Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 21 May 2012 22:53:06 -0400
From: Rich Felker <>
Subject: Re: A little more progress today with clang/LLVM

On Mon, May 21, 2012 at 09:35:59PM -0500, Richard Pennington wrote:
> I'll send you the list. The only one that looked sort of bad to me was the out 
> of bounds array reference. It was on the x86_64 in the pthread_barrier_t 
> access. clang complained about referencing __p[4], which is out of bounds. 
> That code is a little cryptic to me right now, since I'm a newbi. ;-)

Thanks! Indeed, that's broken. I must not have noticed since I'm on
x86 (32-bit). The situation with the definition of these types is
unfortunate and I might eventually change it; basically, to avoid
leaking implementation details in the public headers, and to avoid
having to change the bits headers for all archs if I change the way
these primitives work, the public headers just have a union with ints
and pointers matching the ABI's size for the type, and pthread_impl.h
has macros that map fields into these slots in such a way that the
mapping works on both 32- and 64-bit systems.

Fixing now...


Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.