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From: Jason Wessel <jason.wessel@windriver.com>
To: David Miller <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org,
	kgdb-bugreport@lists.sourceforge.net, kdb@oss.sgi.com,
	mingo@elte.hu
Subject: Re: [PATCH 07/37] kgdb,sparc: Add in kgdb_arch_set_pc for sparc
Date: Wed, 23 Dec 2009 17:04:11 -0600	[thread overview]
Message-ID: <4B32A1EB.2020805@windriver.com> (raw)
In-Reply-To: <20091223.134837.189694575.davem@davemloft.net>


David Miller wrote:
> From: Jason Wessel <jason.wessel@windriver.com>
> Date: Wed, 23 Dec 2009 15:19:20 -0600
>
>   
>> +void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
>> +{
>> +       regs->pc = regs->npc;
>> +       regs->npc = ip;
>> +}
>> +
>>     
>
> Is this right?
>
> It should probably be something like:
>
>   
Just because it didn't crash doesn't mean it is right :-)

I'll go with your implementation which according to the instruction
manual is the right way.  This particular function doesn't really get
exercised with out the arch specific hardware or software single
stepping code, which is not a part of this series at the moment.

This fix and the other fix you asked about are both in kgdb-next which
feeds into linux-next, if you are ultimately ok with the changes, I'll
add an ack from you as well.

Hopefully there is enough time to get the kdb shape for the next kernel
merge window.

http://git.kernel.org/?p=linux/kernel/git/jwessel/linux-2.6-kgdb.git;a=commitdiff;h=ed088ec6e6e7e245c060d068d333648eff06dd4b
and
http://git.kernel.org/?p=linux/kernel/git/jwessel/linux-2.6-kgdb.git;a=commitdiff;h=c5dc61eb8d1c347ff3eadc1bccae07437d85779a

Thanks,
Jason.


  reply	other threads:[~2009-12-23 23:04 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-23 21:19 [PATCH 0/37] kgdb, kdb and atomic kernel modesetting series Jason Wessel
2009-12-23 21:19 ` [PATCH 01/37] softlockup: add sched_clock_tick() to avoid kernel warning on kgdb resume Jason Wessel
2009-12-23 21:19   ` [PATCH 02/37] x86,hw_breakpoint,kgdb: kgdb to use hw_breakpoint API Jason Wessel
2009-12-23 21:19     ` [PATCH 03/37] Move kernel/kgdb.c to kernel/debug/debug_core.c Jason Wessel
2009-12-23 21:19       ` [PATCH 04/37] Separate the gdbstub from the debug core Jason Wessel
2009-12-23 21:19         ` [PATCH 05/37] kdb: core for kgdb back end Jason Wessel
2009-12-23 21:19           ` [PATCH 06/37] kgdb: eliminate kgdb_wait(), all cpus enter the same way Jason Wessel
2009-12-23 21:19             ` [PATCH 07/37] kgdb,sparc: Add in kgdb_arch_set_pc for sparc Jason Wessel
2009-12-23 21:19               ` [PATCH 08/37] kgdb,sh: update superh kgdb exception handling Jason Wessel
2009-12-23 21:19                 ` [PATCH 09/37] kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin Jason Wessel
2009-12-23 21:19                   ` [PATCH 10/37] kgdb: Make mem access function weak in kgdb.c and kgdb.h Jason Wessel
2009-12-23 21:19                     ` [PATCH 11/37] kgdb: Fix kernel-doc format error in kgdb.h Jason Wessel
2009-12-23 21:19                       ` [PATCH 12/37] kgdb: core changes to support kdb Jason Wessel
2009-12-23 21:19                         ` [PATCH 13/37] kgdb,8250,pl011: Return immediately from console poll Jason Wessel
2009-12-23 21:19                           ` [PATCH 14/37] sh,sh-sci: Use NO_POLL_CHAR in the SCIF polled console code Jason Wessel
2009-12-23 21:19                             ` [PATCH 15/37] sparc,sunzilog: Add console polling support for sunzilog serial driver Jason Wessel
2009-12-23 21:19                               ` [PATCH 16/37] kgdb: gdb "monitor" -> kdb passthrough Jason Wessel
2009-12-23 21:19                                 ` [PATCH 17/37] kgdboc,keyboard: Keyboard driver for kdb with kgdb Jason Wessel
2009-12-23 21:19                                   ` [PATCH 18/37] kgdb: remove post_primary_code references Jason Wessel
2009-12-23 21:19                                     ` [PATCH 19/37] x86,kgdb: Add low level debug hook Jason Wessel
2009-12-23 21:19                                       ` [PATCH 20/37] arm,kgdb: Add hook to catch an oops with debugger Jason Wessel
2009-12-23 21:19                                         ` [PATCH 21/37] powerpc,kgdb: Introduce low level trap catching Jason Wessel
2009-12-23 21:19                                           ` [PATCH 22/37] mips,kgdb: kdb low level trap catch and stack trace Jason Wessel
2009-12-23 21:19                                             ` [PATCH 23/37] kgdb: Add the ability to schedule a breakpoint via a tasklet Jason Wessel
2009-12-23 21:19                                               ` [PATCH 24/37] kgdboc,kdb: Allow kdb to work on a non open console port Jason Wessel
2009-12-23 21:19                                                 ` [PATCH 25/37] printk,kdb: capture printk() when in kdb shell Jason Wessel
2009-12-23 21:19                                                   ` [PATCH 26/37] keyboard, input: Add hook to input to allow low level event clear Jason Wessel
2009-12-23 21:19                                                     ` [PATCH 27/37] debug_core,kdb: Allow the debug core to process a recursive debug entry Jason Wessel
2009-12-23 21:19                                                       ` [PATCH 28/37] kdb,panic,debug_core: Allow the debug core to receive a panic before smp_send_stop() Jason Wessel
2009-12-23 21:19                                                         ` [PATCH 29/37] MAINTAINERS: update kgdb, kdb, and debug_core info Jason Wessel
2009-12-23 21:19                                                           ` [PATCH 30/37] kgdboc,debug_core: Add call backs to allow kernel mode switching Jason Wessel
2009-12-23 21:19                                                             ` [PATCH 31/37] kgdb: add ops arg to kgdb console active & restore hooks Jason Wessel
2009-12-23 21:19                                                               ` [PATCH 32/37] kms,kdb: Force unblank a console device Jason Wessel
2009-12-23 21:43                                                                 ` [PATCH 33/37] drm: add KGDB/KDB support Add support for KDB entry/exit Jason Wessel
2009-12-23 21:43                                                                   ` [PATCH 34/37] i915: when kgdb is active display compression should be off Jason Wessel
2009-12-23 21:43                                                                     ` [PATCH 35/37] drm_fb_helper: Preserve capability to use atomic kms Jason Wessel
2009-12-23 21:43                                                                       ` [PATCH 36/37] drm,i915 - atomic mutex hacks Jason Wessel
2009-12-23 21:43                                                                         ` [PATCH 37/37] kgdbts,sh: Add in breakpoint pc offset for superh Jason Wessel
2009-12-24  3:58                                                                           ` Paul Mundt
2010-01-04 17:23                                                                   ` [PATCH 33/37] drm: add KGDB/KDB support Add support for KDB entry/exit Jesse Barnes
2009-12-23 21:50                               ` [PATCH 15/37] sparc,sunzilog: Add console polling support for sunzilog serial driver David Miller
2009-12-23 21:54                                 ` Jason Wessel
2009-12-23 22:00                                   ` David Miller
2009-12-24  6:08                             ` [PATCH 14/37] sh,sh-sci: Use NO_POLL_CHAR in the SCIF polled console code Paul Mundt
2009-12-26 21:07                     ` [PATCH 10/37] kgdb: Make mem access function weak in kgdb.c and kgdb.h Mike Frysinger
2009-12-26 21:12                   ` [PATCH 09/37] kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin Mike Frysinger
2009-12-28  9:49                     ` Zhang, Sonic
2009-12-28  9:57                     ` Zhang, Sonic
2009-12-28 10:17                     ` Zhang, Sonic
2009-12-31  2:45                       ` Sonic Zhang
2010-01-06 19:43                         ` [Kgdb-bugreport] " Jason Wessel
2010-01-06 20:08                           ` Mike Frysinger
2010-01-06 20:34                             ` Jason Wessel
2010-01-06 20:39                               ` Mike Frysinger
2010-01-06 22:40                                 ` Jason Wessel
2010-01-07  6:27                                   ` Mike Frysinger
2010-01-07  3:50                           ` Zhang, Sonic
2009-12-24  6:07                 ` [PATCH 08/37] kgdb,sh: update superh kgdb exception handling Paul Mundt
2009-12-23 21:48               ` [PATCH 07/37] kgdb,sparc: Add in kgdb_arch_set_pc for sparc David Miller
2009-12-23 23:04                 ` Jason Wessel [this message]
2009-12-24  4:42                   ` David Miller
2009-12-24  1:28           ` [PATCH 05/37] kdb: core for kgdb back end Andi Kleen
2009-12-28 22:36             ` Jason Wessel
2009-12-28 23:37               ` Andi Kleen
2009-12-24 11:01           ` Peter Zijlstra
2009-12-24 11:16             ` Peter Zijlstra
2009-12-24 15:57               ` Jason Wessel
2009-12-26 21:34                 ` Mike Frysinger
2009-12-24 11:55             ` Jason Wessel
2009-12-24 12:01               ` Peter Zijlstra
2009-12-24 11:04           ` Peter Zijlstra
2009-12-28 16:33             ` Jason Wessel
2009-12-28 16:55               ` Peter Zijlstra
2009-12-28 17:15                 ` Jason Wessel
2009-12-24  0:56 ` [PATCH 0/37] kgdb, kdb and atomic kernel modesetting series Greg KH
2009-12-24  3:55   ` [Kgdb-bugreport] [PATCH 0/37] kgdb,kdb " Jason Wessel

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