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misc/cgo/test: add mips64x test case for issue9400 

Change-Id: If2b4abb6ff322c20e35de025298c8e5ab53edd42
Reviewed-on: https://go-review.googlesource.com/19808
Reviewed-by: Minux Ma <minux@golang.org>
This commit is contained in:
Cherry Zhang 2016-04-27 22:18:38 -04:00 committed by Minux Ma
parent dcd613862b
commit 094e5a9288
1 changed files with 33 additions and 0 deletions
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33
misc/cgo/test/issue9400/asm_mips64x.s Normal file
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// 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 mips64 mips64le
// +build !gccgo
#include "textflag.h"
#define SYNC WORD $0xf
TEXT ·RewindAndSetgid(SB),NOSPLIT|NOFRAME,$0-0
// Rewind stack pointer so anything that happens on the stack
// will clobber the test pattern created by the caller
ADDV $(1024*8), R29
// Ask signaller to setgid
MOVW $1, R1
SYNC
MOVW R1, ·Baton(SB)
SYNC
// Wait for setgid completion
loop:
SYNC
MOVW ·Baton(SB), R1
OR R2, R2, R2 // hint that we're in a spin loop
BNE R1, loop
SYNC
// Restore stack
ADDV $(-1024*8), R29
RET