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 #include <signal.h>
  44 #include <sys/ioctl.h>
  45 #include <termios.h>
  46 #if defined(HAVE_SYSCALL_H)
  47 #include <syscall.h>
  48 #endif
  49 #if defined(HAVE_SYS_SYSCALL_H)
  50 #include <sys/syscall.h>
  51 #endif
  52 #if defined(HAVE_SYS_EPOLL_H)
  53 #include <sys/epoll.h>
  54 #endif
  55 #if defined(HAVE_SYS_MMAN_H)
  56 #include <sys/mman.h>
  57 #endif
  58 #if defined(HAVE_SYS_PRCTL_H)
  59 #include <sys/prctl.h>
  60 #endif
  61 #if defined(HAVE_SYS_PTRACE_H)
  62 #include <sys/ptrace.h>
  63 #endif
  64 #include <sys/resource.h>
  65 #include <sys/uio.h>
  66 #include <sys/socket.h>
  67 #include <sys/stat.h>
  68 #include <sys/time.h>
  69 #include <sys/times.h>
  70 #include <sys/wait.h>
  71 #include <sys/un.h>
  72 #if defined(HAVE_SYS_USER_H)
  73 #include <sys/user.h>
  74 #endif
  75 #if defined(HAVE_SYS_UTSNAME_H)
  76 #include <sys/utsname.h>
  77 #endif
  78 #if defined(HAVE_SYS_SELECT_H)
  79 #include <sys/select.h>
  80 #endif
  81 #include <unistd.h>
  82 #include <netdb.h>
  83 #include <pwd.h>
  84 #if defined(HAVE_LINUX_FILTER_H)
  85 #include <linux/filter.h>
  86 #endif
  87 #if defined(HAVE_LINUX_NETLINK_H)
  88 #include <linux/netlink.h>
  89 #endif
  90 #if defined(HAVE_LINUX_RTNETLINK_H)
  91 #include <linux/rtnetlink.h>
  92 #endif
  93 #if defined(HAVE_NET_IF_H)
  94 #include <net/if.h>
  95 #endif
  96 #if defined(HAVE_SYS_MOUNT_H)
  97 #include <sys/mount.h>
  98 #endif
  99 #if defined(HAVE_SYS_VFS_H)
 100 #include <sys/vfs.h>
 101 #endif
 102 #if defined(HAVE_STATFS_H)
 103 #include <sys/statfs.h>
 104 #endif
 105
 106 /* Constants that may only be defined as expressions on some systems,
 107    expressions too complex for -fdump-go-spec to handle.  These are
 108    handled specially below.  */
 109 enum {
 110 #ifdef TIOCGWINSZ
 111   TIOCGWINSZ_val = TIOCGWINSZ,
 112 #endif
 113 };
 114 EOF
 115
 116 ${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c
 117
 118 echo 'package syscall' > ${OUT}
 119 echo 'import "unsafe"' >> ${OUT}
 120 echo 'type _ unsafe.Pointer' >> ${OUT}
 121
 122 # Get all the consts and types, skipping ones which could not be
 123 # represented in Go and ones which we need to rewrite.  We also skip
 124 # function declarations, as we don't need them here.  All the symbols
 125 # will all have a leading underscore.
 126 grep -v '^// ' gen-sysinfo.go | \
 127   grep -v '^func' | \
 128   grep -v '^type _timeval ' | \
 129   grep -v '^type _timespec_t ' | \
 130   grep -v '^type _timespec ' | \
 131   grep -v '^type _timestruc_t ' | \
 132   grep -v '^type _epoll_' | \
 133   grep -v 'in6_addr' | \
 134   grep -v 'sockaddr_in6' | \
 135   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 136       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 137       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 138       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 139     >> ${OUT}
 140
 141 # The errno constants.  These get type Errno.
 142 echo '#include <errno.h>' | ${CC} -x c - -E -dM | \
 143   egrep '#define E[A-Z0-9_]+ ' | \
 144   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
 145
 146 # The O_xxx flags.
 147 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
 148   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 149 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
 150   echo "const O_ASYNC = 0" >> ${OUT}
 151 fi
 152 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 153   echo "const O_CLOEXEC = 0" >> ${OUT}
 154 fi
 155
 156 # The signal numbers.
 157 grep '^const _SIG[^_]' gen-sysinfo.go | \
 158   grep -v '^const _SIGEV_' | \
 159   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 160
 161 # The syscall numbers.  We force the names to upper case.
 162 grep '^const _SYS_' gen-sysinfo.go | \
 163   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 164   while read sys; do
 165     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 166     echo "const $sup = _$sys" >> ${OUT}
 167   done
 168
 169 # Stat constants.
 170 grep '^const _S_' gen-sysinfo.go | \
 171   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 172
 173 # Mmap constants.
 174 grep '^const _PROT_' gen-sysinfo.go | \
 175   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 176 grep '^const _MAP_' gen-sysinfo.go | \
 177   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 178
 179 # Process status constants.
 180 grep '^const _W' gen-sysinfo.go |
 181   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 182 # WSTOPPED was introduced in glibc 2.3.4.
 183 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 184   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 185     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 186   else
 187     echo 'const WSTOPPED = 2' >> ${OUT}
 188   fi
 189 fi
 190 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 191    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 192   echo 'const WALL = ___WALL' >> ${OUT}
 193 fi
 194
 195 # Networking constants.
 196 egrep '^const _(AF|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 197   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 198 grep '^const _SOMAXCONN' gen-sysinfo.go |
 199   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 200     >> ${OUT}
 201 grep '^const _SHUT_' gen-sysinfo.go |
 202   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 203
 204 # The net package requires some const definitions.
 205 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS; do
 206   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 207     echo "const $m = 0" >> ${OUT}
 208   fi
 209 done
 210
 211 # pathconf constants.
 212 grep '^const __PC' gen-sysinfo.go |
 213   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 214
 215 # epoll constants.
 216 grep '^const _EPOLL' gen-sysinfo.go |
 217   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 218 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 219 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 220   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 221 fi
 222 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 223   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 224 fi
 225
 226 # Prctl constants.
 227 grep '^const _PR_' gen-sysinfo.go |
 228   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 229
 230 # Ptrace constants.
 231 grep '^const _PTRACE' gen-sysinfo.go |
 232   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 233 # We need some ptrace options that are not defined in older versions
 234 # of glibc.
 235 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 236   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 237 fi
 238 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 239   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 240 fi
 241 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 242   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 243 fi
 244 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 245   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 246 fi
 247 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 248   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 249 fi
 250 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 251   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 252 fi
 253 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 254   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 255 fi
 256 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 257   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 258 fi
 259 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 260   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 261 fi
 262 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 263   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 264 fi
 265 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 266   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 267 fi
 268 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 269   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 270 fi
 271 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 272   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 273 fi
 274 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 275   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 276 fi
 277 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 278   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 279 fi
 280 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 281   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 282 fi
 283 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 284   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 285 fi
 286
 287 # The registers returned by PTRACE_GETREGS.  This is probably
 288 # GNU/Linux specific; it should do no harm if there is no
 289 # _user_regs_struct.
 290 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 291 if test "$regs" != ""; then
 292   regs=`echo $regs | sed -e 's/type _user_regs_struct struct //' -e 's/[{}]//g'`
 293   regs=`echo $regs | sed -e s'/^ *//'`
 294   nregs=
 295   while test -n "$regs"; do
 296     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 297     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 298     # Capitalize the first character of the field.
 299     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 300     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 301     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 302     field="$f$r"
 303     nregs="$nregs $field;"
 304   done
 305   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 306 fi
 307
 308 # Some basic types.
 309 echo 'type Size_t _size_t' >> ${OUT}
 310 echo "type Ssize_t _ssize_t" >> ${OUT}
 311 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 312   echo "type Offset_t _off64_t" >> ${OUT}
 313 else
 314   echo "type Offset_t _off_t" >> ${OUT}
 315 fi
 316 echo "type Mode_t _mode_t" >> ${OUT}
 317 echo "type Pid_t _pid_t" >> ${OUT}
 318 echo "type Uid_t _uid_t" >> ${OUT}
 319 echo "type Gid_t _gid_t" >> ${OUT}
 320 echo "type Socklen_t _socklen_t" >> ${OUT}
 321
 322 # The long type, needed because that is the type that ptrace returns.
 323 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 324 if test "$sizeof_long" = "4"; then
 325   echo "type _C_long int32" >> ${OUT}
 326 elif test "$sizeof_long" = "8"; then
 327   echo "type _C_long int64" >> ${OUT}
 328 else
 329   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 330   exit 1
 331 fi
 332
 333 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 334 # double is commented by -fdump-go-spec.
 335 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 336   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 337 fi
 338 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 339   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 340 fi
 341
 342 # The time structures need special handling: we need to name the
 343 # types, so that we can cast integers to the right types when
 344 # assigning to the structures.
 345 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 346 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 347 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 348 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 349 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 350 echo $timeval | \
 351   sed -e 's/type _timeval /type Timeval /' \
 352       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 353       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 354 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 355 if test "$timespec" = ""; then
 356   # IRIX 6.5 has __timespec instead.
 357   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 358 fi
 359 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 360 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 361 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 362 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 363 echo $timespec | \
 364   sed -e 's/^type ___timespec /type Timespec /' \
 365       -e 's/^type _timespec /type Timespec /' \
 366       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 367       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 368
 369 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 370 if test "$timestruc" != ""; then
 371   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 372   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 373   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 374   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 375   echo $timestruc | \
 376     sed -e 's/^type _timestruc_t /type Timestruc /' \
 377         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 378         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 379 fi
 380
 381 # The tms struct.
 382 grep '^type _tms ' gen-sysinfo.go | \
 383     sed -e 's/type _tms/type Tms/' \
 384       -e 's/tms_utime/Utime/' \
 385       -e 's/tms_stime/Stime/' \
 386       -e 's/tms_cutime/Cutime/' \
 387       -e 's/tms_cstime/Cstime/' \
 388     >> ${OUT}
 389
 390 # The stat type.
 391 # Prefer largefile variant if available.
 392 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 393 if test "$stat" != ""; then
 394   grep '^type _stat64 ' gen-sysinfo.go
 395 else
 396   grep '^type _stat ' gen-sysinfo.go
 397 fi | sed -e 's/type _stat64/type Stat_t/' \
 398          -e 's/type _stat/type Stat_t/' \
 399          -e 's/st_dev/Dev/' \
 400          -e 's/st_ino/Ino/g' \
 401          -e 's/st_nlink/Nlink/' \
 402          -e 's/st_mode/Mode/' \
 403          -e 's/st_uid/Uid/' \
 404          -e 's/st_gid/Gid/' \
 405          -e 's/st_rdev/Rdev/' \
 406          -e 's/st_size/Size/' \
 407          -e 's/st_blksize/Blksize/' \
 408          -e 's/st_blocks/Blocks/' \
 409          -e 's/st_atim/Atime/' \
 410          -e 's/st_mtim/Mtime/' \
 411          -e 's/st_ctim/Ctime/' \
 412          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 413          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 414          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 415          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 416          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 417        >> ${OUT}
 418
 419 # The directory searching types.
 420 # Prefer largefile variant if available.
 421 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 422 if test "$dirent" != ""; then
 423   grep '^type _dirent64 ' gen-sysinfo.go
 424 else
 425   grep '^type _dirent ' gen-sysinfo.go
 426 fi | sed -e 's/type _dirent64/type Dirent/' \
 427          -e 's/type _dirent/type Dirent/' \
 428          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 429          -e 's/d_name/Name/' \
 430          -e 's/]int8/]byte/' \
 431          -e 's/d_ino/Ino/' \
 432          -e 's/d_off/Off/' \
 433          -e 's/d_reclen/Reclen/' \
 434          -e 's/d_type/Type/' \
 435       >> ${OUT}
 436 echo "type DIR _DIR" >> ${OUT}
 437
 438 # The rusage struct.
 439 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 440 if test "$rusage" != ""; then
 441   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 442   rusage=`echo $rusage | sed -e 's/^ *//'`
 443   nrusage=
 444   while test -n "$rusage"; do
 445     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 446     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 447     # Drop the leading ru_, capitalize the next character.
 448     field=`echo $field | sed -e 's/^ru_//'`
 449     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 450     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 451     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 452     # Fix _timeval _timespec, and _timestruc_t.
 453     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 454     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 455     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 456     field="$f$r"
 457     nrusage="$nrusage $field;"
 458   done
 459   echo "type Rusage struct {$nrusage }" >> ${OUT}
 460 else
 461   echo "type Rusage struct {}" >> ${OUT}
 462 fi
 463
 464 # The RUSAGE constants.
 465 grep '^const _RUSAGE_' gen-sysinfo.go | \
 466   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 467
 468 # The utsname struct.
 469 grep '^type _utsname ' gen-sysinfo.go | \
 470     sed -e 's/_utsname/Utsname/' \
 471       -e 's/sysname/Sysname/' \
 472       -e 's/nodename/Nodename/' \
 473       -e 's/release/Release/' \
 474       -e 's/version/Version/' \
 475       -e 's/machine/Machine/' \
 476       -e 's/domainname/Domainname/' \
 477     >> ${OUT}
 478
 479 # The iovec struct.
 480 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 481 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 482 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 483 echo $iovec | \
 484     sed -e 's/_iovec/Iovec/' \
 485       -e 's/iov_base/Base/' \
 486       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 487     >> ${OUT}
 488
 489 # The msghdr struct.
 490 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 491 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 492 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 493 echo $msghdr | \
 494     sed -e 's/_msghdr/Msghdr/' \
 495       -e 's/msg_name/Name/' \
 496       -e 's/msg_namelen/Namelen/' \
 497       -e 's/msg_iov/Iov/' \
 498       -e 's/msg_iovlen/Iovlen/' \
 499       -e 's/_iovec/Iovec/' \
 500       -e 's/msg_control/Control/' \
 501       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 502       -e 's/msg_flags/Flags/' \
 503     >> ${OUT}
 504
 505 # The MSG_ flags for Msghdr.
 506 grep '^const _MSG_' gen-sysinfo.go | \
 507   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 508
 509 # The cmsghdr struct.
 510 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 511 if test -n "$cmsghdr"; then
 512   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 513   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 514   echo "$cmsghdr" | \
 515       sed -e 's/_cmsghdr/Cmsghdr/' \
 516         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 517         -e 's/cmsg_level/Level/' \
 518         -e 's/cmsg_type/Type/' \
 519         -e 's/\[\]/[0]/' \
 520       >> ${OUT}
 521
 522   # The size of the cmsghdr struct.
 523   echo 'var SizeofCmsghdr = int(unsafe.Sizeof(Cmsghdr{}))' >> ${OUT}
 524 fi
 525
 526 # The SCM_ flags for Cmsghdr.
 527 grep '^const _SCM_' gen-sysinfo.go | \
 528   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 529
 530 # The ucred struct.
 531 grep '^type _ucred ' gen-sysinfo.go | \
 532     sed -e 's/_ucred/Ucred/' \
 533       -e 's/pid/Pid/' \
 534       -e 's/uid/Uid/' \
 535       -e 's/gid/Gid/' \
 536     >> ${OUT}
 537
 538 # The size of the ucred struct.
 539 if grep 'type Ucred ' ${OUT} >/dev/null 2>&1; then
 540   echo 'var SizeofUcred = int(unsafe.Sizeof(Ucred{}))' >> ${OUT}
 541 fi
 542
 543 # The ip_mreq struct.
 544 grep '^type _ip_mreq ' gen-sysinfo.go | \
 545     sed -e 's/_ip_mreq/IPMreq/' \
 546       -e 's/imr_multiaddr/Multiaddr/' \
 547       -e 's/imr_interface/Interface/' \
 548       -e 's/_in_addr/[4]byte/g' \
 549     >> ${OUT}
 550
 551 # We need IPMreq to compile the net package.
 552 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 553   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 554 fi
 555
 556 # The size of the ip_mreq struct.
 557 echo 'var SizeofIPMreq = int(unsafe.Sizeof(IPMreq{}))' >> ${OUT}
 558
 559 # The ipv6_mreq struct.
 560 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 561     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 562       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 563       -e 's/ipv6mr_interface/Interface/' \
 564       -e 's/_in6_addr/[16]byte/' \
 565     >> ${OUT}
 566
 567 # We need IPv6Mreq to compile the net package.
 568 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 569   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 570 fi
 571
 572 # The size of the ipv6_mreq struct.
 573 echo 'var SizeofIPv6Mreq = int(unsafe.Sizeof(IPv6Mreq{}))' >> ${OUT}
 574
 575 # The ip_mreqn struct.
 576 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 577     sed -e 's/_ip_mreqn/IPMreqn/' \
 578       -e 's/imr_multiaddr/Multiaddr/' \
 579       -e 's/imr_address/Address/' \
 580       -e 's/imr_ifindex/Ifindex/' \
 581       -e 's/_in_addr/[4]byte/g' \
 582     >> ${OUT}
 583
 584 # We need IPMreq to compile the net package.
 585 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 586   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 587 fi
 588
 589 # The size of the ip_mreqn struct.
 590 echo 'var SizeofIPMreqn = int(unsafe.Sizeof(IPMreqn{}))' >> ${OUT}
 591
 592 # Try to guess the type to use for fd_set.
 593 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 594 fds_bits_type="_C_long"
 595 if test "$fd_set" != ""; then
 596     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 597 fi
 598 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 599
 600 # The addrinfo struct.
 601 grep '^type _addrinfo ' gen-sysinfo.go | \
 602     sed -e 's/_addrinfo/Addrinfo/g' \
 603       -e 's/ ai_/ Ai_/g' \
 604     >> ${OUT}
 605
 606 # The addrinfo flags and errors.
 607 grep '^const _AI_' gen-sysinfo.go | \
 608   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 609 grep '^const _EAI_' gen-sysinfo.go | \
 610   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 611
 612 # The passwd struct.
 613 grep '^type _passwd ' gen-sysinfo.go | \
 614     sed -e 's/_passwd/Passwd/' \
 615       -e 's/ pw_/ Pw_/g' \
 616     >> ${OUT}
 617
 618 # The ioctl flags for the controlling TTY.
 619 grep '^const _TIOC' gen-sysinfo.go | \
 620     grep -v '_val =' | \
 621     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 622 # We need TIOCGWINSZ.
 623 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 624   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 625     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 626   fi
 627 fi
 628
 629 # The ioctl flags for terminal control
 630 grep '^const _TC[GS]ET' gen-sysinfo.go | \
 631     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 632
 633 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 634 # needs handling in syscalls.exec.go.
 635 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 636   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 637     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 638   fi
 639 fi
 640
 641 # The nlmsghdr struct.
 642 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 643     sed -e 's/_nlmsghdr/NlMsghdr/' \
 644       -e 's/nlmsg_len/Len/' \
 645       -e 's/nlmsg_type/Type/' \
 646       -e 's/nlmsg_flags/Flags/' \
 647       -e 's/nlmsg_seq/Seq/' \
 648       -e 's/nlmsg_pid/Pid/' \
 649     >> ${OUT}
 650
 651 # The nlmsg flags and operators.
 652 grep '^const _NLM' gen-sysinfo.go | \
 653     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 654
 655 # NLMSG_HDRLEN is defined as an expression using sizeof.
 656 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 657   if grep '^type NlMsghdr ' ${OUT} > /dev/null 2>&1; then
 658     echo 'var NLMSG_HDRLEN = int((unsafe.Sizeof(NlMsghdr{}) + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1))' >> ${OUT}
 659   fi
 660 fi
 661
 662 # The rtmsg struct.
 663 grep '^type _rtmsg ' gen-sysinfo.go | \
 664     sed -e 's/_rtmsg/RtMsg/' \
 665       -e 's/rtm_family/Family/' \
 666       -e 's/rtm_dst_len/Dst_len/' \
 667       -e 's/rtm_src_len/Src_len/' \
 668       -e 's/rtm_tos/Tos/' \
 669       -e 's/rtm_table/Table/' \
 670       -e 's/rtm_protocol/Procotol/' \
 671       -e 's/rtm_scope/Scope/' \
 672       -e 's/rtm_type/Type/' \
 673       -e 's/rtm_flags/Flags/' \
 674     >> ${OUT}
 675
 676 # The size of the rtmsg struct.
 677 if grep 'type RtMsg ' ${OUT} > /dev/null 2>&1; then
 678   echo 'var SizeofRtMsg = int(unsafe.Sizeof(RtMsg{}))' >> ${OUT}
 679 fi
 680
 681 # The rtgenmsg struct.
 682 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 683     sed -e 's/_rtgenmsg/RtGenmsg/' \
 684       -e 's/rtgen_family/Family/' \
 685     >> ${OUT}
 686
 687 # The routing message flags.
 688 grep '^const _RTA' gen-sysinfo.go | \
 689     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 690 grep '^const _RTM' gen-sysinfo.go | \
 691     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 692
 693 # The size of the rtgenmsg struct.
 694 if grep 'type RtGenmsg ' ${OUT} > /dev/null 2>&1; then
 695   echo 'var SizeofRtGenmsg = int(unsafe.Sizeof(RtGenmsg{}))' >> ${OUT}
 696 fi
 697
 698 # The ifinfomsg struct.
 699 grep '^type _ifinfomsg ' gen-sysinfo.go | \
 700     sed -e 's/_ifinfomsg/IfInfomsg/' \
 701       -e 's/ifi_family/Family/' \
 702       -e 's/ifi_type/Type/' \
 703       -e 's/ifi_index/Index/' \
 704       -e 's/ifi_flags/Flags/' \
 705       -e 's/ifi_change/Change/' \
 706     >> ${OUT}
 707
 708 # The interface information types and flags.
 709 grep '^const _IFA' gen-sysinfo.go | \
 710     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 711 grep '^const _IFLA' gen-sysinfo.go | \
 712     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 713 grep '^const _IFF' gen-sysinfo.go | \
 714     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 715
 716 # The size of the ifinfomsg struct.
 717 if grep 'type IfInfomsg ' ${OUT} > /dev/null 2>&1; then
 718   echo 'var SizeofIfInfomsg = int(unsafe.Sizeof(IfInfomsg{}))' >> ${OUT}
 719 fi
 720
 721 # The ifaddrmsg struct.
 722 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
 723     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
 724       -e 's/ifa_family/Family/' \
 725       -e 's/ifa_prefixlen/Prefixlen/' \
 726       -e 's/ifa_flags/Flags/' \
 727       -e 's/ifa_scope/Scope/' \
 728       -e 's/ifa_index/Index/' \
 729     >> ${OUT}
 730
 731 # The size of the ifaddrmsg struct.
 732 if grep 'type IfAddrmsg ' ${OUT} > /dev/null 2>&1; then
 733   echo 'var SizeofIfAddrmsg = int(unsafe.Sizeof(IfAddrmsg{}))' >> ${OUT}
 734 fi
 735
 736 # The rtattr struct.
 737 grep '^type _rtattr ' gen-sysinfo.go | \
 738     sed -e 's/_rtattr/RtAttr/' \
 739       -e 's/rta_len/Len/' \
 740       -e 's/rta_type/Type/' \
 741     >> ${OUT}
 742
 743 # The size of the rtattr struct.
 744 if grep 'type RtAttr ' ${OUT} > /dev/null 2>&1; then
 745   echo 'var SizeofRtAttr = int(unsafe.Sizeof(RtAttr{}))' >> ${OUT}
 746 fi
 747
 748 # The termios struct.
 749 grep '^type _termios ' gen-sysinfo.go | \
 750     sed -e 's/_termios/Termios/' \
 751       -e 's/c_iflag/Iflag/' \
 752       -e 's/c_oflag/Oflag/' \
 753       -e 's/c_cflag/Cflag/' \
 754       -e 's/c_lflag/Lflag/' \
 755       -e 's/c_line/Line/' \
 756       -e 's/c_cc/Cc/' \
 757       -e 's/c_ispeed/Ispeed/' \
 758       -e 's/c_ospeed/Ospeed/' \
 759     >> ${OUT}
 760
 761 # The termios constants.
 762 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
 763     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
 764     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 TABDLY BSDLY VTDLY \
 765     FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL CLOCAL \
 766     LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK ECHONL \
 767     ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN VINTR \
 768     VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP VSUSP \
 769     VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
 770     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
 771     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
 772     B38400 B57600 B115200 B230400; do
 773
 774     grep "^const _$n " gen-sysinfo.go | \
 775         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 776 done
 777
 778 # The mount flags
 779 grep '^const _MS_' gen-sysinfo.go |
 780     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 781
 782 # The fallocate flags.
 783 grep '^const _FALLOC_' gen-sysinfo.go |
 784     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 785
 786 # The statfs struct.
 787 # Prefer largefile variant if available.
 788 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
 789 if test "$statfs" != ""; then
 790   grep '^type _statfs64 ' gen-sysinfo.go
 791 else
 792   grep '^type _statfs ' gen-sysinfo.go
 793 fi | sed -e 's/type _statfs64/type Statfs_t/' \
 794          -e 's/type _statfs/type Statfs_t/' \
 795          -e 's/f_type/Type/' \
 796          -e 's/f_bsize/Bsize/' \
 797          -e 's/f_blocks/Blocks/' \
 798          -e 's/f_bfree/Bfree/' \
 799          -e 's/f_bavail/Bavail/' \
 800          -e 's/f_files/Files/' \
 801          -e 's/f_ffree/Ffree/' \
 802          -e 's/f_fsid/Fsid/' \
 803          -e 's/f_namelen/Namelen/' \
 804          -e 's/f_frsize/Frsize/' \
 805          -e 's/f_flags/Flags/' \
 806          -e 's/f_spare/Spare/' \
 807     >> ${OUT}
 808
 809 exit $?