Bug#217954: a better stack trace

[Jim Watson <jim@amarooas.com.au>]

i got this from the setup.bin in the precompiled version linux sparc
(no debugging symbols found)...
(no debugging symbols found)...[New Thread 32769 (LWP 26714)]
[New Thread 16386 (LWP 26904)]
[New Thread 32771 (LWP 26932)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 24294)]
0x70801154 in ExtendedXlfd::GetAsciiEncoding(int*) const () from
./libvcl645ls.so
(gdb) where
#0  0x70801154 in ExtendedXlfd::GetAsciiEncoding(int*) const () from
./libvcl645ls.so
#1  0x707feaac in ExtendedFontStruct::GetAsciiEncoding(int*) const () from
./libvcl645ls.so
#2  0x707fe894 in ExtendedFontStruct::ExtendedFontStruct(_XDisplay*,
unsigned short, unsigned char, ExtendedXlfd*)
    () from ./libvcl645ls.so
#3  0x70805174 in SalDisplay::GetFont(ExtendedXlfd const*, int, unsigned
char) () from ./libvcl645ls.so
#4  0x708055fc in SalGraphicsData::SetFont(ImplFontSelectData const*, int)
() from ./libvcl645ls.so
#5  0x70806db4 in SalGraphics::SetFont(ImplFontSelectData*, int) () from
./libvcl645ls.so
#6  0x706d3e00 in OutputDevice::ImplInitFont() () from ./libvcl645ls.so
#7  0x706d4028 in OutputDevice::ImplNewFont() () from ./libvcl645ls.so
#8  0x706d9f50 in OutputDevice::GetTextHeight() const () from
./libvcl645ls.so
#9  0x707792d0 in Window::ImplInitAppFontData(Window*) () from
./libvcl645ls.so
#10 0x706c0948 in InverseColorMap::ImplCreateBuffers(unsigned long) () from
./libvcl645ls.so
#11 0x706c5330 in Window::ImplLogicUnitToPixelX(long, MapUnit) () from
./libvcl645ls.so
#12 0x7077af8c in Window::ImplLoadRes(ResId const&) () from ./libvcl645ls.so
#13 0x707c6dcc in FixedText::FixedText(Window*, ResId const&) () from
./libvcl645ls.so
#14 0x0002cc44 in LeftWin::LeftWin(Window*, long long, ResMgr*) ()
#15 0x0002b3f0 in SetupWindow::InitChildren(ResMgr*) ()
#16 0x00021b38 in SetupApp::Main() ()
#17 0x0002a054 in sal_main ()
#18 0x0002a03c in main ()
#19 0x713f8e54 in __libc_start_main () from /lib/libc.so.6
(gdb)