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* Help required in relation with static probe points, STAP_MARK
@ 2009-01-15 17:23 beginner966
  2009-01-15 18:56 ` David Smith
  0 siblings, 1 reply; 6+ messages in thread
From: beginner966 @ 2009-01-15 17:23 UTC (permalink / raw)
  To: systemtap


Hi,

I am a beginner and was trying to use STAP_MARK to create static probe
points in kernel/sched.c. When I patched the sched.c file and did a make,
following errors were obtained:

kernel/sched.c: In function âadd_preempt_countâ:
kernel/sched.c:4425: warning: unused variable âparent_eipâ
kernel/sched.c:4424: warning: unused variable âeipâ
kernel/sched.c: In function â__migrate_taskâ:
kernel/sched.c:6295: error: implicit declaration of function âSTAP_MARKâ
kernel/sched.c:6295: error: âcpu_offlineâ undeclared (first use in this
function)
kernel/sched.c:6295: error: (Each undeclared identifier is reported only
once
kernel/sched.c:6295: error: for each function it appears in.)
kernel/sched.c:6311: error: âalready_movedâ undeclared (first use in this
function)
kernel/sched.c:6317: error: âaffinity_changedâ undeclared (first use in this
function)
kernel/sched.c:6326: error: âmigration_successâ undeclared (first use in
this function)


Which header file is to be included for STAP_MARK to work ?
Please reply. Thanks !
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Help required in relation with static probe points, STAP_MARK
  2009-01-15 17:23 Help required in relation with static probe points, STAP_MARK beginner966
@ 2009-01-15 18:56 ` David Smith
  2009-01-16  9:44   ` beginner966
  2009-01-16  9:59   ` beginner966
  0 siblings, 2 replies; 6+ messages in thread
From: David Smith @ 2009-01-15 18:56 UTC (permalink / raw)
  To: beginner966; +Cc: systemtap

beginner966 wrote:
> Hi,
> 
> I am a beginner and was trying to use STAP_MARK to create static probe
> points in kernel/sched.c.

STAP_MARK was an early attempt at static probe points.  In current
kernels, you can use the built-in marker facility.  See
<http://sourceware.org/systemtap/wiki/UsingMarkers> for details, which I
believe is reasonably up-to-date.

-- 
David Smith
dsmith@redhat.com
Red Hat
http://www.redhat.com
256.217.0141 (direct)
256.837.0057 (fax)

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Help required in relation with static probe points, STAP_MARK
  2009-01-15 18:56 ` David Smith
@ 2009-01-16  9:44   ` beginner966
  2009-01-16  9:59   ` beginner966
  1 sibling, 0 replies; 6+ messages in thread
From: beginner966 @ 2009-01-16  9:44 UTC (permalink / raw)
  To: systemtap


Thank you David.

David Smith-19 wrote:
> 
> beginner966 wrote:
>> Hi,
>> 
>> I am a beginner and was trying to use STAP_MARK to create static probe
>> points in kernel/sched.c.
> 
> STAP_MARK was an early attempt at static probe points.  In current
> kernels, you can use the built-in marker facility.  See
> <http://sourceware.org/systemtap/wiki/UsingMarkers> for details, which I
> believe is reasonably up-to-date.
> 
> -- 
> David Smith
> dsmith@redhat.com
> Red Hat
> http://www.redhat.com
> 256.217.0141 (direct)
> 256.837.0057 (fax)
> 
> 

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Help required in relation with static probe points, STAP_MARK
  2009-01-15 18:56 ` David Smith
  2009-01-16  9:44   ` beginner966
@ 2009-01-16  9:59   ` beginner966
  2009-01-17 15:23     ` Frank Ch. Eigler
  1 sibling, 1 reply; 6+ messages in thread
From: beginner966 @ 2009-01-16  9:59 UTC (permalink / raw)
  To: systemtap


I'm using the directions in the given link, by David. However when I tried to
recompile the kernel, I got the following error message:

 VDSO    arch/x86/vdso/vdso32-sysenter.so.dbg
  CC      kernel/sched.o
In file included from kernel/sched.c:31:
include/linux/marker.h:33: error: expected declaration specifiers or â...â
before âva_listâ
  VDSOSYM arch/x86/vdso/vdso32-int80-syms.lds
  VDSOSYM arch/x86/vdso/vdso32-sysenter-syms.lds

Its pointing the error to the linux/marker.h file. Please suggest the
solution. Thanks.
Kernel version : 2.6.26.5
Patched with : patch-2.6.26.5-rt9



David Smith-19 wrote:
> 
> beginner966 wrote:
>> Hi,
>> 
>> I am a beginner and was trying to use STAP_MARK to create static probe
>> points in kernel/sched.c.
> 
> STAP_MARK was an early attempt at static probe points.  In current
> kernels, you can use the built-in marker facility.  See
> <http://sourceware.org/systemtap/wiki/UsingMarkers> for details, which I
> believe is reasonably up-to-date.
> 
> -- 
> David Smith
> dsmith@redhat.com
> Red Hat
> http://www.redhat.com
> 256.217.0141 (direct)
> 256.837.0057 (fax)
> 
> 

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Help required in relation with static probe points, STAP_MARK
  2009-01-16  9:59   ` beginner966
@ 2009-01-17 15:23     ` Frank Ch. Eigler
  2009-01-17 16:35       ` beginner966
  0 siblings, 1 reply; 6+ messages in thread
From: Frank Ch. Eigler @ 2009-01-17 15:23 UTC (permalink / raw)
  To: beginner966; +Cc: systemtap

beginner966 <nitin966@gmail.com> writes:

> I'm using the directions in the given link, by David. However when I
> tried = to recompile the kernel, I got the following error message:
>  VDSO    arch/x86/vdso/vdso32-sysenter.so.dbg
>   CC      kernel/sched.o
> In file included from kernel/sched.c:31:
> include/linux/marker.h:33: error: expected declaration specifiers or ... before 'va_list'
> [...]
> Kernel version : 2.6.26.5
> Patched with : patch-2.6.26.5-rt9

I don't understand this error.  Maybe it's a compiler version issue.
Different versions of marker.h use "..." in that declaration.

- FChE

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Help required in relation with static probe points, STAP_MARK
  2009-01-17 15:23     ` Frank Ch. Eigler
@ 2009-01-17 16:35       ` beginner966
  0 siblings, 0 replies; 6+ messages in thread
From: beginner966 @ 2009-01-17 16:35 UTC (permalink / raw)
  To: systemtap


The error has been fixed. Thanks for the replies and valuable suggestions.


Frank Ch. Eigler wrote:
> 
> beginner966 <nitin966@gmail.com> writes:
> 
>> I'm using the directions in the given link, by David. However when I
>> tried = to recompile the kernel, I got the following error message:
>>  VDSO    arch/x86/vdso/vdso32-sysenter.so.dbg
>>   CC      kernel/sched.o
>> In file included from kernel/sched.c:31:
>> include/linux/marker.h:33: error: expected declaration specifiers or ...
>> before 'va_list'
>> [...]
>> Kernel version : 2.6.26.5
>> Patched with : patch-2.6.26.5-rt9
> 
> I don't understand this error.  Maybe it's a compiler version issue.
> Different versions of marker.h use "..." in that declaration.
> 
> - FChE
> 
> 

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end of thread, other threads:[~2009-01-17 15:23 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-01-15 17:23 Help required in relation with static probe points, STAP_MARK beginner966
2009-01-15 18:56 ` David Smith
2009-01-16  9:44   ` beginner966
2009-01-16  9:59   ` beginner966
2009-01-17 15:23     ` Frank Ch. Eigler
2009-01-17 16:35       ` beginner966

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