github.com/ice-blockchain/go/src@v0.0.0-20240403114104-1564d284e521/runtime/internal/atomic/atomic_386.go (about)

     1  // Copyright 2009 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 386
     6  
     7  package atomic
     8  
     9  import "unsafe"
    10  
    11  // Export some functions via linkname to assembly in sync/atomic.
    12  //
    13  //go:linkname Load
    14  //go:linkname Loadp
    15  
    16  //go:nosplit
    17  //go:noinline
    18  func Load(ptr *uint32) uint32 {
    19  	return *ptr
    20  }
    21  
    22  //go:nosplit
    23  //go:noinline
    24  func Loadp(ptr unsafe.Pointer) unsafe.Pointer {
    25  	return *(*unsafe.Pointer)(ptr)
    26  }
    27  
    28  //go:nosplit
    29  //go:noinline
    30  func LoadAcq(ptr *uint32) uint32 {
    31  	return *ptr
    32  }
    33  
    34  //go:nosplit
    35  //go:noinline
    36  func LoadAcquintptr(ptr *uintptr) uintptr {
    37  	return *ptr
    38  }
    39  
    40  //go:noescape
    41  func Xadd64(ptr *uint64, delta int64) uint64
    42  
    43  //go:noescape
    44  func Xadduintptr(ptr *uintptr, delta uintptr) uintptr
    45  
    46  //go:noescape
    47  func Xadd(ptr *uint32, delta int32) uint32
    48  
    49  //go:noescape
    50  func Xchg64(ptr *uint64, new uint64) uint64
    51  
    52  //go:noescape
    53  func Xchg(ptr *uint32, new uint32) uint32
    54  
    55  //go:noescape
    56  func Xchguintptr(ptr *uintptr, new uintptr) uintptr
    57  
    58  //go:noescape
    59  func Load64(ptr *uint64) uint64
    60  
    61  //go:nosplit
    62  //go:noinline
    63  func Load8(ptr *uint8) uint8 {
    64  	return *ptr
    65  }
    66  
    67  //go:noescape
    68  func And8(ptr *uint8, val uint8)
    69  
    70  //go:noescape
    71  func Or8(ptr *uint8, val uint8)
    72  
    73  //go:noescape
    74  func And(ptr *uint32, val uint32)
    75  
    76  //go:noescape
    77  func Or(ptr *uint32, val uint32)
    78  
    79  //go:noescape
    80  func And32(ptr *uint32, val uint32) uint32
    81  
    82  //go:noescape
    83  func Or32(ptr *uint32, val uint32) uint32
    84  
    85  //go:noescape
    86  func And64(ptr *uint64, val uint64) uint64
    87  
    88  //go:noescape
    89  func Or64(ptr *uint64, val uint64) uint64
    90  
    91  //go:noescape
    92  func Anduintptr(ptr *uintptr, val uintptr) uintptr
    93  
    94  //go:noescape
    95  func Oruintptr(ptr *uintptr, val uintptr) uintptr
    96  
    97  // NOTE: Do not add atomicxor8 (XOR is not idempotent).
    98  
    99  //go:noescape
   100  func Cas64(ptr *uint64, old, new uint64) bool
   101  
   102  //go:noescape
   103  func CasRel(ptr *uint32, old, new uint32) bool
   104  
   105  //go:noescape
   106  func Store(ptr *uint32, val uint32)
   107  
   108  //go:noescape
   109  func Store8(ptr *uint8, val uint8)
   110  
   111  //go:noescape
   112  func Store64(ptr *uint64, val uint64)
   113  
   114  //go:noescape
   115  func StoreRel(ptr *uint32, val uint32)
   116  
   117  //go:noescape
   118  func StoreReluintptr(ptr *uintptr, val uintptr)
   119  
   120  // NO go:noescape annotation; see atomic_pointer.go.
   121  func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer)