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Re: (libgcc) what does _Unwind_Resume do ?
Sunzir Deepur writes:
> Hi Andrew,
>
> On 10/20/07, Andrew Haley <aph-gcc@littlepinkcloud.com> wrote:
> > Sunzir Deepur writes:
> > > I have noticed that glibc has extensive use of the _Unwind_Resume procedure
> > > Can anyone please explain me what is it ? why is it needed for C programs
> >
> > It's needed for pthread_cancel.
> > It resumes unwinding after a cleanup.
> >
> > http://www.codesourcery.com/cxx-abi/abi-eh.html
> > http://www.mit.edu/~sipb-iap/2004/inside-c/day3/exceptions.html
>
> Is the winding relevant only to C++ exception catching ?
> If so, why would it be needed when compiling simple C apps ?
I don't know that it is.
> Thank you (and sorry for posting initialy at gcc@gcc.gnu.org),
I'm sure you can't have had time to read those references I sent you.
Have a look at what pthread_cancel does. Have a look at what
pthread_cleanup_push does.
Andrew.