1 files changed, 105 insertions, 0 deletions
diff --git a/sys/ddb/db_thread.c b/sys/ddb/db_thread.c
new file mode 100644
index 0000000..b58f0b0
--- /dev/null
+++ b/sys/ddb/db_thread.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2004 Marcel Moolenaar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kdb.h>
+#include <sys/proc.h>
+
+#include <machine/pcb.h>
+
+#include <ddb/ddb.h>
+#include <ddb/db_command.h>
+#include <ddb/db_sym.h>
+
+void
+db_print_thread(void)
+{
+	db_printf("[thread %ld]\n", (long)kdb_thread->td_tid);
+}
+
+void
+db_set_thread(db_expr_t tid, boolean_t hastid, db_expr_t cnt, char *mod)
+{
+	struct thread *thr;
+	db_expr_t radix;
+	int err;
+
+	/*
+	 * We parse our own arguments. We don't like the default radix.
+	 */
+	radix = db_radix;
+	db_radix = 10;
+	hastid = db_expression(&tid);
+	db_radix = radix;
+	db_skip_to_eol();
+
+	if (hastid) {
+		thr = kdb_thr_lookup(tid);
+		if (thr != NULL) {
+			err = kdb_thr_select(thr);
+			if (err != 0) {
+				db_printf("unable to switch to thread %ld\n",
+				    (long)thr->td_tid);
+				return;
+			}
+			db_dot = PC_REGS();
+		} else {
+			db_printf("%d: invalid thread\n", (int)tid);
+			return;
+		}
+	}
+
+	db_print_thread();
+	db_print_loc_and_inst(PC_REGS());
+}
+
+void
+db_show_threads(db_expr_t addr, boolean_t hasaddr, db_expr_t cnt, char *mod)
+{
+	jmp_buf jb;
+	void *prev_jb;
+	struct thread *thr;
+	int pager_quit;
+
+	db_setup_paging(db_simple_pager, &pager_quit, DB_LINES_PER_PAGE);
+
+	pager_quit = 0;
+	thr = kdb_thr_first();
+	while (!pager_quit && thr != NULL) {
+		db_printf("  %6ld (%p)  ", (long)thr->td_tid, thr);
+		prev_jb = kdb_jmpbuf(jb);
+		if (setjmp(jb) == 0) {
+			if (db_trace_thread(thr, 1) != 0)
+				db_printf("***\n");
+		}
+		kdb_jmpbuf(prev_jb);
+		thr = kdb_thr_next(thr);
+	}
+}