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mksysinfo.sh
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#!/bin/sh
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Create sysinfo.go from gen-sysinfo.go and errno.i.
# This shell script creates the sysinfo.go file which holds types and
# constants extracted from the system header files. This reads the
# raw data from gen-sysinfo.go which is generated using the
# -fdump-go-spec option.
# This currently exposes some names that ideally should not be
# exposed, as they match grep patterns. E.g., WCHAR_MIN gets exposed
# because it starts with W, like the wait flags.
OUT=tmp-sysinfo.go
set -e
echo 'package syscall' > ${OUT}
echo 'import "unsafe"' >> ${OUT}
echo 'type _ unsafe.Pointer' >> ${OUT}
# Get all the consts and types, skipping ones which could not be
# represented in Go and ones which we need to rewrite. We also skip
# function declarations, as we don't need them here. All the symbols
# will all have a leading underscore.
grep -v '^// ' gen-sysinfo.go | \
grep -v '^func' | \
grep -v '^var' | \
grep -v '^type _timeval ' | \
grep -v '^type _timespec_t ' | \
grep -v '^type _timespec ' | \
grep -v '^type _timestruc_t ' | \
grep -v '^type _epoll_' | \
grep -v '^type _*locale[_ ]' | \
grep -v 'in6_addr' | \
grep -v 'sockaddr_in6' | \
sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
>> ${OUT}
# On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
# a field of type _in6_addr, but other types depend on _arpcom, so we need to
# put it back.
grep '^type _arpcom ' gen-sysinfo.go | \
sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
# Same on Solaris for _mld_hdr_t.
grep '^type _mld_hdr_t ' gen-sysinfo.go | \
sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
# The errno constants. These get type Errno.
egrep '#define E[A-Z0-9_]+ [0-9E]' errno.i | \
sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
# Workaround for GNU/Hurd _EMIG_* errors having negative values
egrep '#define E[A-Z0-9_]+ -[0-9]' errno.i | \
sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(-_\1)/' >> ${OUT}
# The O_xxx flags.
egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
echo "const O_ASYNC = 0" >> ${OUT}
fi
if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
echo "const O_CLOEXEC = 0" >> ${OUT}
fi
# The os package requires F_DUPFD_CLOEXEC to be defined.
if ! grep '^const F_DUPFD_CLOEXEC' ${OUT} >/dev/null 2>&1; then
echo "const F_DUPFD_CLOEXEC = 0" >> ${OUT}
fi
# The internal/poll package requires F_GETPIPE_SZ to be defined.
if ! grep '^const F_GETPIPE_SZ' ${OUT} >/dev/null 2>&1; then
echo "const F_GETPIPE_SZ = 0" >> ${OUT}
fi
# AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
# which leads to a constant overflow when using O_CLOEXEC in some
# go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
# more present in 7.2 (_FCLOEXEC is a 32 bit value).
if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
mv ${OUT}-2 ${OUT}
fi
# These flags can be lost on i386 GNU/Linux when using
# -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
# before we see the definition of F_SETLK64.
for flag in F_GETLK F_SETLK F_SETLKW; do
if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
&& grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
echo "const ${flag} = ${flag}64" >> ${OUT}
fi
done
# The Flock_t struct for fcntl.
grep '^type _flock ' gen-sysinfo.go | \
sed -e 's/type _flock/type Flock_t/' \
-e 's/l_type/Type/' \
-e 's/l_whence/Whence/' \
-e 's/l_start/Start/' \
-e 's/l_len/Len/' \
-e 's/l_pid/Pid/' \
>> ${OUT}
# The signal numbers.
grep '^const _SIG[^_]' gen-sysinfo.go | \
grep -v '^const _SIGEV_' | \
sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
echo "const SIGPOLL = SIGIO" >> ${OUT}
fi
fi
if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
echo "const SIGCLD = SIGCHLD" >> ${OUT}
fi
fi
# The syscall numbers. We force the names to upper case.
grep '^const _SYS_' gen-sysinfo.go | \
sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
while read sys; do
sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
echo "const $sup = _$sys" >> ${OUT}
done
# Special treatment of SYS_IOCTL for GNU/Hurd.
if ! grep '^const SYS_IOCTL' ${OUT} > /dev/null 2>&1; then
echo "const SYS_IOCTL = 0" >> ${OUT}
fi
# The GNU/Linux support wants to use SYS_GETDENTS64 if available.
if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
echo "const SYS_GETDENTS = 0" >> ${OUT}
fi
if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
echo "const SYS_GETDENTS64 = 0" >> ${OUT}
fi
# The syscall package wants the geteuid system call number. It isn't
# defined on Alpha, which only provides the getresuid system call.
if ! grep '^const SYS_GETEUID ' ${OUT} >/dev/null 2>&1; then
echo "const SYS_GETEUID = 0" >> ${OUT}
fi
# Stat constants.
grep '^const _S_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# Mmap constants.
grep '^const _PROT_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _MAP_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _MADV_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _MCL_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# Process status constants.
grep '^const _W' gen-sysinfo.go |
sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# WSTOPPED was introduced in glibc 2.3.4.
if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
else
echo 'const WSTOPPED = 2' >> ${OUT}
fi
fi
if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
&& ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
echo 'const WALL = ___WALL' >> ${OUT}
fi
# On GNU/Linux the os package requires WEXITED and WNOWAIT.
if test "${GOOS}" = "linux"; then
if ! grep '^const WEXITED = ' ${OUT} >/dev/null 2>&1; then
echo 'const WEXITED = 4' >> ${OUT}
fi
if ! grep '^const WNOWAIT = ' ${OUT} >/dev/null 2>&1; then
echo 'const WNOWAIT = 0x01000000' >> ${OUT}
fi
fi
# Networking constants.
egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _SOMAXCONN' gen-sysinfo.go |
sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
>> ${OUT}
grep '^const _SHUT_' gen-sysinfo.go |
sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# The net package requires some const definitions.
for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
echo "const $m = 0" >> ${OUT}
fi
done
for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
echo "const $m = -1" >> ${OUT}
fi
done
# The syscall package requires AF_LOCAL.
if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
fi
fi
# The syscall package requires _AT_FDCWD, but doesn't export it.
if ! grep '^const _AT_FDCWD = ' ${OUT} >/dev/null 2>&1; then
echo "const _AT_FDCWD = -100" >> ${OUT}
fi
# sysconf constants.
grep '^const __SC' gen-sysinfo.go |
sed -e 's/^\(const \)__\(SC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
# pathconf constants.
grep '^const __PC' gen-sysinfo.go |
sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
# The PATH_MAX constant.
if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
echo 'const PathMax = _PATH_MAX' >> ${OUT}
fi
# epoll constants.
grep '^const _EPOLL' gen-sysinfo.go |
grep -v EPOLLET |
sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# Make sure EPOLLET is positive.
if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go >/dev/null 2>&1; then
grep '^const _EPOLLET ' gen-sysinfo.go |
sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
else
echo "const EPOLLET = 0x80000000" >> ${OUT}
fi
# Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
fi
if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
fi
# Prctl constants.
grep '^const _PR_' gen-sysinfo.go |
sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# Ptrace constants.
grep '^const _PTRACE' gen-sysinfo.go |
sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# We need some ptrace options that are not defined in older versions
# of glibc.
if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
fi
if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
fi
if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
fi
if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
fi
if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
fi
if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
fi
if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
fi
if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
fi
if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
fi
if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
fi
if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
echo "const _PTRACE_TRACEME = 0" >> ${OUT}
fi
# A helper function that prints a structure from gen-sysinfo.go with the first
# letter of the field names in upper case. $1 is the name of structure. If $2
# is not empty, the structure or type is renamed to $2.
upcase_fields () {
name="$1"
def=`grep "^type $name " gen-sysinfo.go`
fields=`echo $def | sed -e 's/^[^{]*{\(.*\)}$/\1/'`
prefix=`echo $def | sed -e 's/{.*//'`
if test "$2" != ""; then
prefix=`echo $prefix | sed -e "s/$1/$2/"`
fi
if test "$fields" != ""; then
nfields=
while test -n "$fields"; do
field=`echo $fields | sed -e 's/^\([^;]*\);.*$/\1/'`
fields=`echo $fields | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
# capitalize the next character.
f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
field="$f$r"
nfields="$nfields $field;"
done
echo "${prefix} {$nfields }"
fi
}
# The registers returned by PTRACE_GETREGS. This is probably
# GNU/Linux specific; it should do no harm if there is no
# _user_regs_struct.
regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
if test "$regs" = ""; then
# mips*
regs=`grep '^type _pt_regs struct' gen-sysinfo.go || true`
fi
if test "$regs" != ""; then
regs=`echo $regs | sed -e 's/type _pt_regs struct//'`
regs=`echo $regs |
sed -e 's/type __*user_regs_struct struct //' -e 's/[{}]//g'`
regs=`echo $regs | sed -e s'/^ *//'`
nregs=
while test -n "$regs"; do
field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
# Capitalize the first character of the field.
f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
field="$f$r"
field=`echo "$field" | sed \
-e 's/__user_psw_struct/PtracePsw/' \
-e 's/__user_fpregs_struct/PtraceFpregs/' \
-e 's/__user_per_struct/PtracePer/'`
nregs="$nregs $field;"
done
echo "type PtraceRegs struct {$nregs }" >> ${OUT}
fi
# Some basic types.
echo 'type Size_t _size_t' >> ${OUT}
echo "type Ssize_t _ssize_t" >> ${OUT}
if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
echo "type Offset_t _off64_t" >> ${OUT}
else
echo "type Offset_t _off_t" >> ${OUT}
fi
echo "type Mode_t _mode_t" >> ${OUT}
echo "type Pid_t _pid_t" >> ${OUT}
echo "type Uid_t _uid_t" >> ${OUT}
echo "type Gid_t _gid_t" >> ${OUT}
echo "type Socklen_t _socklen_t" >> ${OUT}
# The C int type.
sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
if test "$sizeof_int" = "4"; then
echo "type _C_int int32" >> ${OUT}
echo "type _C_uint uint32" >> ${OUT}
elif test "$sizeof_int" = "8"; then
echo "type _C_int int64" >> ${OUT}
echo "type _C_uint uint64" >> ${OUT}
else
echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
exit 1
fi
# The C long type, needed because that is the type that ptrace returns.
sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
if test "$sizeof_long" = "4"; then
echo "type _C_long int32" >> ${OUT}
echo "type _C_ulong uint32" >> ${OUT}
elif test "$sizeof_long" = "8"; then
echo "type _C_long int64" >> ${OUT}
echo "type _C_ulong uint64" >> ${OUT}
else
echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
exit 1
fi
# Solaris 2 needs _u?pad128_t, but its default definition in terms of long
# double is commented by -fdump-go-spec.
if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
fi
if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
fi
# The time_t type.
if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
echo 'type Time_t _time_t' >> ${OUT}
fi
# The time structures need special handling: we need to name the
# types, so that we can cast integers to the right types when
# assigning to the structures.
timeval=`grep '^type _timeval ' gen-sysinfo.go`
timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
echo "type Timeval_sec_t = $timeval_sec" >> ${OUT}
echo "type Timeval_usec_t = $timeval_usec" >> ${OUT}
echo $timeval | \
sed -e 's/type _timeval /type Timeval /' \
-e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
-e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
if test "$timespec" = ""; then
# IRIX 6.5 has __timespec instead.
timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
fi
timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
echo "type Timespec_sec_t = $timespec_sec" >> ${OUT}
echo "type Timespec_nsec_t = $timespec_nsec" >> ${OUT}
echo $timespec | \
sed -e 's/^type ___timespec /type Timespec /' \
-e 's/^type _timespec /type Timespec /' \
-e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
-e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
if test "$timestruc" != ""; then
timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
echo "type Timestruc_sec_t = $timestruc_sec" >> ${OUT}
echo "type Timestruc_nsec_t = $timestruc_nsec" >> ${OUT}
echo $timestruc | \
sed -e 's/^type _timestruc_t /type Timestruc /' \
-e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
-e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
fi
# The tms struct.
grep '^type _tms ' gen-sysinfo.go | \
sed -e 's/type _tms/type Tms/' \
-e 's/tms_utime/Utime/' \
-e 's/tms_stime/Stime/' \
-e 's/tms_cutime/Cutime/' \
-e 's/tms_cstime/Cstime/' \
>> ${OUT}
# AIX uses st_timespec struct for stat.
grep '^type _st_timespec ' gen-sysinfo.go | \
sed -e 's/type _st_timespec /type StTimespec /' \
-e 's/tv_sec/Sec/' \
-e 's/tv_nsec/Nsec/' >> ${OUT}
# Special treatment of struct stat st_dev for GNU/Hurd
# /usr/include/i386-gnu/bits/stat.h: #define st_dev st_fsid
st_dev='-e s/st_dev/Dev/'
if grep 'define st_dev st_fsid' gen-sysinfo.go > /dev/null 2>&1; then
st_dev='-e s/st_fsid/Dev/'
fi
# The stat type.
# Prefer largefile variant if available.
stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
if test "$stat" != ""; then
grep '^type _stat64 ' gen-sysinfo.go
else
grep '^type _stat ' gen-sysinfo.go
fi | sed -e 's/type _stat64/type Stat_t/' \
-e 's/type _stat/type Stat_t/' \
${st_dev} \
-e 's/st_ino/Ino/g' \
-e 's/st_nlink/Nlink/' \
-e 's/st_mode/Mode/' \
-e 's/st_uid/Uid/' \
-e 's/st_gid/Gid/' \
-e 's/st_rdev/Rdev/' \
-e 's/st_size/Size/' \
-e 's/st_blksize/Blksize/' \
-e 's/st_blocks/Blocks/' \
-e 's/st_atim/Atim/' \
-e 's/st_mtim/Mtim/' \
-e 's/st_ctim/Ctim/' \
-e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_st_timespec_t\([^a-zA-Z0-9_]\)/\1StTimespec\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
-e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
-e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
>> ${OUT}
# The directory searching types.
# Prefer largefile variant if available.
dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
if test "$dirent" != ""; then
grep '^type _dirent64 ' gen-sysinfo.go
else
grep '^type _dirent ' gen-sysinfo.go
fi | sed -e 's/type _dirent64/type Dirent/' \
-e 's/type _dirent/type Dirent/' \
-e 's/d_name \[0+1\]/d_name [0+256]/' \
-e 's/d_name/Name/' \
-e 's/]int8/]byte/' \
-e 's/d_ino/Ino/' \
-e 's/d_namlen/Namlen/' \
-e 's/d_off/Off/' \
-e 's/d_reclen/Reclen/' \
-e 's/d_type/Type/' \
>> ${OUT}
echo "type DIR _DIR" >> ${OUT}
# Values for d_type field in dirent.
grep '^const _DT_' gen-sysinfo.go |
sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# The rusage struct.
rusage=`grep '^type _rusage struct' gen-sysinfo.go`
if test "$rusage" != ""; then
# Remove anonymous unions from GNU/Linux <bits/resource.h>.
rusage=`echo $rusage | sed -e 's/Godump_[0-9][0-9]* struct {\([^}]*\)};/\1/g'`
rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
rusage=`echo $rusage | sed -e 's/^ *//'`
nrusage=
while test -n "$rusage"; do
field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
# Drop the leading ru_, capitalize the next character.
field=`echo $field | sed -e 's/^ru_//'`
f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
# Fix _timeval _timespec, and _timestruc_t.
r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
field="$f$r"
nrusage="$nrusage $field;"
done
echo "type Rusage struct {$nrusage }" >> ${OUT}
else
echo "type Rusage struct {}" >> ${OUT}
fi
# The RUSAGE constants.
grep '^const _RUSAGE_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# The utsname struct.
grep '^type _utsname ' gen-sysinfo.go | \
sed -e 's/_utsname/Utsname/' \
-e 's/sysname/Sysname/' \
-e 's/nodename/Nodename/' \
-e 's/release/Release/' \
-e 's/version/Version/' \
-e 's/machine/Machine/' \
-e 's/domainname/Domainname/' \
>> ${OUT}
# The iovec struct.
iovec=`grep '^type _iovec ' gen-sysinfo.go`
iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
echo "type Iovec_len_t $iovec_len" >> ${OUT}
echo $iovec | \
sed -e 's/_iovec/Iovec/' \
-e 's/iov_base/Base/' \
-e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
>> ${OUT}
# The msghdr struct.
msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
echo $msghdr | \
sed -e 's/_msghdr/Msghdr/' \
-e 's/msg_name/Name/' \
-e 's/msg_namelen/Namelen/' \
-e 's/msg_iov/Iov/' \
-e 's/msg_iovlen/Iovlen/' \
-e 's/_iovec/Iovec/' \
-e 's/msg_control/Control/' \
-e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
-e 's/msg_flags/Flags/' \
>> ${OUT}
# The MSG_ flags for Msghdr.
grep '^const _MSG_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# The cmsghdr struct.
cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
if test -n "$cmsghdr"; then
cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
echo "$cmsghdr" | \
sed -e 's/_cmsghdr/Cmsghdr/' \
-e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
-e 's/cmsg_level/Level/' \
-e 's/cmsg_type/Type/' \
-e 's/\[\]/[0]/' \
>> ${OUT}
fi
# The SCM_ flags for Cmsghdr.
grep '^const _SCM_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# The ucred struct.
upcase_fields "_ucred" "Ucred" >> ${OUT} || true
# The ip_mreq struct.
grep '^type _ip_mreq ' gen-sysinfo.go | \
sed -e 's/_ip_mreq/IPMreq/' \
-e 's/imr_multiaddr/Multiaddr/' \
-e 's/imr_interface/Interface/' \
-e 's/_in_addr/[4]byte/g' \
>> ${OUT}
# We need IPMreq to compile the net package.
if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
fi
# The ipv6_mreq struct.
grep '^type _ipv6_mreq ' gen-sysinfo.go | \
sed -e 's/_ipv6_mreq/IPv6Mreq/' \
-e 's/ipv6mr_multiaddr/Multiaddr/' \
-e 's/ipv6mr_interface/Interface/' \
-e 's/_in6_addr/[16]byte/' \
>> ${OUT}
# We need IPv6Mreq to compile the net package.
if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
fi
# The ip_mreqn struct.
grep '^type _ip_mreqn ' gen-sysinfo.go | \
sed -e 's/_ip_mreqn/IPMreqn/' \
-e 's/imr_multiaddr/Multiaddr/' \
-e 's/imr_address/Address/' \
-e 's/imr_ifindex/Ifindex/' \
-e 's/_in_addr/[4]byte/g' \
>> ${OUT}
# We need IPMreq to compile the net package.
if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
fi
# The icmp6_filter struct.
grep '^type _icmp6_filter ' gen-sysinfo.go | \
sed -e 's/_icmp6_filter/ICMPv6Filter/' \
-e 's/data/Data/' \
-e 's/filt/Filt/' \
>> ${OUT}
# We need ICMPv6Filter to compile the syscall package.
if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
fi
# The ip6_mtuinfo struct.
grep '^type _ip6_mtuinfo ' gen-sysinfo.go | \
sed -e 's/_ip6_mtuinfo/IPv6MTUInfo/' \
-e 's/ip6m_addr/Addr/' \
-e 's/_sockaddr_in6/RawSockaddrInet6/' \
-e 's/ip6m_mtu/Mtu/' \
>> ${OUT}
# We need IPv6MTUInfo to compile the syscall package.
if ! grep 'type IPv6MTUInfo ' ${OUT} >/dev/null 2>&1; then
echo 'type IPv6MTUInfo struct { Addr RawSockaddrInet6; Mtu uint32; }' >> ${OUT}
fi
if ! grep 'const _sizeof_ip6_mtuinfo = ' ${OUT} >/dev/null 2>&1; then
echo 'const SizeofIPv6MTUInfo = 32' >> ${OUT}
fi
# Try to guess the type to use for fd_set.
fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
fds_bits_type="_C_long"
if test "$fd_set" != ""; then
fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
fi
echo "type fds_bits_type $fds_bits_type" >> ${OUT}
# The addrinfo struct.
grep '^type _addrinfo ' gen-sysinfo.go | \
sed -e 's/_addrinfo/Addrinfo/g' \
-e 's/ ai_/ Ai_/g' \
>> ${OUT}
# The addrinfo and nameinfo flags and errors.
grep '^const _AI_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _EAI_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _NI_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(NI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# If nothing else defined EAI_OVERFLOW, make sure it has a value.
if ! grep "const EAI_OVERFLOW " ${OUT} >/dev/null 2>&1; then
echo "const EAI_OVERFLOW = 0" >> ${OUT}
fi
# The passwd struct.
grep '^type _passwd ' gen-sysinfo.go | \
sed -e 's/_passwd/Passwd/' \
-e 's/ pw_/ Pw_/g' \
>> ${OUT}
# The group struct.
grep '^type _group ' gen-sysinfo.go | \
sed -e 's/_group/Group/' \
-e 's/ gr_/ Gr_/g' \
>> ${OUT}
# The ioctl flags for the controlling TTY.
grep '^const _TIOC' gen-sysinfo.go | \
grep -v '_val =' | \
sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _TUNSET' gen-sysinfo.go | \
grep -v '_val =' | \
sed -e 's/^\(const \)_\(TUNSET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# We need TIOCGWINSZ.
if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCSWINSZ' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCSWINSZ_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCSWINSZ = _TIOCSWINSZ_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCGPGRP' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCGPGRP_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCGPGRP = _TIOCGPGRP_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCSPGRP' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCSPGRP_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCSPGRP = _TIOCSPGRP_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCGPTN' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCGPTN_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCGPTN = _TIOCGPTN_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCSPTLCK' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCSPTLCK_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCSPTLCK = _TIOCSPTLCK_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCGDEV' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCGDEV_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCGDEV = _TIOCGDEV_val' >> ${OUT}
fi
fi
if ! grep '^const TIOCSIG' ${OUT} >/dev/null 2>&1; then
if grep '^const _TIOCSIG_val' ${OUT} >/dev/null 2>&1; then
echo 'const TIOCSIG = _TIOCSIG_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETNOCSUM' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETNOCSUM_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETNOCSUM = _TUNSETNOCSUM_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETDEBUG' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETDEBUG_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETDEBUG = _TUNSETDEBUG_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETIFF' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETIFF_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETIFF = _TUNSETIFF_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETPERSIST' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETPERSIST_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETPERSIST = _TUNSETPERSIST_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETOWNER' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETOWNER_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETOWNER = _TUNSETOWNER_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETLINK' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETLINK_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETLINK = _TUNSETLINK_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETGROUP' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETGROUP_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETGROUP = _TUNSETGROUP_val' >> ${OUT}
fi
fi
if ! grep '^const TUNGETFEATURES' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNGETFEATURES_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNGETFEATURES = _TUNGETFEATURES_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETOFFLOAD' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETOFFLOAD_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETOFFLOAD = _TUNSETOFFLOAD_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETTXFILTER' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETTXFILTER_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETTXFILTER = _TUNSETTXFILTER_val' >> ${OUT}
fi
fi
if ! grep '^const TUNGETIFF' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNGETIFF_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNGETIFF = _TUNGETIFF_val' >> ${OUT}
fi
fi
if ! grep '^const TUNGETSNDBUF' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNGETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNGETSNDBUF = _TUNGETSNDBUF_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETSNDBUF' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETSNDBUF = _TUNSETSNDBUF_val' >> ${OUT}
fi
fi
if ! grep '^const TUNATTACHFILTER' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNATTACHFILTER_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNATTACHFILTER = _TUNATTACHFILTER_val' >> ${OUT}
fi
fi
if ! grep '^const TUNDETACHFILTER' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNDETACHFILTER_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNDETACHFILTER = _TUNDETACHFILTER_val' >> ${OUT}
fi
fi
if ! grep '^const TUNGETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNGETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNGETVNETHDRSZ = _TUNGETVNETHDRSZ_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETVNETHDRSZ = _TUNSETVNETHDRSZ_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETQUEUE' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETQUEUE_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETQUEUE = _TUNSETQUEUE_val' >> ${OUT}
fi
fi
if ! grep '^const TUNSETIFINDEX' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNSETIFINDEX_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNSETIFINDEX = _TUNSETIFINDEX_val' >> ${OUT}
fi
fi
if ! grep '^const TUNGETFILTER' ${OUT} >/dev/null 2>&1; then
if grep '^const _TUNGETFILTER_val' ${OUT} >/dev/null 2>&1; then
echo 'const TUNGETFILTER = _TUNGETFILTER_val' >> ${OUT}
fi
fi
# The ioctl flags for terminal control
grep '^const _TC[GS]ET' gen-sysinfo.go | grep -v _val | \
sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
if ! grep '^const TCGETS' ${OUT} >/dev/null 2>&1; then
if grep '^const _TCGETS_val' ${OUT} >/dev/null 2>&1; then
echo 'const TCGETS = _TCGETS_val' >> ${OUT}
fi
fi
if ! grep '^const TCSETS' ${OUT} >/dev/null 2>&1; then
if grep '^const _TCSETS_val' ${OUT} >/dev/null 2>&1; then
echo 'const TCSETS = _TCSETS_val' >> ${OUT}
fi
fi
# ioctl constants. Might fall back to 0 if TIOCNXCL is missing, too, but
# needs handling in syscalls.exec.go.
if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
fi
fi
# If nothing else defined TIOCSCTTY, make sure it has a value.
if ! grep "const TIOCSCTTY " ${OUT} >/dev/null 2>&1; then
echo "const TIOCSCTTY = 0" >> ${OUT}
fi
# The nlmsghdr struct.
grep '^type _nlmsghdr ' gen-sysinfo.go | \
sed -e 's/_nlmsghdr/NlMsghdr/' \
-e 's/nlmsg_len/Len/' \
-e 's/nlmsg_type/Type/' \
-e 's/nlmsg_flags/Flags/' \
-e 's/nlmsg_seq/Seq/' \
-e 's/nlmsg_pid/Pid/' \
>> ${OUT}
# The nlmsg flags and operators.
grep '^const _NLM' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
# NLMSG_HDRLEN is defined as an expression using sizeof.
if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
fi
fi
# The rtmsg struct.
grep '^type _rtmsg ' gen-sysinfo.go | \
sed -e 's/_rtmsg/RtMsg/' \
-e 's/rtm_family/Family/' \
-e 's/rtm_dst_len/Dst_len/' \
-e 's/rtm_src_len/Src_len/' \
-e 's/rtm_tos/Tos/' \
-e 's/rtm_table/Table/' \
-e 's/rtm_protocol/Protocol/' \
-e 's/rtm_scope/Scope/' \
-e 's/rtm_type/Type/' \
-e 's/rtm_flags/Flags/' \
>> ${OUT}
# The rtgenmsg struct.
grep '^type _rtgenmsg ' gen-sysinfo.go | \
sed -e 's/_rtgenmsg/RtGenmsg/' \
-e 's/rtgen_family/Family/' \
>> ${OUT}
# The routing message flags.
grep '^const _RT_' gen-sysinfo.go | \
sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
grep '^const _RTA' gen-sysinfo.go | \