debugging using kcore

Antoine DROUIN (drouin@stna.dgac.fr)
Mon, 27 Sep 1999 18:07:57 +0200


Hi,

We're running linux 2.2.12 and have some trouble using gdb with kcore on the
running kernel.

We built kernel with -g option but gdb see only some symbols. In the
example above we tried to see 2 symbols from printk.c but type return are
strange...

2.0.32 kernel, and have no problem with kcore, so did we made a mistach or kcore
is not usable in 2.2.12 ?? Or is gdb not usable with kcore ?

Thank you very much for your help.

Regards,

Antoine Drouin

-----------------------------------------------------------
[root@moliere /root]# gdb /usr/src/linux/vmlinux /proc/kcore
GNU gdb 4.17.0.11 with Linux support
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...

Register st0 not found in core file.
(gdb) ptype log_buf
type = char [16384]
(gdb) ptype log_start
type = <data variable, no debug info>
(gdb)

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