Implement db_stack_dump - a function that will print a stack

trace with printf (to the console and into the msgbuf).

1 files changed, 21 insertions, 1 deletions

diff --git a/sys/ddb/db_output.c b/sys/ddb/db_output.c
index bc55e0f9723..01e43954719 100644
--- a/sys/ddb/db_output.c
+++ b/sys/ddb/db_output.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: db_output.c,v 1.18 2002/05/14 16:12:33 art Exp $	*/
+/*	$OpenBSD: db_output.c,v 1.19 2002/05/18 18:22:46 art Exp $	*/
 /*	$NetBSD: db_output.c,v 1.13 1996/04/01 17:27:14 christos Exp $	*/
 
 /* 
@@ -240,3 +240,23 @@ db_format(char *buf, size_t bufsize, long val, int format, int alt, int width)
 
 	return (buf);
 }
+
+void
+db_stack_dump(void)
+{
+	static int intrace;
+
+	if (intrace) {
+db_panic = 1;
+panic("foo");
+		printf("Faulted in traceback, aborting...\n");
+		return;
+	}
+
+	intrace = 1;
+	printf("Starting stack trace...\n");
+	db_stack_trace_print((db_expr_t)__builtin_frame_address(0), TRUE,
+	    256 /* low limit */, "", printf);
+	printf("End of stack trace.\n");
+	intrace = 0;
+}