vendor/github.com/fsouza/go-dockerclient/external/golang.org/x/sys/unix/mkall.sh

   1 #!/usr/bin/env bash
   2 # Copyright 2009 The Go Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style
   4 # license that can be found in the LICENSE file.
   5
   6 # The unix package provides access to the raw system call
   7 # interface of the underlying operating system.  Porting Go to
   8 # a new architecture/operating system combination requires
   9 # some manual effort, though there are tools that automate
  10 # much of the process.  The auto-generated files have names
  11 # beginning with z.
  12 #
  13 # This script runs or (given -n) prints suggested commands to generate z files
  14 # for the current system.  Running those commands is not automatic.
  15 # This script is documentation more than anything else.
  16 #
  17 # * asm_${GOOS}_${GOARCH}.s
  18 #
  19 # This hand-written assembly file implements system call dispatch.
  20 # There are three entry points:
  21 #
  22 #       func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
  23 #       func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
  24 #       func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
  25 #
  26 # The first and second are the standard ones; they differ only in
  27 # how many arguments can be passed to the kernel.
  28 # The third is for low-level use by the ForkExec wrapper;
  29 # unlike the first two, it does not call into the scheduler to
  30 # let it know that a system call is running.
  31 #
  32 # * syscall_${GOOS}.go
  33 #
  34 # This hand-written Go file implements system calls that need
  35 # special handling and lists "//sys" comments giving prototypes
  36 # for ones that can be auto-generated.  Mksyscall reads those
  37 # comments to generate the stubs.
  38 #
  39 # * syscall_${GOOS}_${GOARCH}.go
  40 #
  41 # Same as syscall_${GOOS}.go except that it contains code specific
  42 # to ${GOOS} on one particular architecture.
  43 #
  44 # * types_${GOOS}.c
  45 #
  46 # This hand-written C file includes standard C headers and then
  47 # creates typedef or enum names beginning with a dollar sign
  48 # (use of $ in variable names is a gcc extension).  The hardest
  49 # part about preparing this file is figuring out which headers to
  50 # include and which symbols need to be #defined to get the
  51 # actual data structures that pass through to the kernel system calls.
  52 # Some C libraries present alternate versions for binary compatibility
  53 # and translate them on the way in and out of system calls, but
  54 # there is almost always a #define that can get the real ones.
  55 # See types_darwin.c and types_linux.c for examples.
  56 #
  57 # * zerror_${GOOS}_${GOARCH}.go
  58 #
  59 # This machine-generated file defines the system's error numbers,
  60 # error strings, and signal numbers.  The generator is "mkerrors.sh".
  61 # Usually no arguments are needed, but mkerrors.sh will pass its
  62 # arguments on to godefs.
  63 #
  64 # * zsyscall_${GOOS}_${GOARCH}.go
  65 #
  66 # Generated by mksyscall.pl; see syscall_${GOOS}.go above.
  67 #
  68 # * zsysnum_${GOOS}_${GOARCH}.go
  69 #
  70 # Generated by mksysnum_${GOOS}.
  71 #
  72 # * ztypes_${GOOS}_${GOARCH}.go
  73 #
  74 # Generated by godefs; see types_${GOOS}.c above.
  75
  76 GOOSARCH="${GOOS}_${GOARCH}"
  77
  78 # defaults
  79 mksyscall="./mksyscall.pl"
  80 mkerrors="./mkerrors.sh"
  81 zerrors="zerrors_$GOOSARCH.go"
  82 mksysctl=""
  83 zsysctl="zsysctl_$GOOSARCH.go"
  84 mksysnum=
  85 mktypes=
  86 run="sh"
  87
  88 case "$1" in
  89 -syscalls)
  90         for i in zsyscall*go
  91         do
  92                 sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
  93                 rm _$i
  94         done
  95         exit 0
  96         ;;
  97 -n)
  98         run="cat"
  99         shift
 100 esac
 101
 102 case "$#" in
 103 0)
 104         ;;
 105 *)
 106         echo 'usage: mkall.sh [-n]' 1>&2
 107         exit 2
 108 esac
 109
 110 GOOSARCH_in=syscall_$GOOSARCH.go
 111 case "$GOOSARCH" in
 112 _* | *_ | _)
 113         echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
 114         exit 1
 115         ;;
 116 darwin_386)
 117         mkerrors="$mkerrors -m32"
 118         mksyscall="./mksyscall.pl -l32"
 119         mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
 120         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 121         ;;
 122 darwin_amd64)
 123         mkerrors="$mkerrors -m64"
 124         mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
 125         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 126         ;;
 127 darwin_arm)
 128         mkerrors="$mkerrors"
 129         mksysnum="./mksysnum_darwin.pl /usr/include/sys/syscall.h"
 130         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 131         ;;
 132 darwin_arm64)
 133         mkerrors="$mkerrors -m64"
 134         mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
 135         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 136         ;;
 137 dragonfly_386)
 138         mkerrors="$mkerrors -m32"
 139         mksyscall="./mksyscall.pl -l32 -dragonfly"
 140         mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
 141         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 142         ;;
 143 dragonfly_amd64)
 144         mkerrors="$mkerrors -m64"
 145         mksyscall="./mksyscall.pl -dragonfly"
 146         mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
 147         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 148         ;;
 149 freebsd_386)
 150         mkerrors="$mkerrors -m32"
 151         mksyscall="./mksyscall.pl -l32"
 152         mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
 153         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 154         ;;
 155 freebsd_amd64)
 156         mkerrors="$mkerrors -m64"
 157         mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
 158         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 159         ;;
 160 freebsd_arm)
 161         mkerrors="$mkerrors"
 162         mksyscall="./mksyscall.pl -l32 -arm"
 163         mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
 164         # Let the type of C char be singed for making the bare syscall
 165         # API consistent across over platforms.
 166         mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
 167         ;;
 168 linux_386)
 169         mkerrors="$mkerrors -m32"
 170         mksyscall="./mksyscall.pl -l32"
 171         mksysnum="./mksysnum_linux.pl /usr/include/asm/unistd_32.h"
 172         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 173         ;;
 174 linux_amd64)
 175         unistd_h=$(ls -1 /usr/include/asm/unistd_64.h /usr/include/x86_64-linux-gnu/asm/unistd_64.h 2>/dev/null | head -1)
 176         if [ "$unistd_h" = "" ]; then
 177                 echo >&2 cannot find unistd_64.h
 178                 exit 1
 179         fi
 180         mkerrors="$mkerrors -m64"
 181         mksysnum="./mksysnum_linux.pl $unistd_h"
 182         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 183         ;;
 184 linux_arm)
 185         mkerrors="$mkerrors"
 186         mksyscall="./mksyscall.pl -l32 -arm"
 187         mksysnum="curl -s 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/plain/arch/arm/include/uapi/asm/unistd.h' | ./mksysnum_linux.pl -"
 188         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 189         ;;
 190 linux_arm64)
 191         unistd_h=$(ls -1 /usr/include/asm/unistd.h /usr/include/asm-generic/unistd.h 2>/dev/null | head -1)
 192         if [ "$unistd_h" = "" ]; then
 193                 echo >&2 cannot find unistd_64.h
 194                 exit 1
 195         fi
 196         mksysnum="./mksysnum_linux.pl $unistd_h"
 197         # Let the type of C char be singed for making the bare syscall
 198         # API consistent across over platforms.
 199         mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
 200         ;;
 201 linux_ppc64)
 202         GOOSARCH_in=syscall_linux_ppc64x.go
 203         unistd_h=/usr/include/asm/unistd.h
 204         mkerrors="$mkerrors -m64"
 205         mksysnum="./mksysnum_linux.pl $unistd_h"
 206         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 207         ;;
 208 linux_ppc64le)
 209         GOOSARCH_in=syscall_linux_ppc64x.go
 210         unistd_h=/usr/include/powerpc64le-linux-gnu/asm/unistd.h
 211         mkerrors="$mkerrors -m64"
 212         mksysnum="./mksysnum_linux.pl $unistd_h"
 213         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 214         ;;
 215 netbsd_386)
 216         mkerrors="$mkerrors -m32"
 217         mksyscall="./mksyscall.pl -l32 -netbsd"
 218         mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
 219         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 220         ;;
 221 netbsd_amd64)
 222         mkerrors="$mkerrors -m64"
 223         mksyscall="./mksyscall.pl -netbsd"
 224         mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
 225         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 226         ;;
 227 openbsd_386)
 228         mkerrors="$mkerrors -m32"
 229         mksyscall="./mksyscall.pl -l32 -openbsd"
 230         mksysctl="./mksysctl_openbsd.pl"
 231         zsysctl="zsysctl_openbsd.go"
 232         mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
 233         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 234         ;;
 235 openbsd_amd64)
 236         mkerrors="$mkerrors -m64"
 237         mksyscall="./mksyscall.pl -openbsd"
 238         mksysctl="./mksysctl_openbsd.pl"
 239         zsysctl="zsysctl_openbsd.go"
 240         mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
 241         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 242         ;;
 243 solaris_amd64)
 244         mksyscall="./mksyscall_solaris.pl"
 245         mkerrors="$mkerrors -m64"
 246         mksysnum=
 247         mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 248         ;;
 249 *)
 250         echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
 251         exit 1
 252         ;;
 253 esac
 254
 255 (
 256         if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
 257         case "$GOOS" in
 258         *)
 259                 syscall_goos="syscall_$GOOS.go"
 260                 case "$GOOS" in
 261                 darwin | dragonfly | freebsd | netbsd | openbsd)
 262                         syscall_goos="syscall_bsd.go $syscall_goos"
 263                         ;;
 264                 esac
 265                 if [ -n "$mksyscall" ]; then echo "$mksyscall $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go"; fi
 266                 ;;
 267         esac
 268         if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
 269         if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
 270         if [ -n "$mktypes" ]; then
 271                 echo "echo // +build $GOARCH,$GOOS > ztypes_$GOOSARCH.go";
 272                 echo "$mktypes types_$GOOS.go | gofmt >>ztypes_$GOOSARCH.go";
 273         fi
 274 ) | $run