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111
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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 >> ${OUT}
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33
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145
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34 # The C long type, needed because that is the type that ptrace returns.
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35 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
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36 if test "$sizeof_long" = "4"; then
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37 echo "type _C_long int32" >> ${OUT}
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38 echo "type _C_ulong uint32" >> ${OUT}
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39 elif test "$sizeof_long" = "8"; then
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40 echo "type _C_long int64" >> ${OUT}
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41 echo "type _C_ulong uint64" >> ${OUT}
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42 else
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43 echo 1>&2 "mkrsysinfo.sh: could not determine size of long (got $sizeof_long)"
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44 exit 1
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45 fi
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46
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111
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47 # On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
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48 # a field of type _in6_addr, but other types depend on _arpcom, so we need to
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49 # put it back.
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50 grep '^type _arpcom ' gen-sysinfo.go | \
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51 sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
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52
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53 # Same on Solaris for _mld_hdr_t.
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54 grep '^type _mld_hdr_t ' gen-sysinfo.go | \
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55 sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
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56
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57 # The time structures need special handling: we need to name the
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58 # types, so that we can cast integers to the right types when
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59 # assigning to the structures.
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60 timeval=`grep '^type _timeval ' gen-sysinfo.go`
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61 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
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62 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
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63 echo "type timeval_sec_t $timeval_sec" >> ${OUT}
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64 echo "type timeval_usec_t $timeval_usec" >> ${OUT}
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65 echo $timeval | \
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66 sed -e 's/type _timeval /type timeval /' \
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67 -e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timeval_sec_t/' \
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68 -e 's/tv_usec *[a-zA-Z0-9_]*/tv_usec timeval_usec_t/' >> ${OUT}
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69 echo >> ${OUT}
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70 echo "func (tv *timeval) set_usec(x int32) {" >> ${OUT}
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71 echo " tv.tv_usec = timeval_usec_t(x)" >> ${OUT}
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72 echo "}" >> ${OUT}
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73
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74 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
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75 if test "$timespec" = ""; then
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76 # IRIX 6.5 has __timespec instead.
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77 timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
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78 fi
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79 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
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80 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
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81 echo "type timespec_sec_t $timespec_sec" >> ${OUT}
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82 echo "type timespec_nsec_t $timespec_nsec" >> ${OUT}
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83 echo $timespec | \
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84 sed -e 's/^type ___timespec /type timespec /' \
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85 -e 's/^type _timespec /type timespec /' \
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86 -e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timespec_sec_t/' \
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87 -e 's/tv_nsec *[a-zA-Z0-9_]*/tv_nsec timespec_nsec_t/' >> ${OUT}
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88 echo >> ${OUT}
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145
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89 echo "func (ts *timespec) setNsec(ns int64) {" >> ${OUT}
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90 echo " ts.tv_sec = timespec_sec_t(ns / 1e9)" >> ${OUT}
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91 echo " ts.tv_nsec = timespec_nsec_t(ns % 1e9)" >> ${OUT}
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111
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92 echo "}" >> ${OUT}
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93 echo >> ${OUT}
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94
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95 # Define the epollevent struct. This needs special attention because
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96 # the C definition uses a union and is sometimes packed.
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97 if grep '^const _epoll_data_offset ' ${OUT} >/dev/null 2>&1; then
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98 val=`grep '^const _epoll_data_offset ' ${OUT} | sed -e 's/const _epoll_data_offset = \(.*\)$/\1/'`
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99 if test "$val" = "4"; then
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100 echo 'type epollevent struct { events uint32; data [8]byte }' >> ${OUT}
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101 elif test "$val" = "8"; then
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102 if test "$GOARCH" = "sparc64" -a "$GOOS" = "linux"; then
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103 echo 'type epollevent struct { events uint32; pad [4]byte; data [8]byte; _align [0]int64 }' >> ${OUT}
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104 else
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105 echo 'type epollevent struct { events uint32; pad [4]byte; data [8]byte }' >> ${OUT}
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106 fi
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107 else
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108 echo 1>&2 "unknown epoll data offset value ${val}"
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109 exit 1
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110 fi
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111 fi
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112 # Make sure EPOLLET is positive.
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113 if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go > /dev/null 2>&1; then
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114 echo "const _EPOLLETpos = _EPOLLET" >> ${OUT}
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115 else
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116 echo "const _EPOLLETpos = 0x80000000" >> ${OUT}
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117 fi
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118 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
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119 if ! grep '^const _EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
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120 echo "const _EPOLLRDHUP = 0x2000" >> ${OUT}
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121 fi
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122 if ! grep '^const _EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
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123 echo "const _EPOLL_CLOEXEC = 02000000" >> ${OUT}
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124 fi
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125
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126 # AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
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127 # which leads to a constant overflow when using O_CLOEXEC in some
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128 # go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
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129 # more present in 7.2 (_FCLOEXEC is a 32 bit value).
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130 if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
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131 sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
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132 mv ${OUT}-2 ${OUT}
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133 fi
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134
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135 # Make sure _MAP_FAILED is defined.
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136 if ! grep '^const _MAP_FAILED =' gen-sysinfo.go > /dev/null 2>&1; then
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137 echo "const _MAP_FAILED = ^uintptr(0)" >> ${OUT}
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138 fi
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139 # Make sure _MAP_ANON is defined.
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140 if ! grep '^const _MAP_ANON =' gen-sysinfo.go > /dev/null 2>&1; then
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141 if grep '^const _MAP_ANONYMOUS ' gen-sysinfo.go > /dev/null 2>&1; then
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142 echo "const _MAP_ANON = _MAP_ANONYMOUS" >> ${OUT}
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143 else
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144 echo "const _MAP_ANON = 0" >> ${OUT}
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145 fi
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146 fi
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147 # Make sure _MADV_DONTNEED is defined.
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148 if ! grep '^const _MADV_DONTNEED =' gen-sysinfo.go > /dev/null 2>&1; then
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149 echo "const _MADV_DONTNEED = 0" >> ${OUT}
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150 fi
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151 # Make sure _MADV_FREE is defined.
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152 if ! grep '^const _MADV_FREE =' gen-sysinfo.go > /dev/null 2>&1; then
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153 echo "const _MADV_FREE = 0" >> ${OUT}
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154 fi
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155 # Make sure _MADV_HUGEPAGE is defined.
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156 if ! grep '^const _MADV_HUGEPAGE =' gen-sysinfo.go > /dev/null 2>&1; then
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157 echo "const _MADV_HUGEPAGE = 0" >> ${OUT}
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158 fi
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159 # Make sure _MADV_NOHUGEPAGE is defined.
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160 if ! grep '^const _MADV_NOHUGEPAGE =' gen-sysinfo.go > /dev/null 2>&1; then
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161 echo "const _MADV_NOHUGEPAGE = 0" >> ${OUT}
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162 fi
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163
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164 # The semt structure, for Solaris.
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165 grep '^type _sem_t ' gen-sysinfo.go | \
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166 sed -e 's/_sem_t/semt/' >> ${OUT}
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167
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168 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
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169 # double is commented by -fdump-go-spec.
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170 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
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171 echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
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172 fi
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173 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
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174 echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
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175 fi
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176
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177 # The Solaris 11 Update 1 _zone_net_addr_t struct.
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178 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
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179 sed -e 's/_in6_addr/[16]byte/' \
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180 >> ${OUT}
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181
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131
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182 # The Solaris 11.4 _flow_arp_desc_t struct.
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111
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183 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
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184 sed -e 's/_in6_addr_t/[16]byte/g' \
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185 >> ${OUT}
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186
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131
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187 # The Solaris 11.4 _flow_l3_desc_t struct.
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111
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188 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
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189 sed -e 's/_in6_addr_t/[16]byte/g' \
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190 >> ${OUT}
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191
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131
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192 # The Solaris 11.3 _mac_ipaddr_t struct.
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111
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193 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
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194 sed -e 's/_in6_addr_t/[16]byte/g' \
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195 >> ${OUT}
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196
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131
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197 # The Solaris 11.3 _mactun_info_t struct.
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111
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198 grep '^type _mactun_info_t ' gen-sysinfo.go | \
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199 sed -e 's/_in6_addr_t/[16]byte/g' \
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200 >> ${OUT}
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201
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202 # The Solaris port_event_t struct.
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203 grep '^type _port_event_t ' gen-sysinfo.go | \
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204 sed -e s'/_port_event_t/portevent/' \
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205 >> ${OUT}
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206
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207 # The *BSD kevent struct.
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208 grep '^type _kevent ' gen-sysinfo.go | \
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209 sed -e s'/_kevent/keventt/' \
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210 -e 's/ udata [^;}]*/ udata *byte/' \
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211 >> ${OUT}
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145
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212
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213 # Type 'uint128' is needed in a couple of type definitions on arm64,such
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214 # as _user_fpsimd_struct, _elf_fpregset_t, etc.
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215 if ! grep '^type uint128' ${OUT} > /dev/null 2>&1; then
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216 echo "type uint128 [16]byte" >> ${OUT}
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217 fi
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