1 files changed, 29 insertions, 2 deletions
diff --git a/src/pkg/runtime/defs_plan9_386.h b/src/pkg/runtime/defs_plan9_386.h
index 58fd9d94d..bde299dee 100644
--- a/src/pkg/runtime/defs_plan9_386.h
+++ b/src/pkg/runtime/defs_plan9_386.h
@@ -1,2 +1,29 @@
-// nothing to see here
-#define tos_pid 48
+#define PAGESIZE 0x1000
+
+typedef struct Ureg Ureg;
+
+struct Ureg
+{
+	uint32	di;		/* general registers */
+	uint32	si;		/* ... */
+	uint32	bp;		/* ... */
+	uint32	nsp;
+	uint32	bx;		/* ... */
+	uint32	dx;		/* ... */
+	uint32	cx;		/* ... */
+	uint32	ax;		/* ... */
+	uint32	gs;		/* data segments */
+	uint32	fs;		/* ... */
+	uint32	es;		/* ... */
+	uint32	ds;		/* ... */
+	uint32	trap;		/* trap type */
+	uint32	ecode;		/* error code (or zero) */
+	uint32	pc;		/* pc */
+	uint32	cs;		/* old context */
+	uint32	flags;		/* old flags */
+	union {
+		uint32	usp;
+		uint32	sp;
+	};
+	uint32	ss;		/* old stack segment */
+};