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 '^type _timeval ' | \
  33   grep -v '^type _timespec_t ' | \
  34   grep -v '^type _timespec ' | \
  35   grep -v '^type _timestruc_t ' | \
  36   grep -v '^type _epoll_' | \
  37   grep -v 'in6_addr' | \
  38   grep -v 'sockaddr_in6' | \
  39   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
  40       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  41       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  42       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
  43     >> ${OUT}
  44
  45 # On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
  46 # a field of type _in6_addr, but other types depend on _arpcom, so we need to
  47 # put it back.
  48 grep '^type _arpcom ' gen-sysinfo.go | \
  49   sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
  50
  51 # The errno constants.  These get type Errno.
  52   egrep '#define E[A-Z0-9_]+ ' errno.i | \
  53   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
  54
  55 # The O_xxx flags.
  56 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
  57   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
  58 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
  59   echo "const O_ASYNC = 0" >> ${OUT}
  60 fi
  61 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  62   echo "const O_CLOEXEC = 0" >> ${OUT}
  63 fi
  64
  65 # The os package requires F_DUPFD_CLOEXEC to be defined.
  66 if ! grep '^const F_DUPFD_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  67   echo "const F_DUPFD_CLOEXEC = 0" >> ${OUT}
  68 fi
  69
  70 # AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
  71 # which leads to a constant overflow when using O_CLOEXEC in some
  72 # go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
  73 # more present in 7.2 (_FCLOEXEC is a 32 bit value).
  74 if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
  75     sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
  76     mv ${OUT}-2 ${OUT}
  77 fi
  78
  79 # These flags can be lost on i386 GNU/Linux when using
  80 # -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
  81 # before we see the definition of F_SETLK64.
  82 for flag in F_GETLK F_SETLK F_SETLKW; do
  83   if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
  84       && grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
  85     echo "const ${flag} = ${flag}64" >> ${OUT}
  86   fi
  87 done
  88
  89 # The Flock_t struct for fcntl.
  90 grep '^type _flock ' gen-sysinfo.go | \
  91     sed -e 's/type _flock/type Flock_t/' \
  92       -e 's/l_type/Type/' \
  93       -e 's/l_whence/Whence/' \
  94       -e 's/l_start/Start/' \
  95       -e 's/l_len/Len/' \
  96       -e 's/l_pid/Pid/' \
  97     >> ${OUT}
  98
  99 # The signal numbers.
 100 grep '^const _SIG[^_]' gen-sysinfo.go | \
 101   grep -v '^const _SIGEV_' | \
 102   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 103 if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
 104   if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
 105     echo "const SIGPOLL = SIGIO" >> ${OUT}
 106   fi
 107 fi
 108 if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
 109   if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
 110     echo "const SIGCLD = SIGCHLD" >> ${OUT}
 111   fi
 112 fi
 113
 114 # The syscall numbers.  We force the names to upper case.
 115 grep '^const _SYS_' gen-sysinfo.go | \
 116   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 117   while read sys; do
 118     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 119     echo "const $sup = _$sys" >> ${OUT}
 120   done
 121
 122 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 123 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
 124   echo "const SYS_GETDENTS = 0" >> ${OUT}
 125 fi
 126 if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
 127   echo "const SYS_GETDENTS64 = 0" >> ${OUT}
 128 fi
 129
 130 # Stat constants.
 131 grep '^const _S_' gen-sysinfo.go | \
 132   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 133
 134 # Mmap constants.
 135 grep '^const _PROT_' gen-sysinfo.go | \
 136   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 137 grep '^const _MAP_' gen-sysinfo.go | \
 138   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 139 grep '^const _MADV_' gen-sysinfo.go | \
 140   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 141 grep '^const _MCL_' gen-sysinfo.go | \
 142   sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 143
 144 # Process status constants.
 145 grep '^const _W' gen-sysinfo.go |
 146   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 147 # WSTOPPED was introduced in glibc 2.3.4.
 148 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 149   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 150     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 151   else
 152     echo 'const WSTOPPED = 2' >> ${OUT}
 153   fi
 154 fi
 155 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 156    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 157   echo 'const WALL = ___WALL' >> ${OUT}
 158 fi
 159
 160 # Networking constants.
 161 egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 162   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 163 grep '^const _SOMAXCONN' gen-sysinfo.go |
 164   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 165     >> ${OUT}
 166 grep '^const _SHUT_' gen-sysinfo.go |
 167   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 168
 169 # The net package requires some const definitions.
 170 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
 171   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 172     echo "const $m = 0" >> ${OUT}
 173   fi
 174 done
 175 for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
 176   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 177     echo "const $m = -1" >> ${OUT}
 178   fi
 179 done
 180
 181 # The syscall package requires AF_LOCAL.
 182 if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
 183   if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
 184     echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
 185   fi
 186 fi
 187
 188 # sysconf constants.
 189 grep '^const __SC' gen-sysinfo.go |
 190   sed -e 's/^\(const \)__\(SC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 191
 192 # pathconf constants.
 193 grep '^const __PC' gen-sysinfo.go |
 194   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 195
 196 # The PATH_MAX constant.
 197 if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
 198   echo 'const PathMax = _PATH_MAX' >> ${OUT}
 199 fi
 200
 201 # epoll constants.
 202 grep '^const _EPOLL' gen-sysinfo.go |
 203   grep -v EPOLLET |
 204   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 205 # Make sure EPOLLET is positive.
 206 if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go >/dev/null 2>&1; then
 207   grep '^const _EPOLLET ' gen-sysinfo.go |
 208     sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 209 else
 210   echo "const EPOLLET = 0x80000000" >> ${OUT}
 211 fi
 212 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 213 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 214   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 215 fi
 216 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 217   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 218 fi
 219
 220 # Prctl constants.
 221 grep '^const _PR_' gen-sysinfo.go |
 222   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 223
 224 # Ptrace constants.
 225 grep '^const _PTRACE' gen-sysinfo.go |
 226   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 227 # We need some ptrace options that are not defined in older versions
 228 # of glibc.
 229 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 230   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 231 fi
 232 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 233   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 234 fi
 235 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 236   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 237 fi
 238 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 239   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 240 fi
 241 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 242   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 243 fi
 244 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 245   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 246 fi
 247 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 248   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 249 fi
 250 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 251   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 252 fi
 253 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 254   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 255 fi
 256 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 257   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 258 fi
 259 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 260   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 261 fi
 262 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 263   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 264 fi
 265 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 266   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 267 fi
 268 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 269   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 270 fi
 271 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 272   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 273 fi
 274 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 275   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 276 fi
 277 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 278   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 279 fi
 280
 281 # A helper function that prints a structure from gen-sysinfo.go with the first
 282 # letter of the field names in upper case.  $1 is the name of structure.  If $2
 283 # is not empty, the structure or type is renamed to $2.
 284 upcase_fields () {
 285   name="$1"
 286   def=`grep "^type $name " gen-sysinfo.go`
 287   fields=`echo $def | sed -e 's/^[^{]*{\(.*\)}$/\1/'`
 288   prefix=`echo $def | sed -e 's/{.*//'`
 289   if test "$2" != ""; then
 290     prefix=`echo $prefix | sed -e "s/$1/$2/"`
 291   fi
 292   if test "$fields" != ""; then
 293     nfields=
 294     while test -n "$fields"; do
 295       field=`echo $fields | sed -e 's/^\([^;]*\);.*$/\1/'`
 296       fields=`echo $fields | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 297       # capitalize the next character.
 298       f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 299       r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 300       f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 301       field="$f$r"
 302       nfields="$nfields $field;"
 303     done
 304     echo "${prefix} {$nfields }"
 305   fi
 306 }
 307
 308 # The registers returned by PTRACE_GETREGS.  This is probably
 309 # GNU/Linux specific; it should do no harm if there is no
 310 # _user_regs_struct.
 311 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 312 if test "$regs" = ""; then
 313   # s390
 314   regs=`grep '^type __user_regs_struct struct' gen-sysinfo.go || true`
 315   if test "$regs" != ""; then
 316     # Substructures of __user_regs_struct on s390
 317     upcase_fields "__user_psw_struct" "PtracePsw" >> ${OUT} || true
 318     upcase_fields "__user_fpregs_struct" "PtraceFpregs" >> ${OUT} || true
 319     upcase_fields "__user_per_struct" "PtracePer" >> ${OUT} || true
 320   else
 321     # mips*
 322     regs=`grep '^type _pt_regs struct' gen-sysinfo.go || true`
 323   fi
 324 fi
 325 if test "$regs" != ""; then
 326   regs=`echo $regs | sed -e 's/type _pt_regs struct//'`
 327   regs=`echo $regs |
 328     sed -e 's/type __*user_regs_struct struct //' -e 's/[{}]//g'`
 329   regs=`echo $regs | sed -e s'/^ *//'`
 330   nregs=
 331   while test -n "$regs"; do
 332     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 333     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 334     # Capitalize the first character of the field.
 335     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 336     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 337     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 338     field="$f$r"
 339     field=`echo "$field" | sed \
 340       -e 's/__user_psw_struct/PtracePsw/' \
 341       -e 's/__user_fpregs_struct/PtraceFpregs/' \
 342       -e 's/__user_per_struct/PtracePer/'`
 343     nregs="$nregs $field;"
 344   done
 345   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 346 fi
 347
 348 # Some basic types.
 349 echo 'type Size_t _size_t' >> ${OUT}
 350 echo "type Ssize_t _ssize_t" >> ${OUT}
 351 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 352   echo "type Offset_t _off64_t" >> ${OUT}
 353 else
 354   echo "type Offset_t _off_t" >> ${OUT}
 355 fi
 356 echo "type Mode_t _mode_t" >> ${OUT}
 357 echo "type Pid_t _pid_t" >> ${OUT}
 358 echo "type Uid_t _uid_t" >> ${OUT}
 359 echo "type Gid_t _gid_t" >> ${OUT}
 360 echo "type Socklen_t _socklen_t" >> ${OUT}
 361
 362 # The C int type.
 363 sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 364 if test "$sizeof_int" = "4"; then
 365   echo "type _C_int int32" >> ${OUT}
 366   echo "type _C_uint uint32" >> ${OUT}
 367 elif test "$sizeof_int" = "8"; then
 368   echo "type _C_int int64" >> ${OUT}
 369   echo "type _C_uint uint64" >> ${OUT}
 370 else
 371   echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
 372   exit 1
 373 fi
 374
 375 # The C long type, needed because that is the type that ptrace returns.
 376 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 377 if test "$sizeof_long" = "4"; then
 378   echo "type _C_long int32" >> ${OUT}
 379   echo "type _C_ulong uint32" >> ${OUT}
 380 elif test "$sizeof_long" = "8"; then
 381   echo "type _C_long int64" >> ${OUT}
 382   echo "type _C_ulong uint64" >> ${OUT}
 383 else
 384   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 385   exit 1
 386 fi
 387
 388 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 389 # double is commented by -fdump-go-spec.
 390 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 391   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 392 fi
 393 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 394   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 395 fi
 396
 397 # The time_t type.
 398 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 399   echo 'type Time_t _time_t' >> ${OUT}
 400 fi
 401
 402 # The time structures need special handling: we need to name the
 403 # types, so that we can cast integers to the right types when
 404 # assigning to the structures.
 405 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 406 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 407 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 408 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 409 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 410 echo $timeval | \
 411   sed -e 's/type _timeval /type Timeval /' \
 412       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 413       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 414 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 415 if test "$timespec" = ""; then
 416   # IRIX 6.5 has __timespec instead.
 417   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 418 fi
 419 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 420 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 421 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 422 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 423 echo $timespec | \
 424   sed -e 's/^type ___timespec /type Timespec /' \
 425       -e 's/^type _timespec /type Timespec /' \
 426       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 427       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 428
 429 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 430 if test "$timestruc" != ""; then
 431   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 432   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 433   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 434   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 435   echo $timestruc | \
 436     sed -e 's/^type _timestruc_t /type Timestruc /' \
 437         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 438         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 439 fi
 440
 441 # The tms struct.
 442 grep '^type _tms ' gen-sysinfo.go | \
 443     sed -e 's/type _tms/type Tms/' \
 444       -e 's/tms_utime/Utime/' \
 445       -e 's/tms_stime/Stime/' \
 446       -e 's/tms_cutime/Cutime/' \
 447       -e 's/tms_cstime/Cstime/' \
 448     >> ${OUT}
 449
 450 # The stat type.
 451 # Prefer largefile variant if available.
 452 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 453 if test "$stat" != ""; then
 454   grep '^type _stat64 ' gen-sysinfo.go
 455 else
 456   grep '^type _stat ' gen-sysinfo.go
 457 fi | sed -e 's/type _stat64/type Stat_t/' \
 458          -e 's/type _stat/type Stat_t/' \
 459          -e 's/st_dev/Dev/' \
 460          -e 's/st_ino/Ino/g' \
 461          -e 's/st_nlink/Nlink/' \
 462          -e 's/st_mode/Mode/' \
 463          -e 's/st_uid/Uid/' \
 464          -e 's/st_gid/Gid/' \
 465          -e 's/st_rdev/Rdev/' \
 466          -e 's/st_size/Size/' \
 467          -e 's/st_blksize/Blksize/' \
 468          -e 's/st_blocks/Blocks/' \
 469          -e 's/st_atim/Atim/' \
 470          -e 's/st_mtim/Mtim/' \
 471          -e 's/st_ctim/Ctim/' \
 472          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 473          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 474          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 475          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 476          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 477        >> ${OUT}
 478
 479 # The directory searching types.
 480 # Prefer largefile variant if available.
 481 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 482 if test "$dirent" != ""; then
 483   grep '^type _dirent64 ' gen-sysinfo.go
 484 else
 485   grep '^type _dirent ' gen-sysinfo.go
 486 fi | sed -e 's/type _dirent64/type Dirent/' \
 487          -e 's/type _dirent/type Dirent/' \
 488          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 489          -e 's/d_name/Name/' \
 490          -e 's/]int8/]byte/' \
 491          -e 's/d_ino/Ino/' \
 492          -e 's/d_off/Off/' \
 493          -e 's/d_reclen/Reclen/' \
 494          -e 's/d_type/Type/' \
 495       >> ${OUT}
 496 echo "type DIR _DIR" >> ${OUT}
 497
 498 # Values for d_type field in dirent.
 499 grep '^const _DT_' gen-sysinfo.go |
 500   sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 501
 502 # The rusage struct.
 503 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 504 if test "$rusage" != ""; then
 505   # Remove anonymous unions from GNU/Linux <bits/resource.h>.
 506   rusage=`echo $rusage | sed -e 's/Godump_[0-9][0-9]* struct {\([^}]*\)};/\1/g'`
 507   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 508   rusage=`echo $rusage | sed -e 's/^ *//'`
 509   nrusage=
 510   while test -n "$rusage"; do
 511     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 512     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 513     # Drop the leading ru_, capitalize the next character.
 514     field=`echo $field | sed -e 's/^ru_//'`
 515     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 516     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 517     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 518     # Fix _timeval _timespec, and _timestruc_t.
 519     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 520     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 521     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 522     field="$f$r"
 523     nrusage="$nrusage $field;"
 524   done
 525   echo "type Rusage struct {$nrusage }" >> ${OUT}
 526 else
 527   echo "type Rusage struct {}" >> ${OUT}
 528 fi
 529
 530 # The RUSAGE constants.
 531 grep '^const _RUSAGE_' gen-sysinfo.go | \
 532   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 533
 534 # The utsname struct.
 535 grep '^type _utsname ' gen-sysinfo.go | \
 536     sed -e 's/_utsname/Utsname/' \
 537       -e 's/sysname/Sysname/' \
 538       -e 's/nodename/Nodename/' \
 539       -e 's/release/Release/' \
 540       -e 's/version/Version/' \
 541       -e 's/machine/Machine/' \
 542       -e 's/domainname/Domainname/' \
 543     >> ${OUT}
 544
 545 # The iovec struct.
 546 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 547 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 548 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 549 echo $iovec | \
 550     sed -e 's/_iovec/Iovec/' \
 551       -e 's/iov_base/Base/' \
 552       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 553     >> ${OUT}
 554
 555 # The msghdr struct.
 556 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 557 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 558 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 559 echo $msghdr | \
 560     sed -e 's/_msghdr/Msghdr/' \
 561       -e 's/msg_name/Name/' \
 562       -e 's/msg_namelen/Namelen/' \
 563       -e 's/msg_iov/Iov/' \
 564       -e 's/msg_iovlen/Iovlen/' \
 565       -e 's/_iovec/Iovec/' \
 566       -e 's/msg_control/Control/' \
 567       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 568       -e 's/msg_flags/Flags/' \
 569     >> ${OUT}
 570
 571 # The MSG_ flags for Msghdr.
 572 grep '^const _MSG_' gen-sysinfo.go | \
 573   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 574
 575 # The cmsghdr struct.
 576 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 577 if test -n "$cmsghdr"; then
 578   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 579   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 580   echo "$cmsghdr" | \
 581       sed -e 's/_cmsghdr/Cmsghdr/' \
 582         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 583         -e 's/cmsg_level/Level/' \
 584         -e 's/cmsg_type/Type/' \
 585         -e 's/\[\]/[0]/' \
 586       >> ${OUT}
 587 fi
 588
 589 # The SCM_ flags for Cmsghdr.
 590 grep '^const _SCM_' gen-sysinfo.go | \
 591   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 592
 593 # The ucred struct.
 594 upcase_fields "_ucred" "Ucred" >> ${OUT} || true
 595
 596 # The ip_mreq struct.
 597 grep '^type _ip_mreq ' gen-sysinfo.go | \
 598     sed -e 's/_ip_mreq/IPMreq/' \
 599       -e 's/imr_multiaddr/Multiaddr/' \
 600       -e 's/imr_interface/Interface/' \
 601       -e 's/_in_addr/[4]byte/g' \
 602     >> ${OUT}
 603
 604 # We need IPMreq to compile the net package.
 605 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 606   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 607 fi
 608
 609 # The ipv6_mreq struct.
 610 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 611     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 612       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 613       -e 's/ipv6mr_interface/Interface/' \
 614       -e 's/_in6_addr/[16]byte/' \
 615     >> ${OUT}
 616
 617 # We need IPv6Mreq to compile the net package.
 618 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 619   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 620 fi
 621
 622 # The ip_mreqn struct.
 623 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 624     sed -e 's/_ip_mreqn/IPMreqn/' \
 625       -e 's/imr_multiaddr/Multiaddr/' \
 626       -e 's/imr_address/Address/' \
 627       -e 's/imr_ifindex/Ifindex/' \
 628       -e 's/_in_addr/[4]byte/g' \
 629     >> ${OUT}
 630
 631 # We need IPMreq to compile the net package.
 632 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 633   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 634 fi
 635
 636 # The icmp6_filter struct.
 637 grep '^type _icmp6_filter ' gen-sysinfo.go | \
 638     sed -e 's/_icmp6_filter/ICMPv6Filter/' \
 639       -e 's/data/Data/' \
 640       -e 's/filt/Filt/' \
 641     >> ${OUT}
 642
 643 # We need ICMPv6Filter to compile the syscall package.
 644 if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
 645   echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
 646 fi
 647
 648 # The ip6_mtuinfo struct.
 649 grep '^type _ip6_mtuinfo ' gen-sysinfo.go | \
 650     sed -e 's/_ip6_mtuinfo/IPv6MTUInfo/' \
 651       -e 's/ip6m_addr/Addr/' \
 652       -e 's/_sockaddr_in6/RawSockaddrInet6/' \
 653       -e 's/ip6m_mtu/Mtu/' \
 654     >> ${OUT}
 655
 656 # Try to guess the type to use for fd_set.
 657 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 658 fds_bits_type="_C_long"
 659 if test "$fd_set" != ""; then
 660     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 661 fi
 662 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 663
 664 # The addrinfo struct.
 665 grep '^type _addrinfo ' gen-sysinfo.go | \
 666     sed -e 's/_addrinfo/Addrinfo/g' \
 667       -e 's/ ai_/ Ai_/g' \
 668     >> ${OUT}
 669
 670 # The addrinfo and nameinfo flags and errors.
 671 grep '^const _AI_' gen-sysinfo.go | \
 672   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 673 grep '^const _EAI_' gen-sysinfo.go | \
 674   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 675 grep '^const _NI_' gen-sysinfo.go | \
 676   sed -e 's/^\(const \)_\(NI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 677
 678 # If nothing else defined EAI_OVERFLOW, make sure it has a value.
 679 if ! grep "const EAI_OVERFLOW " ${OUT} >/dev/null 2>&1; then
 680   echo "const EAI_OVERFLOW = 0" >> ${OUT}
 681 fi
 682
 683 # The passwd struct.
 684 grep '^type _passwd ' gen-sysinfo.go | \
 685     sed -e 's/_passwd/Passwd/' \
 686       -e 's/ pw_/ Pw_/g' \
 687     >> ${OUT}
 688
 689 # The group struct.
 690 grep '^type _group ' gen-sysinfo.go | \
 691     sed -e 's/_group/Group/' \
 692       -e 's/ gr_/ Gr_/g' \
 693     >> ${OUT}
 694
 695 # The ioctl flags for the controlling TTY.
 696 grep '^const _TIOC' gen-sysinfo.go | \
 697     grep -v '_val =' | \
 698     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 699 grep '^const _TUNSET' gen-sysinfo.go | \
 700     grep -v '_val =' | \
 701     sed -e 's/^\(const \)_\(TUNSET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 702 # We need TIOCGWINSZ.
 703 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 704   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 705     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 706   fi
 707 fi
 708 if ! grep '^const TIOCSWINSZ' ${OUT} >/dev/null 2>&1; then
 709   if grep '^const _TIOCSWINSZ_val' ${OUT} >/dev/null 2>&1; then
 710     echo 'const TIOCSWINSZ = _TIOCSWINSZ_val' >> ${OUT}
 711   fi
 712 fi
 713 if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
 714   if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
 715     echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
 716   fi
 717 fi
 718 if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
 719   if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
 720     echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
 721   fi
 722 fi
 723 if ! grep '^const TIOCGPGRP' ${OUT} >/dev/null 2>&1; then
 724   if grep '^const _TIOCGPGRP_val' ${OUT} >/dev/null 2>&1; then
 725     echo 'const TIOCGPGRP = _TIOCGPGRP_val' >> ${OUT}
 726   fi
 727 fi
 728 if ! grep '^const TIOCSPGRP' ${OUT} >/dev/null 2>&1; then
 729   if grep '^const _TIOCSPGRP_val' ${OUT} >/dev/null 2>&1; then
 730     echo 'const TIOCSPGRP = _TIOCSPGRP_val' >> ${OUT}
 731   fi
 732 fi
 733 if ! grep '^const TIOCGPTN' ${OUT} >/dev/null 2>&1; then
 734   if grep '^const _TIOCGPTN_val' ${OUT} >/dev/null 2>&1; then
 735     echo 'const TIOCGPTN = _TIOCGPTN_val' >> ${OUT}
 736   fi
 737 fi
 738 if ! grep '^const TIOCSPTLCK' ${OUT} >/dev/null 2>&1; then
 739   if grep '^const _TIOCSPTLCK_val' ${OUT} >/dev/null 2>&1; then
 740     echo 'const TIOCSPTLCK = _TIOCSPTLCK_val' >> ${OUT}
 741   fi
 742 fi
 743 if ! grep '^const TIOCGDEV' ${OUT} >/dev/null 2>&1; then
 744   if grep '^const _TIOCGDEV_val' ${OUT} >/dev/null 2>&1; then
 745     echo 'const TIOCGDEV = _TIOCGDEV_val' >> ${OUT}
 746   fi
 747 fi
 748 if ! grep '^const TIOCSIG' ${OUT} >/dev/null 2>&1; then
 749   if grep '^const _TIOCSIG_val' ${OUT} >/dev/null 2>&1; then
 750     echo 'const TIOCSIG = _TIOCSIG_val' >> ${OUT}
 751   fi
 752 fi
 753
 754 if ! grep '^const TUNSETNOCSUM' ${OUT} >/dev/null 2>&1; then
 755   if grep '^const _TUNSETNOCSUM_val' ${OUT} >/dev/null 2>&1; then
 756     echo 'const TUNSETNOCSUM = _TUNSETNOCSUM_val' >> ${OUT}
 757   fi
 758 fi
 759
 760 if ! grep '^const TUNSETDEBUG' ${OUT} >/dev/null 2>&1; then
 761   if grep '^const _TUNSETDEBUG_val' ${OUT} >/dev/null 2>&1; then
 762     echo 'const TUNSETDEBUG = _TUNSETDEBUG_val' >> ${OUT}
 763   fi
 764 fi
 765
 766 if ! grep '^const TUNSETIFF' ${OUT} >/dev/null 2>&1; then
 767   if grep '^const _TUNSETIFF_val' ${OUT} >/dev/null 2>&1; then
 768     echo 'const TUNSETIFF = _TUNSETIFF_val' >> ${OUT}
 769   fi
 770 fi
 771
 772 if ! grep '^const TUNSETPERSIST' ${OUT} >/dev/null 2>&1; then
 773   if grep '^const _TUNSETPERSIST_val' ${OUT} >/dev/null 2>&1; then
 774     echo 'const TUNSETPERSIST = _TUNSETPERSIST_val' >> ${OUT}
 775   fi
 776 fi
 777
 778 if ! grep '^const TUNSETOWNER' ${OUT} >/dev/null 2>&1; then
 779   if grep '^const _TUNSETOWNER_val' ${OUT} >/dev/null 2>&1; then
 780     echo 'const TUNSETOWNER = _TUNSETOWNER_val' >> ${OUT}
 781   fi
 782 fi
 783
 784 if ! grep '^const TUNSETLINK' ${OUT} >/dev/null 2>&1; then
 785   if grep '^const _TUNSETLINK_val' ${OUT} >/dev/null 2>&1; then
 786     echo 'const TUNSETLINK = _TUNSETLINK_val' >> ${OUT}
 787   fi
 788 fi
 789
 790 if ! grep '^const TUNSETGROUP' ${OUT} >/dev/null 2>&1; then
 791   if grep '^const _TUNSETGROUP_val' ${OUT} >/dev/null 2>&1; then
 792     echo 'const TUNSETGROUP = _TUNSETGROUP_val' >> ${OUT}
 793   fi
 794 fi
 795
 796 if ! grep '^const TUNGETFEATURES' ${OUT} >/dev/null 2>&1; then
 797   if grep '^const _TUNGETFEATURES_val' ${OUT} >/dev/null 2>&1; then
 798     echo 'const TUNGETFEATURES = _TUNGETFEATURES_val' >> ${OUT}
 799   fi
 800 fi
 801
 802 if ! grep '^const TUNSETOFFLOAD' ${OUT} >/dev/null 2>&1; then
 803   if grep '^const _TUNSETOFFLOAD_val' ${OUT} >/dev/null 2>&1; then
 804     echo 'const TUNSETOFFLOAD = _TUNSETOFFLOAD_val' >> ${OUT}
 805   fi
 806 fi
 807
 808 if ! grep '^const TUNSETTXFILTER' ${OUT} >/dev/null 2>&1; then
 809   if grep '^const _TUNSETTXFILTER_val' ${OUT} >/dev/null 2>&1; then
 810     echo 'const TUNSETTXFILTER = _TUNSETTXFILTER_val' >> ${OUT}
 811   fi
 812 fi
 813
 814 if ! grep '^const TUNGETIFF' ${OUT} >/dev/null 2>&1; then
 815   if grep '^const _TUNGETIFF_val' ${OUT} >/dev/null 2>&1; then
 816     echo 'const TUNGETIFF = _TUNGETIFF_val' >> ${OUT}
 817   fi
 818 fi
 819
 820 if ! grep '^const TUNGETSNDBUF' ${OUT} >/dev/null 2>&1; then
 821   if grep '^const _TUNGETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 822     echo 'const TUNGETSNDBUF = _TUNGETSNDBUF_val' >> ${OUT}
 823   fi
 824 fi
 825
 826 if ! grep '^const TUNSETSNDBUF' ${OUT} >/dev/null 2>&1; then
 827   if grep '^const _TUNSETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 828     echo 'const TUNSETSNDBUF = _TUNSETSNDBUF_val' >> ${OUT}
 829   fi
 830 fi
 831
 832 if ! grep '^const TUNATTACHFILTER' ${OUT} >/dev/null 2>&1; then
 833   if grep '^const _TUNATTACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 834     echo 'const TUNATTACHFILTER = _TUNATTACHFILTER_val' >> ${OUT}
 835   fi
 836 fi
 837
 838 if ! grep '^const TUNDETACHFILTER' ${OUT} >/dev/null 2>&1; then
 839   if grep '^const _TUNDETACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 840     echo 'const TUNDETACHFILTER = _TUNDETACHFILTER_val' >> ${OUT}
 841   fi
 842 fi
 843
 844 if ! grep '^const TUNGETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 845   if grep '^const _TUNGETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 846     echo 'const TUNGETVNETHDRSZ = _TUNGETVNETHDRSZ_val' >> ${OUT}
 847   fi
 848 fi
 849
 850 if ! grep '^const TUNSETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 851   if grep '^const _TUNSETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 852     echo 'const TUNSETVNETHDRSZ = _TUNSETVNETHDRSZ_val' >> ${OUT}
 853   fi
 854 fi
 855
 856 if ! grep '^const TUNSETQUEUE' ${OUT} >/dev/null 2>&1; then
 857   if grep '^const _TUNSETQUEUE_val' ${OUT} >/dev/null 2>&1; then
 858     echo 'const TUNSETQUEUE = _TUNSETQUEUE_val' >> ${OUT}
 859   fi
 860 fi
 861
 862
 863 if ! grep '^const TUNSETIFINDEX' ${OUT} >/dev/null 2>&1; then
 864   if grep '^const _TUNSETIFINDEX_val' ${OUT} >/dev/null 2>&1; then
 865     echo 'const TUNSETIFINDEX = _TUNSETIFINDEX_val' >> ${OUT}
 866   fi
 867 fi
 868
 869 if ! grep '^const TUNGETFILTER' ${OUT} >/dev/null 2>&1; then
 870   if grep '^const _TUNGETFILTER_val' ${OUT} >/dev/null 2>&1; then
 871     echo 'const TUNGETFILTER = _TUNGETFILTER_val' >> ${OUT}
 872   fi
 873 fi
 874
 875 # The ioctl flags for terminal control
 876 grep '^const _TC[GS]ET' gen-sysinfo.go | grep -v _val | \
 877     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 878 if ! grep '^const TCGETS' ${OUT} >/dev/null 2>&1; then
 879   if grep '^const _TCGETS_val' ${OUT} >/dev/null 2>&1; then
 880     echo 'const TCGETS = _TCGETS_val' >> ${OUT}
 881   fi
 882 fi
 883 if ! grep '^const TCSETS' ${OUT} >/dev/null 2>&1; then
 884   if grep '^const _TCSETS_val' ${OUT} >/dev/null 2>&1; then
 885     echo 'const TCSETS = _TCSETS_val' >> ${OUT}
 886   fi
 887 fi
 888
 889 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 890 # needs handling in syscalls.exec.go.
 891 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 892   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 893     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 894   fi
 895 fi
 896
 897 # If nothing else defined TIOCSCTTY, make sure it has a value.
 898 if ! grep "const TIOCSCTTY " ${OUT} >/dev/null 2>&1; then
 899   echo "const TIOCSCTTY = 0" >> ${OUT}
 900 fi
 901
 902 # The nlmsghdr struct.
 903 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 904     sed -e 's/_nlmsghdr/NlMsghdr/' \
 905       -e 's/nlmsg_len/Len/' \
 906       -e 's/nlmsg_type/Type/' \
 907       -e 's/nlmsg_flags/Flags/' \
 908       -e 's/nlmsg_seq/Seq/' \
 909       -e 's/nlmsg_pid/Pid/' \
 910     >> ${OUT}
 911
 912 # The nlmsg flags and operators.
 913 grep '^const _NLM' gen-sysinfo.go | \
 914     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 915
 916 # NLMSG_HDRLEN is defined as an expression using sizeof.
 917 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 918   if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
 919     echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
 920   fi
 921 fi
 922
 923 # The rtmsg struct.
 924 grep '^type _rtmsg ' gen-sysinfo.go | \
 925     sed -e 's/_rtmsg/RtMsg/' \
 926       -e 's/rtm_family/Family/' \
 927       -e 's/rtm_dst_len/Dst_len/' \
 928       -e 's/rtm_src_len/Src_len/' \
 929       -e 's/rtm_tos/Tos/' \
 930       -e 's/rtm_table/Table/' \
 931       -e 's/rtm_protocol/Protocol/' \
 932       -e 's/rtm_scope/Scope/' \
 933       -e 's/rtm_type/Type/' \
 934       -e 's/rtm_flags/Flags/' \
 935     >> ${OUT}
 936
 937 # The rtgenmsg struct.
 938 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 939     sed -e 's/_rtgenmsg/RtGenmsg/' \
 940       -e 's/rtgen_family/Family/' \
 941     >> ${OUT}
 942
 943 # The routing message flags.
 944 grep '^const _RT_' gen-sysinfo.go | \
 945     sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 946 grep '^const _RTA' gen-sysinfo.go | \
 947     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 948 grep '^const _RTF' gen-sysinfo.go | \
 949     sed -e 's/^\(const \)_\(RTF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 950 grep '^const _RTCF' gen-sysinfo.go | \
 951     sed -e 's/^\(const \)_\(RTCF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 952 grep '^const _RTM' gen-sysinfo.go | \
 953     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 954 grep '^const _RTN' gen-sysinfo.go | \
 955     sed -e 's/^\(const \)_\(RTN[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 956 grep '^const _RTPROT' gen-sysinfo.go | \
 957     sed -e 's/^\(const \)_\(RTPROT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 958
 959 # The ifinfomsg struct.
 960 grep '^type _ifinfomsg ' gen-sysinfo.go | \
 961     sed -e 's/_ifinfomsg/IfInfomsg/' \
 962       -e 's/ifi_family/Family/' \
 963       -e 's/ifi_type/Type/' \
 964       -e 's/ifi_index/Index/' \
 965       -e 's/ifi_flags/Flags/' \
 966       -e 's/ifi_change/Change/' \
 967     >> ${OUT}
 968
 969 # The interface information types and flags.
 970 grep '^const _IFA' gen-sysinfo.go | \
 971     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 972 grep '^const _IFLA' gen-sysinfo.go | \
 973     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 974 grep '^const _IFF' gen-sysinfo.go | \
 975     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 976 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
 977     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 978 grep '^const _SIOC' gen-sysinfo.go |
 979     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 980
 981 # The ifaddrmsg struct.
 982 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
 983     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
 984       -e 's/ifa_family/Family/' \
 985       -e 's/ifa_prefixlen/Prefixlen/' \
 986       -e 's/ifa_flags/Flags/' \
 987       -e 's/ifa_scope/Scope/' \
 988       -e 's/ifa_index/Index/' \
 989     >> ${OUT}
 990
 991 # The rtattr struct.
 992 grep '^type _rtattr ' gen-sysinfo.go | \
 993     sed -e 's/_rtattr/RtAttr/' \
 994       -e 's/rta_len/Len/' \
 995       -e 's/rta_type/Type/' \
 996     >> ${OUT}
 997
 998 # The in_pktinfo struct.
 999 grep '^type _in_pktinfo ' gen-sysinfo.go | \
1000     sed -e 's/_in_pktinfo/Inet4Pktinfo/' \
1001       -e 's/ipi_ifindex/Ifindex/' \
1002       -e 's/ipi_spec_dst/Spec_dst/' \
1003       -e 's/ipi_addr/Addr/' \
1004       -e 's/_in_addr/[4]byte/g' \
1005     >> ${OUT}
1006
1007 # The in6_pktinfo struct.
1008 grep '^type _in6_pktinfo ' gen-sysinfo.go | \
1009     sed -e 's/_in6_pktinfo/Inet6Pktinfo/' \
1010       -e 's/ipi6_addr/Addr/' \
1011       -e 's/ipi6_ifindex/Ifindex/' \
1012       -e 's/_in6_addr/[16]byte/' \
1013     >> ${OUT}
1014
1015 # The termios struct.
1016 grep '^type _termios ' gen-sysinfo.go | \
1017     sed -e 's/_termios/Termios/' \
1018       -e 's/c_iflag/Iflag/' \
1019       -e 's/c_oflag/Oflag/' \
1020       -e 's/c_cflag/Cflag/' \
1021       -e 's/c_lflag/Lflag/' \
1022       -e 's/c_line/Line/' \
1023       -e 's/c_cc/Cc/' \
1024       -e 's/c_ispeed/Ispeed/' \
1025       -e 's/c_ospeed/Ospeed/' \
1026     >> ${OUT}
1027
1028 # The termios constants.
1029 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
1030     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
1031     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 CS5 CS6 CS7 CS8 TABDLY \
1032     BSDLY VTDLY FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL \
1033     CLOCAL LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK \
1034     ECHONL ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN \
1035     VINTR VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP \
1036     VSUSP VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
1037     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
1038     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
1039     B38400 B57600 B115200 B230400 B460800 B500000 B576000 B921600 B1000000 \
1040     B1152000 B1500000 B2000000 B2500000 B3000000 B3500000 B4000000; do
1041
1042     grep "^const _$n " gen-sysinfo.go | \
1043         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1044 done
1045
1046 # The mount flags
1047 grep '^const _MNT_' gen-sysinfo.go |
1048     sed -e 's/^\(const \)_\(MNT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1049 grep '^const _MS_' gen-sysinfo.go |
1050     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1051
1052 # The fallocate flags.
1053 grep '^const _FALLOC_' gen-sysinfo.go |
1054     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1055
1056 # The statfs struct.
1057 # Prefer largefile variant if available.
1058 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
1059 if test "$statfs" != ""; then
1060   grep '^type _statfs64 ' gen-sysinfo.go
1061 else
1062   grep '^type _statfs ' gen-sysinfo.go
1063 fi | sed -e 's/type _statfs64/type Statfs_t/' \
1064          -e 's/type _statfs/type Statfs_t/' \
1065          -e 's/f_type/Type/' \
1066          -e 's/f_bsize/Bsize/' \
1067          -e 's/f_blocks/Blocks/' \
1068          -e 's/f_bfree/Bfree/' \
1069          -e 's/f_bavail/Bavail/' \
1070          -e 's/f_files/Files/' \
1071          -e 's/f_ffree/Ffree/' \
1072          -e 's/f_fsid/Fsid/' \
1073          -e 's/f_namelen/Namelen/' \
1074          -e 's/f_frsize/Frsize/' \
1075          -e 's/f_flags/Flags/' \
1076          -e 's/f_spare/Spare/' \
1077     >> ${OUT}
1078
1079 # The timex struct.
1080 timex=`grep '^type _timex ' gen-sysinfo.go || true`
1081 if test "$timex" = ""; then
1082   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
1083   if test "$timex" != ""; then
1084     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
1085   fi
1086 fi
1087 if test "$timex" != ""; then
1088   echo "$timex" | \
1089     sed -e 's/_timex/Timex/' \
1090       -e 's/modes/Modes/' \
1091       -e 's/offset/Offset/' \
1092       -e 's/freq/Freq/' \
1093       -e 's/maxerror/Maxerror/' \
1094       -e 's/esterror/Esterror/' \
1095       -e 's/status/Status/' \
1096       -e 's/constant/Constant/' \
1097       -e 's/precision/Precision/' \
1098       -e 's/tolerance/Tolerance/' \
1099       -e 's/ time / Time /' \
1100       -e 's/tick/Tick/' \
1101       -e 's/ppsfreq/Ppsfreq/' \
1102       -e 's/jitter/Jitter/' \
1103       -e 's/shift/Shift/' \
1104       -e 's/stabil/Stabil/' \
1105       -e 's/jitcnt/Jitcnt/' \
1106       -e 's/calcnt/Calcnt/' \
1107       -e 's/errcnt/Errcnt/' \
1108       -e 's/stbcnt/Stbcnt/' \
1109       -e 's/tai/Tai/' \
1110       -e 's/_timeval/Timeval/' \
1111     >> ${OUT}
1112 fi
1113
1114 # The rlimit struct.
1115 grep '^type _rlimit ' gen-sysinfo.go | \
1116     sed -e 's/_rlimit/Rlimit/' \
1117       -e 's/rlim_cur/Cur/' \
1118       -e 's/rlim_max/Max/' \
1119     >> ${OUT}
1120
1121 # The RLIMIT constants.
1122 grep '^const _RLIMIT_' gen-sysinfo.go |
1123     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1124 grep '^const _RLIM_' gen-sysinfo.go |
1125     sed -e 's/^\(const \)_\(RLIM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1126
1127 # The sysinfo struct.
1128 grep '^type _sysinfo ' gen-sysinfo.go | \
1129     sed -e 's/_sysinfo/Sysinfo_t/' \
1130       -e 's/uptime/Uptime/' \
1131       -e 's/loads/Loads/' \
1132       -e 's/totalram/Totalram/' \
1133       -e 's/freeram/Freeram/' \
1134       -e 's/sharedram/Sharedram/' \
1135       -e 's/bufferram/Bufferram/' \
1136       -e 's/totalswap/Totalswap/' \
1137       -e 's/freeswap/Freeswap/' \
1138       -e 's/procs/Procs/' \
1139       -e 's/totalhigh/Totalhigh/' \
1140       -e 's/freehigh/Freehigh/' \
1141       -e 's/mem_unit/Unit/' \
1142     >> ${OUT}
1143
1144 # The ustat struct.
1145 grep '^type _ustat ' gen-sysinfo.go | \
1146     sed -e 's/_ustat/Ustat_t/' \
1147       -e 's/f_tfree/Tfree/' \
1148       -e 's/f_tinode/Tinoe/' \
1149       -e 's/f_fname/Fname/' \
1150       -e 's/f_fpack/Fpack/' \
1151     >> ${OUT}
1152 # Force it to be defined, as on some older GNU/Linux systems the
1153 # header file fails when using with <linux/filter.h>.
1154 if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
1155   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
1156 fi
1157
1158 # The utimbuf struct.
1159 grep '^type _utimbuf ' gen-sysinfo.go | \
1160     sed -e 's/_utimbuf/Utimbuf/' \
1161       -e 's/actime/Actime/' \
1162       -e 's/modtime/Modtime/' \
1163     >> ${OUT}
1164
1165 # The LOCK flags for flock.
1166 grep '^const _LOCK_' gen-sysinfo.go |
1167     sed -e 's/^\(const \)_\(LOCK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1168
1169 # The PRIO constants.
1170 grep '^const _PRIO_' gen-sysinfo.go | \
1171   sed -e 's/^\(const \)_\(PRIO_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1172
1173 # The GNU/Linux LINUX_REBOOT flags.
1174 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
1175     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1176
1177 # The GNU/Linux sock_filter struct.
1178 grep '^type _sock_filter ' gen-sysinfo.go | \
1179     sed -e 's/_sock_filter/SockFilter/' \
1180       -e 's/code/Code/' \
1181       -e 's/jt/Jt/' \
1182       -e 's/jf/Jf/' \
1183       -e 's/k /K /' \
1184     >> ${OUT}
1185
1186 # The GNU/Linux sock_fprog struct.
1187 grep '^type _sock_fprog ' gen-sysinfo.go | \
1188     sed -e 's/_sock_fprog/SockFprog/' \
1189       -e 's/len/Len/' \
1190       -e 's/filter/Filter/' \
1191       -e 's/_sock_filter/SockFilter/' \
1192     >> ${OUT}
1193
1194 # The GNU/Linux filter flags.
1195 grep '^const _BPF_' gen-sysinfo.go | \
1196   sed -e 's/^\(const \)_\(BPF_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1197
1198 # The GNU/Linux nlattr struct.
1199 grep '^type _nlattr ' gen-sysinfo.go | \
1200     sed -e 's/_nlattr/NlAttr/' \
1201       -e 's/nla_len/Len/' \
1202       -e 's/nla_type/Type/' \
1203     >> ${OUT}
1204
1205 # The GNU/Linux nlmsgerr struct.
1206 grep '^type _nlmsgerr ' gen-sysinfo.go | \
1207     sed -e 's/_nlmsgerr/NlMsgerr/' \
1208       -e 's/error/Error/' \
1209       -e 's/msg/Msg/' \
1210       -e 's/_nlmsghdr/NlMsghdr/' \
1211     >> ${OUT}
1212
1213 # The GNU/Linux rtnexthop struct.
1214 grep '^type _rtnexthop ' gen-sysinfo.go | \
1215     sed -e 's/_rtnexthop/RtNexthop/' \
1216       -e 's/rtnh_len/Len/' \
1217       -e 's/rtnh_flags/Flags/' \
1218       -e 's/rtnh_hops/Hops/' \
1219       -e 's/rtnh_ifindex/Ifindex/' \
1220     >> ${OUT}
1221
1222 # The GNU/Linux netlink flags.
1223 grep '^const _NETLINK_' gen-sysinfo.go | \
1224   sed -e 's/^\(const \)_\(NETLINK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1225 grep '^const _NLA_' gen-sysinfo.go | grep -v '_val =' | \
1226   sed -e 's/^\(const \)_\(NLA_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1227
1228 if ! grep '^const NLA_HDRLEN' ${OUT} >/dev/null 2>&1; then
1229   if grep '^const _NLA_HDRLEN_val' ${OUT} >/dev/null 2>&1; then
1230     echo 'const NLA_HDRLEN = _NLA_HDRLEN_val' >> ${OUT}
1231   fi
1232 fi
1233
1234 # The GNU/Linux packet socket flags.
1235 grep '^const _PACKET_' gen-sysinfo.go | \
1236   sed -e 's/^\(const \)_\(PACKET_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1237
1238 # The GNU/Linux inotify_event struct.
1239 grep '^type _inotify_event ' gen-sysinfo.go | \
1240     sed -e 's/_inotify_event/InotifyEvent/' \
1241       -e 's/wd/Wd/' \
1242       -e 's/mask/Mask/' \
1243       -e 's/cookie/Cookie/' \
1244       -e 's/len/Len/' \
1245       -e 's/name/Name/' \
1246       -e 's/\[\]/[0]/' \
1247       -e 's/\[0\]byte/[0]int8/' \
1248     >> ${OUT}
1249
1250 # The GNU/Linux CLONE flags.
1251 grep '^const _CLONE_' gen-sysinfo.go | \
1252   sed -e 's/^\(const \)_\(CLONE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1253 # We need some CLONE constants that are not defined in older versions
1254 # of glibc.
1255 if ! grep '^const CLONE_NEWUSER ' ${OUT} > /dev/null 2>&1; then
1256   echo "const CLONE_NEWUSER = 0x10000000" >> ${OUT}
1257 fi
1258 if ! grep '^const CLONE_NEWNET ' ${OUT} > /dev/null 2>&1; then
1259   echo "const CLONE_NEWNET = 0x40000000" >> ${OUT}
1260 fi
1261
1262 # Struct sizes.
1263 set cmsghdr Cmsghdr ip_mreq IPMreq ip_mreqn IPMreqn ipv6_mreq IPv6Mreq \
1264     ifaddrmsg IfAddrmsg ifinfomsg IfInfomsg in_pktinfo Inet4Pktinfo \
1265     in6_pktinfo Inet6Pktinfo inotify_event InotifyEvent linger Linger \
1266     msghdr Msghdr nlattr NlAttr nlmsgerr NlMsgerr nlmsghdr NlMsghdr \
1267     rtattr RtAttr rtgenmsg RtGenmsg rtmsg RtMsg rtnexthop RtNexthop \
1268     sock_filter SockFilter sock_fprog SockFprog ucred Ucred \
1269     icmp6_filter ICMPv6Filter ip6_mtuinfo IPv6MTUInfo
1270 while test $# != 0; do
1271     nc=$1
1272     ngo=$2
1273     shift
1274     shift
1275     if grep "^const _sizeof_$nc =" gen-sysinfo.go >/dev/null 2>&1; then
1276         echo "const Sizeof$ngo = _sizeof_$nc" >> ${OUT}
1277     fi
1278 done
1279
1280 # In order to compile the net package, we need some sizes to exist
1281 # even if the types do not.
1282 if ! grep 'const SizeofIPMreq ' ${OUT} >/dev/null 2>&1; then
1283     echo 'const SizeofIPMreq = 8' >> ${OUT}
1284 fi
1285 if ! grep 'const SizeofIPv6Mreq ' ${OUT} >/dev/null 2>&1; then
1286     echo 'const SizeofIPv6Mreq = 20' >> ${OUT}
1287 fi
1288 if ! grep 'const SizeofIPMreqn ' ${OUT} >/dev/null 2>&1; then
1289     echo 'const SizeofIPMreqn = 12' >> ${OUT}
1290 fi
1291 if ! grep 'const SizeofICMPv6Filter ' ${OUT} >/dev/null 2>&1; then
1292     echo 'const SizeofICMPv6Filter = 32' >> ${OUT}
1293 fi
1294
1295 # The Solaris 11 Update 1 _zone_net_addr_t struct.
1296 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
1297     sed -e 's/_in6_addr/[16]byte/' \
1298     >> ${OUT}
1299
1300 # The Solaris 12 _flow_arp_desc_t struct.
1301 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
1302     sed -e 's/_in6_addr_t/[16]byte/g' \
1303     >> ${OUT}
1304
1305 # The Solaris 12 _flow_l3_desc_t struct.
1306 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
1307     sed -e 's/_in6_addr_t/[16]byte/g' \
1308     >> ${OUT}
1309
1310 # The Solaris 12 _mac_ipaddr_t struct.
1311 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
1312     sed -e 's/_in6_addr_t/[16]byte/g' \
1313     >> ${OUT}
1314
1315 # The Solaris 12 _mactun_info_t struct.
1316 grep '^type _mactun_info_t ' gen-sysinfo.go | \
1317     sed -e 's/_in6_addr_t/[16]byte/g' \
1318     >> ${OUT}
1319
1320 exit $?