1#!/bin/sh 2 3# Copyright 2016 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 runtime_sysinfo.go from gen-sysinfo.go and errno.i. 8 9OUT=tmp-runtime_sysinfo.go 10 11set -e 12 13echo 'package runtime' > ${OUT} 14 15# Get all the consts and types, skipping ones which could not be 16# represented in Go and ones which we need to rewrite. We also skip 17# function declarations, as we don't need them here. All the symbols 18# will all have a leading underscore. 19grep -v '^// ' gen-sysinfo.go | \ 20 grep -v '^func' | \ 21 grep -v '^var ' | \ 22 grep -v '^type _timeval ' | \ 23 grep -v '^type _timespec_t ' | \ 24 grep -v '^type _timespec ' | \ 25 grep -v '^type _epoll_' | \ 26 grep -v '^type _*locale[_ ]' | \ 27 grep -v 'in6_addr' | \ 28 grep -v 'sockaddr_in6' | \ 29 sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1timeval\2/g' \ 30 -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1timespec\2/g' \ 31 -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1timespec\2/g' \ 32 >> ${OUT} 33 34# On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as 35# a field of type _in6_addr, but other types depend on _arpcom, so we need to 36# put it back. 37grep '^type _arpcom ' gen-sysinfo.go | \ 38 sed -e 's/_in6_addr/[16]byte/' >> ${OUT} 39 40# Same on Solaris for _mld_hdr_t. 41grep '^type _mld_hdr_t ' gen-sysinfo.go | \ 42 sed -e 's/_in6_addr/[16]byte/' >> ${OUT} 43 44# The time structures need special handling: we need to name the 45# types, so that we can cast integers to the right types when 46# assigning to the structures. 47timeval=`grep '^type _timeval ' gen-sysinfo.go` 48timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'` 49timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'` 50echo "type timeval_sec_t $timeval_sec" >> ${OUT} 51echo "type timeval_usec_t $timeval_usec" >> ${OUT} 52echo $timeval | \ 53 sed -e 's/type _timeval /type timeval /' \ 54 -e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timeval_sec_t/' \ 55 -e 's/tv_usec *[a-zA-Z0-9_]*/tv_usec timeval_usec_t/' >> ${OUT} 56echo >> ${OUT} 57echo "func (tv *timeval) set_usec(x int32) {" >> ${OUT} 58echo " tv.tv_usec = timeval_usec_t(x)" >> ${OUT} 59echo "}" >> ${OUT} 60 61timespec=`grep '^type _timespec ' gen-sysinfo.go || true` 62if test "$timespec" = ""; then 63 # IRIX 6.5 has __timespec instead. 64 timespec=`grep '^type ___timespec ' gen-sysinfo.go || true` 65fi 66timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'` 67timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'` 68echo "type timespec_sec_t $timespec_sec" >> ${OUT} 69echo "type timespec_nsec_t $timespec_nsec" >> ${OUT} 70echo $timespec | \ 71 sed -e 's/^type ___timespec /type timespec /' \ 72 -e 's/^type _timespec /type timespec /' \ 73 -e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timespec_sec_t/' \ 74 -e 's/tv_nsec *[a-zA-Z0-9_]*/tv_nsec timespec_nsec_t/' >> ${OUT} 75echo >> ${OUT} 76echo "func (ts *timespec) set_sec(x int64) {" >> ${OUT} 77echo " ts.tv_sec = timespec_sec_t(x)" >> ${OUT} 78echo "}" >> ${OUT} 79echo >> ${OUT} 80echo "func (ts *timespec) set_nsec(x int32) {" >> ${OUT} 81echo " ts.tv_nsec = timespec_nsec_t(x)" >> ${OUT} 82echo "}" >> ${OUT} 83 84# Define the epollevent struct. This needs special attention because 85# the C definition uses a union and is sometimes packed. 86if grep '^const _epoll_data_offset ' ${OUT} >/dev/null 2>&1; then 87 val=`grep '^const _epoll_data_offset ' ${OUT} | sed -e 's/const _epoll_data_offset = \(.*\)$/\1/'` 88 if test "$val" = "4"; then 89 echo 'type epollevent struct { events uint32; data [8]byte }' >> ${OUT} 90 elif test "$val" = "8"; then 91 if test "$GOARCH" = "sparc64" -a "$GOOS" = "linux"; then 92 echo 'type epollevent struct { events uint32; pad [4]byte; data [8]byte; _align [0]int64 }' >> ${OUT} 93 else 94 echo 'type epollevent struct { events uint32; pad [4]byte; data [8]byte }' >> ${OUT} 95 fi 96 else 97 echo 1>&2 "unknown epoll data offset value ${val}" 98 exit 1 99 fi 100fi 101# Make sure EPOLLET is positive. 102if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go > /dev/null 2>&1; then 103 echo "const _EPOLLETpos = _EPOLLET" >> ${OUT} 104else 105 echo "const _EPOLLETpos = 0x80000000" >> ${OUT} 106fi 107# Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined. 108if ! grep '^const _EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then 109 echo "const _EPOLLRDHUP = 0x2000" >> ${OUT} 110fi 111if ! grep '^const _EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then 112 echo "const _EPOLL_CLOEXEC = 02000000" >> ${OUT} 113fi 114 115# AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC) 116# which leads to a constant overflow when using O_CLOEXEC in some 117# go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no 118# more present in 7.2 (_FCLOEXEC is a 32 bit value). 119if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then 120 sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2 121 mv ${OUT}-2 ${OUT} 122fi 123 124# Make sure _MAP_FAILED is defined. 125if ! grep '^const _MAP_FAILED =' gen-sysinfo.go > /dev/null 2>&1; then 126 echo "const _MAP_FAILED = ^uintptr(0)" >> ${OUT} 127fi 128# Make sure _MAP_ANON is defined. 129if ! grep '^const _MAP_ANON =' gen-sysinfo.go > /dev/null 2>&1; then 130 if grep '^const _MAP_ANONYMOUS ' gen-sysinfo.go > /dev/null 2>&1; then 131 echo "const _MAP_ANON = _MAP_ANONYMOUS" >> ${OUT} 132 else 133 echo "const _MAP_ANON = 0" >> ${OUT} 134 fi 135fi 136# Make sure _MADV_DONTNEED is defined. 137if ! grep '^const _MADV_DONTNEED =' gen-sysinfo.go > /dev/null 2>&1; then 138 echo "const _MADV_DONTNEED = 0" >> ${OUT} 139fi 140# Make sure _MADV_FREE is defined. 141if ! grep '^const _MADV_FREE =' gen-sysinfo.go > /dev/null 2>&1; then 142 echo "const _MADV_FREE = 0" >> ${OUT} 143fi 144# Make sure _MADV_HUGEPAGE is defined. 145if ! grep '^const _MADV_HUGEPAGE =' gen-sysinfo.go > /dev/null 2>&1; then 146 echo "const _MADV_HUGEPAGE = 0" >> ${OUT} 147fi 148# Make sure _MADV_NOHUGEPAGE is defined. 149if ! grep '^const _MADV_NOHUGEPAGE =' gen-sysinfo.go > /dev/null 2>&1; then 150 echo "const _MADV_NOHUGEPAGE = 0" >> ${OUT} 151fi 152 153# The semt structure, for Solaris. 154grep '^type _sem_t ' gen-sysinfo.go | \ 155 sed -e 's/_sem_t/semt/' >> ${OUT} 156 157# Solaris 2 needs _u?pad128_t, but its default definition in terms of long 158# double is commented by -fdump-go-spec. 159if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then 160 echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT} 161fi 162if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then 163 echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT} 164fi 165 166# The Solaris 11 Update 1 _zone_net_addr_t struct. 167grep '^type _zone_net_addr_t ' gen-sysinfo.go | \ 168 sed -e 's/_in6_addr/[16]byte/' \ 169 >> ${OUT} 170 171# The Solaris 11.4 _flow_arp_desc_t struct. 172grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \ 173 sed -e 's/_in6_addr_t/[16]byte/g' \ 174 >> ${OUT} 175 176# The Solaris 11.4 _flow_l3_desc_t struct. 177grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \ 178 sed -e 's/_in6_addr_t/[16]byte/g' \ 179 >> ${OUT} 180 181# The Solaris 11.3 _mac_ipaddr_t struct. 182grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \ 183 sed -e 's/_in6_addr_t/[16]byte/g' \ 184 >> ${OUT} 185 186# The Solaris 11.3 _mactun_info_t struct. 187grep '^type _mactun_info_t ' gen-sysinfo.go | \ 188 sed -e 's/_in6_addr_t/[16]byte/g' \ 189 >> ${OUT} 190 191# The Solaris port_event_t struct. 192grep '^type _port_event_t ' gen-sysinfo.go | \ 193 sed -e s'/_port_event_t/portevent/' \ 194 >> ${OUT} 195 196# The *BSD kevent struct. 197grep '^type _kevent ' gen-sysinfo.go | \ 198 sed -e s'/_kevent/keventt/' \ 199 -e 's/ udata [^;}]*/ udata *byte/' \ 200 >> ${OUT} 201