unix: generate all Linux go files from source

Right now the process for adding in new constants, errors, or syscalls
for Linux is a pain and unreliable. The scripts are designed to be run
on the target architecture and use the header files installed on the
user's system. This makes it hard to generate files for all the
architectures or to have consistency between users. See golang/go#15282.

This CL fixes this issue by making all of the files for the 11 supported
architectures directly from source checkouts of Linux, glibc, and bluez.
This is done using Docker, the gcc cross-compilers, and qemu emulation.
Previously discussed here:
    https://go-review.googlesource.com/c/37589/

A README.md file is also added to explain how all the parts of the build
system work.

In order to get the build working for all the architectures, I made
some changes to the other scripts called from mkall_linux.go:
  - Files only used for generating linux code, moved to linux/
  - linux/mksysnum.pl supports a specified CC compiler.
  - The generated C code in mkerrors.sh changed to avoid a warning
  - mkerrors.sh headers changed to fix powerpc64 bug in sys/ioctl.h
  - linux/types.go no longer needs to export Ptrace structs in lowercase

Build instructions:
  - Host system needs to be x86-64 Linux
  - Install Docker (https://docs.docker.com/engine/installation/)
  - ./mkall.sh (That's it!!!)

Change-Id: I87067c14442ba12f8d51991349a43a9d73f38ae0
Reviewed-on: https://go-review.googlesource.com/37943
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Joe Richey
2017-04-21 00:52:44 +00:00
committed by Brad Fitzpatrick
parent f3918c30c5
commit ea9bcade75
65 changed files with 2672 additions and 726 deletions
+48
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FROM ubuntu:16.04
# Dependencies to get the git sources and go binaries
RUN apt-get update && apt-get install -y \
curl \
git \
&& 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 19 Feb 2017
RUN git clone --branch v4.10 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
# GNU C library: Released 05 Feb 2017 (we should try to get a secure way to clone this)
RUN git clone --branch glibc-2.25 --depth 1 git://sourceware.org/git/glibc.git
# Get Go 1.8 (https://github.com/docker-library/golang/blob/master/1.8/Dockerfile)
ENV GOLANG_VERSION 1.8
ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
ENV GOLANG_DOWNLOAD_SHA256 53ab94104ee3923e228a2cb2116e5e462ad3ebaeea06ff04463479d7f12d27ca
RUN curl -fsSL "$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
RUN apt-get update && apt-get install -y \
gawk make python \
gcc gcc-multilib \
gettext texinfo \
&& rm -rf /var/lib/apt/lists/*
# Emulator and cross compilers
RUN apt-get update && apt-get install -y \
qemu \
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 \
&& 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 (
"fmt"
"os"
"os/exec"
"path/filepath"
"runtime"
"strings"
)
// 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,
// },
}
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)
}
}
}
// 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 and glibc 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()
}
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
}
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#!/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
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// 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.
// +build ignore
/*
Input to cgo -godefs. See README.md
*/
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package unix
/*
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#define _FILE_OFFSET_BITS 64
#define _GNU_SOURCE
#include <dirent.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netpacket/packet.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <sys/epoll.h>
#include <sys/inotify.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/param.h>
#include <sys/ptrace.h>
#include <sys/resource.h>
#include <sys/select.h>
#include <sys/signal.h>
#include <sys/statfs.h>
#include <sys/sysinfo.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/timex.h>
#include <sys/un.h>
#include <sys/user.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <linux/filter.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/icmpv6.h>
#include <asm/termbits.h>
#include <asm/ptrace.h>
#include <time.h>
#include <unistd.h>
#include <ustat.h>
#include <utime.h>
#include <linux/can.h>
#include <linux/if_alg.h>
#include <linux/vm_sockets.h>
// On mips64, the glibc stat and kernel stat do not agree
#if (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI64)
// Use the stat defined by the kernel with a few modifications. These are:
// * The time fields (like st_atime and st_atimensec) use the timespec
// struct (like st_atim) for consitancy with the glibc fields.
// * The padding fields get different names to not break compatibility.
// * st_blocks is signed, again for compatibility.
struct stat {
unsigned int st_dev;
unsigned int st_pad1[3]; // Reserved for st_dev expansion
unsigned long st_ino;
mode_t st_mode;
__u32 st_nlink;
uid_t st_uid;
gid_t st_gid;
unsigned int st_rdev;
unsigned int st_pad2[3]; // Reserved for st_rdev expansion
off_t st_size;
// These are declared as speperate fields in the kernel. Here we use
// the timespec struct for consistancy with the other stat structs.
struct timespec st_atim;
struct timespec st_mtim;
struct timespec st_ctim;
unsigned int st_blksize;
unsigned int st_pad4;
long st_blocks;
};
// These are needed because we do not include fcntl.h or sys/types.h
#include <linux/fcntl.h>
#include <linux/fadvise.h>
#else
// Use the stat defined by glibc
#include <fcntl.h>
#include <sys/types.h>
#endif
#ifdef TCSETS2
// On systems that have "struct termios2" use this as type Termios.
typedef struct termios2 termios_t;
#else
typedef struct termios termios_t;
#endif
enum {
sizeofPtr = sizeof(void*),
};
union sockaddr_all {
struct sockaddr s1; // this one gets used for fields
struct sockaddr_in s2; // these pad it out
struct sockaddr_in6 s3;
struct sockaddr_un s4;
struct sockaddr_ll s5;
struct sockaddr_nl s6;
};
struct sockaddr_any {
struct sockaddr addr;
char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
};
// copied from /usr/include/bluetooth/hci.h
struct sockaddr_hci {
sa_family_t hci_family;
unsigned short hci_dev;
unsigned short hci_channel;
};;
// copied from /usr/include/linux/un.h
struct my_sockaddr_un {
sa_family_t sun_family;
#if defined(__ARM_EABI__) || defined(__powerpc64__)
// on ARM char is by default unsigned
signed char sun_path[108];
#else
char sun_path[108];
#endif
};
#ifdef __ARM_EABI__
typedef struct user_regs PtraceRegs;
#elif defined(__aarch64__)
typedef struct user_pt_regs PtraceRegs;
#elif defined(__powerpc64__)
typedef struct pt_regs PtraceRegs;
#elif defined(__mips__)
typedef struct user PtraceRegs;
#elif defined(__s390x__)
typedef struct _user_regs_struct PtraceRegs;
#elif defined(__sparc__)
#include <asm/ptrace.h>
typedef struct pt_regs PtraceRegs;
#else
typedef struct user_regs_struct PtraceRegs;
#endif
#if defined(__s390x__)
typedef struct _user_psw_struct ptracePsw;
typedef struct _user_fpregs_struct ptraceFpregs;
typedef struct _user_per_struct ptracePer;
#else
typedef struct {} ptracePsw;
typedef struct {} ptraceFpregs;
typedef struct {} ptracePer;
#endif
// The real epoll_event is a union, and godefs doesn't handle it well.
struct my_epoll_event {
uint32_t events;
#if defined(__ARM_EABI__) || defined(__aarch64__) || (defined(__mips__) && _MIPS_SIM == _ABIO32)
// padding is not specified in linux/eventpoll.h but added to conform to the
// alignment requirements of EABI
int32_t padFd;
#elif defined(__powerpc64__) || defined(__s390x__) || defined(__sparc__)
int32_t _padFd;
#endif
int32_t fd;
int32_t pad;
};
*/
import "C"
// Machine characteristics; for internal use.
const (
sizeofPtr = C.sizeofPtr
sizeofShort = C.sizeof_short
sizeofInt = C.sizeof_int
sizeofLong = C.sizeof_long
sizeofLongLong = C.sizeof_longlong
PathMax = C.PATH_MAX
)
// Basic types
type (
_C_short C.short
_C_int C.int
_C_long C.long
_C_long_long C.longlong
)
// Time
type Timespec C.struct_timespec
type Timeval C.struct_timeval
type Timex C.struct_timex
type Time_t C.time_t
type Tms C.struct_tms
type Utimbuf C.struct_utimbuf
// Processes
type Rusage C.struct_rusage
type Rlimit C.struct_rlimit
type _Gid_t C.gid_t
// Files
type Stat_t C.struct_stat
type Statfs_t C.struct_statfs
type Dirent C.struct_dirent
type Fsid C.fsid_t
type Flock_t C.struct_flock
// Advice to Fadvise
const (
FADV_NORMAL = C.POSIX_FADV_NORMAL
FADV_RANDOM = C.POSIX_FADV_RANDOM
FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL
FADV_WILLNEED = C.POSIX_FADV_WILLNEED
FADV_DONTNEED = C.POSIX_FADV_DONTNEED
FADV_NOREUSE = C.POSIX_FADV_NOREUSE
)
// Sockets
type RawSockaddrInet4 C.struct_sockaddr_in
type RawSockaddrInet6 C.struct_sockaddr_in6
type RawSockaddrUnix C.struct_my_sockaddr_un
type RawSockaddrLinklayer C.struct_sockaddr_ll
type RawSockaddrNetlink C.struct_sockaddr_nl
type RawSockaddrHCI C.struct_sockaddr_hci
type RawSockaddrCAN C.struct_sockaddr_can
type RawSockaddrALG C.struct_sockaddr_alg
type RawSockaddrVM C.struct_sockaddr_vm
type RawSockaddr C.struct_sockaddr
type RawSockaddrAny C.struct_sockaddr_any
type _Socklen C.socklen_t
type Linger C.struct_linger
type Iovec C.struct_iovec
type IPMreq C.struct_ip_mreq
type IPMreqn C.struct_ip_mreqn
type IPv6Mreq C.struct_ipv6_mreq
type Msghdr C.struct_msghdr
type Cmsghdr C.struct_cmsghdr
type Inet4Pktinfo C.struct_in_pktinfo
type Inet6Pktinfo C.struct_in6_pktinfo
type IPv6MTUInfo C.struct_ip6_mtuinfo
type ICMPv6Filter C.struct_icmp6_filter
type Ucred C.struct_ucred
type TCPInfo C.struct_tcp_info
const (
SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in
SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
SizeofSockaddrAny = C.sizeof_struct_sockaddr_any
SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un
SizeofSockaddrLinklayer = C.sizeof_struct_sockaddr_ll
SizeofSockaddrNetlink = C.sizeof_struct_sockaddr_nl
SizeofSockaddrHCI = C.sizeof_struct_sockaddr_hci
SizeofSockaddrCAN = C.sizeof_struct_sockaddr_can
SizeofSockaddrALG = C.sizeof_struct_sockaddr_alg
SizeofSockaddrVM = C.sizeof_struct_sockaddr_vm
SizeofLinger = C.sizeof_struct_linger
SizeofIPMreq = C.sizeof_struct_ip_mreq
SizeofIPMreqn = C.sizeof_struct_ip_mreqn
SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq
SizeofMsghdr = C.sizeof_struct_msghdr
SizeofCmsghdr = C.sizeof_struct_cmsghdr
SizeofInet4Pktinfo = C.sizeof_struct_in_pktinfo
SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo
SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo
SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
SizeofUcred = C.sizeof_struct_ucred
SizeofTCPInfo = C.sizeof_struct_tcp_info
)
// Netlink routing and interface messages
const (
IFA_UNSPEC = C.IFA_UNSPEC
IFA_ADDRESS = C.IFA_ADDRESS
IFA_LOCAL = C.IFA_LOCAL
IFA_LABEL = C.IFA_LABEL
IFA_BROADCAST = C.IFA_BROADCAST
IFA_ANYCAST = C.IFA_ANYCAST
IFA_CACHEINFO = C.IFA_CACHEINFO
IFA_MULTICAST = C.IFA_MULTICAST
IFLA_UNSPEC = C.IFLA_UNSPEC
IFLA_ADDRESS = C.IFLA_ADDRESS
IFLA_BROADCAST = C.IFLA_BROADCAST
IFLA_IFNAME = C.IFLA_IFNAME
IFLA_MTU = C.IFLA_MTU
IFLA_LINK = C.IFLA_LINK
IFLA_QDISC = C.IFLA_QDISC
IFLA_STATS = C.IFLA_STATS
IFLA_COST = C.IFLA_COST
IFLA_PRIORITY = C.IFLA_PRIORITY
IFLA_MASTER = C.IFLA_MASTER
IFLA_WIRELESS = C.IFLA_WIRELESS
IFLA_PROTINFO = C.IFLA_PROTINFO
IFLA_TXQLEN = C.IFLA_TXQLEN
IFLA_MAP = C.IFLA_MAP
IFLA_WEIGHT = C.IFLA_WEIGHT
IFLA_OPERSTATE = C.IFLA_OPERSTATE
IFLA_LINKMODE = C.IFLA_LINKMODE
IFLA_LINKINFO = C.IFLA_LINKINFO
IFLA_NET_NS_PID = C.IFLA_NET_NS_PID
IFLA_IFALIAS = C.IFLA_IFALIAS
IFLA_MAX = C.IFLA_MAX
RT_SCOPE_UNIVERSE = C.RT_SCOPE_UNIVERSE
RT_SCOPE_SITE = C.RT_SCOPE_SITE
RT_SCOPE_LINK = C.RT_SCOPE_LINK
RT_SCOPE_HOST = C.RT_SCOPE_HOST
RT_SCOPE_NOWHERE = C.RT_SCOPE_NOWHERE
RT_TABLE_UNSPEC = C.RT_TABLE_UNSPEC
RT_TABLE_COMPAT = C.RT_TABLE_COMPAT
RT_TABLE_DEFAULT = C.RT_TABLE_DEFAULT
RT_TABLE_MAIN = C.RT_TABLE_MAIN
RT_TABLE_LOCAL = C.RT_TABLE_LOCAL
RT_TABLE_MAX = C.RT_TABLE_MAX
RTA_UNSPEC = C.RTA_UNSPEC
RTA_DST = C.RTA_DST
RTA_SRC = C.RTA_SRC
RTA_IIF = C.RTA_IIF
RTA_OIF = C.RTA_OIF
RTA_GATEWAY = C.RTA_GATEWAY
RTA_PRIORITY = C.RTA_PRIORITY
RTA_PREFSRC = C.RTA_PREFSRC
RTA_METRICS = C.RTA_METRICS
RTA_MULTIPATH = C.RTA_MULTIPATH
RTA_FLOW = C.RTA_FLOW
RTA_CACHEINFO = C.RTA_CACHEINFO
RTA_TABLE = C.RTA_TABLE
RTN_UNSPEC = C.RTN_UNSPEC
RTN_UNICAST = C.RTN_UNICAST
RTN_LOCAL = C.RTN_LOCAL
RTN_BROADCAST = C.RTN_BROADCAST
RTN_ANYCAST = C.RTN_ANYCAST
RTN_MULTICAST = C.RTN_MULTICAST
RTN_BLACKHOLE = C.RTN_BLACKHOLE
RTN_UNREACHABLE = C.RTN_UNREACHABLE
RTN_PROHIBIT = C.RTN_PROHIBIT
RTN_THROW = C.RTN_THROW
RTN_NAT = C.RTN_NAT
RTN_XRESOLVE = C.RTN_XRESOLVE
RTNLGRP_NONE = C.RTNLGRP_NONE
RTNLGRP_LINK = C.RTNLGRP_LINK
RTNLGRP_NOTIFY = C.RTNLGRP_NOTIFY
RTNLGRP_NEIGH = C.RTNLGRP_NEIGH
RTNLGRP_TC = C.RTNLGRP_TC
RTNLGRP_IPV4_IFADDR = C.RTNLGRP_IPV4_IFADDR
RTNLGRP_IPV4_MROUTE = C.RTNLGRP_IPV4_MROUTE
RTNLGRP_IPV4_ROUTE = C.RTNLGRP_IPV4_ROUTE
RTNLGRP_IPV4_RULE = C.RTNLGRP_IPV4_RULE
RTNLGRP_IPV6_IFADDR = C.RTNLGRP_IPV6_IFADDR
RTNLGRP_IPV6_MROUTE = C.RTNLGRP_IPV6_MROUTE
RTNLGRP_IPV6_ROUTE = C.RTNLGRP_IPV6_ROUTE
RTNLGRP_IPV6_IFINFO = C.RTNLGRP_IPV6_IFINFO
RTNLGRP_IPV6_PREFIX = C.RTNLGRP_IPV6_PREFIX
RTNLGRP_IPV6_RULE = C.RTNLGRP_IPV6_RULE
RTNLGRP_ND_USEROPT = C.RTNLGRP_ND_USEROPT
SizeofNlMsghdr = C.sizeof_struct_nlmsghdr
SizeofNlMsgerr = C.sizeof_struct_nlmsgerr
SizeofRtGenmsg = C.sizeof_struct_rtgenmsg
SizeofNlAttr = C.sizeof_struct_nlattr
SizeofRtAttr = C.sizeof_struct_rtattr
SizeofIfInfomsg = C.sizeof_struct_ifinfomsg
SizeofIfAddrmsg = C.sizeof_struct_ifaddrmsg
SizeofRtMsg = C.sizeof_struct_rtmsg
SizeofRtNexthop = C.sizeof_struct_rtnexthop
)
type NlMsghdr C.struct_nlmsghdr
type NlMsgerr C.struct_nlmsgerr
type RtGenmsg C.struct_rtgenmsg
type NlAttr C.struct_nlattr
type RtAttr C.struct_rtattr
type IfInfomsg C.struct_ifinfomsg
type IfAddrmsg C.struct_ifaddrmsg
type RtMsg C.struct_rtmsg
type RtNexthop C.struct_rtnexthop
// Linux socket filter
const (
SizeofSockFilter = C.sizeof_struct_sock_filter
SizeofSockFprog = C.sizeof_struct_sock_fprog
)
type SockFilter C.struct_sock_filter
type SockFprog C.struct_sock_fprog
// Inotify
type InotifyEvent C.struct_inotify_event
const SizeofInotifyEvent = C.sizeof_struct_inotify_event
// Ptrace
// Register structures
type PtraceRegs C.PtraceRegs
// Structures contained in PtraceRegs on s390x (exported by mkpost.go)
type PtracePsw C.ptracePsw
type PtraceFpregs C.ptraceFpregs
type PtracePer C.ptracePer
// Misc
type FdSet C.fd_set
type Sysinfo_t C.struct_sysinfo
type Utsname C.struct_utsname
type Ustat_t C.struct_ustat
type EpollEvent C.struct_my_epoll_event
const (
AT_FDCWD = C.AT_FDCWD
AT_REMOVEDIR = C.AT_REMOVEDIR
AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW
AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
)
type PollFd C.struct_pollfd
const (
POLLIN = C.POLLIN
POLLPRI = C.POLLPRI
POLLOUT = C.POLLOUT
POLLRDHUP = C.POLLRDHUP
POLLERR = C.POLLERR
POLLHUP = C.POLLHUP
POLLNVAL = C.POLLNVAL
)
type Sigset_t C.sigset_t
// sysconf information
const _SC_PAGESIZE = C._SC_PAGESIZE
// Terminal handling
type Termios C.termios_t