| #!/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. |
| |
| # 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 -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 |
| # match grep patterns. E.g., WCHAR_MIN gets exposed because it starts |
| # with W, like the wait flags. |
| |
| CC=${CC:-gcc} |
| OUT=tmp-sysinfo.go |
| |
| set -e |
| |
| 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> |
| #include <fcntl.h> |
| #include <netinet/in.h> |
| #include <netinet/tcp.h> |
| #include <signal.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 |
| #if defined(HAVE_SYS_PTRACE_H) |
| #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 <sys/wait.h> |
| #include <sys/un.h> |
| #if defined(HAVE_SYS_USER_H) |
| #include <sys/user.h> |
| #endif |
| #if defined(HAVE_SYS_UTSNAME_H) |
| #include <sys/utsname.h> |
| #endif |
| #include <unistd.h> |
| EOF |
| |
| ${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c |
| |
| echo 'package syscall' > ${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 '^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. |
| grep '^const _E' gen-sysinfo.go | \ |
| sed -e 's/^\(const \)_\(E[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT} |
| |
| # 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 |
| |
| # The signal numbers. |
| grep '^const _SIG[^_]' gen-sysinfo.go | \ |
| grep -v '^const _SIGEV_' | \ |
| sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT} |
| |
| # 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 |
| |
| # Stat constants. |
| grep '^const _S_' gen-sysinfo.go | \ |
| sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\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 |
| |
| # Networking constants. |
| grep '^const _\(AF\|SOCK\|SOL\|SO\|IPPROTO\|TCP\|IP\|IPV6\)_' 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 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} |
| |
| # The epoll constants were picked up by the errno constants, but we |
| # need to be sure the EPOLLRDHUP is defined. |
| if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then |
| echo "const EPOLLRDHUP = 0x2000" >> ${OUT} |
| fi |
| |
| # Ptrace constants. We don't expose all the PTRACE flags, just the |
| # PTRACE_O_xxx and PTRACE_EVENT_xxx ones. |
| grep '^const _PTRACE_O' gen-sysinfo.go | |
| sed -e 's/^\(const \)_\(PTRACE_O[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT} |
| grep '^const _PTRACE_EVENT' gen-sysinfo.go | |
| sed -e 's/^\(const \)_\(PTRACE_EVENT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT} |
| # We need PTRACE_SETOPTIONS and PTRACE_GETEVENTMSG, but they 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" >> ${OUT} |
| fi |
| |
| # The registers returned by PTRACE_GETREGS. This is probably |
| # GNU/Linux specific; it should do no harm if there is no |
| # _user_regs_struct. |
| regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true` |
| if test "$regs" != ""; then |
| 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$r" |
| nregs="$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" >> ${OUT} |
| |
| # The long type, needed because that is the type that ptrace returns. |
| sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'` |
| if test "$sizeof_long" = "4"; then |
| echo "type _C_long int32" >> ${OUT} |
| elif test "$sizeof_long" = "8"; then |
| echo "type _C_long int64" >> ${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 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` |
| 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/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/' >> ${OUT} |
| fi |
| |
| # The stat type. |
| # Prefer largefile variant if available. |
| stat=`grep '^type _stat64 ' gen-sysinfo.go || true` |
| if test "$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' \ |
| >> ${OUT} |
| |
| # The directory searching types. |
| # Prefer largefile variant if available. |
| dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true` |
| if test "$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" >> ${OUT} |
| |
| # The rusage struct. |
| rusage=`grep '^type _rusage struct' gen-sysinfo.go` |
| if test "$rusage" != ""; then |
| 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} |
| fi |
| |
| # 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} |
| |
| exit $? |