Add "show msgbuf" command

1 files changed, 31 insertions, 1 deletions

diff --git a/sys/ddb/db_print.c b/sys/ddb/db_print.c
index 8f7528f..c67c964 100644
--- a/sys/ddb/db_print.c
+++ b/sys/ddb/db_print.c
@@ -23,7 +23,7 @@
  * any improvements or extensions that they make and grant Carnegie the
  * rights to redistribute these changes.
  *
- *	$Id: db_print.c,v 1.13 1997/02/22 09:28:27 peter Exp $
+ *	$Id: db_print.c,v 1.14 1997/06/14 11:52:36 bde Exp $
  */
 
 /*
@@ -35,6 +35,7 @@
  * Miscellaneous printing.
  */
 #include <sys/param.h>
+#include <sys/msgbuf.h>
 
 #include <ddb/ddb.h>
 #include <ddb/db_variables.h>
@@ -65,3 +66,32 @@ db_show_regs(dummy1, dummy2, dummy3, dummy4)
 	db_print_loc_and_inst(PC_REGS(DDB_REGS));
 }
 
+
+void
+db_show_msgbuf(dummy1, dummy2, dummy3, dummy4)
+	db_expr_t	dummy1;
+	boolean_t	dummy2;
+	db_expr_t	dummy3;
+	char *		dummy4;
+{
+	int i,j;
+
+	if (!msgbufmapped) {
+		db_printf("msgbuf not mapped yet\n");
+		return;
+	}
+	db_printf("msgbufp = %p\n", msgbufp);
+	db_printf("magic = %x, size = %d, r= %d, w = %d, ptr = %p\n",
+		msgbufp->msg_magic,
+		msgbufp->msg_size,
+		msgbufp->msg_bufr,
+		msgbufp->msg_bufx,
+		msgbufp->msg_ptr);
+	for (i = 0; i < msgbufp->msg_size; i++) {
+		j = msgbufp->msg_ptr[(i + msgbufp->msg_bufr) % msgbufp->msg_size];
+		if (j)
+			db_printf("%c", j);
+	}
+	db_printf("\n");
+}
+