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diff libgo/misc/cgo/test/issue9400/asm_s390x.s @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgo/misc/cgo/test/issue9400/asm_s390x.s	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,26 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+TEXT ·RewindAndSetgid(SB),NOSPLIT,$0-0
+	// Rewind stack pointer so anything that happens on the stack
+	// will clobber the test pattern created by the caller
+	ADD	$(1024 * 8), R15
+
+	// Ask signaller to setgid
+	MOVD	$·Baton(SB), R5
+	MOVW	$1, 0(R5)
+
+	// Wait for setgid completion
+loop:
+	SYNC
+	MOVW	·Baton(SB), R3
+	CMPBNE	R3, $0, loop
+
+	// Restore stack
+	SUB	$(1024 * 8), R15
+	RET