1a2f01efa6
Update the Go library to the 1.10beta1 release.
Requires a few changes to the compiler for modifications to the map
runtime code, and to handle some nowritebarrier cases in the runtime.
Reviewed-on: https://go-review.googlesource.com/86455
gotools/:
* Makefile.am (go_cmd_vet_files): New variable.
(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
(s-zdefaultcc): Change from constants to functions.
(noinst_PROGRAMS): Add vet, buildid, and test2json.
(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
(vet$(EXEEXT)): New target.
(buildid$(EXEEXT)): New target.
(test2json$(EXEEXT)): New target.
(install-exec-local): Install all $(noinst_PROGRAMS).
(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
(check-go-tool): Depend on $(noinst_PROGRAMS). Copy down
objabi.go.
(check-runtime): Depend on $(noinst_PROGRAMS).
(check-cgo-test, check-carchive-test): Likewise.
(check-vet): New target.
(check): Depend on check-vet. Look at cmd_vet-testlog.
(.PHONY): Add check-vet.
* Makefile.in: Rebuild.
From-SVN: r256365
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// Copyright 2011 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 runtime
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
type mOS struct {
|
|
unused byte
|
|
}
|
|
|
|
//go:noescape
|
|
//extern _umtx_op
|
|
func sys_umtx_op(addr *uint32, mode int32, val uint32, uaddr1 uinptr, ts *umtx_time) int32
|
|
|
|
func getPageSize() uintptr {
|
|
mib := [2]uint32{_CTL_HW, _HW_PAGESIZE}
|
|
out := uint32(0)
|
|
nout := unsafe.Sizeof(out)
|
|
ret := sysctl(&mib[0], 2, (*byte)(unsafe.Pointer(&out)), &nout, nil, 0)
|
|
if ret >= 0 {
|
|
return uintptr(out)
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// FreeBSD's umtx_op syscall is effectively the same as Linux's futex, and
|
|
// thus the code is largely similar. See Linux implementation
|
|
// and lock_futex.go for comments.
|
|
|
|
//go:nosplit
|
|
func futexsleep(addr *uint32, val uint32, ns int64) {
|
|
systemstack(func() {
|
|
futexsleep1(addr, val, ns)
|
|
})
|
|
}
|
|
|
|
func futexsleep1(addr *uint32, val uint32, ns int64) {
|
|
var utp *umtx_time
|
|
if ns >= 0 {
|
|
var ut umtx_time
|
|
ut._clockid = _CLOCK_MONOTONIC
|
|
ut._timeout.set_sec(int64(timediv(ns, 1000000000, (*int32)(unsafe.Pointer(&ut._timeout.tv_nsec)))))
|
|
utp = &ut
|
|
}
|
|
ret := sys_umtx_op(addr, _UMTX_OP_WAIT_UINT_PRIVATE, val, unsafe.Sizeof(*utp), utp)
|
|
if ret >= 0 || ret == -_EINTR {
|
|
return
|
|
}
|
|
print("umtx_wait addr=", addr, " val=", val, " ret=", ret, "\n")
|
|
*(*int32)(unsafe.Pointer(uintptr(0x1005))) = 0x1005
|
|
}
|
|
|
|
//go:nosplit
|
|
func futexwakeup(addr *uint32, cnt uint32) {
|
|
ret := sys_umtx_op(addr, _UMTX_OP_WAKE_PRIVATE, cnt, 0, nil)
|
|
if ret >= 0 {
|
|
return
|
|
}
|
|
|
|
systemstack(func() {
|
|
print("umtx_wake_addr=", addr, " ret=", ret, "\n")
|
|
})
|
|
}
|