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unix: replace "mksyscall.pl" script with a Go program

Browse Source 
Port mksyscall.pl Perl script to mksyscall.go.
mkall scripts are modified to run mksyscall.go.
Running ./mkall.sh does not generate any git diff besides
the command name in comments of generated files.

Updates golang/go#27779

Change-Id: I8c6eb852e6821f4a91dc03cc042d8d343f1bcf66
Reviewed-on: https://go-review.googlesource.com/c/150217
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Visweswara R
2018-11-19 17:31:13 +05:30
committed by Tobias Klauser
parent 62eef0e2fa
commit 4ed8d59d0b
31 changed files with 611 additions and 403 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
unix/linux/mkall.go
View File

@@ -202,22 +202,32 @@ func makeCommand(name string, args ...string) *exec.Cmd {
return cmd
}
// Set GOARCH for target and build environments.
func (t *target) setTargetBuildArch(cmd *exec.Cmd) {
// Set GOARCH_TARGET so command knows what GOARCH is..
cmd.Env = append(os.Environ(), "GOARCH_TARGET="+t.GoArch)
// Set GOARCH to host arch for command, so it can run natively.
for i, s := range cmd.Env {
if strings.HasPrefix(s, "GOARCH=") {
cmd.Env[i] = "GOARCH=" + BuildArch
}
}
}
// Runs the command, pipes output to a formatter, pipes that to an output file.
func (t *target) commandFormatOutput(formatter string, outputFile string,
name string, args ...string) (err error) {
mainCmd := makeCommand(name, args...)
if name == "mksyscall" {
args = append([]string{"run", "mksyscall.go"}, args...)
mainCmd = makeCommand("go", args...)
t.setTargetBuildArch(mainCmd)
}
fmtCmd := makeCommand(formatter)
if formatter == "mkpost" {
fmtCmd = makeCommand("go", "run", "mkpost.go")
// Set GOARCH_TARGET so mkpost knows what GOARCH is..
fmtCmd.Env = append(os.Environ(), "GOARCH_TARGET="+t.GoArch)
// Set GOARCH to host arch for mkpost, so it can run natively.
for i, s := range fmtCmd.Env {
if strings.HasPrefix(s, "GOARCH=") {
fmtCmd.Env[i] = "GOARCH=" + BuildArch
}
}
t.setTargetBuildArch(fmtCmd)
}
// mainCmd | fmtCmd > outputFile
@@ -472,7 +482,7 @@ func (t *target) makeZSyscallFile() error {
args := append(t.mksyscallFlags(), "-tags", "linux,"+t.GoArch,
"syscall_linux.go", archSyscallFile)
return t.commandFormatOutput("gofmt", zsyscallFile, "./mksyscall.pl", args...)
return t.commandFormatOutput("gofmt", zsyscallFile, "mksyscall", args...)
}
// makes the zerrors_linux_$GOARCH.go file

22
unix/mkall.sh
View File

@@ -10,7 +10,7 @@
GOOSARCH="${GOOS}_${GOARCH}"
# defaults
mksyscall="./mksyscall.pl"
mksyscall="go run mksyscall.go"
mkerrors="./mkerrors.sh"
zerrors="zerrors_$GOOSARCH.go"
mksysctl=""
@@ -71,7 +71,7 @@ aix_ppc64)
;;
darwin_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32"
mksyscall="go run mksyscall.go -l32"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
@@ -92,13 +92,13 @@ darwin_arm64)
;;
dragonfly_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -dragonfly"
mksyscall="go run mksyscall.go -dragonfly"
mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32"
mksyscall="go run mksyscall.go -l32"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
@@ -109,7 +109,7 @@ freebsd_amd64)
;;
freebsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -arm"
mksyscall="go run mksyscall.go -l32 -arm"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
@@ -124,19 +124,19 @@ linux_sparc64)
;;
netbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -netbsd"
mksyscall="go run mksyscall.go -l32 -netbsd"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -netbsd"
mksyscall="go run mksyscall.go -netbsd"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -netbsd -arm"
mksyscall="go run mksyscall.go -l32 -netbsd -arm"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
@@ -144,21 +144,21 @@ netbsd_arm)
;;
openbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -openbsd"
mksyscall="go run mksyscall.go -l32 -openbsd"
mksysctl="./mksysctl_openbsd.pl"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -openbsd"
mksyscall="go run mksyscall.go -openbsd"
mksysctl="./mksysctl_openbsd.pl"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -openbsd -arm"
mksyscall="go run mksyscall.go -l32 -openbsd -arm"
mksysctl="./mksysctl_openbsd.pl"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
# Let the type of C char be signed for making the bare syscall

367
unix/mksyscall.go Normal file
View File

@@ -0,0 +1,367 @@
// 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")
goarch := os.Getenv("GOARCH_TARGET")
if goarch == "" {
goarch = os.Getenv("GOARCH")
}
// Check that we are using the new build system if we should
if goos == "linux" && goarch != "sparc64" {
if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
fmt.Fprintf(os.Stderr, "In the new 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"
}
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]
// 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" && 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)
}
// 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 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
`

341
unix/mksyscall.pl
View File

@@ -1,341 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 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.
# 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.
use strict;
my $cmdline = "mksyscall.pl " . join(' ', @ARGV);
my $errors = 0;
my $_32bit = "";
my $plan9 = 0;
my $openbsd = 0;
my $netbsd = 0;
my $dragonfly = 0;
my $arm = 0; # 64-bit value should use (even, odd)-pair
my $tags = ""; # build tags
if($ARGV[0] eq "-b32") {
$_32bit = "big-endian";
shift;
} elsif($ARGV[0] eq "-l32") {
$_32bit = "little-endian";
shift;
}
if($ARGV[0] eq "-plan9") {
$plan9 = 1;
shift;
}
if($ARGV[0] eq "-openbsd") {
$openbsd = 1;
shift;
}
if($ARGV[0] eq "-netbsd") {
$netbsd = 1;
shift;
}
if($ARGV[0] eq "-dragonfly") {
$dragonfly = 1;
shift;
}
if($ARGV[0] eq "-arm") {
$arm = 1;
shift;
}
if($ARGV[0] eq "-tags") {
shift;
$tags = $ARGV[0];
shift;
}
if($ARGV[0] =~ /^-/) {
print STDERR "usage: mksyscall.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
exit 1;
}
# Check that we are using the new build system if we should
if($ENV{'GOOS'} eq "linux" && $ENV{'GOARCH'} ne "sparc64") {
if($ENV{'GOLANG_SYS_BUILD'} ne "docker") {
print STDERR "In the new build system, mksyscall should not be called directly.\n";
print STDERR "See README.md\n";
exit 1;
}
}
sub parseparamlist($) {
my ($list) = @_;
$list =~ s/^\s*//;
$list =~ s/\s*$//;
if($list eq "") {
return ();
}
return split(/\s*,\s*/, $list);
}
sub parseparam($) {
my ($p) = @_;
if($p !~ /^(\S*) (\S*)$/) {
print STDERR "$ARGV:$.: malformed parameter: $p\n";
$errors = 1;
return ("xx", "int");
}
return ($1, $2);
}
my $text = "";
while(<>) {
chomp;
s/\s+/ /g;
s/^\s+//;
s/\s+$//;
my $nonblock = /^\/\/sysnb /;
next if !/^\/\/sys / && !$nonblock;
# 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.
if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$/) {
print STDERR "$ARGV:$.: malformed //sys declaration\n";
$errors = 1;
next;
}
my ($func, $in, $out, $sysname) = ($2, $3, $4, $5);
# Split argument lists on comma.
my @in = parseparamlist($in);
my @out = parseparamlist($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";
# Go function header.
my $out_decl = @out ? sprintf(" (%s)", join(', ', @out)) : "";
$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out_decl;
# Check if err return available
my $errvar = "";
foreach my $p (@out) {
my ($name, $type) = parseparam($p);
if($type eq "error") {
$errvar = $name;
last;
}
}
# Prepare arguments to Syscall.
my @args = ();
my $n = 0;
foreach my $p (@in) {
my ($name, $type) = parseparam($p);
if($type =~ /^\*/) {
push @args, "uintptr(unsafe.Pointer($name))";
} elsif($type eq "string" && $errvar ne "") {
$text .= "\tvar _p$n *byte\n";
$text .= "\t_p$n, $errvar = BytePtrFromString($name)\n";
$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
$n++;
} elsif($type eq "string") {
print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
$text .= "\tvar _p$n *byte\n";
$text .= "\t_p$n, _ = BytePtrFromString($name)\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
$n++;
} elsif($type =~ /^\[\](.*)/) {
# 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).
$text .= "\tvar _p$n unsafe.Pointer\n";
$text .= "\tif len($name) > 0 {\n\t\t_p$n = unsafe.Pointer(\&${name}[0])\n\t}";
$text .= " else {\n\t\t_p$n = unsafe.Pointer(&_zero)\n\t}";
$text .= "\n";
push @args, "uintptr(_p$n)", "uintptr(len($name))";
$n++;
} elsif($type eq "int64" && ($openbsd || $netbsd)) {
push @args, "0";
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} elsif($_32bit eq "little-endian") {
push @args, "uintptr($name)", "uintptr($name>>32)";
} else {
push @args, "uintptr($name)";
}
} elsif($type eq "int64" && $dragonfly) {
if ($func !~ /^extp(read|write)/i) {
push @args, "0";
}
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} elsif($_32bit eq "little-endian") {
push @args, "uintptr($name)", "uintptr($name>>32)";
} else {
push @args, "uintptr($name)";
}
} elsif($type eq "int64" && $_32bit ne "") {
if(@args % 2 && $arm) {
# arm abi specifies 64-bit argument uses
# (even, odd) pair
push @args, "0"
}
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} else {
push @args, "uintptr($name)", "uintptr($name>>32)";
}
} else {
push @args, "uintptr($name)";
}
}
# Determine which form to use; pad args with zeros.
my $asm = "Syscall";
if ($nonblock) {
if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
$asm = "RawSyscallNoError";
} else {
$asm = "RawSyscall";
}
} else {
if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
$asm = "SyscallNoError";
}
}
if(@args <= 3) {
while(@args < 3) {
push @args, "0";
}
} elsif(@args <= 6) {
$asm .= "6";
while(@args < 6) {
push @args, "0";
}
} elsif(@args <= 9) {
$asm .= "9";
while(@args < 9) {
push @args, "0";
}
} else {
print STDERR "$ARGV:$.: too many arguments to system call\n";
}
# System call number.
if($sysname eq "") {
$sysname = "SYS_$func";
$sysname =~ s/([a-z])([A-Z])/${1}_$2/g; # turn FooBar into Foo_Bar
$sysname =~ y/a-z/A-Z/;
}
# Actual call.
my $args = join(', ', @args);
my $call = "$asm($sysname, $args)";
# Assign return values.
my $body = "";
my @ret = ("_", "_", "_");
my $do_errno = 0;
for(my $i=0; $i<@out; $i++) {
my $p = $out[$i];
my ($name, $type) = parseparam($p);
my $reg = "";
if($name eq "err" && !$plan9) {
$reg = "e1";
$ret[2] = $reg;
$do_errno = 1;
} elsif($name eq "err" && $plan9) {
$ret[0] = "r0";
$ret[2] = "e1";
next;
} else {
$reg = sprintf("r%d", $i);
$ret[$i] = $reg;
}
if($type eq "bool") {
$reg = "$reg != 0";
}
if($type eq "int64" && $_32bit ne "") {
# 64-bit number in r1:r0 or r0:r1.
if($i+2 > @out) {
print STDERR "$ARGV:$.: not enough registers for int64 return\n";
}
if($_32bit eq "big-endian") {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
} else {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
}
$ret[$i] = sprintf("r%d", $i);
$ret[$i+1] = sprintf("r%d", $i+1);
}
if($reg ne "e1" || $plan9) {
$body .= "\t$name = $type($reg)\n";
}
}
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
# raw syscall without error on Linux, see golang.org/issue/22924
$text .= "\t$ret[0], $ret[1] := $call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
}
}
$text .= $body;
if ($plan9 && $ret[2] eq "e1") {
$text .= "\tif int32(r0) == -1 {\n";
$text .= "\t\terr = e1\n";
$text .= "\t}\n";
} elsif ($do_errno) {
$text .= "\tif e1 != 0 {\n";
$text .= "\t\terr = errnoErr(e1)\n";
$text .= "\t}\n";
}
$text .= "\treturn\n";
$text .= "}\n\n";
}
chomp $text;
chomp $text;
if($errors) {
exit 1;
}
print <<EOF;
// $cmdline
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $tags
package unix
import (
"syscall"
"unsafe"
)
var _ syscall.Errno
$text
EOF
exit 0;

2
unix/zsyscall_darwin_386.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -tags darwin,386 syscall_bsd.go syscall_darwin.go syscall_darwin_386.go
// go run mksyscall.go -l32 -tags darwin,386 syscall_bsd.go syscall_darwin.go syscall_darwin_386.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build darwin,386

2
unix/zsyscall_darwin_amd64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags darwin,amd64 syscall_bsd.go syscall_darwin.go syscall_darwin_amd64.go
// go run mksyscall.go -tags darwin,amd64 syscall_bsd.go syscall_darwin.go syscall_darwin_amd64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build darwin,amd64

2
unix/zsyscall_darwin_arm.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -tags darwin,arm syscall_bsd.go syscall_darwin.go syscall_darwin_arm.go
// go run mksyscall.go -l32 -tags darwin,arm syscall_bsd.go syscall_darwin.go syscall_darwin_arm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build darwin,arm

2
unix/zsyscall_darwin_arm64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags darwin,arm64 syscall_bsd.go syscall_darwin.go syscall_darwin_arm64.go
// go run mksyscall.go -tags darwin,arm64 syscall_bsd.go syscall_darwin.go syscall_darwin_arm64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build darwin,arm64

2
unix/zsyscall_dragonfly_amd64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -dragonfly -tags dragonfly,amd64 syscall_bsd.go syscall_dragonfly.go syscall_dragonfly_amd64.go
// go run mksyscall.go -dragonfly -tags dragonfly,amd64 syscall_bsd.go syscall_dragonfly.go syscall_dragonfly_amd64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build dragonfly,amd64

2
unix/zsyscall_freebsd_386.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -tags freebsd,386 syscall_bsd.go syscall_freebsd.go syscall_freebsd_386.go
// go run mksyscall.go -l32 -tags freebsd,386 syscall_bsd.go syscall_freebsd.go syscall_freebsd_386.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build freebsd,386

2
unix/zsyscall_freebsd_amd64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags freebsd,amd64 syscall_bsd.go syscall_freebsd.go syscall_freebsd_amd64.go
// go run mksyscall.go -tags freebsd,amd64 syscall_bsd.go syscall_freebsd.go syscall_freebsd_amd64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build freebsd,amd64

2
unix/zsyscall_freebsd_arm.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -arm -tags freebsd,arm syscall_bsd.go syscall_freebsd.go syscall_freebsd_arm.go
// go run mksyscall.go -l32 -arm -tags freebsd,arm syscall_bsd.go syscall_freebsd.go syscall_freebsd_arm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build freebsd,arm

2
unix/zsyscall_linux_386.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -tags linux,386 syscall_linux.go syscall_linux_386.go
// go run mksyscall.go -l32 -tags linux,386 syscall_linux.go syscall_linux_386.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,386

2
unix/zsyscall_linux_amd64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,amd64 syscall_linux.go syscall_linux_amd64.go
// go run mksyscall.go -tags linux,amd64 syscall_linux.go syscall_linux_amd64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,amd64

2
unix/zsyscall_linux_arm.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -arm -tags linux,arm syscall_linux.go syscall_linux_arm.go
// go run mksyscall.go -l32 -arm -tags linux,arm syscall_linux.go syscall_linux_arm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,arm

2
unix/zsyscall_linux_arm64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,arm64 syscall_linux.go syscall_linux_arm64.go
// go run mksyscall.go -tags linux,arm64 syscall_linux.go syscall_linux_arm64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,arm64

2
unix/zsyscall_linux_mips.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -b32 -arm -tags linux,mips syscall_linux.go syscall_linux_mipsx.go
// go run mksyscall.go -b32 -arm -tags linux,mips syscall_linux.go syscall_linux_mipsx.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,mips

2
unix/zsyscall_linux_mips64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,mips64 syscall_linux.go syscall_linux_mips64x.go
// go run mksyscall.go -tags linux,mips64 syscall_linux.go syscall_linux_mips64x.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,mips64

2
unix/zsyscall_linux_mips64le.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,mips64le syscall_linux.go syscall_linux_mips64x.go
// go run mksyscall.go -tags linux,mips64le syscall_linux.go syscall_linux_mips64x.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,mips64le

2
unix/zsyscall_linux_mipsle.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -arm -tags linux,mipsle syscall_linux.go syscall_linux_mipsx.go
// go run mksyscall.go -l32 -arm -tags linux,mipsle syscall_linux.go syscall_linux_mipsx.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,mipsle

2
unix/zsyscall_linux_ppc64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,ppc64 syscall_linux.go syscall_linux_ppc64x.go
// go run mksyscall.go -tags linux,ppc64 syscall_linux.go syscall_linux_ppc64x.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,ppc64

2
unix/zsyscall_linux_ppc64le.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,ppc64le syscall_linux.go syscall_linux_ppc64x.go
// go run mksyscall.go -tags linux,ppc64le syscall_linux.go syscall_linux_ppc64x.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,ppc64le

2
unix/zsyscall_linux_riscv64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,riscv64 syscall_linux.go syscall_linux_riscv64.go
// go run mksyscall.go -tags linux,riscv64 syscall_linux.go syscall_linux_riscv64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,riscv64

2
unix/zsyscall_linux_s390x.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,s390x syscall_linux.go syscall_linux_s390x.go
// go run mksyscall.go -tags linux,s390x syscall_linux.go syscall_linux_s390x.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,s390x

204
unix/zsyscall_linux_sparc64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -tags linux,sparc64 syscall_linux.go syscall_linux_sparc64.go
// go run mksyscall.go -tags linux,sparc64 syscall_linux.go syscall_linux_sparc64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build linux,sparc64
@@ -417,6 +417,16 @@ func Chroot(path string) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ClockGetres(clockid int32, res *Timespec) (err error) {
_, _, e1 := Syscall(SYS_CLOCK_GETRES, uintptr(clockid), uintptr(unsafe.Pointer(res)), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ClockGettime(clockid int32, time *Timespec) (err error) {
_, _, e1 := Syscall(SYS_CLOCK_GETTIME, uintptr(clockid), uintptr(unsafe.Pointer(time)), 0)
if e1 != 0 {
@@ -448,6 +458,21 @@ func CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags in
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func DeleteModule(name string, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_DELETE_MODULE, uintptr(unsafe.Pointer(_p0)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), 0, 0)
fd = int(r0)
@@ -508,21 +533,6 @@ func Exit(code int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Faccessat(dirfd int, path string, mode uint32, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_FACCESSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fallocate(fd int, mode uint32, off int64, len int64) (err error) {
_, _, e1 := Syscall6(SYS_FALLOCATE, uintptr(fd), uintptr(mode), uintptr(off), uintptr(len), 0, 0)
if e1 != 0 {
@@ -589,6 +599,60 @@ func Fdatasync(fd int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(attr)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(dest) > 0 {
_p1 = unsafe.Pointer(&dest[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_FGETXATTR, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(dest)), 0, 0)
sz = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func FinitModule(fd int, params string, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(params)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_FINIT_MODULE, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(flags))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Flistxattr(fd int, dest []byte) (sz int, err error) {
var _p0 unsafe.Pointer
if len(dest) > 0 {
_p0 = unsafe.Pointer(&dest[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FLISTXATTR, uintptr(fd), uintptr(_p0), uintptr(len(dest)))
sz = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Flock(fd int, how int) (err error) {
_, _, e1 := Syscall(SYS_FLOCK, uintptr(fd), uintptr(how), 0)
if e1 != 0 {
@@ -599,6 +663,42 @@ func Flock(fd int, how int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fremovexattr(fd int, attr string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(attr)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_FREMOVEXATTR, uintptr(fd), uintptr(unsafe.Pointer(_p0)), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fsetxattr(fd int, attr string, dest []byte, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(attr)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(dest) > 0 {
_p1 = unsafe.Pointer(&dest[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS_FSETXATTR, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(dest)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fsync(fd int) (err error) {
_, _, e1 := Syscall(SYS_FSYNC, uintptr(fd), 0, 0)
if e1 != 0 {
@@ -737,6 +837,27 @@ func Getxattr(path string, attr string, dest []byte) (sz int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InitModule(moduleImage []byte, params string) (err error) {
var _p0 unsafe.Pointer
if len(moduleImage) > 0 {
_p0 = unsafe.Pointer(&moduleImage[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
var _p1 *byte
_p1, err = BytePtrFromString(params)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_INIT_MODULE, uintptr(_p0), uintptr(len(moduleImage)), uintptr(unsafe.Pointer(_p1)))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InotifyAddWatch(fd int, pathname string, mask uint32) (watchdesc int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)
@@ -919,6 +1040,22 @@ func Lsetxattr(path string, attr string, data []byte, flags int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func MemfdCreate(name string, flags int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_MEMFD_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(flags), 0)
fd = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Mkdirat(dirfd int, path string, mode uint32) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
@@ -1078,6 +1215,26 @@ func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err e
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags uint) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(oldpath)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(newpath)
if err != nil {
return
}
_, _, e1 := Syscall6(SYS_RENAMEAT2, uintptr(olddirfd), uintptr(unsafe.Pointer(_p0)), uintptr(newdirfd), uintptr(unsafe.Pointer(_p1)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func RequestKey(keyType string, description string, callback string, destRingid int) (id int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(keyType)
@@ -1489,6 +1646,21 @@ func Munlockall() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func faccessat(dirfd int, path string, mode uint32) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_FACCESSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
var _p0 unsafe.Pointer
if len(events) > 0 {

2
unix/zsyscall_netbsd_386.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -netbsd -tags netbsd,386 syscall_bsd.go syscall_netbsd.go syscall_netbsd_386.go
// go run mksyscall.go -l32 -netbsd -tags netbsd,386 syscall_bsd.go syscall_netbsd.go syscall_netbsd_386.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build netbsd,386

2
unix/zsyscall_netbsd_amd64.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -netbsd -tags netbsd,amd64 syscall_bsd.go syscall_netbsd.go syscall_netbsd_amd64.go
// go run mksyscall.go -netbsd -tags netbsd,amd64 syscall_bsd.go syscall_netbsd.go syscall_netbsd_amd64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build netbsd,amd64

2
unix/zsyscall_netbsd_arm.go
View File

@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -netbsd -arm -tags netbsd,arm syscall_bsd.go syscall_netbsd.go syscall_netbsd_arm.go
// go run mksyscall.go -l32 -netbsd -arm -tags netbsd,arm syscall_bsd.go syscall_netbsd.go syscall_netbsd_arm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build netbsd,arm

2
unix/zsyscall_openbsd_386.go
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@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -openbsd -tags openbsd,386 syscall_bsd.go syscall_openbsd.go syscall_openbsd_386.go
// go run mksyscall.go -l32 -openbsd -tags openbsd,386 syscall_bsd.go syscall_openbsd.go syscall_openbsd_386.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build openbsd,386

2
unix/zsyscall_openbsd_amd64.go
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@@ -1,4 +1,4 @@
// mksyscall.pl -openbsd -tags openbsd,amd64 syscall_bsd.go syscall_openbsd.go syscall_openbsd_amd64.go
// go run mksyscall.go -openbsd -tags openbsd,amd64 syscall_bsd.go syscall_openbsd.go syscall_openbsd_amd64.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build openbsd,amd64

2
unix/zsyscall_openbsd_arm.go
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@@ -1,4 +1,4 @@
// mksyscall.pl -l32 -openbsd -arm -tags openbsd,arm syscall_bsd.go syscall_openbsd.go syscall_openbsd_arm.go
// go run mksyscall.go -l32 -openbsd -arm -tags openbsd,arm syscall_bsd.go syscall_openbsd.go syscall_openbsd_arm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build openbsd,arm