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Diffstat (limited to 'tools/perf/util/parse-events.c')
-rw-r--r--tools/perf/util/parse-events.c142
1 files changed, 124 insertions, 18 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index c6fd0479f4cd..6c913c3914fb 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -20,6 +20,7 @@
#include "pmu.h"
#include "thread_map.h"
#include "cpumap.h"
+#include "probe-file.h"
#include "asm/bug.h"
#define MAX_NAME_LEN 100
@@ -436,7 +437,7 @@ int parse_events_add_cache(struct list_head *list, int *idx,
}
static void tracepoint_error(struct parse_events_error *e, int err,
- char *sys, char *name)
+ const char *sys, const char *name)
{
char help[BUFSIZ];
@@ -466,7 +467,7 @@ static void tracepoint_error(struct parse_events_error *e, int err,
}
static int add_tracepoint(struct list_head *list, int *idx,
- char *sys_name, char *evt_name,
+ const char *sys_name, const char *evt_name,
struct parse_events_error *err,
struct list_head *head_config)
{
@@ -491,7 +492,7 @@ static int add_tracepoint(struct list_head *list, int *idx,
}
static int add_tracepoint_multi_event(struct list_head *list, int *idx,
- char *sys_name, char *evt_name,
+ const char *sys_name, const char *evt_name,
struct parse_events_error *err,
struct list_head *head_config)
{
@@ -533,7 +534,7 @@ static int add_tracepoint_multi_event(struct list_head *list, int *idx,
}
static int add_tracepoint_event(struct list_head *list, int *idx,
- char *sys_name, char *evt_name,
+ const char *sys_name, const char *evt_name,
struct parse_events_error *err,
struct list_head *head_config)
{
@@ -545,7 +546,7 @@ static int add_tracepoint_event(struct list_head *list, int *idx,
}
static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
- char *sys_name, char *evt_name,
+ const char *sys_name, const char *evt_name,
struct parse_events_error *err,
struct list_head *head_config)
{
@@ -584,7 +585,7 @@ struct __add_bpf_event_param {
struct list_head *head_config;
};
-static int add_bpf_event(struct probe_trace_event *tev, int fd,
+static int add_bpf_event(const char *group, const char *event, int fd,
void *_param)
{
LIST_HEAD(new_evsels);
@@ -595,27 +596,27 @@ static int add_bpf_event(struct probe_trace_event *tev, int fd,
int err;
pr_debug("add bpf event %s:%s and attach bpf program %d\n",
- tev->group, tev->event, fd);
+ group, event, fd);
- err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, tev->group,
- tev->event, evlist->error,
+ err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, group,
+ event, evlist->error,
param->head_config);
if (err) {
struct perf_evsel *evsel, *tmp;
pr_debug("Failed to add BPF event %s:%s\n",
- tev->group, tev->event);
+ group, event);
list_for_each_entry_safe(evsel, tmp, &new_evsels, node) {
list_del(&evsel->node);
perf_evsel__delete(evsel);
}
return err;
}
- pr_debug("adding %s:%s\n", tev->group, tev->event);
+ pr_debug("adding %s:%s\n", group, event);
list_for_each_entry(pos, &new_evsels, node) {
pr_debug("adding %s:%s to %p\n",
- tev->group, tev->event, pos);
+ group, event, pos);
pos->bpf_fd = fd;
}
list_splice(&new_evsels, list);
@@ -661,7 +662,7 @@ int parse_events_load_bpf_obj(struct parse_events_evlist *data,
goto errout;
}
- err = bpf__foreach_tev(obj, add_bpf_event, &param);
+ err = bpf__foreach_event(obj, add_bpf_event, &param);
if (err) {
snprintf(errbuf, sizeof(errbuf),
"Attach events in BPF object failed");
@@ -900,6 +901,9 @@ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
[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_OVERWRITE] = "overwrite",
+ [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
};
static bool config_term_shrinked;
@@ -992,9 +996,18 @@ do { \
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;
default:
err->str = strdup("unknown term");
err->idx = term->err_term;
@@ -1040,6 +1053,9 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
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_OVERWRITE:
+ case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
return config_term_common(attr, term, err);
default:
if (err) {
@@ -1109,6 +1125,15 @@ do { \
case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1);
break;
+ case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
+ ADD_CONFIG_TERM(MAX_STACK, max_stack, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
+ ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 1 : 0);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
+ ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 0 : 1);
+ break;
default:
break;
}
@@ -1118,7 +1143,7 @@ do { \
}
int parse_events_add_tracepoint(struct list_head *list, int *idx,
- char *sys, char *event,
+ const char *sys, const char *event,
struct parse_events_error *err,
struct list_head *head_config)
{
@@ -1388,7 +1413,7 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add)
if (!add && get_event_modifier(&mod, str, NULL))
return -EINVAL;
- __evlist__for_each(list, evsel) {
+ __evlist__for_each_entry(list, evsel) {
if (add && get_event_modifier(&mod, str, evsel))
return -EINVAL;
@@ -1414,7 +1439,7 @@ int parse_events_name(struct list_head *list, char *name)
{
struct perf_evsel *evsel;
- __evlist__for_each(list, evsel) {
+ __evlist__for_each_entry(list, evsel) {
if (!evsel->name)
evsel->name = strdup(name);
}
@@ -1976,6 +2001,85 @@ static bool is_event_supported(u8 type, unsigned config)
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);
+ 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);
+ }
+ } 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;
@@ -2158,6 +2262,8 @@ void print_events(const char *event_glob, bool name_only)
}
print_tracepoint_events(NULL, NULL, name_only);
+
+ print_sdt_events(NULL, NULL, name_only);
}
int parse_events__is_hardcoded_term(struct parse_events_term *term)
@@ -2322,9 +2428,9 @@ static void config_terms_list(char *buf, size_t buf_sz)
char *parse_events_formats_error_string(char *additional_terms)
{
char *str;
- /* "branch_type" is the longest name */
+ /* "no-overwrite" is the longest name */
char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
- (sizeof("branch_type") - 1)];
+ (sizeof("no-overwrite") - 1)];
config_terms_list(static_terms, sizeof(static_terms));
/* valid terms */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.