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111
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1 /* sysinfo.c -- input for mksysinfo.sh
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2
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3 Copyright 2009 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 /* This file is passed to GCC with the -fdump-go-spec option to
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8 generate a Go version of the system information. */
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9
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10 #include "config.h"
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11
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12 #include <stddef.h>
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13 #include <sys/types.h>
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14 #include <dirent.h>
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15 #include <errno.h>
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16 #include <fcntl.h>
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17 #include <ucontext.h>
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18 #include <netinet/in.h>
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19 /* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only
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20 included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE
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21 && !_XOPEN_SOURCE.
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22 <sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while
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23 <sys/ttold.h> does so unconditionally. */
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24 #ifdef __sgi__
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25 #include <sys/bsd_types.h>
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26 #include <sys/ttold.h>
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27 #endif
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28 #include <netinet/tcp.h>
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29 #if defined(HAVE_NETINET_IN_SYSTM_H)
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30 #include <netinet/in_systm.h>
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31 #endif
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32 #if defined(HAVE_NETINET_IP_H)
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33 #include <netinet/ip.h>
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34 #endif
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35 #if defined(HAVE_NETINET_IP_MROUTE_H)
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36 #include <netinet/ip_mroute.h>
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37 #endif
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38 #if defined(HAVE_NETINET_IF_ETHER_H)
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39 #include <netinet/if_ether.h>
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40 #endif
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41 #include <signal.h>
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42 #include <sys/ioctl.h>
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43 #include <termios.h>
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44 #if defined(HAVE_SYSCALL_H)
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45 #include <syscall.h>
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46 #endif
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47 #if defined(HAVE_SYS_SYSCALL_H)
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48 #include <sys/syscall.h>
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49 #endif
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50 #if defined(HAVE_SYS_EPOLL_H)
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51 #include <sys/epoll.h>
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52 #endif
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53 #if defined(HAVE_SYS_EVENT_H)
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54 #include <sys/event.h>
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55 #endif
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56 #if defined(HAVE_SYS_FILE_H)
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57 #include <sys/file.h>
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58 #endif
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59 #if defined(HAVE_SYS_MMAN_H)
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60 #include <sys/mman.h>
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61 #endif
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62 #if defined(HAVE_SYS_PRCTL_H)
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63 #include <sys/prctl.h>
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64 #endif
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65 #if defined(HAVE_SYS_PTRACE_H)
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66 #include <sys/ptrace.h>
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67 #endif
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68 #include <sys/resource.h>
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69 #include <sys/uio.h>
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70 #include <sys/socket.h>
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71 #include <sys/stat.h>
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72 #include <sys/time.h>
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73 #include <sys/times.h>
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74 #include <sys/wait.h>
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75 #include <sys/un.h>
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76 #if defined(HAVE_SYS_USER_H)
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77 #include <sys/user.h>
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78 #endif
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79 #if defined(HAVE_SYS_UTSNAME_H)
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80 #include <sys/utsname.h>
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81 #endif
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82 #if defined(HAVE_SYS_SELECT_H)
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83 #include <sys/select.h>
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84 #endif
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85 #include <time.h>
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86 #include <unistd.h>
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87 #include <netdb.h>
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88 #include <pwd.h>
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89 #include <grp.h>
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90 #if defined(HAVE_LINUX_FILTER_H)
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91 #include <linux/filter.h>
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92 #endif
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93 #if defined(HAVE_LINUX_IF_ADDR_H)
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94 #include <linux/if_addr.h>
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95 #endif
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96 #if defined(HAVE_LINUX_IF_ETHER_H)
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97 #include <linux/if_ether.h>
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98 #endif
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99 #if defined(HAVE_LINUX_IF_TUN_H)
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100 #include <linux/if_tun.h>
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101 #endif
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102 #if defined(HAVE_LINUX_NETLINK_H)
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103 #include <linux/netlink.h>
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104 #endif
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105 #if defined(HAVE_LINUX_PTRACE_H)
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106 /* Avoid https://sourceware.org/bugzilla/show_bug.cgi?id=762 . */
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107 #define ia64_fpreg pt_ia64_fpreg
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108 #define pt_all_user_regs pt_ia64_all_user_regs
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109 /* Avoid redefinition of ptrace_peeksiginfo from <sys/ptrace.h>.
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110 https://gcc.gnu.org/PR81324 . */
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111 #define ptrace_peeksiginfo_args ignore_ptrace_peeksiginfo_args
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112 #include <linux/ptrace.h>
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113 #undef ia64_fpreg
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114 #undef pt_all_user_regs
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115 #undef ptrace_peeksiginfo_args
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116 #endif
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117 #if defined(HAVE_LINUX_RTNETLINK_H)
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118 #include <linux/rtnetlink.h>
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119 #endif
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120 #if defined(HAVE_NET_IF_H)
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121 #include <net/if.h>
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122 #endif
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123 #if defined(HAVE_NET_IF_ARP_H)
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124 #include <net/if_arp.h>
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125 #endif
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126 #if defined(HAVE_NET_ROUTE_H)
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127 #include <net/route.h>
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128 #endif
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129 #if defined (HAVE_NETPACKET_PACKET_H)
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130 #include <netpacket/packet.h>
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131 #endif
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132 #if defined(HAVE_SYS_MOUNT_H)
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133 #include <sys/mount.h>
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134 #endif
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135 #if defined(HAVE_SYS_VFS_H)
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136 #include <sys/vfs.h>
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137 #endif
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138 #if defined(HAVE_STATFS_H)
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139 #include <sys/statfs.h>
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140 #endif
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141 #if defined(HAVE_SYS_TIMEX_H)
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142 #include <sys/timex.h>
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143 #endif
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144 #if defined(HAVE_SYS_SYSINFO_H)
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145 #include <sys/sysinfo.h>
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146 #endif
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147 #if defined(HAVE_UTIME_H)
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148 #include <utime.h>
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149 #endif
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150 #if defined(HAVE_LINUX_ETHER_H)
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151 #include <linux/ether.h>
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152 #endif
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153 #if defined(HAVE_LINUX_FS_H)
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154 #include <linux/fs.h>
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155 #endif
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156 #if defined(HAVE_LINUX_REBOOT_H)
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157 #include <linux/reboot.h>
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158 #endif
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159 #if defined(HAVE_SYS_INOTIFY_H)
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160 #include <sys/inotify.h>
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161 #endif
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162 #if defined(HAVE_NETINET_ICMP6_H)
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163 #include <netinet/icmp6.h>
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164 #endif
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165 #if defined(HAVE_SCHED_H)
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166 #include <sched.h>
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167 #endif
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168 #if defined(HAVE_SEMAPHORE_H)
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169 #include <semaphore.h>
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170 #endif
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171 #if defined(HAVE_PORT_H)
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172 #include <port.h>
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173 #endif
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174
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175 #ifdef USE_LIBFFI
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176 #include "ffi.h"
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177 #endif
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178
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179 /* Constants that may only be defined as expressions on some systems,
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180 expressions too complex for -fdump-go-spec to handle. These are
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181 handled specially below. */
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182 enum {
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183 #ifdef TIOCGWINSZ
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184 TIOCGWINSZ_val = TIOCGWINSZ,
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185 #endif
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186 #ifdef TIOCSWINSZ
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187 TIOCSWINSZ_val = TIOCSWINSZ,
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188 #endif
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189 #ifdef TIOCNOTTY
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190 TIOCNOTTY_val = TIOCNOTTY,
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191 #endif
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192 #ifdef TIOCSCTTY
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193 TIOCSCTTY_val = TIOCSCTTY,
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194 #endif
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195 #ifdef TIOCGPGRP
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196 TIOCGPGRP_val = TIOCGPGRP,
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197 #endif
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198 #ifdef TIOCSPGRP
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199 TIOCSPGRP_val = TIOCSPGRP,
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200 #endif
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201 #ifdef TIOCGPTN
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202 TIOCGPTN_val = TIOCGPTN,
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203 #endif
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204 #ifdef TIOCSPTLCK
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205 TIOCSPTLCK_val = TIOCSPTLCK,
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206 #endif
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207 #ifdef TIOCGDEV
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208 TIOCGDEV_val = TIOCGDEV,
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209 #endif
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210 #ifdef TIOCSIG
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211 TIOCSIG_val = TIOCSIG,
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212 #endif
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213 #ifdef TCGETS
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214 TCGETS_val = TCGETS,
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215 #endif
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216 #ifdef TCSETS
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217 TCSETS_val = TCSETS,
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218 #endif
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219 #ifdef TUNSETIFF
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220 TUNSETIFF_val = TUNSETIFF,
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221 #endif
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222 #ifdef TUNSETNOCSUM
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223 TUNSETNOCSUM_val = TUNSETNOCSUM,
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224 #endif
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225 #ifdef TUNSETDEBUG
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226 TUNSETDEBUG_val = TUNSETDEBUG,
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227 #endif
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228 #ifdef TUNSETPERSIST
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229 TUNSETPERSIST_val = TUNSETPERSIST,
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230 #endif
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231 #ifdef TUNSETOWNER
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232 TUNSETOWNER_val = TUNSETOWNER,
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233 #endif
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234 #ifdef TUNSETLINK
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235 TUNSETLINK_val = TUNSETLINK,
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236 #endif
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237 #ifdef TUNSETGROUP
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238 TUNSETGROUP_val = TUNSETGROUP,
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239 #endif
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240 #ifdef TUNGETFEATURES
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241 TUNGETFEATURES_val = TUNGETFEATURES,
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242 #endif
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243 #ifdef TUNSETOFFLOAD
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244 TUNSETOFFLOAD_val = TUNSETOFFLOAD,
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245 #endif
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246 #ifdef TUNSETTXFILTER
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247 TUNSETTXFILTER_val = TUNSETTXFILTER,
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248 #endif
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249 #ifdef TUNGETIFF
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250 TUNGETIFF_val = TUNGETIFF,
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251 #endif
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252 #ifdef TUNGETSNDBUF
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253 TUNGETSNDBUF_val = TUNGETSNDBUF,
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254 #endif
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255 #ifdef TUNSETSNDBUF
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256 TUNSETSNDBUF_val = TUNSETSNDBUF,
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257 #endif
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258 #ifdef TUNATTACHFILTER
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259 TUNATTACHFILTER_val = TUNATTACHFILTER,
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260 #endif
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261 #ifdef TUNDETACHFILTER
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262 TUNDETACHFILTER_val = TUNDETACHFILTER,
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263 #endif
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264 #ifdef TUNGETVNETHDRSZ
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265 TUNGETVNETHDRSZ_val = TUNGETVNETHDRSZ,
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266 #endif
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267 #ifdef TUNSETVNETHDRSZ
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268 TUNSETVNETHDRSZ_val = TUNSETVNETHDRSZ,
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269 #endif
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270 #ifdef TUNSETQUEUE
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271 TUNSETQUEUE_val = TUNSETQUEUE,
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272 #endif
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273 #ifdef TUNSETIFINDEX
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274 TUNSETIFINDEX_val = TUNSETIFINDEX,
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275 #endif
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276 #ifdef TUNGETFILTER
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277 TUNGETFILTER_val = TUNGETFILTER,
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278 #endif
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279 #ifdef NLA_HDRLEN
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280 NLA_HDRLEN_val = NLA_HDRLEN,
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281 #endif
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282 };
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283
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284 #if defined(HAVE_SYS_EPOLL_H)
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285 enum {
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286 epoll_data_offset = offsetof(struct epoll_event, data)
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287 };
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288 #endif
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131
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289
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290 // The following section introduces explicit references to types and
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291 // constants of interest to support bootstrapping libgo using a
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292 // compiler that doesn't support -fdump-go-spec (e.g., clang), via
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293 // DWARF-based tools. This process is made more difficult due to the
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294 // fact that clang tries hard to omit types/constants from DWARF if it
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295 // can't find explicit references to them, so here we make sure that
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296 // key items are mentioned in ways that will force them into the
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297 // generated DWARF.
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298
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299 #if defined(__clang__)
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300
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301 // Make a reference to a type
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302 #define TREF(typ) typ typ ## ref
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303
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304 // Make a reference to an opaque type
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305 #define OTREF(typ) typ *typ ## ref
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306
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307 // Make a reference to a struct tag
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308 #define SREF(stag) struct stag stag ## ref
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309
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310 // Make a reference to an enum literal
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311 #define EREF(elit) unsigned elit ## fn(unsigned x) { return x == elit ? 1 : 0; }
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312
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313 //......................................................................
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314
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315 // From dirent.h
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316 SREF(dirent);
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317 SREF(dirent64);
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318 OTREF(DIR);
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319
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320 // From fcntl.h
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321 SREF(flock);
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322 SREF(flock64);
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323
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324 // From ffi headers
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325 SREF(_ffi_type);
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326 TREF(ffi_cif);
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327 TREF(ffi_abi);
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328 TREF(ffi_status);
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329 EREF(FFI_OK);
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330
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331 // From grp.h
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332 SREF(group);
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333
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334 #if defined(HAVE_LINUX_FILTER_H)
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335 // From linux/filter.h
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336 SREF(sock_filter);
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337 SREF(sock_fprog);
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338 #endif
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339
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340 // From linux/if.h
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341 EREF(IFF_UP);
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342
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343 #if defined(HAVE_LINUX_IF_ADDR_H)
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344 // From linux/if_addr.h
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345 SREF(ifaddrmsg);
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346 EREF(IFA_ADDRESS);
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347 #endif
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348
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349 #if defined(HAVE_LINUX_RTNETLINK_H)
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350 // From linux/if_link.h
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351 EREF(IFLA_ADDRESS);
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352 #endif
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353
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354 // From in.h, in6.h, icmp6.h
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355 SREF(ip_mreq);
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356 SREF(ip_mreqn);
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357 SREF(ipv6_mreq);
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358 SREF(ip6_mtuinfo);
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359 SREF(icmp6_filter);
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360 SREF(in_pktinfo);
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361 EREF(IPPROTO_TCP);
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362
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363 #if defined(HAVE_LINUX_RTNETLINK_H)
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364 // From linux/rtnetlink.h
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365 SREF(rtgenmsg);
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366 SREF(rtmsg);
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367 SREF(ifinfomsg);
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368 SREF(rtattr);
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369 SREF(rtnexthop);
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370 EREF(RTM_BASE);
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371 EREF(RTN_UNSPEC);
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372 #endif
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373
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374 // From netdb.h
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375 SREF(addrinfo);
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376
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377 // From netlink.h
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378 SREF(nlattr);
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379 SREF(nlmsgerr);
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380
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381 // From pthread.h and related
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382 TREF(pthread_attr_t);
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383 TREF(pthread_t);
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384 TREF(pthread_mutex_t);
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385 TREF(pthread_mutexattr_t);
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386
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387 // From pwd.h
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388 SREF(passwd);
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389
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390 // From signal.h and related
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391 TREF(sigset_t);
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392 TREF(siginfo_t);
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393 TREF(stack_t);
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394 SREF(sigaction);
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395 SREF(sigstack);
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396 EREF(SI_USER);
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397 EREF(FPE_INTOVF);
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398 EREF(BUS_ADRALN);
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399 EREF(SS_ONSTACK);
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400 EREF(SEGV_MAPERR);
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401
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402 // From stat.h
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403 SREF(stat64);
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404
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405 // From statfs.h
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406 SREF(statfs);
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407 SREF(statfs64);
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408
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409 // From sysinfo.h
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410 SREF(sysinfo);
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411
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412 // From <sys/epoll.h>
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413 #if defined(HAVE_SYS_EPOLL_H)
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414 SREF(epoll_event);
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415 EREF(EPOLLIN);
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416 EREF(epoll_data_offset);
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417 #endif
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418
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419 #if defined(HAVE_SYS_MOUNT_H)
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420 // From sys/mount.h
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421 EREF(MS_PRIVATE);
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422 EREF(MNT_FORCE);
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423 #endif
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424
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425 #if defined(HAVE_SYS_PTRACE_H)
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426 // From <sys/ptrace.h>
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145
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427 #if defined (__aarch64__)
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428 SREF(user_pt_regs);
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429 #else
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131
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430 SREF(pt_regs);
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145
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431 #endif
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131
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432 EREF(PTRACE_PEEKTEXT);
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433 #endif
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434
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435 // From sys/resource.h
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436 SREF(rusage);
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437 SREF(rlimit64);
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438 EREF(RLIMIT_NOFILE);
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439 EREF(PRIO_USER);
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440
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441 // From sys/select.h
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442 TREF(fd_set);
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443
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444 // From sys/socket.h
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445 SREF(msghdr);
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446 SREF(cmsghdr);
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447 SREF(ucred);
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448 EREF(MSG_OOB);
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449 EREF(SCM_RIGHTS);
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450 EREF(SOCK_RAW);
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451 EREF(SHUT_RD);
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452
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453 // From sys/time.h and sys/times.h
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454 SREF(timespec);
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455 SREF(timeval);
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456 SREF(itimerval);
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457 SREF(tms);
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458 EREF(ITIMER_PROF);
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459
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460 #if defined(HAVE_SYS_TIMEX_H)
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461 // From sys/timex.h
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462 SREF(timex);
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463 #endif
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464
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465 // From sys/types.h
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466 TREF(pid_t);
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467 TREF(off_t);
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468 TREF(loff_t);
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469 TREF(size_t);
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470 TREF(ssize_t);
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471 TREF(mode_t);
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472 TREF(dev_t);
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473 TREF(time_t);
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474
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475 // From sys/ucontext.h
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476 TREF(ucontext_t);
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477
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478 #if defined(HAVE_SYS_USER_H)
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479 // From sys/user.h
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480 SREF(user_regs_struct);
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481 #endif
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482
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483 #if defined(HAVE_SYS_UTSNAME_H)
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484 // From sys/utsname.h
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485 SREF(utsname);
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486 #endif
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487
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488 // From termios.h
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489 SREF(termios);
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490
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491 // From uio.h
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492 SREF(iovec);
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493
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494 // From utime.h
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495 SREF(utimbuf);
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496
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497 // From unistd.h
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498 EREF(_PC_NAME_MAX);
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499 EREF(_SC_GETPW_R_SIZE_MAX);
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500
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501 #endif // clang
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