--- Gnu-Mach/ddb/db_run.h	2020/09/02 04:36:57	1.1
+++ Gnu-Mach/ddb/db_run.h	2020/09/02 04:48:22	1.1.1.3
@@ -24,6 +24,12 @@
  * the rights to redistribute these changes.
  */
 
+#ifndef _DDB_DB_RUN_H_
+#define _DDB_DB_RUN_H_
+
+#include <kern/task.h>
+#include <machine/db_machdep.h>
+
 extern int db_run_mode;
 
 /* modes the system may be running in */
@@ -35,3 +41,54 @@ extern int db_run_mode;
 #define	STEP_CONTINUE	4
 #define STEP_INVISIBLE	5
 #define	STEP_COUNT	6
+
+extern void db_single_step(db_regs_t *regs, task_t task);
+
+extern void db_single_step_cmd(
+	db_expr_t	addr,
+	int		have_addr,
+	db_expr_t	count,
+	const char	*modif);
+
+void db_trace_until_call_cmd(
+	db_expr_t	addr,
+	int		have_addr,
+	db_expr_t	count,
+	const char *	modif);
+
+void db_trace_until_matching_cmd(
+	db_expr_t	addr,
+	int		have_addr,
+	db_expr_t	count,
+	const char *	modif);
+
+void db_continue_cmd(
+	db_expr_t	addr,
+	int		have_addr,
+	db_expr_t	count,
+	const char *	modif);
+
+#ifndef db_set_single_step
+void		db_set_task_single_step(db_regs_t *, task_t);
+#else
+#define	db_set_task_single_step(regs, task)	db_set_single_step(regs)
+#endif
+#ifndef db_clear_single_step
+void		db_clear_task_single_step(const db_regs_t *, task_t);
+#else
+#define db_clear_task_single_step(regs, task)	db_clear_single_step(regs)
+#endif
+
+extern boolean_t db_in_single_step(void);
+
+extern void
+db_restart_at_pc(
+	boolean_t watchpt,
+	task_t	  task);
+
+extern boolean_t
+db_stop_at_pc(
+	boolean_t	*is_breakpoint,
+	task_t		task);
+
+#endif /* _DDB_DB_RUN_H_ */