github.com/code-reading/golang@v0.0.0-20220303082512-ba5bc0e589a3/go/src/runtime/internal/atomic/atomic_arm64.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build arm64
     6  // +build arm64
     7  
     8  package atomic
     9  
    10  import (
    11  	"internal/cpu"
    12  	"unsafe"
    13  )
    14  
    15  const (
    16  	offsetARM64HasATOMICS = unsafe.Offsetof(cpu.ARM64.HasATOMICS)
    17  )
    18  
    19  //go:noescape
    20  func Xadd(ptr *uint32, delta int32) uint32
    21  
    22  //go:noescape
    23  func Xadd64(ptr *uint64, delta int64) uint64
    24  
    25  //go:noescape
    26  func Xadduintptr(ptr *uintptr, delta uintptr) uintptr
    27  
    28  //go:noescape
    29  func Xchg(ptr *uint32, new uint32) uint32
    30  
    31  //go:noescape
    32  func Xchg64(ptr *uint64, new uint64) uint64
    33  
    34  //go:noescape
    35  func Xchguintptr(ptr *uintptr, new uintptr) uintptr
    36  
    37  //go:noescape
    38  func Load(ptr *uint32) uint32
    39  
    40  //go:noescape
    41  func Load8(ptr *uint8) uint8
    42  
    43  //go:noescape
    44  func Load64(ptr *uint64) uint64
    45  
    46  // NO go:noescape annotation; *ptr escapes if result escapes (#31525)
    47  func Loadp(ptr unsafe.Pointer) unsafe.Pointer
    48  
    49  //go:noescape
    50  func LoadAcq(addr *uint32) uint32
    51  
    52  //go:noescape
    53  func LoadAcq64(ptr *uint64) uint64
    54  
    55  //go:noescape
    56  func LoadAcquintptr(ptr *uintptr) uintptr
    57  
    58  //go:noescape
    59  func Or8(ptr *uint8, val uint8)
    60  
    61  //go:noescape
    62  func And8(ptr *uint8, val uint8)
    63  
    64  //go:noescape
    65  func And(ptr *uint32, val uint32)
    66  
    67  //go:noescape
    68  func Or(ptr *uint32, val uint32)
    69  
    70  //go:noescape
    71  func Cas64(ptr *uint64, old, new uint64) bool
    72  
    73  //go:noescape
    74  func CasRel(ptr *uint32, old, new uint32) bool
    75  
    76  //go:noescape
    77  func Store(ptr *uint32, val uint32)
    78  
    79  //go:noescape
    80  func Store8(ptr *uint8, val uint8)
    81  
    82  //go:noescape
    83  func Store64(ptr *uint64, val uint64)
    84  
    85  // NO go:noescape annotation; see atomic_pointer.go.
    86  func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer)
    87  
    88  //go:noescape
    89  func StoreRel(ptr *uint32, val uint32)
    90  
    91  //go:noescape
    92  func StoreRel64(ptr *uint64, val uint64)
    93  
    94  //go:noescape
    95  func StoreReluintptr(ptr *uintptr, val uintptr)