absolute path of a process

absolute path of a process

[Senhua Tao]

Hi,

    I am new to linux kernel. I like to know is there any way to find
the absolute path of a process.  I mean, how the kernel  knows which
process is currently running? I tried to follow  the current  variable
but got lost. Is the inode struct should I look at?

Thanks.

Sen Tao

Re: absolute path of a process

[Chris Wright]

* Senhua Tao (stao@nbnet.nb.ca) wrote:
> Hi,
> 
>     I am new to linux kernel. I like to know is there any way to find
> the absolute path of a process.  I mean, how the kernel  knows which
> process is currently running? I tried to follow  the current  variable
> but got lost. Is the inode struct should I look at?

look at the code in fs/proc/base.c::proc_exe_link(), that should explain
it.

cheers,
-chris

Re: absolute path of a process

[H. Peter Anvin]

Followup to:  <3C3C8188.E5F7677E@nbnet.nb.ca>
By author:    Senhua Tao <stao@nbnet.nb.ca>
In newsgroup: linux.dev.kernel
>
> Hi,
> 
>     I am new to linux kernel. I like to know is there any way to find
> the absolute path of a process.  I mean, how the kernel  knows which
> process is currently running? I tried to follow  the current  variable
> but got lost. Is the inode struct should I look at?
> 

Examine /proc/self/exe.

	-hpa
-- 
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"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>