[patch] fix the bug of conflict of -c and -x option

[David Smith]

Lai Jiangshan wrote:
> hi, all
> 
> using the following command to test target(), we can find that
> the return value of target() is the pid of "readlink /proc/self",
> but not 1234 as expected. Obviously, the -c and -x options are
> conflict! pid specified by -x option will be overwritten if the -c
> option is also specified.
> 
> $ stap -c "readlink /proc/self" -x 1234 -e 'probe 
> begin{printf("target()=%d\n",target())}'
> 19681
> target()=19681
> 
> the man page of stap says nothing about the conflict of -c and -x.
> 
> I think it will be better if the following patch can be applied.
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
> 

... patch deleted ...

Lai,

Thanks for the patch - I've committed it.  I'll also be adding two 
testcases to see this code gets exercised.

-- 
David Smith
dsmith@redhat.com
Red Hat
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