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runtime: merge all the linux 32 and 64 bits files into one for each

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Change-Id: I57067c9724dad2fba518b900d6f6a049cc32099e
Reviewed-on: https://go-review.googlesource.com/c/go/+/714081
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
This commit is contained in:
Jorropo 2025-10-23 10:54:00 +02:00
parent fb5156a098
commit ac3369242d
4 changed files with 38 additions and 54 deletions
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39
src/runtime/os_linux_settime32.go → src/runtime/os_linux32.go
View file

@ -6,9 +6,38 @@
package runtime
import "internal/runtime/atomic"
import (
"internal/runtime/atomic"
"unsafe"
)
var timer32bitOnly atomic.Bool
//go:noescape
func futex_time32(addr unsafe.Pointer, op int32, val uint32, ts *timespec32, addr2 unsafe.Pointer, val3 uint32) int32
//go:noescape
func futex_time64(addr unsafe.Pointer, op int32, val uint32, ts *timespec, addr2 unsafe.Pointer, val3 uint32) int32
var isFutexTime32bitOnly atomic.Bool
//go:nosplit
func futex(addr unsafe.Pointer, op int32, val uint32, ts *timespec, addr2 unsafe.Pointer, val3 uint32) int32 {
if !isFutexTime32bitOnly.Load() {
ret := futex_time64(addr, op, val, ts, addr2, val3)
// futex_time64 is only supported on Linux 5.0+
if ret != -_ENOSYS {
return ret
}
isFutexTime32bitOnly.Store(true)
}
// Downgrade ts.
var ts32 timespec32
var pts32 *timespec32
if ts != nil {
ts32.setNsec(ts.tv_sec*1e9 + ts.tv_nsec)
pts32 = &ts32
}
return futex_time32(addr, op, val, pts32, addr2, val3)
}
//go:noescape
func timer_settime32(timerid int32, flags int32, new, old *itimerspec32) int32
@ -16,15 +45,17 @@ func timer_settime32(timerid int32, flags int32, new, old *itimerspec32) int32
//go:noescape
func timer_settime64(timerid int32, flags int32, new, old *itimerspec) int32
var isSetTime32bitOnly atomic.Bool
//go:nosplit
func timer_settime(timerid int32, flags int32, new, old *itimerspec) int32 {
if !timer32bitOnly.Load() {
if !isSetTime32bitOnly.Load() {
ret := timer_settime64(timerid, flags, new, old)
// timer_settime64 is only supported on Linux 5.0+
if ret != -_ENOSYS {
return ret
}
timer32bitOnly.Store(true)
isSetTime32bitOnly.Store(true)
}
var newts, oldts itimerspec32

3
src/runtime/os_linux_futex64.go → src/runtime/os_linux64.go
View file

@ -12,3 +12,6 @@ import (
//go:noescape
func futex(addr unsafe.Pointer, op int32, val uint32, ts *timespec, addr2 unsafe.Pointer, val3 uint32) int32
//go:noescape
func timer_settime(timerid int32, flags int32, new, old *itimerspec) int32

40
src/runtime/os_linux_futex32.go
View file

@ -1,40 +0,0 @@
// Copyright 2025 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.
//go:build linux && (386 || arm || mips || mipsle || (gccgo && (ppc || s390)))
package runtime
import (
"internal/runtime/atomic"
"unsafe"
)
//go:noescape
func futex_time32(addr unsafe.Pointer, op int32, val uint32, ts *timespec32, addr2 unsafe.Pointer, val3 uint32) int32
//go:noescape
func futex_time64(addr unsafe.Pointer, op int32, val uint32, ts *timespec, addr2 unsafe.Pointer, val3 uint32) int32
var is32bitOnly atomic.Bool
//go:nosplit
func futex(addr unsafe.Pointer, op int32, val uint32, ts *timespec, addr2 unsafe.Pointer, val3 uint32) int32 {
if !is32bitOnly.Load() {
ret := futex_time64(addr, op, val, ts, addr2, val3)
// futex_time64 is only supported on Linux 5.0+
if ret != -_ENOSYS {
return ret
}
is32bitOnly.Store(true)
}
// Downgrade ts.
var ts32 timespec32
var pts32 *timespec32
if ts != nil {
ts32.setNsec(ts.tv_sec*1e9 + ts.tv_nsec)
pts32 = &ts32
}
return futex_time32(addr, op, val, pts32, addr2, val3)
}

10
src/runtime/os_linux_settime64.go
View file

@ -1,10 +0,0 @@
// Copyright 2025 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.
//go:build linux && !(386 || arm || mips || mipsle || (gccgo && (ppc || s390)))
package runtime
//go:noescape
func timer_settime(timerid int32, flags int32, new, old *itimerspec) int32