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.
   8
   9 # This shell script creates the sysinfo.go file which holds types and
  10 # constants extracted from the system header files.  This relies on a
  11 # hook in gcc: the -fdump-go-spec option will generate debugging
  12 # information in Go syntax.
  13
  14 # We currently #include all the files at once, which works, but leads
  15 # to exposing some names which ideally should not be exposed, as they
  16 # match grep patterns.  E.g., WCHAR_MIN gets exposed because it starts
  17 # with W, like the wait flags.
  18
  19 CC=${CC:-gcc}
  20 OUT=tmp-sysinfo.go
  21
  22 set -e
  23
  24 rm -f sysinfo.c
  25 cat > sysinfo.c <<EOF
  26 #include "config.h"
  27
  28 #include <sys/types.h>
  29 #include <dirent.h>
  30 #include <errno.h>
  31 #include <fcntl.h>
  32 #include <netinet/in.h>
  33 /* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only
  34    included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE
  35    && !_XOPEN_SOURCE.
  36    <sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while
  37    <sys/ttold.h> does so unconditionally.  */
  38 #ifdef __sgi__
  39 #include <sys/bsd_types.h>
  40 #include <sys/ttold.h>
  41 #endif
  42 #include <netinet/tcp.h>
  43 #if defined(HAVE_NETINET_IN_SYSTM_H)
  44 #include <netinet/in_systm.h>
  45 #endif
  46 #if defined(HAVE_NETINET_IP_H)
  47 #include <netinet/ip.h>
  48 #endif
  49 #if defined(HAVE_NETINET_IP_MROUTE_H)
  50 #include <netinet/ip_mroute.h>
  51 #endif
  52 #if defined(HAVE_NETINET_IF_ETHER_H)
  53 #include <netinet/if_ether.h>
  54 #endif
  55 #include <signal.h>
  56 #include <sys/ioctl.h>
  57 #include <termios.h>
  58 #if defined(HAVE_SYSCALL_H)
  59 #include <syscall.h>
  60 #endif
  61 #if defined(HAVE_SYS_SYSCALL_H)
  62 #include <sys/syscall.h>
  63 #endif
  64 #if defined(HAVE_SYS_EPOLL_H)
  65 #include <sys/epoll.h>
  66 #endif
  67 #if defined(HAVE_SYS_FILE_H)
  68 #include <sys/file.h>
  69 #endif
  70 #if defined(HAVE_SYS_MMAN_H)
  71 #include <sys/mman.h>
  72 #endif
  73 #if defined(HAVE_SYS_PRCTL_H)
  74 #include <sys/prctl.h>
  75 #endif
  76 #if defined(HAVE_SYS_PTRACE_H)
  77 #include <sys/ptrace.h>
  78 #endif
  79 #include <sys/resource.h>
  80 #include <sys/uio.h>
  81 #include <sys/socket.h>
  82 #include <sys/stat.h>
  83 #include <sys/time.h>
  84 #include <sys/times.h>
  85 #include <sys/wait.h>
  86 #include <sys/un.h>
  87 #if defined(HAVE_SYS_USER_H)
  88 #include <sys/user.h>
  89 #endif
  90 #if defined(HAVE_SYS_UTSNAME_H)
  91 #include <sys/utsname.h>
  92 #endif
  93 #if defined(HAVE_SYS_SELECT_H)
  94 #include <sys/select.h>
  95 #endif
  96 #include <time.h>
  97 #include <unistd.h>
  98 #include <netdb.h>
  99 #include <pwd.h>
 100 #if defined(HAVE_LINUX_FILTER_H)
 101 #include <linux/filter.h>
 102 #endif
 103 #if defined(HAVE_LINUX_IF_ADDR_H)
 104 #include <linux/if_addr.h>
 105 #endif
 106 #if defined(HAVE_LINUX_IF_ETHER_H)
 107 #include <linux/if_ether.h>
 108 #endif
 109 #if defined(HAVE_LINUX_IF_TUN_H)
 110 #include <linux/if_tun.h>
 111 #endif
 112 #if defined(HAVE_LINUX_NETLINK_H)
 113 #include <linux/netlink.h>
 114 #endif
 115 #if defined(HAVE_LINUX_RTNETLINK_H)
 116 #include <linux/rtnetlink.h>
 117 #endif
 118 #if defined(HAVE_NET_IF_H)
 119 #include <net/if.h>
 120 #endif
 121 #if defined(HAVE_NET_IF_ARP_H)
 122 #include <net/if_arp.h>
 123 #endif
 124 #if defined(HAVE_NET_ROUTE_H)
 125 #include <net/route.h>
 126 #endif
 127 #if defined (HAVE_NETPACKET_PACKET_H)
 128 #include <netpacket/packet.h>
 129 #endif
 130 #if defined(HAVE_SYS_MOUNT_H)
 131 #include <sys/mount.h>
 132 #endif
 133 #if defined(HAVE_SYS_VFS_H)
 134 #include <sys/vfs.h>
 135 #endif
 136 #if defined(HAVE_STATFS_H)
 137 #include <sys/statfs.h>
 138 #endif
 139 #if defined(HAVE_SYS_TIMEX_H)
 140 #include <sys/timex.h>
 141 #endif
 142 #if defined(HAVE_SYS_SYSINFO_H)
 143 #include <sys/sysinfo.h>
 144 #endif
 145 #if defined(HAVE_USTAT_H)
 146 #include <ustat.h>
 147 #endif
 148 #if defined(HAVE_UTIME_H)
 149 #include <utime.h>
 150 #endif
 151 #if defined(HAVE_LINUX_ETHER_H)
 152 #include <linux/ether.h>
 153 #endif
 154 #if defined(HAVE_LINUX_FS_H)
 155 #include <linux/fs.h>
 156 #endif
 157 #if defined(HAVE_LINUX_REBOOT_H)
 158 #include <linux/reboot.h>
 159 #endif
 160 #if defined(HAVE_SYS_INOTIFY_H)
 161 #include <sys/inotify.h>
 162 #endif
 163 #if defined(HAVE_NETINET_ICMP6_H)
 164 #include <netinet/icmp6.h>
 165 #endif
 166 #if defined(HAVE_SCHED_H)
 167 #include <sched.h>
 168 #endif
 169
 170 /* Constants that may only be defined as expressions on some systems,
 171    expressions too complex for -fdump-go-spec to handle.  These are
 172    handled specially below.  */
 173 enum {
 174 #ifdef TIOCGWINSZ
 175   TIOCGWINSZ_val = TIOCGWINSZ,
 176 #endif
 177 #ifdef TIOCSWINSZ
 178   TIOCSWINSZ_val = TIOCSWINSZ,
 179 #endif
 180 #ifdef TIOCNOTTY
 181   TIOCNOTTY_val = TIOCNOTTY,
 182 #endif
 183 #ifdef TIOCSCTTY
 184   TIOCSCTTY_val = TIOCSCTTY,
 185 #endif
 186 #ifdef TIOCGPGRP
 187   TIOCGPGRP_val = TIOCGPGRP,
 188 #endif
 189 #ifdef TIOCSPGRP
 190   TIOCSPGRP_val = TIOCSPGRP,
 191 #endif
 192 #ifdef TIOCGPTN
 193   TIOCGPTN_val = TIOCGPTN,
 194 #endif
 195 #ifdef TIOCSPTLCK
 196   TIOCSPTLCK_val = TIOCSPTLCK,
 197 #endif
 198 #ifdef TIOCGDEV
 199   TIOCGDEV_val = TIOCGDEV,
 200 #endif
 201 #ifdef TIOCSIG
 202   TIOCSIG_val = TIOCSIG,
 203 #endif
 204 #ifdef TCGETS
 205   TCGETS_val = TCGETS,
 206 #endif
 207 #ifdef TCSETS
 208   TCSETS_val = TCSETS,
 209 #endif
 210 #ifdef TUNSETIFF
 211   TUNSETIFF_val = TUNSETIFF,
 212 #endif
 213 #ifdef TUNSETNOCSUM
 214   TUNSETNOCSUM_val = TUNSETNOCSUM,
 215 #endif
 216 #ifdef TUNSETDEBUG
 217   TUNSETDEBUG_val = TUNSETDEBUG,
 218 #endif
 219 #ifdef TUNSETPERSIST
 220   TUNSETPERSIST_val = TUNSETPERSIST,
 221 #endif
 222 #ifdef TUNSETOWNER
 223   TUNSETOWNER_val = TUNSETOWNER,
 224 #endif
 225 #ifdef TUNSETLINK
 226   TUNSETLINK_val = TUNSETLINK,
 227 #endif
 228 #ifdef TUNSETGROUP
 229   TUNSETGROUP_val = TUNSETGROUP,
 230 #endif
 231 #ifdef TUNGETFEATURES
 232   TUNGETFEATURES_val = TUNGETFEATURES,
 233 #endif
 234 #ifdef TUNSETOFFLOAD
 235   TUNSETOFFLOAD_val = TUNSETOFFLOAD,
 236 #endif
 237 #ifdef TUNSETTXFILTER
 238   TUNSETTXFILTER_val = TUNSETTXFILTER,
 239 #endif
 240 #ifdef TUNGETIFF
 241   TUNGETIFF_val = TUNGETIFF,
 242 #endif
 243 #ifdef TUNGETSNDBUF
 244   TUNGETSNDBUF_val = TUNGETSNDBUF,
 245 #endif
 246 #ifdef TUNSETSNDBUF
 247   TUNSETSNDBUF_val = TUNSETSNDBUF,
 248 #endif
 249 #ifdef TUNATTACHFILTER
 250   TUNATTACHFILTER_val = TUNATTACHFILTER,
 251 #endif
 252 #ifdef TUNDETACHFILTER
 253   TUNDETACHFILTER_val = TUNDETACHFILTER,
 254 #endif
 255 #ifdef TUNGETVNETHDRSZ
 256   TUNGETVNETHDRSZ_val = TUNGETVNETHDRSZ,
 257 #endif
 258 #ifdef TUNSETVNETHDRSZ
 259   TUNSETVNETHDRSZ_val = TUNSETVNETHDRSZ,
 260 #endif
 261 #ifdef TUNSETQUEUE
 262   TUNSETQUEUE_val = TUNSETQUEUE,
 263 #endif
 264 #ifdef TUNSETIFINDEX
 265   TUNSETIFINDEX_val = TUNSETIFINDEX,
 266 #endif
 267 #ifdef TUNGETFILTER
 268   TUNGETFILTER_val = TUNGETFILTER,
 269 #endif
 270 #ifdef NLA_HDRLEN
 271   NLA_HDRLEN_val = NLA_HDRLEN,
 272 #endif
 273
 274 };
 275 EOF
 276
 277 ${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c
 278
 279 echo 'package syscall' > ${OUT}
 280 echo 'import "unsafe"' >> ${OUT}
 281 echo 'type _ unsafe.Pointer' >> ${OUT}
 282
 283 # Get all the consts and types, skipping ones which could not be
 284 # represented in Go and ones which we need to rewrite.  We also skip
 285 # function declarations, as we don't need them here.  All the symbols
 286 # will all have a leading underscore.
 287 grep -v '^// ' gen-sysinfo.go | \
 288   grep -v '^func' | \
 289   grep -v '^type _timeval ' | \
 290   grep -v '^type _timespec_t ' | \
 291   grep -v '^type _timespec ' | \
 292   grep -v '^type _timestruc_t ' | \
 293   grep -v '^type _epoll_' | \
 294   grep -v 'in6_addr' | \
 295   grep -v 'sockaddr_in6' | \
 296   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 297       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 298       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 299       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 300     >> ${OUT}
 301
 302 # The errno constants.  These get type Errno.
 303 echo '#include <errno.h>' | ${CC} -x c - -E -dM | \
 304   egrep '#define E[A-Z0-9_]+ ' | \
 305   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
 306
 307 # The O_xxx flags.
 308 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
 309   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 310 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
 311   echo "const O_ASYNC = 0" >> ${OUT}
 312 fi
 313 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 314   echo "const O_CLOEXEC = 0" >> ${OUT}
 315 fi
 316
 317 # The os package requires F_DUPFD_CLOEXEC to be defined.
 318 if ! grep '^const F_DUPFD_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 319   echo "const F_DUPFD_CLOEXEC = 0" >> ${OUT}
 320 fi
 321
 322 # These flags can be lost on i386 GNU/Linux when using
 323 # -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
 324 # before we see the definition of F_SETLK64.
 325 for flag in F_GETLK F_SETLK F_SETLKW; do
 326   if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
 327       && grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
 328     echo "const ${flag} = ${flag}64" >> ${OUT}
 329   fi
 330 done
 331
 332 # The Flock_t struct for fcntl.
 333 grep '^type _flock ' gen-sysinfo.go | \
 334     sed -e 's/type _flock/type Flock_t/' \
 335       -e 's/l_type/Type/' \
 336       -e 's/l_whence/Whence/' \
 337       -e 's/l_start/Start/' \
 338       -e 's/l_len/Len/' \
 339       -e 's/l_pid/Pid/' \
 340     >> ${OUT}
 341
 342 # The signal numbers.
 343 grep '^const _SIG[^_]' gen-sysinfo.go | \
 344   grep -v '^const _SIGEV_' | \
 345   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 346 if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
 347   if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
 348     echo "const SIGPOLL = SIGIO" >> ${OUT}
 349   fi
 350 fi
 351 if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
 352   if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
 353     echo "const SIGCLD = SIGCHLD" >> ${OUT}
 354   fi
 355 fi
 356
 357 # The syscall numbers.  We force the names to upper case.
 358 grep '^const _SYS_' gen-sysinfo.go | \
 359   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 360   while read sys; do
 361     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 362     echo "const $sup = _$sys" >> ${OUT}
 363   done
 364
 365 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 366 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
 367   echo "const SYS_GETDENTS = 0" >> ${OUT}
 368 fi
 369 if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
 370   echo "const SYS_GETDENTS64 = 0" >> ${OUT}
 371 fi
 372
 373 # Stat constants.
 374 grep '^const _S_' gen-sysinfo.go | \
 375   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 376
 377 # Mmap constants.
 378 grep '^const _PROT_' gen-sysinfo.go | \
 379   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 380 grep '^const _MAP_' gen-sysinfo.go | \
 381   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 382 grep '^const _MADV_' gen-sysinfo.go | \
 383   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 384 grep '^const _MCL_' gen-sysinfo.go | \
 385   sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 386
 387 # Process status constants.
 388 grep '^const _W' gen-sysinfo.go |
 389   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 390 # WSTOPPED was introduced in glibc 2.3.4.
 391 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 392   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 393     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 394   else
 395     echo 'const WSTOPPED = 2' >> ${OUT}
 396   fi
 397 fi
 398 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 399    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 400   echo 'const WALL = ___WALL' >> ${OUT}
 401 fi
 402
 403 # Networking constants.
 404 egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 405   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 406 grep '^const _SOMAXCONN' gen-sysinfo.go |
 407   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 408     >> ${OUT}
 409 grep '^const _SHUT_' gen-sysinfo.go |
 410   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 411
 412 # The net package requires some const definitions.
 413 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
 414   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 415     echo "const $m = 0" >> ${OUT}
 416   fi
 417 done
 418 for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
 419   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 420     echo "const $m = -1" >> ${OUT}
 421   fi
 422 done
 423
 424 # The syscall package requires AF_LOCAL.
 425 if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
 426   if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
 427     echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
 428   fi
 429 fi
 430
 431 # pathconf constants.
 432 grep '^const __PC' gen-sysinfo.go |
 433   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 434
 435 # The PATH_MAX constant.
 436 if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
 437   echo 'const PathMax = _PATH_MAX' >> ${OUT}
 438 fi
 439
 440 # epoll constants.
 441 grep '^const _EPOLL' gen-sysinfo.go |
 442   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 443 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 444 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 445   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 446 fi
 447 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 448   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 449 fi
 450
 451 # Prctl constants.
 452 grep '^const _PR_' gen-sysinfo.go |
 453   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 454
 455 # Ptrace constants.
 456 grep '^const _PTRACE' gen-sysinfo.go |
 457   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 458 # We need some ptrace options that are not defined in older versions
 459 # of glibc.
 460 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 461   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 462 fi
 463 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 464   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 465 fi
 466 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 467   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 468 fi
 469 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 470   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 471 fi
 472 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 473   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 474 fi
 475 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 476   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 477 fi
 478 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 479   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 480 fi
 481 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 482   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 483 fi
 484 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 485   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 486 fi
 487 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 488   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 489 fi
 490 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 491   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 492 fi
 493 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 494   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 495 fi
 496 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 497   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 498 fi
 499 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 500   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 501 fi
 502 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 503   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 504 fi
 505 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 506   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 507 fi
 508 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 509   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 510 fi
 511
 512 # A helper function that prints a structure from gen-sysinfo.go with the first
 513 # letter of the field names in upper case.  $1 is the name of structure.  If $2
 514 # is not empty, the structure or type is renamed to $2.
 515 upcase_fields () {
 516   name="$1"
 517   def=`grep "^type $name" gen-sysinfo.go`
 518   fields=`echo $def | sed -e 's/^[^{]*{\(.*\)}$/\1/'`
 519   prefix=`echo $def | sed -e 's/{.*//'`
 520   if test "$2" != ""; then
 521     prefix=`echo $prefix | sed -e "s/$1/$2/"`
 522   fi
 523   if test "$fields" != ""; then
 524     nfields=
 525     while test -n "$fields"; do
 526       field=`echo $fields | sed -e 's/^\([^;]*\);.*$/\1/'`
 527       fields=`echo $fields | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 528       # capitalize the next character.
 529       f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 530       r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 531       f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 532       field="$f$r"
 533       nfields="$nfields $field;"
 534     done
 535     echo "${prefix} {$nfields }"
 536   fi
 537 }
 538
 539 # The registers returned by PTRACE_GETREGS.  This is probably
 540 # GNU/Linux specific; it should do no harm if there is no
 541 # _user_regs_struct.
 542 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 543 if test "$regs" = ""; then
 544   # s390
 545   regs=`grep '^type __user_regs_struct struct' gen-sysinfo.go || true`
 546   if test "$regs" != ""; then
 547     # Substructures of __user_regs_struct on s390
 548     upcase_fields "__user_psw_struct" "PtracePsw" >> ${OUT} || true
 549     upcase_fields "__user_fpregs_struct" "PtraceFpregs" >> ${OUT} || true
 550     upcase_fields "__user_per_struct" "PtracePer" >> ${OUT} || true
 551   fi
 552 fi
 553 if test "$regs" != ""; then
 554   regs=`echo $regs |
 555     sed -e 's/type __*user_regs_struct struct //' -e 's/[{}]//g'`
 556   regs=`echo $regs | sed -e s'/^ *//'`
 557   nregs=
 558   while test -n "$regs"; do
 559     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 560     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 561     # Capitalize the first character of the field.
 562     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 563     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 564     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 565     field="$f$r"
 566     field=`echo "$field" | sed \
 567       -e 's/__user_psw_struct/PtracePsw/' \
 568       -e 's/__user_fpregs_struct/PtraceFpregs/' \
 569       -e 's/__user_per_struct/PtracePer/'`
 570     nregs="$nregs $field;"
 571   done
 572   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 573 fi
 574
 575 # Some basic types.
 576 echo 'type Size_t _size_t' >> ${OUT}
 577 echo "type Ssize_t _ssize_t" >> ${OUT}
 578 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 579   echo "type Offset_t _off64_t" >> ${OUT}
 580 else
 581   echo "type Offset_t _off_t" >> ${OUT}
 582 fi
 583 echo "type Mode_t _mode_t" >> ${OUT}
 584 echo "type Pid_t _pid_t" >> ${OUT}
 585 echo "type Uid_t _uid_t" >> ${OUT}
 586 echo "type Gid_t _gid_t" >> ${OUT}
 587 echo "type Socklen_t _socklen_t" >> ${OUT}
 588
 589 # The C int type.
 590 sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 591 if test "$sizeof_int" = "4"; then
 592   echo "type _C_int int32" >> ${OUT}
 593   echo "type _C_uint uint32" >> ${OUT}
 594 elif test "$sizeof_int" = "8"; then
 595   echo "type _C_int int64" >> ${OUT}
 596   echo "type _C_uint uint64" >> ${OUT}
 597 else
 598   echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
 599   exit 1
 600 fi
 601
 602 # The C long type, needed because that is the type that ptrace returns.
 603 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 604 if test "$sizeof_long" = "4"; then
 605   echo "type _C_long int32" >> ${OUT}
 606 elif test "$sizeof_long" = "8"; then
 607   echo "type _C_long int64" >> ${OUT}
 608 else
 609   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 610   exit 1
 611 fi
 612
 613 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 614 # double is commented by -fdump-go-spec.
 615 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 616   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 617 fi
 618 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 619   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 620 fi
 621
 622 # The time_t type.
 623 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 624   echo 'type Time_t _time_t' >> ${OUT}
 625 fi
 626
 627 # The time structures need special handling: we need to name the
 628 # types, so that we can cast integers to the right types when
 629 # assigning to the structures.
 630 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 631 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 632 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 633 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 634 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 635 echo $timeval | \
 636   sed -e 's/type _timeval /type Timeval /' \
 637       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 638       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 639 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 640 if test "$timespec" = ""; then
 641   # IRIX 6.5 has __timespec instead.
 642   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 643 fi
 644 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 645 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 646 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 647 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 648 echo $timespec | \
 649   sed -e 's/^type ___timespec /type Timespec /' \
 650       -e 's/^type _timespec /type Timespec /' \
 651       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 652       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 653
 654 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 655 if test "$timestruc" != ""; then
 656   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 657   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 658   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 659   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 660   echo $timestruc | \
 661     sed -e 's/^type _timestruc_t /type Timestruc /' \
 662         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 663         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 664 fi
 665
 666 # The tms struct.
 667 grep '^type _tms ' gen-sysinfo.go | \
 668     sed -e 's/type _tms/type Tms/' \
 669       -e 's/tms_utime/Utime/' \
 670       -e 's/tms_stime/Stime/' \
 671       -e 's/tms_cutime/Cutime/' \
 672       -e 's/tms_cstime/Cstime/' \
 673     >> ${OUT}
 674
 675 # The stat type.
 676 # Prefer largefile variant if available.
 677 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 678 if test "$stat" != ""; then
 679   grep '^type _stat64 ' gen-sysinfo.go
 680 else
 681   grep '^type _stat ' gen-sysinfo.go
 682 fi | sed -e 's/type _stat64/type Stat_t/' \
 683          -e 's/type _stat/type Stat_t/' \
 684          -e 's/st_dev/Dev/' \
 685          -e 's/st_ino/Ino/g' \
 686          -e 's/st_nlink/Nlink/' \
 687          -e 's/st_mode/Mode/' \
 688          -e 's/st_uid/Uid/' \
 689          -e 's/st_gid/Gid/' \
 690          -e 's/st_rdev/Rdev/' \
 691          -e 's/st_size/Size/' \
 692          -e 's/st_blksize/Blksize/' \
 693          -e 's/st_blocks/Blocks/' \
 694          -e 's/st_atim/Atim/' \
 695          -e 's/st_mtim/Mtim/' \
 696          -e 's/st_ctim/Ctim/' \
 697          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 698          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 699          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 700          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 701          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 702        >> ${OUT}
 703
 704 # The directory searching types.
 705 # Prefer largefile variant if available.
 706 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 707 if test "$dirent" != ""; then
 708   grep '^type _dirent64 ' gen-sysinfo.go
 709 else
 710   grep '^type _dirent ' gen-sysinfo.go
 711 fi | sed -e 's/type _dirent64/type Dirent/' \
 712          -e 's/type _dirent/type Dirent/' \
 713          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 714          -e 's/d_name/Name/' \
 715          -e 's/]int8/]byte/' \
 716          -e 's/d_ino/Ino/' \
 717          -e 's/d_off/Off/' \
 718          -e 's/d_reclen/Reclen/' \
 719          -e 's/d_type/Type/' \
 720       >> ${OUT}
 721 echo "type DIR _DIR" >> ${OUT}
 722
 723 # Values for d_type field in dirent.
 724 grep '^const _DT_' gen-sysinfo.go |
 725   sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 726
 727 # The rusage struct.
 728 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 729 if test "$rusage" != ""; then
 730   # Remove anonymous unions from GNU/Linux <bits/resource.h>.
 731   rusage=`echo $rusage | sed -e 's/Godump_[0-9][0-9]* struct {\([^}]*\)};/\1/g'`
 732   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 733   rusage=`echo $rusage | sed -e 's/^ *//'`
 734   nrusage=
 735   while test -n "$rusage"; do
 736     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 737     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 738     # Drop the leading ru_, capitalize the next character.
 739     field=`echo $field | sed -e 's/^ru_//'`
 740     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 741     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 742     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 743     # Fix _timeval _timespec, and _timestruc_t.
 744     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 745     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 746     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 747     field="$f$r"
 748     nrusage="$nrusage $field;"
 749   done
 750   echo "type Rusage struct {$nrusage }" >> ${OUT}
 751 else
 752   echo "type Rusage struct {}" >> ${OUT}
 753 fi
 754
 755 # The RUSAGE constants.
 756 grep '^const _RUSAGE_' gen-sysinfo.go | \
 757   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 758
 759 # The utsname struct.
 760 grep '^type _utsname ' gen-sysinfo.go | \
 761     sed -e 's/_utsname/Utsname/' \
 762       -e 's/sysname/Sysname/' \
 763       -e 's/nodename/Nodename/' \
 764       -e 's/release/Release/' \
 765       -e 's/version/Version/' \
 766       -e 's/machine/Machine/' \
 767       -e 's/domainname/Domainname/' \
 768     >> ${OUT}
 769
 770 # The iovec struct.
 771 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 772 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 773 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 774 echo $iovec | \
 775     sed -e 's/_iovec/Iovec/' \
 776       -e 's/iov_base/Base/' \
 777       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 778     >> ${OUT}
 779
 780 # The msghdr struct.
 781 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 782 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 783 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 784 echo $msghdr | \
 785     sed -e 's/_msghdr/Msghdr/' \
 786       -e 's/msg_name/Name/' \
 787       -e 's/msg_namelen/Namelen/' \
 788       -e 's/msg_iov/Iov/' \
 789       -e 's/msg_iovlen/Iovlen/' \
 790       -e 's/_iovec/Iovec/' \
 791       -e 's/msg_control/Control/' \
 792       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 793       -e 's/msg_flags/Flags/' \
 794     >> ${OUT}
 795
 796 # The MSG_ flags for Msghdr.
 797 grep '^const _MSG_' gen-sysinfo.go | \
 798   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 799
 800 # The cmsghdr struct.
 801 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 802 if test -n "$cmsghdr"; then
 803   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 804   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 805   echo "$cmsghdr" | \
 806       sed -e 's/_cmsghdr/Cmsghdr/' \
 807         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 808         -e 's/cmsg_level/Level/' \
 809         -e 's/cmsg_type/Type/' \
 810         -e 's/\[\]/[0]/' \
 811       >> ${OUT}
 812 fi
 813
 814 # The SCM_ flags for Cmsghdr.
 815 grep '^const _SCM_' gen-sysinfo.go | \
 816   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 817
 818 # The ucred struct.
 819 upcase_fields "_ucred" "Ucred" >> ${OUT} || true
 820
 821 # The ip_mreq struct.
 822 grep '^type _ip_mreq ' gen-sysinfo.go | \
 823     sed -e 's/_ip_mreq/IPMreq/' \
 824       -e 's/imr_multiaddr/Multiaddr/' \
 825       -e 's/imr_interface/Interface/' \
 826       -e 's/_in_addr/[4]byte/g' \
 827     >> ${OUT}
 828
 829 # We need IPMreq to compile the net package.
 830 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 831   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 832 fi
 833
 834 # The ipv6_mreq struct.
 835 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 836     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 837       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 838       -e 's/ipv6mr_interface/Interface/' \
 839       -e 's/_in6_addr/[16]byte/' \
 840     >> ${OUT}
 841
 842 # We need IPv6Mreq to compile the net package.
 843 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 844   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 845 fi
 846
 847 # The ip_mreqn struct.
 848 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 849     sed -e 's/_ip_mreqn/IPMreqn/' \
 850       -e 's/imr_multiaddr/Multiaddr/' \
 851       -e 's/imr_address/Address/' \
 852       -e 's/imr_ifindex/Ifindex/' \
 853       -e 's/_in_addr/[4]byte/g' \
 854     >> ${OUT}
 855
 856 # We need IPMreq to compile the net package.
 857 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 858   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 859 fi
 860
 861 # The icmp6_filter struct.
 862 grep '^type _icmp6_filter ' gen-sysinfo.go | \
 863     sed -e 's/_icmp6_filter/ICMPv6Filter/' \
 864       -e 's/data/Data/' \
 865       -e 's/filt/Filt/' \
 866     >> ${OUT}
 867
 868 # We need ICMPv6Filter to compile the syscall package.
 869 if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
 870   echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
 871 fi
 872
 873 # Try to guess the type to use for fd_set.
 874 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 875 fds_bits_type="_C_long"
 876 if test "$fd_set" != ""; then
 877     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 878 fi
 879 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 880
 881 # The addrinfo struct.
 882 grep '^type _addrinfo ' gen-sysinfo.go | \
 883     sed -e 's/_addrinfo/Addrinfo/g' \
 884       -e 's/ ai_/ Ai_/g' \
 885     >> ${OUT}
 886
 887 # The addrinfo and nameinfo flags and errors.
 888 grep '^const _AI_' gen-sysinfo.go | \
 889   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 890 grep '^const _EAI_' gen-sysinfo.go | \
 891   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 892 grep '^const _NI_' gen-sysinfo.go | \
 893   sed -e 's/^\(const \)_\(NI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 894
 895 # The passwd struct.
 896 grep '^type _passwd ' gen-sysinfo.go | \
 897     sed -e 's/_passwd/Passwd/' \
 898       -e 's/ pw_/ Pw_/g' \
 899     >> ${OUT}
 900
 901 # The ioctl flags for the controlling TTY.
 902 grep '^const _TIOC' gen-sysinfo.go | \
 903     grep -v '_val =' | \
 904     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 905 grep '^const _TUNSET' gen-sysinfo.go | \
 906     grep -v '_val =' | \
 907     sed -e 's/^\(const \)_\(TUNSET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 908 # We need TIOCGWINSZ.
 909 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 910   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 911     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 912   fi
 913 fi
 914 if ! grep '^const TIOCSWINSZ' ${OUT} >/dev/null 2>&1; then
 915   if grep '^const _TIOCSWINSZ_val' ${OUT} >/dev/null 2>&1; then
 916     echo 'const TIOCSWINSZ = _TIOCSWINSZ_val' >> ${OUT}
 917   fi
 918 fi
 919 if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
 920   if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
 921     echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
 922   fi
 923 fi
 924 if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
 925   if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
 926     echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
 927   fi
 928 fi
 929 if ! grep '^const TIOCGPGRP' ${OUT} >/dev/null 2>&1; then
 930   if grep '^const _TIOCGPGRP_val' ${OUT} >/dev/null 2>&1; then
 931     echo 'const TIOCGPGRP = _TIOCGPGRP_val' >> ${OUT}
 932   fi
 933 fi
 934 if ! grep '^const TIOCSPGRP' ${OUT} >/dev/null 2>&1; then
 935   if grep '^const _TIOCSPGRP_val' ${OUT} >/dev/null 2>&1; then
 936     echo 'const TIOCSPGRP = _TIOCSPGRP_val' >> ${OUT}
 937   fi
 938 fi
 939 if ! grep '^const TIOCGPTN' ${OUT} >/dev/null 2>&1; then
 940   if grep '^const _TIOCGPTN_val' ${OUT} >/dev/null 2>&1; then
 941     echo 'const TIOCGPTN = _TIOCGPTN_val' >> ${OUT}
 942   fi
 943 fi
 944 if ! grep '^const TIOCSPTLCK' ${OUT} >/dev/null 2>&1; then
 945   if grep '^const _TIOCSPTLCK_val' ${OUT} >/dev/null 2>&1; then
 946     echo 'const TIOCSPTLCK = _TIOCSPTLCK_val' >> ${OUT}
 947   fi
 948 fi
 949 if ! grep '^const TIOCGDEV' ${OUT} >/dev/null 2>&1; then
 950   if grep '^const _TIOCGDEV_val' ${OUT} >/dev/null 2>&1; then
 951     echo 'const TIOCGDEV = _TIOCGDEV_val' >> ${OUT}
 952   fi
 953 fi
 954 if ! grep '^const TIOCSIG' ${OUT} >/dev/null 2>&1; then
 955   if grep '^const _TIOCSIG_val' ${OUT} >/dev/null 2>&1; then
 956     echo 'const TIOCSIG = _TIOCSIG_val' >> ${OUT}
 957   fi
 958 fi
 959
 960 if ! grep '^const TUNSETNOCSUM' ${OUT} >/dev/null 2>&1; then
 961   if grep '^const _TUNSETNOCSUM_val' ${OUT} >/dev/null 2>&1; then
 962     echo 'const TUNSETNOCSUM = _TUNSETNOCSUM_val' >> ${OUT}
 963   fi
 964 fi
 965
 966 if ! grep '^const TUNSETDEBUG' ${OUT} >/dev/null 2>&1; then
 967   if grep '^const _TUNSETDEBUG_val' ${OUT} >/dev/null 2>&1; then
 968     echo 'const TUNSETDEBUG = _TUNSETDEBUG_val' >> ${OUT}
 969   fi
 970 fi
 971
 972 if ! grep '^const TUNSETIFF' ${OUT} >/dev/null 2>&1; then
 973   if grep '^const _TUNSETIFF_val' ${OUT} >/dev/null 2>&1; then
 974     echo 'const TUNSETIFF = _TUNSETIFF_val' >> ${OUT}
 975   fi
 976 fi
 977
 978 if ! grep '^const TUNSETPERSIST' ${OUT} >/dev/null 2>&1; then
 979   if grep '^const _TUNSETPERSIST_val' ${OUT} >/dev/null 2>&1; then
 980     echo 'const TUNSETPERSIST = _TUNSETPERSIST_val' >> ${OUT}
 981   fi
 982 fi
 983
 984 if ! grep '^const TUNSETOWNER' ${OUT} >/dev/null 2>&1; then
 985   if grep '^const _TUNSETOWNER_val' ${OUT} >/dev/null 2>&1; then
 986     echo 'const TUNSETOWNER = _TUNSETOWNER_val' >> ${OUT}
 987   fi
 988 fi
 989
 990 if ! grep '^const TUNSETLINK' ${OUT} >/dev/null 2>&1; then
 991   if grep '^const _TUNSETLINK_val' ${OUT} >/dev/null 2>&1; then
 992     echo 'const TUNSETLINK = _TUNSETLINK_val' >> ${OUT}
 993   fi
 994 fi
 995
 996 if ! grep '^const TUNSETGROUP' ${OUT} >/dev/null 2>&1; then
 997   if grep '^const _TUNSETGROUP_val' ${OUT} >/dev/null 2>&1; then
 998     echo 'const TUNSETGROUP = _TUNSETGROUP_val' >> ${OUT}
 999   fi
1000 fi
1001
1002 if ! grep '^const TUNGETFEATURES' ${OUT} >/dev/null 2>&1; then
1003   if grep '^const _TUNGETFEATURES_val' ${OUT} >/dev/null 2>&1; then
1004     echo 'const TUNGETFEATURES = _TUNGETFEATURES_val' >> ${OUT}
1005   fi
1006 fi
1007
1008 if ! grep '^const TUNSETOFFLOAD' ${OUT} >/dev/null 2>&1; then
1009   if grep '^const _TUNSETOFFLOAD_val' ${OUT} >/dev/null 2>&1; then
1010     echo 'const TUNSETOFFLOAD = _TUNSETOFFLOAD_val' >> ${OUT}
1011   fi
1012 fi
1013
1014 if ! grep '^const TUNSETTXFILTER' ${OUT} >/dev/null 2>&1; then
1015   if grep '^const _TUNSETTXFILTER_val' ${OUT} >/dev/null 2>&1; then
1016     echo 'const TUNSETTXFILTER = _TUNSETTXFILTER_val' >> ${OUT}
1017   fi
1018 fi
1019
1020 if ! grep '^const TUNGETIFF' ${OUT} >/dev/null 2>&1; then
1021   if grep '^const _TUNGETIFF_val' ${OUT} >/dev/null 2>&1; then
1022     echo 'const TUNGETIFF = _TUNGETIFF_val' >> ${OUT}
1023   fi
1024 fi
1025
1026 if ! grep '^const TUNGETSNDBUF' ${OUT} >/dev/null 2>&1; then
1027   if grep '^const _TUNGETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
1028     echo 'const TUNGETSNDBUF = _TUNGETSNDBUF_val' >> ${OUT}
1029   fi
1030 fi
1031
1032 if ! grep '^const TUNSETSNDBUF' ${OUT} >/dev/null 2>&1; then
1033   if grep '^const _TUNSETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
1034     echo 'const TUNSETSNDBUF = _TUNSETSNDBUF_val' >> ${OUT}
1035   fi
1036 fi
1037
1038 if ! grep '^const TUNATTACHFILTER' ${OUT} >/dev/null 2>&1; then
1039   if grep '^const _TUNATTACHFILTER_val' ${OUT} >/dev/null 2>&1; then
1040     echo 'const TUNATTACHFILTER = _TUNATTACHFILTER_val' >> ${OUT}
1041   fi
1042 fi
1043
1044 if ! grep '^const TUNDETACHFILTER' ${OUT} >/dev/null 2>&1; then
1045   if grep '^const _TUNDETACHFILTER_val' ${OUT} >/dev/null 2>&1; then
1046     echo 'const TUNDETACHFILTER = _TUNDETACHFILTER_val' >> ${OUT}
1047   fi
1048 fi
1049
1050 if ! grep '^const TUNGETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
1051   if grep '^const _TUNGETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
1052     echo 'const TUNGETVNETHDRSZ = _TUNGETVNETHDRSZ_val' >> ${OUT}
1053   fi
1054 fi
1055
1056 if ! grep '^const TUNSETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
1057   if grep '^const _TUNSETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
1058     echo 'const TUNSETVNETHDRSZ = _TUNSETVNETHDRSZ_val' >> ${OUT}
1059   fi
1060 fi
1061
1062 if ! grep '^const TUNSETQUEUE' ${OUT} >/dev/null 2>&1; then
1063   if grep '^const _TUNSETQUEUE_val' ${OUT} >/dev/null 2>&1; then
1064     echo 'const TUNSETQUEUE = _TUNSETQUEUE_val' >> ${OUT}
1065   fi
1066 fi
1067
1068
1069 if ! grep '^const TUNSETIFINDEX' ${OUT} >/dev/null 2>&1; then
1070   if grep '^const _TUNSETIFINDEX_val' ${OUT} >/dev/null 2>&1; then
1071     echo 'const TUNSETIFINDEX = _TUNSETIFINDEX_val' >> ${OUT}
1072   fi
1073 fi
1074
1075 if ! grep '^const TUNGETFILTER' ${OUT} >/dev/null 2>&1; then
1076   if grep '^const _TUNGETFILTER_val' ${OUT} >/dev/null 2>&1; then
1077     echo 'const TUNGETFILTER = _TUNGETFILTER_val' >> ${OUT}
1078   fi
1079 fi
1080
1081 # The ioctl flags for terminal control
1082 grep '^const _TC[GS]ET' gen-sysinfo.go | grep -v _val | \
1083     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1084 if ! grep '^const TCGETS' ${OUT} >/dev/null 2>&1; then
1085   if grep '^const _TCGETS_val' ${OUT} >/dev/null 2>&1; then
1086     echo 'const TCGETS = _TCGETS_val' >> ${OUT}
1087   fi
1088 fi
1089 if ! grep '^const TCSETS' ${OUT} >/dev/null 2>&1; then
1090   if grep '^const _TCSETS_val' ${OUT} >/dev/null 2>&1; then
1091     echo 'const TCSETS = _TCSETS_val' >> ${OUT}
1092   fi
1093 fi
1094
1095 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
1096 # needs handling in syscalls.exec.go.
1097 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
1098   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
1099     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
1100   fi
1101 fi
1102
1103 # The nlmsghdr struct.
1104 grep '^type _nlmsghdr ' gen-sysinfo.go | \
1105     sed -e 's/_nlmsghdr/NlMsghdr/' \
1106       -e 's/nlmsg_len/Len/' \
1107       -e 's/nlmsg_type/Type/' \
1108       -e 's/nlmsg_flags/Flags/' \
1109       -e 's/nlmsg_seq/Seq/' \
1110       -e 's/nlmsg_pid/Pid/' \
1111     >> ${OUT}
1112
1113 # The nlmsg flags and operators.
1114 grep '^const _NLM' gen-sysinfo.go | \
1115     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1116
1117 # NLMSG_HDRLEN is defined as an expression using sizeof.
1118 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
1119   if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
1120     echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
1121   fi
1122 fi
1123
1124 # The rtmsg struct.
1125 grep '^type _rtmsg ' gen-sysinfo.go | \
1126     sed -e 's/_rtmsg/RtMsg/' \
1127       -e 's/rtm_family/Family/' \
1128       -e 's/rtm_dst_len/Dst_len/' \
1129       -e 's/rtm_src_len/Src_len/' \
1130       -e 's/rtm_tos/Tos/' \
1131       -e 's/rtm_table/Table/' \
1132       -e 's/rtm_protocol/Protocol/' \
1133       -e 's/rtm_scope/Scope/' \
1134       -e 's/rtm_type/Type/' \
1135       -e 's/rtm_flags/Flags/' \
1136     >> ${OUT}
1137
1138 # The rtgenmsg struct.
1139 grep '^type _rtgenmsg ' gen-sysinfo.go | \
1140     sed -e 's/_rtgenmsg/RtGenmsg/' \
1141       -e 's/rtgen_family/Family/' \
1142     >> ${OUT}
1143
1144 # The routing message flags.
1145 grep '^const _RT_' gen-sysinfo.go | \
1146     sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1147 grep '^const _RTA' gen-sysinfo.go | \
1148     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1149 grep '^const _RTF' gen-sysinfo.go | \
1150     sed -e 's/^\(const \)_\(RTF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1151 grep '^const _RTCF' gen-sysinfo.go | \
1152     sed -e 's/^\(const \)_\(RTCF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1153 grep '^const _RTM' gen-sysinfo.go | \
1154     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1155 grep '^const _RTN' gen-sysinfo.go | \
1156     sed -e 's/^\(const \)_\(RTN[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1157 grep '^const _RTPROT' gen-sysinfo.go | \
1158     sed -e 's/^\(const \)_\(RTPROT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1159
1160 # The ifinfomsg struct.
1161 grep '^type _ifinfomsg ' gen-sysinfo.go | \
1162     sed -e 's/_ifinfomsg/IfInfomsg/' \
1163       -e 's/ifi_family/Family/' \
1164       -e 's/ifi_type/Type/' \
1165       -e 's/ifi_index/Index/' \
1166       -e 's/ifi_flags/Flags/' \
1167       -e 's/ifi_change/Change/' \
1168     >> ${OUT}
1169
1170 # The interface information types and flags.
1171 grep '^const _IFA' gen-sysinfo.go | \
1172     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1173 grep '^const _IFLA' gen-sysinfo.go | \
1174     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1175 grep '^const _IFF' gen-sysinfo.go | \
1176     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1177 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
1178     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1179 grep '^const _SIOC' gen-sysinfo.go |
1180     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1181
1182 # The ifaddrmsg struct.
1183 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
1184     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
1185       -e 's/ifa_family/Family/' \
1186       -e 's/ifa_prefixlen/Prefixlen/' \
1187       -e 's/ifa_flags/Flags/' \
1188       -e 's/ifa_scope/Scope/' \
1189       -e 's/ifa_index/Index/' \
1190     >> ${OUT}
1191
1192 # The rtattr struct.
1193 grep '^type _rtattr ' gen-sysinfo.go | \
1194     sed -e 's/_rtattr/RtAttr/' \
1195       -e 's/rta_len/Len/' \
1196       -e 's/rta_type/Type/' \
1197     >> ${OUT}
1198
1199 # The in_pktinfo struct.
1200 grep '^type _in_pktinfo ' gen-sysinfo.go | \
1201     sed -e 's/_in_pktinfo/Inet4Pktinfo/' \
1202       -e 's/ipi_ifindex/Ifindex/' \
1203       -e 's/ipi_spec_dst/Spec_dst/' \
1204       -e 's/ipi_addr/Addr/' \
1205       -e 's/_in_addr/[4]byte/g' \
1206     >> ${OUT}
1207
1208 # The in6_pktinfo struct.
1209 grep '^type _in6_pktinfo ' gen-sysinfo.go | \
1210     sed -e 's/_in6_pktinfo/Inet6Pktinfo/' \
1211       -e 's/ipi6_addr/Addr/' \
1212       -e 's/ipi6_ifindex/Ifindex/' \
1213       -e 's/_in6_addr/[16]byte/' \
1214     >> ${OUT}
1215
1216 # The termios struct.
1217 grep '^type _termios ' gen-sysinfo.go | \
1218     sed -e 's/_termios/Termios/' \
1219       -e 's/c_iflag/Iflag/' \
1220       -e 's/c_oflag/Oflag/' \
1221       -e 's/c_cflag/Cflag/' \
1222       -e 's/c_lflag/Lflag/' \
1223       -e 's/c_line/Line/' \
1224       -e 's/c_cc/Cc/' \
1225       -e 's/c_ispeed/Ispeed/' \
1226       -e 's/c_ospeed/Ospeed/' \
1227     >> ${OUT}
1228
1229 # The termios constants.
1230 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
1231     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
1232     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 CS5 CS6 CS7 CS8 TABDLY \
1233     BSDLY VTDLY FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL \
1234     CLOCAL LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK \
1235     ECHONL ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN \
1236     VINTR VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP \
1237     VSUSP VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
1238     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
1239     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
1240     B38400 B57600 B115200 B230400 B460800 B500000 B576000 B921600 B1000000 \
1241     B1152000 B1500000 B2000000 B2500000 B3000000 B3500000 B4000000; do
1242
1243     grep "^const _$n " gen-sysinfo.go | \
1244         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1245 done
1246
1247 # The mount flags
1248 grep '^const _MNT_' gen-sysinfo.go |
1249     sed -e 's/^\(const \)_\(MNT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1250 grep '^const _MS_' gen-sysinfo.go |
1251     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1252
1253 # The fallocate flags.
1254 grep '^const _FALLOC_' gen-sysinfo.go |
1255     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1256
1257 # The statfs struct.
1258 # Prefer largefile variant if available.
1259 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
1260 if test "$statfs" != ""; then
1261   grep '^type _statfs64 ' gen-sysinfo.go
1262 else
1263   grep '^type _statfs ' gen-sysinfo.go
1264 fi | sed -e 's/type _statfs64/type Statfs_t/' \
1265          -e 's/type _statfs/type Statfs_t/' \
1266          -e 's/f_type/Type/' \
1267          -e 's/f_bsize/Bsize/' \
1268          -e 's/f_blocks/Blocks/' \
1269          -e 's/f_bfree/Bfree/' \
1270          -e 's/f_bavail/Bavail/' \
1271          -e 's/f_files/Files/' \
1272          -e 's/f_ffree/Ffree/' \
1273          -e 's/f_fsid/Fsid/' \
1274          -e 's/f_namelen/Namelen/' \
1275          -e 's/f_frsize/Frsize/' \
1276          -e 's/f_flags/Flags/' \
1277          -e 's/f_spare/Spare/' \
1278     >> ${OUT}
1279
1280 # The timex struct.
1281 timex=`grep '^type _timex ' gen-sysinfo.go || true`
1282 if test "$timex" = ""; then
1283   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
1284   if test "$timex" != ""; then
1285     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
1286   fi
1287 fi
1288 if test "$timex" != ""; then
1289   echo "$timex" | \
1290     sed -e 's/_timex/Timex/' \
1291       -e 's/modes/Modes/' \
1292       -e 's/offset/Offset/' \
1293       -e 's/freq/Freq/' \
1294       -e 's/maxerror/Maxerror/' \
1295       -e 's/esterror/Esterror/' \
1296       -e 's/status/Status/' \
1297       -e 's/constant/Constant/' \
1298       -e 's/precision/Precision/' \
1299       -e 's/tolerance/Tolerance/' \
1300       -e 's/ time / Time /' \
1301       -e 's/tick/Tick/' \
1302       -e 's/ppsfreq/Ppsfreq/' \
1303       -e 's/jitter/Jitter/' \
1304       -e 's/shift/Shift/' \
1305       -e 's/stabil/Stabil/' \
1306       -e 's/jitcnt/Jitcnt/' \
1307       -e 's/calcnt/Calcnt/' \
1308       -e 's/errcnt/Errcnt/' \
1309       -e 's/stbcnt/Stbcnt/' \
1310       -e 's/tai/Tai/' \
1311       -e 's/_timeval/Timeval/' \
1312     >> ${OUT}
1313 fi
1314
1315 # The rlimit struct.
1316 grep '^type _rlimit ' gen-sysinfo.go | \
1317     sed -e 's/_rlimit/Rlimit/' \
1318       -e 's/rlim_cur/Cur/' \
1319       -e 's/rlim_max/Max/' \
1320     >> ${OUT}
1321
1322 # The RLIMIT constants.
1323 grep '^const _RLIMIT_' gen-sysinfo.go |
1324     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1325 grep '^const _RLIM_' gen-sysinfo.go |
1326     sed -e 's/^\(const \)_\(RLIM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1327
1328 # The sysinfo struct.
1329 grep '^type _sysinfo ' gen-sysinfo.go | \
1330     sed -e 's/_sysinfo/Sysinfo_t/' \
1331       -e 's/uptime/Uptime/' \
1332       -e 's/loads/Loads/' \
1333       -e 's/totalram/Totalram/' \
1334       -e 's/freeram/Freeram/' \
1335       -e 's/sharedram/Sharedram/' \
1336       -e 's/bufferram/Bufferram/' \
1337       -e 's/totalswap/Totalswap/' \
1338       -e 's/freeswap/Freeswap/' \
1339       -e 's/procs/Procs/' \
1340       -e 's/totalhigh/Totalhigh/' \
1341       -e 's/freehigh/Freehigh/' \
1342       -e 's/mem_unit/Unit/' \
1343     >> ${OUT}
1344
1345 # The ustat struct.
1346 grep '^type _ustat ' gen-sysinfo.go | \
1347     sed -e 's/_ustat/Ustat_t/' \
1348       -e 's/f_tfree/Tfree/' \
1349       -e 's/f_tinode/Tinoe/' \
1350       -e 's/f_fname/Fname/' \
1351       -e 's/f_fpack/Fpack/' \
1352     >> ${OUT}
1353 # Force it to be defined, as on some older GNU/Linux systems the
1354 # header file fails when using with <linux/filter.h>.
1355 if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
1356   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
1357 fi
1358
1359 # The utimbuf struct.
1360 grep '^type _utimbuf ' gen-sysinfo.go | \
1361     sed -e 's/_utimbuf/Utimbuf/' \
1362       -e 's/actime/Actime/' \
1363       -e 's/modtime/Modtime/' \
1364     >> ${OUT}
1365
1366 # The LOCK flags for flock.
1367 grep '^const _LOCK_' gen-sysinfo.go |
1368     sed -e 's/^\(const \)_\(LOCK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1369
1370 # The PRIO constants.
1371 grep '^const _PRIO_' gen-sysinfo.go | \
1372   sed -e 's/^\(const \)_\(PRIO_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1373
1374 # The GNU/Linux LINUX_REBOOT flags.
1375 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
1376     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1377
1378 # The GNU/Linux sock_filter struct.
1379 grep '^type _sock_filter ' gen-sysinfo.go | \
1380     sed -e 's/_sock_filter/SockFilter/' \
1381       -e 's/code/Code/' \
1382       -e 's/jt/Jt/' \
1383       -e 's/jf/Jf/' \
1384       -e 's/k /K /' \
1385     >> ${OUT}
1386
1387 # The GNU/Linux sock_fprog struct.
1388 grep '^type _sock_fprog ' gen-sysinfo.go | \
1389     sed -e 's/_sock_fprog/SockFprog/' \
1390       -e 's/len/Len/' \
1391       -e 's/filter/Filter/' \
1392       -e 's/_sock_filter/SockFilter/' \
1393     >> ${OUT}
1394
1395 # The GNU/Linux filter flags.
1396 grep '^const _BPF_' gen-sysinfo.go | \
1397   sed -e 's/^\(const \)_\(BPF_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1398
1399 # The GNU/Linux nlattr struct.
1400 grep '^type _nlattr ' gen-sysinfo.go | \
1401     sed -e 's/_nlattr/NlAttr/' \
1402       -e 's/nla_len/Len/' \
1403       -e 's/nla_type/Type/' \
1404     >> ${OUT}
1405
1406 # The GNU/Linux nlmsgerr struct.
1407 grep '^type _nlmsgerr ' gen-sysinfo.go | \
1408     sed -e 's/_nlmsgerr/NlMsgerr/' \
1409       -e 's/error/Error/' \
1410       -e 's/msg/Msg/' \
1411       -e 's/_nlmsghdr/NlMsghdr/' \
1412     >> ${OUT}
1413
1414 # The GNU/Linux rtnexthop struct.
1415 grep '^type _rtnexthop ' gen-sysinfo.go | \
1416     sed -e 's/_rtnexthop/RtNexthop/' \
1417       -e 's/rtnh_len/Len/' \
1418       -e 's/rtnh_flags/Flags/' \
1419       -e 's/rtnh_hops/Hops/' \
1420       -e 's/rtnh_ifindex/Ifindex/' \
1421     >> ${OUT}
1422
1423 # The GNU/Linux netlink flags.
1424 grep '^const _NETLINK_' gen-sysinfo.go | \
1425   sed -e 's/^\(const \)_\(NETLINK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1426 grep '^const _NLA_' gen-sysinfo.go | grep -v '_val =' | \
1427   sed -e 's/^\(const \)_\(NLA_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1428
1429 if ! grep '^const NLA_HDRLEN' ${OUT} >/dev/null 2>&1; then
1430   if grep '^const _NLA_HDRLEN_val' ${OUT} >/dev/null 2>&1; then
1431     echo 'const NLA_HDRLEN = _NLA_HDRLEN_val' >> ${OUT}
1432   fi
1433 fi
1434
1435 # The GNU/Linux packet socket flags.
1436 grep '^const _PACKET_' gen-sysinfo.go | \
1437   sed -e 's/^\(const \)_\(PACKET_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1438
1439 # The GNU/Linux inotify_event struct.
1440 grep '^type _inotify_event ' gen-sysinfo.go | \
1441     sed -e 's/_inotify_event/InotifyEvent/' \
1442       -e 's/wd/Wd/' \
1443       -e 's/mask/Mask/' \
1444       -e 's/cookie/Cookie/' \
1445       -e 's/len/Len/' \
1446       -e 's/name/Name/' \
1447       -e 's/\[\]/[0]/' \
1448       -e 's/\[0\]byte/[0]int8/' \
1449     >> ${OUT}
1450
1451 # The GNU/Linux CLONE flags.
1452 grep '^const _CLONE_' gen-sysinfo.go | \
1453   sed -e 's/^\(const \)_\(CLONE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1454 # We need some CLONE constants that are not defined in older versions
1455 # of glibc.
1456 if ! grep '^const CLONE_NEWUSER ' ${OUT} > /dev/null 2>&1; then
1457   echo "const CLONE_NEWUSER = 0x10000000" >> ${OUT}
1458 fi
1459
1460 # Struct sizes.
1461 set cmsghdr Cmsghdr ip_mreq IPMreq ip_mreqn IPMreqn ipv6_mreq IPv6Mreq \
1462     ifaddrmsg IfAddrmsg ifinfomsg IfInfomsg in_pktinfo Inet4Pktinfo \
1463     in6_pktinfo Inet6Pktinfo inotify_event InotifyEvent linger Linger \
1464     msghdr Msghdr nlattr NlAttr nlmsgerr NlMsgerr nlmsghdr NlMsghdr \
1465     rtattr RtAttr rtgenmsg RtGenmsg rtmsg RtMsg rtnexthop RtNexthop \
1466     sock_filter SockFilter sock_fprog SockFprog ucred Ucred \
1467     icmp6_filter ICMPv6Filter
1468 while test $# != 0; do
1469     nc=$1
1470     ngo=$2
1471     shift
1472     shift
1473     if grep "^const _sizeof_$nc =" gen-sysinfo.go >/dev/null 2>&1; then
1474         echo "const Sizeof$ngo = _sizeof_$nc" >> ${OUT}
1475     fi
1476 done
1477
1478 # In order to compile the net package, we need some sizes to exist
1479 # even if the types do not.
1480 if ! grep 'const SizeofIPMreq ' ${OUT} >/dev/null 2>&1; then
1481     echo 'const SizeofIPMreq = 8' >> ${OUT}
1482 fi
1483 if ! grep 'const SizeofIPv6Mreq ' ${OUT} >/dev/null 2>&1; then
1484     echo 'const SizeofIPv6Mreq = 20' >> ${OUT}
1485 fi
1486 if ! grep 'const SizeofIPMreqn ' ${OUT} >/dev/null 2>&1; then
1487     echo 'const SizeofIPMreqn = 12' >> ${OUT}
1488 fi
1489 if ! grep 'const SizeofICMPv6Filter ' ${OUT} >/dev/null 2>&1; then
1490     echo 'const SizeofICMPv6Filter = 32' >> ${OUT}
1491 fi
1492
1493 # The Solaris 11 Update 1 _zone_net_addr_t struct.
1494 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
1495     sed -e 's/_in6_addr/[16]byte/' \
1496     >> ${OUT}
1497
1498 # The Solaris 12 _flow_arp_desc_t struct.
1499 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
1500     sed -e 's/_in6_addr_t/[16]byte/g' \
1501     >> ${OUT}
1502
1503 # The Solaris 12 _flow_l3_desc_t struct.
1504 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
1505     sed -e 's/_in6_addr_t/[16]byte/g' \
1506     >> ${OUT}
1507
1508 # The Solaris 12 _mac_ipaddr_t struct.
1509 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
1510     sed -e 's/_in6_addr_t/[16]byte/g' \
1511     >> ${OUT}
1512
1513 # The Solaris 12 _mactun_info_t struct.
1514 grep '^type _mactun_info_t ' gen-sysinfo.go | \
1515     sed -e 's/_in6_addr_t/[16]byte/g' \
1516     >> ${OUT}
1517
1518 exit $?