Add "show msgbuf" command

3 files changed, 35 insertions, 3 deletions

diff --git a/sys/ddb/db_command.c b/sys/ddb/db_command.c
index 63a89bb..1bf43de 100644
--- a/sys/ddb/db_command.c
+++ b/sys/ddb/db_command.c
@@ -23,7 +23,7 @@
  * any improvements or extensions that they make and grant Carnegie the
  * rights to redistribute these changes.
  *
- *	$Id: db_command.c,v 1.24 1998/02/09 06:07:52 eivind Exp $
+ *	$Id: db_command.c,v 1.25 1998/02/13 02:19:29 bde Exp $
  */
 
 /*
@@ -369,6 +369,7 @@ static struct command db_show_cmds[] = {
 	{ "all",	0,			0,	db_show_all_cmds },
 	{ "registers",	db_show_regs,		0,	0 },
 	{ "breaks",	db_listbreak_cmd, 	0,	0 },
+	{ "msgbuf",	db_show_msgbuf,		0,	0 },
 #if 0
 	{ "thread",	db_show_one_thread,	0,	0 },
 #endif
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");
+}
+
diff --git a/sys/ddb/ddb.h b/sys/ddb/ddb.h
index a563894..b635ff2 100644
--- a/sys/ddb/ddb.h
+++ b/sys/ddb/ddb.h
@@ -27,7 +27,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ddb.h,v 1.14 1997/02/22 09:28:35 peter Exp $
+ *	$Id: ddb.h,v 1.15 1998/02/13 02:19:29 bde Exp $
  */
 
 /*
@@ -116,6 +116,7 @@ db_cmdfcn_t	db_print_cmd;
 db_cmdfcn_t	db_ps;
 db_cmdfcn_t	db_search_cmd;
 db_cmdfcn_t	db_set_cmd;
+db_cmdfcn_t	db_show_msgbuf;
 db_cmdfcn_t	db_show_regs;
 db_cmdfcn_t	db_single_step_cmd;
 db_cmdfcn_t	db_stack_trace_cmd;