394 lines
9.7 KiB
C
394 lines
9.7 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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/*
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* The linux/stddef.h isn't need here, but is needed for __always_inline used
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* in files included from uapi/linux/perf_event.h such as
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* /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h,
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* detected in at least musl libc, used in Alpine Linux. -acme
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*/
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#include <stdio.h>
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#include <linux/stddef.h>
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#include <perf/event.h>
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#include <linux/types.h>
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#include "perf_regs.h"
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struct dso;
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struct machine;
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struct perf_event_attr;
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#ifdef __LP64__
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/*
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* /usr/include/inttypes.h uses just 'lu' for PRIu64, but we end up defining
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* __u64 as long long unsigned int, and then -Werror=format= kicks in and
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* complains of the mismatched types, so use these two special extra PRI
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* macros to overcome that.
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*/
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#define PRI_lu64 "l" PRIu64
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#define PRI_lx64 "l" PRIx64
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#define PRI_ld64 "l" PRId64
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#else
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#define PRI_lu64 PRIu64
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#define PRI_lx64 PRIx64
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#define PRI_ld64 PRId64
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#endif
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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 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_stack;
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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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u64 insn_cnt;
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u64 cyc_cnt;
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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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/* 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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enum {
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PERF_STAT_ROUND_TYPE__INTERVAL = 0,
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PERF_STAT_ROUND_TYPE__FINAL = 1,
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};
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void perf_event__print_totals(void);
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struct perf_cpu_map;
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struct perf_record_stat_config;
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struct perf_stat_config;
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struct perf_tool;
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void perf_event__read_stat_config(struct perf_stat_config *config,
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struct perf_record_stat_config *event);
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int perf_event__process_comm(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_lost(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_lost_samples(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_aux(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_itrace_start(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_switch(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_namespaces(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_mmap(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_mmap2(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_fork(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_exit(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_ksymbol(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process_bpf(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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int perf_event__process(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine);
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struct addr_location;
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int machine__resolve(struct machine *machine, struct addr_location *al,
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struct perf_sample *sample);
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void addr_location__put(struct addr_location *al);
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struct thread;
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bool is_bts_event(struct perf_event_attr *attr);
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bool sample_addr_correlates_sym(struct perf_event_attr *attr);
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void thread__resolve(struct thread *thread, struct addr_location *al,
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struct perf_sample *sample);
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const char *perf_event__name(unsigned int id);
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size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf(union perf_event *event, FILE *fp);
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int kallsyms__get_function_start(const char *kallsyms_filename,
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const char *symbol_name, u64 *addr);
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void *cpu_map_data__alloc(struct perf_cpu_map *map, size_t *size, u16 *type, int *max);
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void cpu_map_data__synthesize(struct perf_record_cpu_map_data *data, struct perf_cpu_map *map,
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u16 type, int max);
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void event_attr_init(struct perf_event_attr *attr);
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int perf_event_paranoid(void);
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bool perf_event_paranoid_check(int max_level);
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extern int sysctl_perf_event_max_stack;
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extern int sysctl_perf_event_max_contexts_per_stack;
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extern unsigned int proc_map_timeout;
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#endif /* __PERF_RECORD_H */
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