vendor cleanup: remove unused,non-go and test files

This commit is contained in:
Madhu Rajanna
2019-01-16 00:05:52 +05:30
parent 52cf4aa902
commit b10ba188e7
15421 changed files with 17 additions and 4208853 deletions

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_obj/
unix.test

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# Building `sys/unix`
The sys/unix package provides access to the raw system call interface of the
underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
Porting Go to a new architecture/OS combination or adding syscalls, types, or
constants to an existing architecture/OS pair requires some manual effort;
however, there are tools that automate much of the process.
## Build Systems
There are currently two ways we generate the necessary files. We are currently
migrating the build system to use containers so the builds are reproducible.
This is being done on an OS-by-OS basis. Please update this documentation as
components of the build system change.
### Old Build System (currently for `GOOS != "Linux" || GOARCH == "sparc64"`)
The old build system generates the Go files based on the C header files
present on your system. This means that files
for a given GOOS/GOARCH pair must be generated on a system with that OS and
architecture. This also means that the generated code can differ from system
to system, based on differences in the header files.
To avoid this, if you are using the old build system, only generate the Go
files on an installation with unmodified header files. It is also important to
keep track of which version of the OS the files were generated from (ex.
Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
and have each OS upgrade correspond to a single change.
To build the files for your current OS and architecture, make sure GOOS and
GOARCH are set correctly and run `mkall.sh`. This will generate the files for
your specific system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, perl, go
### New Build System (currently for `GOOS == "Linux" && GOARCH != "sparc64"`)
The new build system uses a Docker container to generate the go files directly
from source checkouts of the kernel and various system libraries. This means
that on any platform that supports Docker, all the files using the new build
system can be generated at once, and generated files will not change based on
what the person running the scripts has installed on their computer.
The OS specific files for the new build system are located in the `${GOOS}`
directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
the kernel or system library updates, modify the Dockerfile at
`${GOOS}/Dockerfile` to checkout the new release of the source.
To build all the files under the new build system, you must be on an amd64/Linux
system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
then generate all of the files for all of the GOOS/GOARCH pairs in the new build
system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, perl, go, docker
## Component files
This section describes the various files used in the code generation process.
It also contains instructions on how to modify these files to add a new
architecture/OS or to add additional syscalls, types, or constants. Note that
if you are using the new build system, the scripts cannot be called normally.
They must be called from within the docker container.
### asm files
The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
call dispatch. There are three entry points:
```
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
```
The first and second are the standard ones; they differ only in how many
arguments can be passed to the kernel. The third is for low-level use by the
ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
let it know that a system call is running.
When porting Go to an new architecture/OS, this file must be implemented for
each GOOS/GOARCH pair.
### mksysnum
Mksysnum is a script located at `${GOOS}/mksysnum.pl` (or `mksysnum_${GOOS}.pl`
for the old system). This script takes in a list of header files containing the
syscall number declarations and parses them to produce the corresponding list of
Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
constants.
Adding new syscall numbers is mostly done by running the build on a sufficiently
new installation of the target OS (or updating the source checkouts for the
new build system). However, depending on the OS, you make need to update the
parsing in mksysnum.
### mksyscall.pl
The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
hand-written Go files which implement system calls (for unix, the specific OS,
or the specific OS/Architecture pair respectively) that need special handling
and list `//sys` comments giving prototypes for ones that can be generated.
The mksyscall.pl script takes the `//sys` and `//sysnb` comments and converts
them into syscalls. This requires the name of the prototype in the comment to
match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
prototype can be exported (capitalized) or not.
Adding a new syscall often just requires adding a new `//sys` function prototype
with the desired arguments and a capitalized name so it is exported. However, if
you want the interface to the syscall to be different, often one will make an
unexported `//sys` prototype, an then write a custom wrapper in
`syscall_${GOOS}.go`.
### types files
For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
`types_${GOOS}.go` on the old system). This file includes standard C headers and
creates Go type aliases to the corresponding C types. The file is then fed
through godef to get the Go compatible definitions. Finally, the generated code
is fed though mkpost.go to format the code correctly and remove any hidden or
private identifiers. This cleaned-up code is written to
`ztypes_${GOOS}_${GOARCH}.go`.
The hardest part about preparing this file is figuring out which headers to
include and which symbols need to be `#define`d to get the actual data
structures that pass through to the kernel system calls. Some C libraries
preset alternate versions for binary compatibility and translate them on the
way in and out of system calls, but there is almost always a `#define` that can
get the real ones.
See `types_darwin.go` and `linux/types.go` for examples.
To add a new type, add in the necessary include statement at the top of the
file (if it is not already there) and add in a type alias line. Note that if
your type is significantly different on different architectures, you may need
some `#if/#elif` macros in your include statements.
### mkerrors.sh
This script is used to generate the system's various constants. This doesn't
just include the error numbers and error strings, but also the signal numbers
an a wide variety of miscellaneous constants. The constants come from the list
of include files in the `includes_${uname}` variable. A regex then picks out
the desired `#define` statements, and generates the corresponding Go constants.
The error numbers and strings are generated from `#include <errno.h>`, and the
signal numbers and strings are generated from `#include <signal.h>`. All of
these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
`_errors.c`, which prints out all the constants.
To add a constant, add the header that includes it to the appropriate variable.
Then, edit the regex (if necessary) to match the desired constant. Avoid making
the regex too broad to avoid matching unintended constants.
## Generated files
### `zerror_${GOOS}_${GOARCH}.go`
A file containing all of the system's generated error numbers, error strings,
signal numbers, and constants. Generated by `mkerrors.sh` (see above).
### `zsyscall_${GOOS}_${GOARCH}.go`
A file containing all the generated syscalls for a specific GOOS and GOARCH.
Generated by `mksyscall.pl` (see above).
### `zsysnum_${GOOS}_${GOARCH}.go`
A list of numeric constants for all the syscall number of the specific GOOS
and GOARCH. Generated by mksysnum (see above).
### `ztypes_${GOOS}_${GOARCH}.go`
A file containing Go types for passing into (or returning from) syscalls.
Generated by godefs and the types file (see above).

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// Copyright 2012 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
package unix_test
import (
"bytes"
"go/build"
"net"
"os"
"testing"
"golang.org/x/sys/unix"
)
// TestSCMCredentials tests the sending and receiving of credentials
// (PID, UID, GID) in an ancillary message between two UNIX
// sockets. The SO_PASSCRED socket option is enabled on the sending
// socket for this to work.
func TestSCMCredentials(t *testing.T) {
socketTypeTests := []struct {
socketType int
dataLen int
}{
{
unix.SOCK_STREAM,
1,
}, {
unix.SOCK_DGRAM,
0,
},
}
for _, tt := range socketTypeTests {
if tt.socketType == unix.SOCK_DGRAM && !atLeast1p10() {
t.Log("skipping DGRAM test on pre-1.10")
continue
}
fds, err := unix.Socketpair(unix.AF_LOCAL, tt.socketType, 0)
if err != nil {
t.Fatalf("Socketpair: %v", err)
}
defer unix.Close(fds[0])
defer unix.Close(fds[1])
err = unix.SetsockoptInt(fds[0], unix.SOL_SOCKET, unix.SO_PASSCRED, 1)
if err != nil {
t.Fatalf("SetsockoptInt: %v", err)
}
srvFile := os.NewFile(uintptr(fds[0]), "server")
defer srvFile.Close()
srv, err := net.FileConn(srvFile)
if err != nil {
t.Errorf("FileConn: %v", err)
return
}
defer srv.Close()
cliFile := os.NewFile(uintptr(fds[1]), "client")
defer cliFile.Close()
cli, err := net.FileConn(cliFile)
if err != nil {
t.Errorf("FileConn: %v", err)
return
}
defer cli.Close()
var ucred unix.Ucred
ucred.Pid = int32(os.Getpid())
ucred.Uid = uint32(os.Getuid())
ucred.Gid = uint32(os.Getgid())
oob := unix.UnixCredentials(&ucred)
// On SOCK_STREAM, this is internally going to send a dummy byte
n, oobn, err := cli.(*net.UnixConn).WriteMsgUnix(nil, oob, nil)
if err != nil {
t.Fatalf("WriteMsgUnix: %v", err)
}
if n != 0 {
t.Fatalf("WriteMsgUnix n = %d, want 0", n)
}
if oobn != len(oob) {
t.Fatalf("WriteMsgUnix oobn = %d, want %d", oobn, len(oob))
}
oob2 := make([]byte, 10*len(oob))
n, oobn2, flags, _, err := srv.(*net.UnixConn).ReadMsgUnix(nil, oob2)
if err != nil {
t.Fatalf("ReadMsgUnix: %v", err)
}
if flags != 0 {
t.Fatalf("ReadMsgUnix flags = 0x%x, want 0", flags)
}
if n != tt.dataLen {
t.Fatalf("ReadMsgUnix n = %d, want %d", n, tt.dataLen)
}
if oobn2 != oobn {
// without SO_PASSCRED set on the socket, ReadMsgUnix will
// return zero oob bytes
t.Fatalf("ReadMsgUnix oobn = %d, want %d", oobn2, oobn)
}
oob2 = oob2[:oobn2]
if !bytes.Equal(oob, oob2) {
t.Fatal("ReadMsgUnix oob bytes don't match")
}
scm, err := unix.ParseSocketControlMessage(oob2)
if err != nil {
t.Fatalf("ParseSocketControlMessage: %v", err)
}
newUcred, err := unix.ParseUnixCredentials(&scm[0])
if err != nil {
t.Fatalf("ParseUnixCredentials: %v", err)
}
if *newUcred != ucred {
t.Fatalf("ParseUnixCredentials = %+v, want %+v", newUcred, ucred)
}
}
}
// atLeast1p10 reports whether we are running on Go 1.10 or later.
func atLeast1p10() bool {
for _, ver := range build.Default.ReleaseTags {
if ver == "go1.10" {
return true
}
}
return false
}

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// Copyright 2017 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 go1.7
package unix_test
import (
"fmt"
"testing"
"golang.org/x/sys/unix"
)
func TestDevices(t *testing.T) {
testCases := []struct {
path string
major uint32
minor uint32
}{
// well known major/minor numbers according to
// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/devices.txt
{"/dev/null", 1, 3},
{"/dev/zero", 1, 5},
{"/dev/random", 1, 8},
{"/dev/full", 1, 7},
{"/dev/urandom", 1, 9},
{"/dev/tty", 5, 0},
}
for _, tc := range testCases {
t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
var stat unix.Stat_t
err := unix.Stat(tc.path, &stat)
if err != nil {
if err == unix.EACCES {
t.Skip("no permission to stat device, skipping test")
}
t.Errorf("failed to stat device: %v", err)
return
}
dev := uint64(stat.Rdev)
if unix.Major(dev) != tc.major {
t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
}
if unix.Minor(dev) != tc.minor {
t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
}
if unix.Mkdev(tc.major, tc.minor) != dev {
t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
}
})
}
}

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// 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 darwin dragonfly freebsd linux netbsd openbsd solaris
package unix_test
import (
"log"
"os"
"golang.org/x/sys/unix"
)
func ExampleExec() {
err := unix.Exec("/bin/ls", []string{"ls", "-al"}, os.Environ())
log.Fatal(err)
}

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// Copyright 2015 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 dragonfly freebsd linux netbsd openbsd solaris
package unix
var Itoa = itoa

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FROM ubuntu:18.04
# Dependencies to get the git sources and go binaries
RUN apt-get update && apt-get install -y --no-install-recommends \
ca-certificates \
curl \
git \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Get the git sources. If not cached, this takes O(5 minutes).
WORKDIR /git
RUN git config --global advice.detachedHead false
# Linux Kernel: Released 03 Jun 2018
RUN git clone --branch v4.17 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
# GNU C library: Released 01 Feb 2018 (we should try to get a secure way to clone this)
RUN git clone --branch glibc-2.27 --depth 1 git://sourceware.org/git/glibc.git
# Get Go
ENV GOLANG_VERSION 1.11beta1
ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
ENV GOLANG_DOWNLOAD_SHA256 df7fe096ffab5d331d35c6d038d2ec0426b45ce17f55a93037e371d3af9d4e6d
RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
&& echo "$GOLANG_DOWNLOAD_SHA256 golang.tar.gz" | sha256sum -c - \
&& tar -C /usr/local -xzf golang.tar.gz \
&& rm golang.tar.gz
ENV PATH /usr/local/go/bin:$PATH
# Linux and Glibc build dependencies and emulator
RUN apt-get update && apt-get install -y --no-install-recommends \
bison gawk make python \
gcc gcc-multilib \
gettext texinfo \
qemu \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Cross compilers (install recommended packages to get cross libc-dev)
RUN apt-get update && apt-get install -y \
gcc-aarch64-linux-gnu gcc-arm-linux-gnueabi \
gcc-mips-linux-gnu gcc-mips64-linux-gnuabi64 \
gcc-mips64el-linux-gnuabi64 gcc-mipsel-linux-gnu \
gcc-powerpc64-linux-gnu gcc-powerpc64le-linux-gnu \
gcc-s390x-linux-gnu gcc-sparc64-linux-gnu \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Let the scripts know they are in the docker environment
ENV GOLANG_SYS_BUILD docker
WORKDIR /build
ENTRYPOINT ["go", "run", "linux/mkall.go", "/git/linux", "/git/glibc"]

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// Copyright 2017 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.
// linux/mkall.go - Generates all Linux zsysnum, zsyscall, zerror, and ztype
// files for all 11 linux architectures supported by the go compiler. See
// README.md for more information about the build system.
// To run it you must have a git checkout of the Linux kernel and glibc. Once
// the appropriate sources are ready, the program is run as:
// go run linux/mkall.go <linux_dir> <glibc_dir>
// +build ignore
package main
import (
"bufio"
"bytes"
"debug/elf"
"encoding/binary"
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"runtime"
"strings"
"unicode"
)
// These will be paths to the appropriate source directories.
var LinuxDir string
var GlibcDir string
const TempDir = "/tmp"
const IncludeDir = TempDir + "/include" // To hold our C headers
const BuildDir = TempDir + "/build" // To hold intermediate build files
const GOOS = "linux" // Only for Linux targets
const BuildArch = "amd64" // Must be built on this architecture
const MinKernel = "2.6.23" // https://golang.org/doc/install#requirements
type target struct {
GoArch string // Architecture name according to Go
LinuxArch string // Architecture name according to the Linux Kernel
GNUArch string // Architecture name according to GNU tools (https://wiki.debian.org/Multiarch/Tuples)
BigEndian bool // Default Little Endian
SignedChar bool // Is -fsigned-char needed (default no)
Bits int
}
// List of the 11 Linux targets supported by the go compiler. sparc64 is not
// currently supported, though a port is in progress.
var targets = []target{
{
GoArch: "386",
LinuxArch: "x86",
GNUArch: "i686-linux-gnu", // Note "i686" not "i386"
Bits: 32,
},
{
GoArch: "amd64",
LinuxArch: "x86",
GNUArch: "x86_64-linux-gnu",
Bits: 64,
},
{
GoArch: "arm64",
LinuxArch: "arm64",
GNUArch: "aarch64-linux-gnu",
SignedChar: true,
Bits: 64,
},
{
GoArch: "arm",
LinuxArch: "arm",
GNUArch: "arm-linux-gnueabi",
Bits: 32,
},
{
GoArch: "mips",
LinuxArch: "mips",
GNUArch: "mips-linux-gnu",
BigEndian: true,
Bits: 32,
},
{
GoArch: "mipsle",
LinuxArch: "mips",
GNUArch: "mipsel-linux-gnu",
Bits: 32,
},
{
GoArch: "mips64",
LinuxArch: "mips",
GNUArch: "mips64-linux-gnuabi64",
BigEndian: true,
Bits: 64,
},
{
GoArch: "mips64le",
LinuxArch: "mips",
GNUArch: "mips64el-linux-gnuabi64",
Bits: 64,
},
{
GoArch: "ppc64",
LinuxArch: "powerpc",
GNUArch: "powerpc64-linux-gnu",
BigEndian: true,
Bits: 64,
},
{
GoArch: "ppc64le",
LinuxArch: "powerpc",
GNUArch: "powerpc64le-linux-gnu",
Bits: 64,
},
{
GoArch: "s390x",
LinuxArch: "s390",
GNUArch: "s390x-linux-gnu",
BigEndian: true,
SignedChar: true,
Bits: 64,
},
// {
// GoArch: "sparc64",
// LinuxArch: "sparc",
// GNUArch: "sparc64-linux-gnu",
// BigEndian: true,
// Bits: 64,
// },
}
// ptracePairs is a list of pairs of targets that can, in some cases,
// run each other's binaries.
var ptracePairs = []struct{ a1, a2 string }{
{"386", "amd64"},
{"arm", "arm64"},
{"mips", "mips64"},
{"mipsle", "mips64le"},
}
func main() {
if runtime.GOOS != GOOS || runtime.GOARCH != BuildArch {
fmt.Printf("Build system has GOOS_GOARCH = %s_%s, need %s_%s\n",
runtime.GOOS, runtime.GOARCH, GOOS, BuildArch)
return
}
// Check that we are using the new build system if we should
if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
fmt.Println("In the new build system, mkall.go should not be called directly.")
fmt.Println("See README.md")
return
}
// Parse the command line options
if len(os.Args) != 3 {
fmt.Println("USAGE: go run linux/mkall.go <linux_dir> <glibc_dir>")
return
}
LinuxDir = os.Args[1]
GlibcDir = os.Args[2]
for _, t := range targets {
fmt.Printf("----- GENERATING: %s -----\n", t.GoArch)
if err := t.generateFiles(); err != nil {
fmt.Printf("%v\n***** FAILURE: %s *****\n\n", err, t.GoArch)
} else {
fmt.Printf("----- SUCCESS: %s -----\n\n", t.GoArch)
}
}
fmt.Printf("----- GENERATING ptrace pairs -----\n")
ok := true
for _, p := range ptracePairs {
if err := generatePtracePair(p.a1, p.a2); err != nil {
fmt.Printf("%v\n***** FAILURE: %s/%s *****\n\n", err, p.a1, p.a2)
ok = false
}
}
if ok {
fmt.Printf("----- SUCCESS ptrace pairs -----\n\n")
}
}
// Makes an exec.Cmd with Stderr attached to os.Stderr
func makeCommand(name string, args ...string) *exec.Cmd {
cmd := exec.Command(name, args...)
cmd.Stderr = os.Stderr
return cmd
}
// 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...)
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
}
}
}
// mainCmd | fmtCmd > outputFile
if fmtCmd.Stdin, err = mainCmd.StdoutPipe(); err != nil {
return
}
if fmtCmd.Stdout, err = os.Create(outputFile); err != nil {
return
}
// Make sure the formatter eventually closes
if err = fmtCmd.Start(); err != nil {
return
}
defer func() {
fmtErr := fmtCmd.Wait()
if err == nil {
err = fmtErr
}
}()
return mainCmd.Run()
}
// Generates all the files for a Linux target
func (t *target) generateFiles() error {
// Setup environment variables
os.Setenv("GOOS", GOOS)
os.Setenv("GOARCH", t.GoArch)
// Get appropriate compiler and emulator (unless on x86)
if t.LinuxArch != "x86" {
// Check/Setup cross compiler
compiler := t.GNUArch + "-gcc"
if _, err := exec.LookPath(compiler); err != nil {
return err
}
os.Setenv("CC", compiler)
// Check/Setup emulator (usually first component of GNUArch)
qemuArchName := t.GNUArch[:strings.Index(t.GNUArch, "-")]
if t.LinuxArch == "powerpc" {
qemuArchName = t.GoArch
}
os.Setenv("GORUN", "qemu-"+qemuArchName)
} else {
os.Setenv("CC", "gcc")
}
// Make the include directory and fill it with headers
if err := os.MkdirAll(IncludeDir, os.ModePerm); err != nil {
return err
}
defer os.RemoveAll(IncludeDir)
if err := t.makeHeaders(); err != nil {
return fmt.Errorf("could not make header files: %v", err)
}
fmt.Println("header files generated")
// Make each of the four files
if err := t.makeZSysnumFile(); err != nil {
return fmt.Errorf("could not make zsysnum file: %v", err)
}
fmt.Println("zsysnum file generated")
if err := t.makeZSyscallFile(); err != nil {
return fmt.Errorf("could not make zsyscall file: %v", err)
}
fmt.Println("zsyscall file generated")
if err := t.makeZTypesFile(); err != nil {
return fmt.Errorf("could not make ztypes file: %v", err)
}
fmt.Println("ztypes file generated")
if err := t.makeZErrorsFile(); err != nil {
return fmt.Errorf("could not make zerrors file: %v", err)
}
fmt.Println("zerrors file generated")
return nil
}
// Create the Linux, glibc and ABI (C compiler convention) headers in the include directory.
func (t *target) makeHeaders() error {
// Make the Linux headers we need for this architecture
linuxMake := makeCommand("make", "headers_install", "ARCH="+t.LinuxArch, "INSTALL_HDR_PATH="+TempDir)
linuxMake.Dir = LinuxDir
if err := linuxMake.Run(); err != nil {
return err
}
// A Temporary build directory for glibc
if err := os.MkdirAll(BuildDir, os.ModePerm); err != nil {
return err
}
defer os.RemoveAll(BuildDir)
// Make the glibc headers we need for this architecture
confScript := filepath.Join(GlibcDir, "configure")
glibcConf := makeCommand(confScript, "--prefix="+TempDir, "--host="+t.GNUArch, "--enable-kernel="+MinKernel)
glibcConf.Dir = BuildDir
if err := glibcConf.Run(); err != nil {
return err
}
glibcMake := makeCommand("make", "install-headers")
glibcMake.Dir = BuildDir
if err := glibcMake.Run(); err != nil {
return err
}
// We only need an empty stubs file
stubsFile := filepath.Join(IncludeDir, "gnu/stubs.h")
if file, err := os.Create(stubsFile); err != nil {
return err
} else {
file.Close()
}
// ABI headers will specify C compiler behavior for the target platform.
return t.makeABIHeaders()
}
// makeABIHeaders generates C header files based on the platform's calling convention.
// While many platforms have formal Application Binary Interfaces, in practice, whatever the
// dominant C compilers generate is the de-facto calling convention.
//
// We generate C headers instead of a Go file, so as to enable references to the ABI from Cgo.
func (t *target) makeABIHeaders() (err error) {
abiDir := filepath.Join(IncludeDir, "abi")
if err = os.Mkdir(abiDir, os.ModePerm); err != nil {
return err
}
cc := os.Getenv("CC")
if cc == "" {
return errors.New("CC (compiler) env var not set")
}
// Build a sacrificial ELF file, to mine for C compiler behavior.
binPath := filepath.Join(TempDir, "tmp_abi.o")
bin, err := t.buildELF(cc, cCode, binPath)
if err != nil {
return fmt.Errorf("cannot build ELF to analyze: %v", err)
}
defer bin.Close()
defer os.Remove(binPath)
// Right now, we put everything in abi.h, but we may change this later.
abiFile, err := os.Create(filepath.Join(abiDir, "abi.h"))
if err != nil {
return err
}
defer func() {
if cerr := abiFile.Close(); cerr != nil && err == nil {
err = cerr
}
}()
if err = t.writeBitFieldMasks(bin, abiFile); err != nil {
return fmt.Errorf("cannot write bitfield masks: %v", err)
}
return nil
}
func (t *target) buildELF(cc, src, path string) (*elf.File, error) {
// Compile the cCode source using the set compiler - we will need its .data section.
// Do not link the binary, so that we can find .data section offsets from the symbol values.
ccCmd := makeCommand(cc, "-o", path, "-gdwarf", "-x", "c", "-c", "-")
ccCmd.Stdin = strings.NewReader(src)
ccCmd.Stdout = os.Stdout
if err := ccCmd.Run(); err != nil {
return nil, fmt.Errorf("compiler error: %v", err)
}
bin, err := elf.Open(path)
if err != nil {
return nil, fmt.Errorf("cannot read ELF file %s: %v", path, err)
}
return bin, nil
}
func (t *target) writeBitFieldMasks(bin *elf.File, out io.Writer) error {
symbols, err := bin.Symbols()
if err != nil {
return fmt.Errorf("getting ELF symbols: %v", err)
}
var masksSym *elf.Symbol
for _, sym := range symbols {
if sym.Name == "masks" {
masksSym = &sym
}
}
if masksSym == nil {
return errors.New("could not find the 'masks' symbol in ELF symtab")
}
dataSection := bin.Section(".data")
if dataSection == nil {
return errors.New("ELF file has no .data section")
}
data, err := dataSection.Data()
if err != nil {
return fmt.Errorf("could not read .data section: %v\n", err)
}
var bo binary.ByteOrder
if t.BigEndian {
bo = binary.BigEndian
} else {
bo = binary.LittleEndian
}
// 64 bit masks of type uint64 are stored in the data section starting at masks.Value.
// Here we are running on AMD64, but these values may be big endian or little endian,
// depending on target architecture.
for i := uint64(0); i < 64; i++ {
off := masksSym.Value + i*8
// Define each mask in native by order, so as to match target endian.
fmt.Fprintf(out, "#define BITFIELD_MASK_%d %dULL\n", i, bo.Uint64(data[off:off+8]))
}
return nil
}
// makes the zsysnum_linux_$GOARCH.go file
func (t *target) makeZSysnumFile() error {
zsysnumFile := fmt.Sprintf("zsysnum_linux_%s.go", t.GoArch)
unistdFile := filepath.Join(IncludeDir, "asm/unistd.h")
args := append(t.cFlags(), unistdFile)
return t.commandFormatOutput("gofmt", zsysnumFile, "linux/mksysnum.pl", args...)
}
// makes the zsyscall_linux_$GOARCH.go file
func (t *target) makeZSyscallFile() error {
zsyscallFile := fmt.Sprintf("zsyscall_linux_%s.go", t.GoArch)
// Find the correct architecture syscall file (might end with x.go)
archSyscallFile := fmt.Sprintf("syscall_linux_%s.go", t.GoArch)
if _, err := os.Stat(archSyscallFile); os.IsNotExist(err) {
shortArch := strings.TrimSuffix(t.GoArch, "le")
archSyscallFile = fmt.Sprintf("syscall_linux_%sx.go", shortArch)
}
args := append(t.mksyscallFlags(), "-tags", "linux,"+t.GoArch,
"syscall_linux.go", archSyscallFile)
return t.commandFormatOutput("gofmt", zsyscallFile, "./mksyscall.pl", args...)
}
// makes the zerrors_linux_$GOARCH.go file
func (t *target) makeZErrorsFile() error {
zerrorsFile := fmt.Sprintf("zerrors_linux_%s.go", t.GoArch)
return t.commandFormatOutput("gofmt", zerrorsFile, "./mkerrors.sh", t.cFlags()...)
}
// makes the ztypes_linux_$GOARCH.go file
func (t *target) makeZTypesFile() error {
ztypesFile := fmt.Sprintf("ztypes_linux_%s.go", t.GoArch)
args := []string{"tool", "cgo", "-godefs", "--"}
args = append(args, t.cFlags()...)
args = append(args, "linux/types.go")
return t.commandFormatOutput("mkpost", ztypesFile, "go", args...)
}
// Flags that should be given to gcc and cgo for this target
func (t *target) cFlags() []string {
// Compile statically to avoid cross-architecture dynamic linking.
flags := []string{"-Wall", "-Werror", "-static", "-I" + IncludeDir}
// Architecture-specific flags
if t.SignedChar {
flags = append(flags, "-fsigned-char")
}
if t.LinuxArch == "x86" {
flags = append(flags, fmt.Sprintf("-m%d", t.Bits))
}
return flags
}
// Flags that should be given to mksyscall for this target
func (t *target) mksyscallFlags() (flags []string) {
if t.Bits == 32 {
if t.BigEndian {
flags = append(flags, "-b32")
} else {
flags = append(flags, "-l32")
}
}
// This flag menas a 64-bit value should use (even, odd)-pair.
if t.GoArch == "arm" || (t.LinuxArch == "mips" && t.Bits == 32) {
flags = append(flags, "-arm")
}
return
}
// generatePtracePair takes a pair of GOARCH values that can run each
// other's binaries, such as 386 and amd64. It extracts the PtraceRegs
// type for each one. It writes a new file defining the types
// PtraceRegsArch1 and PtraceRegsArch2 and the corresponding functions
// Ptrace{Get,Set}Regs{arch1,arch2}. This permits debugging the other
// binary on a native system.
func generatePtracePair(arch1, arch2 string) error {
def1, err := ptraceDef(arch1)
if err != nil {
return err
}
def2, err := ptraceDef(arch2)
if err != nil {
return err
}
f, err := os.Create(fmt.Sprintf("zptrace%s_linux.go", arch1))
if err != nil {
return err
}
buf := bufio.NewWriter(f)
fmt.Fprintf(buf, "// Code generated by linux/mkall.go generatePtracePair(%s, %s). DO NOT EDIT.\n", arch1, arch2)
fmt.Fprintf(buf, "\n")
fmt.Fprintf(buf, "// +build linux\n")
fmt.Fprintf(buf, "// +build %s %s\n", arch1, arch2)
fmt.Fprintf(buf, "\n")
fmt.Fprintf(buf, "package unix\n")
fmt.Fprintf(buf, "\n")
fmt.Fprintf(buf, "%s\n", `import "unsafe"`)
fmt.Fprintf(buf, "\n")
writeOnePtrace(buf, arch1, def1)
fmt.Fprintf(buf, "\n")
writeOnePtrace(buf, arch2, def2)
if err := buf.Flush(); err != nil {
return err
}
if err := f.Close(); err != nil {
return err
}
return nil
}
// ptraceDef returns the definition of PtraceRegs for arch.
func ptraceDef(arch string) (string, error) {
filename := fmt.Sprintf("ztypes_linux_%s.go", arch)
data, err := ioutil.ReadFile(filename)
if err != nil {
return "", fmt.Errorf("reading %s: %v", filename, err)
}
start := bytes.Index(data, []byte("type PtraceRegs struct"))
if start < 0 {
return "", fmt.Errorf("%s: no definition of PtraceRegs", filename)
}
data = data[start:]
end := bytes.Index(data, []byte("\n}\n"))
if end < 0 {
return "", fmt.Errorf("%s: can't find end of PtraceRegs definition", filename)
}
return string(data[:end+2]), nil
}
// writeOnePtrace writes out the ptrace definitions for arch.
func writeOnePtrace(w io.Writer, arch, def string) {
uarch := string(unicode.ToUpper(rune(arch[0]))) + arch[1:]
fmt.Fprintf(w, "// PtraceRegs%s is the registers used by %s binaries.\n", uarch, arch)
fmt.Fprintf(w, "%s\n", strings.Replace(def, "PtraceRegs", "PtraceRegs"+uarch, 1))
fmt.Fprintf(w, "\n")
fmt.Fprintf(w, "// PtraceGetRegs%s fetches the registers used by %s binaries.\n", uarch, arch)
fmt.Fprintf(w, "func PtraceGetRegs%s(pid int, regsout *PtraceRegs%s) error {\n", uarch, uarch)
fmt.Fprintf(w, "\treturn ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))\n")
fmt.Fprintf(w, "}\n")
fmt.Fprintf(w, "\n")
fmt.Fprintf(w, "// PtraceSetRegs%s sets the registers used by %s binaries.\n", uarch, arch)
fmt.Fprintf(w, "func PtraceSetRegs%s(pid int, regs *PtraceRegs%s) error {\n", uarch, uarch)
fmt.Fprintf(w, "\treturn ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))\n")
fmt.Fprintf(w, "}\n")
}
// cCode is compiled for the target architecture, and the resulting data section is carved for
// the statically initialized bit masks.
const cCode = `
// Bit fields are used in some system calls and other ABIs, but their memory layout is
// implementation-defined [1]. Even with formal ABIs, bit fields are a source of subtle bugs [2].
// Here we generate the offsets for all 64 bits in an uint64.
// 1: http://en.cppreference.com/w/c/language/bit_field
// 2: https://lwn.net/Articles/478657/
#include <stdint.h>
struct bitfield {
union {
uint64_t val;
struct {
uint64_t u64_bit_0 : 1;
uint64_t u64_bit_1 : 1;
uint64_t u64_bit_2 : 1;
uint64_t u64_bit_3 : 1;
uint64_t u64_bit_4 : 1;
uint64_t u64_bit_5 : 1;
uint64_t u64_bit_6 : 1;
uint64_t u64_bit_7 : 1;
uint64_t u64_bit_8 : 1;
uint64_t u64_bit_9 : 1;
uint64_t u64_bit_10 : 1;
uint64_t u64_bit_11 : 1;
uint64_t u64_bit_12 : 1;
uint64_t u64_bit_13 : 1;
uint64_t u64_bit_14 : 1;
uint64_t u64_bit_15 : 1;
uint64_t u64_bit_16 : 1;
uint64_t u64_bit_17 : 1;
uint64_t u64_bit_18 : 1;
uint64_t u64_bit_19 : 1;
uint64_t u64_bit_20 : 1;
uint64_t u64_bit_21 : 1;
uint64_t u64_bit_22 : 1;
uint64_t u64_bit_23 : 1;
uint64_t u64_bit_24 : 1;
uint64_t u64_bit_25 : 1;
uint64_t u64_bit_26 : 1;
uint64_t u64_bit_27 : 1;
uint64_t u64_bit_28 : 1;
uint64_t u64_bit_29 : 1;
uint64_t u64_bit_30 : 1;
uint64_t u64_bit_31 : 1;
uint64_t u64_bit_32 : 1;
uint64_t u64_bit_33 : 1;
uint64_t u64_bit_34 : 1;
uint64_t u64_bit_35 : 1;
uint64_t u64_bit_36 : 1;
uint64_t u64_bit_37 : 1;
uint64_t u64_bit_38 : 1;
uint64_t u64_bit_39 : 1;
uint64_t u64_bit_40 : 1;
uint64_t u64_bit_41 : 1;
uint64_t u64_bit_42 : 1;
uint64_t u64_bit_43 : 1;
uint64_t u64_bit_44 : 1;
uint64_t u64_bit_45 : 1;
uint64_t u64_bit_46 : 1;
uint64_t u64_bit_47 : 1;
uint64_t u64_bit_48 : 1;
uint64_t u64_bit_49 : 1;
uint64_t u64_bit_50 : 1;
uint64_t u64_bit_51 : 1;
uint64_t u64_bit_52 : 1;
uint64_t u64_bit_53 : 1;
uint64_t u64_bit_54 : 1;
uint64_t u64_bit_55 : 1;
uint64_t u64_bit_56 : 1;
uint64_t u64_bit_57 : 1;
uint64_t u64_bit_58 : 1;
uint64_t u64_bit_59 : 1;
uint64_t u64_bit_60 : 1;
uint64_t u64_bit_61 : 1;
uint64_t u64_bit_62 : 1;
uint64_t u64_bit_63 : 1;
};
};
};
struct bitfield masks[] = {
{.u64_bit_0 = 1},
{.u64_bit_1 = 1},
{.u64_bit_2 = 1},
{.u64_bit_3 = 1},
{.u64_bit_4 = 1},
{.u64_bit_5 = 1},
{.u64_bit_6 = 1},
{.u64_bit_7 = 1},
{.u64_bit_8 = 1},
{.u64_bit_9 = 1},
{.u64_bit_10 = 1},
{.u64_bit_11 = 1},
{.u64_bit_12 = 1},
{.u64_bit_13 = 1},
{.u64_bit_14 = 1},
{.u64_bit_15 = 1},
{.u64_bit_16 = 1},
{.u64_bit_17 = 1},
{.u64_bit_18 = 1},
{.u64_bit_19 = 1},
{.u64_bit_20 = 1},
{.u64_bit_21 = 1},
{.u64_bit_22 = 1},
{.u64_bit_23 = 1},
{.u64_bit_24 = 1},
{.u64_bit_25 = 1},
{.u64_bit_26 = 1},
{.u64_bit_27 = 1},
{.u64_bit_28 = 1},
{.u64_bit_29 = 1},
{.u64_bit_30 = 1},
{.u64_bit_31 = 1},
{.u64_bit_32 = 1},
{.u64_bit_33 = 1},
{.u64_bit_34 = 1},
{.u64_bit_35 = 1},
{.u64_bit_36 = 1},
{.u64_bit_37 = 1},
{.u64_bit_38 = 1},
{.u64_bit_39 = 1},
{.u64_bit_40 = 1},
{.u64_bit_41 = 1},
{.u64_bit_42 = 1},
{.u64_bit_43 = 1},
{.u64_bit_44 = 1},
{.u64_bit_45 = 1},
{.u64_bit_46 = 1},
{.u64_bit_47 = 1},
{.u64_bit_48 = 1},
{.u64_bit_49 = 1},
{.u64_bit_50 = 1},
{.u64_bit_51 = 1},
{.u64_bit_52 = 1},
{.u64_bit_53 = 1},
{.u64_bit_54 = 1},
{.u64_bit_55 = 1},
{.u64_bit_56 = 1},
{.u64_bit_57 = 1},
{.u64_bit_58 = 1},
{.u64_bit_59 = 1},
{.u64_bit_60 = 1},
{.u64_bit_61 = 1},
{.u64_bit_62 = 1},
{.u64_bit_63 = 1}
};
int main(int argc, char **argv) {
struct bitfield *mask_ptr = &masks[0];
return mask_ptr->val;
}
`

View File

@ -1,85 +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.
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
# Check that we are using the new build system if we should
if($ENV{'GOLANG_SYS_BUILD'} ne "docker") {
print STDERR "In the new build system, mksysnum should not be called directly.\n";
print STDERR "See README.md\n";
exit 1;
}
my $command = "$0 ". join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const(
EOF
my $offset = 0;
sub fmt {
my ($name, $num) = @_;
if($num > 999){
# ignore deprecated syscalls that are no longer implemented
# https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/include/uapi/asm-generic/unistd.h?id=refs/heads/master#n716
return;
}
$name =~ y/a-z/A-Z/;
$num = $num + $offset;
print " SYS_$name = $num;\n";
}
my $prev;
open(CC, "$ENV{'CC'} -E -dD @ARGV |") || die "can't run $ENV{'CC'}";
while(<CC>){
if(/^#define __NR_Linux\s+([0-9]+)/){
# mips/mips64: extract offset
$offset = $1;
}
elsif(/^#define __NR(\w*)_SYSCALL_BASE\s+([0-9]+)/){
# arm: extract offset
$offset = $1;
}
elsif(/^#define __NR_syscalls\s+/) {
# ignore redefinitions of __NR_syscalls
}
elsif(/^#define __NR_(\w*)Linux_syscalls\s+/) {
# mips/mips64: ignore definitions about the number of syscalls
}
elsif(/^#define __NR_(\w+)\s+([0-9]+)/){
$prev = $2;
fmt($1, $2);
}
elsif(/^#define __NR3264_(\w+)\s+([0-9]+)/){
$prev = $2;
fmt($1, $2);
}
elsif(/^#define __NR_(\w+)\s+\(\w+\+\s*([0-9]+)\)/){
fmt($1, $prev+$2)
}
elsif(/^#define __NR_(\w+)\s+\(__NR_Linux \+ ([0-9]+)/){
fmt($1, $2);
}
elsif(/^#define __NR_(\w+)\s+\(__NR_SYSCALL_BASE \+ ([0-9]+)/){
fmt($1, $2);
}
}
print <<EOF;
)
EOF

File diff suppressed because it is too large Load Diff

188
vendor/golang.org/x/sys/unix/mkall.sh generated vendored
View File

@ -1,188 +0,0 @@
#!/usr/bin/env bash
# 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 script runs or (given -n) prints suggested commands to generate files for
# the Architecture/OS specified by the GOARCH and GOOS environment variables.
# See README.md for more information about how the build system works.
GOOSARCH="${GOOS}_${GOARCH}"
# defaults
mksyscall="./mksyscall.pl"
mkerrors="./mkerrors.sh"
zerrors="zerrors_$GOOSARCH.go"
mksysctl=""
zsysctl="zsysctl_$GOOSARCH.go"
mksysnum=
mktypes=
run="sh"
cmd=""
case "$1" in
-syscalls)
for i in zsyscall*go
do
# Run the command line that appears in the first line
# of the generated file to regenerate it.
sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
rm _$i
done
exit 0
;;
-n)
run="cat"
cmd="echo"
shift
esac
case "$#" in
0)
;;
*)
echo 'usage: mkall.sh [-n]' 1>&2
exit 2
esac
if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
# Use then new build system
# Files generated through docker (use $cmd so you can Ctl-C the build or run)
$cmd docker build --tag generate:$GOOS $GOOS
$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
exit
fi
GOOSARCH_in=syscall_$GOOSARCH.go
case "$GOOSARCH" in
_* | *_ | _)
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
exit 1
;;
darwin_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_amd64)
mkerrors="$mkerrors -m64"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_arm)
mkerrors="$mkerrors"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_arm64)
mkerrors="$mkerrors -m64"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
dragonfly_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -dragonfly"
mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_amd64)
mkerrors="$mkerrors -m64"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -arm"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
linux_sparc64)
GOOSARCH_in=syscall_linux_sparc64.go
unistd_h=/usr/include/sparc64-linux-gnu/asm/unistd.h
mkerrors="$mkerrors -m64"
mksysnum="./mksysnum_linux.pl $unistd_h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -netbsd"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -netbsd"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -netbsd -arm"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
openbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -openbsd"
mksysctl="./mksysctl_openbsd.pl"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -openbsd"
mksysctl="./mksysctl_openbsd.pl"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -openbsd -arm"
mksysctl="./mksysctl_openbsd.pl"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
solaris_amd64)
mksyscall="./mksyscall_solaris.pl"
mkerrors="$mkerrors -m64"
mksysnum=
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
*)
echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
exit 1
;;
esac
(
if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
case "$GOOS" in
*)
syscall_goos="syscall_$GOOS.go"
case "$GOOS" in
darwin | dragonfly | freebsd | netbsd | openbsd)
syscall_goos="syscall_bsd.go $syscall_goos"
;;
esac
if [ -n "$mksyscall" ]; then echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go"; fi
;;
esac
if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
if [ -n "$mktypes" ]; then
echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go";
fi
) | $run

View File

@ -1,604 +0,0 @@
#!/usr/bin/env bash
# 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.
# Generate Go code listing errors and other #defined constant
# values (ENAMETOOLONG etc.), by asking the preprocessor
# about the definitions.
unset LANG
export LC_ALL=C
export LC_CTYPE=C
if test -z "$GOARCH" -o -z "$GOOS"; then
echo 1>&2 "GOARCH or GOOS not defined in environment"
exit 1
fi
# Check that we are using the new build system if we should
if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
if [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
echo 1>&2 "In the new build system, mkerrors should not be called directly."
echo 1>&2 "See README.md"
exit 1
fi
fi
CC=${CC:-cc}
if [[ "$GOOS" = "solaris" ]]; then
# Assumes GNU versions of utilities in PATH.
export PATH=/usr/gnu/bin:$PATH
fi
uname=$(uname)
includes_Darwin='
#define _DARWIN_C_SOURCE
#define KERNEL
#define _DARWIN_USE_64_BIT_INODE
#include <stdint.h>
#include <sys/attr.h>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/ptrace.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <sys/xattr.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <termios.h>
'
includes_DragonFly='
#include <sys/types.h>
#include <sys/event.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <net/ip_mroute/ip_mroute.h>
'
includes_FreeBSD='
#include <sys/capability.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <sys/extattr.h>
#if __FreeBSD__ >= 10
#define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10
#undef SIOCAIFADDR
#define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data
#undef SIOCSIFPHYADDR
#define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data
#endif
'
includes_Linux='
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#ifndef __LP64__
#define _FILE_OFFSET_BITS 64
#endif
#define _GNU_SOURCE
// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
// these structures. We just include them copied from <bits/termios.h>.
#if defined(__powerpc__)
struct sgttyb {
char sg_ispeed;
char sg_ospeed;
char sg_erase;
char sg_kill;
short sg_flags;
};
struct tchars {
char t_intrc;
char t_quitc;
char t_startc;
char t_stopc;
char t_eofc;
char t_brkc;
};
struct ltchars {
char t_suspc;
char t_dsuspc;
char t_rprntc;
char t_flushc;
char t_werasc;
char t_lnextc;
};
#endif
#include <bits/sockaddr.h>
#include <sys/epoll.h>
#include <sys/eventfd.h>
#include <sys/inotify.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/xattr.h>
#include <linux/if.h>
#include <linux/if_alg.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_addr.h>
#include <linux/falloc.h>
#include <linux/filter.h>
#include <linux/fs.h>
#include <linux/keyctl.h>
#include <linux/magic.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netlink.h>
#include <linux/perf_event.h>
#include <linux/random.h>
#include <linux/reboot.h>
#include <linux/rtnetlink.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
#include <linux/seccomp.h>
#include <linux/sockios.h>
#include <linux/wait.h>
#include <linux/icmpv6.h>
#include <linux/serial.h>
#include <linux/can.h>
#include <linux/vm_sockets.h>
#include <linux/taskstats.h>
#include <linux/genetlink.h>
#include <linux/stat.h>
#include <linux/watchdog.h>
#include <linux/hdreg.h>
#include <linux/rtc.h>
#include <net/route.h>
#include <asm/termbits.h>
#ifndef MSG_FASTOPEN
#define MSG_FASTOPEN 0x20000000
#endif
#ifndef PTRACE_GETREGS
#define PTRACE_GETREGS 0xc
#endif
#ifndef PTRACE_SETREGS
#define PTRACE_SETREGS 0xd
#endif
#ifndef SOL_NETLINK
#define SOL_NETLINK 270
#endif
#ifdef SOL_BLUETOOTH
// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
// but it is already in bluetooth_linux.go
#undef SOL_BLUETOOTH
#endif
// Certain constants are missing from the fs/crypto UAPI
#define FS_KEY_DESC_PREFIX "fscrypt:"
#define FS_KEY_DESC_PREFIX_SIZE 8
#define FS_MAX_KEY_SIZE 64
'
includes_NetBSD='
#include <sys/types.h>
#include <sys/param.h>
#include <sys/event.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <netinet/if_ether.h>
// Needed since <sys/param.h> refers to it...
#define schedppq 1
'
includes_OpenBSD='
#include <sys/types.h>
#include <sys/param.h>
#include <sys/event.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <netinet/if_ether.h>
#include <net/if_bridge.h>
// We keep some constants not supported in OpenBSD 5.5 and beyond for
// the promise of compatibility.
#define EMUL_ENABLED 0x1
#define EMUL_NATIVE 0x2
#define IPV6_FAITH 0x1d
#define IPV6_OPTIONS 0x1
#define IPV6_RTHDR_STRICT 0x1
#define IPV6_SOCKOPT_RESERVED1 0x3
#define SIOCGIFGENERIC 0xc020693a
#define SIOCSIFGENERIC 0x80206939
#define WALTSIG 0x4
'
includes_SunOS='
#include <limits.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <sys/mkdev.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
'
includes='
#include <sys/types.h>
#include <sys/file.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <errno.h>
#include <sys/signal.h>
#include <signal.h>
#include <sys/resource.h>
#include <time.h>
'
ccflags="$@"
# Write go tool cgo -godefs input.
(
echo package unix
echo
echo '/*'
indirect="includes_$(uname)"
echo "${!indirect} $includes"
echo '*/'
echo 'import "C"'
echo 'import "syscall"'
echo
echo 'const ('
# The gcc command line prints all the #defines
# it encounters while processing the input
echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
awk '
$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
$2 ~ /^(SCM_SRCRT)$/ {next}
$2 ~ /^(MAP_FAILED)$/ {next}
$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
$2 !~ /^ETH_/ &&
$2 !~ /^EPROC_/ &&
$2 !~ /^EQUIV_/ &&
$2 !~ /^EXPR_/ &&
$2 ~ /^E[A-Z0-9_]+$/ ||
$2 ~ /^B[0-9_]+$/ ||
$2 ~ /^(OLD|NEW)DEV$/ ||
$2 == "BOTHER" ||
$2 ~ /^CI?BAUD(EX)?$/ ||
$2 == "IBSHIFT" ||
$2 ~ /^V[A-Z0-9]+$/ ||
$2 ~ /^CS[A-Z0-9]/ ||
$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
$2 ~ /^IGN/ ||
$2 ~ /^IX(ON|ANY|OFF)$/ ||
$2 ~ /^IN(LCR|PCK)$/ ||
$2 !~ "X86_CR3_PCID_NOFLUSH" &&
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
$2 == "BRKINT" ||
$2 == "HUPCL" ||
$2 == "PENDIN" ||
$2 == "TOSTOP" ||
$2 == "XCASE" ||
$2 == "ALTWERASE" ||
$2 == "NOKERNINFO" ||
$2 ~ /^PAR/ ||
$2 ~ /^SIG[^_]/ ||
$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
$2 ~ /^O?XTABS$/ ||
$2 ~ /^TC[IO](ON|OFF)$/ ||
$2 ~ /^IN_/ ||
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
$2 ~ /^TP_STATUS_/ ||
$2 ~ /^FALLOC_/ ||
$2 == "ICMPV6_FILTER" ||
$2 == "SOMAXCONN" ||
$2 == "NAME_MAX" ||
$2 == "IFNAMSIZ" ||
$2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
$2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
$2 ~ /^HW_MACHINE$/ ||
$2 ~ /^SYSCTL_VERS/ ||
$2 ~ /^(MS|MNT|UMOUNT)_/ ||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
$2 ~ /^(O|F|E?FD|NAME|S|PTRACE|PT)_/ ||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
$2 !~ "NLA_TYPE_MASK" &&
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
$2 ~ /^SIOC/ ||
$2 ~ /^TIOC/ ||
$2 ~ /^TCGET/ ||
$2 ~ /^TCSET/ ||
$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
$2 !~ "RTF_BITS" &&
$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
$2 ~ /^BIOC/ ||
$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
$2 ~ /^CLONE_[A-Z_]+/ ||
$2 !~ /^(BPF_TIMEVAL)$/ &&
$2 ~ /^(BPF|DLT)_/ ||
$2 ~ /^CLOCK_/ ||
$2 ~ /^CAN_/ ||
$2 ~ /^CAP_/ ||
$2 ~ /^ALG_/ ||
$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
$2 ~ /^GRND_/ ||
$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
$2 ~ /^KEYCTL_/ ||
$2 ~ /^PERF_EVENT_IOC_/ ||
$2 ~ /^SECCOMP_MODE_/ ||
$2 ~ /^SPLICE_/ ||
$2 !~ /^AUDIT_RECORD_MAGIC/ &&
$2 ~ /^[A-Z0-9_]+_MAGIC2?$/ ||
$2 ~ /^(VM|VMADDR)_/ ||
$2 ~ /^IOCTL_VM_SOCKETS_/ ||
$2 ~ /^(TASKSTATS|TS)_/ ||
$2 ~ /^CGROUPSTATS_/ ||
$2 ~ /^GENL_/ ||
$2 ~ /^STATX_/ ||
$2 ~ /^UTIME_/ ||
$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
$2 ~ /^FSOPT_/ ||
$2 ~ /^WDIOC_/ ||
$2 ~ /^NFN/ ||
$2 ~ /^(HDIO|WIN|SMART)_/ ||
$2 !~ "WMESGLEN" &&
$2 ~ /^W[A-Z0-9]+$/ ||
$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
$2 ~ /^__WCOREFLAG$/ {next}
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
{next}
' | sort
echo ')'
) >_const.go
# Pull out the error names for later.
errors=$(
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
sort
)
# Pull out the signal names for later.
signals=$(
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
sort
)
# Again, writing regexps to a file.
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
sort >_error.grep
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
sort >_signal.grep
echo '// mkerrors.sh' "$@"
echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
echo
echo "// +build ${GOARCH},${GOOS}"
echo
go tool cgo -godefs -- "$@" _const.go >_error.out
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
echo
echo '// Errors'
echo 'const ('
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
echo ')'
echo
echo '// Signals'
echo 'const ('
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
echo ')'
# Run C program to print error and syscall strings.
(
echo -E "
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <signal.h>
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
struct tuple {
int num;
const char *name;
};
struct tuple errors[] = {
"
for i in $errors
do
echo -E ' {'$i', "'$i'" },'
done
echo -E "
};
struct tuple signals[] = {
"
for i in $signals
do
echo -E ' {'$i', "'$i'" },'
done
# Use -E because on some systems bash builtin interprets \n itself.
echo -E '
};
static int
tuplecmp(const void *a, const void *b)
{
return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
}
int
main(void)
{
int i, e;
char buf[1024], *p;
printf("\n\n// Error table\n");
printf("var errorList = [...]struct {\n");
printf("\tnum syscall.Errno\n");
printf("\tname string\n");
printf("\tdesc string\n");
printf("} {\n");
qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
for(i=0; i<nelem(errors); i++) {
e = errors[i].num;
if(i > 0 && errors[i-1].num == e)
continue;
strcpy(buf, strerror(e));
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
}
printf("}\n\n");
printf("\n\n// Signal table\n");
printf("var signalList = [...]struct {\n");
printf("\tnum syscall.Signal\n");
printf("\tname string\n");
printf("\tdesc string\n");
printf("} {\n");
qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
for(i=0; i<nelem(signals); i++) {
e = signals[i].num;
if(i > 0 && signals[i-1].num == e)
continue;
strcpy(buf, strsignal(e));
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
// cut trailing : number.
p = strrchr(buf, ":"[0]);
if(p)
*p = '\0';
printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
}
printf("}\n\n");
return 0;
}
'
) >_errors.c
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

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;

View File

@ -1,289 +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_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
use strict;
my $cmdline = "mksyscall_solaris.pl " . join(' ', @ARGV);
my $errors = 0;
my $_32bit = "";
my $tags = ""; # build tags
binmode STDOUT;
if($ARGV[0] eq "-b32") {
$_32bit = "big-endian";
shift;
} elsif($ARGV[0] eq "-l32") {
$_32bit = "little-endian";
shift;
}
if($ARGV[0] eq "-tags") {
shift;
$tags = $ARGV[0];
shift;
}
if($ARGV[0] =~ /^-/) {
print STDERR "usage: mksyscall_solaris.pl [-b32 | -l32] [-tags x,y] [file ...]\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 $package = "";
my $text = "";
my $dynimports = "";
my $linknames = "";
my @vars = ();
while(<>) {
chomp;
s/\s+/ /g;
s/^\s+//;
s/\s+$//;
$package = $1 if !$package && /^package (\S+)$/;
my $nonblock = /^\/\/sysnb /;
next if !/^\/\/sys / && !$nonblock;
# 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.
if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
print STDERR "$ARGV:$.: malformed //sys declaration\n";
$errors = 1;
next;
}
my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
# Split argument lists on comma.
my @in = parseparamlist($in);
my @out = parseparamlist($out);
# So file name.
if($modname eq "") {
$modname = "libc";
}
# System call name.
if($sysname eq "") {
$sysname = "$func";
}
# System call pointer variable name.
my $sysvarname = "proc$sysname";
my $strconvfunc = "BytePtrFromString";
my $strconvtype = "*byte";
$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
# Runtime import of function to allow cross-platform builds.
$dynimports .= "//go:cgo_import_dynamic libc_${sysname} ${sysname} \"$modname.so\"\n";
# Link symbol to proc address variable.
$linknames .= "//go:linkname ${sysvarname} libc_${sysname}\n";
# Library proc address variable.
push @vars, $sysvarname;
# Go function header.
$out = join(', ', @out);
if($out ne "") {
$out = " ($out)";
}
if($text ne "") {
$text .= "\n"
}
$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out;
# 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 $strconvtype\n";
$text .= "\t_p$n, $errvar = $strconvfunc($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 $strconvtype\n";
$text .= "\t_p$n, _ = $strconvfunc($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 nil in that case.
$text .= "\tvar _p$n *$1\n";
$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
push @args, "uintptr(unsafe.Pointer(_p$n))", "uintptr(len($name))";
$n++;
} elsif($type eq "int64" && $_32bit ne "") {
if($_32bit eq "big-endian") {
push @args, "uintptr($name >> 32)", "uintptr($name)";
} else {
push @args, "uintptr($name)", "uintptr($name >> 32)";
}
} elsif($type eq "bool") {
$text .= "\tvar _p$n uint32\n";
$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
push @args, "uintptr(_p$n)";
$n++;
} else {
push @args, "uintptr($name)";
}
}
my $nargs = @args;
# Determine which form to use; pad args with zeros.
my $asm = "sysvicall6";
if ($nonblock) {
$asm = "rawSysvicall6";
}
if(@args <= 6) {
while(@args < 6) {
push @args, "0";
}
} else {
print STDERR "$ARGV:$.: too many arguments to system call\n";
}
# Actual call.
my $args = join(', ', @args);
my $call = "$asm(uintptr(unsafe.Pointer(&$sysvarname)), $nargs, $args)";
# Assign return values.
my $body = "";
my $failexpr = "";
my @ret = ("_", "_", "_");
my @pout= ();
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") {
$reg = "e1";
$ret[2] = $reg;
$do_errno = 1;
} 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") {
$body .= "\t$name = $type($reg)\n";
}
}
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
}
$text .= $body;
if ($do_errno) {
$text .= "\tif e1 != 0 {\n";
$text .= "\t\terr = e1\n";
$text .= "\t}\n";
}
$text .= "\treturn\n";
$text .= "}\n";
}
if($errors) {
exit 1;
}
print <<EOF;
// $cmdline
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $tags
package $package
import (
"syscall"
"unsafe"
)
EOF
print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
my $vardecls = "\t" . join(",\n\t", @vars);
$vardecls .= " syscallFunc";
chomp($_=<<EOF);
$dynimports
$linknames
var (
$vardecls
)
$text
EOF
print $_;
exit 0;

View File

@ -1,264 +0,0 @@
#!/usr/bin/env perl
# Copyright 2011 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# 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.
#
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $debug = 0;
my %ctls = ();
my @headers = qw (
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/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
);
my @ctls = qw (
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"
my %ctl_map = (
"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
my %node_map = (
"net.inet.ip.ifq" => "net.ifq",
"net.inet.pfsync" => "net.pfsync",
"net.mpls.ifq" => "net.ifq"
);
my $ctlname;
my %mib = ();
my %sysctl = ();
my $node;
sub debug() {
print STDERR "$_[0]\n" if $debug;
}
# Walk the MIB and build a sysctl name to OID mapping.
sub build_sysctl() {
my ($node, $name, $oid) = @_;
my %node = %{$node};
my @oid = @{$oid};
foreach my $key (sort keys %node) {
my @node = @{$node{$key}};
my $nodename = $name.($name ne '' ? '.' : '').$key;
my @nodeoid = (@oid, $node[0]);
if ($node[1] eq 'CTLTYPE_NODE') {
if (exists $node_map{$nodename}) {
$node = \%mib;
$ctlname = $node_map{$nodename};
foreach my $part (split /\./, $ctlname) {
$node = \%{@{$$node{$part}}[2]};
}
} else {
$node = $node[2];
}
&build_sysctl($node, $nodename, \@nodeoid);
} elsif ($node[1] ne '') {
$sysctl{$nodename} = \@nodeoid;
}
}
}
foreach my $ctl (@ctls) {
$ctls{$ctl} = $ctl;
}
# Build MIB
foreach my $header (@headers) {
&debug("Processing $header...");
open HEADER, "/usr/include/$header" ||
print STDERR "Failed to open $header\n";
while (<HEADER>) {
if ($_ =~ /^#define\s+(CTL_NAMES)\s+{/ ||
$_ =~ /^#define\s+(CTL_(.*)_NAMES)\s+{/ ||
$_ =~ /^#define\s+((.*)CTL_NAMES)\s+{/) {
if ($1 eq 'CTL_NAMES') {
# Top level.
$node = \%mib;
} else {
# Node.
my $nodename = lc($2);
if ($header =~ /^netinet\//) {
$ctlname = "net.inet.$nodename";
} elsif ($header =~ /^netinet6\//) {
$ctlname = "net.inet6.$nodename";
} elsif ($header =~ /^net\//) {
$ctlname = "net.$nodename";
} else {
$ctlname = "$nodename";
$ctlname =~ s/^(fs|net|kern)_/$1\./;
}
if (exists $ctl_map{$ctlname}) {
$ctlname = $ctl_map{$ctlname};
}
if (not exists $ctls{$ctlname}) {
&debug("Ignoring $ctlname...");
next;
}
# Walk down from the top of the MIB.
$node = \%mib;
foreach my $part (split /\./, $ctlname) {
if (not exists $$node{$part}) {
&debug("Missing node $part");
$$node{$part} = [ 0, '', {} ];
}
$node = \%{@{$$node{$part}}[2]};
}
}
# Populate current node with entries.
my $i = -1;
while (defined($_) && $_ !~ /^}/) {
$_ = <HEADER>;
$i++ if $_ =~ /{.*}/;
next if $_ !~ /{\s+"(\w+)",\s+(CTLTYPE_[A-Z]+)\s+}/;
$$node{$1} = [ $i, $2, {} ];
}
}
}
close HEADER;
}
&build_sysctl(\%mib, "", []);
print <<EOF;
// mksysctl_openbsd.pl
// Code generated by the command above; DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix;
type mibentry struct {
ctlname string
ctloid []_C_int
}
var sysctlMib = []mibentry {
EOF
foreach my $name (sort keys %sysctl) {
my @oid = @{$sysctl{$name}};
print "\t{ \"$name\", []_C_int{ ", join(', ', @oid), " } }, \n";
}
print <<EOF;
}
EOF

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@ -1,39 +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.
#
# Generate system call table for Darwin from sys/syscall.h
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_darwin.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^#define\s+SYS_(\w+)\s+([0-9]+)/){
my $name = $1;
my $num = $2;
$name =~ y/a-z/A-Z/;
print " SYS_$name = $num;"
}
}
print <<EOF;
)
EOF

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@ -1,50 +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.
#
# Generate system call table for DragonFly from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_dragonfly.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$/){
my $num = $1;
my $proto = $2;
my $name = "SYS_$3";
$name =~ y/a-z/A-Z/;
# There are multiple entries for enosys and nosys, so comment them out.
if($name =~ /^SYS_E?NOSYS$/){
$name = "// $name";
}
if($name eq 'SYS_SYS_EXIT'){
$name = 'SYS_EXIT';
}
print " $name = $num; // $proto\n";
}
}
print <<EOF;
)
EOF

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@ -1,50 +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.
#
# Generate system call table for FreeBSD from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_freebsd.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^([0-9]+)\s+\S+\s+STD\s+({ \S+\s+(\w+).*)$/){
my $num = $1;
my $proto = $2;
my $name = "SYS_$3";
$name =~ y/a-z/A-Z/;
# There are multiple entries for enosys and nosys, so comment them out.
if($name =~ /^SYS_E?NOSYS$/){
$name = "// $name";
}
if($name eq 'SYS_SYS_EXIT'){
$name = 'SYS_EXIT';
}
print " $name = $num; // $proto\n";
}
}
print <<EOF;
)
EOF

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@ -1,58 +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.
#
# Generate system call table for OpenBSD from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_netbsd.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
my $line = '';
while(<>){
if($line =~ /^(.*)\\$/) {
# Handle continuation
$line = $1;
$_ =~ s/^\s+//;
$line .= $_;
} else {
# New line
$line = $_;
}
next if $line =~ /\\$/;
if($line =~ /^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$/) {
my $num = $1;
my $proto = $6;
my $compat = $8;
my $name = "$7_$9";
$name = "$7_$11" if $11 ne '';
$name =~ y/a-z/A-Z/;
if($compat eq '' || $compat eq '13' || $compat eq '30' || $compat eq '50') {
print " $name = $num; // $proto\n";
}
}
}
print <<EOF;
)
EOF

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@ -1,50 +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.
#
# Generate system call table for OpenBSD from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_openbsd.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$/){
my $num = $1;
my $proto = $3;
my $name = $4;
$name =~ y/a-z/A-Z/;
# There are multiple entries for enosys and nosys, so comment them out.
if($name =~ /^SYS_E?NOSYS$/){
$name = "// $name";
}
if($name eq 'SYS_SYS_EXIT'){
$name = 'SYS_EXIT';
}
print " $name = $num; // $proto\n";
}
}
print <<EOF;
)
EOF

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@ -1,35 +0,0 @@
// 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 darwin dragonfly freebsd linux netbsd openbsd solaris
package unix_test
import (
"testing"
"golang.org/x/sys/unix"
)
func TestMmap(t *testing.T) {
b, err := unix.Mmap(-1, 0, unix.Getpagesize(), unix.PROT_NONE, unix.MAP_ANON|unix.MAP_PRIVATE)
if err != nil {
t.Fatalf("Mmap: %v", err)
}
if err := unix.Mprotect(b, unix.PROT_READ|unix.PROT_WRITE); err != nil {
t.Fatalf("Mprotect: %v", err)
}
b[0] = 42
if err := unix.Msync(b, unix.MS_SYNC); err != nil {
t.Fatalf("Msync: %v", err)
}
if err := unix.Madvise(b, unix.MADV_DONTNEED); err != nil {
t.Fatalf("Madvise: %v", err)
}
if err := unix.Munmap(b); err != nil {
t.Fatalf("Munmap: %v", err)
}
}

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@ -1,113 +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 openbsd
// This, on the face of it, bizarre testing mechanism is necessary because
// the only reliable way to gauge whether or not a pledge(2) call has succeeded
// is that the program has been killed as a result of breaking its pledge.
package unix_test
import (
"flag"
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"testing"
"golang.org/x/sys/unix"
)
type testProc struct {
fn func() // should always exit instead of returning
cleanup func() error // for instance, delete coredumps from testing pledge
success bool // whether zero-exit means success or failure
}
var (
testProcs = map[string]testProc{}
procName = ""
)
const (
optName = "sys-unix-internal-procname"
)
func init() {
flag.StringVar(&procName, optName, "", "internal use only")
}
// testCmd generates a proper command that, when executed, runs the test
// corresponding to the given key.
func testCmd(procName string) (*exec.Cmd, error) {
exe, err := filepath.Abs(os.Args[0])
if err != nil {
return nil, err
}
cmd := exec.Command(exe, "-"+optName+"="+procName)
cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
return cmd, nil
}
// ExitsCorrectly is a comprehensive, one-line-of-use wrapper for testing
// a testProc with a key.
func ExitsCorrectly(procName string, t *testing.T) {
s := testProcs[procName]
c, err := testCmd(procName)
defer func() {
if s.cleanup() != nil {
t.Fatalf("Failed to run cleanup for %s", procName)
}
}()
if err != nil {
t.Fatalf("Failed to construct command for %s", procName)
}
if (c.Run() == nil) != s.success {
result := "succeed"
if !s.success {
result = "fail"
}
t.Fatalf("Process did not %s when it was supposed to", result)
}
}
func TestMain(m *testing.M) {
flag.Parse()
if procName != "" {
testProcs[procName].fn()
}
os.Exit(m.Run())
}
// For example, add a test for pledge.
func init() {
testProcs["pledge"] = testProc{
func() {
fmt.Println(unix.Pledge("", nil))
os.Exit(0)
},
func() error {
files, err := ioutil.ReadDir(".")
if err != nil {
return err
}
for _, file := range files {
if filepath.Ext(file.Name()) == ".core" {
if err := os.Remove(file.Name()); err != nil {
return err
}
}
}
return nil
},
false,
}
}
func TestPledge(t *testing.T) {
ExitsCorrectly("pledge", t)
}

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@ -1,93 +0,0 @@
// 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 darwin dragonfly freebsd openbsd
package unix_test
import (
"os/exec"
"runtime"
"testing"
"time"
"golang.org/x/sys/unix"
)
const MNT_WAIT = 1
const MNT_NOWAIT = 2
func TestGetfsstat(t *testing.T) {
const flags = MNT_NOWAIT // see golang.org/issue/16937
n, err := unix.Getfsstat(nil, flags)
if err != nil {
t.Fatal(err)
}
data := make([]unix.Statfs_t, n)
n2, err := unix.Getfsstat(data, flags)
if err != nil {
t.Fatal(err)
}
if n != n2 {
t.Errorf("Getfsstat(nil) = %d, but subsequent Getfsstat(slice) = %d", n, n2)
}
for i, stat := range data {
if stat == (unix.Statfs_t{}) {
t.Errorf("index %v is an empty Statfs_t struct", i)
}
}
if t.Failed() {
for i, stat := range data[:n2] {
t.Logf("data[%v] = %+v", i, stat)
}
mount, err := exec.Command("mount").CombinedOutput()
if err != nil {
t.Logf("mount: %v\n%s", err, mount)
} else {
t.Logf("mount: %s", mount)
}
}
}
func TestSelect(t *testing.T) {
err := unix.Select(0, nil, nil, nil, &unix.Timeval{Sec: 0, Usec: 0})
if err != nil {
t.Fatalf("Select: %v", err)
}
dur := 250 * time.Millisecond
tv := unix.NsecToTimeval(int64(dur))
start := time.Now()
err = unix.Select(0, nil, nil, nil, &tv)
took := time.Since(start)
if err != nil {
t.Fatalf("Select: %v", err)
}
// On some BSDs the actual timeout might also be slightly less than the requested.
// Add an acceptable margin to avoid flaky tests.
if took < dur*2/3 {
t.Errorf("Select: timeout should have been at least %v, got %v", dur, took)
}
}
func TestSysctlRaw(t *testing.T) {
if runtime.GOOS == "openbsd" {
t.Skip("kern.proc.pid does not exist on OpenBSD")
}
_, err := unix.SysctlRaw("kern.proc.pid", unix.Getpid())
if err != nil {
t.Fatal(err)
}
}
func TestSysctlUint32(t *testing.T) {
maxproc, err := unix.SysctlUint32("kern.maxproc")
if err != nil {
t.Fatal(err)
}
t.Logf("kern.maxproc: %v", maxproc)
}

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@ -1,19 +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.
package unix_test
// stringsFromByteSlice converts a sequence of attributes to a []string.
// On Darwin, each entry is a NULL-terminated string.
func stringsFromByteSlice(buf []byte) []string {
var result []string
off := 0
for i, b := range buf {
if b == 0 {
result = append(result, string(buf[off:i]))
off = i + 1
}
}
return result
}

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@ -1,312 +0,0 @@
// 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 freebsd
package unix_test
import (
"flag"
"fmt"
"io/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"runtime"
"testing"
"golang.org/x/sys/unix"
)
func TestSysctlUint64(t *testing.T) {
_, err := unix.SysctlUint64("vm.swap_total")
if err != nil {
t.Fatal(err)
}
}
// FIXME: Infrastructure for launching tests in subprocesses stolen from openbsd_test.go - refactor?
// testCmd generates a proper command that, when executed, runs the test
// corresponding to the given key.
type testProc struct {
fn func() // should always exit instead of returning
arg func(t *testing.T) string // generate argument for test
cleanup func(arg string) error // for instance, delete coredumps from testing pledge
success bool // whether zero-exit means success or failure
}
var (
testProcs = map[string]testProc{}
procName = ""
procArg = ""
)
const (
optName = "sys-unix-internal-procname"
optArg = "sys-unix-internal-arg"
)
func init() {
flag.StringVar(&procName, optName, "", "internal use only")
flag.StringVar(&procArg, optArg, "", "internal use only")
}
func testCmd(procName string, procArg string) (*exec.Cmd, error) {
exe, err := filepath.Abs(os.Args[0])
if err != nil {
return nil, err
}
cmd := exec.Command(exe, "-"+optName+"="+procName, "-"+optArg+"="+procArg)
cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
return cmd, nil
}
// ExitsCorrectly is a comprehensive, one-line-of-use wrapper for testing
// a testProc with a key.
func ExitsCorrectly(t *testing.T, procName string) {
s := testProcs[procName]
arg := "-"
if s.arg != nil {
arg = s.arg(t)
}
c, err := testCmd(procName, arg)
defer func(arg string) {
if err := s.cleanup(arg); err != nil {
t.Fatalf("Failed to run cleanup for %s %s %#v", procName, err, err)
}
}(arg)
if err != nil {
t.Fatalf("Failed to construct command for %s", procName)
}
if (c.Run() == nil) != s.success {
result := "succeed"
if !s.success {
result = "fail"
}
t.Fatalf("Process did not %s when it was supposed to", result)
}
}
func TestMain(m *testing.M) {
flag.Parse()
if procName != "" {
t := testProcs[procName]
t.fn()
os.Stderr.WriteString("test function did not exit\n")
if t.success {
os.Exit(1)
} else {
os.Exit(0)
}
}
os.Exit(m.Run())
}
// end of infrastructure
const testfile = "gocapmodetest"
const testfile2 = testfile + "2"
func CapEnterTest() {
_, err := os.OpenFile(path.Join(procArg, testfile), os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
panic(fmt.Sprintf("OpenFile: %s", err))
}
err = unix.CapEnter()
if err != nil {
panic(fmt.Sprintf("CapEnter: %s", err))
}
_, err = os.OpenFile(path.Join(procArg, testfile2), os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err == nil {
panic("OpenFile works!")
}
if err.(*os.PathError).Err != unix.ECAPMODE {
panic(fmt.Sprintf("OpenFile failed wrong: %s %#v", err, err))
}
os.Exit(0)
}
func makeTempDir(t *testing.T) string {
d, err := ioutil.TempDir("", "go_openat_test")
if err != nil {
t.Fatalf("TempDir failed: %s", err)
}
return d
}
func removeTempDir(arg string) error {
err := os.RemoveAll(arg)
if err != nil && err.(*os.PathError).Err == unix.ENOENT {
return nil
}
return err
}
func init() {
testProcs["cap_enter"] = testProc{
CapEnterTest,
makeTempDir,
removeTempDir,
true,
}
}
func TestCapEnter(t *testing.T) {
if runtime.GOARCH != "amd64" {
t.Skipf("skipping test on %s", runtime.GOARCH)
}
ExitsCorrectly(t, "cap_enter")
}
func OpenatTest() {
f, err := os.Open(procArg)
if err != nil {
panic(err)
}
err = unix.CapEnter()
if err != nil {
panic(fmt.Sprintf("CapEnter: %s", err))
}
fxx, err := unix.Openat(int(f.Fd()), "xx", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
panic(err)
}
unix.Close(fxx)
// The right to open BASE/xx is not ambient
_, err = os.OpenFile(procArg+"/xx", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err == nil {
panic("OpenFile succeeded")
}
if err.(*os.PathError).Err != unix.ECAPMODE {
panic(fmt.Sprintf("OpenFile failed wrong: %s %#v", err, err))
}
// Can't make a new directory either
err = os.Mkdir(procArg+"2", 0777)
if err == nil {
panic("MKdir succeeded")
}
if err.(*os.PathError).Err != unix.ECAPMODE {
panic(fmt.Sprintf("Mkdir failed wrong: %s %#v", err, err))
}
// Remove all caps except read and lookup.
r, err := unix.CapRightsInit([]uint64{unix.CAP_READ, unix.CAP_LOOKUP})
if err != nil {
panic(fmt.Sprintf("CapRightsInit failed: %s %#v", err, err))
}
err = unix.CapRightsLimit(f.Fd(), r)
if err != nil {
panic(fmt.Sprintf("CapRightsLimit failed: %s %#v", err, err))
}
// Check we can get the rights back again
r, err = unix.CapRightsGet(f.Fd())
if err != nil {
panic(fmt.Sprintf("CapRightsGet failed: %s %#v", err, err))
}
b, err := unix.CapRightsIsSet(r, []uint64{unix.CAP_READ, unix.CAP_LOOKUP})
if err != nil {
panic(fmt.Sprintf("CapRightsIsSet failed: %s %#v", err, err))
}
if !b {
panic(fmt.Sprintf("Unexpected rights"))
}
b, err = unix.CapRightsIsSet(r, []uint64{unix.CAP_READ, unix.CAP_LOOKUP, unix.CAP_WRITE})
if err != nil {
panic(fmt.Sprintf("CapRightsIsSet failed: %s %#v", err, err))
}
if b {
panic(fmt.Sprintf("Unexpected rights (2)"))
}
// Can no longer create a file
_, err = unix.Openat(int(f.Fd()), "xx2", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err == nil {
panic("Openat succeeded")
}
if err != unix.ENOTCAPABLE {
panic(fmt.Sprintf("OpenFileAt failed wrong: %s %#v", err, err))
}
// But can read an existing one
_, err = unix.Openat(int(f.Fd()), "xx", os.O_RDONLY, 0666)
if err != nil {
panic(fmt.Sprintf("Openat failed: %s %#v", err, err))
}
os.Exit(0)
}
func init() {
testProcs["openat"] = testProc{
OpenatTest,
makeTempDir,
removeTempDir,
true,
}
}
func TestOpenat(t *testing.T) {
if runtime.GOARCH != "amd64" {
t.Skipf("skipping test on %s", runtime.GOARCH)
}
ExitsCorrectly(t, "openat")
}
func TestCapRightsSetAndClear(t *testing.T) {
r, err := unix.CapRightsInit([]uint64{unix.CAP_READ, unix.CAP_WRITE, unix.CAP_PDWAIT})
if err != nil {
t.Fatalf("CapRightsInit failed: %s", err)
}
err = unix.CapRightsSet(r, []uint64{unix.CAP_EVENT, unix.CAP_LISTEN})
if err != nil {
t.Fatalf("CapRightsSet failed: %s", err)
}
b, err := unix.CapRightsIsSet(r, []uint64{unix.CAP_READ, unix.CAP_WRITE, unix.CAP_PDWAIT, unix.CAP_EVENT, unix.CAP_LISTEN})
if err != nil {
t.Fatalf("CapRightsIsSet failed: %s", err)
}
if !b {
t.Fatalf("Wrong rights set")
}
err = unix.CapRightsClear(r, []uint64{unix.CAP_READ, unix.CAP_PDWAIT})
if err != nil {
t.Fatalf("CapRightsClear failed: %s", err)
}
b, err = unix.CapRightsIsSet(r, []uint64{unix.CAP_WRITE, unix.CAP_EVENT, unix.CAP_LISTEN})
if err != nil {
t.Fatalf("CapRightsIsSet failed: %s", err)
}
if !b {
t.Fatalf("Wrong rights set")
}
}
// stringsFromByteSlice converts a sequence of attributes to a []string.
// On FreeBSD, each entry consists of a single byte containing the length
// of the attribute name, followed by the attribute name.
// The name is _not_ NULL-terminated.
func stringsFromByteSlice(buf []byte) []string {
var result []string
i := 0
for i < len(buf) {
next := i + 1 + int(buf[i])
result = append(result, string(buf[i+1:next]))
i = next
}
return result
}

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@ -1,421 +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 linux
package unix_test
import (
"os"
"runtime"
"runtime/debug"
"testing"
"time"
"golang.org/x/sys/unix"
)
func TestIoctlGetInt(t *testing.T) {
f, err := os.Open("/dev/random")
if err != nil {
t.Fatalf("failed to open device: %v", err)
}
defer f.Close()
v, err := unix.IoctlGetInt(int(f.Fd()), unix.RNDGETENTCNT)
if err != nil {
t.Fatalf("failed to perform ioctl: %v", err)
}
t.Logf("%d bits of entropy available", v)
}
func TestPpoll(t *testing.T) {
if runtime.GOOS == "android" {
t.Skip("mkfifo syscall is not available on android, skipping test")
}
f, cleanup := mktmpfifo(t)
defer cleanup()
const timeout = 100 * time.Millisecond
ok := make(chan bool, 1)
go func() {
select {
case <-time.After(10 * timeout):
t.Errorf("Ppoll: failed to timeout after %d", 10*timeout)
case <-ok:
}
}()
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
timeoutTs := unix.NsecToTimespec(int64(timeout))
n, err := unix.Ppoll(fds, &timeoutTs, nil)
ok <- true
if err != nil {
t.Errorf("Ppoll: unexpected error: %v", err)
return
}
if n != 0 {
t.Errorf("Ppoll: wrong number of events: got %v, expected %v", n, 0)
return
}
}
func TestTime(t *testing.T) {
var ut unix.Time_t
ut2, err := unix.Time(&ut)
if err != nil {
t.Fatalf("Time: %v", err)
}
if ut != ut2 {
t.Errorf("Time: return value %v should be equal to argument %v", ut2, ut)
}
var now time.Time
for i := 0; i < 10; i++ {
ut, err = unix.Time(nil)
if err != nil {
t.Fatalf("Time: %v", err)
}
now = time.Now()
if int64(ut) == now.Unix() {
return
}
}
t.Errorf("Time: return value %v should be nearly equal to time.Now().Unix() %v", ut, now.Unix())
}
func TestUtime(t *testing.T) {
defer chtmpdir(t)()
touch(t, "file1")
buf := &unix.Utimbuf{
Modtime: 12345,
}
err := unix.Utime("file1", buf)
if err != nil {
t.Fatalf("Utime: %v", err)
}
fi, err := os.Stat("file1")
if err != nil {
t.Fatal(err)
}
if fi.ModTime().Unix() != 12345 {
t.Errorf("Utime: failed to change modtime: expected %v, got %v", 12345, fi.ModTime().Unix())
}
}
func TestUtimesNanoAt(t *testing.T) {
defer chtmpdir(t)()
symlink := "symlink1"
os.Remove(symlink)
err := os.Symlink("nonexisting", symlink)
if err != nil {
t.Fatal(err)
}
ts := []unix.Timespec{
{Sec: 1111, Nsec: 2222},
{Sec: 3333, Nsec: 4444},
}
err = unix.UtimesNanoAt(unix.AT_FDCWD, symlink, ts, unix.AT_SYMLINK_NOFOLLOW)
if err != nil {
t.Fatalf("UtimesNanoAt: %v", err)
}
var st unix.Stat_t
err = unix.Lstat(symlink, &st)
if err != nil {
t.Fatalf("Lstat: %v", err)
}
// Only check Mtim, Atim might not be supported by the underlying filesystem
expected := ts[1]
if st.Mtim.Nsec == 0 {
// Some filesystems only support 1-second time stamp resolution
// and will always set Nsec to 0.
expected.Nsec = 0
}
if st.Mtim != expected {
t.Errorf("UtimesNanoAt: wrong mtime: expected %v, got %v", expected, st.Mtim)
}
}
func TestRlimitAs(t *testing.T) {
// disable GC during to avoid flaky test
defer debug.SetGCPercent(debug.SetGCPercent(-1))
var rlim unix.Rlimit
err := unix.Getrlimit(unix.RLIMIT_AS, &rlim)
if err != nil {
t.Fatalf("Getrlimit: %v", err)
}
var zero unix.Rlimit
if zero == rlim {
t.Fatalf("Getrlimit: got zero value %#v", rlim)
}
set := rlim
set.Cur = uint64(unix.Getpagesize())
err = unix.Setrlimit(unix.RLIMIT_AS, &set)
if err != nil {
t.Fatalf("Setrlimit: set failed: %#v %v", set, err)
}
// RLIMIT_AS was set to the page size, so mmap()'ing twice the page size
// should fail. See 'man 2 getrlimit'.
_, err = unix.Mmap(-1, 0, 2*unix.Getpagesize(), unix.PROT_NONE, unix.MAP_ANON|unix.MAP_PRIVATE)
if err == nil {
t.Fatal("Mmap: unexpectedly suceeded after setting RLIMIT_AS")
}
err = unix.Setrlimit(unix.RLIMIT_AS, &rlim)
if err != nil {
t.Fatalf("Setrlimit: restore failed: %#v %v", rlim, err)
}
b, err := unix.Mmap(-1, 0, 2*unix.Getpagesize(), unix.PROT_NONE, unix.MAP_ANON|unix.MAP_PRIVATE)
if err != nil {
t.Fatalf("Mmap: %v", err)
}
err = unix.Munmap(b)
if err != nil {
t.Fatalf("Munmap: %v", err)
}
}
func TestSelect(t *testing.T) {
_, err := unix.Select(0, nil, nil, nil, &unix.Timeval{Sec: 0, Usec: 0})
if err != nil {
t.Fatalf("Select: %v", err)
}
dur := 150 * time.Millisecond
tv := unix.NsecToTimeval(int64(dur))
start := time.Now()
_, err = unix.Select(0, nil, nil, nil, &tv)
took := time.Since(start)
if err != nil {
t.Fatalf("Select: %v", err)
}
if took < dur {
t.Errorf("Select: timeout should have been at least %v, got %v", dur, took)
}
}
func TestPselect(t *testing.T) {
_, err := unix.Pselect(0, nil, nil, nil, &unix.Timespec{Sec: 0, Nsec: 0}, nil)
if err != nil {
t.Fatalf("Pselect: %v", err)
}
dur := 2500 * time.Microsecond
ts := unix.NsecToTimespec(int64(dur))
start := time.Now()
_, err = unix.Pselect(0, nil, nil, nil, &ts, nil)
took := time.Since(start)
if err != nil {
t.Fatalf("Pselect: %v", err)
}
if took < dur {
t.Errorf("Pselect: timeout should have been at least %v, got %v", dur, took)
}
}
func TestSchedSetaffinity(t *testing.T) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var oldMask unix.CPUSet
err := unix.SchedGetaffinity(0, &oldMask)
if err != nil {
t.Fatalf("SchedGetaffinity: %v", err)
}
var newMask unix.CPUSet
newMask.Zero()
if newMask.Count() != 0 {
t.Errorf("CpuZero: didn't zero CPU set: %v", newMask)
}
cpu := 1
newMask.Set(cpu)
if newMask.Count() != 1 || !newMask.IsSet(cpu) {
t.Errorf("CpuSet: didn't set CPU %d in set: %v", cpu, newMask)
}
cpu = 5
newMask.Set(cpu)
if newMask.Count() != 2 || !newMask.IsSet(cpu) {
t.Errorf("CpuSet: didn't set CPU %d in set: %v", cpu, newMask)
}
newMask.Clear(cpu)
if newMask.Count() != 1 || newMask.IsSet(cpu) {
t.Errorf("CpuClr: didn't clear CPU %d in set: %v", cpu, newMask)
}
if runtime.NumCPU() < 2 {
t.Skip("skipping setaffinity tests on single CPU system")
}
if runtime.GOOS == "android" {
t.Skip("skipping setaffinity tests on android")
}
err = unix.SchedSetaffinity(0, &newMask)
if err != nil {
t.Fatalf("SchedSetaffinity: %v", err)
}
var gotMask unix.CPUSet
err = unix.SchedGetaffinity(0, &gotMask)
if err != nil {
t.Fatalf("SchedGetaffinity: %v", err)
}
if gotMask != newMask {
t.Errorf("SchedSetaffinity: returned affinity mask does not match set affinity mask")
}
// Restore old mask so it doesn't affect successive tests
err = unix.SchedSetaffinity(0, &oldMask)
if err != nil {
t.Fatalf("SchedSetaffinity: %v", err)
}
}
func TestStatx(t *testing.T) {
var stx unix.Statx_t
err := unix.Statx(unix.AT_FDCWD, ".", 0, 0, &stx)
if err == unix.ENOSYS || err == unix.EPERM {
t.Skip("statx syscall is not available, skipping test")
} else if err != nil {
t.Fatalf("Statx: %v", err)
}
defer chtmpdir(t)()
touch(t, "file1")
var st unix.Stat_t
err = unix.Stat("file1", &st)
if err != nil {
t.Fatalf("Stat: %v", err)
}
flags := unix.AT_STATX_SYNC_AS_STAT
err = unix.Statx(unix.AT_FDCWD, "file1", flags, unix.STATX_ALL, &stx)
if err != nil {
t.Fatalf("Statx: %v", err)
}
if uint32(stx.Mode) != st.Mode {
t.Errorf("Statx: returned stat mode does not match Stat")
}
ctime := unix.StatxTimestamp{Sec: int64(st.Ctim.Sec), Nsec: uint32(st.Ctim.Nsec)}
mtime := unix.StatxTimestamp{Sec: int64(st.Mtim.Sec), Nsec: uint32(st.Mtim.Nsec)}
if stx.Ctime != ctime {
t.Errorf("Statx: returned stat ctime does not match Stat")
}
if stx.Mtime != mtime {
t.Errorf("Statx: returned stat mtime does not match Stat")
}
err = os.Symlink("file1", "symlink1")
if err != nil {
t.Fatal(err)
}
err = unix.Lstat("symlink1", &st)
if err != nil {
t.Fatalf("Lstat: %v", err)
}
err = unix.Statx(unix.AT_FDCWD, "symlink1", flags, unix.STATX_BASIC_STATS, &stx)
if err != nil {
t.Fatalf("Statx: %v", err)
}
// follow symlink, expect a regulat file
if stx.Mode&unix.S_IFREG == 0 {
t.Errorf("Statx: didn't follow symlink")
}
err = unix.Statx(unix.AT_FDCWD, "symlink1", flags|unix.AT_SYMLINK_NOFOLLOW, unix.STATX_ALL, &stx)
if err != nil {
t.Fatalf("Statx: %v", err)
}
// follow symlink, expect a symlink
if stx.Mode&unix.S_IFLNK == 0 {
t.Errorf("Statx: unexpectedly followed symlink")
}
if uint32(stx.Mode) != st.Mode {
t.Errorf("Statx: returned stat mode does not match Lstat")
}
ctime = unix.StatxTimestamp{Sec: int64(st.Ctim.Sec), Nsec: uint32(st.Ctim.Nsec)}
mtime = unix.StatxTimestamp{Sec: int64(st.Mtim.Sec), Nsec: uint32(st.Mtim.Nsec)}
if stx.Ctime != ctime {
t.Errorf("Statx: returned stat ctime does not match Lstat")
}
if stx.Mtime != mtime {
t.Errorf("Statx: returned stat mtime does not match Lstat")
}
}
// stringsFromByteSlice converts a sequence of attributes to a []string.
// On Linux, each entry is a NULL-terminated string.
func stringsFromByteSlice(buf []byte) []string {
var result []string
off := 0
for i, b := range buf {
if b == 0 {
result = append(result, string(buf[off:i]))
off = i + 1
}
}
return result
}
func TestFaccessat(t *testing.T) {
defer chtmpdir(t)()
touch(t, "file1")
err := unix.Faccessat(unix.AT_FDCWD, "file1", unix.O_RDONLY, 0)
if err != nil {
t.Errorf("Faccessat: unexpected error: %v", err)
}
err = unix.Faccessat(unix.AT_FDCWD, "file1", unix.O_RDONLY, 2)
if err != unix.EINVAL {
t.Errorf("Faccessat: unexpected error: %v, want EINVAL", err)
}
err = unix.Faccessat(unix.AT_FDCWD, "file1", unix.O_RDONLY, unix.AT_EACCESS)
if err != unix.EOPNOTSUPP {
t.Errorf("Faccessat: unexpected error: %v, want EOPNOTSUPP", err)
}
err = os.Symlink("file1", "symlink1")
if err != nil {
t.Fatal(err)
}
err = unix.Faccessat(unix.AT_FDCWD, "symlink1", unix.O_RDONLY, unix.AT_SYMLINK_NOFOLLOW)
if err != unix.EOPNOTSUPP {
t.Errorf("Faccessat: unexpected error: %v, want EOPNOTSUPP", err)
}
}

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@ -1,55 +0,0 @@
// Copyright 2017 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 solaris
package unix_test
import (
"os/exec"
"testing"
"time"
"golang.org/x/sys/unix"
)
func TestSelect(t *testing.T) {
err := unix.Select(0, nil, nil, nil, &unix.Timeval{Sec: 0, Usec: 0})
if err != nil {
t.Fatalf("Select: %v", err)
}
dur := 150 * time.Millisecond
tv := unix.NsecToTimeval(int64(dur))
start := time.Now()
err = unix.Select(0, nil, nil, nil, &tv)
took := time.Since(start)
if err != nil {
t.Fatalf("Select: %v", err)
}
if took < dur {
t.Errorf("Select: timeout should have been at least %v, got %v", dur, took)
}
}
func TestStatvfs(t *testing.T) {
if err := unix.Statvfs("", nil); err == nil {
t.Fatal(`Statvfs("") expected failure`)
}
statvfs := unix.Statvfs_t{}
if err := unix.Statvfs("/", &statvfs); err != nil {
t.Errorf(`Statvfs("/") failed: %v`, err)
}
if t.Failed() {
mount, err := exec.Command("mount").CombinedOutput()
if err != nil {
t.Logf("mount: %v\n%s", err, mount)
} else {
t.Logf("mount: %s", mount)
}
}
}

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@ -1,60 +0,0 @@
// Copyright 2013 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 dragonfly freebsd linux netbsd openbsd solaris
package unix_test
import (
"fmt"
"testing"
"golang.org/x/sys/unix"
)
func testSetGetenv(t *testing.T, key, value string) {
err := unix.Setenv(key, value)
if err != nil {
t.Fatalf("Setenv failed to set %q: %v", value, err)
}
newvalue, found := unix.Getenv(key)
if !found {
t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
}
if newvalue != value {
t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
}
}
func TestEnv(t *testing.T) {
testSetGetenv(t, "TESTENV", "AVALUE")
// make sure TESTENV gets set to "", not deleted
testSetGetenv(t, "TESTENV", "")
}
func TestItoa(t *testing.T) {
// Make most negative integer: 0x8000...
i := 1
for i<<1 != 0 {
i <<= 1
}
if i >= 0 {
t.Fatal("bad math")
}
s := unix.Itoa(i)
f := fmt.Sprint(i)
if s != f {
t.Fatalf("itoa(%d) = %s, want %s", i, s, f)
}
}
func TestUname(t *testing.T) {
var utsname unix.Utsname
err := unix.Uname(&utsname)
if err != nil {
t.Fatalf("Uname: %v", err)
}
t.Logf("OS: %s/%s %s", utsname.Sysname[:], utsname.Machine[:], utsname.Release[:])
}

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@ -1,657 +0,0 @@
// Copyright 2013 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 dragonfly freebsd linux netbsd openbsd solaris
package unix_test
import (
"flag"
"fmt"
"io/ioutil"
"net"
"os"
"os/exec"
"path/filepath"
"runtime"
"syscall"
"testing"
"time"
"golang.org/x/sys/unix"
)
// Tests that below functions, structures and constants are consistent
// on all Unix-like systems.
func _() {
// program scheduling priority functions and constants
var (
_ func(int, int, int) error = unix.Setpriority
_ func(int, int) (int, error) = unix.Getpriority
)
const (
_ int = unix.PRIO_USER
_ int = unix.PRIO_PROCESS
_ int = unix.PRIO_PGRP
)
// termios constants
const (
_ int = unix.TCIFLUSH
_ int = unix.TCIOFLUSH
_ int = unix.TCOFLUSH
)
// fcntl file locking structure and constants
var (
_ = unix.Flock_t{
Type: int16(0),
Whence: int16(0),
Start: int64(0),
Len: int64(0),
Pid: int32(0),
}
)
const (
_ = unix.F_GETLK
_ = unix.F_SETLK
_ = unix.F_SETLKW
)
}
func TestErrnoSignalName(t *testing.T) {
testErrors := []struct {
num syscall.Errno
name string
}{
{syscall.EPERM, "EPERM"},
{syscall.EINVAL, "EINVAL"},
{syscall.ENOENT, "ENOENT"},
}
for _, te := range testErrors {
t.Run(fmt.Sprintf("%d/%s", te.num, te.name), func(t *testing.T) {
e := unix.ErrnoName(te.num)
if e != te.name {
t.Errorf("ErrnoName(%d) returned %s, want %s", te.num, e, te.name)
}
})
}
testSignals := []struct {
num syscall.Signal
name string
}{
{syscall.SIGHUP, "SIGHUP"},
{syscall.SIGPIPE, "SIGPIPE"},
{syscall.SIGSEGV, "SIGSEGV"},
}
for _, ts := range testSignals {
t.Run(fmt.Sprintf("%d/%s", ts.num, ts.name), func(t *testing.T) {
s := unix.SignalName(ts.num)
if s != ts.name {
t.Errorf("SignalName(%d) returned %s, want %s", ts.num, s, ts.name)
}
})
}
}
func TestFcntlInt(t *testing.T) {
t.Parallel()
file, err := ioutil.TempFile("", "TestFnctlInt")
if err != nil {
t.Fatal(err)
}
defer os.Remove(file.Name())
defer file.Close()
f := file.Fd()
flags, err := unix.FcntlInt(f, unix.F_GETFD, 0)
if err != nil {
t.Fatal(err)
}
if flags&unix.FD_CLOEXEC == 0 {
t.Errorf("flags %#x do not include FD_CLOEXEC", flags)
}
}
// TestFcntlFlock tests whether the file locking structure matches
// the calling convention of each kernel.
func TestFcntlFlock(t *testing.T) {
name := filepath.Join(os.TempDir(), "TestFcntlFlock")
fd, err := unix.Open(name, unix.O_CREAT|unix.O_RDWR|unix.O_CLOEXEC, 0)
if err != nil {
t.Fatalf("Open failed: %v", err)
}
defer unix.Unlink(name)
defer unix.Close(fd)
flock := unix.Flock_t{
Type: unix.F_RDLCK,
Start: 0, Len: 0, Whence: 1,
}
if err := unix.FcntlFlock(uintptr(fd), unix.F_GETLK, &flock); err != nil {
t.Fatalf("FcntlFlock failed: %v", err)
}
}
// TestPassFD tests passing a file descriptor over a Unix socket.
//
// This test involved both a parent and child process. The parent
// process is invoked as a normal test, with "go test", which then
// runs the child process by running the current test binary with args
// "-test.run=^TestPassFD$" and an environment variable used to signal
// that the test should become the child process instead.
func TestPassFD(t *testing.T) {
if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") {
t.Skip("cannot exec subprocess on iOS, skipping test")
}
if os.Getenv("GO_WANT_HELPER_PROCESS") == "1" {
passFDChild()
return
}
tempDir, err := ioutil.TempDir("", "TestPassFD")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tempDir)
fds, err := unix.Socketpair(unix.AF_LOCAL, unix.SOCK_STREAM, 0)
if err != nil {
t.Fatalf("Socketpair: %v", err)
}
defer unix.Close(fds[0])
defer unix.Close(fds[1])
writeFile := os.NewFile(uintptr(fds[0]), "child-writes")
readFile := os.NewFile(uintptr(fds[1]), "parent-reads")
defer writeFile.Close()
defer readFile.Close()
cmd := exec.Command(os.Args[0], "-test.run=^TestPassFD$", "--", tempDir)
cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
if lp := os.Getenv("LD_LIBRARY_PATH"); lp != "" {
cmd.Env = append(cmd.Env, "LD_LIBRARY_PATH="+lp)
}
cmd.ExtraFiles = []*os.File{writeFile}
out, err := cmd.CombinedOutput()
if len(out) > 0 || err != nil {
t.Fatalf("child process: %q, %v", out, err)
}
c, err := net.FileConn(readFile)
if err != nil {
t.Fatalf("FileConn: %v", err)
}
defer c.Close()
uc, ok := c.(*net.UnixConn)
if !ok {
t.Fatalf("unexpected FileConn type; expected UnixConn, got %T", c)
}
buf := make([]byte, 32) // expect 1 byte
oob := make([]byte, 32) // expect 24 bytes
closeUnix := time.AfterFunc(5*time.Second, func() {
t.Logf("timeout reading from unix socket")
uc.Close()
})
_, oobn, _, _, err := uc.ReadMsgUnix(buf, oob)
if err != nil {
t.Fatalf("ReadMsgUnix: %v", err)
}
closeUnix.Stop()
scms, err := unix.ParseSocketControlMessage(oob[:oobn])
if err != nil {
t.Fatalf("ParseSocketControlMessage: %v", err)
}
if len(scms) != 1 {
t.Fatalf("expected 1 SocketControlMessage; got scms = %#v", scms)
}
scm := scms[0]
gotFds, err := unix.ParseUnixRights(&scm)
if err != nil {
t.Fatalf("unix.ParseUnixRights: %v", err)
}
if len(gotFds) != 1 {
t.Fatalf("wanted 1 fd; got %#v", gotFds)
}
f := os.NewFile(uintptr(gotFds[0]), "fd-from-child")
defer f.Close()
got, err := ioutil.ReadAll(f)
want := "Hello from child process!\n"
if string(got) != want {
t.Errorf("child process ReadAll: %q, %v; want %q", got, err, want)
}
}
// passFDChild is the child process used by TestPassFD.
func passFDChild() {
defer os.Exit(0)
// Look for our fd. It should be fd 3, but we work around an fd leak
// bug here (http://golang.org/issue/2603) to let it be elsewhere.
var uc *net.UnixConn
for fd := uintptr(3); fd <= 10; fd++ {
f := os.NewFile(fd, "unix-conn")
var ok bool
netc, _ := net.FileConn(f)
uc, ok = netc.(*net.UnixConn)
if ok {
break
}
}
if uc == nil {
fmt.Println("failed to find unix fd")
return
}
// Make a file f to send to our parent process on uc.
// We make it in tempDir, which our parent will clean up.
flag.Parse()
tempDir := flag.Arg(0)
f, err := ioutil.TempFile(tempDir, "")
if err != nil {
fmt.Printf("TempFile: %v", err)
return
}
f.Write([]byte("Hello from child process!\n"))
f.Seek(0, 0)
rights := unix.UnixRights(int(f.Fd()))
dummyByte := []byte("x")
n, oobn, err := uc.WriteMsgUnix(dummyByte, rights, nil)
if err != nil {
fmt.Printf("WriteMsgUnix: %v", err)
return
}
if n != 1 || oobn != len(rights) {
fmt.Printf("WriteMsgUnix = %d, %d; want 1, %d", n, oobn, len(rights))
return
}
}
// TestUnixRightsRoundtrip tests that UnixRights, ParseSocketControlMessage,
// and ParseUnixRights are able to successfully round-trip lists of file descriptors.
func TestUnixRightsRoundtrip(t *testing.T) {
testCases := [...][][]int{
{{42}},
{{1, 2}},
{{3, 4, 5}},
{{}},
{{1, 2}, {3, 4, 5}, {}, {7}},
}
for _, testCase := range testCases {
b := []byte{}
var n int
for _, fds := range testCase {
// Last assignment to n wins
n = len(b) + unix.CmsgLen(4*len(fds))
b = append(b, unix.UnixRights(fds...)...)
}
// Truncate b
b = b[:n]
scms, err := unix.ParseSocketControlMessage(b)
if err != nil {
t.Fatalf("ParseSocketControlMessage: %v", err)
}
if len(scms) != len(testCase) {
t.Fatalf("expected %v SocketControlMessage; got scms = %#v", len(testCase), scms)
}
for i, scm := range scms {
gotFds, err := unix.ParseUnixRights(&scm)
if err != nil {
t.Fatalf("ParseUnixRights: %v", err)
}
wantFds := testCase[i]
if len(gotFds) != len(wantFds) {
t.Fatalf("expected %v fds, got %#v", len(wantFds), gotFds)
}
for j, fd := range gotFds {
if fd != wantFds[j] {
t.Fatalf("expected fd %v, got %v", wantFds[j], fd)
}
}
}
}
}
func TestRlimit(t *testing.T) {
var rlimit, zero unix.Rlimit
err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rlimit)
if err != nil {
t.Fatalf("Getrlimit: save failed: %v", err)
}
if zero == rlimit {
t.Fatalf("Getrlimit: save failed: got zero value %#v", rlimit)
}
set := rlimit
set.Cur = set.Max - 1
err = unix.Setrlimit(unix.RLIMIT_NOFILE, &set)
if err != nil {
t.Fatalf("Setrlimit: set failed: %#v %v", set, err)
}
var get unix.Rlimit
err = unix.Getrlimit(unix.RLIMIT_NOFILE, &get)
if err != nil {
t.Fatalf("Getrlimit: get failed: %v", err)
}
set = rlimit
set.Cur = set.Max - 1
if set != get {
// Seems like Darwin requires some privilege to
// increase the soft limit of rlimit sandbox, though
// Setrlimit never reports an error.
switch runtime.GOOS {
case "darwin":
default:
t.Fatalf("Rlimit: change failed: wanted %#v got %#v", set, get)
}
}
err = unix.Setrlimit(unix.RLIMIT_NOFILE, &rlimit)
if err != nil {
t.Fatalf("Setrlimit: restore failed: %#v %v", rlimit, err)
}
}
func TestSeekFailure(t *testing.T) {
_, err := unix.Seek(-1, 0, 0)
if err == nil {
t.Fatalf("Seek(-1, 0, 0) did not fail")
}
str := err.Error() // used to crash on Linux
t.Logf("Seek: %v", str)
if str == "" {
t.Fatalf("Seek(-1, 0, 0) return error with empty message")
}
}
func TestDup(t *testing.T) {
file, err := ioutil.TempFile("", "TestDup")
if err != nil {
t.Fatalf("Tempfile failed: %v", err)
}
defer os.Remove(file.Name())
defer file.Close()
f := int(file.Fd())
newFd, err := unix.Dup(f)
if err != nil {
t.Fatalf("Dup: %v", err)
}
err = unix.Dup2(newFd, newFd+1)
if err != nil {
t.Fatalf("Dup2: %v", err)
}
b1 := []byte("Test123")
b2 := make([]byte, 7)
_, err = unix.Write(newFd+1, b1)
if err != nil {
t.Fatalf("Write to dup2 fd failed: %v", err)
}
_, err = unix.Seek(f, 0, 0)
if err != nil {
t.Fatalf("Seek failed: %v", err)
}
_, err = unix.Read(f, b2)
if err != nil {
t.Fatalf("Read back failed: %v", err)
}
if string(b1) != string(b2) {
t.Errorf("Dup: stdout write not in file, expected %v, got %v", string(b1), string(b2))
}
}
func TestPoll(t *testing.T) {
if runtime.GOOS == "android" ||
(runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64")) {
t.Skip("mkfifo syscall is not available on android and iOS, skipping test")
}
f, cleanup := mktmpfifo(t)
defer cleanup()
const timeout = 100
ok := make(chan bool, 1)
go func() {
select {
case <-time.After(10 * timeout * time.Millisecond):
t.Errorf("Poll: failed to timeout after %d milliseconds", 10*timeout)
case <-ok:
}
}()
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
n, err := unix.Poll(fds, timeout)
ok <- true
if err != nil {
t.Errorf("Poll: unexpected error: %v", err)
return
}
if n != 0 {
t.Errorf("Poll: wrong number of events: got %v, expected %v", n, 0)
return
}
}
func TestGetwd(t *testing.T) {
fd, err := os.Open(".")
if err != nil {
t.Fatalf("Open .: %s", err)
}
defer fd.Close()
// These are chosen carefully not to be symlinks on a Mac
// (unlike, say, /var, /etc)
dirs := []string{"/", "/usr/bin"}
switch runtime.GOOS {
case "android":
dirs = []string{"/", "/system/bin"}
case "darwin":
switch runtime.GOARCH {
case "arm", "arm64":
d1, err := ioutil.TempDir("", "d1")
if err != nil {
t.Fatalf("TempDir: %v", err)
}
d2, err := ioutil.TempDir("", "d2")
if err != nil {
t.Fatalf("TempDir: %v", err)
}
dirs = []string{d1, d2}
}
}
oldwd := os.Getenv("PWD")
for _, d := range dirs {
err = os.Chdir(d)
if err != nil {
t.Fatalf("Chdir: %v", err)
}
pwd, err := unix.Getwd()
if err != nil {
t.Fatalf("Getwd in %s: %s", d, err)
}
os.Setenv("PWD", oldwd)
err = fd.Chdir()
if err != nil {
// We changed the current directory and cannot go back.
// Don't let the tests continue; they'll scribble
// all over some other directory.
fmt.Fprintf(os.Stderr, "fchdir back to dot failed: %s\n", err)
os.Exit(1)
}
if pwd != d {
t.Fatalf("Getwd returned %q want %q", pwd, d)
}
}
}
func TestFstatat(t *testing.T) {
defer chtmpdir(t)()
touch(t, "file1")
var st1 unix.Stat_t
err := unix.Stat("file1", &st1)
if err != nil {
t.Fatalf("Stat: %v", err)
}
var st2 unix.Stat_t
err = unix.Fstatat(unix.AT_FDCWD, "file1", &st2, 0)
if err != nil {
t.Fatalf("Fstatat: %v", err)
}
if st1 != st2 {
t.Errorf("Fstatat: returned stat does not match Stat")
}
err = os.Symlink("file1", "symlink1")
if err != nil {
t.Fatal(err)
}
err = unix.Lstat("symlink1", &st1)
if err != nil {
t.Fatalf("Lstat: %v", err)
}
err = unix.Fstatat(unix.AT_FDCWD, "symlink1", &st2, unix.AT_SYMLINK_NOFOLLOW)
if err != nil {
t.Fatalf("Fstatat: %v", err)
}
if st1 != st2 {
t.Errorf("Fstatat: returned stat does not match Lstat")
}
}
func TestFchmodat(t *testing.T) {
defer chtmpdir(t)()
touch(t, "file1")
err := os.Symlink("file1", "symlink1")
if err != nil {
t.Fatal(err)
}
mode := os.FileMode(0444)
err = unix.Fchmodat(unix.AT_FDCWD, "symlink1", uint32(mode), 0)
if err != nil {
t.Fatalf("Fchmodat: unexpected error: %v", err)
}
fi, err := os.Stat("file1")
if err != nil {
t.Fatal(err)
}
if fi.Mode() != mode {
t.Errorf("Fchmodat: failed to change file mode: expected %v, got %v", mode, fi.Mode())
}
mode = os.FileMode(0644)
didChmodSymlink := true
err = unix.Fchmodat(unix.AT_FDCWD, "symlink1", uint32(mode), unix.AT_SYMLINK_NOFOLLOW)
if err != nil {
if (runtime.GOOS == "android" || runtime.GOOS == "linux" || runtime.GOOS == "solaris") && err == unix.EOPNOTSUPP {
// Linux and Illumos don't support flags != 0
didChmodSymlink = false
} else {
t.Fatalf("Fchmodat: unexpected error: %v", err)
}
}
if !didChmodSymlink {
// Didn't change mode of the symlink. On Linux, the permissions
// of a symbolic link are always 0777 according to symlink(7)
mode = os.FileMode(0777)
}
var st unix.Stat_t
err = unix.Lstat("symlink1", &st)
if err != nil {
t.Fatal(err)
}
got := os.FileMode(st.Mode & 0777)
if got != mode {
t.Errorf("Fchmodat: failed to change symlink mode: expected %v, got %v", mode, got)
}
}
func TestMkdev(t *testing.T) {
major := uint32(42)
minor := uint32(7)
dev := unix.Mkdev(major, minor)
if unix.Major(dev) != major {
t.Errorf("Major(%#x) == %d, want %d", dev, unix.Major(dev), major)
}
if unix.Minor(dev) != minor {
t.Errorf("Minor(%#x) == %d, want %d", dev, unix.Minor(dev), minor)
}
}
// mktmpfifo creates a temporary FIFO and provides a cleanup function.
func mktmpfifo(t *testing.T) (*os.File, func()) {
err := unix.Mkfifo("fifo", 0666)
if err != nil {
t.Fatalf("mktmpfifo: failed to create FIFO: %v", err)
}
f, err := os.OpenFile("fifo", os.O_RDWR, 0666)
if err != nil {
os.Remove("fifo")
t.Fatalf("mktmpfifo: failed to open FIFO: %v", err)
}
return f, func() {
f.Close()
os.Remove("fifo")
}
}
// utilities taken from os/os_test.go
func touch(t *testing.T, name string) {
f, err := os.Create(name)
if err != nil {
t.Fatal(err)
}
if err := f.Close(); err != nil {
t.Fatal(err)
}
}
// chtmpdir changes the working directory to a new temporary directory and
// provides a cleanup function. Used when PWD is read-only.
func chtmpdir(t *testing.T) func() {
oldwd, err := os.Getwd()
if err != nil {
t.Fatalf("chtmpdir: %v", err)
}
d, err := ioutil.TempDir("", "test")
if err != nil {
t.Fatalf("chtmpdir: %v", err)
}
if err := os.Chdir(d); err != nil {
t.Fatalf("chtmpdir: %v", err)
}
return func() {
if err := os.Chdir(oldwd); err != nil {
t.Fatalf("chtmpdir: %v", err)
}
os.RemoveAll(d)
}
}

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@ -1,54 +0,0 @@
// Copyright 2017 The Go Authors. All right reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package unix_test
import (
"testing"
"time"
"unsafe"
"golang.org/x/sys/unix"
)
func TestTimeToTimespec(t *testing.T) {
timeTests := []struct {
time time.Time
valid bool
}{
{time.Unix(0, 0), true},
{time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC), true},
{time.Date(2262, time.December, 31, 23, 0, 0, 0, time.UTC), false},
{time.Unix(0x7FFFFFFF, 0), true},
{time.Unix(0x80000000, 0), false},
{time.Unix(0x7FFFFFFF, 1000000000), false},
{time.Unix(0x7FFFFFFF, 999999999), true},
{time.Unix(-0x80000000, 0), true},
{time.Unix(-0x80000001, 0), false},
{time.Date(2038, time.January, 19, 3, 14, 7, 0, time.UTC), true},
{time.Date(2038, time.January, 19, 3, 14, 8, 0, time.UTC), false},
{time.Date(1901, time.December, 13, 20, 45, 52, 0, time.UTC), true},
{time.Date(1901, time.December, 13, 20, 45, 51, 0, time.UTC), false},
}
// Currently all targets have either int32 or int64 for Timespec.Sec.
// If there were a new target with unsigned or floating point type for
// it, this test must be adjusted.
have64BitTime := (unsafe.Sizeof(unix.Timespec{}.Sec) == 8)
for _, tt := range timeTests {
ts, err := unix.TimeToTimespec(tt.time)
tt.valid = tt.valid || have64BitTime
if tt.valid && err != nil {
t.Errorf("TimeToTimespec(%v): %v", tt.time, err)
}
if err == nil {
tstime := time.Unix(int64(ts.Sec), int64(ts.Nsec))
if !tstime.Equal(tt.time) {
t.Errorf("TimeToTimespec(%v) is the time %v", tt.time, tstime)
}
}
}
}

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@ -1,119 +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 darwin freebsd linux
package unix_test
import (
"os"
"runtime"
"strings"
"testing"
"golang.org/x/sys/unix"
)
func TestXattr(t *testing.T) {
defer chtmpdir(t)()
f := "xattr1"
touch(t, f)
xattrName := "user.test"
xattrDataSet := "gopher"
err := unix.Setxattr(f, xattrName, []byte(xattrDataSet), 0)
if err == unix.ENOTSUP || err == unix.EOPNOTSUPP {
t.Skip("filesystem does not support extended attributes, skipping test")
} else if err != nil {
t.Fatalf("Setxattr: %v", err)
}
// find size
size, err := unix.Listxattr(f, nil)
if err != nil {
t.Fatalf("Listxattr: %v", err)
}
if size <= 0 {
t.Fatalf("Listxattr returned an empty list of attributes")
}
buf := make([]byte, size)
read, err := unix.Listxattr(f, buf)
if err != nil {
t.Fatalf("Listxattr: %v", err)
}
xattrs := stringsFromByteSlice(buf[:read])
xattrWant := xattrName
if runtime.GOOS == "freebsd" {
// On FreeBSD, the namespace is stored separately from the xattr
// name and Listxattr doesn't return the namespace prefix.
xattrWant = strings.TrimPrefix(xattrWant, "user.")
}
found := false
for _, name := range xattrs {
if name == xattrWant {
found = true
}
}
if !found {
t.Errorf("Listxattr did not return previously set attribute '%s'", xattrName)
}
// find size
size, err = unix.Getxattr(f, xattrName, nil)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
if size <= 0 {
t.Fatalf("Getxattr returned an empty attribute")
}
xattrDataGet := make([]byte, size)
_, err = unix.Getxattr(f, xattrName, xattrDataGet)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
got := string(xattrDataGet)
if got != xattrDataSet {
t.Errorf("Getxattr: expected attribute value %s, got %s", xattrDataSet, got)
}
err = unix.Removexattr(f, xattrName)
if err != nil {
t.Fatalf("Removexattr: %v", err)
}
n := "nonexistent"
err = unix.Lsetxattr(n, xattrName, []byte(xattrDataSet), 0)
if err != unix.ENOENT {
t.Errorf("Lsetxattr: expected %v on non-existent file, got %v", unix.ENOENT, err)
}
_, err = unix.Lgetxattr(n, xattrName, nil)
if err != unix.ENOENT {
t.Errorf("Lgetxattr: %v", err)
}
s := "symlink1"
err = os.Symlink(n, s)
if err != nil {
t.Fatal(err)
}
err = unix.Lsetxattr(s, xattrName, []byte(xattrDataSet), 0)
if err != nil {
// Linux and Android doen't support xattrs on symlinks according
// to xattr(7), so just test that we get the proper error.
if (runtime.GOOS != "linux" && runtime.GOOS != "android") || err != unix.EPERM {
t.Fatalf("Lsetxattr: %v", err)
}
}
}