path: root/tools/perf/util/parse-events.c

#include "../../../include/linux/hw_breakpoint.h"
#include "util.h"
#include "../perf.h"
#include "evlist.h"
#include "evsel.h"
#include "parse-options.h"
#include "parse-events.h"
#include "exec_cmd.h"
#include "string.h"
#include "symbol.h"
#include "cache.h"
#include "header.h"
#include "debugfs.h"
#include "parse-events-bison.h"
#define YY_EXTRA_TYPE int
#include "parse-events-flex.h"
#include "pmu.h"

#define MAX_NAME_LEN 100

struct event_symbol {
	const char	*symbol;
	const char	*alias;
};

#ifdef PARSER_DEBUG
extern int parse_events_debug;
#endif
int parse_events_parse(void *data, void *scanner);

static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
	[PERF_COUNT_HW_CPU_CYCLES] = {
		.symbol = "cpu-cycles",
		.alias  = "cycles",
	},
	[PERF_COUNT_HW_INSTRUCTIONS] = {
		.symbol = "instructions",
		.alias  = "",
	},
	[PERF_COUNT_HW_CACHE_REFERENCES] = {
		.symbol = "cache-references",
		.alias  = "",
	},
	[PERF_COUNT_HW_CACHE_MISSES] = {
		.symbol = "cache-misses",
		.alias  = "",
	},
	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
		.symbol = "branch-instructions",
		.alias  = "branches",
	},
	[PERF_COUNT_HW_BRANCH_MISSES] = {
		.symbol = "branch-misses",
		.alias  = "",
	},
	[PERF_COUNT_HW_BUS_CYCLES] = {
		.symbol = "bus-cycles",
		.alias  = "",
	},
	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
		.symbol = "stalled-cycles-frontend",
		.alias  = "idle-cycles-frontend",
	},
	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
		.symbol = "stalled-cycles-backend",
		.alias  = "idle-cycles-backend",
	},
	[PERF_COUNT_HW_REF_CPU_CYCLES] = {
		.symbol = "ref-cycles",
		.alias  = "",
	},
};

static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
	[PERF_COUNT_SW_CPU_CLOCK] = {
		.symbol = "cpu-clock",
		.alias  = "",
	},
	[PERF_COUNT_SW_TASK_CLOCK] = {
		.symbol = "task-clock",
		.alias  = "",
	},
	[PERF_COUNT_SW_PAGE_FAULTS] = {
		.symbol = "page-faults",
		.alias  = "faults",
	},
	[PERF_COUNT_SW_CONTEXT_SWITCHES] = {
		.symbol = "context-switches",
		.alias  = "cs",
	},
	[PERF_COUNT_SW_CPU_MIGRATIONS] = {
		.symbol = "cpu-migrations",
		.alias  = "migrations",
	},
	[PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
		.symbol = "minor-faults",
		.alias  = "",
	},
	[PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
		.symbol = "major-faults",
		.alias  = "",
	},
	[PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
		.symbol = "alignment-faults",
		.alias  = "",
	},
	[PERF_COUNT_SW_EMULATION_FAULTS] = {
		.symbol = "emulation-faults",
		.alias  = "",
	},
};

#define __PERF_EVENT_FIELD(config, name) \
	((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)

#define PERF_EVENT_RAW(config)		__PERF_EVENT_FIELD(config, RAW)
#define PERF_EVENT_CONFIG(config)	__PERF_EVENT_FIELD(config, CONFIG)
#define PERF_EVENT_TYPE(config)		__PERF_EVENT_FIELD(config, TYPE)
#define PERF_EVENT_ID(config)		__PERF_EVENT_FIELD(config, EVENT)

#define for_each_subsystem(sys_dir, sys_dirent, sys_next)	       \
	while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next)	       \
	if (sys_dirent.d_type == DT_DIR &&				       \
	   (strcmp(sys_dirent.d_name, ".")) &&				       \
	   (strcmp(sys_dirent.d_name, "..")))

static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
{
	char evt_path[MAXPATHLEN];
	int fd;

	snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
			sys_dir->d_name, evt_dir->d_name);
	fd = open(evt_path, O_RDONLY);
	if (fd < 0)
		return -EINVAL;
	close(fd);<