On Jul 22, 2008, at 5:07 AM, Glynn Clements wrote:
Michael Barton wrote:
After some delays, I managed to recompile GRASS 7 with CFLAGS="-arch
i386 -g", etc so that gdb would produce useful output, and with TclTk
8.5 aqua for Mac. Running nviz in gdb gives the results below.
Hopefully these are more helpful. It freezes at the last line.
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000024
0x0001702d in Togl_CreateWindow (tkwin=0x1fdb608, parent=30857160,
instanceData=0x758db0) at togl.c:2338
2338 if (!aglSetDrawable(togl->aglCtx,
The complete line is:
if (!aglSetDrawable(togl->aglCtx,
# if defined(TOGL_AGL)
((MacDrawable *) (window))->toplevel->grafPtr
# else
((MacDrawable *) (window))->toplevel->portPtr
# endif
)) {
togl and togl->aglCtx are known to be non-NULL (otherwise it would
have crashed before then). Can you try the following:
print ((MacDrawable *) (window))
print ((MacDrawable *) (window))->toplevel
print ((MacDrawable *) (window))->toplevel->grafPtr
I'm assuming that you mean to enter these lines in gdb. Here is the
result.
(gdb) run -f $GISBASE/etc/nviz2.2/scripts/nviz2.2_script -q
Starting program: /Applications/Grass/GRASS-7.0.app/Contents/MacOS/etc/
nviz2.2/nviz -f $GISBASE/etc/nviz2.2/scripts/nviz2.2_script -q
Reading symbols for shared libraries ++++++++++++++++++++++
+
...................................................................................... done
Reading symbols for shared libraries . done
Reading symbols for shared libraries ....... done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x0000002c
0x0001702d in Togl_CreateWindow (tkwin=0x1d89608, parent=30902152,
instanceData=0x7579c0) at togl.c:2338
2338 if (!aglSetDrawable(togl->aglCtx,
(gdb) print ((MacDrawable *) (window))
No symbol "MacDrawable" in current context.
(gdb) print ((MacDrawable *) (window))->toplevel
No symbol "MacDrawable" in current context.
(gdb) print ((MacDrawable *) (window))->toplevel->grafPtr
No symbol "MacDrawable" in current context.
Michael
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