diff options
Diffstat (limited to 'libgo/misc/cgo/test/issue9400/asm_ppc64x.s')
| -rw-r--r-- | libgo/misc/cgo/test/issue9400/asm_ppc64x.s | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libgo/misc/cgo/test/issue9400/asm_ppc64x.s b/libgo/misc/cgo/test/issue9400/asm_ppc64x.s new file mode 100644 index 00000000000..c88ec3b21e7 --- /dev/null +++ b/libgo/misc/cgo/test/issue9400/asm_ppc64x.s @@ -0,0 +1,32 @@ +// Copyright 2014 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 ppc64 ppc64le +// +build !gccgo + +#include "textflag.h" + +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 + ADD $(1024 * 8), R1 + + // Ask signaller to setgid + MOVW $1, R3 + SYNC + MOVW R3, ·Baton(SB) + + // Wait for setgid completion +loop: + SYNC + MOVW ·Baton(SB), R3 + CMP R3, $0 + // Hint that we're in a spin loop + OR R1, R1, R1 + BNE loop + ISYNC + + // Restore stack + SUB $(1024 * 8), R1 + RET |