Fw: Re: problem when running the following script

Frank Ch. Eigler fche@redhat.com
Sun May 10 15:06:00 GMT 2009


Hi -

On Sun, May 10, 2009 at 12:56:44PM +0800, zshan wrote:
> [...]
> if I want to probe this function:  tun_chr_aio_read   , which located in the path :  kernel\driver\net\tun.c
> how can I probe that?
> 
> I did that throught the following script:
> stap -l 'kernel.function("*@/drivers/net/tun.c")'

The problem is the "kernel." part.  tun is often compiled into
a separate module, so one would use something like:

  stap -l 'module("tun").function("*@drivers/net/*")'


- FChE



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