changes to gdb to:

1) add Garrett Wollman's trap frame resolving mods
2) make the `proc' command (kernel debugging) really work
3) allow use of a pid with the `proc' command (previously you had to
provide the address of the proc structure)

Unfortunately, the `proc' command won't work while doing remote debugging.

1 files changed, 19 insertions, 4 deletions

diff --git a/gnu/usr.bin/gdb/gdb/kcorelow.c b/gnu/usr.bin/gdb/gdb/kcorelow.c
index e08c486b3fef..0439dcdc2fa0 100644
--- a/gnu/usr.bin/gdb/gdb/kcorelow.c
+++ b/gnu/usr.bin/gdb/gdb/kcorelow.c
@@ -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
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-	$Id: kcorelow.c,v 1.3 1995/04/26 01:01:09 jkh Exp $
+	$Id: kcorelow.c,v 1.4 1995/05/30 04:57:22 rgrimes Exp $
 */
 
 #include "defs.h"
@@ -31,6 +31,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 #include <sys/time.h>
 #include <sys/proc.h>
 #include <sys/user.h>
+#include <sys/sysctl.h>
 #include "frame.h"  /* required by inferior.h */
 #include "inferior.h"
 #include "symtab.h"
@@ -67,7 +68,8 @@ static CORE_ADDR	kernel_start;
 #define kvread(addr, p) \
 	(target_read_memory((CORE_ADDR)(addr), (char *)(p), sizeof(*(p))))
 
-extern read_pcb (int, CORE_ADDR);
+int read_pcb (int, CORE_ADDR);
+extern struct kinfo_proc* kvm_getprocs (int, int, CORE_ADDR, int*);
 
 CORE_ADDR
 ksym_lookup(name)
@@ -322,6 +324,8 @@ set_proc_cmd(arg)
 	char *arg;
 {
 	CORE_ADDR paddr;
+	struct kinfo_proc *kp;
+	int cnt = 0;
 
 	if (!arg)
 		error_no_arg("proc address for new current process");
@@ -329,8 +333,19 @@ set_proc_cmd(arg)
 		error("not debugging kernel");
 
 	paddr = (CORE_ADDR)parse_and_eval_address(arg);
-        if (set_proc_context(paddr))
-                error("invalid proc address");
+fprintf(stderr, "paddr %#x kernel_start %#x ", paddr, kernel_start);
+	/* assume it's a proc pointer if it's in the kernel */
+	if (paddr >= kernel_start) {
+        	if (set_proc_context(paddr))
+        	        error("invalid proc address");
+	} else {
+		kp = kvm_getprocs(core_kd, KERN_PROC_PID, paddr, &cnt);
+fprintf(stderr, "cnt %d\n", cnt);
+		if (!cnt)
+        	        error("invalid pid");
+        	if (set_proc_context((CORE_ADDR)kp->kp_eproc.e_paddr))
+                	error("invalid proc address");
+	}
 }
 
 struct target_ops kcore_ops = {