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1 #!/bin/sh
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2
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3 # Copyright 2016 The Go Authors. All rights reserved.
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4 # Use of this source code is governed by a BSD-style
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5 # license that can be found in the LICENSE file.
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6
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7 # Create runtime_sysinfo.go from gen-sysinfo.go and errno.i.
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8
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9 OUT=tmp-runtime_sysinfo.go
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10
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11 set -e
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12
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13 echo 'package runtime' > ${OUT}
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14
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15 # Get all the consts and types, skipping ones which could not be
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16 # represented in Go and ones which we need to rewrite. We also skip
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17 # function declarations, as we don't need them here. All the symbols
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18 # will all have a leading underscore.
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19 grep -v '^// ' gen-sysinfo.go | \
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20 grep -v '^func' | \
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21 grep -v '^var ' | \
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22 grep -v '^type _timeval ' | \
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23 grep -v '^type _timespec_t ' | \
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24 grep -v '^type _timespec ' | \
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25 grep -v '^type _epoll_' | \
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26 grep -v '^type _*locale[_ ]' | \
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27 grep -v 'in6_addr' | \
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28 grep -v 'sockaddr_in6' | \
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29 sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1timeval\2/g' \
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30 -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1timespec\2/g' \
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31 -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1timespec\2/g' \
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32 >> ${OUT}
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33
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34 # On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
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35 # a field of type _in6_addr, but other types depend on _arpcom, so we need to
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36 # put it back.
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37 grep '^type _arpcom ' gen-sysinfo.go | \
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38 sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
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39
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40 # Same on Solaris for _mld_hdr_t.
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41 grep '^type _mld_hdr_t ' gen-sysinfo.go | \
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42 sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
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43
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44 # The time structures need special handling: we need to name the
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45 # types, so that we can cast integers to the right types when
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46 # assigning to the structures.
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47 timeval=`grep '^type _timeval ' gen-sysinfo.go`
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48 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
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49 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
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50 echo "type timeval_sec_t $timeval_sec" >> ${OUT}
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51 echo "type timeval_usec_t $timeval_usec" >> ${OUT}
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52 echo $timeval | \
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53 sed -e 's/type _timeval /type timeval /' \
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54 -e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timeval_sec_t/' \
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55 -e 's/tv_usec *[a-zA-Z0-9_]*/tv_usec timeval_usec_t/' >> ${OUT}
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56 echo >> ${OUT}
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57 echo "func (tv *timeval) set_usec(x int32) {" >> ${OUT}
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58 echo " tv.tv_usec = timeval_usec_t(x)" >> ${OUT}
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59 echo "}" >> ${OUT}
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60
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61 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
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62 if test "$timespec" = ""; then
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63 # IRIX 6.5 has __timespec instead.
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64 timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
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65 fi
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66 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
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67 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
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68 echo "type timespec_sec_t $timespec_sec" >> ${OUT}
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69 echo "type timespec_nsec_t $timespec_nsec" >> ${OUT}
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70 echo $timespec | \
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71 sed -e 's/^type ___timespec /type timespec /' \
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72 -e 's/^type _timespec /type timespec /' \
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73 -e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timespec_sec_t/' \
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74 -e 's/tv_nsec *[a-zA-Z0-9_]*/tv_nsec timespec_nsec_t/' >> ${OUT}
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75 echo >> ${OUT}
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76 echo "func (ts *timespec) set_sec(x int64) {" >> ${OUT}
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77 echo " ts.tv_sec = timespec_sec_t(x)" >> ${OUT}
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78 echo "}" >> ${OUT}
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79 echo >> ${OUT}
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80 echo "func (ts *timespec) set_nsec(x int32) {" >> ${OUT}
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81 echo " ts.tv_nsec = timespec_nsec_t(x)" >> ${OUT}
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82 echo "}" >> ${OUT}
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83
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84 # Define the epollevent struct. This needs special attention because
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85 # the C definition uses a union and is sometimes packed.
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86 if grep '^const _epoll_data_offset ' ${OUT} >/dev/null 2>&1; then
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87 val=`grep '^const _epoll_data_offset ' ${OUT} | sed -e 's/const _epoll_data_offset = \(.*\)$/\1/'`
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88 if test "$val" = "4"; then
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89 echo 'type epollevent struct { events uint32; data [8]byte }' >> ${OUT}
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90 elif test "$val" = "8"; then
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91 if test "$GOARCH" = "sparc64" -a "$GOOS" = "linux"; then
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92 echo 'type epollevent struct { events uint32; pad [4]byte; data [8]byte; _align [0]int64 }' >> ${OUT}
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93 else
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94 echo 'type epollevent struct { events uint32; pad [4]byte; data [8]byte }' >> ${OUT}
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95 fi
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96 else
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97 echo 1>&2 "unknown epoll data offset value ${val}"
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98 exit 1
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99 fi
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100 fi
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101 # Make sure EPOLLET is positive.
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102 if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go > /dev/null 2>&1; then
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103 echo "const _EPOLLETpos = _EPOLLET" >> ${OUT}
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104 else
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105 echo "const _EPOLLETpos = 0x80000000" >> ${OUT}
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106 fi
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107 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
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108 if ! grep '^const _EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
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109 echo "const _EPOLLRDHUP = 0x2000" >> ${OUT}
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110 fi
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111 if ! grep '^const _EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
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112 echo "const _EPOLL_CLOEXEC = 02000000" >> ${OUT}
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113 fi
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114
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115 # AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
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116 # which leads to a constant overflow when using O_CLOEXEC in some
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117 # go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
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118 # more present in 7.2 (_FCLOEXEC is a 32 bit value).
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119 if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
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120 sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
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121 mv ${OUT}-2 ${OUT}
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122 fi
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123
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124 # Make sure _MAP_FAILED is defined.
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125 if ! grep '^const _MAP_FAILED =' gen-sysinfo.go > /dev/null 2>&1; then
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126 echo "const _MAP_FAILED = ^uintptr(0)" >> ${OUT}
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127 fi
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128 # Make sure _MAP_ANON is defined.
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129 if ! grep '^const _MAP_ANON =' gen-sysinfo.go > /dev/null 2>&1; then
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130 if grep '^const _MAP_ANONYMOUS ' gen-sysinfo.go > /dev/null 2>&1; then
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131 echo "const _MAP_ANON = _MAP_ANONYMOUS" >> ${OUT}
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132 else
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133 echo "const _MAP_ANON = 0" >> ${OUT}
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134 fi
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135 fi
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136 # Make sure _MADV_DONTNEED is defined.
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137 if ! grep '^const _MADV_DONTNEED =' gen-sysinfo.go > /dev/null 2>&1; then
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138 echo "const _MADV_DONTNEED = 0" >> ${OUT}
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139 fi
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140 # Make sure _MADV_FREE is defined.
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141 if ! grep '^const _MADV_FREE =' gen-sysinfo.go > /dev/null 2>&1; then
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142 echo "const _MADV_FREE = 0" >> ${OUT}
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143 fi
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144 # Make sure _MADV_HUGEPAGE is defined.
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145 if ! grep '^const _MADV_HUGEPAGE =' gen-sysinfo.go > /dev/null 2>&1; then
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146 echo "const _MADV_HUGEPAGE = 0" >> ${OUT}
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147 fi
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148 # Make sure _MADV_NOHUGEPAGE is defined.
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149 if ! grep '^const _MADV_NOHUGEPAGE =' gen-sysinfo.go > /dev/null 2>&1; then
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150 echo "const _MADV_NOHUGEPAGE = 0" >> ${OUT}
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151 fi
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152
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153 # The semt structure, for Solaris.
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154 grep '^type _sem_t ' gen-sysinfo.go | \
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155 sed -e 's/_sem_t/semt/' >> ${OUT}
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156
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157 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
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158 # double is commented by -fdump-go-spec.
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159 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
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160 echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
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161 fi
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162 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
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163 echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
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164 fi
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165
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166 # The Solaris 11 Update 1 _zone_net_addr_t struct.
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167 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
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168 sed -e 's/_in6_addr/[16]byte/' \
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169 >> ${OUT}
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170
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131
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171 # The Solaris 11.4 _flow_arp_desc_t struct.
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111
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172 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
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173 sed -e 's/_in6_addr_t/[16]byte/g' \
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174 >> ${OUT}
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175
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131
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176 # The Solaris 11.4 _flow_l3_desc_t struct.
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111
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177 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
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178 sed -e 's/_in6_addr_t/[16]byte/g' \
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179 >> ${OUT}
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180
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131
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181 # The Solaris 11.3 _mac_ipaddr_t struct.
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111
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182 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
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183 sed -e 's/_in6_addr_t/[16]byte/g' \
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184 >> ${OUT}
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185
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131
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186 # The Solaris 11.3 _mactun_info_t struct.
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111
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187 grep '^type _mactun_info_t ' gen-sysinfo.go | \
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188 sed -e 's/_in6_addr_t/[16]byte/g' \
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189 >> ${OUT}
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190
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191 # The Solaris port_event_t struct.
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192 grep '^type _port_event_t ' gen-sysinfo.go | \
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193 sed -e s'/_port_event_t/portevent/' \
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194 >> ${OUT}
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195
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196 # The *BSD kevent struct.
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197 grep '^type _kevent ' gen-sysinfo.go | \
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198 sed -e s'/_kevent/keventt/' \
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199 -e 's/ udata [^;}]*/ udata *byte/' \
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200 >> ${OUT}
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