Import sources from 2011-03-30 iso image

1 files changed, 26 insertions, 0 deletions

diff --git a/sys/src/libthread/amd64.c b/sys/src/libthread/amd64.c
new file mode 100755
index 000000000..c0b0e30e1
--- /dev/null
+++ b/sys/src/libthread/amd64.c
@@ -0,0 +1,26 @@
+#include <u.h>
+#include <libc.h>
+#include <thread.h>
+#include "threadimpl.h"
+
+/* first argument goes in a register; simplest just to ignore it */
+static void
+launcheramd64(int, void (*f)(void *arg), void *arg)
+{
+	(*f)(arg);
+	threadexits(nil);
+}
+
+void
+_threadinitstack(Thread *t, void (*f)(void*), void *arg)
+{
+	uvlong *tos;
+
+	tos = (uvlong*)&t->stk[t->stksize&~7];
+	*--tos = (uvlong)arg;
+	*--tos = (uvlong)f;
+	*--tos = 0;	/* first arg to launcheramd64 */
+	t->sched[JMPBUFPC] = (uvlong)launcheramd64+JMPBUFDPC;
+	t->sched[JMPBUFSP] = (uvlong)tos - 2*8;		/* old PC and new PC */
+}
+