[Mesa-dev] Gallium debugging help

[James Simmons]

Hello.

	I'm the main developer from the Openchrome project and we have 
reached the point were work is being started for the Gallium driver for 
VIA hardware. To help develope a stable simple start I decided to go for
bare bones libgbm support using a gallium backend. So like any start my
simple libgbm app fails at the start. Well to figure it out I need to 
debug my gallium driver. So I started to read up on how to debug gallium 
and so I attempted to use the trace pipe driver. So the command I used
was

GALLIUM_TRACE=~/gallium.trace;./gbmtest

but no XML file was generated. What am I doing wrong? How do I properly 
debug? Thanks for your help. Once I get this working I will push to 
master.