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Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state
From: |
Andreas Färber |
Subject: |
Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state |
Date: |
Wed, 16 May 2012 05:50:42 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120421 Thunderbird/12.0 |
Am 15.05.2012 18:08, schrieb Fabien Chouteau:
> On 05/15/2012 03:31 PM, Andreas Färber wrote:
>> Am 15.05.2012 11:39, schrieb Fabien Chouteau:
>>> Do not call cpu_dump_state if logfile is NULL.
>>
>> And where is log_cpu_state() being called from? Its caller is passing
>> NULL already then.
>>
>
> No, logfile is a global variable. log_cpu_state() takes only CPUState
> and flags parameters.
Ah, I see now that f is a different f here, logfile becomes
log_cpu_state()'s f. Unfortunate naming.
Your fix looks OK then but I would recommend turning it into a static
inline function to avoid the line breaks.
Andreas
>>> Signed-off-by: Fabien Chouteau <address@hidden>
>>> ---
>>> qemu-log.h | 7 ++++++-
>>> 1 file changed, 6 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/qemu-log.h b/qemu-log.h
>>> index fccfb110..2cd5ffa 100644
>>> --- a/qemu-log.h
>>> +++ b/qemu-log.h
>>> @@ -51,7 +51,12 @@ extern int loglevel;
>>> /* Special cases: */
>>>
>>> /* cpu_dump_state() logging functions: */
>>> -#define log_cpu_state(env, f) cpu_dump_state((env), logfile, fprintf, (f));
>>> +#define log_cpu_state(env, f) \
>>> +do { \
>>> + if (logfile != NULL) { \
>>> + cpu_dump_state((env), logfile, fprintf, (f)); \
>>> + } \
>>> + } while (0)
>>> #define log_cpu_state_mask(b, env, f) do { \
>>> if (loglevel & (b)) log_cpu_state((env), (f)); \
>>> } while (0)
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
- [Qemu-devel] [PATCH] PowerPC: Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/14
- Re: [Qemu-devel] [PATCH] PowerPC: Avoid segfault in cpu_dump_state, Peter Maydell, 2012/05/14
- [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/15
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Andreas Färber, 2012/05/15
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/15
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Peter Maydell, 2012/05/15
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/15
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Peter Maydell, 2012/05/15
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state,
Andreas Färber <=
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/16
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/16
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/23
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Alexander Graf, 2012/05/30
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Fabien Chouteau, 2012/05/30
- Re: [Qemu-devel] [PATCH] Avoid segfault in cpu_dump_state, Andreas Färber, 2012/05/30