diff options
Diffstat (limited to 'src/runtime/atomic.go')
-rw-r--r-- | src/runtime/atomic.go | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/src/runtime/atomic.go b/src/runtime/atomic.go deleted file mode 100644 index a0e4d84e9..000000000 --- a/src/runtime/atomic.go +++ /dev/null @@ -1,81 +0,0 @@ -// 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 !arm - -package runtime - -import "unsafe" - -//go:noescape -func xadd(ptr *uint32, delta int32) uint32 - -//go:noescape -func xadd64(ptr *uint64, delta int64) uint64 - -//go:noescape -func xchg(ptr *uint32, new uint32) uint32 - -//go:noescape -func xchg64(ptr *uint64, new uint64) uint64 - -// Cannot use noescape here: ptr does not but new does escape. -// Instead use noescape(ptr) in wrapper below. -func xchgp1(ptr unsafe.Pointer, new unsafe.Pointer) unsafe.Pointer - -//go:nosplit -func xchgp(ptr unsafe.Pointer, new unsafe.Pointer) unsafe.Pointer { - old := xchgp1(noescape(ptr), new) - writebarrierptr_nostore((*uintptr)(ptr), uintptr(new)) - return old -} - -//go:noescape -func xchguintptr(ptr *uintptr, new uintptr) uintptr - -//go:noescape -func atomicload(ptr *uint32) uint32 - -//go:noescape -func atomicload64(ptr *uint64) uint64 - -//go:noescape -func atomicloadp(ptr unsafe.Pointer) unsafe.Pointer - -//go:noescape -func atomicor8(ptr *uint8, val uint8) - -//go:noescape -func cas64(ptr *uint64, old, new uint64) bool - -//go:noescape -func atomicstore(ptr *uint32, val uint32) - -//go:noescape -func atomicstore64(ptr *uint64, val uint64) - -// Cannot use noescape here: ptr does not but val does escape. -// Instead use noescape(ptr) in wrapper below. -func atomicstorep1(ptr unsafe.Pointer, val unsafe.Pointer) - -//go:nosplit -func atomicstorep(ptr unsafe.Pointer, val unsafe.Pointer) { - atomicstorep1(noescape(ptr), val) - // TODO(rsc): Why does the compiler think writebarrierptr_nostore's dst argument escapes? - writebarrierptr_nostore((*uintptr)(noescape(ptr)), uintptr(val)) -} - -// Cannot use noescape here: ptr does not but new does escape. -// Instead use noescape(ptr) in wrapper below. -func casp1(ptr *unsafe.Pointer, old, new unsafe.Pointer) bool - -//go:nosplit -func casp(ptr *unsafe.Pointer, old, new unsafe.Pointer) bool { - ok := casp1((*unsafe.Pointer)(noescape(unsafe.Pointer(ptr))), old, new) - if !ok { - return false - } - writebarrierptr_nostore((*uintptr)(unsafe.Pointer(ptr)), uintptr(new)) - return true -} |