No luck with latest CVS version (GNU gdb
6.3.0.20050407-cvs):
(gdb) bt
warning: GDB can't find the start of the function at
0x658.
GDB is unable to find the start of the function at
0x658
and thus can't determine the size of that function's
stack frame.
This means that GDB may be unable to access that stack
frame, or
the frames below it.
This problem is most likely caused by an invalid
program counter or
stack pointer.
However, if you think GDB should simply search
farther back
from 0x658 for code which looks like the beginning of
a
function, you can increase the range of the search
using the `set
heuristic-fence-post' command.
warning: GDB can't find the start of the function at
0x658.
Previous frame identical to this frame (corrupt
stack?)
(gdb) t
[Current thread is 1 (process 362)]
(gdb) bt
#0 0x00000658 in ?? ()
#1 0x00000658 in ?? ()
(gdb) info registers
zero at v0 v1 a0
a1 a2 a3
R0 00000000 2ab01970 00000000 00000338 00000000
00000000 00000000 00000db0
t0 t1 t2 t3 t4
t5 t6 t7
R8 0dafd6e5 00000001 2abccfd4 2abc8034 00000001
2aac2948 00000001 2abe0ce4
s0 s1 s2 s3 s4
s5 s6 s7
R16 00400f70 7fff7e74 00400ed0 00000001 00400c70
00000000 10010f80 00000000
t8 t9 k0 k1 gp
sp s8 ra
R24 00000263 2ad2c788 2af318b5 00000000 2af8dab0
7fff7bf0 7fff7bf0 2abe0ce4
sr lo hi bad cause
pc
00800008 00108413 0001b4e9 800649b8 2ad2c7c8
00000658
fsr fir
00000000 00000000
(gdb)
Regards,
Brian
--- Daniel Jacobowitz <dan@xxxxxxxxxx> wrote:
> On Thu, Apr 07, 2005 at 10:44:54AM -0700, Brian
> Kuschak wrote:
> > Is anyone succesfully using gdb for mipsel to
> debug
> > core dumps? If so, can you share your secrets for
> > success? I tried various recent versions (6.3,
> > 6.1.1), but backtrace never works right, even
> though
> > the stack pointer appears to be valid. gdb-5.3
> > partially works, but not completely.
>
> Give the CVS version a try, please.
>
> --
> Daniel Jacobowitz
> CodeSourcery, LLC
>
>
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