[PATCH] Add systemtap markers to slowpow and slowexp

[Andreas Jaeger]

On 09/11/2013 07:31 AM, Siddhesh Poyarekar wrote:
> Hi,
> 
> Attached patch adds systemtap probes to various slow paths in libm so
> that application developers may use systemtap to find out if their
> applications are hitting these slow paths.  We have added probes for
> pow, exp, log, tan, atan and atan2.  More probes for sin, cos,
> etc. coming up.
> 
> OK to commit?
> 
> Siddhesh
> 
> 2013-09-11  Siddhesh Poyarekar  <siddhesh@redhat.com>
> 	    Jeff Law  <law@redhat.com>
> 
> 	* sysdeps/ieee754/dbl-64/e_atan2.c: Include stap-probe.h.
> 	(atan2Mp): Add systemtap probe marker.
> 	* sysdeps/ieee754/dbl-64/e_log.c: include stap-probe.h.
> 	(__ieee754_log): Add systemtap probe marker.
> 	* sysdeps/ieee754/dbl-64/s_atan.c: Include stap-probe.h.
> 	(atanMp): Add systemtap probe marker.
> 	* sysdeps/ieee754/dbl-64/s_tan.c: Include stap-probe.h.
> 	(tanMp): Add systemtap probe marker.
> 	* sysdeps/ieee754/dbl-64/slowexp.c: Include stap-probe.h.
> 	(__slowexp): Add systemtap probe marker.
> 	* sysdeps/ieee754/dbl-64/slowpow.c: Include stap-probe.h.
> 	(__slowpow): Add systemtap probe marker.

When we introduced the nptl probes, these were all documented as well,
see nptl/DESIGN-systemtap-probes.txt. I'd like to see documentation for
these probes as well.

Andreas
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