From 110c707dda7d14af657a0cc184e60eb42af30c88 Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Fri, 21 Apr 2006 03:34:44 +0000
Subject: darwin 386 start

---
 src/libthread/Darwin-386.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 src/libthread/Darwin-386.c

(limited to 'src/libthread/Darwin-386.c')

diff --git a/src/libthread/Darwin-386.c b/src/libthread/Darwin-386.c
new file mode 100644
index 00000000..3725f264
--- /dev/null
+++ b/src/libthread/Darwin-386.c
@@ -0,0 +1,23 @@
+#include "threadimpl.h"
+
+void
+makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
+{
+	int *sp;
+
+	sp = (int*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/4;
+	sp -= argc;
+	memmove(sp, &argc+1, argc*sizeof(int));
+	*--sp = 0;		/* return address */
+	ucp->uc_mcontext.mc_eip = (long)func;
+	ucp->uc_mcontext.mc_esp = (int)sp;
+}
+
+int
+swapcontext(ucontext_t *oucp, ucontext_t *ucp)
+{
+	if(getcontext(oucp) == 0)
+		setcontext(ucp);
+	return 0;
+}
+
-- 
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