1 files changed, 35 insertions, 0 deletions
diff --git a/src/libthread/power-ucontext.h b/src/libthread/power-ucontext.h
new file mode 100644
index 00000000..a39be28a
--- /dev/null
+++ b/src/libthread/power-ucontext.h
@@ -0,0 +1,35 @@
+typedef struct mcontext mcontext_t;
+typedef struct ucontext ucontext_t;
+struct mcontext
+{
+	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 */
+};
+
+struct ucontext
+{
+	struct {
+		void *ss_sp;
+		uint ss_size;
+	} uc_stack;
+	sigset_t uc_sigmask;
+	mcontext_t mc;
+};
+
+void makecontext(ucontext_t*, void(*)(void), int, ...);
+int getcontext(ucontext_t*);
+int setcontext(ucontext_t*);
+int swapcontext(ucontext_t*, ucontext_t*);
+int _getmcontext(mcontext_t*);
+void _setmcontext(mcontext_t*);
+