github.com/axw/llgo@v0.0.0-20160805011314-95b5fe4dca20/third_party/gofrontend/libgo/mksysinfo.sh (about)

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