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go/misc/cgo/test/testdata/issue9400/asm_amd64x.s
Bryan C. Mills 551af5f50a misc/cgo/test: fix tests in module mode
This change preserves the ability to test misc/cgo/test in GOPATH
mode, at the cost of indirection through a 'go test' subprocess.

Updates #30228

Change-Id: I08de855e62278d30fa622b2f7478e43dd2ab0e96
Reviewed-on: https://go-review.googlesource.com/c/163418
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-24 00:35:18 +00:00

28 lines
594 B
ArmAsm

// 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 amd64 amd64p32
// +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
ADDQ $(1024 * 8), SP
// Ask signaller to setgid
MOVL $1, ·Baton(SB)
// Wait for setgid completion
loop:
PAUSE
MOVL ·Baton(SB), AX
CMPL AX, $0
JNE loop
// Restore stack
SUBQ $(1024 * 8), SP
RET