Hi,
We've interposed malloc/calloc/realloc/memalign/valloc in our
application. While all of our application calls our own implementation
of these functions, there seems to be some issue with the dl.so shared
library (Windriver, ppc, linux 32 bit). The dl.so library defines a
function called - _dl_tls_setup and another one - _dl_deallocate_tls.
When our application that linked in -ldl and -lpthread, was shutting
down, we saw a crash with the backtrace pointing to
_dl_deallocate_tls. Upon further investigation we found that
_dl_tls_deallocate was calling 'free' which was our own implementation
(Not libc's) However, the chunk was got using malloc/calloc from
libc!!!!!. I put a breakpoint at _dl_tls_setup and found that it was
getting memory from the libc calloc.
I'm not sure how the dl library could have got calloc from libc and
free from our application. Please help!!!
thanks,
-Anil
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