trace: Generated streq-helper to ignore null terminator

weibang6liu · Jan 17, 2017 · b9aec34 · b9aec34
1 parent fd44cd2
commit b9aec34
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/tools/trace.py b/tools/trace.py
@@ -217,11 +217,11 @@ def _generate_streq_function(self, string):
  fname = "streq_%d" % Probe.streq_index
  Probe.streq_index += 1
  self.streq_functions += """
-static inline bool %s(char const *ignored, unsigned long str) {
+static inline bool %s(char const *ignored, uintptr_t str) {
  char needle[] = %s;
  char haystack[sizeof(needle)];
  bpf_probe_read(&haystack, sizeof(haystack), (void *)str);
- for (int i = 0; i < sizeof(needle); ++i) {
+ for (int i = 0; i < sizeof(needle)-1; ++i) {
  if (needle[i] != haystack[i]) {
  return false;
  }