1 files changed, 22 insertions, 19 deletions

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index eb25900e2211..8a8ee64e72d1 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -19,7 +19,6 @@
  *
  */
 
-#define _GNU_SOURCE
 #include <sys/utsname.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -33,10 +32,8 @@
 #include <limits.h>
 #include <elf.h>
 
-#undef _GNU_SOURCE
 #include "util.h"
 #include "event.h"
-#include "string.h"
 #include "strlist.h"
 #include "debug.h"
 #include "cache.h"
@@ -275,10 +272,10 @@ static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
 /* Try to find perf_probe_event with debuginfo */
 static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
 					  struct probe_trace_event **tevs,
-					  int max_tevs, const char *module)
+					  int max_tevs, const char *target)
 {
 	bool need_dwarf = perf_probe_event_need_dwarf(pev);
-	struct debuginfo *dinfo = open_debuginfo(module);
+	struct debuginfo *dinfo = open_debuginfo(target);
 	int ntevs, ret = 0;
 
 	if (!dinfo) {
@@ -297,9 +294,9 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
 
 	if (ntevs > 0) {	/* Succeeded to find trace events */
 		pr_debug("find %d probe_trace_events.\n", ntevs);
-		if (module)
+		if (target)
 			ret = add_module_to_probe_trace_events(*tevs, ntevs,
-							       module);
+							       target);
 		return ret < 0 ? ret : ntevs;
 	}
 
@@ -1731,7 +1728,7 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 	}
 
 	ret = 0;
-	printf("Add new event%s\n", (ntevs > 1) ? "s:" : ":");
+	printf("Added new event%s\n", (ntevs > 1) ? "s:" : ":");
 	for (i = 0; i < ntevs; i++) {
 		tev = &tevs[i];
 		if (pev->event)
@@ -1786,7 +1783,7 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 
 	if (ret >= 0) {
 		/* Show how to use the event. */
-		printf("\nYou can now use it on all perf tools, such as:\n\n");
+		printf("\nYou can now use it in all perf tools, such as:\n\n");
 		printf("\tperf record -e %s:%s -aR sleep 1\n\n", tev->group,
 			 tev->event);
 	}
@@ -1798,14 +1795,14 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 
 static int convert_to_probe_trace_events(struct perf_probe_event *pev,
 					  struct probe_trace_event **tevs,
-					  int max_tevs, const char *module)
+					  int max_tevs, const char *target)
 {
 	struct symbol *sym;
 	int ret = 0, i;
 	struct probe_trace_event *tev;
 
 	/* Convert perf_probe_event with debuginfo */
-	ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, module);
+	ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, target);
 	if (ret != 0)
 		return ret;	/* Found in debuginfo or got an error */
 
@@ -1821,8 +1818,8 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
 		goto error;
 	}
 
-	if (module) {
-		tev->point.module = strdup(module);
+	if (target) {
+		tev->point.module = strdup(target);
 		if (tev->point.module == NULL) {
 			ret = -ENOMEM;
 			goto error;
@@ -1869,6 +1866,12 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
 			   tev->point.symbol);
 		ret = -ENOENT;
 		goto error;
+	} else if (tev->point.offset > sym->end - sym->start) {
+		pr_warning("Offset specified is greater than size of %s\n",
+			   tev->point.symbol);
+		ret = -ENOENT;
+		goto error;
+
 	}
 
 	return 1;
@@ -1886,7 +1889,7 @@ struct __event_package {
 };
 
 int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
-			  int max_tevs, const char *module, bool force_add)
+			  int max_tevs, const char *target, bool force_add)
 {
 	int i, j, ret;
 	struct __event_package *pkgs;
@@ -1909,7 +1912,7 @@ int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
 		ret  = convert_to_probe_trace_events(pkgs[i].pev,
 						     &pkgs[i].tevs,
 						     max_tevs,
-						     module);
+						     target);
 		if (ret < 0)
 			goto end;
 		pkgs[i].ntevs = ret;
@@ -1961,7 +1964,7 @@ static int __del_trace_probe_event(int fd, struct str_node *ent)
 		goto error;
 	}
 
-	printf("Remove event: %s\n", ent->s);
+	printf("Removed event: %s\n", ent->s);
 	return 0;
 error:
 	pr_warning("Failed to delete event: %s\n", strerror(-ret));
@@ -2065,7 +2068,7 @@ static int filter_available_functions(struct map *map __unused,
 	return 1;
 }
 
-int show_available_funcs(const char *module, struct strfilter *_filter)
+int show_available_funcs(const char *target, struct strfilter *_filter)
 {
 	struct map *map;
 	int ret;
@@ -2076,9 +2079,9 @@ int show_available_funcs(const char *module, struct strfilter *_filter)
 	if (ret < 0)
 		return ret;
 
-	map = kernel_get_module_map(module);
+	map = kernel_get_module_map(target);
 	if (!map) {
-		pr_err("Failed to find %s map.\n", (module) ? : "kernel");
+		pr_err("Failed to find %s map.\n", (target) ? : "kernel");
 		return -EINVAL;
 	}
 	available_func_filter = _filter;