost;
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u64 total_lost_samples;
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u64 total_aux_lost;
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u64 total_aux_partial;
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u64 total_invalid_chains;
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u32 nr_events[PERF_RECORD_HEADER_MAX];
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u32 nr_non_filtered_samples;
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u32 nr_lost_warned;
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u32 nr_unknown_events;
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u32 nr_invalid_chains;
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u32 nr_unknown_id;
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u32 nr_unprocessable_samples;
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u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX];
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u32 nr_proc_map_timeout;
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};
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enum {
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PERF_CPU_MAP__CPUS = 0,
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PERF_CPU_MAP__MASK = 1,
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};
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struct cpu_map_entries {
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u16 nr;
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u16 cpu[];
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};
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struct cpu_map_mask {
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u16 nr;
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u16 long_size;
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unsigned long mask[];
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};
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struct cpu_map_data {
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u16 type;
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char data[];
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};
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struct cpu_map_event {
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struct perf_event_header header;
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struct cpu_map_data data;
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};
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struct attr_event {
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struct perf_event_header header;
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struct perf_event_attr attr;
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u64 id[];
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};
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enum {
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PERF_EVENT_UPDATE__UNIT = 0,
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PERF_EVENT_UPDATE__SCALE = 1,
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PERF_EVENT_UPDATE__NAME = 2,
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PERF_EVENT_UPDATE__CPUS = 3,
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};
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struct event_update_event_cpus {
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struct cpu_map_data cpus;
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};
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struct event_update_event_scale {
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double scale;
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};
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struct event_update_event {
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struct perf_event_header header;
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u64 type;
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u64 id;
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char data[];
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};
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#define MAX_EVENT_NAME 64
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struct perf_trace_event_type {
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u64 event_id;
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char name[MAX_EVENT_NAME];
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};
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struct event_type_event {
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struct perf_event_header header;
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struct perf_trace_event_type event_type;
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};
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struct tracing_data_event {
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struct perf_event_header header;
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u32 size;
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};
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struct id_index_entry {
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u64 id;
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u64 idx;
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u64 cpu;
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u64 tid;
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};
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struct id_index_event {
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struct perf_event_header header;
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u64 nr;
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struct id_index_entry entries[0];
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};
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struct auxtrace_info_event {
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struct perf_event_header header;
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u32 type;
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u32 reserved__; /* For alignment */
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u64 priv[];
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};
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struct auxtrace_event {
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struct perf_event_header header;
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u64 size;
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u64 offset;
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u64 reference;
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u32 idx;
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u32 tid;
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u32 cpu;
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u32 reserved__; /* For alignment */
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};
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#define MAX_AUXTRACE_ERROR_MSG 64
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struct auxtrace_error_event {
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struct perf_event_header header;
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u32 type;
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u32 code;
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u32 cpu;
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u32 pid;
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u32 tid;
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u32 reserved__; /* For alignment */
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u64 ip;
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char msg[MAX_AUXTRACE_ERROR_MSG];
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};
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struct aux_event {
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struct perf_event_header header;
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u64 aux_offset;
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u64 aux_size;
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u64 flags;
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};
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struct itrace_start_event {
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struct perf_event_header header;
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u32 pid, tid;
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};
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struct context_switch_event {
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struct perf_event_header header;
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u32 next_prev_pid;
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u32 next_prev_tid;
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};
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struct thread_map_event_entry {
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u64 pid;
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char comm[16];
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};
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struct thread_map_event {
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struct perf_event_header header;
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u64 nr;
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struct thread_map_event_entry entries[];
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};
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enum {
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PERF_STAT_CONFIG_TERM__AGGR_MODE = 0,
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PERF_STAT_CONFIG_TERM__INTERVAL = 1,
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PERF_STAT_CONFIG_TERM__SCALE = 2,
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PERF_STAT_CONFIG_TERM__MAX = 3,
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};
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struct stat_config_event_entry {
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u64 tag;
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u64 val;
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};
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struct stat_config_event {
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struct perf_event_header header;
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u64 nr;
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struct stat_config_event_entry data[];
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};
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struct stat_event {
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struct perf_event_header header;
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u64 id;
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u32 cpu;
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u32 thread;
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union {
|
|
struct {
|
|
u64 val;
|
|
u64 ena;
|
|
u64 run;
|
|
};
|
|
u64 values[3];
|
|
};
|
|
};
|
|
|
|
enum {
|
|
PERF_STAT_ROUND_TYPE__INTERVAL = 0,
|
|
PERF_STAT_ROUND_TYPE__FINAL = 1,
|
|
};
|
|
|
|
struct stat_round_event {
|
|
struct perf_event_header header;
|
|
u64 type;
|
|
u64 time;
|
|
};
|
|
|
|
struct time_conv_event {
|
|
struct perf_event_header header;
|
|
u64 time_shift;
|
|
u64 time_mult;
|
|
u64 time_zero;
|
|
};
|
|
|
|
struct feature_event {
|
|
struct perf_event_header header;
|
|
u64 feat_id;
|
|
char data[];
|
|
};
|
|
|
|
union perf_event {
|
|
struct perf_event_header header;
|
|
struct mmap_event mmap;
|
|
struct mmap2_event mmap2;
|
|
struct comm_event comm;
|
|
struct namespaces_event namespaces;
|
|
struct fork_event fork;
|
|
struct lost_event lost;
|
|
struct lost_samples_event lost_samples;
|
|
struct read_event read;
|
|
struct throttle_event throttle;
|
|
struct sample_event sample;
|
|
struct attr_event attr;
|
|
struct event_update_event event_update;
|
|
struct event_type_event event_type;
|
|
struct tracing_data_event tracing_data;
|
|
struct build_id_event build_id;
|
|
struct id_index_event id_index;
|
|
struct auxtrace_info_event auxtrace_info;
|
|
struct auxtrace_event auxtrace;
|
|
struct auxtrace_error_event auxtrace_error;
|
|
struct aux_event aux;
|
|
struct itrace_start_event itrace_start;
|
|
struct context_switch_event context_switch;
|
|
struct thread_map_event thread_map;
|
|
struct cpu_map_event cpu_map;
|
|
struct stat_config_event stat_config;
|
|
struct stat_event stat;
|
|
struct stat_round_event stat_round;
|
|
struct time_conv_event time_conv;
|
|
struct feature_event feat;
|
|
};
|
|
|
|
void perf_event__print_totals(void);
|
|
|
|
struct perf_tool;
|
|
struct thread_map;
|
|
struct cpu_map;
|
|
struct perf_stat_config;
|
|
struct perf_counts_values;
|
|
|
|
typedef int (*perf_event__handler_t)(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
|
|
int perf_event__synthesize_thread_map(struct perf_tool *tool,
|
|
struct thread_map *threads,
|
|
perf_event__handler_t process,
|
|
struct machine *machine, bool mmap_data,
|
|
unsigned int proc_map_timeout);
|
|
int perf_event__synthesize_thread_map2(struct perf_tool *tool,
|
|
struct thread_map *threads,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__synthesize_cpu_map(struct perf_tool *tool,
|
|
struct cpu_map *cpus,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__synthesize_threads(struct perf_tool *tool,
|
|
perf_event__handler_t process,
|
|
struct machine *machine, bool mmap_data,
|
|
unsigned int proc_map_timeout,
|
|
unsigned int nr_threads_synthesize);
|
|
int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__synthesize_stat_config(struct perf_tool *tool,
|
|
struct perf_stat_config *config,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
void perf_event__read_stat_config(struct perf_stat_config *config,
|
|
struct stat_config_event *event);
|
|
int perf_event__synthesize_stat(struct perf_tool *tool,
|
|
u32 cpu, u32 thread, u64 id,
|
|
struct perf_counts_values *count,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__synthesize_stat_round(struct perf_tool *tool,
|
|
u64 time, u64 type,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
int perf_event__synthesize_modules(struct perf_tool *tool,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
|
|
int perf_event__process_comm(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_lost(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_lost_samples(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_aux(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_itrace_start(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_switch(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_namespaces(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_mmap(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_mmap2(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_fork(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process_exit(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
int perf_event__process(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
struct perf_sample *sample,
|
|
struct machine *machine);
|
|
|
|
struct addr_location;
|
|
|
|
int machine__resolve(struct machine *machine, struct addr_location *al,
|
|
struct perf_sample *sample);
|
|
|
|
void addr_location__put(struct addr_location *al);
|
|
|
|
struct thread;
|
|
|
|
bool is_bts_event(struct perf_event_attr *attr);
|
|
bool sample_addr_correlates_sym(struct perf_event_attr *attr);
|
|
void thread__resolve(struct thread *thread, struct addr_location *al,
|
|
struct perf_sample *sample);
|
|
|
|
const char *perf_event__name(unsigned int id);
|
|
|
|
size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
|
|
u64 read_format);
|
|
int perf_event__synthesize_sample(union perf_event *event, u64 type,
|
|
u64 read_format,
|
|
const struct perf_sample *sample);
|
|
|
|
pid_t perf_event__synthesize_comm(struct perf_tool *tool,
|
|
union perf_event *event, pid_t pid,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
|
|
int perf_event__synthesize_namespaces(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
pid_t pid, pid_t tgid,
|
|
perf_event__handler_t process,
|
|
struct machine *machine);
|
|
|
|
int perf_event__synthesize_mmap_events(struct perf_tool *tool,
|
|
union perf_event *event,
|
|
pid_t pid, pid_t tgid,
|
|
perf_event__handler_t process,
|
|
struct machine *machine,
|
|
bool mmap_data,
|
|
unsigned int proc_map_timeout);
|
|
|
|
size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
|
|
size_t perf_event__fprintf(union perf_event *event, FILE *fp);
|
|
|
|
int kallsyms__get_function_start(const char *kallsyms_filename,
|
|
const char *symbol_name, u64 *addr);
|
|
|
|
void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
|
|
void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
|
|
u16 type, int max);
|
|
|
|
void event_attr_init(struct perf_event_attr *attr);
|
|
|
|
int perf_event_paranoid(void);
|
|
|
|
extern int sysctl_perf_event_max_stack;
|
|
extern int sysctl_perf_event_max_contexts_per_stack;
|
|
|
|
#endif /* __PERF_RECORD_H */
|