Thread: [Valgrind-users] __builtin_new and its buddies

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Gentlemen,
I am still having issues with __builtin_new not being intercepted by
Valgrind.&nbsp; Jeremy Fitzhardinge gave me some suggestions, but it did
not solve the issue. Here is the problem: when I am compling certain classes,
the compiler generates references to __builtin_new (vec_new, delete, vec_delete)
in the object file.&nbsp; When this object file is linked into executable,
the compiler resolves the __builtin* references from libgcc.a, where they
are defined as "W" symbols.
As a result,&nbsp; Valgrind does NOT intercept those __builtin* functions,
and only catches malloc() and free() calls when these classes are used.
As you can imagine, a swarm of musmatched free/delete/delete[] is evoked,
plus the validity of memory checks probably becomes questionable.
Now, this is happening when I am using gcc 2.95.3 ( and g++ as linker).
If&nbsp; I compile with gcc 3.2, references to __builtin* are not generated,
instead it generated references to "operator new" and its buddies - that
works well with Valgrind.&nbsp; Unfortunately, I cannot compile my system
with 3.2 - I am stuck with 2.95.3 for the time being. There is a lot of
code in the system that does not compile with 3.2 and fixing the code is
not a choice&nbsp; (it's millions of lines).
I am attaching a cheesy test case - definition of&nbsp; 3 classes plus
two object files generated by 2.95.3 and 3.2 compilers.&nbsp; Please, if
anyone can give me a hint how this problem may be circumvented, that would
be awesome and merit at least a six-pack! :)
Looking forward to suggestions!
 Regards,
 Alex Ivershen
<pre>--&nbsp;
Alex G. Ivershen&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Inet Technologies, Inc.
Network Products Dept.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1500 N. Greenville Ave.
Inet Technologies Inc.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Richardson, TX 75081
Phone: +1-469-330-4295&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; USA</pre>
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Thread: [Valgrind-users] __builtin_new and its buddies

valgrind-users