# This shell script creates the sysinfo.go file which holds types and
# constants extracted from the system header files. This relies on a
-# hook in gcc: the -ggo option will generate debugging information in
-# Go syntax.
+# hook in gcc: the -fdump-go-spec option will generate debugging
+# information in Go syntax.
# We currently #include all the files at once, which works, but leads
# to exposing some names which ideally should not be exposed, as they
set -e
-rm -f sysinfo.go
-
rm -f sysinfo.c
cat > sysinfo.c <<EOF
#include "config.h"
+
+#define _GNU_SOURCE
+#define _LARGEFILE_SOURCE
+#define _FILE_OFFSET_BITS 64
+
+#if defined(__sun__) && defined(__svr4__)
+/* Needed by Solaris header files. */
+#define _XOPEN_SOURCE 600
+#define __EXTENSIONS__
+#endif
+
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#if defined(HAVE_SYSCALL_H)
#include <syscall.h>
#endif
+#if defined(HAVE_SYS_SYSCALL_H)
+#include <sys/syscall.h>
+#endif
#if defined(HAVE_SYS_EPOLL_H)
#include <sys/epoll.h>
#endif
#include <sys/ptrace.h>
#endif
#include <sys/resource.h>
+#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <unistd.h>
EOF
-${CC} -D_GNU_SOURCE -fdump-go-spec=gen-sysinfo.go -S -o sysinfo.s sysinfo.c
+${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c
echo 'package syscall' > ${OUT}
grep -v '^func' | \
grep -v '^type _timeval ' | \
grep -v '^type _timespec ' | \
+ grep -v '^type _timestruc_t ' | \
grep -v '^type _epoll_' | \
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\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
+ -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
>> ${OUT}
# The errno constants.
# The O_xxx flags.
grep '^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
grep '^const _SHUT_' gen-sysinfo.go |
sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
+# The net package requires a definition for IPV6ONLY.
+if ! grep '^const IPV6_V6ONLY ' ${OUT} >/dev/null 2>&1; then
+ echo "const IPV6_V6ONLY = 0" >> ${OUT}
+fi
+
# pathconf constants.
grep '^const __PC' gen-sysinfo.go |
sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
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" >> ${OUT}
+fi
# The registers returned by PTRACE_GETREGS. This is probably
-# GNU/Linux specific.
-regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go`
+# GNU/Linux specific; it should do no harm if there is no
+# _user_regs_struct.
+regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
if test "$regs" != ""; then
regs=`echo $regs | sed -e 's/type _user_regs_struct struct //' -e 's/[{}]//g'`
regs=`echo $regs | sed -e s'/^ *//'`
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 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.
-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 stat type.
-grep 'type _stat ' gen-sysinfo.go | \
- sed -e 's/type _stat/type Stat_t/' \
- -e 's/st_dev/Dev/' \
- -e 's/st_ino/Ino/' \
- -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/Atime/' \
- -e 's/st_mtim/Mtime/' \
- -e 's/st_ctim/Ctime/' \
- -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
- -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
- >> ${OUT}
+# Prefer largefile variant if available.
+stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
+if test "$stat" != ""; then
+ grep '^type _stat64 ' gen-sysinfo.go
+else
+ grep '^type _stat ' gen-sysinfo.go
+fi | sed -e 's/type _stat\(64\)\?/type Stat_t/' \
+ -e 's/st_dev/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/Atime/' \
+ -e 's/st_mtim/Mtime/' \
+ -e 's/st_ctim/Ctime/' \
+ -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\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}
# The directory searching types.
-grep '^type _dirent ' gen-sysinfo.go | \
- sed -e 's/type _dirent/type Dirent/' \
- -e 's/d_name/Name/' \
- -e 's/]int8/]byte/' \
- -e 's/d_ino/Ino/' \
- -e 's/d_off/Off/' \
- -e 's/d_reclen/Reclen/' \
- -e 's/d_type/Type/' \
- >> ${OUT}
+# Prefer largefile variant if available.
+dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
+if test "$dirent" != ""; then
+ grep '^type _dirent64 ' gen-sysinfo.go
+else
+ grep '^type _dirent ' gen-sysinfo.go
+fi | sed -e 's/type _dirent\(64\)\?/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_off/Off/' \
+ -e 's/d_reclen/Reclen/' \
+ -e 's/d_type/Type/' \
+ >> ${OUT}
echo "type DIR _DIR" >> ${OUT}
# The rusage struct.
f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
- # Fix _timeval and _timespec.
+ # 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
-e 's/domainname/Domainname/' \
>> ${OUT}
-mv -f ${OUT} sysinfo.go
+# 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 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}
+
exit $?
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