c2047754c3
Compiler changes:
* Change map assignment to use mapassign and assign value directly.
* Change string iteration to use decoderune, faster for ASCII strings.
* Change makeslice to take int, and use makeslice64 for larger values.
* Add new noverflow field to hmap struct used for maps.
Unresolved problems, to be fixed later:
* Commented out test in go/types/sizes_test.go that doesn't compile.
* Commented out reflect.TestStructOf test for padding after zero-sized field.
Reviewed-on: https://go-review.googlesource.com/35231
gotools/:
Updates for Go 1.8rc1.
* Makefile.am (go_cmd_go_files): Add bug.go.
(s-zdefaultcc): Write defaultPkgConfig.
* Makefile.in: Rebuild.
From-SVN: r244456
42 lines
1.5 KiB
Go
42 lines
1.5 KiB
Go
// Copyright 2016 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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// +build freebsd
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package os
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import (
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"runtime"
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"syscall"
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)
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const _P_PID = 0
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// blockUntilWaitable attempts to block until a call to p.Wait will
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// succeed immediately, and returns whether it has done so.
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// It does not actually call p.Wait.
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func (p *Process) blockUntilWaitable() (bool, error) {
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var errno syscall.Errno
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// The arguments on 32-bit FreeBSD look like the following:
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// - freebsd32_wait6_args{ idtype, id1, id2, status, options, wrusage, info } or
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// - freebsd32_wait6_args{ idtype, pad, id1, id2, status, options, wrusage, info } when PAD64_REQUIRED=1 on ARM, MIPS or PowerPC
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if runtime.GOARCH == "386" {
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_, _, errno = syscall.Syscall9(syscall.SYS_WAIT6, _P_PID, uintptr(p.Pid), 0, 0, syscall.WEXITED|syscall.WNOWAIT, 0, 0, 0, 0)
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} else if runtime.GOARCH == "arm" {
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_, _, errno = syscall.Syscall9(syscall.SYS_WAIT6, _P_PID, 0, uintptr(p.Pid), 0, 0, syscall.WEXITED|syscall.WNOWAIT, 0, 0, 0)
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} else {
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_, _, errno = syscall.Syscall6(syscall.SYS_WAIT6, _P_PID, uintptr(p.Pid), 0, syscall.WEXITED|syscall.WNOWAIT, 0, 0)
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}
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runtime.KeepAlive(p)
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if errno != 0 {
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// The wait6 system call is supported only on FreeBSD
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// 9.3 and above, so it may return an ENOSYS error.
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if errno == syscall.ENOSYS {
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return false, nil
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}
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return false, NewSyscallError("wait6", errno)
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}
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return true, nil
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}
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