[Mesa-dev] [PATCH 19/19] mesa/tests: Sanity check the ES2 dispatch table

[Paul Berry]

On 28 September 2012 14:15, Ian Romanick <idr at freedesktop.org> wrote:

> On 09/28/2012 01:55 PM, Paul Berry wrote:
>
>> On 5 September 2012 15:09, Ian Romanick <idr at freedesktop.org
>> <mailto:idr at freedesktop.org>> wrote:
>>
>>     From: Ian Romanick <ian.d.romanick at intel.com
>>     <mailto:ian.d.romanick at intel.**com <ian.d.romanick at intel.com>>>
>>
>>
>>     This test is only built when shared-glapi is used.  Because of changes
>>     elsewhere in the tree that were necessary to make shared-glapi work
>>     correct with GLX, it's not feasible to make the test function both
>> ways.
>>
>>     Signed-off-by: Ian Romanick <ian.d.romanick at intel.com
>>     <mailto:ian.d.romanick at intel.**com <ian.d.romanick at intel.com>>>
>>
>>
>>
>> This test is failing on my system when I run "make check":
>>
>> [----------] 1 test from DispatchSanity_test
>> [ RUN      ] DispatchSanity_test.GLES2
>> Mesa warning: couldn't open libtxc_dxtn.so, software DXTn
>> compression/decompression unavailable
>> dispatch_sanity.cpp:122: Failure
>> Value of: table[i]
>>    Actual: 0x4de54e
>> Expected: (_glapi_proc) _mesa_generic_nop
>> Which is: 0x41af72
>> i = 321
>> [  FAILED  ] DispatchSanity_test.GLES2 (4 ms)
>> [----------] 1 test from DispatchSanity_test (4 ms total)
>>
>> Is anybody else getting this problem?
>>
>
> Can you put the following in the SET_by_offset macro
> (src/mesa/main/dispatch.h in your build directory):
>
>     if (offset == 321) abort(); \
>
> then backtrace to see what API function is at fault?


Argh, for reasons I haven't figured out yet, the failure only happens when
I run "make check".  It doesn't happen when I run the test directly from
the command line (or in the debugger), which makes backtracing difficult :)

Probably there is something wrong with my build environment.  I'll
troubleshoot some more on my own and get back to you if I don't get
anywhere.
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