From 50f7ec339a85ebe60390edc3c8cfb87bd2f57bc4 Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Fri, 7 Jan 2005 21:47:30 +0000
Subject: initial darwin

---
 src/libthread/Darwin-ucontext.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/libthread/Darwin-ucontext.h

(limited to 'src/libthread/Darwin-ucontext.h')

diff --git a/src/libthread/Darwin-ucontext.h b/src/libthread/Darwin-ucontext.h
new file mode 100644
index 00000000..c7915ff8
--- /dev/null
+++ b/src/libthread/Darwin-ucontext.h
@@ -0,0 +1,24 @@
+typedef struct ucontext ucontext_t;
+struct ucontext
+{
+	ulong	pc;		/* lr */
+	ulong	cr;		/* mfcr */
+	ulong	ctr;		/* mfcr */
+	ulong	xer;		/* mfcr */
+	ulong	sp;		/* callee saved: r1 */
+	ulong	toc;		/* callee saved: r2 */
+	ulong	r3;		/* first arg to function, return register: r3 */
+	ulong	gpr[19];	/* callee saved: r13-r31 */
+// XXX: currently do not save vector registers or floating-point state
+//	ulong	pad;
+//	uvlong	fpr[18];	/* callee saved: f14-f31 */
+//	ulong	vr[4*12];	/* callee saved: v20-v31, 256-bits each */
+};
+
+void makecontext(ucontext_t*, void(*)(void), int, ...);
+void getcontext(ucontext_t*);
+int setcontext(ucontext_t*);
+int swapcontext(ucontext_t*, ucontext_t*);
+int __setlabel(ucontext_t*);
+void __gotolabel(ucontext_t*);
+
-- 
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