golang atomic_amd64 代码
文件路径：/src/runtime/internal/atomic/atomic_amd64.go
/ Copyright 2009 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.
package atomic
import "unsafe"
/ Export some functions via linkname to assembly in sync/atomic.
/
/go:linkname Load
/go:linkname Loadp
/go:linkname Load64
/go:nosplit
/go:noinline
func Load(ptr *uint32) uint32 {
return *ptr
}
/go:nosplit
/go:noinline
func Loadp(ptr unsafe.Pointer) unsafe.Pointer {
return *(*unsafe.Pointer)(ptr)
}
/go:nosplit
/go:noinline
func Load64(ptr *uint64) uint64 {
return *ptr
}
/go:nosplit
/go:noinline
func LoadAcq(ptr *uint32) uint32 {
return *ptr
}
/go:nosplit
/go:noinline
func LoadAcq64(ptr *uint64) uint64 {
return *ptr
}
/go:nosplit
/go:noinline
func LoadAcquintptr(ptr *uintptr) uintptr {
return *ptr
}
/go:noescape
func Xadd(ptr *uint32, delta int32) uint32
/go:noescape
func Xadd64(ptr *uint64, delta int64) uint64
/go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr
/go:noescape
func Xchg(ptr *uint32, new uint32) uint32
/go:noescape
func Xchg64(ptr *uint64, new uint64) uint64
/go:noescape
func Xchguintptr(ptr *uintptr, new uintptr) uintptr
/go:nosplit
/go:noinline
func Load8(ptr *uint8) uint8 {
return *ptr
}
/go:noescape
func And8(ptr *uint8, val uint8)
/go:noescape
func Or8(ptr *uint8, val uint8)
/go:noescape
func And(ptr *uint32, val uint32)
/go:noescape
func Or(ptr *uint32, val uint32)
/ NOTE: Do not add atomicxor8 (XOR is not idempotent).
/go:noescape
func Cas64(ptr *uint64, old, new uint64) bool
/go:noescape
func CasRel(ptr *uint32, old, new uint32) bool
/go:noescape
func Store(ptr *uint32, val uint32)
/go:noescape
func Store8(ptr *uint8, val uint8)
/go:noescape
func Store64(ptr *uint64, val uint64)
/go:noescape
func StoreRel(ptr *uint32, val uint32)
/go:noescape
func StoreRel64(ptr *uint64, val uint64)
/go:noescape
func StoreReluintptr(ptr *uintptr, val uintptr)
/ StorepNoWB performs *ptr = val atomically and without a write
/ barrier.
/
/ NO go:noescape annotation; see atomic_pointer.go.
func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer)