PERFORCE change 136519 for review
Randall R. Stewart
rrs at FreeBSD.org
Fri Feb 29 21:33:14 UTC 2008
http://perforce.freebsd.org/chv.cgi?CH=136519
Change 136519 by rrs at rrs-mips2-jnpr on 2008/02/29 21:32:25
Adds a ddb show command to dump out things about the ttys.
Affected files ...
.. //depot/projects/mips2-jnpr/src/sys/kern/tty.c#3 edit
Differences ...
==== //depot/projects/mips2-jnpr/src/sys/kern/tty.c#3 (text+ko) ====
@@ -75,6 +75,7 @@
#include "opt_compat.h"
#include "opt_tty.h"
+#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
@@ -3469,6 +3470,54 @@
ttsetwater(tp);
}
+#ifdef DDB
+void db_dump_all_ttys(void);
+
+
+void
+db_dump_all_ttys(void)
+{
+ struct tty *tp;
+
+ TAILQ_FOREACH(tp, &tty_list, t_list) {
+ printf("********************************************************\n");
+ printf("tp:%p dev:%p t_mdev:%p unit:%d state:%x flags:%x mutex:%p\n",
+ tp, tp->t_dev, tp->t_mdev, (int)tp->t_devunit, (uint32_t) tp->t_state,
+ (uint32_t) tp->t_flags, &tp->t_mtx);
+ printf("driver sc:%p linedisc sc:%p hi_input:%d low_input:%d hi_output:%d low_output:%d\n",
+ tp->t_sc, tp->t_lsc,
+ tp->t_ihiwat, tp->t_ilowat,
+ tp->t_ohiwat, tp->t_olowat);
+ printf("output state c_cc:%d n_cb:%d max_cb:%d t_outcc:%ld\n",
+ tp->t_outq.c_cc, tp->t_outq.c_cbcount, tp->t_outq.c_cbmax,
+ tp->t_outcc
+ );
+ printf("input state (raw) c_cc:%d n_cb:%d max_cb:%d t_rawcc:%ld\n",
+ tp->t_rawq.c_cc, tp->t_rawq.c_cbcount, tp->t_rawq.c_cbmax,
+ tp->t_rawcc
+ );
+ printf("input state (can) c_cc:%d n_cb:%d max_cb:%d t_cancc:%ld\n",
+ tp->t_canq.c_cc, tp->t_canq.c_cbcount, tp->t_canq.c_cbmax,
+ tp->t_cancc
+ );
+ printf("tp->t_line:%d l_rint:%p l_start:%p\n", tp->t_line,
+ linesw[tp->t_line]->l_rint,
+ linesw[tp->t_line]->l_start
+ );
+
+ }
+}
+
+#include <sys/kernel.h>
+#include <ddb/ddb.h>
+
+DB_SHOW_COMMAND(ttys, ddb_dump_all_ttys)
+{
+ db_dump_all_ttys();
+}
+
+#endif
+
/*
* Record the relationship between the serial ports notion of modem control
* signals and the one used in certain ioctls in a way the compiler can enforce
More information about the p4-projects
mailing list