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Diffstat (limited to 'tools/perf/builtin-probe.c')
-rw-r--r--tools/perf/builtin-probe.c67
1 files changed, 59 insertions, 8 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 6ea9e85bdc00..78948882e3de 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -37,7 +37,7 @@
#include "util/strfilter.h"
#include "util/symbol.h"
#include "util/debug.h"
-#include <lk/debugfs.h>
+#include <api/fs/debugfs.h>
#include "util/parse-options.h"
#include "util/probe-finder.h"
#include "util/probe-event.h"
@@ -59,7 +59,7 @@ static struct {
struct perf_probe_event events[MAX_PROBES];
struct strlist *dellist;
struct line_range line_range;
- const char *target;
+ char *target;
int max_probe_points;
struct strfilter *filter;
} params;
@@ -98,7 +98,10 @@ static int set_target(const char *ptr)
* short module name.
*/
if (!params.target && ptr && *ptr == '/') {
- params.target = ptr;
+ params.target = strdup(ptr);
+ if (!params.target)
+ return -ENOMEM;
+
found = 1;
buf = ptr + (strlen(ptr) - 3);
@@ -116,6 +119,9 @@ static int parse_probe_event_argv(int argc, const char **argv)
char *buf;
found_target = set_target(argv[0]);
+ if (found_target < 0)
+ return found_target;
+
if (found_target && argc == 1)
return 0;
@@ -169,6 +175,7 @@ static int opt_set_target(const struct option *opt, const char *str,
int unset __maybe_unused)
{
int ret = -ENOENT;
+ char *tmp;
if (str && !params.target) {
if (!strcmp(opt->long_name, "exec"))
@@ -180,7 +187,19 @@ static int opt_set_target(const struct option *opt, const char *str,
else
return ret;
- params.target = str;
+ /* Expand given path to absolute path, except for modulename */
+ if (params.uprobes || strchr(str, '/')) {
+ tmp = realpath(str, NULL);
+ if (!tmp) {
+ pr_warning("Failed to get the absolute path of %s: %m\n", str);
+ return ret;
+ }
+ } else {
+ tmp = strdup(str);
+ if (!tmp)
+ return -ENOMEM;
+ }
+ params.target = tmp;
ret = 0;
}
@@ -204,7 +223,6 @@ static int opt_show_lines(const struct option *opt __maybe_unused,
params.show_lines = true;
ret = parse_line_range_desc(str, &params.line_range);
- INIT_LIST_HEAD(&params.line_range.line_list);
return ret;
}
@@ -250,7 +268,28 @@ static int opt_set_filter(const struct option *opt __maybe_unused,
return 0;
}
-int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
+static void init_params(void)
+{
+ line_range__init(&params.line_range);
+}
+
+static void cleanup_params(void)
+{
+ int i;
+
+ for (i = 0; i < params.nevents; i++)
+ clear_perf_probe_event(params.events + i);
+ if (params.dellist)
+ strlist__delete(params.dellist);
+ line_range__clear(&params.line_range);
+ free(params.target);
+ if (params.filter)
+ strfilter__delete(params.filter);
+ memset(&params, 0, sizeof(params));
+}
+
+static int
+__cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
{
const char * const probe_usage[] = {
"perf probe [<options>] 'PROBEDEF' ['PROBEDEF' ...]",
@@ -404,6 +443,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
ret = show_available_funcs(params.target, params.filter,
params.uprobes);
strfilter__delete(params.filter);
+ params.filter = NULL;
if (ret < 0)
pr_err(" Error: Failed to show functions."
" (%d)\n", ret);
@@ -411,7 +451,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
}
#ifdef HAVE_DWARF_SUPPORT
- if (params.show_lines && !params.uprobes) {
+ if (params.show_lines) {
if (params.mod_events) {
pr_err(" Error: Don't use --line with"
" --add/--del.\n");
@@ -443,6 +483,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
params.filter,
params.show_ext_vars);
strfilter__delete(params.filter);
+ params.filter = NULL;
if (ret < 0)
pr_err(" Error: Failed to show vars. (%d)\n", ret);
return ret;
@@ -451,7 +492,6 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
if (params.dellist) {
ret = del_perf_probe_events(params.dellist);
- strlist__delete(params.dellist);
if (ret < 0) {
pr_err(" Error: Failed to delete events. (%d)\n", ret);
return ret;
@@ -470,3 +510,14 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
}
return 0;
}
+
+int cmd_probe(int argc, const char **argv, const char *prefix)
+{
+ int ret;
+
+ init_params();
+ ret = __cmd_probe(argc, argv, prefix);
+ cleanup_params();
+
+ return ret;
+}