Re: [PATCH v2 0/3] Perf support to SDT markers

[Namhyung Kim <namhyung@kernel.org>]

Hi Frank,

On Mon, 07 Oct 2013 11:47:09 -0400, Frank Ch. Eigler wrote:
> Hemant Kumar <hkshaw@linux.vnet.ibm.com> writes:
>
>> [...]
>> A simple example to show this follows.
>> - Create a file with .d extension and mention the probe names in it with
>> provider name and marker name.
>> [...]
>> - Now create the probes.h and probes.o file :
>> $ dtrace -C -h -s probes.d -o probes.h
>> $ dtrace -C -G -s probes.d -o probes.o
>> [...]
>
> It may be worthwhile to document an even-simpler case:
>
> - no .d file
> - no invocation of the dtrace python script
> - no generated .h or .o file
> - in the C file, just add:
>
>   #include <sys/sdt.h>
>
>   void main () {
>        /* ... */
>        STAP_PROBE(provider_name,probe_name);
>        /* ... */
>   }
>
> - gcc file.c
> - stap -l 'process("./a.out").mark("*")' to list

Yes, looks much simpler and better.

Hemant, would you add it to the doc too?

Thanks,
Namhyung