How provoke call stack trace

How provoke call stack trace

[Ihar 'Philips' Filipau]

Hello All!

    [ Simple question. Probably FAQ - but I cannot find it. ]

    How can I print call stack trace, just like BUG() does?
    But without asm(".long 0") as BUG() does.

    Is there any function which can be used by module to just 
investigate some given call path?

-- 
Ihar 'Philips' Filipau  / with best regards from Saarbruecken.
--                                                           _ _ _
  "... and for $64000 question, could you get yourself       |_|*|_|
    vaguely familiar with the notion of on-topic posting?"   |_|_|*|
                                 -- Al Viro @ LKML           |*|*|*|

Re: How provoke call stack trace

[Michael Buesch]

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On Monday 03 November 2003 19:38, Ihar 'Philips' Filipau wrote:
> Hello All!
>
>     [ Simple question. Probably FAQ - but I cannot find it. ]
>
>     How can I print call stack trace, just like BUG() does?
>     But without asm(".long 0") as BUG() does.

Maybe
dump_stack();
is what you're searching for?

- -- 
Regards Michael Buesch  [ http://www.tuxsoft.de.vu ]
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Re: How provoke call stack trace

[Roland Dreier]

    Ihar> Is there any function which can be used by module to
    Ihar> just investigate some given call path?

Try dump_stack() (declared in <linux/kernel.h>).

 - Roland

Re: How provoke call stack trace

[Muli Ben-Yehuda]

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On Mon, Nov 03, 2003 at 07:38:39PM +0100, Ihar 'Philips' Filipau wrote:

>    Is there any function which can be used by module to just 
> investigate some given call path?

Assuming 2.6, call dump_stack(). If you want greater flexibility,
investigate show_trace() and friends. 

Hope this helps, 
Muli 
-- 
Muli Ben-Yehuda
http://www.mulix.org | http://mulix.livejournal.com/

"the nucleus of linux oscillates my world" - gccbot@#offtopic


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Re: How provoke call stack trace

[Ihar 'Philips' Filipau]

Muli Ben-Yehuda wrote:
> On Mon, Nov 03, 2003 at 07:38:39PM +0100, Ihar 'Philips' Filipau wrote:
> 
> 
>>   Is there any function which can be used by module to just 
>>investigate some given call path?
> 
> 
> Assuming 2.6, call dump_stack(). If you want greater flexibility,
> investigate show_trace() and friends. 
> 
> Hope this helps, 

   I'm sitting right now on 2.4.22 - so no 2.6 nicities.
   I actually wanted to have something like this on ppc - but ppc has no 
dump_stack() implemented.

   Thanks any way.

   [ Just checked 2.6 - ppc has dump_stack() now. Nice. It looks like 
all archs have implemented it in 2.6. Cool. ]

-- 
Ihar 'Philips' Filipau  / with best regards from Saarbruecken.
--                                                           _ _ _
  "... and for $64000 question, could you get yourself       |_|*|_|
    vaguely familiar with the notion of on-topic posting?"   |_|_|*|
                                 -- Al Viro @ LKML           |*|*|*|

Re: How provoke call stack trace

[Ihar 'Philips' Filipau]

   Thanks to every one!
   Already looking into the source code.

P.S.
   But it looks like ppc (as of 2.4.22) doesn't implement it.
   But still BUG() on ppc prints stack trace... I'm just no specialist 
in cpu exception handling. especially on ppc :-(

Ihar 'Philips' Filipau wrote:
> Hello All!
> 
>    [ Simple question. Probably FAQ - but I cannot find it. ]
> 
>    How can I print call stack trace, just like BUG() does?
>    But without asm(".long 0") as BUG() does.
> 
>    Is there any function which can be used by module to just investigate 
> some given call path?
> 

-- 
Ihar 'Philips' Filipau  / with best regards from Saarbruecken.
--                                                           _ _ _
  "... and for $64000 question, could you get yourself       |_|*|_|
    vaguely familiar with the notion of on-topic posting?"   |_|_|*|
                                 -- Al Viro @ LKML           |*|*|*|