[Valgrind-users] Re: memcheck failing to hook __builtin_new (Debian Woody)

[Sergey V. <vs...@al...>]

On Mon, 10 May 2004 11:39:18 -0300, Salvador Eduardo Tropea wrote:

> Valgrind version: 2.1.1 and 2.0.0 (can't test CVS because it needs newer
> autotools)
> 
> Brief description: Valgrind hooks __builtin_delete but fails to hook
> __builtin_new resulting in tons of wrong reports about "Mismatched
> free() / delete / delete []".
> 
> System: Debian GNU/Linux Woody, gcc 2.95.4 *important*: libgcc is an
> static library for Woody. GNU libc 2.2.5.
> 
> More info:
> I get things like it:
> ==32691== Mismatched free() / delete / delete []
> 
> ==32691==    at 0x3C01A8DB: __builtin_delete (vg_replace_malloc.c:128)
> 
> ==32691==    by 0x3C0A2319: TStringCollection::~TStringCollection(void)
> (../classes/tstringc.cc:65)
> ==32691==    by 0x80BB591: LoadTVMenuAndStatus(char *)
> (../../tvision/include/tv/object.h:45) ==32691==    by 0x80BB650:
> LoadMenuAndStatus(char *, int) (../setedit/menuload.cc:1059)
> ==32691==  Address 0x3C65C06C is 0 bytes inside a block of size 44
> alloc'd
> ==32691==    at 0x3C01A2F5: malloc
> (vg_replace_malloc.c:105)
> 
> ==32691==    by 0x80FF8F8: __builtin_new (in
> /usr/src/setedit/makes/editor.exe)                                              

This is the problem.  In valgrind-2.1.1 vg_replace_malloc.c:init() hooks
calls to functions only in libc.so.6 and libstdc++*.  Current CVS uses a
different mechanism for this, but it also replaces the functions only in
these specific libraries.

Is your program linked with shared libstdc++ library?  This should happen
automatically if g++ (not gcc) is called for linking.