* [RFC PATCH 3/4] powerpc 2.6.16-rt17: to support CONFIG_MCOUNT
[not found] ` <1155305556.16579.49.camel@c-67-188-28-158.hsd1.ca.comcast.net>
@ 2006-08-21 9:44 ` Tsutomu OWA
0 siblings, 0 replies; 2+ messages in thread
From: Tsutomu OWA @ 2006-08-21 9:44 UTC (permalink / raw)
To: Daniel Walker; +Cc: mingo, tglx, linux-kernel, linuxppc-dev
Sorry about the late response and thanks a lot for your comments.
> On Fri, 11 Aug 2006 07:12:35 -0700, Daniel Walker <dwalker@mvista.com> said:
>> On Fri, 2006-08-11 at 11:02 +0900, Tsutomu OWA wrote:
>> +
>> +#if defined(CONFIG_PREEMPT_TRACE) || defined(CONFIG_LATENCY_TRACE)
>> + print_traces(current);
>> +#endif /* CONFIG_PREEMPT_TRACE || CONFIG_LATENCY_TRACE */
> You shouldn't need the ifdef's here.
Right. I'll remove them.
>> +#ifdef CONFIG_DEBUG_MUTEXES
>> + show_held_locks(current);
>> +#endif /* CONFIG_DEBUG_MUTEXES */
>> +
>> }
>> EXPORT_SYMBOL(dump_stack);
>>
>> diff -rup -x CVS 2.6.16-rt17/arch/powerpc/kernel/prom.c rt-powerpc/arch/powerpc/kernel/prom.c
> Your on an ancient version of the -rt patch. I see that your using CVS
> which explains that. If you want to keep better pace you should consider
> not using CVS.
Hmm... I'll think about that.
>> diff -rup -x CVS 2.6.16-rt17/lib/string.c rt-powerpc/lib/string.c
>> --- 2.6.16-rt17/lib/string.c 2006-03-20 14:53:29.000000000 +0900
>> +++ rt-powerpc/lib/string.c 2006-06-16 13:08:07.000000000 +0900
>> @@ -67,7 +67,7 @@ EXPORT_SYMBOL(strnicmp);
>> * @src: Where to copy the string from
>> */
>> #undef strcpy
>> -char *strcpy(char *dest, const char *src)
>> +char * notrace strcpy(char *dest, const char *src)
>> {
>> char *tmp = dest;
> Why are these notrace ?
Because these are called from prom_init before the relocation.
I was a bit reluctant to calcurate the address of mcount_enabled,
every time _mcount is called and was not sure if it's ok to call
__trace() at this early stage.
thanks.
-- owa
Software Engineering Center, TOSHIBA.
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