Files
gvisor/pkg/sleep/commit_amd64.s
T
Michael Pratt 4d52a55201 Change copyright notice to "The gVisor Authors"
Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.

1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.

Fixes #209

PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-29 14:26:23 -07:00

36 lines
1.0 KiB
ArmAsm

// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "textflag.h"
#define preparingG 1
// See commit_noasm.go for a description of commitSleep.
//
// func commitSleep(g uintptr, waitingG *uintptr) bool
TEXT ยทcommitSleep(SB),NOSPLIT,$0-24
MOVQ waitingG+8(FP), CX
MOVQ g+0(FP), DX
// Store the G in waitingG if it's still preparingG. If it's anything
// else it means a waker has aborted the sleep.
MOVQ $preparingG, AX
LOCK
CMPXCHGQ DX, 0(CX)
SETEQ AX
MOVB AX, ret+16(FP)
RET