[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH][Qemu-devel] Single stepping for PPC broken!
From: |
Marius Groeger |
Subject: |
Re: [PATCH][Qemu-devel] Single stepping for PPC broken! |
Date: |
Wed, 13 Feb 2008 09:46:44 +0100 (CET) |
On Mon, 11 Feb 2008, Rob Landley wrote:
> On Thursday 10 January 2008 07:57:50 Marius Groeger wrote:
> > The attached patch fixes the problem, but I have to admit I can't tell
> > for sure if this doesn't break other things (such as qemu's built-in
> > GDB server). Could some QEMU ppc expert please comment on this?
>
> Looks fine to me, but I don't see it in the git mirror I follow...
>
> Did anybody notice this patch?
Apparently not :-)
I just checked if it still applies, and it doesn't. Checking why I ran
into the following strangeness in target-ppc/translate.c:gen_goto_tb()
which appeared during the TCG migration:
..
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
!ctx->singlestep_enabled) {
..
} else {
gen_set_T1(dest);
#if defined(TARGET_PPC64)
if (ctx->sf_mode)
gen_op_b_T1_64();
else
#endif
gen_op_b_T1();
if (ctx->singlestep_enabled)
gen_op_debug()
}
It seems to me that the second if (ctx->singlestep_enabled) is
rendundant.
I'll see if I can find some time to see if the patch is still needed
and if so, update it to the current HEAD.
Thanks
Marius
--
Marius Groeger
SYSGO AG Embedded and Real-Time Software
Voice: +49 6136 9948 0 FAX: +49 6136 9948 10
www.sysgo.com | www.elinos.com | www.osek.de | www.pikeos.com