diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/event.h | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h new file mode 100644 index 000000000..b828b9917 --- /dev/null +++ b/tools/perf/util/event.h @@ -0,0 +1,411 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_RECORD_H +#define __PERF_RECORD_H +/* + * The linux/stddef.h isn't need here, but is needed for __always_inline used + * in files included from uapi/linux/perf_event.h such as + * /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h, + * detected in at least musl libc, used in Alpine Linux. -acme + */ +#include <stdio.h> +#include <linux/stddef.h> +#include <perf/event.h> +#include <linux/types.h> + +#include "perf_regs.h" + +struct dso; +struct machine; +struct perf_event_attr; + +#ifdef __LP64__ +/* + * /usr/include/inttypes.h uses just 'lu' for PRIu64, but we end up defining + * __u64 as long long unsigned int, and then -Werror=format= kicks in and + * complains of the mismatched types, so use these two special extra PRI + * macros to overcome that. + */ +#define PRI_lu64 "l" PRIu64 +#define PRI_lx64 "l" PRIx64 +#define PRI_ld64 "l" PRId64 +#else +#define PRI_lu64 PRIu64 +#define PRI_lx64 PRIx64 +#define PRI_ld64 PRId64 +#endif + +#define PERF_SAMPLE_MASK \ + (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \ + PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \ + PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \ + PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \ + PERF_SAMPLE_IDENTIFIER) + +/* perf sample has 16 bits size limit */ +#define PERF_SAMPLE_MAX_SIZE (1 << 16) + +struct regs_dump { + u64 abi; + u64 mask; + u64 *regs; + + /* Cached values/mask filled by first register access. */ + u64 cache_regs[PERF_REGS_MAX]; + u64 cache_mask; +}; + +struct stack_dump { + u16 offset; + u64 size; + char *data; +}; + +struct sample_read_value { + u64 value; + u64 id; +}; + +struct sample_read { + u64 time_enabled; + u64 time_running; + union { + struct { + u64 nr; + struct sample_read_value *values; + } group; + struct sample_read_value one; + }; +}; + +struct ip_callchain { + u64 nr; + u64 ips[]; +}; + +struct branch_stack; + +enum { + PERF_IP_FLAG_BRANCH = 1ULL << 0, + PERF_IP_FLAG_CALL = 1ULL << 1, + PERF_IP_FLAG_RETURN = 1ULL << 2, + PERF_IP_FLAG_CONDITIONAL = 1ULL << 3, + PERF_IP_FLAG_SYSCALLRET = 1ULL << 4, + PERF_IP_FLAG_ASYNC = 1ULL << 5, + PERF_IP_FLAG_INTERRUPT = 1ULL << 6, + PERF_IP_FLAG_TX_ABORT = 1ULL << 7, + PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8, + PERF_IP_FLAG_TRACE_END = 1ULL << 9, + PERF_IP_FLAG_IN_TX = 1ULL << 10, +}; + +#define PERF_IP_FLAG_CHARS "bcrosyiABEx" + +#define PERF_BRANCH_MASK (\ + PERF_IP_FLAG_BRANCH |\ + PERF_IP_FLAG_CALL |\ + PERF_IP_FLAG_RETURN |\ + PERF_IP_FLAG_CONDITIONAL |\ + PERF_IP_FLAG_SYSCALLRET |\ + PERF_IP_FLAG_ASYNC |\ + PERF_IP_FLAG_INTERRUPT |\ + PERF_IP_FLAG_TX_ABORT |\ + PERF_IP_FLAG_TRACE_BEGIN |\ + PERF_IP_FLAG_TRACE_END) + +#define MAX_INSN 16 + +struct aux_sample { + u64 size; + void *data; +}; + +struct perf_sample { + u64 ip; + u32 pid, tid; + u64 time; + u64 addr; + u64 id; + u64 stream_id; + u64 period; + u64 weight; + u64 transaction; + u64 insn_cnt; + u64 cyc_cnt; + u32 cpu; + u32 raw_size; + u64 data_src; + u64 phys_addr; + u64 cgroup; + u32 flags; + u16 insn_len; + u8 cpumode; + u16 misc; + bool no_hw_idx; /* No hw_idx collected in branch_stack */ + char insn[MAX_INSN]; + void *raw_data; + struct ip_callchain *callchain; + struct branch_stack *branch_stack; + struct regs_dump user_regs; + struct regs_dump intr_regs; + struct stack_dump user_stack; + struct sample_read read; + struct aux_sample aux_sample; +}; + +#define PERF_MEM_DATA_SRC_NONE \ + (PERF_MEM_S(OP, NA) |\ + PERF_MEM_S(LVL, NA) |\ + PERF_MEM_S(SNOOP, NA) |\ + PERF_MEM_S(LOCK, NA) |\ + PERF_MEM_S(TLB, NA)) + +/* Attribute type for custom synthesized events */ +#define PERF_TYPE_SYNTH (INT_MAX + 1U) + +/* Attribute config for custom synthesized events */ +enum perf_synth_id { + PERF_SYNTH_INTEL_PTWRITE, + PERF_SYNTH_INTEL_MWAIT, + PERF_SYNTH_INTEL_PWRE, + PERF_SYNTH_INTEL_EXSTOP, + PERF_SYNTH_INTEL_PWRX, + PERF_SYNTH_INTEL_CBR, +}; + +/* + * Raw data formats for synthesized events. Note that 4 bytes of padding are + * present to match the 'size' member of PERF_SAMPLE_RAW data which is always + * 8-byte aligned. That means we must dereference raw_data with an offset of 4. + * Refer perf_sample__synth_ptr() and perf_synth__raw_data(). It also means the + * structure sizes are 4 bytes bigger than the raw_size, refer + * perf_synth__raw_size(). + */ + +struct perf_synth_intel_ptwrite { + u32 padding; + union { + struct { + u32 ip : 1, + reserved : 31; + }; + u32 flags; + }; + u64 payload; +}; + +struct perf_synth_intel_mwait { + u32 padding; + u32 reserved; + union { + struct { + u64 hints : 8, + reserved1 : 24, + extensions : 2, + reserved2 : 30; + }; + u64 payload; + }; +}; + +struct perf_synth_intel_pwre { + u32 padding; + u32 reserved; + union { + struct { + u64 reserved1 : 7, + hw : 1, + subcstate : 4, + cstate : 4, + reserved2 : 48; + }; + u64 payload; + }; +}; + +struct perf_synth_intel_exstop { + u32 padding; + union { + struct { + u32 ip : 1, + reserved : 31; + }; + u32 flags; + }; +}; + +struct perf_synth_intel_pwrx { + u32 padding; + u32 reserved; + union { + struct { + u64 deepest_cstate : 4, + last_cstate : 4, + wake_reason : 4, + reserved1 : 52; + }; + u64 payload; + }; +}; + +struct perf_synth_intel_cbr { + u32 padding; + union { + struct { + u32 cbr : 8, + reserved1 : 8, + max_nonturbo : 8, + reserved2 : 8; + }; + u32 flags; + }; + u32 freq; + u32 reserved3; +}; + +/* + * raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get + * 8-byte alignment. + */ +static inline void *perf_sample__synth_ptr(struct perf_sample *sample) +{ + return sample->raw_data - 4; +} + +static inline void *perf_synth__raw_data(void *p) +{ + return p + 4; +} + +#define perf_synth__raw_size(d) (sizeof(d) - 4) + +#define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4) + +enum { + PERF_STAT_ROUND_TYPE__INTERVAL = 0, + PERF_STAT_ROUND_TYPE__FINAL = 1, +}; + +void perf_event__print_totals(void); + +struct perf_cpu_map; +struct perf_record_stat_config; +struct perf_stat_config; +struct perf_tool; + +void perf_event__read_stat_config(struct perf_stat_config *config, + struct perf_record_stat_config *event); + +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_cgroup(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_ksymbol(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine); +int perf_event__process_bpf(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine); +int perf_event__process_text_poke(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__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_cgroup(union perf_event *event, FILE *fp); +size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp); +size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp); +size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine,FILE *fp); +size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp); + +int kallsyms__get_function_start(const char *kallsyms_filename, + const char *symbol_name, u64 *addr); + +void *cpu_map_data__alloc(struct perf_cpu_map *map, size_t *size, u16 *type, int *max); +void cpu_map_data__synthesize(struct perf_record_cpu_map_data *data, struct perf_cpu_map *map, + u16 type, int max); + +void event_attr_init(struct perf_event_attr *attr); + +int perf_event_paranoid(void); +bool perf_event_paranoid_check(int max_level); + +extern int sysctl_perf_event_max_stack; +extern int sysctl_perf_event_max_contexts_per_stack; +extern unsigned int proc_map_timeout; + +#endif /* __PERF_RECORD_H */ |