[Bug malloc/14981] New: mtrace realloc

[joost.vandevondele at mat dot ethz.ch]

http://sourceware.org/bugzilla/show_bug.cgi?id=14981

             Bug #: 14981
           Summary: mtrace realloc
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: malloc
        AssignedTo: unassigned@sourceware.org
        ReportedBy: joost.vandevondele@mat.ethz.ch
    Classification: Unclassified


The following program causes mtrace.pl to report memory leaks.

> cat test.c
void main()
{ 
  int* i;
  mtrace();
  i=malloc(sizeof(int));
  i=realloc(i,0);
  muntrace();
} 

mtrace ./t.dat 

Memory not freed:
-----------------
           Address     Size     Caller
0x0000000000a96460      0x4  at 0x400678

It looks like mtrace.pl is not considering realloc(x,0) equivalent to a free.

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