Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0
#include <linux/hw_breakpoint.h>
#include <linux/err.h>
#include <linux/zalloc.h>
#include <dirent.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/param.h>
#include "term.h"
#include "build-id.h"
#include "evlist.h"
#include "evsel.h"
#include <subcmd/pager.h>
#include <subcmd/parse-options.h>
#include "parse-events.h"
#include <subcmd/exec-cmd.h>
#include "string2.h"
#include "strlist.h"
#include "symbol.h"
#include "header.h"
#include "bpf-loader.h"
#include "debug.h"
#include <api/fs/tracing_path.h>
#include <perf/cpumap.h>
#include "parse-events-bison.h"
#define YY_EXTRA_TYPE void*
#include "parse-events-flex.h"
#include "pmu.h"
#include "thread_map.h"
#include "probe-file.h"
#include "asm/bug.h"
#include "util/parse-branch-options.h"
#include "metricgroup.h"
#include "util/evsel_config.h"
#include "util/event.h"
#include "util/pfm.h"
#include "perf.h"
 
#define MAX_NAME_LEN 100
 
#ifdef PARSER_DEBUG
extern int parse_events_debug;
#endif
int parse_events_parse(void *parse_state, void *scanner);
static int get_config_terms(struct list_head *head_config,
<------><------><------>    struct list_head *head_terms __maybe_unused);
 
static struct perf_pmu_event_symbol *perf_pmu_events_list;
/*
 * The variable indicates the number of supported pmu event symbols.
 * 0 means not initialized and ready to init
 * -1 means failed to init, don't try anymore
 * >0 is the number of supported pmu event symbols
 */
static int perf_pmu_events_list_num;
 
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  = "",
<------>},
};
 
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  = "",
<------>},
<------>[PERF_COUNT_SW_DUMMY] = {
<------><------>.symbol = "dummy",
<------><------>.alias  = "",
<------>},
<------>[PERF_COUNT_SW_BPF_OUTPUT] = {
<------><------>.symbol = "bpf-output",
<------><------>.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)			\
<------>while ((sys_dirent = readdir(sys_dir)) != NULL)		\
<------><------>if (sys_dirent->d_type == DT_DIR &&		\
<------><------>    (strcmp(sys_dirent->d_name, ".")) &&	\
<------><------>    (strcmp(sys_dirent->d_name, "..")))
 
static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir)
{
<------>char evt_path[MAXPATHLEN];
<------>int fd;
 
<------>snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name);
<------>fd = open(evt_path, O_RDONLY);
<------>if (fd < 0)
<------><------>return -EINVAL;
<------>close(fd);
 
<------>return 0;
}
 
#define for_each_event(dir_path, evt_dir, evt_dirent)		\
<------>while ((evt_dirent = readdir(evt_dir)) != NULL)		\
<------><------>if (evt_dirent->d_type == DT_DIR &&		\
<------><------>    (strcmp(evt_dirent->d_name, ".")) &&	\
<------><------>    (strcmp(evt_dirent->d_name, "..")) &&	\
<------><------>    (!tp_event_has_id(dir_path, evt_dirent)))
 
#define MAX_EVENT_LENGTH 512
 
void parse_events__handle_error(struct parse_events_error *err, int idx,
<------><------><------><------>char *str, char *help)
{
<------>if (WARN(!str, "WARNING: failed to provide error string\n")) {
<------><------>free(help);
<------><------>return;
<------>}
<------>switch (err->num_errors) {
<------>case 0:
<------><------>err->idx = idx;
<------><------>err->str = str;
<------><------>err->help = help;
<------><------>break;
<------>case 1:
<------><------>err->first_idx = err->idx;
<------><------>err->idx = idx;
<------><------>err->first_str = err->str;
<------><------>err->str = str;
<------><------>err->first_help = err->help;
<------><------>err->help = help;
<------><------>break;
<------>default:
<------><------>pr_debug("Multiple errors dropping message: %s (%s)\n",
<------><------><------>err->str, err->help);
<------><------>free(err->str);
<------><------>err->str = str;
<------><------>free(err->help);
<------><------>err->help = help;
<------><------>break;
<------>}
<------>err->num_errors++;
}
 
struct tracepoint_path *tracepoint_id_to_path(u64 config)
{
<------>struct tracepoint_path *path = NULL;
<------>DIR *sys_dir, *evt_dir;
<------>struct dirent *sys_dirent, *evt_dirent;
<------>char id_buf[24];
<------>int fd;
<------>u64 id;
<------>char evt_path[MAXPATHLEN];
<------>char *dir_path;
 
<------>sys_dir = tracing_events__opendir();
<------>if (!sys_dir)
<------><------>return NULL;
 
<------>for_each_subsystem(sys_dir, sys_dirent) {
<------><------>dir_path = get_events_file(sys_dirent->d_name);
<------><------>if (!dir_path)
<------><------><------>continue;
<------><------>evt_dir = opendir(dir_path);
<------><------>if (!evt_dir)
<------><------><------>goto next;
 
<------><------>for_each_event(dir_path, evt_dir, evt_dirent) {
 
<------><------><------>scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
<------><------><------><------>  evt_dirent->d_name);
<------><------><------>fd = open(evt_path, O_RDONLY);
<------><------><------>if (fd < 0)
<------><------><------><------>continue;
<------><------><------>if (read(fd, id_buf, sizeof(id_buf)) < 0) {
<------><------><------><------>close(fd);
<------><------><------><------>continue;
<------><------><------>}
<------><------><------>close(fd);
<------><------><------>id = atoll(id_buf);
<------><------><------>if (id == config) {
<------><------><------><------>put_events_file(dir_path);
<------><------><------><------>closedir(evt_dir);
<------><------><------><------>closedir(sys_dir);
<------><------><------><------>path = zalloc(sizeof(*path));
<------><------><------><------>if (!path)
<------><------><------><------><------>return NULL;
<------><------><------><------>if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) {
<------><------><------><------><------>free(path);
<------><------><------><------><------>return NULL;
<------><------><------><------>}
<------><------><------><------>if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) {
<------><------><------><------><------>zfree(&path->system);
<------><------><------><------><------>free(path);
<------><------><------><------><------>return NULL;
<------><------><------><------>}
<------><------><------><------>return path;
<------><------><------>}
<------><------>}
<------><------>closedir(evt_dir);
next:
<------><------>put_events_file(dir_path);
<------>}
 
<------>closedir(sys_dir);
<------>return NULL;
}
 
struct tracepoint_path *tracepoint_name_to_path(const char *name)
{
<------>struct tracepoint_path *path = zalloc(sizeof(*path));
<------>char *str = strchr(name, ':');
 
<------>if (path == NULL || str == NULL) {
<------><------>free(path);
<------><------>return NULL;
<------>}
 
<------>path->system = strndup(name, str - name);
<------>path->name = strdup(str+1);
 
<------>if (path->system == NULL || path->name == NULL) {
<------><------>zfree(&path->system);
<------><------>zfree(&path->name);
<------><------>zfree(&path);
<------>}
 
<------>return path;
}
 
const char *event_type(int type)
{
<------>switch (type) {
<------>case PERF_TYPE_HARDWARE:
<------><------>return "hardware";
 
<------>case PERF_TYPE_SOFTWARE:
<------><------>return "software";
 
<------>case PERF_TYPE_TRACEPOINT:
<------><------>return "tracepoint";
 
<------>case PERF_TYPE_HW_CACHE:
<------><------>return "hardware-cache";
 
<------>default:
<------><------>break;
<------>}
 
<------>return "unknown";
}
 
static int parse_events__is_name_term(struct parse_events_term *term)
{
<------>return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
}
 
static char *get_config_name(struct list_head *head_terms)
{
<------>struct parse_events_term *term;
 
<------>if (!head_terms)
<------><------>return NULL;
 
<------>list_for_each_entry(term, head_terms, list)
<------><------>if (parse_events__is_name_term(term))
<------><------><------>return term->val.str;
 
<------>return NULL;
}
 
static struct evsel *
__add_event(struct list_head *list, int *idx,
<------>    struct perf_event_attr *attr,
<------>    bool init_attr,
<------>    char *name, struct perf_pmu *pmu,
<------>    struct list_head *config_terms, bool auto_merge_stats,
<------>    const char *cpu_list)
{
<------>struct evsel *evsel;
<------>struct perf_cpu_map *cpus = pmu ? perf_cpu_map__get(pmu->cpus) :
<------><------><------>       cpu_list ? perf_cpu_map__new(cpu_list) : NULL;
 
<------>if (init_attr)
<------><------>event_attr_init(attr);
 
<------>evsel = evsel__new_idx(attr, *idx);
<------>if (!evsel) {
<------><------>perf_cpu_map__put(cpus);
<------><------>return NULL;
<------>}
 
<------>(*idx)++;
<------>evsel->core.cpus = cpus;
<------>evsel->core.own_cpus = perf_cpu_map__get(cpus);
<------>evsel->core.system_wide = pmu ? pmu->is_uncore : false;
<------>evsel->auto_merge_stats = auto_merge_stats;
 
<------>if (name)
<------><------>evsel->name = strdup(name);
 
<------>if (config_terms)
<------><------>list_splice(config_terms, &evsel->config_terms);
 
<------>if (list)
<------><------>list_add_tail(&evsel->core.node, list);
 
<------>return evsel;
}
 
struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
<------><------><------><------><------>char *name, struct perf_pmu *pmu)
{
<------>return __add_event(NULL, &idx, attr, false, name, pmu, NULL, false,
<------><------><------>   NULL);
}
 
static int add_event(struct list_head *list, int *idx,
<------><------>     struct perf_event_attr *attr, char *name,
<------><------>     struct list_head *config_terms)
{
<------>return __add_event(list, idx, attr, true, name, NULL, config_terms,
<------><------><------>   false, NULL) ? 0 : -ENOMEM;
}
 
static int add_event_tool(struct list_head *list, int *idx,
<------><------><------>  enum perf_tool_event tool_event)
{
<------>struct evsel *evsel;
<------>struct perf_event_attr attr = {
<------><------>.type = PERF_TYPE_SOFTWARE,
<------><------>.config = PERF_COUNT_SW_DUMMY,
<------>};
 
<------>evsel = __add_event(list, idx, &attr, true, NULL, NULL, NULL, false,
<------><------><------>    "0");
<------>if (!evsel)
<------><------>return -ENOMEM;
<------>evsel->tool_event = tool_event;
<------>if (tool_event == PERF_TOOL_DURATION_TIME)
<------><------>evsel->unit = "ns";
<------>return 0;
}
 
static int parse_aliases(char *str, const char *names[][EVSEL__MAX_ALIASES], int size)
{
<------>int i, j;
<------>int n, longest = -1;
 
<------>for (i = 0; i < size; i++) {
<------><------>for (j = 0; j < EVSEL__MAX_ALIASES && names[i][j]; j++) {
<------><------><------>n = strlen(names[i][j]);
<------><------><------>if (n > longest && !strncasecmp(str, names[i][j], n))
<------><------><------><------>longest = n;
<------><------>}
<------><------>if (longest > 0)
<------><------><------>return i;
<------>}
 
<------>return -1;
}
 
typedef int config_term_func_t(struct perf_event_attr *attr,
<------><------><------>       struct parse_events_term *term,
<------><------><------>       struct parse_events_error *err);
static int config_term_common(struct perf_event_attr *attr,
<------><------><------>      struct parse_events_term *term,
<------><------><------>      struct parse_events_error *err);
static int config_attr(struct perf_event_attr *attr,
<------><------>       struct list_head *head,
<------><------>       struct parse_events_error *err,
<------><------>       config_term_func_t config_term);
 
int parse_events_add_cache(struct list_head *list, int *idx,
<------><------><------>   char *type, char *op_result1, char *op_result2,
<------><------><------>   struct parse_events_error *err,
<------><------><------>   struct list_head *head_config)
{
<------>struct perf_event_attr attr;
<------>LIST_HEAD(config_terms);
<------>char name[MAX_NAME_LEN], *config_name;
<------>int cache_type = -1, cache_op = -1, cache_result = -1;
<------>char *op_result[2] = { op_result1, op_result2 };
<------>int i, n;
 
<------>/*
<------> * No fallback - if we cannot get a clear cache type
<------> * then bail out:
<------> */
<------>cache_type = parse_aliases(type, evsel__hw_cache, PERF_COUNT_HW_CACHE_MAX);
<------>if (cache_type == -1)
<------><------>return -EINVAL;
 
<------>config_name = get_config_name(head_config);
<------>n = snprintf(name, MAX_NAME_LEN, "%s", type);
 
<------>for (i = 0; (i < 2) && (op_result[i]); i++) {
<------><------>char *str = op_result[i];
 
<------><------>n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
 
<------><------>if (cache_op == -1) {
<------><------><------>cache_op = parse_aliases(str, evsel__hw_cache_op,
<------><------><------><------><------><------> PERF_COUNT_HW_CACHE_OP_MAX);
<------><------><------>if (cache_op >= 0) {
<------><------><------><------>if (!evsel__is_cache_op_valid(cache_type, cache_op))
<------><------><------><------><------>return -EINVAL;
<------><------><------><------>continue;
<------><------><------>}
<------><------>}
 
<------><------>if (cache_result == -1) {
<------><------><------>cache_result = parse_aliases(str, evsel__hw_cache_result,
<------><------><------><------><------><------>     PERF_COUNT_HW_CACHE_RESULT_MAX);
<------><------><------>if (cache_result >= 0)
<------><------><------><------>continue;
<------><------>}
<------>}
 
<------>/*
<------> * Fall back to reads:
<------> */
<------>if (cache_op == -1)
<------><------>cache_op = PERF_COUNT_HW_CACHE_OP_READ;
 
<------>/*
<------> * Fall back to accesses:
<------> */
<------>if (cache_result == -1)
<------><------>cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
 
<------>memset(&attr, 0, sizeof(attr));
<------>attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
<------>attr.type = PERF_TYPE_HW_CACHE;
 
<------>if (head_config) {
<------><------>if (config_attr(&attr, head_config, err,
<------><------><------><------>config_term_common))
<------><------><------>return -EINVAL;
 
<------><------>if (get_config_terms(head_config, &config_terms))
<------><------><------>return -ENOMEM;
<------>}
<------>return add_event(list, idx, &attr, config_name ? : name, &config_terms);
}
 
static void tracepoint_error(struct parse_events_error *e, int err,
<------><------><------>     const char *sys, const char *name)
{
<------>const char *str;
<------>char help[BUFSIZ];
 
<------>if (!e)
<------><------>return;
 
<------>/*
<------> * We get error directly from syscall errno ( > 0),
<------> * or from encoded pointer's error ( < 0).
<------> */
<------>err = abs(err);
 
<------>switch (err) {
<------>case EACCES:
<------><------>str = "can't access trace events";
<------><------>break;
<------>case ENOENT:
<------><------>str = "unknown tracepoint";
<------><------>break;
<------>default:
<------><------>str = "failed to add tracepoint";
<------><------>break;
<------>}
 
<------>tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
<------>parse_events__handle_error(e, 0, strdup(str), strdup(help));
}
 
static int add_tracepoint(struct list_head *list, int *idx,
<------><------><------>  const char *sys_name, const char *evt_name,
<------><------><------>  struct parse_events_error *err,
<------><------><------>  struct list_head *head_config)
{
<------>struct evsel *evsel = evsel__newtp_idx(sys_name, evt_name, (*idx)++);
 
<------>if (IS_ERR(evsel)) {
<------><------>tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
<------><------>return PTR_ERR(evsel);
<------>}
 
<------>if (head_config) {
<------><------>LIST_HEAD(config_terms);
 
<------><------>if (get_config_terms(head_config, &config_terms))
<------><------><------>return -ENOMEM;
<------><------>list_splice(&config_terms, &evsel->config_terms);
<------>}
 
<------>list_add_tail(&evsel->core.node, list);
<------>return 0;
}
 
static int add_tracepoint_multi_event(struct list_head *list, int *idx,
<------><------><------><------>      const char *sys_name, const char *evt_name,
<------><------><------><------>      struct parse_events_error *err,
<------><------><------><------>      struct list_head *head_config)
{
<------>char *evt_path;
<------>struct dirent *evt_ent;
<------>DIR *evt_dir;
<------>int ret = 0, found = 0;
 
<------>evt_path = get_events_file(sys_name);
<------>if (!evt_path) {
<------><------>tracepoint_error(err, errno, sys_name, evt_name);
<------><------>return -1;
<------>}
<------>evt_dir = opendir(evt_path);
<------>if (!evt_dir) {
<------><------>put_events_file(evt_path);
<------><------>tracepoint_error(err, errno, sys_name, evt_name);
<------><------>return -1;
<------>}
 
<------>while (!ret && (evt_ent = readdir(evt_dir))) {
<------><------>if (!strcmp(evt_ent->d_name, ".")
<------><------>    || !strcmp(evt_ent->d_name, "..")
<------><------>    || !strcmp(evt_ent->d_name, "enable")
<------><------>    || !strcmp(evt_ent->d_name, "filter"))
<------><------><------>continue;
 
<------><------>if (!strglobmatch(evt_ent->d_name, evt_name))
<------><------><------>continue;
 
<------><------>found++;
 
<------><------>ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
<------><------><------><------>     err, head_config);
<------>}
 
<------>if (!found) {
<------><------>tracepoint_error(err, ENOENT, sys_name, evt_name);
<------><------>ret = -1;
<------>}
 
<------>put_events_file(evt_path);
<------>closedir(evt_dir);
<------>return ret;
}
 
static int add_tracepoint_event(struct list_head *list, int *idx,
<------><------><------><------>const char *sys_name, const char *evt_name,
<------><------><------><------>struct parse_events_error *err,
<------><------><------><------>struct list_head *head_config)
{
<------>return strpbrk(evt_name, "*?") ?
<------>       add_tracepoint_multi_event(list, idx, sys_name, evt_name,
<------><------><------><------><------>  err, head_config) :
<------>       add_tracepoint(list, idx, sys_name, evt_name,
<------><------><------>      err, head_config);
}
 
static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
<------><------><------><------>    const char *sys_name, const char *evt_name,
<------><------><------><------>    struct parse_events_error *err,
<------><------><------><------>    struct list_head *head_config)
{
<------>struct dirent *events_ent;
<------>DIR *events_dir;
<------>int ret = 0;
 
<------>events_dir = tracing_events__opendir();
<------>if (!events_dir) {
<------><------>tracepoint_error(err, errno, sys_name, evt_name);
<------><------>return -1;
<------>}
 
<------>while (!ret && (events_ent = readdir(events_dir))) {
<------><------>if (!strcmp(events_ent->d_name, ".")
<------><------>    || !strcmp(events_ent->d_name, "..")
<------><------>    || !strcmp(events_ent->d_name, "enable")
<------><------>    || !strcmp(events_ent->d_name, "header_event")
<------><------>    || !strcmp(events_ent->d_name, "header_page"))
<------><------><------>continue;
 
<------><------>if (!strglobmatch(events_ent->d_name, sys_name))
<------><------><------>continue;
 
<------><------>ret = add_tracepoint_event(list, idx, events_ent->d_name,
<------><------><------><------><------>   evt_name, err, head_config);
<------>}
 
<------>closedir(events_dir);
<------>return ret;
}
 
struct __add_bpf_event_param {
<------>struct parse_events_state *parse_state;
<------>struct list_head *list;
<------>struct list_head *head_config;
};
 
static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj,
<------><------><------> void *_param)
{
<------>LIST_HEAD(new_evsels);
<------>struct __add_bpf_event_param *param = _param;
<------>struct parse_events_state *parse_state = param->parse_state;
<------>struct list_head *list = param->list;
<------>struct evsel *pos;
<------>int err;
<------>/*
<------> * Check if we should add the event, i.e. if it is a TP but starts with a '!',
<------> * then don't add the tracepoint, this will be used for something else, like
<------> * adding to a BPF_MAP_TYPE_PROG_ARRAY.
<------> *
<------> * See tools/perf/examples/bpf/augmented_raw_syscalls.c
<------> */
<------>if (group[0] == '!')
<------><------>return 0;
 
<------>pr_debug("add bpf event %s:%s and attach bpf program %d\n",
<------><------> group, event, fd);
 
<------>err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group,
<------><------><------><------><------>  event, parse_state->error,
<------><------><------><------><------>  param->head_config);
<------>if (err) {
<------><------>struct evsel *evsel, *tmp;
 
<------><------>pr_debug("Failed to add BPF event %s:%s\n",
<------><------><------> group, event);
<------><------>list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) {
<------><------><------>list_del_init(&evsel->core.node);
<------><------><------>evsel__delete(evsel);
<------><------>}
<------><------>return err;
<------>}
<------>pr_debug("adding %s:%s\n", group, event);
 
<------>list_for_each_entry(pos, &new_evsels, core.node) {
<------><------>pr_debug("adding %s:%s to %p\n",
<------><------><------> group, event, pos);
<------><------>pos->bpf_fd = fd;
<------><------>pos->bpf_obj = obj;
<------>}
<------>list_splice(&new_evsels, list);
<------>return 0;
}
 
int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
<------><------><------>      struct list_head *list,
<------><------><------>      struct bpf_object *obj,
<------><------><------>      struct list_head *head_config)
{
<------>int err;
<------>char errbuf[BUFSIZ];
<------>struct __add_bpf_event_param param = {parse_state, list, head_config};
<------>static bool registered_unprobe_atexit = false;
 
<------>if (IS_ERR(obj) || !obj) {
<------><------>snprintf(errbuf, sizeof(errbuf),
<------><------><------> "Internal error: load bpf obj with NULL");
<------><------>err = -EINVAL;
<------><------>goto errout;
<------>}
 
<------>/*
<------> * Register atexit handler before calling bpf__probe() so
<------> * bpf__probe() don't need to unprobe probe points its already
<------> * created when failure.
<------> */
<------>if (!registered_unprobe_atexit) {
<------><------>atexit(bpf__clear);
<------><------>registered_unprobe_atexit = true;
<------>}
 
<------>err = bpf__probe(obj);
<------>if (err) {
<------><------>bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
<------><------>goto errout;
<------>}
 
<------>err = bpf__load(obj);
<------>if (err) {
<------><------>bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
<------><------>goto errout;
<------>}
 
<------>err = bpf__foreach_event(obj, add_bpf_event, &param);
<------>if (err) {
<------><------>snprintf(errbuf, sizeof(errbuf),
<------><------><------> "Attach events in BPF object failed");
<------><------>goto errout;
<------>}
 
<------>return 0;
errout:
<------>parse_events__handle_error(parse_state->error, 0,
<------><------><------><------>strdup(errbuf), strdup("(add -v to see detail)"));
<------>return err;
}
 
static int
parse_events_config_bpf(struct parse_events_state *parse_state,
<------><------><------>struct bpf_object *obj,
<------><------><------>struct list_head *head_config)
{
<------>struct parse_events_term *term;
<------>int error_pos;
 
<------>if (!head_config || list_empty(head_config))
<------><------>return 0;
 
<------>list_for_each_entry(term, head_config, list) {
<------><------>int err;
 
<------><------>if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) {
<------><------><------>parse_events__handle_error(parse_state->error, term->err_term,
<------><------><------><------><------><------>strdup("Invalid config term for BPF object"),
<------><------><------><------><------><------>NULL);
<------><------><------>return -EINVAL;
<------><------>}
 
<------><------>err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos);
<------><------>if (err) {
<------><------><------>char errbuf[BUFSIZ];
<------><------><------>int idx;
 
<------><------><------>bpf__strerror_config_obj(obj, term, parse_state->evlist,
<------><------><------><------><------><------> &error_pos, err, errbuf,
<------><------><------><------><------><------> sizeof(errbuf));
 
<------><------><------>if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE)
<------><------><------><------>idx = term->err_val;
<------><------><------>else
<------><------><------><------>idx = term->err_term + error_pos;
 
<------><------><------>parse_events__handle_error(parse_state->error, idx,
<------><------><------><------><------><------>strdup(errbuf),
<------><------><------><------><------><------>strdup(
"Hint:\tValid config terms:\n"
"     \tmap:[<arraymap>].value<indices>=[value]\n"
"     \tmap:[<eventmap>].event<indices>=[event]\n"
"\n"
"     \twhere <indices> is something like [0,3...5] or [all]\n"
"     \t(add -v to see detail)"));
<------><------><------>return err;
<------><------>}
<------>}
<------>return 0;
}
 
/*
 * Split config terms:
 * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ...
 *  'call-graph=fp' is 'evt config', should be applied to each
 *  events in bpf.c.
 * 'map:array.value[0]=1' is 'obj config', should be processed
 * with parse_events_config_bpf.
 *
 * Move object config terms from the first list to obj_head_config.
 */
static void
split_bpf_config_terms(struct list_head *evt_head_config,
<------><------>       struct list_head *obj_head_config)
{
<------>struct parse_events_term *term, *temp;
 
<------>/*
<------> * Currectly, all possible user config term
<------> * belong to bpf object. parse_events__is_hardcoded_term()
<------> * happends to be a good flag.
<------> *
<------> * See parse_events_config_bpf() and
<------> * config_term_tracepoint().
<------> */
<------>list_for_each_entry_safe(term, temp, evt_head_config, list)
<------><------>if (!parse_events__is_hardcoded_term(term))
<------><------><------>list_move_tail(&term->list, obj_head_config);
}
 
int parse_events_load_bpf(struct parse_events_state *parse_state,
<------><------><------>  struct list_head *list,
<------><------><------>  char *bpf_file_name,
<------><------><------>  bool source,
<------><------><------>  struct list_head *head_config)
{
<------>int err;
<------>struct bpf_object *obj;
<------>LIST_HEAD(obj_head_config);
 
<------>if (head_config)
<------><------>split_bpf_config_terms(head_config, &obj_head_config);
 
<------>obj = bpf__prepare_load(bpf_file_name, source);
<------>if (IS_ERR(obj)) {
<------><------>char errbuf[BUFSIZ];
 
<------><------>err = PTR_ERR(obj);
 
<------><------>if (err == -ENOTSUP)
<------><------><------>snprintf(errbuf, sizeof(errbuf),
<------><------><------><------> "BPF support is not compiled");
<------><------>else
<------><------><------>bpf__strerror_prepare_load(bpf_file_name,
<------><------><------><------><------><------>   source,
<------><------><------><------><------><------>   -err, errbuf,
<------><------><------><------><------><------>   sizeof(errbuf));
 
<------><------>parse_events__handle_error(parse_state->error, 0,
<------><------><------><------><------>strdup(errbuf), strdup("(add -v to see detail)"));
<------><------>return err;
<------>}
 
<------>err = parse_events_load_bpf_obj(parse_state, list, obj, head_config);
<------>if (err)
<------><------>return err;
<------>err = parse_events_config_bpf(parse_state, obj, &obj_head_config);
 
<------>/*
<------> * Caller doesn't know anything about obj_head_config,
<------> * so combine them together again before returnning.
<------> */
<------>if (head_config)
<------><------>list_splice_tail(&obj_head_config, head_config);
<------>return err;
}
 
static int
parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
{
<------>int i;
 
<------>for (i = 0; i < 3; i++) {
<------><------>if (!type || !type[i])
<------><------><------>break;
 
#define CHECK_SET_TYPE(bit)		\
do {					\
<------>if (attr->bp_type & bit)	\
<------><------>return -EINVAL;		\
<------>else				\
<------><------>attr->bp_type |= bit;	\
} while (0)
 
<------><------>switch (type[i]) {
<------><------>case 'r':
<------><------><------>CHECK_SET_TYPE(HW_BREAKPOINT_R);
<------><------><------>break;
<------><------>case 'w':
<------><------><------>CHECK_SET_TYPE(HW_BREAKPOINT_W);
<------><------><------>break;
<------><------>case 'x':
<------><------><------>CHECK_SET_TYPE(HW_BREAKPOINT_X);
<------><------><------>break;
<------><------>default:
<------><------><------>return -EINVAL;
<------><------>}
<------>}
 
#undef CHECK_SET_TYPE
 
<------>if (!attr->bp_type) /* Default */
<------><------>attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
 
<------>return 0;
}
 
int parse_events_add_breakpoint(struct list_head *list, int *idx,
<------><------><------><------>u64 addr, char *type, u64 len)
{
<------>struct perf_event_attr attr;
 
<------>memset(&attr, 0, sizeof(attr));
<------>attr.bp_addr = addr;
 
<------>if (parse_breakpoint_type(type, &attr))
<------><------>return -EINVAL;
 
<------>/* Provide some defaults if len is not specified */
<------>if (!len) {
<------><------>if (attr.bp_type == HW_BREAKPOINT_X)
<------><------><------>len = sizeof(long);
<------><------>else
<------><------><------>len = HW_BREAKPOINT_LEN_4;
<------>}
 
<------>attr.bp_len = len;
 
<------>attr.type = PERF_TYPE_BREAKPOINT;
<------>attr.sample_period = 1;
 
<------>return add_event(list, idx, &attr, NULL, NULL);
}
 
static int check_type_val(struct parse_events_term *term,
<------><------><------>  struct parse_events_error *err,
<------><------><------>  int type)
{
<------>if (type == term->type_val)
<------><------>return 0;
 
<------>if (err) {
<------><------>parse_events__handle_error(err, term->err_val,
<------><------><------><------><------>type == PARSE_EVENTS__TERM_TYPE_NUM
<------><------><------><------><------>? strdup("expected numeric value")
<------><------><------><------><------>: strdup("expected string value"),
<------><------><------><------><------>NULL);
<------>}
<------>return -EINVAL;
}
 
/*
 * Update according to parse-events.l
 */
static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
<------>[PARSE_EVENTS__TERM_TYPE_USER]			= "<sysfs term>",
<------>[PARSE_EVENTS__TERM_TYPE_CONFIG]		= "config",
<------>[PARSE_EVENTS__TERM_TYPE_CONFIG1]		= "config1",
<------>[PARSE_EVENTS__TERM_TYPE_CONFIG2]		= "config2",
<------>[PARSE_EVENTS__TERM_TYPE_NAME]			= "name",
<------>[PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD]		= "period",
<------>[PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ]		= "freq",
<------>[PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE]	= "branch_type",
<------>[PARSE_EVENTS__TERM_TYPE_TIME]			= "time",
<------>[PARSE_EVENTS__TERM_TYPE_CALLGRAPH]		= "call-graph",
<------>[PARSE_EVENTS__TERM_TYPE_STACKSIZE]		= "stack-size",
<------>[PARSE_EVENTS__TERM_TYPE_NOINHERIT]		= "no-inherit",
<------>[PARSE_EVENTS__TERM_TYPE_INHERIT]		= "inherit",
<------>[PARSE_EVENTS__TERM_TYPE_MAX_STACK]		= "max-stack",
<------>[PARSE_EVENTS__TERM_TYPE_MAX_EVENTS]		= "nr",
<------>[PARSE_EVENTS__TERM_TYPE_OVERWRITE]		= "overwrite",
<------>[PARSE_EVENTS__TERM_TYPE_NOOVERWRITE]		= "no-overwrite",
<------>[PARSE_EVENTS__TERM_TYPE_DRV_CFG]		= "driver-config",
<------>[PARSE_EVENTS__TERM_TYPE_PERCORE]		= "percore",
<------>[PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT]		= "aux-output",
<------>[PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE]	= "aux-sample-size",
};
 
static bool config_term_shrinked;
 
static bool
config_term_avail(int term_type, struct parse_events_error *err)
{
<------>char *err_str;
 
<------>if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) {
<------><------>parse_events__handle_error(err, -1,
<------><------><------><------><------>strdup("Invalid term_type"), NULL);
<------><------>return false;
<------>}
<------>if (!config_term_shrinked)
<------><------>return true;
 
<------>switch (term_type) {
<------>case PARSE_EVENTS__TERM_TYPE_CONFIG:
<------>case PARSE_EVENTS__TERM_TYPE_CONFIG1:
<------>case PARSE_EVENTS__TERM_TYPE_CONFIG2:
<------>case PARSE_EVENTS__TERM_TYPE_NAME:
<------>case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
<------>case PARSE_EVENTS__TERM_TYPE_PERCORE:
<------><------>return true;
<------>default:
<------><------>if (!err)
<------><------><------>return false;
 
<------><------>/* term_type is validated so indexing is safe */
<------><------>if (asprintf(&err_str, "'%s' is not usable in 'perf stat'",
<------><------><------><------>config_term_names[term_type]) >= 0)
<------><------><------>parse_events__handle_error(err, -1, err_str, NULL);
<------><------>return false;
<------>}
}
 
void parse_events__shrink_config_terms(void)
{
<------>config_term_shrinked = true;
}
 
static int config_term_common(struct perf_event_attr *attr,
<------><------><------>      struct parse_events_term *term,
<------><------><------>      struct parse_events_error *err)
{
#define CHECK_TYPE_VAL(type)						   \
do {									   \
<------>if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
<------><------>return -EINVAL;						   \
} while (0)
 
<------>switch (term->type_term) {
<------>case PARSE_EVENTS__TERM_TYPE_CONFIG:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>attr->config = term->val.num;
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_CONFIG1:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>attr->config1 = term->val.num;
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_CONFIG2:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>attr->config2 = term->val.num;
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
<------><------>CHECK_TYPE_VAL(STR);
<------><------>if (strcmp(term->val.str, "no") &&
<------><------>    parse_branch_str(term->val.str,
<------><------><------><------>    &attr->branch_sample_type)) {
<------><------><------>parse_events__handle_error(err, term->err_val,
<------><------><------><------><------>strdup("invalid branch sample type"),
<------><------><------><------><------>NULL);
<------><------><------>return -EINVAL;
<------><------>}
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_TIME:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>if (term->val.num > 1) {
<------><------><------>parse_events__handle_error(err, term->err_val,
<------><------><------><------><------><------>strdup("expected 0 or 1"),
<------><------><------><------><------><------>NULL);
<------><------><------>return -EINVAL;
<------><------>}
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
<------><------>CHECK_TYPE_VAL(STR);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_INHERIT:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_NAME:
<------><------>CHECK_TYPE_VAL(STR);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_PERCORE:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>if ((unsigned int)term->val.num > 1) {
<------><------><------>parse_events__handle_error(err, term->err_val,
<------><------><------><------><------><------>strdup("expected 0 or 1"),
<------><------><------><------><------><------>NULL);
<------><------><------>return -EINVAL;
<------><------>}
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
<------><------>CHECK_TYPE_VAL(NUM);
<------><------>if (term->val.num > UINT_MAX) {
<------><------><------>parse_events__handle_error(err, term->err_val,
<------><------><------><------><------><------>strdup("too big"),
<------><------><------><------><------><------>NULL);
<------><------><------>return -EINVAL;
<------><------>}
<------><------>break;
<------>default:
<------><------>parse_events__handle_error(err, term->err_term,
<------><------><------><------>strdup("unknown term"),
<------><------><------><------>parse_events_formats_error_string(NULL));
<------><------>return -EINVAL;
<------>}
 
<------>/*
<------> * Check term availbility after basic checking so
<------> * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered.
<------> *
<------> * If check availbility at the entry of this function,
<------> * user will see "'<sysfs term>' is not usable in 'perf stat'"
<------> * if an invalid config term is provided for legacy events
<------> * (for example, instructions/badterm/...), which is confusing.
<------> */
<------>if (!config_term_avail(term->type_term, err))
<------><------>return -EINVAL;
<------>return 0;
#undef CHECK_TYPE_VAL
}
 
static int config_term_pmu(struct perf_event_attr *attr,
<------><------><------>   struct parse_events_term *term,
<------><------><------>   struct parse_events_error *err)
{
<------>if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER ||
<------>    term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG)
<------><------>/*
<------><------> * Always succeed for sysfs terms, as we dont know
<------><------> * at this point what type they need to have.
<------><------> */
<------><------>return 0;
<------>else
<------><------>return config_term_common(attr, term, err);
}
 
static int config_term_tracepoint(struct perf_event_attr *attr,
<------><------><------><------>  struct parse_events_term *term,
<------><------><------><------>  struct parse_events_error *err)
{
<------>switch (term->type_term) {
<------>case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
<------>case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
<------>case PARSE_EVENTS__TERM_TYPE_INHERIT:
<------>case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
<------>case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
<------>case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
<------>case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
<------>case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
<------>case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
<------>case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
<------><------>return config_term_common(attr, term, err);
<------>default:
<------><------>if (err) {
<------><------><------>parse_events__handle_error(err, term->err_term,
<------><------><------><------>strdup("unknown term"),
<------><------><------><------>strdup("valid terms: call-graph,stack-size\n"));
<------><------>}
<------><------>return -EINVAL;
<------>}
 
<------>return 0;
}
 
static int config_attr(struct perf_event_attr *attr,
<------><------>       struct list_head *head,
<------><------>       struct parse_events_error *err,
<------><------>       config_term_func_t config_term)
{
<------>struct parse_events_term *term;
 
<------>list_for_each_entry(term, head, list)
<------><------>if (config_term(attr, term, err))
<------><------><------>return -EINVAL;
 
<------>return 0;
}
 
static int get_config_terms(struct list_head *head_config,
<------><------><------>    struct list_head *head_terms __maybe_unused)
{
#define ADD_CONFIG_TERM(__type, __weak)				\
<------>struct evsel_config_term *__t;			\
<------><------><------><------><------><------><------><------>\
<------>__t = zalloc(sizeof(*__t));				\
<------>if (!__t)						\
<------><------>return -ENOMEM;					\
<------><------><------><------><------><------><------><------>\
<------>INIT_LIST_HEAD(&__t->list);				\
<------>__t->type       = EVSEL__CONFIG_TERM_ ## __type;	\
<------>__t->weak	= __weak;				\
<------>list_add_tail(&__t->list, head_terms)
 
#define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak)	\
do {								\
<------>ADD_CONFIG_TERM(__type, __weak);			\
<------>__t->val.__name = __val;				\
} while (0)
 
#define ADD_CONFIG_TERM_STR(__type, __val, __weak)		\
do {								\
<------>ADD_CONFIG_TERM(__type, __weak);			\
<------>__t->val.str = strdup(__val);				\
<------>if (!__t->val.str) {					\
<------><------>zfree(&__t);					\
<------><------>return -ENOMEM;					\
<------>}							\
<------>__t->free_str = true;					\
} while (0)
 
<------>struct parse_events_term *term;
 
<------>list_for_each_entry(term, head_config, list) {
<------><------>switch (term->type_term) {
<------><------>case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
<------><------><------>ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
<------><------><------>ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_TIME:
<------><------><------>ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
<------><------><------>ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
<------><------><------>ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
<------><------><------>ADD_CONFIG_TERM_VAL(STACK_USER, stack_user,
<------><------><------><------><------>    term->val.num, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_INHERIT:
<------><------><------>ADD_CONFIG_TERM_VAL(INHERIT, inherit,
<------><------><------><------><------>    term->val.num ? 1 : 0, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
<------><------><------>ADD_CONFIG_TERM_VAL(INHERIT, inherit,
<------><------><------><------><------>    term->val.num ? 0 : 1, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
<------><------><------>ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack,
<------><------><------><------><------>    term->val.num, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
<------><------><------>ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events,
<------><------><------><------><------>    term->val.num, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
<------><------><------>ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
<------><------><------><------><------>    term->val.num ? 1 : 0, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
<------><------><------>ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
<------><------><------><------><------>    term->val.num ? 0 : 1, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
<------><------><------>ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_PERCORE:
<------><------><------>ADD_CONFIG_TERM_VAL(PERCORE, percore,
<------><------><------><------><------>    term->val.num ? true : false, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
<------><------><------>ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output,
<------><------><------><------><------>    term->val.num ? 1 : 0, term->weak);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
<------><------><------>ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size,
<------><------><------><------><------>    term->val.num, term->weak);
<------><------><------>break;
<------><------>default:
<------><------><------>break;
<------><------>}
<------>}
<------>return 0;
}
 
/*
 * Add EVSEL__CONFIG_TERM_CFG_CHG where cfg_chg will have a bit set for
 * each bit of attr->config that the user has changed.
 */
static int get_config_chgs(struct perf_pmu *pmu, struct list_head *head_config,
<------><------><------>   struct list_head *head_terms)
{
<------>struct parse_events_term *term;
<------>u64 bits = 0;
<------>int type;
 
<------>list_for_each_entry(term, head_config, list) {
<------><------>switch (term->type_term) {
<------><------>case PARSE_EVENTS__TERM_TYPE_USER:
<------><------><------>type = perf_pmu__format_type(&pmu->format, term->config);
<------><------><------>if (type != PERF_PMU_FORMAT_VALUE_CONFIG)
<------><------><------><------>continue;
<------><------><------>bits |= perf_pmu__format_bits(&pmu->format, term->config);
<------><------><------>break;
<------><------>case PARSE_EVENTS__TERM_TYPE_CONFIG:
<------><------><------>bits = ~(u64)0;
<------><------><------>break;
<------><------>default:
<------><------><------>break;
<------><------>}
<------>}
 
<------>if (bits)
<------><------>ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false);
 
#undef ADD_CONFIG_TERM
<------>return 0;
}
 
int parse_events_add_tracepoint(struct list_head *list, int *idx,
<------><------><------><------>const char *sys, const char *event,
<------><------><------><------>struct parse_events_error *err,
<------><------><------><------>struct list_head *head_config)
{
<------>if (head_config) {
<------><------>struct perf_event_attr attr;
 
<------><------>if (config_attr(&attr, head_config, err,
<------><------><------><------>config_term_tracepoint))
<------><------><------>return -EINVAL;
<------>}
 
<------>if (strpbrk(sys, "*?"))
<------><------>return add_tracepoint_multi_sys(list, idx, sys, event,
<------><------><------><------><------><------>err, head_config);
<------>else
<------><------>return add_tracepoint_event(list, idx, sys, event,
<------><------><------><------><------>    err, head_config);
}
 
int parse_events_add_numeric(struct parse_events_state *parse_state,
<------><------><------>     struct list_head *list,
<------><------><------>     u32 type, u64 config,
<------><------><------>     struct list_head *head_config)
{
<------>struct perf_event_attr attr;
<------>LIST_HEAD(config_terms);
 
<------>memset(&attr, 0, sizeof(attr));
<------>attr.type = type;
<------>attr.config = config;
 
<------>if (head_config) {
<------><------>if (config_attr(&attr, head_config, parse_state->error,
<------><------><------><------>config_term_common))
<------><------><------>return -EINVAL;
 
<------><------>if (get_config_terms(head_config, &config_terms))
<------><------><------>return -ENOMEM;
<------>}
 
<------>return add_event(list, &parse_state->idx, &attr,
<------><------><------> get_config_name(head_config), &config_terms);
}
 
int parse_events_add_tool(struct parse_events_state *parse_state,
<------><------><------>  struct list_head *list,
<------><------><------>  enum perf_tool_event tool_event)
{
<------>return add_event_tool(list, &parse_state->idx, tool_event);
}
 
static bool config_term_percore(struct list_head *config_terms)
{
<------>struct evsel_config_term *term;
 
<------>list_for_each_entry(term, config_terms, list) {
<------><------>if (term->type == EVSEL__CONFIG_TERM_PERCORE)
<------><------><------>return term->val.percore;
<------>}
 
<------>return false;
}
 
int parse_events_add_pmu(struct parse_events_state *parse_state,
<------><------><------> struct list_head *list, char *name,
<------><------><------> struct list_head *head_config,
<------><------><------> bool auto_merge_stats,
<------><------><------> bool use_alias)
{
<------>struct perf_event_attr attr;
<------>struct perf_pmu_info info;
<------>struct perf_pmu *pmu;
<------>struct evsel *evsel;
<------>struct parse_events_error *err = parse_state->error;
<------>bool use_uncore_alias;
<------>LIST_HEAD(config_terms);
 
<------>if (verbose > 1) {
<------><------>fprintf(stderr, "Attempting to add event pmu '%s' with '",
<------><------><------>name);
<------><------>if (head_config) {
<------><------><------>struct parse_events_term *term;
 
<------><------><------>list_for_each_entry(term, head_config, list) {
<------><------><------><------>fprintf(stderr, "%s,", term->config);
<------><------><------>}
<------><------>}
<------><------>fprintf(stderr, "' that may result in non-fatal errors\n");
<------>}
 
<------>pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
<------>if (!pmu) {
<------><------>char *err_str;
 
<------><------>if (asprintf(&err_str,
<------><------><------><------>"Cannot find PMU `%s'. Missing kernel support?",
<------><------><------><------>name) >= 0)
<------><------><------>parse_events__handle_error(err, 0, err_str, NULL);
<------><------>return -EINVAL;
<------>}
 
<------>if (pmu->default_config) {
<------><------>memcpy(&attr, pmu->default_config,
<------><------>       sizeof(struct perf_event_attr));
<------>} else {
<------><------>memset(&attr, 0, sizeof(attr));
<------>}
 
<------>use_uncore_alias = (pmu->is_uncore && use_alias);
 
<------>if (!head_config) {
<------><------>attr.type = pmu->type;
<------><------>evsel = __add_event(list, &parse_state->idx, &attr, true, NULL,
<------><------><------><------>    pmu, NULL, auto_merge_stats, NULL);
<------><------>if (evsel) {
<------><------><------>evsel->pmu_name = name ? strdup(name) : NULL;
<------><------><------>evsel->use_uncore_alias = use_uncore_alias;
<------><------><------>return 0;
<------><------>} else {
<------><------><------>return -ENOMEM;
<------><------>}
<------>}
 
<------>if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &info))
<------><------>return -EINVAL;
 
<------>if (verbose > 1) {
<------><------>fprintf(stderr, "After aliases, add event pmu '%s' with '",
<------><------><------>name);
<------><------>if (head_config) {
<------><------><------>struct parse_events_term *term;
 
<------><------><------>list_for_each_entry(term, head_config, list) {
<------><------><------><------>fprintf(stderr, "%s,", term->config);
<------><------><------>}
<------><------>}
<------><------>fprintf(stderr, "' that may result in non-fatal errors\n");
<------>}
 
<------>/*
<------> * Configure hardcoded terms first, no need to check
<------> * return value when called with fail == 0 ;)
<------> */
<------>if (config_attr(&attr, head_config, parse_state->error, config_term_pmu))
<------><------>return -EINVAL;
 
<------>if (get_config_terms(head_config, &config_terms))
<------><------>return -ENOMEM;
 
<------>/*
<------> * When using default config, record which bits of attr->config were
<------> * changed by the user.
<------> */
<------>if (pmu->default_config && get_config_chgs(pmu, head_config, &config_terms))
<------><------>return -ENOMEM;
 
<------>if (!parse_state->fake_pmu && perf_pmu__config(pmu, &attr, head_config, parse_state->error)) {
<------><------>struct evsel_config_term *pos, *tmp;
 
<------><------>list_for_each_entry_safe(pos, tmp, &config_terms, list) {
<------><------><------>list_del_init(&pos->list);
<------><------><------>if (pos->free_str)
<------><------><------><------>zfree(&pos->val.str);
<------><------><------>free(pos);
<------><------>}
<------><------>return -EINVAL;
<------>}
 
<------>evsel = __add_event(list, &parse_state->idx, &attr, true,
<------><------><------>    get_config_name(head_config), pmu,
<------><------><------>    &config_terms, auto_merge_stats, NULL);
<------>if (!evsel)
<------><------>return -ENOMEM;
 
<------>evsel->pmu_name = name ? strdup(name) : NULL;
<------>evsel->use_uncore_alias = use_uncore_alias;
<------>evsel->percore = config_term_percore(&evsel->config_terms);
 
<------>if (parse_state->fake_pmu)
<------><------>return 0;
 
<------>evsel->unit = info.unit;
<------>evsel->scale = info.scale;
<------>evsel->per_pkg = info.per_pkg;
<------>evsel->snapshot = info.snapshot;
<------>evsel->metric_expr = info.metric_expr;
<------>evsel->metric_name = info.metric_name;
<------>return 0;
}
 
int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
<------><------><------>       char *str, struct list_head **listp)
{
<------>struct parse_events_term *term;
<------>struct list_head *list;
<------>struct perf_pmu *pmu = NULL;
<------>int ok = 0;
 
<------>*listp = NULL;
<------>/* Add it for all PMUs that support the alias */
<------>list = malloc(sizeof(struct list_head));
<------>if (!list)
<------><------>return -1;
<------>INIT_LIST_HEAD(list);
<------>while ((pmu = perf_pmu__scan(pmu)) != NULL) {
<------><------>struct perf_pmu_alias *alias;
 
<------><------>list_for_each_entry(alias, &pmu->aliases, list) {
<------><------><------>if (!strcasecmp(alias->name, str)) {
<------><------><------><------>struct list_head *head;
<------><------><------><------>char *config;
 
<------><------><------><------>head = malloc(sizeof(struct list_head));
<------><------><------><------>if (!head)
<------><------><------><------><------>return -1;
<------><------><------><------>INIT_LIST_HEAD(head);
<------><------><------><------>config = strdup(str);
<------><------><------><------>if (!config)
<------><------><------><------><------>return -1;
<------><------><------><------>if (parse_events_term__num(&term,
<------><------><------><------><------><------>   PARSE_EVENTS__TERM_TYPE_USER,
<------><------><------><------><------><------>   config, 1, false, &config,
<------><------><------><------><------><------>   NULL) < 0) {
<------><------><------><------><------>free(list);
<------><------><------><------><------>free(config);
<------><------><------><------><------>return -1;
<------><------><------><------>}
<------><------><------><------>list_add_tail(&term->list, head);
 
<------><------><------><------>if (!parse_events_add_pmu(parse_state, list,
<------><------><------><------><------><------><------>  pmu->name, head,
<------><------><------><------><------><------><------>  true, true)) {
<------><------><------><------><------>pr_debug("%s -> %s/%s/\n", str,
<------><------><------><------><------><------> pmu->name, alias->str);
<------><------><------><------><------>ok++;
<------><------><------><------>}
 
<------><------><------><------>parse_events_terms__delete(head);
<------><------><------>}
<------><------>}
<------>}
<------>if (!ok) {
<------><------>free(list);
<------><------>return -1;
<------>}
<------>*listp = list;
<------>return 0;
}
 
int parse_events__modifier_group(struct list_head *list,
<------><------><------><------> char *event_mod)
{
<------>return parse_events__modifier_event(list, event_mod, true);
}
 
/*
 * Check if the two uncore PMUs are from the same uncore block
 * The format of the uncore PMU name is uncore_#blockname_#pmuidx
 */
static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b)
{
<------>char *end_a, *end_b;
 
<------>end_a = strrchr(pmu_name_a, '_');
<------>end_b = strrchr(pmu_name_b, '_');
 
<------>if (!end_a || !end_b)
<------><------>return false;
 
<------>if ((end_a - pmu_name_a) != (end_b - pmu_name_b))
<------><------>return false;
 
<------>return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0);
}
 
static int
parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
<------><------><------><------><------>   struct parse_events_state *parse_state)
{
<------>struct evsel *evsel, *leader;
<------>uintptr_t *leaders;
<------>bool is_leader = true;
<------>int i, nr_pmu = 0, total_members, ret = 0;
 
<------>leader = list_first_entry(list, struct evsel, core.node);
<------>evsel = list_last_entry(list, struct evsel, core.node);
<------>total_members = evsel->idx - leader->idx + 1;
 
<------>leaders = calloc(total_members, sizeof(uintptr_t));
<------>if (WARN_ON(!leaders))
<------><------>return 0;
 
<------>/*
<------> * Going through the whole group and doing sanity check.
<------> * All members must use alias, and be from the same uncore block.
<------> * Also, storing the leader events in an array.
<------> */
<------>__evlist__for_each_entry(list, evsel) {
 
<------><------>/* Only split the uncore group which members use alias */
<------><------>if (!evsel->use_uncore_alias)
<------><------><------>goto out;
 
<------><------>/* The events must be from the same uncore block */
<------><------>if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name))
<------><------><------>goto out;
 
<------><------>if (!is_leader)
<------><------><------>continue;
<------><------>/*
<------><------> * If the event's PMU name starts to repeat, it must be a new
<------><------> * event. That can be used to distinguish the leader from
<------><------> * other members, even they have the same event name.
<------><------> */
<------><------>if ((leader != evsel) &&
<------><------>    !strcmp(leader->pmu_name, evsel->pmu_name)) {
<------><------><------>is_leader = false;
<------><------><------>continue;
<------><------>}
 
<------><------>/* Store the leader event for each PMU */
<------><------>leaders[nr_pmu++] = (uintptr_t) evsel;
<------>}
 
<------>/* only one event alias */
<------>if (nr_pmu == total_members) {
<------><------>parse_state->nr_groups--;
<------><------>goto handled;
<------>}
 
<------>/*
<------> * An uncore event alias is a joint name which means the same event
<------> * runs on all PMUs of a block.
<------> * Perf doesn't support mixed events from different PMUs in the same
<------> * group. The big group has to be split into multiple small groups
<------> * which only include the events from the same PMU.
<------> *
<------> * Here the uncore event aliases must be from the same uncore block.
<------> * The number of PMUs must be same for each alias. The number of new
<------> * small groups equals to the number of PMUs.
<------> * Setting the leader event for corresponding members in each group.
<------> */
<------>i = 0;
<------>__evlist__for_each_entry(list, evsel) {
<------><------>if (i >= nr_pmu)
<------><------><------>i = 0;
<------><------>evsel->leader = (struct evsel *) leaders[i++];
<------>}
 
<------>/* The number of members and group name are same for each group */
<------>for (i = 0; i < nr_pmu; i++) {
<------><------>evsel = (struct evsel *) leaders[i];
<------><------>evsel->core.nr_members = total_members / nr_pmu;
<------><------>evsel->group_name = name ? strdup(name) : NULL;
<------>}
 
<------>/* Take the new small groups into account */
<------>parse_state->nr_groups += nr_pmu - 1;
 
handled:
<------>ret = 1;
out:
<------>free(leaders);
<------>return ret;
}
 
void parse_events__set_leader(char *name, struct list_head *list,
<------><------><------>      struct parse_events_state *parse_state)
{
<------>struct evsel *leader;
 
<------>if (list_empty(list)) {
<------><------>WARN_ONCE(true, "WARNING: failed to set leader: empty list");
<------><------>return;
<------>}
 
<------>if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state))
<------><------>return;
 
<------>__perf_evlist__set_leader(list);
<------>leader = list_entry(list->next, struct evsel, core.node);
<------>leader->group_name = name ? strdup(name) : NULL;
}
 
/* list_event is assumed to point to malloc'ed memory */
void parse_events_update_lists(struct list_head *list_event,
<------><------><------>       struct list_head *list_all)
{
<------>/*
<------> * Called for single event definition. Update the
<------> * 'all event' list, and reinit the 'single event'
<------> * list, for next event definition.
<------> */
<------>list_splice_tail(list_event, list_all);
<------>free(list_event);
}
 
struct event_modifier {
<------>int eu;
<------>int ek;
<------>int eh;
<------>int eH;
<------>int eG;
<------>int eI;
<------>int precise;
<------>int precise_max;
<------>int exclude_GH;
<------>int sample_read;
<------>int pinned;
<------>int weak;
<------>int exclusive;
};
 
static int get_event_modifier(struct event_modifier *mod, char *str,
<------><------><------>       struct evsel *evsel)
{
<------>int eu = evsel ? evsel->core.attr.exclude_user : 0;
<------>int ek = evsel ? evsel->core.attr.exclude_kernel : 0;
<------>int eh = evsel ? evsel->core.attr.exclude_hv : 0;
<------>int eH = evsel ? evsel->core.attr.exclude_host : 0;
<------>int eG = evsel ? evsel->core.attr.exclude_guest : 0;
<------>int eI = evsel ? evsel->core.attr.exclude_idle : 0;
<------>int precise = evsel ? evsel->core.attr.precise_ip : 0;
<------>int precise_max = 0;
<------>int sample_read = 0;
<------>int pinned = evsel ? evsel->core.attr.pinned : 0;
<------>int exclusive = evsel ? evsel->core.attr.exclusive : 0;
 
<------>int exclude = eu | ek | eh;
<------>int exclude_GH = evsel ? evsel->exclude_GH : 0;
<------>int weak = 0;
 
<------>memset(mod, 0, sizeof(*mod));
 
<------>while (*str) {
<------><------>if (*str == 'u') {
<------><------><------>if (!exclude)
<------><------><------><------>exclude = eu = ek = eh = 1;
<------><------><------>if (!exclude_GH && !perf_guest)
<------><------><------><------>eG = 1;
<------><------><------>eu = 0;
<------><------>} else if (*str == 'k') {
<------><------><------>if (!exclude)
<------><------><------><------>exclude = eu = ek = eh = 1;
<------><------><------>ek = 0;
<------><------>} else if (*str == 'h') {
<------><------><------>if (!exclude)
<------><------><------><------>exclude = eu = ek = eh = 1;
<------><------><------>eh = 0;
<------><------>} else if (*str == 'G') {
<------><------><------>if (!exclude_GH)
<------><------><------><------>exclude_GH = eG = eH = 1;
<------><------><------>eG = 0;
<------><------>} else if (*str == 'H') {
<------><------><------>if (!exclude_GH)
<------><------><------><------>exclude_GH = eG = eH = 1;
<------><------><------>eH = 0;
<------><------>} else if (*str == 'I') {
<------><------><------>eI = 1;
<------><------>} else if (*str == 'p') {
<------><------><------>precise++;
<------><------><------>/* use of precise requires exclude_guest */
<------><------><------>if (!exclude_GH)
<------><------><------><------>eG = 1;
<------><------>} else if (*str == 'P') {
<------><------><------>precise_max = 1;
<------><------>} else if (*str == 'S') {
<------><------><------>sample_read = 1;
<------><------>} else if (*str == 'D') {
<------><------><------>pinned = 1;
<------><------>} else if (*str == 'e') {
<------><------><------>exclusive = 1;
<------><------>} else if (*str == 'W') {
<------><------><------>weak = 1;
<------><------>} else
<------><------><------>break;
 
<------><------>++str;
<------>}
 
<------>/*
<------> * precise ip:
<------> *
<------> *  0 - SAMPLE_IP can have arbitrary skid
<------> *  1 - SAMPLE_IP must have constant skid
<------> *  2 - SAMPLE_IP requested to have 0 skid
<------> *  3 - SAMPLE_IP must have 0 skid
<------> *
<------> *  See also PERF_RECORD_MISC_EXACT_IP
<------> */
<------>if (precise > 3)
<------><------>return -EINVAL;
 
<------>mod->eu = eu;
<------>mod->ek = ek;
<------>mod->eh = eh;
<------>mod->eH = eH;
<------>mod->eG = eG;
<------>mod->eI = eI;
<------>mod->precise = precise;
<------>mod->precise_max = precise_max;
<------>mod->exclude_GH = exclude_GH;
<------>mod->sample_read = sample_read;
<------>mod->pinned = pinned;
<------>mod->weak = weak;
<------>mod->exclusive = exclusive;
 
<------>return 0;
}
 
/*
 * Basic modifier sanity check to validate it contains only one
 * instance of any modifier (apart from 'p') present.
 */
static int check_modifier(char *str)
{
<------>char *p = str;
 
<------>/* The sizeof includes 0 byte as well. */
<------>if (strlen(str) > (sizeof("ukhGHpppPSDIWe") - 1))
<------><------>return -1;
 
<------>while (*p) {
<------><------>if (*p != 'p' && strchr(p + 1, *p))
<------><------><------>return -1;
<------><------>p++;
<------>}
 
<------>return 0;
}
 
int parse_events__modifier_event(struct list_head *list, char *str, bool add)
{
<------>struct evsel *evsel;
<------>struct event_modifier mod;
 
<------>if (str == NULL)
<------><------>return 0;
 
<------>if (check_modifier(str))
<------><------>return -EINVAL;
 
<------>if (!add && get_event_modifier(&mod, str, NULL))
<------><------>return -EINVAL;
 
<------>__evlist__for_each_entry(list, evsel) {
<------><------>if (add && get_event_modifier(&mod, str, evsel))
<------><------><------>return -EINVAL;
 
<------><------>evsel->core.attr.exclude_user   = mod.eu;
<------><------>evsel->core.attr.exclude_kernel = mod.ek;
<------><------>evsel->core.attr.exclude_hv     = mod.eh;
<------><------>evsel->core.attr.precise_ip     = mod.precise;
<------><------>evsel->core.attr.exclude_host   = mod.eH;
<------><------>evsel->core.attr.exclude_guest  = mod.eG;
<------><------>evsel->core.attr.exclude_idle   = mod.eI;
<------><------>evsel->exclude_GH          = mod.exclude_GH;
<------><------>evsel->sample_read         = mod.sample_read;
<------><------>evsel->precise_max         = mod.precise_max;
<------><------>evsel->weak_group	   = mod.weak;
 
<------><------>if (evsel__is_group_leader(evsel)) {
<------><------><------>evsel->core.attr.pinned = mod.pinned;
<------><------><------>evsel->core.attr.exclusive = mod.exclusive;
<------><------>}
<------>}
 
<------>return 0;
}
 
int parse_events_name(struct list_head *list, char *name)
{
<------>struct evsel *evsel;
 
<------>__evlist__for_each_entry(list, evsel) {
<------><------>if (!evsel->name)
<------><------><------>evsel->name = strdup(name);
<------>}
 
<------>return 0;
}
 
static int
comp_pmu(const void *p1, const void *p2)
{
<------>struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
<------>struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
 
<------>return strcasecmp(pmu1->symbol, pmu2->symbol);
}
 
static void perf_pmu__parse_cleanup(void)
{
<------>if (perf_pmu_events_list_num > 0) {
<------><------>struct perf_pmu_event_symbol *p;
<------><------>int i;
 
<------><------>for (i = 0; i < perf_pmu_events_list_num; i++) {
<------><------><------>p = perf_pmu_events_list + i;
<------><------><------>zfree(&p->symbol);
<------><------>}
<------><------>zfree(&perf_pmu_events_list);
<------><------>perf_pmu_events_list_num = 0;
<------>}
}
 
#define SET_SYMBOL(str, stype)		\
do {					\
<------>p->symbol = str;		\
<------>if (!p->symbol)			\
<------><------>goto err;		\
<------>p->type = stype;		\
} while (0)
 
/*
 * Read the pmu events list from sysfs
 * Save it into perf_pmu_events_list
 */
static void perf_pmu__parse_init(void)
{
 
<------>struct perf_pmu *pmu = NULL;
<------>struct perf_pmu_alias *alias;
<------>int len = 0;
 
<------>pmu = NULL;
<------>while ((pmu = perf_pmu__scan(pmu)) != NULL) {
<------><------>list_for_each_entry(alias, &pmu->aliases, list) {
<------><------><------>if (strchr(alias->name, '-'))
<------><------><------><------>len++;
<------><------><------>len++;
<------><------>}
<------>}
 
<------>if (len == 0) {
<------><------>perf_pmu_events_list_num = -1;
<------><------>return;
<------>}
<------>perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
<------>if (!perf_pmu_events_list)
<------><------>return;
<------>perf_pmu_events_list_num = len;
 
<------>len = 0;
<------>pmu = NULL;
<------>while ((pmu = perf_pmu__scan(pmu)) != NULL) {
<------><------>list_for_each_entry(alias, &pmu->aliases, list) {
<------><------><------>struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
<------><------><------>char *tmp = strchr(alias->name, '-');
 
<------><------><------>if (tmp != NULL) {
<------><------><------><------>SET_SYMBOL(strndup(alias->name, tmp - alias->name),
<------><------><------><------><------><------>PMU_EVENT_SYMBOL_PREFIX);
<------><------><------><------>p++;
<------><------><------><------>SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
<------><------><------><------>len += 2;
<------><------><------>} else {
<------><------><------><------>SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
<------><------><------><------>len++;
<------><------><------>}
<------><------>}
<------>}
<------>qsort(perf_pmu_events_list, len,
<------><------>sizeof(struct perf_pmu_event_symbol), comp_pmu);
 
<------>return;
err:
<------>perf_pmu__parse_cleanup();
}
 
/*
 * This function injects special term in
 * perf_pmu_events_list so the test code
 * can check on this functionality.
 */
int perf_pmu__test_parse_init(void)
{
<------>struct perf_pmu_event_symbol *list;
 
<------>list = malloc(sizeof(*list) * 1);
<------>if (!list)
<------><------>return -ENOMEM;
 
<------>list->type   = PMU_EVENT_SYMBOL;
<------>list->symbol = strdup("read");
 
<------>if (!list->symbol) {
<------><------>free(list);
<------><------>return -ENOMEM;
<------>}
 
<------>perf_pmu_events_list = list;
<------>perf_pmu_events_list_num = 1;
<------>return 0;
}
 
enum perf_pmu_event_symbol_type
perf_pmu__parse_check(const char *name)
{
<------>struct perf_pmu_event_symbol p, *r;
 
<------>/* scan kernel pmu events from sysfs if needed */
<------>if (perf_pmu_events_list_num == 0)
<------><------>perf_pmu__parse_init();
<------>/*
<------> * name "cpu" could be prefix of cpu-cycles or cpu// events.
<------> * cpu-cycles has been handled by hardcode.
<------> * So it must be cpu// events, not kernel pmu event.
<------> */
<------>if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
<------><------>return PMU_EVENT_SYMBOL_ERR;
 
<------>p.symbol = strdup(name);
<------>r = bsearch(&p, perf_pmu_events_list,
<------><------><------>(size_t) perf_pmu_events_list_num,
<------><------><------>sizeof(struct perf_pmu_event_symbol), comp_pmu);
<------>zfree(&p.symbol);
<------>return r ? r->type : PMU_EVENT_SYMBOL_ERR;
}
 
static int parse_events__scanner(const char *str,
<------><------><------><------> struct parse_events_state *parse_state)
{
<------>YY_BUFFER_STATE buffer;
<------>void *scanner;
<------>int ret;
 
<------>ret = parse_events_lex_init_extra(parse_state, &scanner);
<------>if (ret)
<------><------>return ret;
 
<------>buffer = parse_events__scan_string(str, scanner);
 
#ifdef PARSER_DEBUG
<------>parse_events_debug = 1;
<------>parse_events_set_debug(1, scanner);
#endif
<------>ret = parse_events_parse(parse_state, scanner);
 
<------>parse_events__flush_buffer(buffer, scanner);
<------>parse_events__delete_buffer(buffer, scanner);
<------>parse_events_lex_destroy(scanner);
<------>return ret;
}
 
/*
 * parse event config string, return a list of event terms.
 */
int parse_events_terms(struct list_head *terms, const char *str)
{
<------>struct parse_events_state parse_state = {
<------><------>.terms  = NULL,
<------><------>.stoken = PE_START_TERMS,
<------>};
<------>int ret;
 
<------>ret = parse_events__scanner(str, &parse_state);
<------>perf_pmu__parse_cleanup();
 
<------>if (!ret) {
<------><------>list_splice(parse_state.terms, terms);
<------><------>zfree(&parse_state.terms);
<------><------>return 0;
<------>}
 
<------>parse_events_terms__delete(parse_state.terms);
<------>return ret;
}
 
int __parse_events(struct evlist *evlist, const char *str,
<------><------>   struct parse_events_error *err, struct perf_pmu *fake_pmu)
{
<------>struct parse_events_state parse_state = {
<------><------>.list	  = LIST_HEAD_INIT(parse_state.list),
<------><------>.idx	  = evlist->core.nr_entries,
<------><------>.error	  = err,
<------><------>.evlist	  = evlist,
<------><------>.stoken	  = PE_START_EVENTS,
<------><------>.fake_pmu = fake_pmu,
<------>};
<------>int ret;
 
<------>ret = parse_events__scanner(str, &parse_state);
<------>perf_pmu__parse_cleanup();
 
<------>if (!ret && list_empty(&parse_state.list)) {
<------><------>WARN_ONCE(true, "WARNING: event parser found nothing\n");
<------><------>return -1;
<------>}
 
<------>/*
<------> * Add list to the evlist even with errors to allow callers to clean up.
<------> */
<------>perf_evlist__splice_list_tail(evlist, &parse_state.list);
 
<------>if (!ret) {
<------><------>struct evsel *last;
 
<------><------>evlist->nr_groups += parse_state.nr_groups;
<------><------>last = evlist__last(evlist);
<------><------>last->cmdline_group_boundary = true;
 
<------><------>return 0;
<------>}
 
<------>/*
<------> * There are 2 users - builtin-record and builtin-test objects.
<------> * Both call evlist__delete in case of error, so we dont
<------> * need to bother.
<------> */
<------>return ret;
}
 
#define MAX_WIDTH 1000
static int get_term_width(void)
{
<------>struct winsize ws;
 
<------>get_term_dimensions(&ws);
<------>return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
}
 
static void __parse_events_print_error(int err_idx, const char *err_str,
<------><------><------><------>const char *err_help, const char *event)
{
<------>const char *str = "invalid or unsupported event: ";
<------>char _buf[MAX_WIDTH];
<------>char *buf = (char *) event;
<------>int idx = 0;
<------>if (err_str) {
<------><------>/* -2 for extra '' in the final fprintf */
<------><------>int width       = get_term_width() - 2;
<------><------>int len_event   = strlen(event);
<------><------>int len_str, max_len, cut = 0;
 
<------><------>/*
<------><------> * Maximum error index indent, we will cut
<------><------> * the event string if it's bigger.
<------><------> */
<------><------>int max_err_idx = 13;
 
<------><------>/*
<------><------> * Let's be specific with the message when
<------><------> * we have the precise error.
<------><------> */
<------><------>str     = "event syntax error: ";
<------><------>len_str = strlen(str);
<------><------>max_len = width - len_str;
 
<------><------>buf = _buf;
 
<------><------>/* We're cutting from the beginning. */
<------><------>if (err_idx > max_err_idx)
<------><------><------>cut = err_idx - max_err_idx;
 
<------><------>strncpy(buf, event + cut, max_len);
 
<------><------>/* Mark cut parts with '..' on both sides. */
<------><------>if (cut)
<------><------><------>buf[0] = buf[1] = '.';
 
<------><------>if ((len_event - cut) > max_len) {
<------><------><------>buf[max_len - 1] = buf[max_len - 2] = '.';
<------><------><------>buf[max_len] = 0;
<------><------>}
 
<------><------>idx = len_str + err_idx - cut;
<------>}
 
<------>fprintf(stderr, "%s'%s'\n", str, buf);
<------>if (idx) {
<------><------>fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str);
<------><------>if (err_help)
<------><------><------>fprintf(stderr, "\n%s\n", err_help);
<------>}
}
 
void parse_events_print_error(struct parse_events_error *err,
<------><------><------>      const char *event)
{
<------>if (!err->num_errors)
<------><------>return;
 
<------>__parse_events_print_error(err->idx, err->str, err->help, event);
<------>zfree(&err->str);
<------>zfree(&err->help);
 
<------>if (err->num_errors > 1) {
<------><------>fputs("\nInitial error:\n", stderr);
<------><------>__parse_events_print_error(err->first_idx, err->first_str,
<------><------><------><------><------>err->first_help, event);
<------><------>zfree(&err->first_str);
<------><------>zfree(&err->first_help);
<------>}
}
 
#undef MAX_WIDTH
 
int parse_events_option(const struct option *opt, const char *str,
<------><------><------>int unset __maybe_unused)
{
<------>struct evlist *evlist = *(struct evlist **)opt->value;
<------>struct parse_events_error err;
<------>int ret;
 
<------>bzero(&err, sizeof(err));
<------>ret = parse_events(evlist, str, &err);
 
<------>if (ret) {
<------><------>parse_events_print_error(&err, str);
<------><------>fprintf(stderr, "Run 'perf list' for a list of valid events\n");
<------>}
 
<------>return ret;
}
 
int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset)
{
<------>struct evlist **evlistp = opt->value;
<------>int ret;
 
<------>if (*evlistp == NULL) {
<------><------>*evlistp = evlist__new();
 
<------><------>if (*evlistp == NULL) {
<------><------><------>fprintf(stderr, "Not enough memory to create evlist\n");
<------><------><------>return -1;
<------><------>}
<------>}
 
<------>ret = parse_events_option(opt, str, unset);
<------>if (ret) {
<------><------>evlist__delete(*evlistp);
<------><------>*evlistp = NULL;
<------>}
 
<------>return ret;
}
 
static int
foreach_evsel_in_last_glob(struct evlist *evlist,
<------><------><------>   int (*func)(struct evsel *evsel,
<------><------><------><------>       const void *arg),
<------><------><------>   const void *arg)
{
<------>struct evsel *last = NULL;
<------>int err;
 
<------>/*
<------> * Don't return when list_empty, give func a chance to report
<------> * error when it found last == NULL.
<------> *
<------> * So no need to WARN here, let *func do this.
<------> */
<------>if (evlist->core.nr_entries > 0)
<------><------>last = evlist__last(evlist);
 
<------>do {
<------><------>err = (*func)(last, arg);
<------><------>if (err)
<------><------><------>return -1;
<------><------>if (!last)
<------><------><------>return 0;
 
<------><------>if (last->core.node.prev == &evlist->core.entries)
<------><------><------>return 0;
<------><------>last = list_entry(last->core.node.prev, struct evsel, core.node);
<------>} while (!last->cmdline_group_boundary);
 
<------>return 0;
}
 
static int set_filter(struct evsel *evsel, const void *arg)
{
<------>const char *str = arg;
<------>bool found = false;
<------>int nr_addr_filters = 0;
<------>struct perf_pmu *pmu = NULL;
 
<------>if (evsel == NULL) {
<------><------>fprintf(stderr,
<------><------><------>"--filter option should follow a -e tracepoint or HW tracer option\n");
<------><------>return -1;
<------>}
 
<------>if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {
<------><------>if (evsel__append_tp_filter(evsel, str) < 0) {
<------><------><------>fprintf(stderr,
<------><------><------><------>"not enough memory to hold filter string\n");
<------><------><------>return -1;
<------><------>}
 
<------><------>return 0;
<------>}
 
<------>while ((pmu = perf_pmu__scan(pmu)) != NULL)
<------><------>if (pmu->type == evsel->core.attr.type) {
<------><------><------>found = true;
<------><------><------>break;
<------><------>}
 
<------>if (found)
<------><------>perf_pmu__scan_file(pmu, "nr_addr_filters",
<------><------><------><------>    "%d", &nr_addr_filters);
 
<------>if (!nr_addr_filters) {
<------><------>fprintf(stderr,
<------><------><------>"This CPU does not support address filtering\n");
<------><------>return -1;
<------>}
 
<------>if (evsel__append_addr_filter(evsel, str) < 0) {
<------><------>fprintf(stderr,
<------><------><------>"not enough memory to hold filter string\n");
<------><------>return -1;
<------>}
 
<------>return 0;
}
 
int parse_filter(const struct option *opt, const char *str,
<------><------> int unset __maybe_unused)
{
<------>struct evlist *evlist = *(struct evlist **)opt->value;
 
<------>return foreach_evsel_in_last_glob(evlist, set_filter,
<------><------><------><------><------>  (const void *)str);
}
 
static int add_exclude_perf_filter(struct evsel *evsel,
<------><------><------><------>   const void *arg __maybe_unused)
{
<------>char new_filter[64];
 
<------>if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
<------><------>fprintf(stderr,
<------><------><------>"--exclude-perf option should follow a -e tracepoint option\n");
<------><------>return -1;
<------>}
 
<------>snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
 
<------>if (evsel__append_tp_filter(evsel, new_filter) < 0) {
<------><------>fprintf(stderr,
<------><------><------>"not enough memory to hold filter string\n");
<------><------>return -1;
<------>}
 
<------>return 0;
}
 
int exclude_perf(const struct option *opt,
<------><------> const char *arg __maybe_unused,
<------><------> int unset __maybe_unused)
{
<------>struct evlist *evlist = *(struct evlist **)opt->value;
 
<------>return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
<------><------><------><------><------>  NULL);
}
 
static const char * const event_type_descriptors[] = {
<------>"Hardware event",
<------>"Software event",
<------>"Tracepoint event",
<------>"Hardware cache event",
<------>"Raw hardware event descriptor",
<------>"Hardware breakpoint",
};
 
static int cmp_string(const void *a, const void *b)
{
<------>const char * const *as = a;
<------>const char * const *bs = b;
 
<------>return strcmp(*as, *bs);
}
 
/*
 * Print the events from <debugfs_mount_point>/tracing/events
 */
 
void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
<------><------><------>     bool name_only)
{
<------>DIR *sys_dir, *evt_dir;
<------>struct dirent *sys_dirent, *evt_dirent;
<------>char evt_path[MAXPATHLEN];
<------>char *dir_path;
<------>char **evt_list = NULL;
<------>unsigned int evt_i = 0, evt_num = 0;
<------>bool evt_num_known = false;
 
restart:
<------>sys_dir = tracing_events__opendir();
<------>if (!sys_dir)
<------><------>return;
 
<------>if (evt_num_known) {
<------><------>evt_list = zalloc(sizeof(char *) * evt_num);
<------><------>if (!evt_list)
<------><------><------>goto out_close_sys_dir;
<------>}
 
<------>for_each_subsystem(sys_dir, sys_dirent) {
<------><------>if (subsys_glob != NULL &&
<------><------>    !strglobmatch(sys_dirent->d_name, subsys_glob))
<------><------><------>continue;
 
<------><------>dir_path = get_events_file(sys_dirent->d_name);
<------><------>if (!dir_path)
<------><------><------>continue;
<------><------>evt_dir = opendir(dir_path);
<------><------>if (!evt_dir)
<------><------><------>goto next;
 
<------><------>for_each_event(dir_path, evt_dir, evt_dirent) {
<------><------><------>if (event_glob != NULL &&
<------><------><------>    !strglobmatch(evt_dirent->d_name, event_glob))
<------><------><------><------>continue;
 
<------><------><------>if (!evt_num_known) {
<------><------><------><------>evt_num++;
<------><------><------><------>continue;
<------><------><------>}
 
<------><------><------>snprintf(evt_path, MAXPATHLEN, "%s:%s",
<------><------><------><------> sys_dirent->d_name, evt_dirent->d_name);
 
<------><------><------>evt_list[evt_i] = strdup(evt_path);
<------><------><------>if (evt_list[evt_i] == NULL) {
<------><------><------><------>put_events_file(dir_path);
<------><------><------><------>goto out_close_evt_dir;
<------><------><------>}
<------><------><------>evt_i++;
<------><------>}
<------><------>closedir(evt_dir);
next:
<------><------>put_events_file(dir_path);
<------>}
<------>closedir(sys_dir);
 
<------>if (!evt_num_known) {
<------><------>evt_num_known = true;
<------><------>goto restart;
<------>}
<------>qsort(evt_list, evt_num, sizeof(char *), cmp_string);
<------>evt_i = 0;
<------>while (evt_i < evt_num) {
<------><------>if (name_only) {
<------><------><------>printf("%s ", evt_list[evt_i++]);
<------><------><------>continue;
<------><------>}
<------><------>printf("  %-50s [%s]\n", evt_list[evt_i++],
<------><------><------><------>event_type_descriptors[PERF_TYPE_TRACEPOINT]);
<------>}
<------>if (evt_num && pager_in_use())
<------><------>printf("\n");
 
out_free:
<------>evt_num = evt_i;
<------>for (evt_i = 0; evt_i < evt_num; evt_i++)
<------><------>zfree(&evt_list[evt_i]);
<------>zfree(&evt_list);
<------>return;
 
out_close_evt_dir:
<------>closedir(evt_dir);
out_close_sys_dir:
<------>closedir(sys_dir);
 
<------>printf("FATAL: not enough memory to print %s\n",
<------><------><------>event_type_descriptors[PERF_TYPE_TRACEPOINT]);
<------>if (evt_list)
<------><------>goto out_free;
}
 
/*
 * Check whether event is in <debugfs_mount_point>/tracing/events
 */
 
int is_valid_tracepoint(const char *event_string)
{
<------>DIR *sys_dir, *evt_dir;
<------>struct dirent *sys_dirent, *evt_dirent;
<------>char evt_path[MAXPATHLEN];
<------>char *dir_path;
 
<------>sys_dir = tracing_events__opendir();
<------>if (!sys_dir)
<------><------>return 0;
 
<------>for_each_subsystem(sys_dir, sys_dirent) {
<------><------>dir_path = get_events_file(sys_dirent->d_name);
<------><------>if (!dir_path)
<------><------><------>continue;
<------><------>evt_dir = opendir(dir_path);
<------><------>if (!evt_dir)
<------><------><------>goto next;
 
<------><------>for_each_event(dir_path, evt_dir, evt_dirent) {
<------><------><------>snprintf(evt_path, MAXPATHLEN, "%s:%s",
<------><------><------><------> sys_dirent->d_name, evt_dirent->d_name);
<------><------><------>if (!strcmp(evt_path, event_string)) {
<------><------><------><------>closedir(evt_dir);
<------><------><------><------>closedir(sys_dir);
<------><------><------><------>return 1;
<------><------><------>}
<------><------>}
<------><------>closedir(evt_dir);
next:
<------><------>put_events_file(dir_path);
<------>}
<------>closedir(sys_dir);
<------>return 0;
}
 
static bool is_event_supported(u8 type, unsigned config)
{
<------>bool ret = true;
<------>int open_return;
<------>struct evsel *evsel;
<------>struct perf_event_attr attr = {
<------><------>.type = type,
<------><------>.config = config,
<------><------>.disabled = 1,
<------>};
<------>struct perf_thread_map *tmap = thread_map__new_by_tid(0);
 
<------>if (tmap == NULL)
<------><------>return false;
 
<------>evsel = evsel__new(&attr);
<------>if (evsel) {
<------><------>open_return = evsel__open(evsel, NULL, tmap);
<------><------>ret = open_return >= 0;
 
<------><------>if (open_return == -EACCES) {
<------><------><------>/*
<------><------><------> * This happens if the paranoid value
<------><------><------> * /proc/sys/kernel/perf_event_paranoid is set to 2
<------><------><------> * Re-run with exclude_kernel set; we don't do that
<------><------><------> * by default as some ARM machines do not support it.
<------><------><------> *
<------><------><------> */
<------><------><------>evsel->core.attr.exclude_kernel = 1;
<------><------><------>ret = evsel__open(evsel, NULL, tmap) >= 0;
<------><------>}
<------><------>evsel__delete(evsel);
<------>}
 
<------>perf_thread_map__put(tmap);
<------>return ret;
}
 
void print_sdt_events(const char *subsys_glob, const char *event_glob,
<------><------>      bool name_only)
{
<------>struct probe_cache *pcache;
<------>struct probe_cache_entry *ent;
<------>struct strlist *bidlist, *sdtlist;
<------>struct strlist_config cfg = {.dont_dupstr = true};
<------>struct str_node *nd, *nd2;
<------>char *buf, *path, *ptr = NULL;
<------>bool show_detail = false;
<------>int ret;
 
<------>sdtlist = strlist__new(NULL, &cfg);
<------>if (!sdtlist) {
<------><------>pr_debug("Failed to allocate new strlist for SDT\n");
<------><------>return;
<------>}
<------>bidlist = build_id_cache__list_all(true);
<------>if (!bidlist) {
<------><------>pr_debug("Failed to get buildids: %d\n", errno);
<------><------>return;
<------>}
<------>strlist__for_each_entry(nd, bidlist) {
<------><------>pcache = probe_cache__new(nd->s, NULL);
<------><------>if (!pcache)
<------><------><------>continue;
<------><------>list_for_each_entry(ent, &pcache->entries, node) {
<------><------><------>if (!ent->sdt)
<------><------><------><------>continue;
<------><------><------>if (subsys_glob &&
<------><------><------>    !strglobmatch(ent->pev.group, subsys_glob))
<------><------><------><------>continue;
<------><------><------>if (event_glob &&
<------><------><------>    !strglobmatch(ent->pev.event, event_glob))
<------><------><------><------>continue;
<------><------><------>ret = asprintf(&buf, "%s:%s@%s", ent->pev.group,
<------><------><------><------><------>ent->pev.event, nd->s);
<------><------><------>if (ret > 0)
<------><------><------><------>strlist__add(sdtlist, buf);
<------><------>}
<------><------>probe_cache__delete(pcache);
<------>}
<------>strlist__delete(bidlist);
 
<------>strlist__for_each_entry(nd, sdtlist) {
<------><------>buf = strchr(nd->s, '@');
<------><------>if (buf)
<------><------><------>*(buf++) = '\0';
<------><------>if (name_only) {
<------><------><------>printf("%s ", nd->s);
<------><------><------>continue;
<------><------>}
<------><------>nd2 = strlist__next(nd);
<------><------>if (nd2) {
<------><------><------>ptr = strchr(nd2->s, '@');
<------><------><------>if (ptr)
<------><------><------><------>*ptr = '\0';
<------><------><------>if (strcmp(nd->s, nd2->s) == 0)
<------><------><------><------>show_detail = true;
<------><------>}
<------><------>if (show_detail) {
<------><------><------>path = build_id_cache__origname(buf);
<------><------><------>ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf);
<------><------><------>if (ret > 0) {
<------><------><------><------>printf("  %-50s [%s]\n", buf, "SDT event");
<------><------><------><------>free(buf);
<------><------><------>}
<------><------><------>free(path);
<------><------>} else
<------><------><------>printf("  %-50s [%s]\n", nd->s, "SDT event");
<------><------>if (nd2) {
<------><------><------>if (strcmp(nd->s, nd2->s) != 0)
<------><------><------><------>show_detail = false;
<------><------><------>if (ptr)
<------><------><------><------>*ptr = '@';
<------><------>}
<------>}
<------>strlist__delete(sdtlist);
}
 
int print_hwcache_events(const char *event_glob, bool name_only)
{
<------>unsigned int type, op, i, evt_i = 0, evt_num = 0;
<------>char name[64];
<------>char **evt_list = NULL;
<------>bool evt_num_known = false;
 
restart:
<------>if (evt_num_known) {
<------><------>evt_list = zalloc(sizeof(char *) * evt_num);
<------><------>if (!evt_list)
<------><------><------>goto out_enomem;
<------>}
 
<------>for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
<------><------>for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
<------><------><------>/* skip invalid cache type */
<------><------><------>if (!evsel__is_cache_op_valid(type, op))
<------><------><------><------>continue;
 
<------><------><------>for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
<------><------><------><------>__evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
<------><------><------><------>if (event_glob != NULL && !strglobmatch(name, event_glob))
<------><------><------><------><------>continue;
 
<------><------><------><------>if (!is_event_supported(PERF_TYPE_HW_CACHE,
<------><------><------><------><------><------><------>type | (op << 8) | (i << 16)))
<------><------><------><------><------>continue;
 
<------><------><------><------>if (!evt_num_known) {
<------><------><------><------><------>evt_num++;
<------><------><------><------><------>continue;
<------><------><------><------>}
 
<------><------><------><------>evt_list[evt_i] = strdup(name);
<------><------><------><------>if (evt_list[evt_i] == NULL)
<------><------><------><------><------>goto out_enomem;
<------><------><------><------>evt_i++;
<------><------><------>}
<------><------>}
<------>}
 
<------>if (!evt_num_known) {
<------><------>evt_num_known = true;
<------><------>goto restart;
<------>}
<------>qsort(evt_list, evt_num, sizeof(char *), cmp_string);
<------>evt_i = 0;
<------>while (evt_i < evt_num) {
<------><------>if (name_only) {
<------><------><------>printf("%s ", evt_list[evt_i++]);
<------><------><------>continue;
<------><------>}
<------><------>printf("  %-50s [%s]\n", evt_list[evt_i++],
<------><------><------><------>event_type_descriptors[PERF_TYPE_HW_CACHE]);
<------>}
<------>if (evt_num && pager_in_use())
<------><------>printf("\n");
 
out_free:
<------>evt_num = evt_i;
<------>for (evt_i = 0; evt_i < evt_num; evt_i++)
<------><------>zfree(&evt_list[evt_i]);
<------>zfree(&evt_list);
<------>return evt_num;
 
out_enomem:
<------>printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
<------>if (evt_list)
<------><------>goto out_free;
<------>return evt_num;
}
 
static void print_tool_event(const char *name, const char *event_glob,
<------><------><------>     bool name_only)
{
<------>if (event_glob && !strglobmatch(name, event_glob))
<------><------>return;
<------>if (name_only)
<------><------>printf("%s ", name);
<------>else
<------><------>printf("  %-50s [%s]\n", name, "Tool event");
 
}
 
void print_tool_events(const char *event_glob, bool name_only)
{
<------>print_tool_event("duration_time", event_glob, name_only);
<------>if (pager_in_use())
<------><------>printf("\n");
}
 
void print_symbol_events(const char *event_glob, unsigned type,
<------><------><------><------>struct event_symbol *syms, unsigned max,
<------><------><------><------>bool name_only)
{
<------>unsigned int i, evt_i = 0, evt_num = 0;
<------>char name[MAX_NAME_LEN];
<------>char **evt_list = NULL;
<------>bool evt_num_known = false;
 
restart:
<------>if (evt_num_known) {
<------><------>evt_list = zalloc(sizeof(char *) * evt_num);
<------><------>if (!evt_list)
<------><------><------>goto out_enomem;
<------><------>syms -= max;
<------>}
 
<------>for (i = 0; i < max; i++, syms++) {
 
<------><------>if (event_glob != NULL && syms->symbol != NULL &&
<------><------>    !(strglobmatch(syms->symbol, event_glob) ||
<------><------>      (syms->alias && strglobmatch(syms->alias, event_glob))))
<------><------><------>continue;
 
<------><------>if (!is_event_supported(type, i))
<------><------><------>continue;
 
<------><------>if (!evt_num_known) {
<------><------><------>evt_num++;
<------><------><------>continue;
<------><------>}
 
<------><------>if (!name_only && strlen(syms->alias))
<------><------><------>snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
<------><------>else
<------><------><------>strlcpy(name, syms->symbol, MAX_NAME_LEN);
 
<------><------>evt_list[evt_i] = strdup(name);
<------><------>if (evt_list[evt_i] == NULL)
<------><------><------>goto out_enomem;
<------><------>evt_i++;
<------>}
 
<------>if (!evt_num_known) {
<------><------>evt_num_known = true;
<------><------>goto restart;
<------>}
<------>qsort(evt_list, evt_num, sizeof(char *), cmp_string);
<------>evt_i = 0;
<------>while (evt_i < evt_num) {
<------><------>if (name_only) {
<------><------><------>printf("%s ", evt_list[evt_i++]);
<------><------><------>continue;
<------><------>}
<------><------>printf("  %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
<------>}
<------>if (evt_num && pager_in_use())
<------><------>printf("\n");
 
out_free:
<------>evt_num = evt_i;
<------>for (evt_i = 0; evt_i < evt_num; evt_i++)
<------><------>zfree(&evt_list[evt_i]);
<------>zfree(&evt_list);
<------>return;
 
out_enomem:
<------>printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
<------>if (evt_list)
<------><------>goto out_free;
}
 
/*
 * Print the help text for the event symbols:
 */
void print_events(const char *event_glob, bool name_only, bool quiet_flag,
<------><------><------>bool long_desc, bool details_flag, bool deprecated)
{
<------>print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
<------><------><------>    event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
 
<------>print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
<------><------><------>    event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
<------>print_tool_events(event_glob, name_only);
 
<------>print_hwcache_events(event_glob, name_only);
 
<------>print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
<------><------><------>details_flag, deprecated);
 
<------>if (event_glob != NULL)
<------><------>return;
 
<------>if (!name_only) {
<------><------>printf("  %-50s [%s]\n",
<------><------>       "rNNN",
<------><------>       event_type_descriptors[PERF_TYPE_RAW]);
<------><------>printf("  %-50s [%s]\n",
<------><------>       "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
<------><------>       event_type_descriptors[PERF_TYPE_RAW]);
<------><------>if (pager_in_use())
<------><------><------>printf("   (see 'man perf-list' on how to encode it)\n\n");
 
<------><------>printf("  %-50s [%s]\n",
<------><------>       "mem:<addr>[/len][:access]",
<------><------><------>event_type_descriptors[PERF_TYPE_BREAKPOINT]);
<------><------>if (pager_in_use())
<------><------><------>printf("\n");
<------>}
 
<------>print_tracepoint_events(NULL, NULL, name_only);
 
<------>print_sdt_events(NULL, NULL, name_only);
 
<------>metricgroup__print(true, true, NULL, name_only, details_flag);
 
<------>print_libpfm_events(name_only, long_desc);
}
 
int parse_events__is_hardcoded_term(struct parse_events_term *term)
{
<------>return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
}
 
static int new_term(struct parse_events_term **_term,
<------><------>    struct parse_events_term *temp,
<------><------>    char *str, u64 num)
{
<------>struct parse_events_term *term;
 
<------>term = malloc(sizeof(*term));
<------>if (!term)
<------><------>return -ENOMEM;
 
<------>*term = *temp;
<------>INIT_LIST_HEAD(&term->list);
<------>term->weak = false;
 
<------>switch (term->type_val) {
<------>case PARSE_EVENTS__TERM_TYPE_NUM:
<------><------>term->val.num = num;
<------><------>break;
<------>case PARSE_EVENTS__TERM_TYPE_STR:
<------><------>term->val.str = str;
<------><------>break;
<------>default:
<------><------>free(term);
<------><------>return -EINVAL;
<------>}
 
<------>*_term = term;
<------>return 0;
}
 
int parse_events_term__num(struct parse_events_term **term,
<------><------><------>   int type_term, char *config, u64 num,
<------><------><------>   bool no_value,
<------><------><------>   void *loc_term_, void *loc_val_)
{
<------>YYLTYPE *loc_term = loc_term_;
<------>YYLTYPE *loc_val = loc_val_;
 
<------>struct parse_events_term temp = {
<------><------>.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
<------><------>.type_term = type_term,
<------><------>.config    = config,
<------><------>.no_value  = no_value,
<------><------>.err_term  = loc_term ? loc_term->first_column : 0,
<------><------>.err_val   = loc_val  ? loc_val->first_column  : 0,
<------>};
 
<------>return new_term(term, &temp, NULL, num);
}
 
int parse_events_term__str(struct parse_events_term **term,
<------><------><------>   int type_term, char *config, char *str,
<------><------><------>   void *loc_term_, void *loc_val_)
{
<------>YYLTYPE *loc_term = loc_term_;
<------>YYLTYPE *loc_val = loc_val_;
 
<------>struct parse_events_term temp = {
<------><------>.type_val  = PARSE_EVENTS__TERM_TYPE_STR,
<------><------>.type_term = type_term,
<------><------>.config    = config,
<------><------>.err_term  = loc_term ? loc_term->first_column : 0,
<------><------>.err_val   = loc_val  ? loc_val->first_column  : 0,
<------>};
 
<------>return new_term(term, &temp, str, 0);
}
 
int parse_events_term__sym_hw(struct parse_events_term **term,
<------><------><------>      char *config, unsigned idx)
{
<------>struct event_symbol *sym;
<------>char *str;
<------>struct parse_events_term temp = {
<------><------>.type_val  = PARSE_EVENTS__TERM_TYPE_STR,
<------><------>.type_term = PARSE_EVENTS__TERM_TYPE_USER,
<------><------>.config    = config,
<------>};
 
<------>if (!temp.config) {
<------><------>temp.config = strdup("event");
<------><------>if (!temp.config)
<------><------><------>return -ENOMEM;
<------>}
<------>BUG_ON(idx >= PERF_COUNT_HW_MAX);
<------>sym = &event_symbols_hw[idx];
 
<------>str = strdup(sym->symbol);
<------>if (!str)
<------><------>return -ENOMEM;
<------>return new_term(term, &temp, str, 0);
}
 
int parse_events_term__clone(struct parse_events_term **new,
<------><------><------>     struct parse_events_term *term)
{
<------>char *str;
<------>struct parse_events_term temp = {
<------><------>.type_val  = term->type_val,
<------><------>.type_term = term->type_term,
<------><------>.config    = NULL,
<------><------>.err_term  = term->err_term,
<------><------>.err_val   = term->err_val,
<------>};
 
<------>if (term->config) {
<------><------>temp.config = strdup(term->config);
<------><------>if (!temp.config)
<------><------><------>return -ENOMEM;
<------>}
<------>if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
<------><------>return new_term(new, &temp, NULL, term->val.num);
 
<------>str = strdup(term->val.str);
<------>if (!str)
<------><------>return -ENOMEM;
<------>return new_term(new, &temp, str, 0);
}
 
void parse_events_term__delete(struct parse_events_term *term)
{
<------>if (term->array.nr_ranges)
<------><------>zfree(&term->array.ranges);
 
<------>if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
<------><------>zfree(&term->val.str);
 
<------>zfree(&term->config);
<------>free(term);
}
 
int parse_events_copy_term_list(struct list_head *old,
<------><------><------><------> struct list_head **new)
{
<------>struct parse_events_term *term, *n;
<------>int ret;
 
<------>if (!old) {
<------><------>*new = NULL;
<------><------>return 0;
<------>}
 
<------>*new = malloc(sizeof(struct list_head));
<------>if (!*new)
<------><------>return -ENOMEM;
<------>INIT_LIST_HEAD(*new);
 
<------>list_for_each_entry (term, old, list) {
<------><------>ret = parse_events_term__clone(&n, term);
<------><------>if (ret)
<------><------><------>return ret;
<------><------>list_add_tail(&n->list, *new);
<------>}
<------>return 0;
}
 
void parse_events_terms__purge(struct list_head *terms)
{
<------>struct parse_events_term *term, *h;
 
<------>list_for_each_entry_safe(term, h, terms, list) {
<------><------>list_del_init(&term->list);
<------><------>parse_events_term__delete(term);
<------>}
}
 
void parse_events_terms__delete(struct list_head *terms)
{
<------>if (!terms)
<------><------>return;
<------>parse_events_terms__purge(terms);
<------>free(terms);
}
 
void parse_events__clear_array(struct parse_events_array *a)
{
<------>zfree(&a->ranges);
}
 
void parse_events_evlist_error(struct parse_events_state *parse_state,
<------><------><------>       int idx, const char *str)
{
<------>if (!parse_state->error)
<------><------>return;
 
<------>parse_events__handle_error(parse_state->error, idx, strdup(str), NULL);
}
 
static void config_terms_list(char *buf, size_t buf_sz)
{
<------>int i;
<------>bool first = true;
 
<------>buf[0] = '\0';
<------>for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) {
<------><------>const char *name = config_term_names[i];
 
<------><------>if (!config_term_avail(i, NULL))
<------><------><------>continue;
<------><------>if (!name)
<------><------><------>continue;
<------><------>if (name[0] == '<')
<------><------><------>continue;
 
<------><------>if (strlen(buf) + strlen(name) + 2 >= buf_sz)
<------><------><------>return;
 
<------><------>if (!first)
<------><------><------>strcat(buf, ",");
<------><------>else
<------><------><------>first = false;
<------><------>strcat(buf, name);
<------>}
}
 
/*
 * Return string contains valid config terms of an event.
 * @additional_terms: For terms such as PMU sysfs terms.
 */
char *parse_events_formats_error_string(char *additional_terms)
{
<------>char *str;
<------>/* "no-overwrite" is the longest name */
<------>char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
<------><------><------>  (sizeof("no-overwrite") - 1)];
 
<------>config_terms_list(static_terms, sizeof(static_terms));
<------>/* valid terms */
<------>if (additional_terms) {
<------><------>if (asprintf(&str, "valid terms: %s,%s",
<------><------><------>     additional_terms, static_terms) < 0)
<------><------><------>goto fail;
<------>} else {
<------><------>if (asprintf(&str, "valid terms: %s", static_terms) < 0)
<------><------><------>goto fail;
<------>}
<------>return str;
 
fail:
<------>return NULL;
}