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