Re: port-sh3/49597: swapcontext(3) stack pointer problem on NetBSD/sh3

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

The following reply was made to PR port-sh3/49597; it has been noted by GNATS.

From: Valery Ushakov <uwe%stderr.spb.ru@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-sh3/49597: swapcontext(3) stack pointer problem on NetBSD/sh3
Date: Thu, 22 Jan 2015 17:39:58 +0300

 On Thu, Jan 22, 2015 at 14:05:00 +0000, oshima-ya%yagoto-urayama.jp@localhost wrote:
 
 > In src/lib/libc/arch/sh3/gen/swapcontext.S,
 > Though SP is incremented 4 or 3 times in swapcontext(3)
 > till getcontext(2), it does not adjust stack pointer
 > in ocup->uc_mcontext.__gregs[_REG_SP] after that.
 
 Hmm, not directly related, but while looking at this... Don't we also
 miss
 
     mov #0, r0
 
 in getcontext (src/lib/libc/arch/sh3/sys/getcontext.S)?
 
 -uwe