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

From: Hemant
Date: Tue Oct 08 2013 - 09:32:40 EST


Hi,

On 10/07/2013 09:17 PM, Frank Ch. Eigler wrote:
Hemant Kumar <hkshaw@xxxxxxxxxxxxxxxxxx> 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


- FChE


Will add this example to the doc too.

--
Thanks
Hemant

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