Re: lib/39465: threads stack is not aligned properly for gcc on i386

[Anthony Mallet <anthony.mallet%useless-ficus.net@localhost>]

On Wednesday, at 21:00, Anthony Mallet wrote:
|  Does it make more sense like this? - apart from the fact that the ABI 
requires
|  4 bytes alignment only, of course, but that's another issue -

Also, this comment in the OpenBSD commit for the same problem is interesting:

/*
 * Locate the initial frame at the top of the stack.  For the
 * stack to end up properly (16-byte) aligned, we need to
 * align the frame at an odd 8-byte boundary.
 */
f = (struct frame *)((((int)base + len - sizeof *f) & ~15) - 8);

http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libpthread/arch/i386/uthread_machdep.c.diff?r1=1.5;r2=1.6;f=h