From: Andi Kleen <a...@linux.intel.com>
For debugging and testing it is useful to see the converted
alias string. Add support to perf stat/record and perf list to print
the alias conversion. The text string is saved in the alias structure.
For perf stat/record it is folded into the normal -v. For perf list
-v was taken, so we use --debug.
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
tools/perf/builtin-list.c | 5 ++++-
tools/perf/util/parse-events.y | 3 +++
tools/perf/util/pmu.c | 7 +++++++
tools/perf/util/pmu.h | 1 +
4 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index d0f7a18..c3c4594 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -15,6 +15,7 @@
#include "util/cache.h"
#include "util/pmu.h"
#include "util/parse-options.h"
+#include "util/debug.h"
static bool desc_flag = true;
@@ -29,10 +30,12 @@ int cmd_list(int argc, const char **argv, const char
*prefix __maybe_unused)
"Print extra event descriptions. --no-desc to not
print."),
OPT_BOOLEAN('d', "long-desc", &long_desc_flag,
"Print longer event descriptions."),
+ OPT_INCR(0, "debug", &verbose,
+ "Enable debugging output"),
OPT_END()
};
const char * const list_usage[] = {
- "perf list [--no-desc] [hw|sw|cache|tracepoint|pmu|event_glob]",
+ "perf list [--no-desc] [-v]
[hw|sw|cache|tracepoint|pmu|event_glob]",
NULL
};
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 12745ce..2b90fb8 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -13,6 +13,7 @@
#include <linux/types.h>
#include "util.h"
#include "pmu.h"
+#include "debug.h"
#include "parse-events.h"
#include "parse-events-bison.h"
@@ -246,6 +247,8 @@ PE_KERNEL_PMU_EVENT sep_dc
if (!strcasecmp(alias->name, $1)) {
if (!parse_events_add_pmu(data, list,
pmu->name, head)) {
+ pr_debug("%s -> %s/%s/\n", $1,
+ pmu->name, alias->str);
ok++;
}
}
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index dac87bc..788bd9e 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -247,6 +247,7 @@ static int __perf_pmu__new_alias(struct list_head *list,
char *dir, char *name,
alias->long_desc = long_desc ? strdup(long_desc) :
desc ? strdup(desc) : NULL;
alias->topic = topic ? strdup(topic) : NULL;
+ alias->str = strdup(val);
list_add_tail(&alias->list, list);
@@ -1023,6 +1024,8 @@ struct sevent {
char *name;
char *desc;
char *topic;
+ char *str;
+ char *pmu;
};
static int cmp_sevent(const void *a, const void *b)
@@ -1116,6 +1119,8 @@ void print_pmu_events(const char *event_glob, bool
name_only, bool quiet_flag,
aliases[j].desc = long_desc ? alias->long_desc :
alias->desc;
aliases[j].topic = alias->topic;
+ aliases[j].str = alias->str;
+ aliases[j].pmu = pmu->name;
j++;
}
if (pmu->selectable) {
@@ -1149,6 +1154,8 @@ void print_pmu_events(const char *event_glob, bool
name_only, bool quiet_flag,
printf("%*s", 8, "[");
wordwrap(aliases[j].desc, 8, columns, 0);
printf("]\n");
+ if (verbose)
+ printf("%*s%s/%s/\n", 8, "", aliases[j].pmu,
aliases[j].str);
} else
printf(" %-50s [Kernel PMU event]\n", aliases[j].name);
printed++;
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index b3fe9b8..92d40c3 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -41,6 +41,7 @@ struct perf_pmu_alias {
char *desc;
char *long_desc;
char *topic;
+ char *str;
struct list_head terms; /* HEAD struct parse_events_term -> list */
struct list_head list; /* ELEM */
char unit[UNIT_MAX_LEN+1];
--
2.4.2
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