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
64 lines
1.7 KiB
Go
64 lines
1.7 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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import (
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"runtime/internal/atomic"
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"unsafe"
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)
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// GOMAXPROCS sets the maximum number of CPUs that can be executing
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// simultaneously and returns the previous setting. If n < 1, it does not
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// change the current setting.
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// The number of logical CPUs on the local machine can be queried with NumCPU.
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// This call will go away when the scheduler improves.
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func GOMAXPROCS(n int) int {
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lock(&sched.lock)
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ret := int(gomaxprocs)
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unlock(&sched.lock)
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if n <= 0 || n == ret {
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return ret
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}
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stopTheWorld("GOMAXPROCS")
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// newprocs will be processed by startTheWorld
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newprocs = int32(n)
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startTheWorld()
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return ret
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}
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// NumCPU returns the number of logical CPUs usable by the current process.
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//
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// The set of available CPUs is checked by querying the operating system
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// at process startup. Changes to operating system CPU allocation after
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// process startup are not reflected.
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func NumCPU() int {
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return int(ncpu)
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}
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// NumCgoCall returns the number of cgo calls made by the current process.
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func NumCgoCall() int64 {
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var n int64
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for mp := (*m)(atomic.Loadp(unsafe.Pointer(&allm))); mp != nil; mp = mp.alllink {
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n += int64(mp.ncgocall)
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}
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return n
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}
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// NumGoroutine returns the number of goroutines that currently exist.
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func NumGoroutine() int {
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waitForSystemGoroutines()
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return int(gcount())
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}
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// Get field tracking information. Only fields with a tag go:"track"
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// are tracked. This function will add every such field that is
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// referenced to the map. The keys in the map will be
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// PkgPath.Name.FieldName. The value will be true for each field
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// added.
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func Fieldtrack(map[string]bool)
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