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| author | Cherry Zhang <cherryyz@google.com> | 2020-10-28 09:12:20 -0400 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2020-10-28 09:12:20 -0400 |
| commit | a16e30d162c1c7408db7821e7b9513cefa09c6ca (patch) | |
| tree | af752ba9ba44c547df39bb0af9bff79f610ba9d5 /src/runtime/internal/atomic/atomic_arm.go | |
| parent | 91e4d2d57bc341dd82c98247117114c851380aef (diff) | |
| parent | cf6cfba4d5358404dd890f6025e573a4b2156543 (diff) | |
| download | go-dev.link.tar.gz go-dev.link.zip | |
[dev.link] all: merge branch 'master' into dev.linkdev.link
Clean merge.
Change-Id: Ia7b2808bc649790198d34c226a61d9e569084dc5
Diffstat (limited to 'src/runtime/internal/atomic/atomic_arm.go')
| -rw-r--r-- | src/runtime/internal/atomic/atomic_arm.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/runtime/internal/atomic/atomic_arm.go b/src/runtime/internal/atomic/atomic_arm.go index 95713afcc1..546b3d6120 100644 --- a/src/runtime/internal/atomic/atomic_arm.go +++ b/src/runtime/internal/atomic/atomic_arm.go @@ -81,6 +81,9 @@ func Store(addr *uint32, v uint32) //go:noescape func StoreRel(addr *uint32, v uint32) +//go:noescape +func StoreReluintptr(addr *uintptr, v uintptr) + //go:nosplit func goCas64(addr *uint64, old, new uint64) bool { if uintptr(unsafe.Pointer(addr))&7 != 0 { @@ -180,6 +183,26 @@ func And8(addr *uint8, v uint8) { } //go:nosplit +func Or(addr *uint32, v uint32) { + for { + old := *addr + if Cas(addr, old, old|v) { + return + } + } +} + +//go:nosplit +func And(addr *uint32, v uint32) { + for { + old := *addr + if Cas(addr, old, old&v) { + return + } + } +} + +//go:nosplit func armcas(ptr *uint32, old, new uint32) bool //go:noescape @@ -195,6 +218,9 @@ func Load8(addr *uint8) uint8 func LoadAcq(addr *uint32) uint32 //go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + +//go:noescape func Cas64(addr *uint64, old, new uint64) bool //go:noescape |