[CONF] Apache Qpid: ValgrindBadSuppressions (page edited)

Wed, 28 Mar 2007 12:06:23 -0800

Page Edited : qpid : ValgrindBadSuppressions

ValgrindBadSuppressions has been edited by Alan Conway (Mar 28, 2007).

(View changes)

Content:

(Observed with valgrind 3.2.1)
Valgrind sometimes produces supressions that don't work, like this:

{
  <insert a suppression name here>
  Memcheck:Free
  fun:_vgrZU_libcZdsoZa_free
  fun:main
}

The identifying characteristic is that they begin with fun:_vg<something>



http://article.gmane.org/gmane.comp.debugging.valgrind/5939 explains what these symbols are.



The workaround is to replace fun:vg*_lib*<something> with fun:<something>, where something

should be a valid C or C++ mangled symbol.



The following test program demonstrates the problem




#include <stdlib.h>
int main(int argc,char**argv) {
   char*p = malloc(10);
   free(p);
   free(p);
}

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