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