Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Test pointer before using it.

Browse Source
This commit is contained in:
pk 1995-01-12 10:17:52 +00:00
parent 0bf4b5b424
commit a78b684574
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
gnu/usr.bin/gdb/gdb/kcorelow.c
View File

@ -17,7 +17,7 @@ You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: kcorelow.c,v 1.2 1994/05/18 12:42:15 pk Exp $ $Id: kcorelow.c,v 1.3 1995/01/12 10:17:52 pk Exp $
*/ */
#ifdef KERNEL_DEBUG #ifdef KERNEL_DEBUG
@ -68,7 +68,7 @@ static CORE_ADDR kernel_start;
(target_read_memory((CORE_ADDR)(addr), (char *)(p), sizeof(*(p)))) (target_read_memory((CORE_ADDR)(addr), (char *)(p), sizeof(*(p))))
static CORE_ADDR CORE_ADDR
ksym_lookup(name) ksym_lookup(name)
const char *name; const char *name;
{ {
@ -151,6 +151,11 @@ kcore_open (filename, from_tty)
int ontop; int ontop;
CORE_ADDR addr; CORE_ADDR addr;
if (exec_bfd == NULL)
error("No kernel image specified");
kernel_start = bfd_get_start_address (exec_bfd); /* XXX */
target_preopen (from_tty); target_preopen (from_tty);
if (!filename) { if (!filename) {
error (core_kd? error (core_kd?
@ -179,8 +184,6 @@ kcore_open (filename, from_tty)
unpush_target (&kcore_ops); unpush_target (&kcore_ops);
ontop = !push_target (&kcore_ops); ontop = !push_target (&kcore_ops);
kernel_start = bfd_get_start_address (exec_bfd); /* XXX */
/* print out the panic string if there is one */ /* print out the panic string if there is one */
if (kvread(ksym_lookup("panicstr"), &addr) == 0 && if (kvread(ksym_lookup("panicstr"), &addr) == 0 &&
addr != 0 && addr != 0 &&