[Mesa-dev] llvmpipe support for ARM?

[Marko Moberg]

Hi,

I have been trying to get OpenGL sw rastering to work on Linux based ARM
CortexA15 device but for some reason gallium llvmpipe gives me a
segmentation fault. Has anybody managed to run sw rastering using gallium
llvmpipe on ARM? Softpipe seems to be working ok.

I am using the following versions:
- Mesa 9.2.5
- LLVM3.3
- Wayland/Weston 1.5

The issue is related to opengl/gles2 rendering i.e. weston-simple-egl demo
and Qt openGL demos give seg faults when executed with llvmpipe enabled.

Backtrace from weston-simple-egl looks something like this:
#0  0x6d7de620 in ?? ()
#1  0xb354004c in fs17_variant0_partial ()
#2  0xb6841740 in lp_rast_shade_quads_mask (task=task at entry=0x1e360,
    inputs=inputs at entry=0x47a00, x=128, y=80, mask=4369) at lp_rast.c:466
#3  0xb6842d04 in do_block_4_1 (c=<optimized out>, y=<optimized out>,
    x=<optimized out>, plane=<optimized out>, tri=<optimized out>,
    task=<optimized out>) at lp_rast_tri_tmp.h:61
#4  do_block_16_1 (c=<synthetic pointer>, y=<optimized out>,
    x=<optimized out>, plane=0xb4f4ccf0, tri=<optimized out>,
    task=<optimized out>) at lp_rast_tri_tmp.h:130
#5  lp_rast_triangle_1 (task=0x1e360, arg=...) at lp_rast_tri_tmp.h:232
#6  0xb6840420 in do_rasterize_bin (bin=<optimized out>, task=0x1e360,
    x=<optimized out>, y=<optimized out>) at lp_rast.c:607
#7  rasterize_bin (y=<optimized out>, x=<optimized out>, bin=<optimized
out>,
    task=0x1e360) at lp_rast.c:626
#8  rasterize_scene (task=task at entry=0x1e360, scene=0xb3646008)
    at lp_rast.c:675
#9  0xb6840cb0 in thread_function (init_data=0x1e360) at lp_rast.c:788
#10 0xb6d98ed2 in start_thread () from /lib/libpthread.so.0
#11 0xb6c91058 in ?? () from /lib/libc.so.6
#12 0xb6c91058 in ?? () from /lib/libc.so.6

regards,
Marko

marko.s.moberg at gmail.com
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