On 08.08.13 00:33, [email protected] wrote:
> On Tue, Aug 06, 2013 at 09:12:36PM +0200, [email protected]
> wrote:
>
>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>> Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
>> 0x00000000 in ?? ()
>
> at this point you would type
> bt
> and hope it shows a meaningful stacktrace. Also what version did you compile?
>
> Richard
It looks like the crash occurs during startup in "navit/graphics.c" by
calling (possibly uninitialised, i.e.) a zero-pointer "get_data":
void * graphics_get_data(struct graphics *this_, const char *type)
{
==> return (this_->meth.get_data(this_->priv, type));
}
(gdb) p *this_
$1 = {
parent = 0x0,
priv = 0x0,
meth = {
graphics_destroy = 0,
draw_mode = 0,
draw_lines = 0,
draw_polygon = 0,
draw_rectangle = 0,
draw_circle = 0,
draw_text = 0,
draw_image = 0,
draw_image_warp = 0,
draw_restore = 0,
draw_drag = 0,
font_new = 0,
gc_new = 0,
background_gc = 0,
overlay_new = 0,
image_new = 0,
get_data = 0,
image_free = 0,
get_text_bbox = 0,
overlay_disable = 0,
overlay_resize = 0,
set_attr = 0
},
default_font = 0x0,
font_len = 0,
font = 0x0,
gc = {0x0, 0x0, 0x0},
attrs = 0x120b050,
cbl = 0x120b020,
r = {
lu = {
x = 0,
y = 0
},
rl = {
x = 0,
y = 0
}
},
gamma = 65536,
brightness = 0,
contrast = 65536,
colormgmt = 0,
font_size = 20,
selection = 0x0,
disabled = 0,
current_z_order = 0,
image_cache_hash = 0x2251c8
}
I have setup "internal-gui" and "qpainter" graphics in navit.xml.
Where should "this_->meth" get initialised?
Eeri Kask
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