libgo/mksysinfo.sh

   1 #!/bin/sh
   2
   3 # Copyright 2009 The Go Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style
   5 # license that can be found in the LICENSE file.
   6
   7 # Create sysinfo.go from gen-sysinfo.go and errno.i.
   8
   9 # This shell script creates the sysinfo.go file which holds types and
  10 # constants extracted from the system header files.  This reads the
  11 # raw data from gen-sysinfo.go which is generated using the
  12 # -fdump-go-spec option.
  13
  14 # This currently exposes some names that ideally should not be
  15 # exposed, as they match grep patterns.  E.g., WCHAR_MIN gets exposed
  16 # because it starts with W, like the wait flags.
  17
  18 OUT=tmp-sysinfo.go
  19
  20 set -e
  21
  22 echo 'package syscall' > ${OUT}
  23 echo 'import "unsafe"' >> ${OUT}
  24 echo 'type _ unsafe.Pointer' >> ${OUT}
  25
  26 # Get all the consts and types, skipping ones which could not be
  27 # represented in Go and ones which we need to rewrite.  We also skip
  28 # function declarations, as we don't need them here.  All the symbols
  29 # will all have a leading underscore.
  30 grep -v '^// ' gen-sysinfo.go | \
  31   grep -v '^func' | \
  32   grep -v '^var' | \
  33   grep -v '^type _timeval ' | \
  34   grep -v '^type _timespec_t ' | \
  35   grep -v '^type _timespec ' | \
  36   grep -v '^type _timestruc_t ' | \
  37   grep -v '^type _epoll_' | \
  38   grep -v '^type _*locale[_ ]' | \
  39   grep -v 'in6_addr' | \
  40   grep -v 'sockaddr_in6' | \
  41   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
  42       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  43       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  44       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
  45     >> ${OUT}
  46
  47 # On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
  48 # a field of type _in6_addr, but other types depend on _arpcom, so we need to
  49 # put it back.
  50 grep '^type _arpcom ' gen-sysinfo.go | \
  51   sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
  52
  53 # Same on Solaris for _mld_hdr_t.
  54 grep '^type _mld_hdr_t ' gen-sysinfo.go | \
  55   sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
  56
  57 # The errno constants.  These get type Errno.
  58 egrep '#define E[A-Z0-9_]+ [0-9E]' errno.i | \
  59   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
  60
  61 # Workaround for GNU/Hurd _EMIG_* errors having negative values
  62 egrep '#define E[A-Z0-9_]+ -[0-9]' errno.i | \
  63   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(-_\1)/' >> ${OUT}
  64
  65 # The O_xxx flags.
  66 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
  67   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
  68 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
  69   echo "const O_ASYNC = 0" >> ${OUT}
  70 fi
  71 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  72   echo "const O_CLOEXEC = 0" >> ${OUT}
  73 fi
  74
  75 # The os package requires F_DUPFD_CLOEXEC to be defined.
  76 if ! grep '^const F_DUPFD_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  77   echo "const F_DUPFD_CLOEXEC = 0" >> ${OUT}
  78 fi
  79
  80 # The internal/poll package requires F_GETPIPE_SZ to be defined.
  81 if ! grep '^const F_GETPIPE_SZ' ${OUT} >/dev/null 2>&1; then
  82   echo "const F_GETPIPE_SZ = 0" >> ${OUT}
  83 fi
  84
  85 # AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
  86 # which leads to a constant overflow when using O_CLOEXEC in some
  87 # go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
  88 # more present in 7.2 (_FCLOEXEC is a 32 bit value).
  89 if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
  90     sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
  91     mv ${OUT}-2 ${OUT}
  92 fi
  93
  94 # These flags can be lost on i386 GNU/Linux when using
  95 # -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
  96 # before we see the definition of F_SETLK64.
  97 for flag in F_GETLK F_SETLK F_SETLKW; do
  98   if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
  99       && grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
 100     echo "const ${flag} = ${flag}64" >> ${OUT}
 101   fi
 102 done
 103
 104 # The Flock_t struct for fcntl.
 105 grep '^type _flock ' gen-sysinfo.go | \
 106     sed -e 's/type _flock/type Flock_t/' \
 107       -e 's/l_type/Type/' \
 108       -e 's/l_whence/Whence/' \
 109       -e 's/l_start/Start/' \
 110       -e 's/l_len/Len/' \
 111       -e 's/l_pid/Pid/' \
 112     >> ${OUT}
 113
 114 # The signal numbers.
 115 grep '^const _SIG[^_]' gen-sysinfo.go | \
 116   grep -v '^const _SIGEV_' | \
 117   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 118 if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
 119   if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
 120     echo "const SIGPOLL = SIGIO" >> ${OUT}
 121   fi
 122 fi
 123 if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
 124   if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
 125     echo "const SIGCLD = SIGCHLD" >> ${OUT}
 126   fi
 127 fi
 128
 129 # The syscall numbers.  We force the names to upper case.
 130 grep '^const _SYS_' gen-sysinfo.go | \
 131   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 132   while read sys; do
 133     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 134     echo "const $sup = _$sys" >> ${OUT}
 135   done
 136
 137 # Special treatment of SYS_IOCTL for GNU/Hurd.
 138 if ! grep '^const SYS_IOCTL' ${OUT} > /dev/null 2>&1; then
 139   echo "const SYS_IOCTL = 0" >> ${OUT}
 140 fi
 141
 142 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 143 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
 144   echo "const SYS_GETDENTS = 0" >> ${OUT}
 145 fi
 146 if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
 147   echo "const SYS_GETDENTS64 = 0" >> ${OUT}
 148 fi
 149
 150 # The syscall package wants the geteuid system call number.  It isn't
 151 # defined on Alpha, which only provides the getresuid system call.
 152 if ! grep '^const SYS_GETEUID ' ${OUT} >/dev/null 2>&1; then
 153   echo "const SYS_GETEUID = 0" >> ${OUT}
 154 fi
 155
 156 # Stat constants.
 157 grep '^const _S_' gen-sysinfo.go | \
 158   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 159
 160 # Mmap constants.
 161 grep '^const _PROT_' gen-sysinfo.go | \
 162   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 163 grep '^const _MAP_' gen-sysinfo.go | \
 164   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 165 grep '^const _MADV_' gen-sysinfo.go | \
 166   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 167 grep '^const _MCL_' gen-sysinfo.go | \
 168   sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 169
 170 # Process status constants.
 171 grep '^const _W' gen-sysinfo.go |
 172   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 173 # WSTOPPED was introduced in glibc 2.3.4.
 174 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 175   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 176     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 177   else
 178     echo 'const WSTOPPED = 2' >> ${OUT}
 179   fi
 180 fi
 181 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 182    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 183   echo 'const WALL = ___WALL' >> ${OUT}
 184 fi
 185 # On GNU/Linux the os package requires WEXITED and WNOWAIT.
 186 if test "${GOOS}" = "linux"; then
 187   if ! grep '^const WEXITED = ' ${OUT} >/dev/null 2>&1; then
 188     echo 'const WEXITED = 4' >> ${OUT}
 189   fi
 190   if ! grep '^const WNOWAIT = ' ${OUT} >/dev/null 2>&1; then
 191     echo 'const WNOWAIT = 0x01000000' >> ${OUT}
 192   fi
 193 fi
 194
 195 # Networking constants.
 196 egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 197   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 198 grep '^const _SOMAXCONN' gen-sysinfo.go |
 199   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 200     >> ${OUT}
 201 grep '^const _SHUT_' gen-sysinfo.go |
 202   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 203
 204 # The net package requires some const definitions.
 205 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
 206   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 207     echo "const $m = 0" >> ${OUT}
 208   fi
 209 done
 210 for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
 211   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 212     echo "const $m = -1" >> ${OUT}
 213   fi
 214 done
 215
 216 # The syscall package requires AF_LOCAL.
 217 if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
 218   if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
 219     echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
 220   fi
 221 fi
 222
 223 # The syscall package requires _AT_FDCWD, but doesn't export it.
 224 if ! grep '^const _AT_FDCWD = ' ${OUT} >/dev/null 2>&1; then
 225   echo "const _AT_FDCWD = -100" >> ${OUT}
 226 fi
 227
 228 # sysconf constants.
 229 grep '^const __SC' gen-sysinfo.go |
 230   sed -e 's/^\(const \)__\(SC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 231
 232 # pathconf constants.
 233 grep '^const __PC' gen-sysinfo.go |
 234   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 235
 236 # The PATH_MAX constant.
 237 if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
 238   echo 'const PathMax = _PATH_MAX' >> ${OUT}
 239 fi
 240
 241 # epoll constants.
 242 grep '^const _EPOLL' gen-sysinfo.go |
 243   grep -v EPOLLET |
 244   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 245 # Make sure EPOLLET is positive.
 246 if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go >/dev/null 2>&1; then
 247   grep '^const _EPOLLET ' gen-sysinfo.go |
 248     sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 249 else
 250   echo "const EPOLLET = 0x80000000" >> ${OUT}
 251 fi
 252 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 253 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 254   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 255 fi
 256 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 257   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 258 fi
 259
 260 # Prctl constants.
 261 grep '^const _PR_' gen-sysinfo.go |
 262   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 263
 264 # Ptrace constants.
 265 grep '^const _PTRACE' gen-sysinfo.go |
 266   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 267 # We need some ptrace options that are not defined in older versions
 268 # of glibc.
 269 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 270   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 271 fi
 272 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 273   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 274 fi
 275 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 276   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 277 fi
 278 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 279   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 280 fi
 281 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 282   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 283 fi
 284 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 285   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 286 fi
 287 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 288   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 289 fi
 290 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 291   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 292 fi
 293 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 294   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 295 fi
 296 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 297   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 298 fi
 299 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 300   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 301 fi
 302 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 303   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 304 fi
 305 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 306   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 307 fi
 308 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 309   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 310 fi
 311 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 312   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 313 fi
 314 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 315   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 316 fi
 317 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 318   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 319 fi
 320
 321 # A helper function that prints a structure from gen-sysinfo.go with the first
 322 # letter of the field names in upper case.  $1 is the name of structure.  If $2
 323 # is not empty, the structure or type is renamed to $2.
 324 upcase_fields () {
 325   name="$1"
 326   def=`grep "^type $name " gen-sysinfo.go`
 327   fields=`echo $def | sed -e 's/^[^{]*{\(.*\)}$/\1/'`
 328   prefix=`echo $def | sed -e 's/{.*//'`
 329   if test "$2" != ""; then
 330     prefix=`echo $prefix | sed -e "s/$1/$2/"`
 331   fi
 332   if test "$fields" != ""; then
 333     nfields=
 334     while test -n "$fields"; do
 335       field=`echo $fields | sed -e 's/^\([^;]*\);.*$/\1/'`
 336       fields=`echo $fields | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 337       # capitalize the next character.
 338       f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 339       r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 340       f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 341       field="$f$r"
 342       nfields="$nfields $field;"
 343     done
 344     echo "${prefix} {$nfields }"
 345   fi
 346 }
 347
 348 # The registers returned by PTRACE_GETREGS.  This is probably
 349 # GNU/Linux specific; it should do no harm if there is no
 350 # _user_regs_struct.
 351 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 352 if test "$regs" = ""; then
 353   # mips*
 354   regs=`grep '^type _pt_regs struct' gen-sysinfo.go || true`
 355 fi
 356 if test "$regs" != ""; then
 357   regs=`echo $regs | sed -e 's/type _pt_regs struct//'`
 358   regs=`echo $regs |
 359     sed -e 's/type __*user_regs_struct struct //' -e 's/[{}]//g'`
 360   regs=`echo $regs | sed -e s'/^ *//'`
 361   nregs=
 362   while test -n "$regs"; do
 363     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 364     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 365     # Capitalize the first character of the field.
 366     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 367     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 368     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 369     field="$f$r"
 370     field=`echo "$field" | sed \
 371       -e 's/__user_psw_struct/PtracePsw/' \
 372       -e 's/__user_fpregs_struct/PtraceFpregs/' \
 373       -e 's/__user_per_struct/PtracePer/'`
 374     nregs="$nregs $field;"
 375   done
 376   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 377 fi
 378
 379 # Some basic types.
 380 echo 'type Size_t _size_t' >> ${OUT}
 381 echo "type Ssize_t _ssize_t" >> ${OUT}
 382 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 383   echo "type Offset_t _off64_t" >> ${OUT}
 384 else
 385   echo "type Offset_t _off_t" >> ${OUT}
 386 fi
 387 echo "type Mode_t _mode_t" >> ${OUT}
 388 echo "type Pid_t _pid_t" >> ${OUT}
 389 echo "type Uid_t _uid_t" >> ${OUT}
 390 echo "type Gid_t _gid_t" >> ${OUT}
 391 echo "type Socklen_t _socklen_t" >> ${OUT}
 392
 393 # The C int type.
 394 sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 395 if test "$sizeof_int" = "4"; then
 396   echo "type _C_int int32" >> ${OUT}
 397   echo "type _C_uint uint32" >> ${OUT}
 398 elif test "$sizeof_int" = "8"; then
 399   echo "type _C_int int64" >> ${OUT}
 400   echo "type _C_uint uint64" >> ${OUT}
 401 else
 402   echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
 403   exit 1
 404 fi
 405
 406 # The C long type, needed because that is the type that ptrace returns.
 407 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 408 if test "$sizeof_long" = "4"; then
 409   echo "type _C_long int32" >> ${OUT}
 410   echo "type _C_ulong uint32" >> ${OUT}
 411 elif test "$sizeof_long" = "8"; then
 412   echo "type _C_long int64" >> ${OUT}
 413   echo "type _C_ulong uint64" >> ${OUT}
 414 else
 415   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 416   exit 1
 417 fi
 418
 419 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 420 # double is commented by -fdump-go-spec.
 421 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 422   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 423 fi
 424 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 425   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 426 fi
 427
 428 # The time_t type.
 429 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 430   echo 'type Time_t _time_t' >> ${OUT}
 431 fi
 432
 433 # The time structures need special handling: we need to name the
 434 # types, so that we can cast integers to the right types when
 435 # assigning to the structures.
 436 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 437 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 438 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 439 echo "type Timeval_sec_t = $timeval_sec" >> ${OUT}
 440 echo "type Timeval_usec_t = $timeval_usec" >> ${OUT}
 441 echo $timeval | \
 442   sed -e 's/type _timeval /type Timeval /' \
 443       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 444       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 445 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 446 if test "$timespec" = ""; then
 447   # IRIX 6.5 has __timespec instead.
 448   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 449 fi
 450 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 451 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 452 echo "type Timespec_sec_t = $timespec_sec" >> ${OUT}
 453 echo "type Timespec_nsec_t = $timespec_nsec" >> ${OUT}
 454 echo $timespec | \
 455   sed -e 's/^type ___timespec /type Timespec /' \
 456       -e 's/^type _timespec /type Timespec /' \
 457       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 458       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 459
 460 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 461 if test "$timestruc" != ""; then
 462   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 463   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 464   echo "type Timestruc_sec_t = $timestruc_sec" >> ${OUT}
 465   echo "type Timestruc_nsec_t = $timestruc_nsec" >> ${OUT}
 466   echo $timestruc | \
 467     sed -e 's/^type _timestruc_t /type Timestruc /' \
 468         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 469         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 470 fi
 471
 472 # The tms struct.
 473 grep '^type _tms ' gen-sysinfo.go | \
 474     sed -e 's/type _tms/type Tms/' \
 475       -e 's/tms_utime/Utime/' \
 476       -e 's/tms_stime/Stime/' \
 477       -e 's/tms_cutime/Cutime/' \
 478       -e 's/tms_cstime/Cstime/' \
 479     >> ${OUT}
 480
 481 # AIX uses st_timespec struct for stat.
 482 grep '^type _st_timespec ' gen-sysinfo.go | \
 483     sed -e 's/type _st_timespec /type StTimespec /' \
 484       -e 's/tv_sec/Sec/' \
 485       -e 's/tv_nsec/Nsec/' >> ${OUT}
 486
 487 # Special treatment of struct stat st_dev for GNU/Hurd
 488 # /usr/include/i386-gnu/bits/stat.h: #define st_dev st_fsid
 489 st_dev='-e s/st_dev/Dev/'
 490 if grep 'define st_dev st_fsid' gen-sysinfo.go > /dev/null 2>&1; then
 491   st_dev='-e s/st_fsid/Dev/'
 492 fi
 493
 494 # The stat type.
 495 # Prefer largefile variant if available.
 496 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 497 if test "$stat" != ""; then
 498   grep '^type _stat64 ' gen-sysinfo.go
 499 else
 500   grep '^type _stat ' gen-sysinfo.go
 501 fi | sed -e 's/type _stat64/type Stat_t/' \
 502          -e 's/type _stat/type Stat_t/' \
 503          ${st_dev} \
 504          -e 's/st_ino/Ino/g' \
 505          -e 's/st_nlink/Nlink/' \
 506          -e 's/st_mode/Mode/' \
 507          -e 's/st_uid/Uid/' \
 508          -e 's/st_gid/Gid/' \
 509          -e 's/st_rdev/Rdev/' \
 510          -e 's/st_size/Size/' \
 511          -e 's/st_blksize/Blksize/' \
 512          -e 's/st_blocks/Blocks/' \
 513          -e 's/st_atim/Atim/' \
 514          -e 's/st_mtim/Mtim/' \
 515          -e 's/st_ctim/Ctim/' \
 516          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 517          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 518          -e 's/\([^a-zA-Z0-9_]\)_st_timespec_t\([^a-zA-Z0-9_]\)/\1StTimespec\2/g' \
 519          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 520          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 521          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 522        >> ${OUT}
 523
 524 # The directory searching types.
 525 # Prefer largefile variant if available.
 526 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 527 if test "$dirent" != ""; then
 528   grep '^type _dirent64 ' gen-sysinfo.go
 529 else
 530   grep '^type _dirent ' gen-sysinfo.go
 531 fi | sed -e 's/type _dirent64/type Dirent/' \
 532          -e 's/type _dirent/type Dirent/' \
 533          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 534          -e 's/d_name/Name/' \
 535          -e 's/]int8/]byte/' \
 536          -e 's/d_ino/Ino/' \
 537          -e 's/d_namlen/Namlen/' \
 538          -e 's/d_off/Off/' \
 539          -e 's/d_reclen/Reclen/' \
 540          -e 's/d_type/Type/' \
 541       >> ${OUT}
 542 echo "type DIR _DIR" >> ${OUT}
 543
 544 # Values for d_type field in dirent.
 545 grep '^const _DT_' gen-sysinfo.go |
 546   sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 547
 548 # The rusage struct.
 549 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 550 if test "$rusage" != ""; then
 551   # Remove anonymous unions from GNU/Linux <bits/resource.h>.
 552   rusage=`echo $rusage | sed -e 's/Godump_[0-9][0-9]* struct {\([^}]*\)};/\1/g'`
 553   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 554   rusage=`echo $rusage | sed -e 's/^ *//'`
 555   nrusage=
 556   while test -n "$rusage"; do
 557     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 558     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 559     # Drop the leading ru_, capitalize the next character.
 560     field=`echo $field | sed -e 's/^ru_//'`
 561     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 562     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 563     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 564     # Fix _timeval _timespec, and _timestruc_t.
 565     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 566     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 567     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 568     field="$f$r"
 569     nrusage="$nrusage $field;"
 570   done
 571   echo "type Rusage struct {$nrusage }" >> ${OUT}
 572 else
 573   echo "type Rusage struct {}" >> ${OUT}
 574 fi
 575
 576 # The RUSAGE constants.
 577 grep '^const _RUSAGE_' gen-sysinfo.go | \
 578   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 579
 580 # The utsname struct.
 581 grep '^type _utsname ' gen-sysinfo.go | \
 582     sed -e 's/_utsname/Utsname/' \
 583       -e 's/sysname/Sysname/' \
 584       -e 's/nodename/Nodename/' \
 585       -e 's/release/Release/' \
 586       -e 's/version/Version/' \
 587       -e 's/machine/Machine/' \
 588       -e 's/domainname/Domainname/' \
 589     >> ${OUT}
 590
 591 # The iovec struct.
 592 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 593 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 594 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 595 echo $iovec | \
 596     sed -e 's/_iovec/Iovec/' \
 597       -e 's/iov_base/Base/' \
 598       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 599     >> ${OUT}
 600
 601 # The msghdr struct.
 602 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 603 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 604 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 605 echo $msghdr | \
 606     sed -e 's/_msghdr/Msghdr/' \
 607       -e 's/msg_name/Name/' \
 608       -e 's/msg_namelen/Namelen/' \
 609       -e 's/msg_iov/Iov/' \
 610       -e 's/msg_iovlen/Iovlen/' \
 611       -e 's/_iovec/Iovec/' \
 612       -e 's/msg_control/Control/' \
 613       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 614       -e 's/msg_flags/Flags/' \
 615     >> ${OUT}
 616
 617 # The MSG_ flags for Msghdr.
 618 grep '^const _MSG_' gen-sysinfo.go | \
 619   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 620
 621 # The cmsghdr struct.
 622 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 623 if test -n "$cmsghdr"; then
 624   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 625   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 626   echo "$cmsghdr" | \
 627       sed -e 's/_cmsghdr/Cmsghdr/' \
 628         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 629         -e 's/cmsg_level/Level/' \
 630         -e 's/cmsg_type/Type/' \
 631         -e 's/\[\]/[0]/' \
 632       >> ${OUT}
 633 fi
 634
 635 # The SCM_ flags for Cmsghdr.
 636 grep '^const _SCM_' gen-sysinfo.go | \
 637   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 638
 639 # The ucred struct.
 640 upcase_fields "_ucred" "Ucred" >> ${OUT} || true
 641
 642 # The ip_mreq struct.
 643 grep '^type _ip_mreq ' gen-sysinfo.go | \
 644     sed -e 's/_ip_mreq/IPMreq/' \
 645       -e 's/imr_multiaddr/Multiaddr/' \
 646       -e 's/imr_interface/Interface/' \
 647       -e 's/_in_addr/[4]byte/g' \
 648     >> ${OUT}
 649
 650 # We need IPMreq to compile the net package.
 651 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 652   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 653 fi
 654
 655 # The ipv6_mreq struct.
 656 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 657     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 658       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 659       -e 's/ipv6mr_interface/Interface/' \
 660       -e 's/_in6_addr/[16]byte/' \
 661     >> ${OUT}
 662
 663 # We need IPv6Mreq to compile the net package.
 664 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 665   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 666 fi
 667
 668 # The ip_mreqn struct.
 669 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 670     sed -e 's/_ip_mreqn/IPMreqn/' \
 671       -e 's/imr_multiaddr/Multiaddr/' \
 672       -e 's/imr_address/Address/' \
 673       -e 's/imr_ifindex/Ifindex/' \
 674       -e 's/_in_addr/[4]byte/g' \
 675     >> ${OUT}
 676
 677 # We need IPMreq to compile the net package.
 678 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 679   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 680 fi
 681
 682 # The icmp6_filter struct.
 683 grep '^type _icmp6_filter ' gen-sysinfo.go | \
 684     sed -e 's/_icmp6_filter/ICMPv6Filter/' \
 685       -e 's/data/Data/' \
 686       -e 's/filt/Filt/' \
 687     >> ${OUT}
 688
 689 # We need ICMPv6Filter to compile the syscall package.
 690 if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
 691   echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
 692 fi
 693
 694 # The ip6_mtuinfo struct.
 695 grep '^type _ip6_mtuinfo ' gen-sysinfo.go | \
 696     sed -e 's/_ip6_mtuinfo/IPv6MTUInfo/' \
 697       -e 's/ip6m_addr/Addr/' \
 698       -e 's/_sockaddr_in6/RawSockaddrInet6/' \
 699       -e 's/ip6m_mtu/Mtu/' \
 700     >> ${OUT}
 701
 702 # We need IPv6MTUInfo to compile the syscall package.
 703 if ! grep 'type IPv6MTUInfo ' ${OUT} >/dev/null 2>&1; then
 704   echo 'type IPv6MTUInfo struct { Addr RawSockaddrInet6; Mtu uint32; }' >> ${OUT}
 705 fi
 706 if ! grep 'const _sizeof_ip6_mtuinfo = ' ${OUT} >/dev/null 2>&1; then
 707   echo 'const SizeofIPv6MTUInfo = 32' >> ${OUT}
 708 fi
 709
 710 # Try to guess the type to use for fd_set.
 711 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 712 fds_bits_type="_C_long"
 713 if test "$fd_set" != ""; then
 714     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 715 fi
 716 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 717
 718 # The addrinfo struct.
 719 grep '^type _addrinfo ' gen-sysinfo.go | \
 720     sed -e 's/_addrinfo/Addrinfo/g' \
 721       -e 's/ ai_/ Ai_/g' \
 722     >> ${OUT}
 723
 724 # The addrinfo and nameinfo flags and errors.
 725 grep '^const _AI_' gen-sysinfo.go | \
 726   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 727 grep '^const _EAI_' gen-sysinfo.go | \
 728   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 729 grep '^const _NI_' gen-sysinfo.go | \
 730   sed -e 's/^\(const \)_\(NI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 731
 732 # If nothing else defined EAI_OVERFLOW, make sure it has a value.
 733 if ! grep "const EAI_OVERFLOW " ${OUT} >/dev/null 2>&1; then
 734   echo "const EAI_OVERFLOW = 0" >> ${OUT}
 735 fi
 736
 737 # The passwd struct.
 738 grep '^type _passwd ' gen-sysinfo.go | \
 739     sed -e 's/_passwd/Passwd/' \
 740       -e 's/ pw_/ Pw_/g' \
 741     >> ${OUT}
 742
 743 # The group struct.
 744 grep '^type _group ' gen-sysinfo.go | \
 745     sed -e 's/_group/Group/' \
 746       -e 's/ gr_/ Gr_/g' \
 747     >> ${OUT}
 748
 749 # The ioctl flags for the controlling TTY.
 750 grep '^const _TIOC' gen-sysinfo.go | \
 751     grep -v '_val =' | \
 752     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 753 grep '^const _TUNSET' gen-sysinfo.go | \
 754     grep -v '_val =' | \
 755     sed -e 's/^\(const \)_\(TUNSET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 756 # We need TIOCGWINSZ.
 757 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 758   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 759     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 760   fi
 761 fi
 762 if ! grep '^const TIOCSWINSZ' ${OUT} >/dev/null 2>&1; then
 763   if grep '^const _TIOCSWINSZ_val' ${OUT} >/dev/null 2>&1; then
 764     echo 'const TIOCSWINSZ = _TIOCSWINSZ_val' >> ${OUT}
 765   fi
 766 fi
 767 if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
 768   if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
 769     echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
 770   fi
 771 fi
 772 if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
 773   if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
 774     echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
 775   fi
 776 fi
 777 if ! grep '^const TIOCGPGRP' ${OUT} >/dev/null 2>&1; then
 778   if grep '^const _TIOCGPGRP_val' ${OUT} >/dev/null 2>&1; then
 779     echo 'const TIOCGPGRP = _TIOCGPGRP_val' >> ${OUT}
 780   fi
 781 fi
 782 if ! grep '^const TIOCSPGRP' ${OUT} >/dev/null 2>&1; then
 783   if grep '^const _TIOCSPGRP_val' ${OUT} >/dev/null 2>&1; then
 784     echo 'const TIOCSPGRP = _TIOCSPGRP_val' >> ${OUT}
 785   fi
 786 fi
 787 if ! grep '^const TIOCGPTN' ${OUT} >/dev/null 2>&1; then
 788   if grep '^const _TIOCGPTN_val' ${OUT} >/dev/null 2>&1; then
 789     echo 'const TIOCGPTN = _TIOCGPTN_val' >> ${OUT}
 790   fi
 791 fi
 792 if ! grep '^const TIOCSPTLCK' ${OUT} >/dev/null 2>&1; then
 793   if grep '^const _TIOCSPTLCK_val' ${OUT} >/dev/null 2>&1; then
 794     echo 'const TIOCSPTLCK = _TIOCSPTLCK_val' >> ${OUT}
 795   fi
 796 fi
 797 if ! grep '^const TIOCGDEV' ${OUT} >/dev/null 2>&1; then
 798   if grep '^const _TIOCGDEV_val' ${OUT} >/dev/null 2>&1; then
 799     echo 'const TIOCGDEV = _TIOCGDEV_val' >> ${OUT}
 800   fi
 801 fi
 802 if ! grep '^const TIOCSIG' ${OUT} >/dev/null 2>&1; then
 803   if grep '^const _TIOCSIG_val' ${OUT} >/dev/null 2>&1; then
 804     echo 'const TIOCSIG = _TIOCSIG_val' >> ${OUT}
 805   fi
 806 fi
 807
 808 if ! grep '^const TUNSETNOCSUM' ${OUT} >/dev/null 2>&1; then
 809   if grep '^const _TUNSETNOCSUM_val' ${OUT} >/dev/null 2>&1; then
 810     echo 'const TUNSETNOCSUM = _TUNSETNOCSUM_val' >> ${OUT}
 811   fi
 812 fi
 813
 814 if ! grep '^const TUNSETDEBUG' ${OUT} >/dev/null 2>&1; then
 815   if grep '^const _TUNSETDEBUG_val' ${OUT} >/dev/null 2>&1; then
 816     echo 'const TUNSETDEBUG = _TUNSETDEBUG_val' >> ${OUT}
 817   fi
 818 fi
 819
 820 if ! grep '^const TUNSETIFF' ${OUT} >/dev/null 2>&1; then
 821   if grep '^const _TUNSETIFF_val' ${OUT} >/dev/null 2>&1; then
 822     echo 'const TUNSETIFF = _TUNSETIFF_val' >> ${OUT}
 823   fi
 824 fi
 825
 826 if ! grep '^const TUNSETPERSIST' ${OUT} >/dev/null 2>&1; then
 827   if grep '^const _TUNSETPERSIST_val' ${OUT} >/dev/null 2>&1; then
 828     echo 'const TUNSETPERSIST = _TUNSETPERSIST_val' >> ${OUT}
 829   fi
 830 fi
 831
 832 if ! grep '^const TUNSETOWNER' ${OUT} >/dev/null 2>&1; then
 833   if grep '^const _TUNSETOWNER_val' ${OUT} >/dev/null 2>&1; then
 834     echo 'const TUNSETOWNER = _TUNSETOWNER_val' >> ${OUT}
 835   fi
 836 fi
 837
 838 if ! grep '^const TUNSETLINK' ${OUT} >/dev/null 2>&1; then
 839   if grep '^const _TUNSETLINK_val' ${OUT} >/dev/null 2>&1; then
 840     echo 'const TUNSETLINK = _TUNSETLINK_val' >> ${OUT}
 841   fi
 842 fi
 843
 844 if ! grep '^const TUNSETGROUP' ${OUT} >/dev/null 2>&1; then
 845   if grep '^const _TUNSETGROUP_val' ${OUT} >/dev/null 2>&1; then
 846     echo 'const TUNSETGROUP = _TUNSETGROUP_val' >> ${OUT}
 847   fi
 848 fi
 849
 850 if ! grep '^const TUNGETFEATURES' ${OUT} >/dev/null 2>&1; then
 851   if grep '^const _TUNGETFEATURES_val' ${OUT} >/dev/null 2>&1; then
 852     echo 'const TUNGETFEATURES = _TUNGETFEATURES_val' >> ${OUT}
 853   fi
 854 fi
 855
 856 if ! grep '^const TUNSETOFFLOAD' ${OUT} >/dev/null 2>&1; then
 857   if grep '^const _TUNSETOFFLOAD_val' ${OUT} >/dev/null 2>&1; then
 858     echo 'const TUNSETOFFLOAD = _TUNSETOFFLOAD_val' >> ${OUT}
 859   fi
 860 fi
 861
 862 if ! grep '^const TUNSETTXFILTER' ${OUT} >/dev/null 2>&1; then
 863   if grep '^const _TUNSETTXFILTER_val' ${OUT} >/dev/null 2>&1; then
 864     echo 'const TUNSETTXFILTER = _TUNSETTXFILTER_val' >> ${OUT}
 865   fi
 866 fi
 867
 868 if ! grep '^const TUNGETIFF' ${OUT} >/dev/null 2>&1; then
 869   if grep '^const _TUNGETIFF_val' ${OUT} >/dev/null 2>&1; then
 870     echo 'const TUNGETIFF = _TUNGETIFF_val' >> ${OUT}
 871   fi
 872 fi
 873
 874 if ! grep '^const TUNGETSNDBUF' ${OUT} >/dev/null 2>&1; then
 875   if grep '^const _TUNGETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 876     echo 'const TUNGETSNDBUF = _TUNGETSNDBUF_val' >> ${OUT}
 877   fi
 878 fi
 879
 880 if ! grep '^const TUNSETSNDBUF' ${OUT} >/dev/null 2>&1; then
 881   if grep '^const _TUNSETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 882     echo 'const TUNSETSNDBUF = _TUNSETSNDBUF_val' >> ${OUT}
 883   fi
 884 fi
 885
 886 if ! grep '^const TUNATTACHFILTER' ${OUT} >/dev/null 2>&1; then
 887   if grep '^const _TUNATTACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 888     echo 'const TUNATTACHFILTER = _TUNATTACHFILTER_val' >> ${OUT}
 889   fi
 890 fi
 891
 892 if ! grep '^const TUNDETACHFILTER' ${OUT} >/dev/null 2>&1; then
 893   if grep '^const _TUNDETACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 894     echo 'const TUNDETACHFILTER = _TUNDETACHFILTER_val' >> ${OUT}
 895   fi
 896 fi
 897
 898 if ! grep '^const TUNGETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 899   if grep '^const _TUNGETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 900     echo 'const TUNGETVNETHDRSZ = _TUNGETVNETHDRSZ_val' >> ${OUT}
 901   fi
 902 fi
 903
 904 if ! grep '^const TUNSETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 905   if grep '^const _TUNSETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 906     echo 'const TUNSETVNETHDRSZ = _TUNSETVNETHDRSZ_val' >> ${OUT}
 907   fi
 908 fi
 909
 910 if ! grep '^const TUNSETQUEUE' ${OUT} >/dev/null 2>&1; then
 911   if grep '^const _TUNSETQUEUE_val' ${OUT} >/dev/null 2>&1; then
 912     echo 'const TUNSETQUEUE = _TUNSETQUEUE_val' >> ${OUT}
 913   fi
 914 fi
 915
 916
 917 if ! grep '^const TUNSETIFINDEX' ${OUT} >/dev/null 2>&1; then
 918   if grep '^const _TUNSETIFINDEX_val' ${OUT} >/dev/null 2>&1; then
 919     echo 'const TUNSETIFINDEX = _TUNSETIFINDEX_val' >> ${OUT}
 920   fi
 921 fi
 922
 923 if ! grep '^const TUNGETFILTER' ${OUT} >/dev/null 2>&1; then
 924   if grep '^const _TUNGETFILTER_val' ${OUT} >/dev/null 2>&1; then
 925     echo 'const TUNGETFILTER = _TUNGETFILTER_val' >> ${OUT}
 926   fi
 927 fi
 928
 929 # The ioctl flags for terminal control
 930 grep '^const _TC[GS]ET' gen-sysinfo.go | grep -v _val | \
 931     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 932 if ! grep '^const TCGETS' ${OUT} >/dev/null 2>&1; then
 933   if grep '^const _TCGETS_val' ${OUT} >/dev/null 2>&1; then
 934     echo 'const TCGETS = _TCGETS_val' >> ${OUT}
 935   fi
 936 fi
 937 if ! grep '^const TCSETS' ${OUT} >/dev/null 2>&1; then
 938   if grep '^const _TCSETS_val' ${OUT} >/dev/null 2>&1; then
 939     echo 'const TCSETS = _TCSETS_val' >> ${OUT}
 940   fi
 941 fi
 942
 943 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 944 # needs handling in syscalls.exec.go.
 945 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 946   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 947     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 948   fi
 949 fi
 950
 951 # If nothing else defined TIOCSCTTY, make sure it has a value.
 952 if ! grep "const TIOCSCTTY " ${OUT} >/dev/null 2>&1; then
 953   echo "const TIOCSCTTY = 0" >> ${OUT}
 954 fi
 955
 956 # The nlmsghdr struct.
 957 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 958     sed -e 's/_nlmsghdr/NlMsghdr/' \
 959       -e 's/nlmsg_len/Len/' \
 960       -e 's/nlmsg_type/Type/' \
 961       -e 's/nlmsg_flags/Flags/' \
 962       -e 's/nlmsg_seq/Seq/' \
 963       -e 's/nlmsg_pid/Pid/' \
 964     >> ${OUT}
 965
 966 # The nlmsg flags and operators.
 967 grep '^const _NLM' gen-sysinfo.go | \
 968     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 969
 970 # NLMSG_HDRLEN is defined as an expression using sizeof.
 971 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 972   if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
 973     echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
 974   fi
 975 fi
 976
 977 # The rtmsg struct.
 978 grep '^type _rtmsg ' gen-sysinfo.go | \
 979     sed -e 's/_rtmsg/RtMsg/' \
 980       -e 's/rtm_family/Family/' \
 981       -e 's/rtm_dst_len/Dst_len/' \
 982       -e 's/rtm_src_len/Src_len/' \
 983       -e 's/rtm_tos/Tos/' \
 984       -e 's/rtm_table/Table/' \
 985       -e 's/rtm_protocol/Protocol/' \
 986       -e 's/rtm_scope/Scope/' \
 987       -e 's/rtm_type/Type/' \
 988       -e 's/rtm_flags/Flags/' \
 989     >> ${OUT}
 990
 991 # The rtgenmsg struct.
 992 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 993     sed -e 's/_rtgenmsg/RtGenmsg/' \
 994       -e 's/rtgen_family/Family/' \
 995     >> ${OUT}
 996
 997 # The routing message flags.
 998 grep '^const _RT_' gen-sysinfo.go | \
 999     sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1000 grep '^const _RTA' gen-sysinfo.go | \
1001     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1002 grep '^const _RTF' gen-sysinfo.go | \
1003     sed -e 's/^\(const \)_\(RTF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1004 grep '^const _RTCF' gen-sysinfo.go | \
1005     sed -e 's/^\(const \)_\(RTCF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1006 grep '^const _RTM' gen-sysinfo.go | \
1007     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1008 grep '^const _RTN' gen-sysinfo.go | \
1009     sed -e 's/^\(const \)_\(RTN[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1010 grep '^const _RTPROT' gen-sysinfo.go | \
1011     sed -e 's/^\(const \)_\(RTPROT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1012
1013 # The ifinfomsg struct.
1014 grep '^type _ifinfomsg ' gen-sysinfo.go | \
1015     sed -e 's/_ifinfomsg/IfInfomsg/' \
1016       -e 's/ifi_family/Family/' \
1017       -e 's/ifi_type/Type/' \
1018       -e 's/ifi_index/Index/' \
1019       -e 's/ifi_flags/Flags/' \
1020       -e 's/ifi_change/Change/' \
1021     >> ${OUT}
1022
1023 # The if_msghdr struct.
1024 grep '^type _if_msghdr ' gen-sysinfo.go | \
1025     sed -e 's/_if_msghdr/IfMsgHdr/' \
1026                 -e 's/ifm_msglen/Msglen/' \
1027                 -e 's/ifm_version/Version/' \
1028                 -e 's/ifm_type/Type/' \
1029                 -e 's/ifm_addrs/Addrs/' \
1030                 -e 's/ifm_flags/Flags/' \
1031                 -e 's/ifm_index/Index/' \
1032                 -e 's/ifm_addrlen/Addrlen/' \
1033                 >> ${OUT}
1034
1035 # The interface information types and flags.
1036 grep '^const _IFA' gen-sysinfo.go | \
1037     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1038 grep '^const _IFLA' gen-sysinfo.go | \
1039     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1040 grep '^const _IFF' gen-sysinfo.go | \
1041     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1042 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
1043     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1044 grep '^const _SIOC' gen-sysinfo.go | \
1045     grep -v '_val =' | \
1046     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1047
1048 if ! grep '^const SIOCGIFMTU' ${OUT} >/dev/null 2>&1; then
1049         if grep '^const _SIOCGIFMTU_val' ${OUT} >/dev/null 2>&1; then
1050                 echo 'const SIOCGIFMTU = _SIOCGIFMTU_val' >> ${OUT}
1051         fi
1052 fi
1053
1054 # The ifaddrmsg struct.
1055 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
1056     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
1057       -e 's/ifa_family/Family/' \
1058       -e 's/ifa_prefixlen/Prefixlen/' \
1059       -e 's/ifa_flags/Flags/' \
1060       -e 's/ifa_scope/Scope/' \
1061       -e 's/ifa_index/Index/' \
1062     >> ${OUT}
1063
1064 # The rtattr struct.
1065 grep '^type _rtattr ' gen-sysinfo.go | \
1066     sed -e 's/_rtattr/RtAttr/' \
1067       -e 's/rta_len/Len/' \
1068       -e 's/rta_type/Type/' \
1069     >> ${OUT}
1070
1071 # The in_pktinfo struct.
1072 grep '^type _in_pktinfo ' gen-sysinfo.go | \
1073     sed -e 's/_in_pktinfo/Inet4Pktinfo/' \
1074       -e 's/ipi_ifindex/Ifindex/' \
1075       -e 's/ipi_spec_dst/Spec_dst/' \
1076       -e 's/ipi_addr/Addr/' \
1077       -e 's/_in_addr/[4]byte/g' \
1078     >> ${OUT}
1079
1080 # The in6_pktinfo struct.
1081 grep '^type _in6_pktinfo ' gen-sysinfo.go | \
1082     sed -e 's/_in6_pktinfo/Inet6Pktinfo/' \
1083       -e 's/ipi6_addr/Addr/' \
1084       -e 's/ipi6_ifindex/Ifindex/' \
1085       -e 's/_in6_addr/[16]byte/' \
1086     >> ${OUT}
1087
1088 # The termios struct.
1089 grep '^type _termios ' gen-sysinfo.go | \
1090     sed -e 's/_termios/Termios/' \
1091       -e 's/c_iflag/Iflag/' \
1092       -e 's/c_oflag/Oflag/' \
1093       -e 's/c_cflag/Cflag/' \
1094       -e 's/c_lflag/Lflag/' \
1095       -e 's/c_line/Line/' \
1096       -e 's/c_cc/Cc/' \
1097       -e 's/c_ispeed/Ispeed/' \
1098       -e 's/c_ospeed/Ospeed/' \
1099     >> ${OUT}
1100
1101 # The termios constants.
1102 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
1103     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
1104     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 CS5 CS6 CS7 CS8 TABDLY \
1105     BSDLY VTDLY FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL \
1106     CLOCAL LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK \
1107     ECHONL ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN \
1108     VINTR VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP \
1109     VSUSP VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
1110     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
1111     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
1112     B38400 B57600 B115200 B230400 B460800 B500000 B576000 B921600 B1000000 \
1113     B1152000 B1500000 B2000000 B2500000 B3000000 B3500000 B4000000; do
1114
1115     grep "^const _$n " gen-sysinfo.go | \
1116         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1117 done
1118
1119 # The mount flags
1120 grep '^const _MNT_' gen-sysinfo.go |
1121     sed -e 's/^\(const \)_\(MNT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1122 grep '^const _MS_' gen-sysinfo.go |
1123     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1124
1125 # The fallocate flags.
1126 grep '^const _FALLOC_' gen-sysinfo.go |
1127     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1128
1129 # The statfs struct.
1130 # Prefer largefile variant if available.
1131 # CentOS 5 does not have f_flags, so pull from f_spare.
1132 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
1133 if test "$statfs" = ""; then
1134   statfs=`grep '^type _statfs ' gen-sysinfo.go || true`
1135 fi
1136 if ! echo "$statfs" | grep f_flags >/dev/null 2>&1; then
1137   statfs=`echo "$statfs" | sed -e 's/f_spare \[4+1\]\([^ ;]*\)/f_flags \1; f_spare [3+1]\1/'`
1138 fi
1139 echo "$statfs" | sed -e 's/type _statfs64/type Statfs_t/' \
1140          -e 's/type _statfs/type Statfs_t/' \
1141          -e 's/f_type/Type/' \
1142          -e 's/f_bsize/Bsize/' \
1143          -e 's/f_blocks/Blocks/' \
1144          -e 's/f_bfree/Bfree/' \
1145          -e 's/f_bavail/Bavail/' \
1146          -e 's/f_files/Files/' \
1147          -e 's/f_ffree/Ffree/' \
1148          -e 's/f_fsid/Fsid/' \
1149          -e 's/f_namelen/Namelen/' \
1150          -e 's/f_frsize/Frsize/' \
1151          -e 's/f_flags/Flags/' \
1152          -e 's/f_spare/Spare/' \
1153     >> ${OUT}
1154
1155 # The timex struct.
1156 timex=`grep '^type _timex ' gen-sysinfo.go || true`
1157 if test "$timex" = ""; then
1158   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
1159   if test "$timex" != ""; then
1160     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
1161   fi
1162 fi
1163 if test "$timex" != ""; then
1164   echo "$timex" | \
1165     sed -e 's/_timex/Timex/' \
1166       -e 's/modes/Modes/' \
1167       -e 's/offset/Offset/' \
1168       -e 's/freq/Freq/' \
1169       -e 's/maxerror/Maxerror/' \
1170       -e 's/esterror/Esterror/' \
1171       -e 's/status/Status/' \
1172       -e 's/constant/Constant/' \
1173       -e 's/precision/Precision/' \
1174       -e 's/tolerance/Tolerance/' \
1175       -e 's/ time / Time /' \
1176       -e 's/tick/Tick/' \
1177       -e 's/ppsfreq/Ppsfreq/' \
1178       -e 's/jitter/Jitter/' \
1179       -e 's/shift/Shift/' \
1180       -e 's/stabil/Stabil/' \
1181       -e 's/jitcnt/Jitcnt/' \
1182       -e 's/calcnt/Calcnt/' \
1183       -e 's/errcnt/Errcnt/' \
1184       -e 's/stbcnt/Stbcnt/' \
1185       -e 's/tai/Tai/' \
1186       -e 's/_timeval/Timeval/' \
1187     >> ${OUT}
1188 fi
1189
1190 # The rlimit struct.
1191 # On systems that use syscall/libcall_posix_largefile.go, use rlimit64
1192 # if it exists.
1193 rlimit="_rlimit"
1194 if test "${GOOS}" = "aix" || test "${GOOS}" = "linux" || (test "${GOOS}" = "solaris" && (test "${GOARCH}" = "386" || test "${GOARCH}" = "sparc")); then
1195   if grep '^type _rlimit64 ' gen-sysinfo.go > /dev/null 2>&1; then
1196     rlimit="_rlimit64"
1197   fi
1198 fi
1199 grep "^type ${rlimit} " gen-sysinfo.go | \
1200     sed -e "s/${rlimit}/Rlimit/" \
1201       -e 's/rlim_cur/Cur/' \
1202       -e 's/rlim_max/Max/' \
1203     >> ${OUT}
1204
1205 # The RLIMIT constants.
1206 grep '^const _RLIMIT_' gen-sysinfo.go |
1207     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1208 grep '^const _RLIM_' gen-sysinfo.go |
1209     grep -v '^const _RLIM_INFINITY ' |
1210     sed -e 's/^\(const \)_\(RLIM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1211 rliminf=""
1212 if test "${rlimit}" = "_rlimit64" && grep '^const _RLIM64_INFINITY ' gen-sysinfo.go > /dev/null 2>&1; then
1213   rliminf=`grep '^const _RLIM64_INFINITY ' gen-sysinfo.go | sed -e 's/.* //'`
1214 else
1215   rliminf=`grep '^const _RLIM_INFINITY ' gen-sysinfo.go | sed -e 's/.* //'`
1216 fi
1217 # For compatibility with the gc syscall package, treat 0xffffffffffffffff as -1.
1218 if test "$rliminf" = "0xffffffffffffffff"; then
1219   echo "const RLIM_INFINITY = -1" >> ${OUT}
1220 elif test -n "$rliminf"; then
1221   echo "const RLIM_INFINITY = $rliminf" >> ${OUT}
1222 fi
1223
1224 # The sysinfo struct.
1225 grep '^type _sysinfo ' gen-sysinfo.go | \
1226     sed -e 's/_sysinfo/Sysinfo_t/' \
1227       -e 's/uptime/Uptime/' \
1228       -e 's/loads/Loads/' \
1229       -e 's/totalram/Totalram/' \
1230       -e 's/freeram/Freeram/' \
1231       -e 's/sharedram/Sharedram/' \
1232       -e 's/bufferram/Bufferram/' \
1233       -e 's/totalswap/Totalswap/' \
1234       -e 's/freeswap/Freeswap/' \
1235       -e 's/procs/Procs/' \
1236       -e 's/totalhigh/Totalhigh/' \
1237       -e 's/freehigh/Freehigh/' \
1238       -e 's/mem_unit/Unit/' \
1239     >> ${OUT}
1240
1241 # The utimbuf struct.
1242 grep '^type _utimbuf ' gen-sysinfo.go | \
1243     sed -e 's/_utimbuf/Utimbuf/' \
1244       -e 's/actime/Actime/' \
1245       -e 's/modtime/Modtime/' \
1246     >> ${OUT}
1247
1248 # The LOCK flags for flock.
1249 grep '^const _LOCK_' gen-sysinfo.go |
1250     sed -e 's/^\(const \)_\(LOCK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1251
1252 # The PRIO constants.
1253 grep '^const _PRIO_' gen-sysinfo.go | \
1254   sed -e 's/^\(const \)_\(PRIO_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1255
1256 # The GNU/Linux LINUX_REBOOT flags.
1257 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
1258     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1259
1260 # The GNU/Linux sock_filter struct.
1261 grep '^type _sock_filter ' gen-sysinfo.go | \
1262     sed -e 's/_sock_filter/SockFilter/' \
1263       -e 's/code/Code/' \
1264       -e 's/jt/Jt/' \
1265       -e 's/jf/Jf/' \
1266       -e 's/k /K /' \
1267     >> ${OUT}
1268
1269 # The GNU/Linux sock_fprog struct.
1270 grep '^type _sock_fprog ' gen-sysinfo.go | \
1271     sed -e 's/_sock_fprog/SockFprog/' \
1272       -e 's/len/Len/' \
1273       -e 's/filter/Filter/' \
1274       -e 's/_sock_filter/SockFilter/' \
1275     >> ${OUT}
1276
1277 # The GNU/Linux filter flags.
1278 grep '^const _BPF_' gen-sysinfo.go | \
1279   sed -e 's/^\(const \)_\(BPF_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1280
1281 # The GNU/Linux nlattr struct.
1282 grep '^type _nlattr ' gen-sysinfo.go | \
1283     sed -e 's/_nlattr/NlAttr/' \
1284       -e 's/nla_len/Len/' \
1285       -e 's/nla_type/Type/' \
1286     >> ${OUT}
1287
1288 # The GNU/Linux nlmsgerr struct.
1289 grep '^type _nlmsgerr ' gen-sysinfo.go | \
1290     sed -e 's/_nlmsgerr/NlMsgerr/' \
1291       -e 's/error/Error/' \
1292       -e 's/msg/Msg/' \
1293       -e 's/_nlmsghdr/NlMsghdr/' \
1294     >> ${OUT}
1295
1296 # The GNU/Linux rtnexthop struct.
1297 grep '^type _rtnexthop ' gen-sysinfo.go | \
1298     sed -e 's/_rtnexthop/RtNexthop/' \
1299       -e 's/rtnh_len/Len/' \
1300       -e 's/rtnh_flags/Flags/' \
1301       -e 's/rtnh_hops/Hops/' \
1302       -e 's/rtnh_ifindex/Ifindex/' \
1303     >> ${OUT}
1304
1305 # The GNU/Linux netlink flags.
1306 grep '^const _NETLINK_' gen-sysinfo.go | \
1307   sed -e 's/^\(const \)_\(NETLINK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1308 grep '^const _NLA_' gen-sysinfo.go | grep -v '_val =' | \
1309   sed -e 's/^\(const \)_\(NLA_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1310
1311 if ! grep '^const NLA_HDRLEN' ${OUT} >/dev/null 2>&1; then
1312   if grep '^const _NLA_HDRLEN_val' ${OUT} >/dev/null 2>&1; then
1313     echo 'const NLA_HDRLEN = _NLA_HDRLEN_val' >> ${OUT}
1314   fi
1315 fi
1316
1317 # The GNU/Linux packet socket flags.
1318 grep '^const _PACKET_' gen-sysinfo.go | \
1319   sed -e 's/^\(const \)_\(PACKET_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1320
1321 # The GNU/Linux inotify_event struct.
1322 grep '^type _inotify_event ' gen-sysinfo.go | \
1323     sed -e 's/_inotify_event/InotifyEvent/' \
1324       -e 's/wd/Wd/' \
1325       -e 's/mask/Mask/' \
1326       -e 's/cookie/Cookie/' \
1327       -e 's/len/Len/' \
1328       -e 's/name/Name/' \
1329       -e 's/\[\]/[0]/' \
1330       -e 's/\[0\]byte/[0]int8/' \
1331     >> ${OUT}
1332
1333 # The GNU/Linux CLONE flags.
1334 grep '^const _CLONE_' gen-sysinfo.go | \
1335   sed -e 's/^\(const \)_\(CLONE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1336 # We need some CLONE constants that are not defined in older versions
1337 # of glibc.
1338 if ! grep '^const CLONE_NEWUSER ' ${OUT} > /dev/null 2>&1; then
1339   echo "const CLONE_NEWUSER = 0x10000000" >> ${OUT}
1340 fi
1341 if ! grep '^const CLONE_NEWNET ' ${OUT} > /dev/null 2>&1; then
1342   echo "const CLONE_NEWNET = 0x40000000" >> ${OUT}
1343 fi
1344
1345 # Struct sizes.
1346 set cmsghdr Cmsghdr ip_mreq IPMreq ip_mreqn IPMreqn ipv6_mreq IPv6Mreq \
1347     ifaddrmsg IfAddrmsg ifinfomsg IfInfomsg in_pktinfo Inet4Pktinfo \
1348     in6_pktinfo Inet6Pktinfo inotify_event InotifyEvent linger Linger \
1349     msghdr Msghdr nlattr NlAttr nlmsgerr NlMsgerr nlmsghdr NlMsghdr \
1350     rtattr RtAttr rtgenmsg RtGenmsg rtmsg RtMsg rtnexthop RtNexthop \
1351     sock_filter SockFilter sock_fprog SockFprog ucred Ucred \
1352     icmp6_filter ICMPv6Filter ip6_mtuinfo IPv6MTUInfo
1353 while test $# != 0; do
1354     nc=$1
1355     ngo=$2
1356     shift
1357     shift
1358     if grep "^const _sizeof_$nc =" gen-sysinfo.go >/dev/null 2>&1; then
1359         echo "const Sizeof$ngo = _sizeof_$nc" >> ${OUT}
1360     fi
1361 done
1362
1363 # In order to compile the net package, we need some sizes to exist
1364 # even if the types do not.
1365 if ! grep 'const SizeofIPMreq ' ${OUT} >/dev/null 2>&1; then
1366     echo 'const SizeofIPMreq = 8' >> ${OUT}
1367 fi
1368 if ! grep 'const SizeofIPv6Mreq ' ${OUT} >/dev/null 2>&1; then
1369     echo 'const SizeofIPv6Mreq = 20' >> ${OUT}
1370 fi
1371 if ! grep 'const SizeofIPMreqn ' ${OUT} >/dev/null 2>&1; then
1372     echo 'const SizeofIPMreqn = 12' >> ${OUT}
1373 fi
1374 if ! grep 'const SizeofICMPv6Filter ' ${OUT} >/dev/null 2>&1; then
1375     echo 'const SizeofICMPv6Filter = 32' >> ${OUT}
1376 fi
1377
1378 # The Solaris 11 Update 1 _zone_net_addr_t struct.
1379 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
1380     sed -e 's/_in6_addr/[16]byte/' \
1381     >> ${OUT}
1382
1383 # The Solaris 11.4 _flow_arp_desc_t struct.
1384 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
1385     sed -e 's/_in6_addr_t/[16]byte/g' \
1386     >> ${OUT}
1387
1388 # The Solaris 11.4 _flow_l3_desc_t struct.
1389 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
1390     sed -e 's/_in6_addr_t/[16]byte/g' \
1391     >> ${OUT}
1392
1393 # The Solaris 11.3 _mac_ipaddr_t struct.
1394 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
1395     sed -e 's/_in6_addr_t/[16]byte/g' \
1396     >> ${OUT}
1397
1398 # The Solaris 11.3 _mactun_info_t struct.
1399 grep '^type _mactun_info_t ' gen-sysinfo.go | \
1400     sed -e 's/_in6_addr_t/[16]byte/g' \
1401     >> ${OUT}
1402
1403 # Type 'uint128' is needed in a couple of type definitions on arm64,such
1404 # as _user_fpsimd_struct, _elf_fpregset_t, etc.
1405 if ! grep '^type uint128' ${OUT} > /dev/null 2>&1; then
1406     echo "type uint128 [16]byte" >> ${OUT}
1407 fi
1408
1409 exit $?