[Dri-users] debugging 3d prog, radeon_dri, _mesa_test_os_sse_exception_support ()

[Vincent K. <vi...@ie...>]

hi

i'm trying to debug a program wich usually runs well (apart the
segfault i'm investigating). sadly, when i run this prog through
gdb it segfault at window creation, far before the moment i expected.

i'm looking for a way to disable this sse test without having
to build mesa or dri with --disable-sse (this param is from mesa),
like an env var.

i'm using radeon 7500 with XF4.3 on mdk9.1

glxinfo output for driver:
OpenGL renderer string: Mesa DRI Radeon 20030328 AGP 4x
x86/MMX+/3DNow!+/SSE TCL
OpenGL version string: 1.2 Mesa 5.0.1

it's also unclear to me wether i should use the dri snapshots driver
since the merge occured with XF4.3 or not.
are those released after the merge OK ?

the prog being debugged is walktest, from crystal space 3d engine.
before running it i used 'set environment CRYSTAL=/path/to/CS'

thank you for any help

(gdb) bt
#0  0x40992738 in _mesa_test_os_sse_exception_support ()
   from /usr/X11R6/lib/modules/dri/radeon_dri.so
#1  0x409924b2 in check_os_sse_support () at common_x86.c:191
#2  0x409925d4 in _mesa_init_all_x86_transform_asm () at
common_x86.c:275
#3  0x40917e9b in _math_init () at m_xform.c:219
#4  0x408adee2 in one_time_init (ctx=0xa1d5530) at context.c:564
#5  0x408b01a0 in _mesa_initialize_context (ctx=0xa1d5530,
visual=0xbfffef10,
    share_list=0x0, driver_ctx=0xa293e18, direct=1 '\001') at
context.c:1664
#6  0x408b0ae5 in _mesa_create_context (visual=0xbfffef10,
share_list=0x0,
    driver_ctx=0xa293e18, direct=1 '\001') at context.c:1901
#7  0x40997af4 in radeonCreateContext (glVisual=0xbfffef10,
driContextPriv=0xa2a66d8,
    sharedContextPrivate=0x0) at radeon_context.c:253
#8  0x4089e019 in driCreateContext (dpy=0xa26f940, vis=0xa2839c0,
sharedPrivate=0x0,
    pctx=0xa293e04, fbconfig=0xffffffff) at dri_util.c:945
#9  0x4042f9ea in _glthread_SetTSD () from /usr/X11R6/lib/libGL.so.1
#10 0x4042fb1e in glXCreateContext () from /usr/X11R6/lib/libGL.so.1
#11 0x406b49ab in csGraphics2DGLX::CreateVisuals() (this=0xa26aff8)
    at plugins/video/canvas/openglx/glx2d.cpp:276
#12 0x406b444a in csGraphics2DGLX::Open() (this=0xa26aff8)
    at plugins/video/canvas/openglx/glx2d.cpp:142
#13 0x40357db0 in csGraphics3DOGLCommon::NewOpen() (this=0xa260950)
    at plugins/video/renderer/opengl/ogl_g3dcom.cpp:793
#14 0x40351cb5 in csGraphics3DOpenGL::Open() (this=0xa260950)
    at plugins/video/renderer/opengl/ogl_g3d.cpp:65
#15 0x403564f8 in csGraphics3DOGLCommon::HandleEvent(iEvent&)
(this=0xa260950,
    Event=@0xbffff360) at
plugins/video/renderer/opengl/ogl_g3dcom.cpp:434
#16 0x403727af in
csGraphics3DOGLCommon::EventHandler::HandleEvent(iEvent&) (
    this=0xa26a4d0, ev=@0xbffff360) at
plugins/video/renderer/opengl/ogl_g3dcom.h:897
#17 0x080de12c in csEventQueue::Dispatch(iEvent&) (this=0x81a6808,
e=@0xbffff360)
    at libs/csutil/cseventq.cpp:236
#18 0x080b76f8 in csInitializer::OpenApplication(iObjectRegistry*)
(r=0x9f39228)
    at libs/cstool/initapp.cpp:349
#19 0x08076725 in WalkTest::Initialize(int, char const* const*, char
const*) (
    this=0x81a64f8, argc=1, argv=0xbffff704, iConfigName=0x8138810
"/config/walktest.cfg")
    at apps/walktest/walktest.cpp:1240
#20 0x0807892b in main (argc=1, argv=0xbffff704) at
apps/walktest/walktest.cpp:1662
#21 0x4018b7f7 in __libc_start_main () from /lib/i686/libc.so.6