vendor: Run go mod vendor

vendor/github.com/creack/pty/run.go

@@ -11,6 +11,8 @@ import (
 // Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
 // and c.Stderr, calls c.Start, and returns the File of the tty's
 // corresponding pty.
+//
+// Starts the process in a new session and sets the controlling terminal.
 func Start(c *exec.Cmd) (pty *os.File, err error) {
 	return StartWithSize(c, nil)
 }
@@ -19,16 +21,35 @@ func Start(c *exec.Cmd) (pty *os.File, err error) {
 // and c.Stderr, calls c.Start, and returns the File of the tty's
 // corresponding pty.
 //
-// This will resize the pty to the specified size before starting the command
+// This will resize the pty to the specified size before starting the command.
+// Starts the process in a new session and sets the controlling terminal.
 func StartWithSize(c *exec.Cmd, sz *Winsize) (pty *os.File, err error) {
+	if c.SysProcAttr == nil {
+		c.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	c.SysProcAttr.Setsid = true
+	c.SysProcAttr.Setctty = true
+	return StartWithAttrs(c, sz, c.SysProcAttr)
+}
+
+// StartWithAttrs assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
+// and c.Stderr, calls c.Start, and returns the File of the tty's
+// corresponding pty.
+//
+// This will resize the pty to the specified size before starting the command if a size is provided.
+// The `attrs` parameter overrides the one set in c.SysProcAttr.
+//
+// This should generally not be needed. Used in some edge cases where it is needed to create a pty
+// without a controlling terminal.
+func StartWithAttrs(c *exec.Cmd, sz *Winsize, attrs *syscall.SysProcAttr) (pty *os.File, err error) {
 	pty, tty, err := Open()
 	if err != nil {
 		return nil, err
 	}
 	defer tty.Close()
+
 	if sz != nil {
-		err = Setsize(pty, sz)
+		if err := Setsize(pty, sz); err != nil {
-		if err != nil {
 			pty.Close()
 			return nil, err
 		}
@@ -42,15 +63,11 @@ func StartWithSize(c *exec.Cmd, sz *Winsize) (pty *os.File, err error) {
 	if c.Stdin == nil {
 		c.Stdin = tty
 	}
-	if c.SysProcAttr == nil {
+
-		c.SysProcAttr = &syscall.SysProcAttr{}
+	c.SysProcAttr = attrs
-	}
+
-	c.SysProcAttr.Setctty = true
+	if err := c.Start(); err != nil {
-	c.SysProcAttr.Setsid = true
+		_ = pty.Close()
-	c.SysProcAttr.Ctty = int(tty.Fd())
-	err = c.Start()
-	if err != nil {
-		pty.Close()
 		return nil, err
 	}
 	return pty, err

vendor/github.com/creack/pty/types.go

@@ -1,10 +0,0 @@
-// +build ignore
-
-package pty
-
-import "C"
-
-type (
-	_C_int  C.int
-	_C_uint C.uint
-)

vendor/github.com/creack/pty/types_dragonfly.go

@@ -1,17 +0,0 @@
-// +build ignore
-
-package pty
-
-/*
-#define _KERNEL
-#include <sys/conf.h>
-#include <sys/param.h>
-#include <sys/filio.h>
-*/
-import "C"
-
-const (
-	_C_SPECNAMELEN = C.SPECNAMELEN /* max length of devicename */
-)
-
-type fiodgnameArg C.struct_fiodname_args

vendor/github.com/creack/pty/types_freebsd.go

@@ -1,15 +0,0 @@
-// +build ignore
-
-package pty
-
-/*
-#include <sys/param.h>
-#include <sys/filio.h>
-*/
-import "C"
-
-const (
-	_C_SPECNAMELEN = C.SPECNAMELEN /* max length of devicename */
-)
-
-type fiodgnameArg C.struct_fiodgname_arg

vendor/github.com/creack/pty/types_openbsd.go

@@ -1,14 +0,0 @@
-// +build ignore
-
-package pty
-
-/*
-#include <sys/time.h>
-#include <stdlib.h>
-#include <sys/tty.h>
-*/
-import "C"
-
-type ptmget C.struct_ptmget
-
-var ioctl_PTMGET = C.PTMGET

vendor/github.com/creack/pty/ztypes_freebsd_arm64.go

@@ -0,0 +1,13 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs types_freebsd.go
+
+package pty
+
+const (
+	_C_SPECNAMELEN = 0xff
+)
+
+type fiodgnameArg struct {
+	Len int32
+	Buf *byte
+}

vendor/github.com/creack/pty/ztypes_openbsd_32bit_int.go

@@ -1,5 +1,5 @@
-// Created by cgo -godefs - DO NOT EDIT
+// +build openbsd
-// cgo -godefs types_openbsd.go
+// +build 386 amd64 arm arm64
 
 package pty
 

vendor/github.com/creack/pty/ztypes_openbsd_amd64.go

@@ -1,13 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_openbsd.go
-
-package pty
-
-type ptmget struct {
-	Cfd int32
-	Sfd int32
-	Cn  [16]int8
-	Sn  [16]int8
-}
-
-var ioctl_PTMGET = 0x40287401

vendor/github.com/google/btree/btree_mem.go

@@ -1,76 +0,0 @@
-// Copyright 2014 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// +build ignore
-
-// This binary compares memory usage between btree and gollrb.
-package main
-
-import (
-	"flag"
-	"fmt"
-	"math/rand"
-	"runtime"
-	"time"
-
-	"github.com/google/btree"
-	"github.com/petar/GoLLRB/llrb"
-)
-
-var (
-	size   = flag.Int("size", 1000000, "size of the tree to build")
-	degree = flag.Int("degree", 8, "degree of btree")
-	gollrb = flag.Bool("llrb", false, "use llrb instead of btree")
-)
-
-func main() {
-	flag.Parse()
-	vals := rand.Perm(*size)
-	var t, v interface{}
-	v = vals
-	var stats runtime.MemStats
-	for i := 0; i < 10; i++ {
-		runtime.GC()
-	}
-	fmt.Println("-------- BEFORE ----------")
-	runtime.ReadMemStats(&stats)
-	fmt.Printf("%+v\n", stats)
-	start := time.Now()
-	if *gollrb {
-		tr := llrb.New()
-		for _, v := range vals {
-			tr.ReplaceOrInsert(llrb.Int(v))
-		}
-		t = tr // keep it around
-	} else {
-		tr := btree.New(*degree)
-		for _, v := range vals {
-			tr.ReplaceOrInsert(btree.Int(v))
-		}
-		t = tr // keep it around
-	}
-	fmt.Printf("%v inserts in %v\n", *size, time.Since(start))
-	fmt.Println("-------- AFTER ----------")
-	runtime.ReadMemStats(&stats)
-	fmt.Printf("%+v\n", stats)
-	for i := 0; i < 10; i++ {
-		runtime.GC()
-	}
-	fmt.Println("-------- AFTER GC ----------")
-	runtime.ReadMemStats(&stats)
-	fmt.Printf("%+v\n", stats)
-	if t == v {
-		fmt.Println("to make sure vals and tree aren't GC'd")
-	}
-}

vendor/golang.org/x/net/http2/client_conn_pool.go

@@ -107,6 +107,7 @@ func (p *clientConnPool) getClientConn(req *http.Request, addr string, dialOnMis
 
 // dialCall is an in-flight Transport dial call to a host.
 type dialCall struct {
+	_    incomparable
 	p    *clientConnPool
 	done chan struct{} // closed when done
 	res  *ClientConn   // valid after done is closed
@@ -180,6 +181,7 @@ func (p *clientConnPool) addConnIfNeeded(key string, t *Transport, c *tls.Conn)
 }
 
 type addConnCall struct {
+	_    incomparable
 	p    *clientConnPool
 	done chan struct{} // closed when done
 	err  error
@@ -200,12 +202,6 @@ func (c *addConnCall) run(t *Transport, key string, tc *tls.Conn) {
 	close(c.done)
 }
 
-func (p *clientConnPool) addConn(key string, cc *ClientConn) {
-	p.mu.Lock()
-	p.addConnLocked(key, cc)
-	p.mu.Unlock()
-}
-
 // p.mu must be held
 func (p *clientConnPool) addConnLocked(key string, cc *ClientConn) {
 	for _, v := range p.conns[key] {

vendor/golang.org/x/net/http2/flow.go

@@ -8,6 +8,8 @@ package http2
 
 // flow is the flow control window's size.
 type flow struct {
+	_ incomparable
+
 	// n is the number of DATA bytes we're allowed to send.
 	// A flow is kept both on a conn and a per-stream.
 	n int32

vendor/golang.org/x/net/http2/hpack/encode.go

@@ -150,7 +150,7 @@ func appendIndexed(dst []byte, i uint64) []byte {
 // extended buffer.
 //
 // If f.Sensitive is true, "Never Indexed" representation is used. If
-// f.Sensitive is false and indexing is true, "Inremental Indexing"
+// f.Sensitive is false and indexing is true, "Incremental Indexing"
 // representation is used.
 func appendNewName(dst []byte, f HeaderField, indexing bool) []byte {
 	dst = append(dst, encodeTypeByte(indexing, f.Sensitive))

vendor/golang.org/x/net/http2/hpack/huffman.go

@@ -105,7 +105,14 @@ func huffmanDecode(buf *bytes.Buffer, maxLen int, v []byte) error {
 	return nil
 }
 
+// incomparable is a zero-width, non-comparable type. Adding it to a struct
+// makes that struct also non-comparable, and generally doesn't add
+// any size (as long as it's first).
+type incomparable [0]func()
+
 type node struct {
+	_ incomparable
+
 	// children is non-nil for internal nodes
 	children *[256]*node
 

vendor/golang.org/x/net/http2/http2.go

@@ -19,7 +19,6 @@ package http2 // import "golang.org/x/net/http2"
 import (
 	"bufio"
 	"crypto/tls"
-	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -173,11 +172,6 @@ func (s SettingID) String() string {
 	return fmt.Sprintf("UNKNOWN_SETTING_%d", uint16(s))
 }
 
-var (
-	errInvalidHeaderFieldName  = errors.New("http2: invalid header field name")
-	errInvalidHeaderFieldValue = errors.New("http2: invalid header field value")
-)
-
 // validWireHeaderFieldName reports whether v is a valid header field
 // name (key). See httpguts.ValidHeaderName for the base rules.
 //
@@ -247,6 +241,7 @@ func (cw closeWaiter) Wait() {
 // Its buffered writer is lazily allocated as needed, to minimize
 // idle memory usage with many connections.
 type bufferedWriter struct {
+	_  incomparable
 	w  io.Writer     // immutable
 	bw *bufio.Writer // non-nil when data is buffered
 }
@@ -319,6 +314,7 @@ func bodyAllowedForStatus(status int) bool {
 }
 
 type httpError struct {
+	_       incomparable
 	msg     string
 	timeout bool
 }
@@ -382,3 +378,8 @@ func (s *sorter) SortStrings(ss []string) {
 func validPseudoPath(v string) bool {
 	return (len(v) > 0 && v[0] == '/') || v == "*"
 }
+
+// incomparable is a zero-width, non-comparable type. Adding it to a struct
+// makes that struct also non-comparable, and generally doesn't add
+// any size (as long as it's first).
+type incomparable [0]func()

vendor/golang.org/x/net/http2/pipe.go

@@ -17,6 +17,7 @@ type pipe struct {
 	mu       sync.Mutex
 	c        sync.Cond     // c.L lazily initialized to &p.mu
 	b        pipeBuffer    // nil when done reading
+	unread   int           // bytes unread when done
 	err      error         // read error once empty. non-nil means closed.
 	breakErr error         // immediate read error (caller doesn't see rest of b)
 	donec    chan struct{} // closed on error
@@ -33,7 +34,7 @@ func (p *pipe) Len() int {
 	p.mu.Lock()
 	defer p.mu.Unlock()
 	if p.b == nil {
-		return 0
+		return p.unread
 	}
 	return p.b.Len()
 }
@@ -80,6 +81,7 @@ func (p *pipe) Write(d []byte) (n int, err error) {
 		return 0, errClosedPipeWrite
 	}
 	if p.breakErr != nil {
+		p.unread += len(d)
 		return len(d), nil // discard when there is no reader
 	}
 	return p.b.Write(d)
@@ -117,6 +119,9 @@ func (p *pipe) closeWithError(dst *error, err error, fn func()) {
 	}
 	p.readFn = fn
 	if dst == &p.breakErr {
+		if p.b != nil {
+			p.unread += p.b.Len()
+		}
 		p.b = nil
 	}
 	*dst = err

vendor/golang.org/x/net/http2/server.go

@@ -252,7 +252,7 @@ func ConfigureServer(s *http.Server, conf *Server) error {
 			}
 		}
 		if !haveRequired {
-			return fmt.Errorf("http2: TLSConfig.CipherSuites is missing an HTTP/2-required AES_128_GCM_SHA256 cipher.")
+			return fmt.Errorf("http2: TLSConfig.CipherSuites is missing an HTTP/2-required AES_128_GCM_SHA256 cipher (need at least one of TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 or TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256).")
 		}
 	}
 
@@ -322,7 +322,7 @@ type ServeConnOpts struct {
 }
 
 func (o *ServeConnOpts) context() context.Context {
-	if o.Context != nil {
+	if o != nil && o.Context != nil {
 		return o.Context
 	}
 	return context.Background()
@@ -581,13 +581,10 @@ type stream struct {
 	cancelCtx func()
 
 	// owned by serverConn's serve loop:
-	bodyBytes        int64   // body bytes seen so far
+	bodyBytes        int64 // body bytes seen so far
-	declBodyBytes    int64   // or -1 if undeclared
+	declBodyBytes    int64 // or -1 if undeclared
-	flow             flow    // limits writing from Handler to client
+	flow             flow  // limits writing from Handler to client
-	inflow           flow    // what the client is allowed to POST/etc to us
+	inflow           flow  // what the client is allowed to POST/etc to us
-	parent           *stream // or nil
-	numTrailerValues int64
-	weight           uint8
 	state            streamState
 	resetQueued      bool        // RST_STREAM queued for write; set by sc.resetStream
 	gotTrailerHeader bool        // HEADER frame for trailers was seen
@@ -764,6 +761,7 @@ func (sc *serverConn) readFrames() {
 
 // frameWriteResult is the message passed from writeFrameAsync to the serve goroutine.
 type frameWriteResult struct {
+	_   incomparable
 	wr  FrameWriteRequest // what was written (or attempted)
 	err error             // result of the writeFrame call
 }
@@ -774,7 +772,7 @@ type frameWriteResult struct {
 // serverConn.
 func (sc *serverConn) writeFrameAsync(wr FrameWriteRequest) {
 	err := wr.write.writeFrame(sc)
-	sc.wroteFrameCh <- frameWriteResult{wr, err}
+	sc.wroteFrameCh <- frameWriteResult{wr: wr, err: err}
 }
 
 func (sc *serverConn) closeAllStreamsOnConnClose() {
@@ -1164,7 +1162,7 @@ func (sc *serverConn) startFrameWrite(wr FrameWriteRequest) {
 	if wr.write.staysWithinBuffer(sc.bw.Available()) {
 		sc.writingFrameAsync = false
 		err := wr.write.writeFrame(sc)
-		sc.wroteFrame(frameWriteResult{wr, err})
+		sc.wroteFrame(frameWriteResult{wr: wr, err: err})
 	} else {
 		sc.writingFrameAsync = true
 		go sc.writeFrameAsync(wr)
@@ -1696,6 +1694,7 @@ func (sc *serverConn) processData(f *DataFrame) error {
 		if len(data) > 0 {
 			wrote, err := st.body.Write(data)
 			if err != nil {
+				sc.sendWindowUpdate(nil, int(f.Length)-wrote)
 				return streamError(id, ErrCodeStreamClosed)
 			}
 			if wrote != len(data) {
@@ -2022,7 +2021,11 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res
 	}
 	if bodyOpen {
 		if vv, ok := rp.header["Content-Length"]; ok {
-			req.ContentLength, _ = strconv.ParseInt(vv[0], 10, 64)
+			if cl, err := strconv.ParseUint(vv[0], 10, 63); err == nil {
+				req.ContentLength = int64(cl)
+			} else {
+				req.ContentLength = 0
+			}
 		} else {
 			req.ContentLength = -1
 		}
@@ -2060,7 +2063,7 @@ func (sc *serverConn) newWriterAndRequestNoBody(st *stream, rp requestParam) (*r
 	var trailer http.Header
 	for _, v := range rp.header["Trailer"] {
 		for _, key := range strings.Split(v, ",") {
-			key = http.CanonicalHeaderKey(strings.TrimSpace(key))
+			key = http.CanonicalHeaderKey(textproto.TrimString(key))
 			switch key {
 			case "Transfer-Encoding", "Trailer", "Content-Length":
 				// Bogus. (copy of http1 rules)
@@ -2278,6 +2281,7 @@ func (sc *serverConn) sendWindowUpdate32(st *stream, n int32) {
 // requestBody is the Handler's Request.Body type.
 // Read and Close may be called concurrently.
 type requestBody struct {
+	_             incomparable
 	stream        *stream
 	conn          *serverConn
 	closed        bool  // for use by Close only
@@ -2404,9 +2408,8 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
 		var ctype, clen string
 		if clen = rws.snapHeader.Get("Content-Length"); clen != "" {
 			rws.snapHeader.Del("Content-Length")
-			clen64, err := strconv.ParseInt(clen, 10, 64)
+			if cl, err := strconv.ParseUint(clen, 10, 63); err == nil {
-			if err == nil && clen64 >= 0 {
+				rws.sentContentLen = int64(cl)
-				rws.sentContentLen = clen64
 			} else {
 				clen = ""
 			}
@@ -2415,7 +2418,11 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
 			clen = strconv.Itoa(len(p))
 		}
 		_, hasContentType := rws.snapHeader["Content-Type"]
-		if !hasContentType && bodyAllowedForStatus(rws.status) && len(p) > 0 {
+		// If the Content-Encoding is non-blank, we shouldn't
+		// sniff the body. See Issue golang.org/issue/31753.
+		ce := rws.snapHeader.Get("Content-Encoding")
+		hasCE := len(ce) > 0
+		if !hasCE && !hasContentType && bodyAllowedForStatus(rws.status) && len(p) > 0 {
 			ctype = http.DetectContentType(p)
 		}
 		var date string
@@ -2524,7 +2531,7 @@ const TrailerPrefix = "Trailer:"
 // trailers. That worked for a while, until we found the first major
 // user of Trailers in the wild: gRPC (using them only over http2),
 // and gRPC libraries permit setting trailers mid-stream without
-// predeclarnig them. So: change of plans. We still permit the old
+// predeclaring them. So: change of plans. We still permit the old
 // way, but we also permit this hack: if a Header() key begins with
 // "Trailer:", the suffix of that key is a Trailer. Because ':' is an
 // invalid token byte anyway, there is no ambiguity. (And it's already
@@ -2824,7 +2831,7 @@ func (sc *serverConn) startPush(msg *startPushRequest) {
 	// PUSH_PROMISE frames MUST only be sent on a peer-initiated stream that
 	// is in either the "open" or "half-closed (remote)" state.
 	if msg.parent.state != stateOpen && msg.parent.state != stateHalfClosedRemote {
-		// responseWriter.Push checks that the stream is peer-initiaed.
+		// responseWriter.Push checks that the stream is peer-initiated.
 		msg.done <- errStreamClosed
 		return
 	}

vendor/golang.org/x/net/http2/transport.go

@@ -93,7 +93,7 @@ type Transport struct {
 	// send in the initial settings frame. It is how many bytes
 	// of response headers are allowed. Unlike the http2 spec, zero here
 	// means to use a default limit (currently 10MB). If you actually
-	// want to advertise an ulimited value to the peer, Transport
+	// want to advertise an unlimited value to the peer, Transport
 	// interprets the highest possible value here (0xffffffff or 1<<32-1)
 	// to mean no limit.
 	MaxHeaderListSize uint32
@@ -108,6 +108,19 @@ type Transport struct {
 	// waiting for their turn.
 	StrictMaxConcurrentStreams bool
 
+	// ReadIdleTimeout is the timeout after which a health check using ping
+	// frame will be carried out if no frame is received on the connection.
+	// Note that a ping response will is considered a received frame, so if
+	// there is no other traffic on the connection, the health check will
+	// be performed every ReadIdleTimeout interval.
+	// If zero, no health check is performed.
+	ReadIdleTimeout time.Duration
+
+	// PingTimeout is the timeout after which the connection will be closed
+	// if a response to Ping is not received.
+	// Defaults to 15s.
+	PingTimeout time.Duration
+
 	// t1, if non-nil, is the standard library Transport using
 	// this transport. Its settings are used (but not its
 	// RoundTrip method, etc).
@@ -131,6 +144,14 @@ func (t *Transport) disableCompression() bool {
 	return t.DisableCompression || (t.t1 != nil && t.t1.DisableCompression)
 }
 
+func (t *Transport) pingTimeout() time.Duration {
+	if t.PingTimeout == 0 {
+		return 15 * time.Second
+	}
+	return t.PingTimeout
+
+}
+
 // ConfigureTransport configures a net/http HTTP/1 Transport to use HTTP/2.
 // It returns an error if t1 has already been HTTP/2-enabled.
 func ConfigureTransport(t1 *http.Transport) error {
@@ -227,6 +248,7 @@ type ClientConn struct {
 	br              *bufio.Reader
 	fr              *Framer
 	lastActive      time.Time
+	lastIdle        time.Time // time last idle
 	// Settings from peer: (also guarded by mu)
 	maxFrameSize          uint32
 	maxConcurrentStreams  uint32
@@ -603,7 +625,7 @@ func (t *Transport) expectContinueTimeout() time.Duration {
 }
 
 func (t *Transport) NewClientConn(c net.Conn) (*ClientConn, error) {
-	return t.newClientConn(c, false)
+	return t.newClientConn(c, t.disableKeepAlives())
 }
 
 func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, error) {
@@ -667,6 +689,7 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro
 	cc.inflow.add(transportDefaultConnFlow + initialWindowSize)
 	cc.bw.Flush()
 	if cc.werr != nil {
+		cc.Close()
 		return nil, cc.werr
 	}
 
@@ -674,6 +697,20 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro
 	return cc, nil
 }
 
+func (cc *ClientConn) healthCheck() {
+	pingTimeout := cc.t.pingTimeout()
+	// We don't need to periodically ping in the health check, because the readLoop of ClientConn will
+	// trigger the healthCheck again if there is no frame received.
+	ctx, cancel := context.WithTimeout(context.Background(), pingTimeout)
+	defer cancel()
+	err := cc.Ping(ctx)
+	if err != nil {
+		cc.closeForLostPing()
+		cc.t.connPool().MarkDead(cc)
+		return
+	}
+}
+
 func (cc *ClientConn) setGoAway(f *GoAwayFrame) {
 	cc.mu.Lock()
 	defer cc.mu.Unlock()
@@ -736,7 +773,8 @@ func (cc *ClientConn) idleStateLocked() (st clientConnIdleState) {
 	}
 
 	st.canTakeNewRequest = cc.goAway == nil && !cc.closed && !cc.closing && maxConcurrentOkay &&
-		int64(cc.nextStreamID)+2*int64(cc.pendingRequests) < math.MaxInt32
+		int64(cc.nextStreamID)+2*int64(cc.pendingRequests) < math.MaxInt32 &&
+		!cc.tooIdleLocked()
 	st.freshConn = cc.nextStreamID == 1 && st.canTakeNewRequest
 	return
 }
@@ -746,6 +784,16 @@ func (cc *ClientConn) canTakeNewRequestLocked() bool {
 	return st.canTakeNewRequest
 }
 
+// tooIdleLocked reports whether this connection has been been sitting idle
+// for too much wall time.
+func (cc *ClientConn) tooIdleLocked() bool {
+	// The Round(0) strips the monontonic clock reading so the
+	// times are compared based on their wall time. We don't want
+	// to reuse a connection that's been sitting idle during
+	// VM/laptop suspend if monotonic time was also frozen.
+	return cc.idleTimeout != 0 && !cc.lastIdle.IsZero() && time.Since(cc.lastIdle.Round(0)) > cc.idleTimeout
+}
+
 // onIdleTimeout is called from a time.AfterFunc goroutine. It will
 // only be called when we're idle, but because we're coming from a new
 // goroutine, there could be a new request coming in at the same time,
@@ -834,14 +882,12 @@ func (cc *ClientConn) sendGoAway() error {
 	return nil
 }
 
-// Close closes the client connection immediately.
+// closes the client connection immediately. In-flight requests are interrupted.
-//
+// err is sent to streams.
-// In-flight requests are interrupted. For a graceful shutdown, use Shutdown instead.
+func (cc *ClientConn) closeForError(err error) error {
-func (cc *ClientConn) Close() error {
 	cc.mu.Lock()
 	defer cc.cond.Broadcast()
 	defer cc.mu.Unlock()
-	err := errors.New("http2: client connection force closed via ClientConn.Close")
 	for id, cs := range cc.streams {
 		select {
 		case cs.resc <- resAndError{err: err}:
@@ -854,6 +900,20 @@ func (cc *ClientConn) Close() error {
 	return cc.tconn.Close()
 }
 
+// Close closes the client connection immediately.
+//
+// In-flight requests are interrupted. For a graceful shutdown, use Shutdown instead.
+func (cc *ClientConn) Close() error {
+	err := errors.New("http2: client connection force closed via ClientConn.Close")
+	return cc.closeForError(err)
+}
+
+// closes the client connection immediately. In-flight requests are interrupted.
+func (cc *ClientConn) closeForLostPing() error {
+	err := errors.New("http2: client connection lost")
+	return cc.closeForError(err)
+}
+
 const maxAllocFrameSize = 512 << 10
 
 // frameBuffer returns a scratch buffer suitable for writing DATA frames.
@@ -904,7 +964,7 @@ func commaSeparatedTrailers(req *http.Request) (string, error) {
 		k = http.CanonicalHeaderKey(k)
 		switch k {
 		case "Transfer-Encoding", "Trailer", "Content-Length":
-			return "", &badStringError{"invalid Trailer key", k}
+			return "", fmt.Errorf("invalid Trailer key %q", k)
 		}
 		keys = append(keys, k)
 	}
@@ -1021,6 +1081,15 @@ func (cc *ClientConn) roundTrip(req *http.Request) (res *http.Response, gotErrAf
 	bodyWriter := cc.t.getBodyWriterState(cs, body)
 	cs.on100 = bodyWriter.on100
 
+	defer func() {
+		cc.wmu.Lock()
+		werr := cc.werr
+		cc.wmu.Unlock()
+		if werr != nil {
+			cc.Close()
+		}
+	}()
+
 	cc.wmu.Lock()
 	endStream := !hasBody && !hasTrailers
 	werr := cc.writeHeaders(cs.ID, endStream, int(cc.maxFrameSize), hdrs)
@@ -1150,6 +1219,7 @@ func (cc *ClientConn) awaitOpenSlotForRequest(req *http.Request) error {
 			}
 			return errClientConnUnusable
 		}
+		cc.lastIdle = time.Time{}
 		if int64(len(cc.streams))+1 <= int64(cc.maxConcurrentStreams) {
 			if waitingForConn != nil {
 				close(waitingForConn)
@@ -1216,6 +1286,8 @@ var (
 
 	// abort request body write, but send stream reset of cancel.
 	errStopReqBodyWriteAndCancel = errors.New("http2: canceling request")
+
+	errReqBodyTooLong = errors.New("http2: request body larger than specified content length")
 )
 
 func (cs *clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (err error) {
@@ -1238,10 +1310,32 @@ func (cs *clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (
 
 	req := cs.req
 	hasTrailers := req.Trailer != nil
+	remainLen := actualContentLength(req)
+	hasContentLen := remainLen != -1
 
 	var sawEOF bool
 	for !sawEOF {
-		n, err := body.Read(buf)
+		n, err := body.Read(buf[:len(buf)-1])
+		if hasContentLen {
+			remainLen -= int64(n)
+			if remainLen == 0 && err == nil {
+				// The request body's Content-Length was predeclared and
+				// we just finished reading it all, but the underlying io.Reader
+				// returned the final chunk with a nil error (which is one of
+				// the two valid things a Reader can do at EOF). Because we'd prefer
+				// to send the END_STREAM bit early, double-check that we're actually
+				// at EOF. Subsequent reads should return (0, EOF) at this point.
+				// If either value is different, we return an error in one of two ways below.
+				var n1 int
+				n1, err = body.Read(buf[n:])
+				remainLen -= int64(n1)
+			}
+			if remainLen < 0 {
+				err = errReqBodyTooLong
+				cc.writeStreamReset(cs.ID, ErrCodeCancel, err)
+				return err
+			}
+		}
 		if err == io.EOF {
 			sawEOF = true
 			err = nil
@@ -1357,13 +1451,6 @@ func (cs *clientStream) awaitFlowControl(maxBytes int) (taken int32, err error)
 	}
 }
 
-type badStringError struct {
-	what string
-	str  string
-}
-
-func (e *badStringError) Error() string { return fmt.Sprintf("%s %q", e.what, e.str) }
-
 // requires cc.mu be held.
 func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trailers string, contentLength int64) ([]byte, error) {
 	cc.hbuf.Reset()
@@ -1454,7 +1541,29 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
 				if vv[0] == "" {
 					continue
 				}
-
+			} else if strings.EqualFold(k, "cookie") {
+				// Per 8.1.2.5 To allow for better compression efficiency, the
+				// Cookie header field MAY be split into separate header fields,
+				// each with one or more cookie-pairs.
+				for _, v := range vv {
+					for {
+						p := strings.IndexByte(v, ';')
+						if p < 0 {
+							break
+						}
+						f("cookie", v[:p])
+						p++
+						// strip space after semicolon if any.
+						for p+1 <= len(v) && v[p] == ' ' {
+							p++
+						}
+						v = v[p:]
+					}
+					if len(v) > 0 {
+						f("cookie", v)
+					}
+				}
+				continue
 			}
 
 			for _, v := range vv {
@@ -1557,6 +1666,7 @@ func (cc *ClientConn) writeHeader(name, value string) {
 }
 
 type resAndError struct {
+	_   incomparable
 	res *http.Response
 	err error
 }
@@ -1592,6 +1702,7 @@ func (cc *ClientConn) streamByID(id uint32, andRemove bool) *clientStream {
 		delete(cc.streams, id)
 		if len(cc.streams) == 0 && cc.idleTimer != nil {
 			cc.idleTimer.Reset(cc.idleTimeout)
+			cc.lastIdle = time.Now()
 		}
 		close(cs.done)
 		// Wake up checkResetOrDone via clientStream.awaitFlowControl and
@@ -1603,6 +1714,7 @@ func (cc *ClientConn) streamByID(id uint32, andRemove bool) *clientStream {
 
 // clientConnReadLoop is the state owned by the clientConn's frame-reading readLoop.
 type clientConnReadLoop struct {
+	_             incomparable
 	cc            *ClientConn
 	closeWhenIdle bool
 }
@@ -1682,8 +1794,17 @@ func (rl *clientConnReadLoop) run() error {
 	rl.closeWhenIdle = cc.t.disableKeepAlives() || cc.singleUse
 	gotReply := false // ever saw a HEADERS reply
 	gotSettings := false
+	readIdleTimeout := cc.t.ReadIdleTimeout
+	var t *time.Timer
+	if readIdleTimeout != 0 {
+		t = time.AfterFunc(readIdleTimeout, cc.healthCheck)
+		defer t.Stop()
+	}
 	for {
 		f, err := cc.fr.ReadFrame()
+		if t != nil {
+			t.Reset(readIdleTimeout)
+		}
 		if err != nil {
 			cc.vlogf("http2: Transport readFrame error on conn %p: (%T) %v", cc, err, err)
 		}
@@ -1832,7 +1953,9 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra
 		return nil, errors.New("malformed response from server: malformed non-numeric status pseudo header")
 	}
 
-	header := make(http.Header)
+	regularFields := f.RegularFields()
+	strs := make([]string, len(regularFields))
+	header := make(http.Header, len(regularFields))
 	res := &http.Response{
 		Proto:      "HTTP/2.0",
 		ProtoMajor: 2,
@@ -1840,7 +1963,7 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra
 		StatusCode: statusCode,
 		Status:     status + " " + http.StatusText(statusCode),
 	}
-	for _, hf := range f.RegularFields() {
+	for _, hf := range regularFields {
 		key := http.CanonicalHeaderKey(hf.Name)
 		if key == "Trailer" {
 			t := res.Trailer
@@ -1852,7 +1975,18 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra
 				t[http.CanonicalHeaderKey(v)] = nil
 			})
 		} else {
-			header[key] = append(header[key], hf.Value)
+			vv := header[key]
+			if vv == nil && len(strs) > 0 {
+				// More than likely this will be a single-element key.
+				// Most headers aren't multi-valued.
+				// Set the capacity on strs[0] to 1, so any future append
+				// won't extend the slice into the other strings.
+				vv, strs = strs[:1:1], strs[1:]
+				vv[0] = hf.Value
+				header[key] = vv
+			} else {
+				header[key] = append(vv, hf.Value)
+			}
 		}
 	}
 
@@ -1882,8 +2016,8 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra
 	if !streamEnded || isHead {
 		res.ContentLength = -1
 		if clens := res.Header["Content-Length"]; len(clens) == 1 {
-			if clen64, err := strconv.ParseInt(clens[0], 10, 64); err == nil {
+			if cl, err := strconv.ParseUint(clens[0], 10, 63); err == nil {
-				res.ContentLength = clen64
+				res.ContentLength = int64(cl)
 			} else {
 				// TODO: care? unlike http/1, it won't mess up our framing, so it's
 				// more safe smuggling-wise to ignore.
@@ -2138,8 +2272,6 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error {
 	return nil
 }
 
-var errInvalidTrailers = errors.New("http2: invalid trailers")
-
 func (rl *clientConnReadLoop) endStream(cs *clientStream) {
 	// TODO: check that any declared content-length matches, like
 	// server.go's (*stream).endStream method.
@@ -2370,7 +2502,6 @@ func (cc *ClientConn) writeStreamReset(streamID uint32, code ErrCode, err error)
 var (
 	errResponseHeaderListSize = errors.New("http2: response header list larger than advertised limit")
 	errRequestHeaderListSize  = errors.New("http2: request header list larger than peer's advertised limit")
-	errPseudoTrailers         = errors.New("http2: invalid pseudo header in trailers")
 )
 
 func (cc *ClientConn) logf(format string, args ...interface{}) {
@@ -2404,11 +2535,13 @@ func strSliceContains(ss []string, s string) bool {
 
 type erringRoundTripper struct{ err error }
 
+func (rt erringRoundTripper) RoundTripErr() error                             { return rt.err }
 func (rt erringRoundTripper) RoundTrip(*http.Request) (*http.Response, error) { return nil, rt.err }
 
 // gzipReader wraps a response body so it can lazily
 // call gzip.NewReader on the first call to Read
 type gzipReader struct {
+	_    incomparable
 	body io.ReadCloser // underlying Response.Body
 	zr   *gzip.Reader  // lazily-initialized gzip reader
 	zerr error         // sticky error

vendor/golang.org/x/net/http2/writesched_priority.go

@@ -149,7 +149,7 @@ func (n *priorityNode) addBytes(b int64) {
 }
 
 // walkReadyInOrder iterates over the tree in priority order, calling f for each node
-// with a non-empty write queue. When f returns true, this funcion returns true and the
+// with a non-empty write queue. When f returns true, this function returns true and the
 // walk halts. tmp is used as scratch space for sorting.
 //
 // f(n, openParent) takes two arguments: the node to visit, n, and a bool that is true

vendor/golang.org/x/net/http2/writesched_random.go

@@ -19,7 +19,8 @@ type randomWriteScheduler struct {
 	zero writeQueue
 
 	// sq contains the stream-specific queues, keyed by stream ID.
-	// When a stream is idle or closed, it's deleted from the map.
+	// When a stream is idle, closed, or emptied, it's deleted
+	// from the map.
 	sq map[uint32]*writeQueue
 
 	// pool of empty queues for reuse.
@@ -63,8 +64,12 @@ func (ws *randomWriteScheduler) Pop() (FrameWriteRequest, bool) {
 		return ws.zero.shift(), true
 	}
 	// Iterate over all non-idle streams until finding one that can be consumed.
-	for _, q := range ws.sq {
+	for streamID, q := range ws.sq {
 		if wr, ok := q.consume(math.MaxInt32); ok {
+			if q.empty() {
+				delete(ws.sq, streamID)
+				ws.queuePool.put(q)
+			}
 			return wr, true
 		}
 	}

vendor/golang.org/x/net/idna/tables11.0.0.go

@@ -1,6 +1,6 @@
 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
 
-// +build go1.13
+// +build go1.13,!go1.14
 
 package idna
 

vendor/golang.org/x/net/internal/timeseries/timeseries.go

@@ -403,9 +403,9 @@ func (ts *timeSeries) extract(l *tsLevel, start, finish time.Time, num int, resu
 
 	// Where should scanning start?
 	if dstStart.After(srcStart) {
-		advance := dstStart.Sub(srcStart) / srcInterval
+		advance := int(dstStart.Sub(srcStart) / srcInterval)
-		srcIndex += int(advance)
+		srcIndex += advance
-		srcStart = srcStart.Add(advance * srcInterval)
+		srcStart = srcStart.Add(time.Duration(advance) * srcInterval)
 	}
 
 	// The i'th value is computed as show below.

vendor/golang.org/x/sys/internal/unsafeheader/unsafeheader.go

@@ -0,0 +1,30 @@
+// Copyright 2020 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 unsafeheader contains header declarations for the Go runtime's
+// slice and string implementations.
+//
+// This package allows x/sys to use types equivalent to
+// reflect.SliceHeader and reflect.StringHeader without introducing
+// a dependency on the (relatively heavy) "reflect" package.
+package unsafeheader
+
+import (
+	"unsafe"
+)
+
+// Slice is the runtime representation of a slice.
+// It cannot be used safely or portably and its representation may change in a later release.
+type Slice struct {
+	Data unsafe.Pointer
+	Len  int
+	Cap  int
+}
+
+// String is the runtime representation of a string.
+// It cannot be used safely or portably and its representation may change in a later release.
+type String struct {
+	Data unsafe.Pointer
+	Len  int
+}

vendor/golang.org/x/sys/unix/affinity_linux.go

@@ -7,6 +7,7 @@
 package unix
 
 import (
+	"math/bits"
 	"unsafe"
 )
 
@@ -79,50 +80,7 @@ func (s *CPUSet) IsSet(cpu int) bool {
 func (s *CPUSet) Count() int {
 	c := 0
 	for _, b := range s {
-		c += onesCount64(uint64(b))
+		c += bits.OnesCount64(uint64(b))
 	}
 	return c
 }
-
-// onesCount64 is a copy of Go 1.9's math/bits.OnesCount64.
-// Once this package can require Go 1.9, we can delete this
-// and update the caller to use bits.OnesCount64.
-func onesCount64(x uint64) int {
-	const m0 = 0x5555555555555555 // 01010101 ...
-	const m1 = 0x3333333333333333 // 00110011 ...
-	const m2 = 0x0f0f0f0f0f0f0f0f // 00001111 ...
-
-	// Unused in this function, but definitions preserved for
-	// documentation purposes:
-	//
-	//   const m3 = 0x00ff00ff00ff00ff // etc.
-	//   const m4 = 0x0000ffff0000ffff
-	//
-	// Implementation: Parallel summing of adjacent bits.
-	// See "Hacker's Delight", Chap. 5: Counting Bits.
-	// The following pattern shows the general approach:
-	//
-	//   x = x>>1&(m0&m) + x&(m0&m)
-	//   x = x>>2&(m1&m) + x&(m1&m)
-	//   x = x>>4&(m2&m) + x&(m2&m)
-	//   x = x>>8&(m3&m) + x&(m3&m)
-	//   x = x>>16&(m4&m) + x&(m4&m)
-	//   x = x>>32&(m5&m) + x&(m5&m)
-	//   return int(x)
-	//
-	// Masking (& operations) can be left away when there's no
-	// danger that a field's sum will carry over into the next
-	// field: Since the result cannot be > 64, 8 bits is enough
-	// and we can ignore the masks for the shifts by 8 and up.
-	// Per "Hacker's Delight", the first line can be simplified
-	// more, but it saves at best one instruction, so we leave
-	// it alone for clarity.
-	const m = 1<<64 - 1
-	x = x>>1&(m0&m) + x&(m0&m)
-	x = x>>2&(m1&m) + x&(m1&m)
-	x = (x>>4 + x) & (m2 & m)
-	x += x >> 8
-	x += x >> 16
-	x += x >> 32
-	return int(x) & (1<<7 - 1)
-}

vendor/golang.org/x/sys/unix/asm_aix_ppc64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_darwin_386.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_darwin_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_darwin_arm.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 // +build arm,darwin
 
 #include "textflag.h"

vendor/golang.org/x/sys/unix/asm_darwin_arm64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 // +build arm64,darwin
 
 #include "textflag.h"

vendor/golang.org/x/sys/unix/asm_dragonfly_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_freebsd_386.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_freebsd_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_freebsd_arm.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_freebsd_arm64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_386.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_arm.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_arm64.s

@@ -4,7 +4,7 @@
 
 // +build linux
 // +build arm64
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_mips64x.s

@@ -4,7 +4,7 @@
 
 // +build linux
 // +build mips64 mips64le
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_mipsx.s

@@ -4,7 +4,7 @@
 
 // +build linux
 // +build mips mipsle
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s

@@ -4,7 +4,7 @@
 
 // +build linux
 // +build ppc64 ppc64le
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_riscv64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build riscv64,!gccgo
+// +build riscv64,gc
 
 #include "textflag.h"
 
@@ -23,10 +23,6 @@ TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
 	MOV	a1+8(FP), A0
 	MOV	a2+16(FP), A1
 	MOV	a3+24(FP), A2
-	MOV	$0, A3
-	MOV	$0, A4
-	MOV	$0, A5
-	MOV	$0, A6
 	MOV	trap+0(FP), A7	// syscall entry
 	ECALL
 	MOV	A0, r1+32(FP)	// r1
@@ -44,9 +40,6 @@ TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
 	MOV	a1+8(FP), A0
 	MOV	a2+16(FP), A1
 	MOV	a3+24(FP), A2
-	MOV	ZERO, A3
-	MOV	ZERO, A4
-	MOV	ZERO, A5
 	MOV	trap+0(FP), A7	// syscall entry
 	ECALL
 	MOV	A0, r1+32(FP)

vendor/golang.org/x/sys/unix/asm_linux_s390x.s

@@ -4,7 +4,7 @@
 
 // +build s390x
 // +build linux
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_netbsd_386.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_netbsd_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_netbsd_arm.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_netbsd_arm64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_openbsd_386.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_openbsd_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_openbsd_arm.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_openbsd_arm64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_openbsd_mips64.s

@@ -0,0 +1,29 @@
+// Copyright 2019 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.
+
+// +build gc
+
+#include "textflag.h"
+
+//
+// System call support for mips64, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_solaris_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo
+// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/bluetooth_linux.go

@@ -23,6 +23,7 @@ const (
 	HCI_CHANNEL_USER    = 1
 	HCI_CHANNEL_MONITOR = 2
 	HCI_CHANNEL_CONTROL = 3
+	HCI_CHANNEL_LOGGING = 4
 )
 
 // Socketoption Level

vendor/golang.org/x/sys/unix/endian_big.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 //
-// +build ppc64 s390x mips mips64
+// +build armbe arm64be m68k mips mips64 mips64p32 ppc ppc64 s390 s390x shbe sparc sparc64
 
 package unix
 

vendor/golang.org/x/sys/unix/endian_little.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 //
-// +build 386 amd64 amd64p32 arm arm64 ppc64le mipsle mips64le riscv64
+// +build 386 amd64 amd64p32 alpha arm arm64 mipsle mips64le mips64p32le nios2 ppc64le riscv riscv64 sh
 
 package unix
 

vendor/golang.org/x/sys/unix/errors_freebsd_386.go

@@ -8,6 +8,7 @@
 package unix
 
 const (
+	DLT_HHDLC                         = 0x79
 	IFF_SMART                         = 0x20
 	IFT_1822                          = 0x2
 	IFT_A12MPPSWITCH                  = 0x82
@@ -210,13 +211,18 @@ const (
 	IFT_XETHER                        = 0x1a
 	IPPROTO_MAXID                     = 0x34
 	IPV6_FAITH                        = 0x1d
+	IPV6_MIN_MEMBERSHIPS              = 0x1f
 	IP_FAITH                          = 0x16
+	IP_MAX_SOURCE_FILTER              = 0x400
+	IP_MIN_MEMBERSHIPS                = 0x1f
 	MAP_NORESERVE                     = 0x40
 	MAP_RENAME                        = 0x20
 	NET_RT_MAXID                      = 0x6
 	RTF_PRCLONING                     = 0x10000
 	RTM_OLDADD                        = 0x9
 	RTM_OLDDEL                        = 0xa
+	RT_CACHING_CONTEXT                = 0x1
+	RT_NORTREF                        = 0x2
 	SIOCADDRT                         = 0x8030720a
 	SIOCALIFADDR                      = 0x8118691b
 	SIOCDELRT                         = 0x8030720b

vendor/golang.org/x/sys/unix/errors_freebsd_amd64.go

@@ -8,6 +8,7 @@
 package unix
 
 const (
+	DLT_HHDLC                         = 0x79
 	IFF_SMART                         = 0x20
 	IFT_1822                          = 0x2
 	IFT_A12MPPSWITCH                  = 0x82
@@ -210,13 +211,18 @@ const (
 	IFT_XETHER                        = 0x1a
 	IPPROTO_MAXID                     = 0x34
 	IPV6_FAITH                        = 0x1d
+	IPV6_MIN_MEMBERSHIPS              = 0x1f
 	IP_FAITH                          = 0x16
+	IP_MAX_SOURCE_FILTER              = 0x400
+	IP_MIN_MEMBERSHIPS                = 0x1f
 	MAP_NORESERVE                     = 0x40
 	MAP_RENAME                        = 0x20
 	NET_RT_MAXID                      = 0x6
 	RTF_PRCLONING                     = 0x10000
 	RTM_OLDADD                        = 0x9
 	RTM_OLDDEL                        = 0xa
+	RT_CACHING_CONTEXT                = 0x1
+	RT_NORTREF                        = 0x2
 	SIOCADDRT                         = 0x8040720a
 	SIOCALIFADDR                      = 0x8118691b
 	SIOCDELRT                         = 0x8040720b

vendor/golang.org/x/sys/unix/errors_freebsd_arm64.go

@@ -0,0 +1,17 @@
+// Copyright 2020 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.
+
+// Constants that were deprecated or moved to enums in the FreeBSD headers. Keep
+// them here for backwards compatibility.
+
+package unix
+
+const (
+	DLT_HHDLC            = 0x79
+	IPV6_MIN_MEMBERSHIPS = 0x1f
+	IP_MAX_SOURCE_FILTER = 0x400
+	IP_MIN_MEMBERSHIPS   = 0x1f
+	RT_CACHING_CONTEXT   = 0x1
+	RT_NORTREF           = 0x2
+)

vendor/golang.org/x/sys/unix/fcntl.go

@@ -9,12 +9,11 @@ package unix
 import "unsafe"
 
 // fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
-// systems by flock_linux_32bit.go to be SYS_FCNTL64.
+// systems by fcntl_linux_32bit.go to be SYS_FCNTL64.
 var fcntl64Syscall uintptr = SYS_FCNTL
 
-// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func fcntl(fd int, cmd, arg int) (int, error) {
-func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	valptr, _, errno := Syscall(fcntl64Syscall, uintptr(fd), uintptr(cmd), uintptr(arg))
-	valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
 	var err error
 	if errno != 0 {
 		err = errno
@@ -22,6 +21,11 @@ func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
 	return int(valptr), err
 }
 
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	return fcntl(int(fd), cmd, arg)
+}
+
 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
 	_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))

vendor/golang.org/x/sys/unix/fcntl_darwin.go

@@ -16,3 +16,9 @@ func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
 	_, err := fcntl(int(fd), cmd, int(uintptr(unsafe.Pointer(lk))))
 	return err
 }
+
+// FcntlFstore performs a fcntl syscall for the F_PREALLOCATE command.
+func FcntlFstore(fd uintptr, cmd int, fstore *Fstore_t) error {
+	_, err := fcntl(int(fd), cmd, int(uintptr(unsafe.Pointer(fstore))))
+	return err
+}

vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go

@@ -1,9 +1,9 @@
-// +build linux,386 linux,arm linux,mips linux,mipsle
-
 // Copyright 2014 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.
 
+// +build linux,386 linux,arm linux,mips linux,mipsle
+
 package unix
 
 func init() {

vendor/golang.org/x/sys/unix/fdset.go

@@ -0,0 +1,29 @@
+// Copyright 2019 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.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+// Set adds fd to the set fds.
+func (fds *FdSet) Set(fd int) {
+	fds.Bits[fd/NFDBITS] |= (1 << (uintptr(fd) % NFDBITS))
+}
+
+// Clear removes fd from the set fds.
+func (fds *FdSet) Clear(fd int) {
+	fds.Bits[fd/NFDBITS] &^= (1 << (uintptr(fd) % NFDBITS))
+}
+
+// IsSet returns whether fd is in the set fds.
+func (fds *FdSet) IsSet(fd int) bool {
+	return fds.Bits[fd/NFDBITS]&(1<<(uintptr(fd)%NFDBITS)) != 0
+}
+
+// Zero clears the set fds.
+func (fds *FdSet) Zero() {
+	for i := range fds.Bits {
+		fds.Bits[i] = 0
+	}
+}

vendor/golang.org/x/sys/unix/gccgo.go

@@ -12,10 +12,8 @@ import "syscall"
 // We can't use the gc-syntax .s files for gccgo. On the plus side
 // much of the functionality can be written directly in Go.
 
-//extern gccgoRealSyscallNoError
 func realSyscallNoError(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r uintptr)
 
-//extern gccgoRealSyscall
 func realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r, errno uintptr)
 
 func SyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {

vendor/golang.org/x/sys/unix/gccgo_c.c

@@ -21,6 +21,9 @@ struct ret {
 	uintptr_t err;
 };
 
+struct ret gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
+  __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
+
 struct ret
 gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
 {
@@ -32,6 +35,9 @@ gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintp
 	return r;
 }
 
+uintptr_t gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
+  __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
+
 uintptr_t
 gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
 {

vendor/golang.org/x/sys/unix/ioctl.go

@@ -6,7 +6,28 @@
 
 package unix
 
-import "runtime"
+import (
+	"runtime"
+	"unsafe"
+)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+	return ioctl(fd, req, uintptr(value))
+}
+
+// IoctlSetPointerInt performs an ioctl operation which sets an
+// integer value on fd, using the specified request number. The ioctl
+// argument is called with a pointer to the integer value, rather than
+// passing the integer value directly.
+func IoctlSetPointerInt(fd int, req uint, value int) error {
+	v := int32(value)
+	return ioctl(fd, req, uintptr(unsafe.Pointer(&v)))
+}
 
 // IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
 //
@@ -14,7 +35,7 @@ import "runtime"
 func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
 	// TODO: if we get the chance, remove the req parameter and
 	// hardcode TIOCSWINSZ.
-	err := ioctlSetWinsize(fd, req, value)
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
 	runtime.KeepAlive(value)
 	return err
 }
@@ -24,7 +45,30 @@ func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
 // The req value will usually be TCSETA or TIOCSETA.
 func IoctlSetTermios(fd int, req uint, value *Termios) error {
 	// TODO: if we get the chance, remove the req parameter.
-	err := ioctlSetTermios(fd, req, value)
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
 	runtime.KeepAlive(value)
 	return err
 }
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+//
+// A few ioctl requests use the return value as an output parameter;
+// for those, IoctlRetInt should be used instead of this function.
+func IoctlGetInt(fd int, req uint) (int, error) {
+	var value int
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+	var value Winsize
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+	var value Termios
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}

vendor/golang.org/x/sys/unix/mkasm_darwin.go

@@ -1,61 +0,0 @@
-// Copyright 2018 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.
-
-// +build ignore
-
-// mkasm_darwin.go generates assembly trampolines to call libSystem routines from Go.
-//This program must be run after mksyscall.go.
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"strings"
-)
-
-func main() {
-	in1, err := ioutil.ReadFile("syscall_darwin.go")
-	if err != nil {
-		log.Fatalf("can't open syscall_darwin.go: %s", err)
-	}
-	arch := os.Args[1]
-	in2, err := ioutil.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch))
-	if err != nil {
-		log.Fatalf("can't open syscall_darwin_%s.go: %s", arch, err)
-	}
-	in3, err := ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch))
-	if err != nil {
-		log.Fatalf("can't open zsyscall_darwin_%s.go: %s", arch, err)
-	}
-	in := string(in1) + string(in2) + string(in3)
-
-	trampolines := map[string]bool{}
-
-	var out bytes.Buffer
-
-	fmt.Fprintf(&out, "// go run mkasm_darwin.go %s\n", strings.Join(os.Args[1:], " "))
-	fmt.Fprintf(&out, "// Code generated by the command above; DO NOT EDIT.\n")
-	fmt.Fprintf(&out, "\n")
-	fmt.Fprintf(&out, "// +build go1.12\n")
-	fmt.Fprintf(&out, "\n")
-	fmt.Fprintf(&out, "#include \"textflag.h\"\n")
-	for _, line := range strings.Split(in, "\n") {
-		if !strings.HasPrefix(line, "func ") || !strings.HasSuffix(line, "_trampoline()") {
-			continue
-		}
-		fn := line[5 : len(line)-13]
-		if !trampolines[fn] {
-			trampolines[fn] = true
-			fmt.Fprintf(&out, "TEXT ·%s_trampoline(SB),NOSPLIT,$0-0\n", fn)
-			fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn)
-		}
-	}
-	err = ioutil.WriteFile(fmt.Sprintf("zsyscall_darwin_%s.s", arch), out.Bytes(), 0644)
-	if err != nil {
-		log.Fatalf("can't write zsyscall_darwin_%s.s: %s", arch, err)
-	}
-}

vendor/golang.org/x/sys/unix/mkpost.go

@@ -1,122 +0,0 @@
-// Copyright 2016 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.
-
-// +build ignore
-
-// mkpost processes the output of cgo -godefs to
-// modify the generated types. It is used to clean up
-// the sys API in an architecture specific manner.
-//
-// mkpost is run after cgo -godefs; see README.md.
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"go/format"
-	"io/ioutil"
-	"log"
-	"os"
-	"regexp"
-)
-
-func main() {
-	// Get the OS and architecture (using GOARCH_TARGET if it exists)
-	goos := os.Getenv("GOOS")
-	goarch := os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check that we are using the Docker-based build system if we should be.
-	if goos == "linux" {
-		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
-			os.Stderr.WriteString("In the Docker-based build system, mkpost should not be called directly.\n")
-			os.Stderr.WriteString("See README.md\n")
-			os.Exit(1)
-		}
-	}
-
-	b, err := ioutil.ReadAll(os.Stdin)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	if goos == "aix" {
-		// Replace type of Atim, Mtim and Ctim by Timespec in Stat_t
-		// to avoid having both StTimespec and Timespec.
-		sttimespec := regexp.MustCompile(`_Ctype_struct_st_timespec`)
-		b = sttimespec.ReplaceAll(b, []byte("Timespec"))
-	}
-
-	// Intentionally export __val fields in Fsid and Sigset_t
-	valRegex := regexp.MustCompile(`type (Fsid|Sigset_t) struct {(\s+)X__(bits|val)(\s+\S+\s+)}`)
-	b = valRegex.ReplaceAll(b, []byte("type $1 struct {${2}Val$4}"))
-
-	// Intentionally export __fds_bits field in FdSet
-	fdSetRegex := regexp.MustCompile(`type (FdSet) struct {(\s+)X__fds_bits(\s+\S+\s+)}`)
-	b = fdSetRegex.ReplaceAll(b, []byte("type $1 struct {${2}Bits$3}"))
-
-	// If we have empty Ptrace structs, we should delete them. Only s390x emits
-	// nonempty Ptrace structs.
-	ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`)
-	b = ptraceRexexp.ReplaceAll(b, nil)
-
-	// Replace the control_regs union with a blank identifier for now.
-	controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`)
-	b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64"))
-
-	// Remove fields that are added by glibc
-	// Note that this is unstable as the identifers are private.
-	removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`)
-	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Convert [65]int8 to [65]byte in Utsname members to simplify
-	// conversion to string; see golang.org/issue/20753
-	convertUtsnameRegex := regexp.MustCompile(`((Sys|Node|Domain)name|Release|Version|Machine)(\s+)\[(\d+)\]u?int8`)
-	b = convertUtsnameRegex.ReplaceAll(b, []byte("$1$3[$4]byte"))
-
-	// Convert [1024]int8 to [1024]byte in Ptmget members
-	convertPtmget := regexp.MustCompile(`([SC]n)(\s+)\[(\d+)\]u?int8`)
-	b = convertPtmget.ReplaceAll(b, []byte("$1[$3]byte"))
-
-	// Remove spare fields (e.g. in Statx_t)
-	spareFieldsRegex := regexp.MustCompile(`X__spare\S*`)
-	b = spareFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove cgo padding fields
-	removePaddingFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
-	b = removePaddingFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove padding, hidden, or unused fields
-	removeFieldsRegex = regexp.MustCompile(`\b(X_\S+|Padding)`)
-	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove the first line of warning from cgo
-	b = b[bytes.IndexByte(b, '\n')+1:]
-	// Modify the command in the header to include:
-	//  mkpost, our own warning, and a build tag.
-	replacement := fmt.Sprintf(`$1 | go run mkpost.go
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s,%s`, goarch, goos)
-	cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`)
-	b = cgoCommandRegex.ReplaceAll(b, []byte(replacement))
-
-	// Rename Stat_t time fields
-	if goos == "freebsd" && goarch == "386" {
-		// Hide Stat_t.[AMCB]tim_ext fields
-		renameStatTimeExtFieldsRegex := regexp.MustCompile(`[AMCB]tim_ext`)
-		b = renameStatTimeExtFieldsRegex.ReplaceAll(b, []byte("_"))
-	}
-	renameStatTimeFieldsRegex := regexp.MustCompile(`([AMCB])(?:irth)?time?(?:spec)?\s+(Timespec|StTimespec)`)
-	b = renameStatTimeFieldsRegex.ReplaceAll(b, []byte("${1}tim ${2}"))
-
-	// gofmt
-	b, err = format.Source(b)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	os.Stdout.Write(b)
-}

vendor/golang.org/x/sys/unix/mksyscall.go

@@ -1,407 +0,0 @@
-// Copyright 2018 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.
-
-// +build ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_darwin.go) and generates system call bodies.
-The prototypes are marked by lines beginning with "//sys"
-and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named errno.
-
-A line beginning with //sysnb is like //sys, except that the
-goroutine will not be suspended during the execution of the system
-call.  This must only be used for system calls which can never
-block, as otherwise the system call could cause all goroutines to
-hang.
-*/
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32       = flag.Bool("b32", false, "32bit big-endian")
-	l32       = flag.Bool("l32", false, "32bit little-endian")
-	plan9     = flag.Bool("plan9", false, "plan9")
-	openbsd   = flag.Bool("openbsd", false, "openbsd")
-	netbsd    = flag.Bool("netbsd", false, "netbsd")
-	dragonfly = flag.Bool("dragonfly", false, "dragonfly")
-	arm       = flag.Bool("arm", false, "arm") // 64-bit value should use (even, odd)-pair
-	tags      = flag.String("tags", "", "build tags")
-	filename  = flag.String("output", "", "output file name (standard output if omitted)")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	// Get the OS and architecture (using GOARCH_TARGET if it exists)
-	goos := os.Getenv("GOOS")
-	if goos == "" {
-		fmt.Fprintln(os.Stderr, "GOOS not defined in environment")
-		os.Exit(1)
-	}
-	goarch := os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-
-	// Check that we are using the Docker-based build system if we should
-	if goos == "linux" {
-		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
-			fmt.Fprintf(os.Stderr, "In the Docker-based build system, mksyscall should not be called directly.\n")
-			fmt.Fprintf(os.Stderr, "See README.md\n")
-			os.Exit(1)
-		}
-	}
-
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	libc := false
-	if goos == "darwin" && strings.Contains(buildTags(), ",go1.12") {
-		libc = true
-	}
-	trampolines := map[string]bool{}
-
-	text := ""
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, errno error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, sysname := f[2], f[3], f[4], f[5]
-
-			// ClockGettime doesn't have a syscall number on Darwin, only generate libc wrappers.
-			if goos == "darwin" && !libc && funct == "ClockGettime" {
-				continue
-			}
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// Go function header.
-			outDecl := ""
-			if len(out) > 0 {
-				outDecl = fmt.Sprintf(" (%s)", strings.Join(out, ", "))
-			}
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outDecl)
-
-			// Check if err return available
-			errvar := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-					break
-				}
-			}
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\tvar _p%d *byte\n", n)
-					text += fmt.Sprintf("\t_p%d, %s = BytePtrFromString(%s)\n", n, errvar, p.Name)
-					text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\tvar _p%d *byte\n", n)
-					text += fmt.Sprintf("\t_p%d, _ = BytePtrFromString(%s)\n", n, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass dummy pointer in that case.
-					// Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
-					text += fmt.Sprintf("\tvar _p%d unsafe.Pointer\n", n)
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = unsafe.Pointer(&%s[0])\n\t}", p.Name, n, p.Name)
-					text += fmt.Sprintf(" else {\n\t\t_p%d = unsafe.Pointer(&_zero)\n\t}\n", n)
-					args = append(args, fmt.Sprintf("uintptr(_p%d)", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
-					n++
-				} else if p.Type == "int64" && (*openbsd || *netbsd) {
-					args = append(args, "0")
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else if endianness == "little-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-					}
-				} else if p.Type == "int64" && *dragonfly {
-					if regexp.MustCompile(`^(?i)extp(read|write)`).FindStringSubmatch(funct) == nil {
-						args = append(args, "0")
-					}
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else if endianness == "little-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-					}
-				} else if (p.Type == "int64" || p.Type == "uint64") && endianness != "" {
-					if len(args)%2 == 1 && *arm {
-						// arm abi specifies 64-bit argument uses
-						// (even, odd) pair
-						args = append(args, "0")
-					}
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-				} else {
-					args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-				}
-			}
-
-			// Determine which form to use; pad args with zeros.
-			asm := "Syscall"
-			if nonblock != nil {
-				if errvar == "" && goos == "linux" {
-					asm = "RawSyscallNoError"
-				} else {
-					asm = "RawSyscall"
-				}
-			} else {
-				if errvar == "" && goos == "linux" {
-					asm = "SyscallNoError"
-				}
-			}
-			if len(args) <= 3 {
-				for len(args) < 3 {
-					args = append(args, "0")
-				}
-			} else if len(args) <= 6 {
-				asm += "6"
-				for len(args) < 6 {
-					args = append(args, "0")
-				}
-			} else if len(args) <= 9 {
-				asm += "9"
-				for len(args) < 9 {
-					args = append(args, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s:%s too many arguments to system call\n", path, funct)
-			}
-
-			// System call number.
-			if sysname == "" {
-				sysname = "SYS_" + funct
-				sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-				sysname = strings.ToUpper(sysname)
-			}
-
-			var libcFn string
-			if libc {
-				asm = "syscall_" + strings.ToLower(asm[:1]) + asm[1:] // internal syscall call
-				sysname = strings.TrimPrefix(sysname, "SYS_")         // remove SYS_
-				sysname = strings.ToLower(sysname)                    // lowercase
-				if sysname == "getdirentries64" {
-					// Special case - libSystem name and
-					// raw syscall name don't match.
-					sysname = "__getdirentries64"
-				}
-				libcFn = sysname
-				sysname = "funcPC(libc_" + sysname + "_trampoline)"
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := fmt.Sprintf("%s(%s, %s)", asm, sysname, arglist)
-
-			// Assign return values.
-			body := ""
-			ret := []string{"_", "_", "_"}
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" && !*plan9 {
-					reg = "e1"
-					ret[2] = reg
-					doErrno = true
-				} else if p.Name == "err" && *plan9 {
-					ret[0] = "r0"
-					ret[2] = "e1"
-					break
-				} else {
-					reg = fmt.Sprintf("r%d", i)
-					ret[i] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%s != 0", reg)
-				}
-				if p.Type == "int64" && endianness != "" {
-					// 64-bit number in r1:r0 or r0:r1.
-					if i+2 > len(out) {
-						fmt.Fprintf(os.Stderr, "%s:%s not enough registers for int64 return\n", path, funct)
-					}
-					if endianness == "big-endian" {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
-					} else {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
-					}
-					ret[i] = fmt.Sprintf("r%d", i)
-					ret[i+1] = fmt.Sprintf("r%d", i+1)
-				}
-				if reg != "e1" || *plan9 {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
-				text += fmt.Sprintf("\t%s\n", call)
-			} else {
-				if errvar == "" && goos == "linux" {
-					// raw syscall without error on Linux, see golang.org/issue/22924
-					text += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], call)
-				} else {
-					text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
-				}
-			}
-			text += body
-
-			if *plan9 && ret[2] == "e1" {
-				text += "\tif int32(r0) == -1 {\n"
-				text += "\t\terr = e1\n"
-				text += "\t}\n"
-			} else if doErrno {
-				text += "\tif e1 != 0 {\n"
-				text += "\t\terr = errnoErr(e1)\n"
-				text += "\t}\n"
-			}
-			text += "\treturn\n"
-			text += "}\n\n"
-
-			if libc && !trampolines[libcFn] {
-				// some system calls share a trampoline, like read and readlen.
-				trampolines[libcFn] = true
-				// Declare assembly trampoline.
-				text += fmt.Sprintf("func libc_%s_trampoline()\n", libcFn)
-				// Assembly trampoline calls the libc_* function, which this magic
-				// redirects to use the function from libSystem.
-				text += fmt.Sprintf("//go:linkname libc_%s libc_%s\n", libcFn, libcFn)
-				text += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"/usr/lib/libSystem.B.dylib\"\n", libcFn, libcFn)
-				text += "\n"
-			}
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var _ syscall.Errno
-
-%s
-`

vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go

@@ -1,415 +0,0 @@
-// Copyright 2019 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.
-
-// +build ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_aix.go) and generates system call bodies.
-The prototypes are marked by lines beginning with "//sys"
-and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named err.
-	* If go func name needs to be different than its libc name,
-	* or the function is not in libc, name could be specified
-	* at the end, after "=" sign, like
-	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-*/
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	aix  = flag.Bool("aix", false, "aix")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_aix_ppc.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	text := ""
-	cExtern := "/*\n#include <stdint.h>\n#include <stddef.h>\n"
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, err error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// Check if value return, err return available
-			errvar := ""
-			retvar := ""
-			rettype := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-				} else {
-					retvar = p.Name
-					rettype = p.Type
-				}
-			}
-
-			// System call name.
-			if sysname == "" {
-				sysname = funct
-			}
-			sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			cRettype := ""
-			if rettype == "unsafe.Pointer" {
-				cRettype = "uintptr_t"
-			} else if rettype == "uintptr" {
-				cRettype = "uintptr_t"
-			} else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil {
-				cRettype = "uintptr_t"
-			} else if rettype == "int" {
-				cRettype = "int"
-			} else if rettype == "int32" {
-				cRettype = "int"
-			} else if rettype == "int64" {
-				cRettype = "long long"
-			} else if rettype == "uint32" {
-				cRettype = "unsigned int"
-			} else if rettype == "uint64" {
-				cRettype = "unsigned long long"
-			} else {
-				cRettype = "int"
-			}
-			if sysname == "exit" {
-				cRettype = "void"
-			}
-
-			// Change p.Types to c
-			var cIn []string
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "string" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t", "size_t")
-				} else if p.Type == "unsafe.Pointer" {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "uintptr" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "int" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int32" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int64" {
-					cIn = append(cIn, "long long")
-				} else if p.Type == "uint32" {
-					cIn = append(cIn, "unsigned int")
-				} else if p.Type == "uint64" {
-					cIn = append(cIn, "unsigned long long")
-				} else {
-					cIn = append(cIn, "int")
-				}
-			}
-
-			if funct != "fcntl" && funct != "FcntlInt" && funct != "readlen" && funct != "writelen" {
-				if sysname == "select" {
-					// select is a keyword of Go. Its name is
-					// changed to c_select.
-					cExtern += "#define c_select select\n"
-				}
-				// Imports of system calls from libc
-				cExtern += fmt.Sprintf("%s %s", cRettype, sysname)
-				cIn := strings.Join(cIn, ", ")
-				cExtern += fmt.Sprintf("(%s);\n", cIn)
-			}
-
-			// So file name.
-			if *aix {
-				if modname == "" {
-					modname = "libc.a/shr_64.o"
-				} else {
-					fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct)
-					os.Exit(1)
-				}
-			}
-
-			strconvfunc := "C.CString"
-
-			// Go function header.
-			if outps != "" {
-				outps = fmt.Sprintf(" (%s)", outps)
-			}
-			if text != "" {
-				text += "\n"
-			}
-
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps)
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			argN := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "C.uintptr_t(uintptr(unsafe.Pointer("+p.Name+")))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					text += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1])
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(unsafe.Pointer(_p%d)))", n))
-					n++
-					text += fmt.Sprintf("\tvar _p%d int\n", n)
-					text += fmt.Sprintf("\t_p%d = len(%s)\n", n, p.Name)
-					args = append(args, fmt.Sprintf("C.size_t(_p%d)", n))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-					n++
-				} else if p.Type == "bool" {
-					text += fmt.Sprintf("\tvar _p%d uint32\n", n)
-					text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
-					args = append(args, fmt.Sprintf("_p%d", n))
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name))
-				} else if p.Type == "unsafe.Pointer" {
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name))
-				} else if p.Type == "int" {
-					if (argN == 2) && ((funct == "readlen") || (funct == "writelen")) {
-						args = append(args, fmt.Sprintf("C.size_t(%s)", p.Name))
-					} else if argN == 0 && funct == "fcntl" {
-						args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-					} else if (argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt")) {
-						args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-					}
-				} else if p.Type == "int32" {
-					args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-				} else if p.Type == "int64" {
-					args = append(args, fmt.Sprintf("C.longlong(%s)", p.Name))
-				} else if p.Type == "uint32" {
-					args = append(args, fmt.Sprintf("C.uint(%s)", p.Name))
-				} else if p.Type == "uint64" {
-					args = append(args, fmt.Sprintf("C.ulonglong(%s)", p.Name))
-				} else if p.Type == "uintptr" {
-					args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else {
-					args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-				}
-				argN++
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := ""
-			if sysname == "exit" {
-				if errvar != "" {
-					call += "er :="
-				} else {
-					call += ""
-				}
-			} else if errvar != "" {
-				call += "r0,er :="
-			} else if retvar != "" {
-				call += "r0,_ :="
-			} else {
-				call += ""
-			}
-			if sysname == "select" {
-				// select is a keyword of Go. Its name is
-				// changed to c_select.
-				call += fmt.Sprintf("C.c_%s(%s)", sysname, arglist)
-			} else {
-				call += fmt.Sprintf("C.%s(%s)", sysname, arglist)
-			}
-
-			// Assign return values.
-			body := ""
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-				} else {
-					reg = "r0"
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-
-			// verify return
-			if sysname != "exit" && errvar != "" {
-				if regexp.MustCompile(`^uintptr`).FindStringSubmatch(cRettype) != nil {
-					body += "\tif (uintptr(r0) ==^uintptr(0) && er != nil) {\n"
-					body += fmt.Sprintf("\t\t%s = er\n", errvar)
-					body += "\t}\n"
-				} else {
-					body += "\tif (r0 ==-1 && er != nil) {\n"
-					body += fmt.Sprintf("\t\t%s = er\n", errvar)
-					body += "\t}\n"
-				}
-			} else if errvar != "" {
-				body += "\tif (er != nil) {\n"
-				body += fmt.Sprintf("\t\t%s = er\n", errvar)
-				body += "\t}\n"
-			}
-
-			text += fmt.Sprintf("\t%s\n", call)
-			text += body
-
-			text += "\treturn\n"
-			text += "}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, cExtern, imp, text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-
-%s
-*/
-import "C"
-import (
-	"unsafe"
-)
-
-
-%s
-
-%s
-`

vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go

@@ -1,614 +0,0 @@
-// Copyright 2019 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.
-
-// +build ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_aix.go) and generates system call bodies.
-The prototypes are marked by lines beginning with "//sys"
-and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named err.
-	* If go func name needs to be different than its libc name,
-	* or the function is not in libc, name could be specified
-	* at the end, after "=" sign, like
-	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-
-
-This program will generate three files and handle both gc and gccgo implementation:
-  - zsyscall_aix_ppc64.go: the common part of each implementation (error handler, pointer creation)
-  - zsyscall_aix_ppc64_gc.go: gc part with //go_cgo_import_dynamic and a call to syscall6
-  - zsyscall_aix_ppc64_gccgo.go: gccgo part with C function and conversion to C type.
-
- The generated code looks like this
-
-zsyscall_aix_ppc64.go
-func asyscall(...) (n int, err error) {
-	 // Pointer Creation
-	 r1, e1 := callasyscall(...)
-	 // Type Conversion
-	 // Error Handler
-	 return
-}
-
-zsyscall_aix_ppc64_gc.go
-//go:cgo_import_dynamic libc_asyscall asyscall "libc.a/shr_64.o"
-//go:linkname libc_asyscall libc_asyscall
-var asyscall syscallFunc
-
-func callasyscall(...) (r1 uintptr, e1 Errno) {
-	 r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_asyscall)), "nb_args", ... )
-	 return
-}
-
-zsyscall_aix_ppc64_ggcgo.go
-
-// int asyscall(...)
-
-import "C"
-
-func callasyscall(...) (r1 uintptr, e1 Errno) {
-	 r1 = uintptr(C.asyscall(...))
-	 e1 = syscall.GetErrno()
-	 return
-}
-*/
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	aix  = flag.Bool("aix", false, "aix")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_aix_ppc64.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc64.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	// GCCGO
-	textgccgo := ""
-	cExtern := "/*\n#include <stdint.h>\n"
-	// GC
-	textgc := ""
-	dynimports := ""
-	linknames := ""
-	var vars []string
-	// COMMON
-	textcommon := ""
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, err error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			if sysname == "" {
-				sysname = funct
-			}
-
-			onlyCommon := false
-			if funct == "readlen" || funct == "writelen" || funct == "FcntlInt" || funct == "FcntlFlock" {
-				// This function call another syscall which is already implemented.
-				// Therefore, the gc and gccgo part must not be generated.
-				onlyCommon = true
-			}
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-
-			textcommon += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-			if !onlyCommon {
-				textgccgo += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-				textgc += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-			}
-
-			// Check if value return, err return available
-			errvar := ""
-			rettype := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-				} else {
-					rettype = p.Type
-				}
-			}
-
-			sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			// GCCGO Prototype return type
-			cRettype := ""
-			if rettype == "unsafe.Pointer" {
-				cRettype = "uintptr_t"
-			} else if rettype == "uintptr" {
-				cRettype = "uintptr_t"
-			} else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil {
-				cRettype = "uintptr_t"
-			} else if rettype == "int" {
-				cRettype = "int"
-			} else if rettype == "int32" {
-				cRettype = "int"
-			} else if rettype == "int64" {
-				cRettype = "long long"
-			} else if rettype == "uint32" {
-				cRettype = "unsigned int"
-			} else if rettype == "uint64" {
-				cRettype = "unsigned long long"
-			} else {
-				cRettype = "int"
-			}
-			if sysname == "exit" {
-				cRettype = "void"
-			}
-
-			// GCCGO Prototype arguments type
-			var cIn []string
-			for i, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "string" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t", "size_t")
-				} else if p.Type == "unsafe.Pointer" {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "uintptr" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "int" {
-					if (i == 0 || i == 2) && funct == "fcntl" {
-						// These fcntl arguments needs to be uintptr to be able to call FcntlInt and FcntlFlock
-						cIn = append(cIn, "uintptr_t")
-					} else {
-						cIn = append(cIn, "int")
-					}
-
-				} else if p.Type == "int32" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int64" {
-					cIn = append(cIn, "long long")
-				} else if p.Type == "uint32" {
-					cIn = append(cIn, "unsigned int")
-				} else if p.Type == "uint64" {
-					cIn = append(cIn, "unsigned long long")
-				} else {
-					cIn = append(cIn, "int")
-				}
-			}
-
-			if !onlyCommon {
-				// GCCGO Prototype Generation
-				// Imports of system calls from libc
-				if sysname == "select" {
-					// select is a keyword of Go. Its name is
-					// changed to c_select.
-					cExtern += "#define c_select select\n"
-				}
-				cExtern += fmt.Sprintf("%s %s", cRettype, sysname)
-				cIn := strings.Join(cIn, ", ")
-				cExtern += fmt.Sprintf("(%s);\n", cIn)
-			}
-			// GC Library name
-			if modname == "" {
-				modname = "libc.a/shr_64.o"
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct)
-				os.Exit(1)
-			}
-			sysvarname := fmt.Sprintf("libc_%s", sysname)
-
-			if !onlyCommon {
-				// GC Runtime import of function to allow cross-platform builds.
-				dynimports += fmt.Sprintf("//go:cgo_import_dynamic %s %s \"%s\"\n", sysvarname, sysname, modname)
-				// GC Link symbol to proc address variable.
-				linknames += fmt.Sprintf("//go:linkname %s %s\n", sysvarname, sysvarname)
-				// GC Library proc address variable.
-				vars = append(vars, sysvarname)
-			}
-
-			strconvfunc := "BytePtrFromString"
-			strconvtype := "*byte"
-
-			// Go function header.
-			if outps != "" {
-				outps = fmt.Sprintf(" (%s)", outps)
-			}
-			if textcommon != "" {
-				textcommon += "\n"
-			}
-
-			textcommon += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps)
-
-			// Prepare arguments tocall.
-			var argscommon []string // Arguments in the common part
-			var argscall []string   // Arguments for call prototype
-			var argsgc []string     // Arguments for gc call (with syscall6)
-			var argsgccgo []string  // Arguments for gccgo call (with C.name_of_syscall)
-			n := 0
-			argN := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(%s))", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else if p.Type == "string" && errvar != "" {
-					textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr ", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					textcommon += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1])
-					textcommon += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("len(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n), fmt.Sprintf("_lenp%d int", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n), fmt.Sprintf("uintptr(_lenp%d)", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n), fmt.Sprintf("C.size_t(_lenp%d)", n))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses int64 with 32 bits mode. Case not yet implemented\n")
-				} else if p.Type == "bool" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses bool. Case not yet implemented\n")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil || p.Type == "unsafe.Pointer" {
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else if p.Type == "int" {
-					if (argN == 0 || argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt") || (funct == "FcntlFlock")) {
-						// These fcntl arguments need to be uintptr to be able to call FcntlInt and FcntlFlock
-						argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name))
-						argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-						argsgc = append(argsgc, p.Name)
-						argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-
-					} else {
-						argscommon = append(argscommon, p.Name)
-						argscall = append(argscall, fmt.Sprintf("%s int", p.Name))
-						argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-						argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-					}
-				} else if p.Type == "int32" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s int32", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-				} else if p.Type == "int64" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s int64", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.longlong(%s)", p.Name))
-				} else if p.Type == "uint32" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uint32", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uint(%s)", p.Name))
-				} else if p.Type == "uint64" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uint64", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.ulonglong(%s)", p.Name))
-				} else if p.Type == "uintptr" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else {
-					argscommon = append(argscommon, fmt.Sprintf("int(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s int", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-				}
-				argN++
-			}
-			nargs := len(argsgc)
-
-			// COMMON function generation
-			argscommonlist := strings.Join(argscommon, ", ")
-			callcommon := fmt.Sprintf("call%s(%s)", sysname, argscommonlist)
-			ret := []string{"_", "_"}
-			body := ""
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-					ret[1] = reg
-					doErrno = true
-				} else {
-					reg = "r0"
-					ret[0] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%s != 0", reg)
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" {
-				textcommon += fmt.Sprintf("\t%s\n", callcommon)
-			} else {
-				textcommon += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], callcommon)
-			}
-			textcommon += body
-
-			if doErrno {
-				textcommon += "\tif e1 != 0 {\n"
-				textcommon += "\t\terr = errnoErr(e1)\n"
-				textcommon += "\t}\n"
-			}
-			textcommon += "\treturn\n"
-			textcommon += "}\n"
-
-			if onlyCommon {
-				continue
-			}
-
-			// CALL Prototype
-			callProto := fmt.Sprintf("func call%s(%s) (r1 uintptr, e1 Errno) {\n", sysname, strings.Join(argscall, ", "))
-
-			// GC function generation
-			asm := "syscall6"
-			if nonblock != nil {
-				asm = "rawSyscall6"
-			}
-
-			if len(argsgc) <= 6 {
-				for len(argsgc) < 6 {
-					argsgc = append(argsgc, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: too many arguments to system call", funct)
-				os.Exit(1)
-			}
-			argsgclist := strings.Join(argsgc, ", ")
-			callgc := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, argsgclist)
-
-			textgc += callProto
-			textgc += fmt.Sprintf("\tr1, _, e1 = %s\n", callgc)
-			textgc += "\treturn\n}\n"
-
-			// GCCGO function generation
-			argsgccgolist := strings.Join(argsgccgo, ", ")
-			var callgccgo string
-			if sysname == "select" {
-				// select is a keyword of Go. Its name is
-				// changed to c_select.
-				callgccgo = fmt.Sprintf("C.c_%s(%s)", sysname, argsgccgolist)
-			} else {
-				callgccgo = fmt.Sprintf("C.%s(%s)", sysname, argsgccgolist)
-			}
-			textgccgo += callProto
-			textgccgo += fmt.Sprintf("\tr1 = uintptr(%s)\n", callgccgo)
-			textgccgo += "\te1 = syscall.GetErrno()\n"
-			textgccgo += "\treturn\n}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-
-	// Print zsyscall_aix_ppc64.go
-	err := ioutil.WriteFile("zsyscall_aix_ppc64.go",
-		[]byte(fmt.Sprintf(srcTemplate1, cmdLine(), buildTags(), pack, imp, textcommon)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-
-	// Print zsyscall_aix_ppc64_gc.go
-	vardecls := "\t" + strings.Join(vars, ",\n\t")
-	vardecls += " syscallFunc"
-	err = ioutil.WriteFile("zsyscall_aix_ppc64_gc.go",
-		[]byte(fmt.Sprintf(srcTemplate2, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, textgc)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-
-	// Print zsyscall_aix_ppc64_gccgo.go
-	err = ioutil.WriteFile("zsyscall_aix_ppc64_gccgo.go",
-		[]byte(fmt.Sprintf(srcTemplate3, cmdLine(), buildTags(), pack, cExtern, imp, textgccgo)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-}
-
-const srcTemplate1 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-import (
-	"unsafe"
-)
-
-
-%s
-
-%s
-`
-const srcTemplate2 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-// +build !gccgo
-
-package %s
-
-import (
-	"unsafe"
-)
-%s
-%s
-%s
-type syscallFunc uintptr
-
-var (
-%s
-)
-
-// Implemented in runtime/syscall_aix.go.
-func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
-func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
-
-%s
-`
-const srcTemplate3 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-// +build gccgo
-
-package %s
-
-%s
-*/
-import "C"
-import (
-	"syscall"
-)
-
-
-%s
-
-%s
-`

vendor/golang.org/x/sys/unix/mksyscall_solaris.go

@@ -1,335 +0,0 @@
-// Copyright 2019 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.
-
-// +build ignore
-
-/*
- This program reads a file containing function prototypes
- (like syscall_solaris.go) and generates system call bodies.
- The prototypes are marked by lines beginning with "//sys"
- and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named err.
-	* If go func name needs to be different than its libc name,
-	* or the function is not in libc, name could be specified
-	* at the end, after "=" sign, like
-	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-*/
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_solaris.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_solaris.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	text := ""
-	dynimports := ""
-	linknames := ""
-	var vars []string
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, err error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// So file name.
-			if modname == "" {
-				modname = "libc"
-			}
-
-			// System call name.
-			if sysname == "" {
-				sysname = funct
-			}
-
-			// System call pointer variable name.
-			sysvarname := fmt.Sprintf("proc%s", sysname)
-
-			strconvfunc := "BytePtrFromString"
-			strconvtype := "*byte"
-
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			// Runtime import of function to allow cross-platform builds.
-			dynimports += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"%s.so\"\n", sysname, sysname, modname)
-			// Link symbol to proc address variable.
-			linknames += fmt.Sprintf("//go:linkname %s libc_%s\n", sysvarname, sysname)
-			// Library proc address variable.
-			vars = append(vars, sysvarname)
-
-			// Go function header.
-			outlist := strings.Join(out, ", ")
-			if outlist != "" {
-				outlist = fmt.Sprintf(" (%s)", outlist)
-			}
-			if text != "" {
-				text += "\n"
-			}
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outlist)
-
-			// Check if err return available
-			errvar := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-					continue
-				}
-			}
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					text += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					text += fmt.Sprintf("\t_p%d, _ = %s(%s)\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if s := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); s != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					text += fmt.Sprintf("\tvar _p%d *%s\n", n, s[1])
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-				} else if p.Type == "bool" {
-					text += fmt.Sprintf("\tvar _p%d uint32\n", n)
-					text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
-					args = append(args, fmt.Sprintf("uintptr(_p%d)", n))
-					n++
-				} else {
-					args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-				}
-			}
-			nargs := len(args)
-
-			// Determine which form to use; pad args with zeros.
-			asm := "sysvicall6"
-			if nonblock != nil {
-				asm = "rawSysvicall6"
-			}
-			if len(args) <= 6 {
-				for len(args) < 6 {
-					args = append(args, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: too many arguments to system call\n", path)
-				os.Exit(1)
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, arglist)
-
-			// Assign return values.
-			body := ""
-			ret := []string{"_", "_", "_"}
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-					ret[2] = reg
-					doErrno = true
-				} else {
-					reg = fmt.Sprintf("r%d", i)
-					ret[i] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%d != 0", reg)
-				}
-				if p.Type == "int64" && endianness != "" {
-					// 64-bit number in r1:r0 or r0:r1.
-					if i+2 > len(out) {
-						fmt.Fprintf(os.Stderr, "%s: not enough registers for int64 return\n", path)
-						os.Exit(1)
-					}
-					if endianness == "big-endian" {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
-					} else {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
-					}
-					ret[i] = fmt.Sprintf("r%d", i)
-					ret[i+1] = fmt.Sprintf("r%d", i+1)
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
-				text += fmt.Sprintf("\t%s\n", call)
-			} else {
-				text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
-			}
-			text += body
-
-			if doErrno {
-				text += "\tif e1 != 0 {\n"
-				text += "\t\terr = e1\n"
-				text += "\t}\n"
-			}
-			text += "\treturn\n"
-			text += "}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-	vardecls := "\t" + strings.Join(vars, ",\n\t")
-	vardecls += " syscallFunc"
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-import (
-	"syscall"
-	"unsafe"
-)
-%s
-%s
-%s
-var (
-%s	
-)
-
-%s
-`

vendor/golang.org/x/sys/unix/mksysctl_openbsd.go

@@ -1,355 +0,0 @@
-// Copyright 2019 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.
-
-// +build ignore
-
-// Parse the header files for OpenBSD and generate a Go usable sysctl MIB.
-//
-// Build a MIB with each entry being an array containing the level, type and
-// a hash that will contain additional entries if the current entry is a node.
-// We then walk this MIB and create a flattened sysctl name to OID hash.
-
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"path/filepath"
-	"regexp"
-	"sort"
-	"strings"
-)
-
-var (
-	goos, goarch string
-)
-
-// cmdLine returns this programs's commandline arguments.
-func cmdLine() string {
-	return "go run mksysctl_openbsd.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags.
-func buildTags() string {
-	return fmt.Sprintf("%s,%s", goarch, goos)
-}
-
-// reMatch performs regular expression match and stores the substring slice to value pointed by m.
-func reMatch(re *regexp.Regexp, str string, m *[]string) bool {
-	*m = re.FindStringSubmatch(str)
-	if *m != nil {
-		return true
-	}
-	return false
-}
-
-type nodeElement struct {
-	n  int
-	t  string
-	pE *map[string]nodeElement
-}
-
-var (
-	debugEnabled bool
-	mib          map[string]nodeElement
-	node         *map[string]nodeElement
-	nodeMap      map[string]string
-	sysCtl       []string
-)
-
-var (
-	ctlNames1RE = regexp.MustCompile(`^#define\s+(CTL_NAMES)\s+{`)
-	ctlNames2RE = regexp.MustCompile(`^#define\s+(CTL_(.*)_NAMES)\s+{`)
-	ctlNames3RE = regexp.MustCompile(`^#define\s+((.*)CTL_NAMES)\s+{`)
-	netInetRE   = regexp.MustCompile(`^netinet/`)
-	netInet6RE  = regexp.MustCompile(`^netinet6/`)
-	netRE       = regexp.MustCompile(`^net/`)
-	bracesRE    = regexp.MustCompile(`{.*}`)
-	ctlTypeRE   = regexp.MustCompile(`{\s+"(\w+)",\s+(CTLTYPE_[A-Z]+)\s+}`)
-	fsNetKernRE = regexp.MustCompile(`^(fs|net|kern)_`)
-)
-
-func debug(s string) {
-	if debugEnabled {
-		fmt.Fprintln(os.Stderr, s)
-	}
-}
-
-// Walk the MIB and build a sysctl name to OID mapping.
-func buildSysctl(pNode *map[string]nodeElement, name string, oid []int) {
-	lNode := pNode // local copy of pointer to node
-	var keys []string
-	for k := range *lNode {
-		keys = append(keys, k)
-	}
-	sort.Strings(keys)
-
-	for _, key := range keys {
-		nodename := name
-		if name != "" {
-			nodename += "."
-		}
-		nodename += key
-
-		nodeoid := append(oid, (*pNode)[key].n)
-
-		if (*pNode)[key].t == `CTLTYPE_NODE` {
-			if _, ok := nodeMap[nodename]; ok {
-				lNode = &mib
-				ctlName := nodeMap[nodename]
-				for _, part := range strings.Split(ctlName, ".") {
-					lNode = ((*lNode)[part]).pE
-				}
-			} else {
-				lNode = (*pNode)[key].pE
-			}
-			buildSysctl(lNode, nodename, nodeoid)
-		} else if (*pNode)[key].t != "" {
-			oidStr := []string{}
-			for j := range nodeoid {
-				oidStr = append(oidStr, fmt.Sprintf("%d", nodeoid[j]))
-			}
-			text := "\t{ \"" + nodename + "\", []_C_int{ " + strings.Join(oidStr, ", ") + " } }, \n"
-			sysCtl = append(sysCtl, text)
-		}
-	}
-}
-
-func main() {
-	// Get the OS (using GOOS_TARGET if it exist)
-	goos = os.Getenv("GOOS_TARGET")
-	if goos == "" {
-		goos = os.Getenv("GOOS")
-	}
-	// Get the architecture (using GOARCH_TARGET if it exists)
-	goarch = os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check if GOOS and GOARCH environment variables are defined
-	if goarch == "" || goos == "" {
-		fmt.Fprintf(os.Stderr, "GOARCH or GOOS not defined in environment\n")
-		os.Exit(1)
-	}
-
-	mib = make(map[string]nodeElement)
-	headers := [...]string{
-		`sys/sysctl.h`,
-		`sys/socket.h`,
-		`sys/tty.h`,
-		`sys/malloc.h`,
-		`sys/mount.h`,
-		`sys/namei.h`,
-		`sys/sem.h`,
-		`sys/shm.h`,
-		`sys/vmmeter.h`,
-		`uvm/uvmexp.h`,
-		`uvm/uvm_param.h`,
-		`uvm/uvm_swap_encrypt.h`,
-		`ddb/db_var.h`,
-		`net/if.h`,
-		`net/if_pfsync.h`,
-		`net/pipex.h`,
-		`netinet/in.h`,
-		`netinet/icmp_var.h`,
-		`netinet/igmp_var.h`,
-		`netinet/ip_ah.h`,
-		`netinet/ip_carp.h`,
-		`netinet/ip_divert.h`,
-		`netinet/ip_esp.h`,
-		`netinet/ip_ether.h`,
-		`netinet/ip_gre.h`,
-		`netinet/ip_ipcomp.h`,
-		`netinet/ip_ipip.h`,
-		`netinet/pim_var.h`,
-		`netinet/tcp_var.h`,
-		`netinet/udp_var.h`,
-		`netinet6/in6.h`,
-		`netinet6/ip6_divert.h`,
-		`netinet6/pim6_var.h`,
-		`netinet/icmp6.h`,
-		`netmpls/mpls.h`,
-	}
-
-	ctls := [...]string{
-		`kern`,
-		`vm`,
-		`fs`,
-		`net`,
-		//debug			/* Special handling required */
-		`hw`,
-		//machdep		/* Arch specific */
-		`user`,
-		`ddb`,
-		//vfs			/* Special handling required */
-		`fs.posix`,
-		`kern.forkstat`,
-		`kern.intrcnt`,
-		`kern.malloc`,
-		`kern.nchstats`,
-		`kern.seminfo`,
-		`kern.shminfo`,
-		`kern.timecounter`,
-		`kern.tty`,
-		`kern.watchdog`,
-		`net.bpf`,
-		`net.ifq`,
-		`net.inet`,
-		`net.inet.ah`,
-		`net.inet.carp`,
-		`net.inet.divert`,
-		`net.inet.esp`,
-		`net.inet.etherip`,
-		`net.inet.gre`,
-		`net.inet.icmp`,
-		`net.inet.igmp`,
-		`net.inet.ip`,
-		`net.inet.ip.ifq`,
-		`net.inet.ipcomp`,
-		`net.inet.ipip`,
-		`net.inet.mobileip`,
-		`net.inet.pfsync`,
-		`net.inet.pim`,
-		`net.inet.tcp`,
-		`net.inet.udp`,
-		`net.inet6`,
-		`net.inet6.divert`,
-		`net.inet6.ip6`,
-		`net.inet6.icmp6`,
-		`net.inet6.pim6`,
-		`net.inet6.tcp6`,
-		`net.inet6.udp6`,
-		`net.mpls`,
-		`net.mpls.ifq`,
-		`net.key`,
-		`net.pflow`,
-		`net.pfsync`,
-		`net.pipex`,
-		`net.rt`,
-		`vm.swapencrypt`,
-		//vfsgenctl		/* Special handling required */
-	}
-
-	// Node name "fixups"
-	ctlMap := map[string]string{
-		"ipproto":             "net.inet",
-		"net.inet.ipproto":    "net.inet",
-		"net.inet6.ipv6proto": "net.inet6",
-		"net.inet6.ipv6":      "net.inet6.ip6",
-		"net.inet.icmpv6":     "net.inet6.icmp6",
-		"net.inet6.divert6":   "net.inet6.divert",
-		"net.inet6.tcp6":      "net.inet.tcp",
-		"net.inet6.udp6":      "net.inet.udp",
-		"mpls":                "net.mpls",
-		"swpenc":              "vm.swapencrypt",
-	}
-
-	// Node mappings
-	nodeMap = map[string]string{
-		"net.inet.ip.ifq": "net.ifq",
-		"net.inet.pfsync": "net.pfsync",
-		"net.mpls.ifq":    "net.ifq",
-	}
-
-	mCtls := make(map[string]bool)
-	for _, ctl := range ctls {
-		mCtls[ctl] = true
-	}
-
-	for _, header := range headers {
-		debug("Processing " + header)
-		file, err := os.Open(filepath.Join("/usr/include", header))
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "%v\n", err)
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			var sub []string
-			if reMatch(ctlNames1RE, s.Text(), &sub) ||
-				reMatch(ctlNames2RE, s.Text(), &sub) ||
-				reMatch(ctlNames3RE, s.Text(), &sub) {
-				if sub[1] == `CTL_NAMES` {
-					// Top level.
-					node = &mib
-				} else {
-					// Node.
-					nodename := strings.ToLower(sub[2])
-					ctlName := ""
-					if reMatch(netInetRE, header, &sub) {
-						ctlName = "net.inet." + nodename
-					} else if reMatch(netInet6RE, header, &sub) {
-						ctlName = "net.inet6." + nodename
-					} else if reMatch(netRE, header, &sub) {
-						ctlName = "net." + nodename
-					} else {
-						ctlName = nodename
-						ctlName = fsNetKernRE.ReplaceAllString(ctlName, `$1.`)
-					}
-
-					if val, ok := ctlMap[ctlName]; ok {
-						ctlName = val
-					}
-					if _, ok := mCtls[ctlName]; !ok {
-						debug("Ignoring " + ctlName + "...")
-						continue
-					}
-
-					// Walk down from the top of the MIB.
-					node = &mib
-					for _, part := range strings.Split(ctlName, ".") {
-						if _, ok := (*node)[part]; !ok {
-							debug("Missing node " + part)
-							(*node)[part] = nodeElement{n: 0, t: "", pE: &map[string]nodeElement{}}
-						}
-						node = (*node)[part].pE
-					}
-				}
-
-				// Populate current node with entries.
-				i := -1
-				for !strings.HasPrefix(s.Text(), "}") {
-					s.Scan()
-					if reMatch(bracesRE, s.Text(), &sub) {
-						i++
-					}
-					if !reMatch(ctlTypeRE, s.Text(), &sub) {
-						continue
-					}
-					(*node)[sub[1]] = nodeElement{n: i, t: sub[2], pE: &map[string]nodeElement{}}
-				}
-			}
-		}
-		err = s.Err()
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "%v\n", err)
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	buildSysctl(&mib, "", []int{})
-
-	sort.Strings(sysCtl)
-	text := strings.Join(sysCtl, "")
-
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-type mibentry struct {
-	ctlname string
-	ctloid []_C_int
-}
-
-var sysctlMib = []mibentry {
-%s
-}
-`

vendor/golang.org/x/sys/unix/mksysnum.go

@@ -1,190 +0,0 @@
-// Copyright 2018 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.
-
-// +build ignore
-
-// Generate system call table for DragonFly, NetBSD,
-// FreeBSD, OpenBSD or Darwin from master list
-// (for example, /usr/src/sys/kern/syscalls.master or
-// sys/syscall.h).
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	goos, goarch string
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksysnum.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return fmt.Sprintf("%s,%s", goarch, goos)
-}
-
-func checkErr(err error) {
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "%v\n", err)
-		os.Exit(1)
-	}
-}
-
-// source string and substring slice for regexp
-type re struct {
-	str string   // source string
-	sub []string // matched sub-string
-}
-
-// Match performs regular expression match
-func (r *re) Match(exp string) bool {
-	r.sub = regexp.MustCompile(exp).FindStringSubmatch(r.str)
-	if r.sub != nil {
-		return true
-	}
-	return false
-}
-
-// fetchFile fetches a text file from URL
-func fetchFile(URL string) io.Reader {
-	resp, err := http.Get(URL)
-	checkErr(err)
-	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
-	checkErr(err)
-	return strings.NewReader(string(body))
-}
-
-// readFile reads a text file from path
-func readFile(path string) io.Reader {
-	file, err := os.Open(os.Args[1])
-	checkErr(err)
-	return file
-}
-
-func format(name, num, proto string) string {
-	name = strings.ToUpper(name)
-	// There are multiple entries for enosys and nosys, so comment them out.
-	nm := re{str: name}
-	if nm.Match(`^SYS_E?NOSYS$`) {
-		name = fmt.Sprintf("// %s", name)
-	}
-	if name == `SYS_SYS_EXIT` {
-		name = `SYS_EXIT`
-	}
-	return fmt.Sprintf("	%s = %s;  // %s\n", name, num, proto)
-}
-
-func main() {
-	// Get the OS (using GOOS_TARGET if it exist)
-	goos = os.Getenv("GOOS_TARGET")
-	if goos == "" {
-		goos = os.Getenv("GOOS")
-	}
-	// Get the architecture (using GOARCH_TARGET if it exists)
-	goarch = os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check if GOOS and GOARCH environment variables are defined
-	if goarch == "" || goos == "" {
-		fmt.Fprintf(os.Stderr, "GOARCH or GOOS not defined in environment\n")
-		os.Exit(1)
-	}
-
-	file := strings.TrimSpace(os.Args[1])
-	var syscalls io.Reader
-	if strings.HasPrefix(file, "https://") || strings.HasPrefix(file, "http://") {
-		// Download syscalls.master file
-		syscalls = fetchFile(file)
-	} else {
-		syscalls = readFile(file)
-	}
-
-	var text, line string
-	s := bufio.NewScanner(syscalls)
-	for s.Scan() {
-		t := re{str: line}
-		if t.Match(`^(.*)\\$`) {
-			// Handle continuation
-			line = t.sub[1]
-			line += strings.TrimLeft(s.Text(), " \t")
-		} else {
-			// New line
-			line = s.Text()
-		}
-		t = re{str: line}
-		if t.Match(`\\$`) {
-			continue
-		}
-		t = re{str: line}
-
-		switch goos {
-		case "dragonfly":
-			if t.Match(`^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$`) {
-				num, proto := t.sub[1], t.sub[2]
-				name := fmt.Sprintf("SYS_%s", t.sub[3])
-				text += format(name, num, proto)
-			}
-		case "freebsd":
-			if t.Match(`^([0-9]+)\s+\S+\s+(?:(?:NO)?STD|COMPAT10)\s+({ \S+\s+(\w+).*)$`) {
-				num, proto := t.sub[1], t.sub[2]
-				name := fmt.Sprintf("SYS_%s", t.sub[3])
-				text += format(name, num, proto)
-			}
-		case "openbsd":
-			if t.Match(`^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$`) {
-				num, proto, name := t.sub[1], t.sub[3], t.sub[4]
-				text += format(name, num, proto)
-			}
-		case "netbsd":
-			if t.Match(`^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$`) {
-				num, proto, compat := t.sub[1], t.sub[6], t.sub[8]
-				name := t.sub[7] + "_" + t.sub[9]
-				if t.sub[11] != "" {
-					name = t.sub[7] + "_" + t.sub[11]
-				}
-				name = strings.ToUpper(name)
-				if compat == "" || compat == "13" || compat == "30" || compat == "50" {
-					text += fmt.Sprintf("	%s = %s;  // %s\n", name, num, proto)
-				}
-			}
-		case "darwin":
-			if t.Match(`^#define\s+SYS_(\w+)\s+([0-9]+)`) {
-				name, num := t.sub[1], t.sub[2]
-				name = strings.ToUpper(name)
-				text += fmt.Sprintf("	SYS_%s = %s;\n", name, num)
-			}
-		default:
-			fmt.Fprintf(os.Stderr, "unrecognized GOOS=%s\n", goos)
-			os.Exit(1)
-
-		}
-	}
-	err := s.Err()
-	checkErr(err)
-
-	fmt.Printf(template, cmdLine(), buildTags(), text)
-}
-
-const template = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-const(
-%s)`

vendor/golang.org/x/sys/unix/ptrace_darwin.go

@@ -0,0 +1,11 @@
+// Copyright 2020 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.
+
+// +build darwin,!ios
+
+package unix
+
+func ptrace(request int, pid int, addr uintptr, data uintptr) error {
+	return ptrace1(request, pid, addr, data)
+}

vendor/golang.org/x/sys/unix/ptrace_ios.go

@@ -0,0 +1,11 @@
+// Copyright 2020 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.
+
+// +build ios
+
+package unix
+
+func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
+	return ENOTSUP
+}

vendor/golang.org/x/sys/unix/sockcmsg_dragonfly.go

@@ -0,0 +1,16 @@
+// Copyright 2019 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 unix
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := SizeofPtr
+	if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
+		// 64-bit Dragonfly before the September 2019 ABI changes still requires
+		// 32-bit aligned access to network subsystem.
+		salign = 4
+	}
+	return (salen + salign - 1) & ^(salign - 1)
+}

vendor/golang.org/x/sys/unix/sockcmsg_linux.go

@@ -17,7 +17,7 @@ func UnixCredentials(ucred *Ucred) []byte {
 	h.Level = SOL_SOCKET
 	h.Type = SCM_CREDENTIALS
 	h.SetLen(CmsgLen(SizeofUcred))
-	*((*Ucred)(cmsgData(h))) = *ucred
+	*(*Ucred)(h.data(0)) = *ucred
 	return b
 }
 

vendor/golang.org/x/sys/unix/sockcmsg_unix.go

@@ -9,35 +9,9 @@
 package unix
 
 import (
-	"runtime"
 	"unsafe"
 )
 
-// Round the length of a raw sockaddr up to align it properly.
-func cmsgAlignOf(salen int) int {
-	salign := SizeofPtr
-
-	switch runtime.GOOS {
-	case "aix":
-		// There is no alignment on AIX.
-		salign = 1
-	case "darwin", "dragonfly", "solaris", "illumos":
-		// NOTE: It seems like 64-bit Darwin, DragonFly BSD,
-		// illumos, and Solaris kernels still require 32-bit
-		// aligned access to network subsystem.
-		if SizeofPtr == 8 {
-			salign = 4
-		}
-	case "netbsd", "openbsd":
-		// NetBSD and OpenBSD armv7 require 64-bit alignment.
-		if runtime.GOARCH == "arm" {
-			salign = 8
-		}
-	}
-
-	return (salen + salign - 1) & ^(salign - 1)
-}
-
 // CmsgLen returns the value to store in the Len field of the Cmsghdr
 // structure, taking into account any necessary alignment.
 func CmsgLen(datalen int) int {
@@ -50,8 +24,8 @@ func CmsgSpace(datalen int) int {
 	return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
 }
 
-func cmsgData(h *Cmsghdr) unsafe.Pointer {
+func (h *Cmsghdr) data(offset uintptr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
+	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)) + offset)
 }
 
 // SocketControlMessage represents a socket control message.
@@ -94,10 +68,8 @@ func UnixRights(fds ...int) []byte {
 	h.Level = SOL_SOCKET
 	h.Type = SCM_RIGHTS
 	h.SetLen(CmsgLen(datalen))
-	data := cmsgData(h)
+	for i, fd := range fds {
-	for _, fd := range fds {
+		*(*int32)(h.data(4 * uintptr(i))) = int32(fd)
-		*(*int32)(data) = int32(fd)
-		data = unsafe.Pointer(uintptr(data) + 4)
 	}
 	return b
 }

vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go

@@ -0,0 +1,42 @@
+// Copyright 2019 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.
+
+// +build aix darwin freebsd linux netbsd openbsd solaris
+
+package unix
+
+import (
+	"runtime"
+)
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := SizeofPtr
+
+	// dragonfly needs to check ABI version at runtime, see cmsgAlignOf in
+	// sockcmsg_dragonfly.go
+	switch runtime.GOOS {
+	case "aix":
+		// There is no alignment on AIX.
+		salign = 1
+	case "darwin", "ios", "illumos", "solaris":
+		// NOTE: It seems like 64-bit Darwin, Illumos and Solaris
+		// kernels still require 32-bit aligned access to network
+		// subsystem.
+		if SizeofPtr == 8 {
+			salign = 4
+		}
+	case "netbsd", "openbsd":
+		// NetBSD and OpenBSD armv7 require 64-bit alignment.
+		if runtime.GOARCH == "arm" {
+			salign = 8
+		}
+		// NetBSD aarch64 requires 128-bit alignment.
+		if runtime.GOOS == "netbsd" && runtime.GOARCH == "arm64" {
+			salign = 16
+		}
+	}
+
+	return (salen + salign - 1) & ^(salign - 1)
+}

vendor/golang.org/x/sys/unix/syscall.go

@@ -24,7 +24,13 @@
 // holds a value of type syscall.Errno.
 package unix // import "golang.org/x/sys/unix"
 
-import "strings"
+import (
+	"bytes"
+	"strings"
+	"unsafe"
+
+	"golang.org/x/sys/internal/unsafeheader"
+)
 
 // ByteSliceFromString returns a NUL-terminated slice of bytes
 // containing the text of s. If s contains a NUL byte at any
@@ -49,5 +55,40 @@ func BytePtrFromString(s string) (*byte, error) {
 	return &a[0], nil
 }
 
+// ByteSliceToString returns a string form of the text represented by the slice s, with a terminating NUL and any
+// bytes after the NUL removed.
+func ByteSliceToString(s []byte) string {
+	if i := bytes.IndexByte(s, 0); i != -1 {
+		s = s[:i]
+	}
+	return string(s)
+}
+
+// BytePtrToString takes a pointer to a sequence of text and returns the corresponding string.
+// If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated
+// at a zero byte; if the zero byte is not present, the program may crash.
+func BytePtrToString(p *byte) string {
+	if p == nil {
+		return ""
+	}
+	if *p == 0 {
+		return ""
+	}
+
+	// Find NUL terminator.
+	n := 0
+	for ptr := unsafe.Pointer(p); *(*byte)(ptr) != 0; n++ {
+		ptr = unsafe.Pointer(uintptr(ptr) + 1)
+	}
+
+	var s []byte
+	h := (*unsafeheader.Slice)(unsafe.Pointer(&s))
+	h.Data = unsafe.Pointer(p)
+	h.Len = n
+	h.Cap = n
+
+	return string(s)
+}
+
 // Single-word zero for use when we need a valid pointer to 0 bytes.
 var _zero uintptr

vendor/golang.org/x/sys/unix/syscall_aix.go

@@ -19,6 +19,22 @@ import "unsafe"
  * Wrapped
  */
 
+func Access(path string, mode uint32) (err error) {
+	return Faccessat(AT_FDCWD, path, mode, 0)
+}
+
+func Chmod(path string, mode uint32) (err error) {
+	return Fchmodat(AT_FDCWD, path, mode, 0)
+}
+
+func Chown(path string, uid int, gid int) (err error) {
+	return Fchownat(AT_FDCWD, path, uid, gid, 0)
+}
+
+func Creat(path string, mode uint32) (fd int, err error) {
+	return Open(path, O_CREAT|O_WRONLY|O_TRUNC, mode)
+}
+
 //sys	utimes(path string, times *[2]Timeval) (err error)
 func Utimes(path string, tv []Timeval) error {
 	if len(tv) != 2 {
@@ -350,49 +366,12 @@ func (w WaitStatus) Signal() Signal {
 
 func (w WaitStatus) Continued() bool { return w&0x01000000 != 0 }
 
-func (w WaitStatus) CoreDump() bool { return w&0x200 != 0 }
+func (w WaitStatus) CoreDump() bool { return w&0x80 == 0x80 }
 
 func (w WaitStatus) TrapCause() int { return -1 }
 
 //sys	ioctl(fd int, req uint, arg uintptr) (err error)
 
-// ioctl itself should not be exposed directly, but additional get/set
-// functions for specific types are permissible.
-
-// IoctlSetInt performs an ioctl operation which sets an integer value
-// on fd, using the specified request number.
-func IoctlSetInt(fd int, req uint, value int) error {
-	return ioctl(fd, req, uintptr(value))
-}
-
-func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-func ioctlSetTermios(fd int, req uint, value *Termios) error {
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-// IoctlGetInt performs an ioctl operation which gets an integer value
-// from fd, using the specified request number.
-func IoctlGetInt(fd int, req uint) (int, error) {
-	var value int
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return value, err
-}
-
-func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
-	var value Winsize
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
-
-func IoctlGetTermios(fd int, req uint) (*Termios, error) {
-	var value Termios
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
-
 // fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
 // There is no way to create a custom fcntl and to keep //sys fcntl easily,
 // Therefore, the programmer must call dup2 instead of fcntl in this case.

vendor/golang.org/x/sys/unix/syscall_aix_ppc.go

@@ -29,6 +29,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }

vendor/golang.org/x/sys/unix/syscall_aix_ppc64.go

@@ -29,6 +29,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }

vendor/golang.org/x/sys/unix/syscall_bsd.go

@@ -18,6 +18,21 @@ import (
 	"unsafe"
 )
 
+const ImplementsGetwd = true
+
+func Getwd() (string, error) {
+	var buf [PathMax]byte
+	_, err := Getcwd(buf[0:])
+	if err != nil {
+		return "", err
+	}
+	n := clen(buf[:])
+	if n < 1 {
+		return "", EINVAL
+	}
+	return string(buf[:n]), nil
+}
+
 /*
  * Wrapped
  */
@@ -237,7 +252,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 				break
 			}
 		}
-		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
 		sa.Name = string(bytes)
 		return sa, nil
 
@@ -262,7 +277,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 		}
 		return sa, nil
 	}
-	return nil, EAFNOSUPPORT
+	return anyToSockaddrGOOS(fd, rsa)
 }
 
 func Accept(fd int) (nfd int, sa Sockaddr, err error) {
@@ -272,7 +287,7 @@ func Accept(fd int) (nfd int, sa Sockaddr, err error) {
 	if err != nil {
 		return
 	}
-	if runtime.GOOS == "darwin" && len == 0 {
+	if (runtime.GOOS == "darwin" || runtime.GOOS == "ios") && len == 0 {
 		// Accepted socket has no address.
 		// This is likely due to a bug in xnu kernels,
 		// where instead of ECONNABORTED error socket
@@ -413,8 +428,6 @@ func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, err e
 	return kevent(kq, change, len(changes), event, len(events), timeout)
 }
 
-//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
-
 // sysctlmib translates name to mib number and appends any additional args.
 func sysctlmib(name string, args ...int) ([]_C_int, error) {
 	// Translate name to mib number.
@@ -512,6 +525,40 @@ func SysctlRaw(name string, args ...int) ([]byte, error) {
 	return buf[:n], nil
 }
 
+func SysctlClockinfo(name string) (*Clockinfo, error) {
+	mib, err := sysctlmib(name)
+	if err != nil {
+		return nil, err
+	}
+
+	n := uintptr(SizeofClockinfo)
+	var ci Clockinfo
+	if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil {
+		return nil, err
+	}
+	if n != SizeofClockinfo {
+		return nil, EIO
+	}
+	return &ci, nil
+}
+
+func SysctlTimeval(name string) (*Timeval, error) {
+	mib, err := sysctlmib(name)
+	if err != nil {
+		return nil, err
+	}
+
+	var tv Timeval
+	n := uintptr(unsafe.Sizeof(tv))
+	if err := sysctl(mib, (*byte)(unsafe.Pointer(&tv)), &n, nil, 0); err != nil {
+		return nil, err
+	}
+	if n != unsafe.Sizeof(tv) {
+		return nil, EIO
+	}
+	return &tv, nil
+}
+
 //sys	utimes(path string, timeval *[2]Timeval) (err error)
 
 func Utimes(path string, tv []Timeval) error {
@@ -579,8 +626,6 @@ func Futimes(fd int, tv []Timeval) error {
 	return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
 }
 
-//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
-
 //sys   poll(fds *PollFd, nfds int, timeout int) (n int, err error)
 
 func Poll(fds []PollFd, timeout int) (n int, err error) {

vendor/golang.org/x/sys/unix/syscall_darwin.1_12.go

@@ -0,0 +1,31 @@
+// Copyright 2019 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.
+
+// +build darwin,go1.12,!go1.13
+
+package unix
+
+import (
+	"unsafe"
+)
+
+const _SYS_GETDIRENTRIES64 = 344
+
+func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
+	// To implement this using libSystem we'd need syscall_syscallPtr for
+	// fdopendir. However, syscallPtr was only added in Go 1.13, so we fall
+	// back to raw syscalls for this func on Go 1.12.
+	var p unsafe.Pointer
+	if len(buf) > 0 {
+		p = unsafe.Pointer(&buf[0])
+	} else {
+		p = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(_SYS_GETDIRENTRIES64, uintptr(fd), uintptr(p), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0)
+	n = int(r0)
+	if e1 != 0 {
+		return n, errnoErr(e1)
+	}
+	return n, nil
+}

vendor/golang.org/x/sys/unix/syscall_darwin.1_13.go

@@ -0,0 +1,107 @@
+// Copyright 2019 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.
+
+// +build darwin,go1.13
+
+package unix
+
+import (
+	"unsafe"
+
+	"golang.org/x/sys/internal/unsafeheader"
+)
+
+//sys	closedir(dir uintptr) (err error)
+//sys	readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno)
+
+func fdopendir(fd int) (dir uintptr, err error) {
+	r0, _, e1 := syscall_syscallPtr(funcPC(libc_fdopendir_trampoline), uintptr(fd), 0, 0)
+	dir = uintptr(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func libc_fdopendir_trampoline()
+
+//go:cgo_import_dynamic libc_fdopendir fdopendir "/usr/lib/libSystem.B.dylib"
+
+func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
+	// Simulate Getdirentries using fdopendir/readdir_r/closedir.
+	// We store the number of entries to skip in the seek
+	// offset of fd. See issue #31368.
+	// It's not the full required semantics, but should handle the case
+	// of calling Getdirentries or ReadDirent repeatedly.
+	// It won't handle assigning the results of lseek to *basep, or handle
+	// the directory being edited underfoot.
+	skip, err := Seek(fd, 0, 1 /* SEEK_CUR */)
+	if err != nil {
+		return 0, err
+	}
+
+	// We need to duplicate the incoming file descriptor
+	// because the caller expects to retain control of it, but
+	// fdopendir expects to take control of its argument.
+	// Just Dup'ing the file descriptor is not enough, as the
+	// result shares underlying state. Use Openat to make a really
+	// new file descriptor referring to the same directory.
+	fd2, err := Openat(fd, ".", O_RDONLY, 0)
+	if err != nil {
+		return 0, err
+	}
+	d, err := fdopendir(fd2)
+	if err != nil {
+		Close(fd2)
+		return 0, err
+	}
+	defer closedir(d)
+
+	var cnt int64
+	for {
+		var entry Dirent
+		var entryp *Dirent
+		e := readdir_r(d, &entry, &entryp)
+		if e != 0 {
+			return n, errnoErr(e)
+		}
+		if entryp == nil {
+			break
+		}
+		if skip > 0 {
+			skip--
+			cnt++
+			continue
+		}
+
+		reclen := int(entry.Reclen)
+		if reclen > len(buf) {
+			// Not enough room. Return for now.
+			// The counter will let us know where we should start up again.
+			// Note: this strategy for suspending in the middle and
+			// restarting is O(n^2) in the length of the directory. Oh well.
+			break
+		}
+
+		// Copy entry into return buffer.
+		var s []byte
+		hdr := (*unsafeheader.Slice)(unsafe.Pointer(&s))
+		hdr.Data = unsafe.Pointer(&entry)
+		hdr.Cap = reclen
+		hdr.Len = reclen
+		copy(buf, s)
+
+		buf = buf[reclen:]
+		n += reclen
+		cnt++
+	}
+	// Set the seek offset of the input fd to record
+	// how many files we've already returned.
+	_, err = Seek(fd, cnt, 0 /* SEEK_SET */)
+	if err != nil {
+		return n, err
+	}
+
+	return n, nil
+}

vendor/golang.org/x/sys/unix/syscall_darwin.go

@@ -13,29 +13,11 @@
 package unix
 
 import (
-	"errors"
+	"runtime"
 	"syscall"
 	"unsafe"
 )
 
-const ImplementsGetwd = true
-
-func Getwd() (string, error) {
-	buf := make([]byte, 2048)
-	attrs, err := getAttrList(".", attrList{CommonAttr: attrCmnFullpath}, buf, 0)
-	if err == nil && len(attrs) == 1 && len(attrs[0]) >= 2 {
-		wd := string(attrs[0])
-		// Sanity check that it's an absolute path and ends
-		// in a null byte, which we then strip.
-		if wd[0] == '/' && wd[len(wd)-1] == 0 {
-			return wd[:len(wd)-1], nil
-		}
-	}
-	// If pkg/os/getwd.go gets ENOTSUP, it will fall back to the
-	// slow algorithm.
-	return "", ENOTSUP
-}
-
 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
 type SockaddrDatalink struct {
 	Len    uint8
@@ -49,6 +31,41 @@ type SockaddrDatalink struct {
 	raw    RawSockaddrDatalink
 }
 
+// SockaddrCtl implements the Sockaddr interface for AF_SYSTEM type sockets.
+type SockaddrCtl struct {
+	ID   uint32
+	Unit uint32
+	raw  RawSockaddrCtl
+}
+
+func (sa *SockaddrCtl) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	sa.raw.Sc_len = SizeofSockaddrCtl
+	sa.raw.Sc_family = AF_SYSTEM
+	sa.raw.Ss_sysaddr = AF_SYS_CONTROL
+	sa.raw.Sc_id = sa.ID
+	sa.raw.Sc_unit = sa.Unit
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrCtl, nil
+}
+
+func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	switch rsa.Addr.Family {
+	case AF_SYSTEM:
+		pp := (*RawSockaddrCtl)(unsafe.Pointer(rsa))
+		if pp.Ss_sysaddr == AF_SYS_CONTROL {
+			sa := new(SockaddrCtl)
+			sa.ID = pp.Sc_id
+			sa.Unit = pp.Sc_unit
+			return sa, nil
+		}
+	}
+	return nil, EAFNOSUPPORT
+}
+
+// Some external packages rely on SYS___SYSCTL being defined to implement their
+// own sysctl wrappers. Provide it here, even though direct syscalls are no
+// longer supported on darwin.
+const SYS___SYSCTL = SYS_SYSCTL
+
 // Translate "kern.hostname" to []_C_int{0,1,2,3}.
 func nametomib(name string) (mib []_C_int, err error) {
 	const siz = unsafe.Sizeof(mib[0])
@@ -92,11 +109,6 @@ func direntNamlen(buf []byte) (uint64, bool) {
 func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) }
 func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) }
 
-const (
-	attrBitMapCount = 5
-	attrCmnFullpath = 0x08000000
-)
-
 type attrList struct {
 	bitmapCount uint16
 	_           uint16
@@ -107,78 +119,16 @@ type attrList struct {
 	Forkattr    uint32
 }
 
-func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) {
+//sysnb pipe(p *[2]int32) (err error)
-	if len(attrBuf) < 4 {
-		return nil, errors.New("attrBuf too small")
-	}
-	attrList.bitmapCount = attrBitMapCount
-
-	var _p0 *byte
-	_p0, err = BytePtrFromString(path)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := getattrlist(_p0, unsafe.Pointer(&attrList), unsafe.Pointer(&attrBuf[0]), uintptr(len(attrBuf)), int(options)); err != nil {
-		return nil, err
-	}
-	size := *(*uint32)(unsafe.Pointer(&attrBuf[0]))
-
-	// dat is the section of attrBuf that contains valid data,
-	// without the 4 byte length header. All attribute offsets
-	// are relative to dat.
-	dat := attrBuf
-	if int(size) < len(attrBuf) {
-		dat = dat[:size]
-	}
-	dat = dat[4:] // remove length prefix
-
-	for i := uint32(0); int(i) < len(dat); {
-		header := dat[i:]
-		if len(header) < 8 {
-			return attrs, errors.New("truncated attribute header")
-		}
-		datOff := *(*int32)(unsafe.Pointer(&header[0]))
-		attrLen := *(*uint32)(unsafe.Pointer(&header[4]))
-		if datOff < 0 || uint32(datOff)+attrLen > uint32(len(dat)) {
-			return attrs, errors.New("truncated results; attrBuf too small")
-		}
-		end := uint32(datOff) + attrLen
-		attrs = append(attrs, dat[datOff:end])
-		i = end
-		if r := i % 4; r != 0 {
-			i += (4 - r)
-		}
-	}
-	return
-}
-
-//sys getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error)
-
-func SysctlClockinfo(name string) (*Clockinfo, error) {
-	mib, err := sysctlmib(name)
-	if err != nil {
-		return nil, err
-	}
-
-	n := uintptr(SizeofClockinfo)
-	var ci Clockinfo
-	if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil {
-		return nil, err
-	}
-	if n != SizeofClockinfo {
-		return nil, EIO
-	}
-	return &ci, nil
-}
-
-//sysnb pipe() (r int, w int, err error)
 
 func Pipe(p []int) (err error) {
 	if len(p) != 2 {
 		return EINVAL
 	}
-	p[0], p[1], err = pipe()
+	var x [2]int32
+	err = pipe(&x)
+	p[0] = int(x[0])
+	p[1] = int(x[1])
 	return
 }
 
@@ -333,48 +283,44 @@ func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error {
  * Wrapped
  */
 
+//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
+
 //sys	kill(pid int, signum int, posix int) (err error)
 
 func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) }
 
 //sys	ioctl(fd int, req uint, arg uintptr) (err error)
 
-// ioctl itself should not be exposed directly, but additional get/set
+func IoctlCtlInfo(fd int, ctlInfo *CtlInfo) error {
-// functions for specific types are permissible.
+	err := ioctl(fd, CTLIOCGINFO, uintptr(unsafe.Pointer(ctlInfo)))
-
+	runtime.KeepAlive(ctlInfo)
-// IoctlSetInt performs an ioctl operation which sets an integer value
+	return err
-// on fd, using the specified request number.
-func IoctlSetInt(fd int, req uint, value int) error {
-	return ioctl(fd, req, uintptr(value))
 }
 
-func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
+// IfreqMTU is struct ifreq used to get or set a network device's MTU.
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+type IfreqMTU struct {
+	Name [IFNAMSIZ]byte
+	MTU  int32
 }
 
-func ioctlSetTermios(fd int, req uint, value *Termios) error {
+// IoctlGetIfreqMTU performs the SIOCGIFMTU ioctl operation on fd to get the MTU
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+// of the network device specified by ifname.
+func IoctlGetIfreqMTU(fd int, ifname string) (*IfreqMTU, error) {
+	var ifreq IfreqMTU
+	copy(ifreq.Name[:], ifname)
+	err := ioctl(fd, SIOCGIFMTU, uintptr(unsafe.Pointer(&ifreq)))
+	return &ifreq, err
 }
 
-// IoctlGetInt performs an ioctl operation which gets an integer value
+// IoctlSetIfreqMTU performs the SIOCSIFMTU ioctl operation on fd to set the MTU
-// from fd, using the specified request number.
+// of the network device specified by ifreq.Name.
-func IoctlGetInt(fd int, req uint) (int, error) {
+func IoctlSetIfreqMTU(fd int, ifreq *IfreqMTU) error {
-	var value int
+	err := ioctl(fd, SIOCSIFMTU, uintptr(unsafe.Pointer(ifreq)))
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	runtime.KeepAlive(ifreq)
-	return value, err
+	return err
 }
 
-func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS_SYSCTL
-	var value Winsize
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
-
-func IoctlGetTermios(fd int, req uint) (*Termios, error) {
-	var value Termios
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
 
 func Uname(uname *Utsname) error {
 	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
@@ -446,6 +392,8 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	Chroot(path string) (err error)
 //sys	ClockGettime(clockid int32, time *Timespec) (err error)
 //sys	Close(fd int) (err error)
+//sys	Clonefile(src string, dst string, flags int) (err error)
+//sys	Clonefileat(srcDirfd int, src string, dstDirfd int, dst string, flags int) (err error)
 //sys	Dup(fd int) (nfd int, err error)
 //sys	Dup2(from int, to int) (err error)
 //sys	Exchangedata(path1 string, path2 string, options int) (err error)
@@ -457,10 +405,12 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
 //sys	Fchown(fd int, uid int, gid int) (err error)
 //sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys	Fclonefileat(srcDirfd int, dstDirfd int, dst string, flags int) (err error)
 //sys	Flock(fd int, how int) (err error)
 //sys	Fpathconf(fd int, name int) (val int, err error)
 //sys	Fsync(fd int) (err error)
 //sys	Ftruncate(fd int, length int64) (err error)
+//sys	Getcwd(buf []byte) (n int, err error)
 //sys	Getdtablesize() (size int)
 //sysnb	Getegid() (egid int)
 //sysnb	Geteuid() (uid int)
@@ -473,6 +423,7 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sysnb	Getrlimit(which int, lim *Rlimit) (err error)
 //sysnb	Getrusage(who int, rusage *Rusage) (err error)
 //sysnb	Getsid(pid int) (sid int, err error)
+//sysnb	Gettimeofday(tp *Timeval) (err error)
 //sysnb	Getuid() (uid int)
 //sysnb	Issetugid() (tainted bool)
 //sys	Kqueue() (fd int, err error)
@@ -497,7 +448,7 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	Revoke(path string) (err error)
 //sys	Rmdir(path string) (err error)
 //sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
-//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
+//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
 //sys	Setegid(egid int) (err error)
 //sysnb	Seteuid(euid int) (err error)
 //sysnb	Setgid(gid int) (err error)

vendor/golang.org/x/sys/unix/syscall_darwin_386.go

@@ -6,11 +6,7 @@
 
 package unix
 
-import (
+import "syscall"
-	"syscall"
-)
-
-//sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
 
 func setTimespec(sec, nsec int64) Timespec {
 	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
@@ -20,17 +16,6 @@ func setTimeval(sec, usec int64) Timeval {
 	return Timeval{Sec: int32(sec), Usec: int32(usec)}
 }
 
-//sysnb	gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
-func Gettimeofday(tv *Timeval) (err error) {
-	// The tv passed to gettimeofday must be non-nil
-	// but is otherwise unused. The answers come back
-	// in the two registers.
-	sec, usec, err := gettimeofday(tv)
-	tv.Sec = int32(sec)
-	tv.Usec = int32(usec)
-	return err
-}
-
 func SetKevent(k *Kevent_t, fd, mode, flags int) {
 	k.Ident = uint32(fd)
 	k.Filter = int16(mode)
@@ -45,21 +30,21 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
 
-// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
-// of darwin/386 the syscall is called sysctl instead of __sysctl.
-const SYS___SYSCTL = SYS_SYSCTL
-
 //sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
 //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
 //sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
-//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64
 //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
 //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
+//sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
 //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
 //sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64

vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go

@@ -6,11 +6,7 @@
 
 package unix
 
-import (
+import "syscall"
-	"syscall"
-)
-
-//sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
 
 func setTimespec(sec, nsec int64) Timespec {
 	return Timespec{Sec: sec, Nsec: nsec}
@@ -20,17 +16,6 @@ func setTimeval(sec, usec int64) Timeval {
 	return Timeval{Sec: sec, Usec: int32(usec)}
 }
 
-//sysnb	gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
-func Gettimeofday(tv *Timeval) (err error) {
-	// The tv passed to gettimeofday must be non-nil
-	// but is otherwise unused. The answers come back
-	// in the two registers.
-	sec, usec, err := gettimeofday(tv)
-	tv.Sec = sec
-	tv.Usec = usec
-	return err
-}
-
 func SetKevent(k *Kevent_t, fd, mode, flags int) {
 	k.Ident = uint64(fd)
 	k.Filter = int16(mode)
@@ -45,21 +30,21 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
 
-// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
-// of darwin/amd64 the syscall is called sysctl instead of __sysctl.
-const SYS___SYSCTL = SYS_SYSCTL
-
 //sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
 //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
 //sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
-//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64
 //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
 //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
+//sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
 //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
 //sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64

vendor/golang.org/x/sys/unix/syscall_darwin_arm.go

@@ -4,11 +4,9 @@
 
 package unix
 
-import (
+import "syscall"
-	"syscall"
-)
 
-func ptrace(request int, pid int, addr uintptr, data uintptr) error {
+func ptrace1(request int, pid int, addr uintptr, data uintptr) error {
 	return ENOTSUP
 }
 
@@ -20,17 +18,6 @@ func setTimeval(sec, usec int64) Timeval {
 	return Timeval{Sec: int32(sec), Usec: int32(usec)}
 }
 
-//sysnb	gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
-func Gettimeofday(tv *Timeval) (err error) {
-	// The tv passed to gettimeofday must be non-nil
-	// but is otherwise unused. The answers come back
-	// in the two registers.
-	sec, usec, err := gettimeofday(tv)
-	tv.Sec = int32(sec)
-	tv.Usec = int32(usec)
-	return err
-}
-
 func SetKevent(k *Kevent_t, fd, mode, flags int) {
 	k.Ident = uint32(fd)
 	k.Filter = int16(mode)
@@ -45,16 +32,16 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) // sic
 
-// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
-// of darwin/arm the syscall is called sysctl instead of __sysctl.
-const SYS___SYSCTL = SYS_SYSCTL
-
 //sys	Fstat(fd int, stat *Stat_t) (err error)
 //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
 //sys	Fstatfs(fd int, stat *Statfs_t) (err error)
@@ -62,7 +49,3 @@ const SYS___SYSCTL = SYS_SYSCTL
 //sys	Lstat(path string, stat *Stat_t) (err error)
 //sys	Stat(path string, stat *Stat_t) (err error)
 //sys	Statfs(path string, stat *Statfs_t) (err error)
-
-func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
-	return 0, ENOSYS
-}

vendor/golang.org/x/sys/unix/syscall_darwin_arm64.go

@@ -6,13 +6,7 @@
 
 package unix
 
-import (
+import "syscall"
-	"syscall"
-)
-
-func ptrace(request int, pid int, addr uintptr, data uintptr) error {
-	return ENOTSUP
-}
 
 func setTimespec(sec, nsec int64) Timespec {
 	return Timespec{Sec: sec, Nsec: nsec}
@@ -22,17 +16,6 @@ func setTimeval(sec, usec int64) Timeval {
 	return Timeval{Sec: sec, Usec: int32(usec)}
 }
 
-//sysnb	gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
-func Gettimeofday(tv *Timeval) (err error) {
-	// The tv passed to gettimeofday must be non-nil
-	// but is otherwise unused. The answers come back
-	// in the two registers.
-	sec, usec, err := gettimeofday(tv)
-	tv.Sec = sec
-	tv.Usec = usec
-	return err
-}
-
 func SetKevent(k *Kevent_t, fd, mode, flags int) {
 	k.Ident = uint64(fd)
 	k.Filter = int16(mode)
@@ -47,24 +30,21 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) // sic
 
-// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
-// of darwin/arm64 the syscall is called sysctl instead of __sysctl.
-const SYS___SYSCTL = SYS_SYSCTL
-
 //sys	Fstat(fd int, stat *Stat_t) (err error)
 //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
 //sys	Fstatfs(fd int, stat *Statfs_t) (err error)
 //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT
 //sys	Lstat(path string, stat *Stat_t) (err error)
+//sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
 //sys	Stat(path string, stat *Stat_t) (err error)
 //sys	Statfs(path string, stat *Statfs_t) (err error)
-
-func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
-	return 0, ENOSYS
-}

vendor/golang.org/x/sys/unix/syscall_darwin_libSystem.go

@@ -15,6 +15,7 @@ func syscall_syscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err
 func syscall_syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) // 32-bit only
 func syscall_rawSyscall(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
 func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
+func syscall_syscallPtr(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
 
 //go:linkname syscall_syscall syscall.syscall
 //go:linkname syscall_syscall6 syscall.syscall6
@@ -22,6 +23,7 @@ func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, er
 //go:linkname syscall_syscall9 syscall.syscall9
 //go:linkname syscall_rawSyscall syscall.rawSyscall
 //go:linkname syscall_rawSyscall6 syscall.rawSyscall6
+//go:linkname syscall_syscallPtr syscall.syscallPtr
 
 // Find the entry point for f. See comments in runtime/proc.go for the
 // function of the same name.

vendor/golang.org/x/sys/unix/syscall_dragonfly.go

@@ -12,7 +12,25 @@
 
 package unix
 
-import "unsafe"
+import (
+	"sync"
+	"unsafe"
+)
+
+// See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
+var (
+	osreldateOnce sync.Once
+	osreldate     uint32
+)
+
+// First __DragonFly_version after September 2019 ABI changes
+// http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
+const _dragonflyABIChangeVersion = 500705
+
+func supportsABI(ver uint32) bool {
+	osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
+	return osreldate >= ver
+}
 
 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
 type SockaddrDatalink struct {
@@ -29,6 +47,10 @@ type SockaddrDatalink struct {
 	raw    RawSockaddrDatalink
 }
 
+func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	return nil, EAFNOSUPPORT
+}
+
 // Translate "kern.hostname" to []_C_int{0,1,2,3}.
 func nametomib(name string) (mib []_C_int, err error) {
 	const siz = unsafe.Sizeof(mib[0])
@@ -83,6 +105,19 @@ func Pipe(p []int) (err error) {
 	return
 }
 
+//sysnb	pipe2(p *[2]_C_int, flags int) (err error)
+
+func Pipe2(p []int, flags int) error {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	var pp [2]_C_int
+	err := pipe2(&pp, flags)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return err
+}
+
 //sys	extpread(fd int, p []byte, flags int, offset int64) (n int, err error)
 func Pread(fd int, p []byte, offset int64) (n int, err error) {
 	return extpread(fd, p, 0, offset)
@@ -111,23 +146,8 @@ func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
 	return
 }
 
-const ImplementsGetwd = true
-
 //sys	Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
 
-func Getwd() (string, error) {
-	var buf [PathMax]byte
-	_, err := Getcwd(buf[0:])
-	if err != nil {
-		return "", err
-	}
-	n := clen(buf[:])
-	if n < 1 {
-		return "", EINVAL
-	}
-	return string(buf[:n]), nil
-}
-
 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 	var _p0 unsafe.Pointer
 	var bufsize uintptr
@@ -150,42 +170,7 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
 
 //sys	ioctl(fd int, req uint, arg uintptr) (err error)
 
-// ioctl itself should not be exposed directly, but additional get/set
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
-// functions for specific types are permissible.
-
-// IoctlSetInt performs an ioctl operation which sets an integer value
-// on fd, using the specified request number.
-func IoctlSetInt(fd int, req uint, value int) error {
-	return ioctl(fd, req, uintptr(value))
-}
-
-func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-func ioctlSetTermios(fd int, req uint, value *Termios) error {
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-// IoctlGetInt performs an ioctl operation which gets an integer value
-// from fd, using the specified request number.
-func IoctlGetInt(fd int, req uint) (int, error) {
-	var value int
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return value, err
-}
-
-func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
-	var value Winsize
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
-
-func IoctlGetTermios(fd int, req uint) (*Termios, error) {
-	var value Termios
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
 
 func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
 	err := sysctl(mib, old, oldlen, nil, 0)
@@ -325,7 +310,7 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	Revoke(path string) (err error)
 //sys	Rmdir(path string) (err error)
 //sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
-//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
+//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
 //sysnb	Setegid(egid int) (err error)
 //sysnb	Seteuid(euid int) (err error)
 //sysnb	Setgid(gid int) (err error)

vendor/golang.org/x/sys/unix/syscall_dragonfly_amd64.go

@@ -33,6 +33,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }

vendor/golang.org/x/sys/unix/syscall_freebsd.go

@@ -54,6 +54,10 @@ type SockaddrDatalink struct {
 	raw    RawSockaddrDatalink
 }
 
+func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	return nil, EAFNOSUPPORT
+}
+
 // Translate "kern.hostname" to []_C_int{0,1,2,3}.
 func nametomib(name string) (mib []_C_int, err error) {
 	const siz = unsafe.Sizeof(mib[0])
@@ -140,23 +144,8 @@ func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
 	return
 }
 
-const ImplementsGetwd = true
-
 //sys	Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
 
-func Getwd() (string, error) {
-	var buf [PathMax]byte
-	_, err := Getcwd(buf[0:])
-	if err != nil {
-		return "", err
-	}
-	n := clen(buf[:])
-	if n < 1 {
-		return "", EINVAL
-	}
-	return string(buf[:n]), nil
-}
-
 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 	var (
 		_p0          unsafe.Pointer
@@ -201,42 +190,7 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
 
 //sys   ioctl(fd int, req uint, arg uintptr) (err error)
 
-// ioctl itself should not be exposed directly, but additional get/set
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
-// functions for specific types are permissible.
-
-// IoctlSetInt performs an ioctl operation which sets an integer value
-// on fd, using the specified request number.
-func IoctlSetInt(fd int, req uint, value int) error {
-	return ioctl(fd, req, uintptr(value))
-}
-
-func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-func ioctlSetTermios(fd int, req uint, value *Termios) error {
-	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-// IoctlGetInt performs an ioctl operation which gets an integer value
-// from fd, using the specified request number.
-func IoctlGetInt(fd int, req uint) (int, error) {
-	var value int
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return value, err
-}
-
-func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
-	var value Winsize
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
-
-func IoctlGetTermios(fd int, req uint) (*Termios, error) {
-	var value Termios
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
-	return &value, err
-}
 
 func Uname(uname *Utsname) error {
 	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
@@ -497,8 +451,12 @@ func convertFromDirents11(buf []byte, old []byte) int {
 	dstPos := 0
 	srcPos := 0
 	for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) {
-		dstDirent := (*Dirent)(unsafe.Pointer(&buf[dstPos]))
+		var dstDirent Dirent
-		srcDirent := (*dirent_freebsd11)(unsafe.Pointer(&old[srcPos]))
+		var srcDirent dirent_freebsd11
+
+		// If multiple direntries are written, sometimes when we reach the final one,
+		// we may have cap of old less than size of dirent_freebsd11.
+		copy((*[unsafe.Sizeof(srcDirent)]byte)(unsafe.Pointer(&srcDirent))[:], old[srcPos:])
 
 		reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8)
 		if dstPos+reclen > len(buf) {
@@ -514,6 +472,7 @@ func convertFromDirents11(buf []byte, old []byte) int {
 		dstDirent.Pad1 = 0
 
 		copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen])
+		copy(buf[dstPos:], (*[unsafe.Sizeof(dstDirent)]byte)(unsafe.Pointer(&dstDirent))[:])
 		padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen]
 		for i := range padding {
 			padding[i] = 0
@@ -551,20 +510,10 @@ func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) {
 	return ptrace(PTRACE_GETFPREGS, pid, uintptr(unsafe.Pointer(fpregsout)), 0)
 }
 
-func PtraceGetFsBase(pid int, fsbase *int64) (err error) {
-	return ptrace(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
-}
-
 func PtraceGetRegs(pid int, regsout *Reg) (err error) {
 	return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0)
 }
 
-func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
-	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint(countin)}
-	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
-	return int(ioDesc.Len), err
-}
-
 func PtraceLwpEvents(pid int, enable int) (err error) {
 	return ptrace(PTRACE_LWPEVENTS, pid, 0, enable)
 }
@@ -688,7 +637,7 @@ func PtraceSingleStep(pid int) (err error) {
 //sys	Revoke(path string) (err error)
 //sys	Rmdir(path string) (err error)
 //sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
-//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
+//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
 //sysnb	Setegid(egid int) (err error)
 //sysnb	Seteuid(euid int) (err error)
 //sysnb	Setgid(gid int) (err error)

vendor/golang.org/x/sys/unix/syscall_freebsd_386.go

@@ -33,6 +33,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
@@ -50,3 +54,13 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+func PtraceGetFsBase(pid int, fsbase *int64) (err error) {
+	return ptrace(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
+}
+
+func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
+	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint32(countin)}
+	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
+	return int(ioDesc.Len), err
+}

vendor/golang.org/x/sys/unix/syscall_freebsd_amd64.go

@@ -33,6 +33,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
@@ -50,3 +54,13 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+func PtraceGetFsBase(pid int, fsbase *int64) (err error) {
+	return ptrace(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
+}
+
+func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
+	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint64(countin)}
+	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
+	return int(ioDesc.Len), err
+}

vendor/golang.org/x/sys/unix/syscall_freebsd_arm.go

@@ -33,6 +33,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
@@ -50,3 +54,9 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
+	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint32(countin)}
+	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
+	return int(ioDesc.Len), err
+}

vendor/golang.org/x/sys/unix/syscall_freebsd_arm64.go

@@ -33,6 +33,10 @@ func (msghdr *Msghdr) SetControllen(length int) {
 	msghdr.Controllen = uint32(length)
 }
 
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
 func (cmsg *Cmsghdr) SetLen(length int) {
 	cmsg.Len = uint32(length)
 }
@@ -50,3 +54,9 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 }
 
 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
+	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint64(countin)}
+	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
+	return int(ioDesc.Len), err
+}