[Intel-gfx] [RFC 0/2] strace/drm: Add i915 ioctls to strace

[Jesse Barnes]

On 05/06/2015 07:48 AM, Patrik Jakobsson wrote:
> This patch set aims to make strace more useful when tracing i915 ioctls.
> The ioctl type is first checked for being drm and then the driver
> backing the opened device is identified by looking at sysfs. Other
> drivers than i915 can easily be added.
> 
> Only a subset of the i915 ioctls are included. I will extend this patch
> set if the approach looks ok. The generic drm ioctls are also missing.
> 
> Give it a spin with:
>         strace -e trace=ioctl -p `pidof X`
> 
> Patrik Jakobsson (2):
>   strace/drm: Print extended info for drm and i915 ioctls
>   strace/drm: Print args for most common i915 ioctls
> 
>  Makefile.am                |   2 +
>  defs.h                     |   2 +
>  drm.c                      | 104 +++++++++++++++++
>  drm_i915.c                 | 278 +++++++++++++++++++++++++++++++++++++++++++++
>  ioctl.c                    |   5 +
>  xlat/drm_i915_getparams.in |  28 +++++
>  xlat/drm_i915_ioctls.in    |  51 +++++++++
>  xlat/drm_i915_setparams.in |   4 +
>  8 files changed, 474 insertions(+)
>  create mode 100644 drm.c
>  create mode 100644 drm_i915.c
>  create mode 100644 xlat/drm_i915_getparams.in
>  create mode 100644 xlat/drm_i915_ioctls.in
>  create mode 100644 xlat/drm_i915_setparams.in

Yeah, this looks pretty cool to me.  I'm not familiar with strace
internals, but the split and extensible design looks reasonable; should
make it easy to add other drivers and such in the future.

Who on the strace side can pick this up?

Thanks,
Jesse