On Sat, Jul 14, 2007 at 06:03:33PM +0200, Tobias Schlüter wrote: > H.J. Lu wrote: > >It looks like gcc assumes a functon marked with DECL_IS_MALLOC won't > >return an address which can alias something else. But it isn't true > >for realloc. Now, the qestions are > > > >1. Can gcc make such an assumption? > >2. Can realloc be marked as DECL_IS_MALLOC. > > > >BTW, glibc also marks realloc with __attribute_malloc__. > > There was an absurdely long thread on this topic starting at > <http://gcc.gnu.org/ml/gcc/2004-01/msg00005.html>. I didn't dig through > it to find the answer.
Now, we have a real testcase to show the problem. How do we solve it? H.J.
