github.com/megatontech/mynoteforgo@v0.0.0-20200507084910-5d0c6ea6e890/源码/syscall/mkerrors.sh (about) 1 #!/usr/bin/env bash 2 # Copyright 2009 The Go Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style 4 # license that can be found in the LICENSE file. 5 6 # Generate Go code listing errors and other #defined constant 7 # values (ENAMETOOLONG etc.), by asking the preprocessor 8 # about the definitions. 9 10 unset LANG 11 export LC_ALL=C 12 export LC_CTYPE=C 13 14 CC=${CC:-gcc} 15 16 if [[ "$GOOS" -eq "solaris" ]]; then 17 # Assumes GNU versions of utilities in PATH. 18 export PATH=/usr/gnu/bin:$PATH 19 fi 20 21 uname=$(uname) 22 23 includes_AIX=' 24 #include <net/if.h> 25 #include <net/netopt.h> 26 #include <netinet/ip_mroute.h> 27 #include <sys/mman.h> 28 #include <sys/protosw.h> 29 #include <sys/ptrace.h> 30 #include <sys/stropts.h> 31 ' 32 33 includes_Darwin=' 34 #define _DARWIN_C_SOURCE 35 #define KERNEL 36 #define _DARWIN_USE_64_BIT_INODE 37 #include <sys/types.h> 38 #include <sys/event.h> 39 #include <sys/ptrace.h> 40 #include <sys/socket.h> 41 #include <sys/sockio.h> 42 #include <sys/sysctl.h> 43 #include <sys/mman.h> 44 #include <sys/wait.h> 45 #include <net/bpf.h> 46 #include <net/if.h> 47 #include <net/if_types.h> 48 #include <net/route.h> 49 #include <netinet/in.h> 50 #include <netinet/ip.h> 51 #include <netinet/ip_mroute.h> 52 #include <termios.h> 53 ' 54 55 includes_DragonFly=' 56 #include <sys/types.h> 57 #include <sys/event.h> 58 #include <sys/socket.h> 59 #include <sys/sockio.h> 60 #include <sys/sysctl.h> 61 #include <sys/mman.h> 62 #include <sys/wait.h> 63 #include <sys/ioctl.h> 64 #include <net/bpf.h> 65 #include <net/if.h> 66 #include <net/if_types.h> 67 #include <net/route.h> 68 #include <netinet/in.h> 69 #include <termios.h> 70 #include <netinet/ip.h> 71 #include <net/ip_mroute/ip_mroute.h> 72 ' 73 74 includes_FreeBSD=' 75 #include <sys/param.h> 76 #include <sys/types.h> 77 #include <sys/event.h> 78 #include <sys/socket.h> 79 #include <sys/sockio.h> 80 #include <sys/sysctl.h> 81 #include <sys/mman.h> 82 #include <sys/wait.h> 83 #include <sys/ioctl.h> 84 #include <net/bpf.h> 85 #include <net/if.h> 86 #include <net/if_types.h> 87 #include <net/route.h> 88 #include <netinet/in.h> 89 #include <termios.h> 90 #include <netinet/ip.h> 91 #include <netinet/ip_mroute.h> 92 93 #if __FreeBSD__ >= 10 94 #define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10 95 #undef SIOCAIFADDR 96 #define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data 97 #undef SIOCSIFPHYADDR 98 #define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data 99 #endif 100 ' 101 102 includes_Linux=' 103 #define _LARGEFILE_SOURCE 104 #define _LARGEFILE64_SOURCE 105 #ifndef __LP64__ 106 #define _FILE_OFFSET_BITS 64 107 #endif 108 #define _GNU_SOURCE 109 110 #include <bits/sockaddr.h> 111 #include <sys/epoll.h> 112 #include <sys/inotify.h> 113 #include <sys/ioctl.h> 114 #include <sys/mman.h> 115 #include <sys/mount.h> 116 #include <sys/prctl.h> 117 #include <sys/stat.h> 118 #include <sys/types.h> 119 #include <sys/time.h> 120 #include <sys/socket.h> 121 #include <linux/if.h> 122 #include <linux/if_arp.h> 123 #include <linux/if_ether.h> 124 #include <linux/if_tun.h> 125 #include <linux/if_packet.h> 126 #include <linux/if_addr.h> 127 #include <linux/filter.h> 128 #include <linux/netlink.h> 129 #include <linux/reboot.h> 130 #include <linux/rtnetlink.h> 131 #include <linux/ptrace.h> 132 #include <linux/sched.h> 133 #include <linux/wait.h> 134 #include <linux/icmpv6.h> 135 #include <net/route.h> 136 #include <termios.h> 137 138 #ifndef MSG_FASTOPEN 139 #define MSG_FASTOPEN 0x20000000 140 #endif 141 142 #ifndef PTRACE_GETREGS 143 #define PTRACE_GETREGS 0xc 144 #endif 145 146 #ifndef PTRACE_SETREGS 147 #define PTRACE_SETREGS 0xd 148 #endif 149 ' 150 151 includes_NetBSD=' 152 #include <sys/types.h> 153 #include <sys/param.h> 154 #include <sys/event.h> 155 #include <sys/mman.h> 156 #include <sys/socket.h> 157 #include <sys/sockio.h> 158 #include <sys/sysctl.h> 159 #include <sys/termios.h> 160 #include <sys/ttycom.h> 161 #include <sys/wait.h> 162 #include <net/bpf.h> 163 #include <net/if.h> 164 #include <net/if_types.h> 165 #include <net/route.h> 166 #include <netinet/in.h> 167 #include <netinet/in_systm.h> 168 #include <netinet/ip.h> 169 #include <netinet/ip_mroute.h> 170 #include <netinet/if_ether.h> 171 172 // Needed since <sys/param.h> refers to it... 173 #define schedppq 1 174 ' 175 176 includes_OpenBSD=' 177 #include <sys/types.h> 178 #include <sys/param.h> 179 #include <sys/event.h> 180 #include <sys/mman.h> 181 #include <sys/socket.h> 182 #include <sys/sockio.h> 183 #include <sys/sysctl.h> 184 #include <sys/termios.h> 185 #include <sys/ttycom.h> 186 #include <sys/wait.h> 187 #include <net/bpf.h> 188 #include <net/if.h> 189 #include <net/if_types.h> 190 #include <net/if_var.h> 191 #include <net/route.h> 192 #include <netinet/in.h> 193 #include <netinet/in_systm.h> 194 #include <netinet/ip.h> 195 #include <netinet/ip_mroute.h> 196 #include <netinet/if_ether.h> 197 #include <net/if_bridge.h> 198 199 // We keep some constants not supported in OpenBSD 5.5 and beyond for 200 // the promise of compatibility. 201 #define EMUL_ENABLED 0x1 202 #define EMUL_NATIVE 0x2 203 #define IPV6_FAITH 0x1d 204 #define IPV6_OPTIONS 0x1 205 #define IPV6_RTHDR_STRICT 0x1 206 #define IPV6_SOCKOPT_RESERVED1 0x3 207 #define SIOCGIFGENERIC 0xc020693a 208 #define SIOCSIFGENERIC 0x80206939 209 #define WALTSIG 0x4 210 ' 211 212 includes_SunOS=' 213 #include <limits.h> 214 #include <sys/types.h> 215 #include <sys/socket.h> 216 #include <sys/sockio.h> 217 #include <sys/mman.h> 218 #include <sys/wait.h> 219 #include <sys/ioctl.h> 220 #include <net/bpf.h> 221 #include <net/if.h> 222 #include <net/if_arp.h> 223 #include <net/if_types.h> 224 #include <net/route.h> 225 #include <netinet/in.h> 226 #include <termios.h> 227 #include <netinet/ip.h> 228 #include <netinet/ip_mroute.h> 229 ' 230 231 includes=' 232 #include <sys/types.h> 233 #include <sys/file.h> 234 #include <fcntl.h> 235 #include <dirent.h> 236 #include <sys/socket.h> 237 #include <netinet/in.h> 238 #include <netinet/ip.h> 239 #include <netinet/ip6.h> 240 #include <netinet/tcp.h> 241 #include <errno.h> 242 #include <sys/signal.h> 243 #include <signal.h> 244 #include <sys/resource.h> 245 ' 246 247 ccflags="$@" 248 249 # Write go tool cgo -godefs input. 250 ( 251 echo package syscall 252 echo 253 echo '/*' 254 indirect="includes_$(uname)" 255 echo "${!indirect} $includes" 256 echo '*/' 257 echo 'import "C"' 258 echo 259 echo 'const (' 260 261 # The gcc command line prints all the #defines 262 # it encounters while processing the input 263 echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags | 264 awk ' 265 $1 != "#define" || $2 ~ /\(/ || $3 == "" {next} 266 267 $2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers 268 $2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next} 269 $2 ~ /^(SCM_SRCRT)$/ {next} 270 $2 ~ /^(MAP_FAILED)$/ {next} 271 $2 ~ /^ELF_.*$/ {next} # <asm/elf.h> contains ELF_ARCH, etc. 272 273 $2 !~ /^ETH_/ && 274 $2 !~ /^EPROC_/ && 275 $2 !~ /^EQUIV_/ && 276 $2 !~ /^EXPR_/ && 277 $2 ~ /^E[A-Z0-9_]+$/ || 278 $2 ~ /^B[0-9_]+$/ || 279 $2 ~ /^V[A-Z0-9]+$/ || 280 $2 ~ /^CS[A-Z0-9]/ || 281 $2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ || 282 $2 ~ /^IGN/ || 283 $2 ~ /^IX(ON|ANY|OFF)$/ || 284 $2 ~ /^IN(LCR|PCK)$/ || 285 $2 ~ /(^FLU?SH)|(FLU?SH$)/ || 286 $2 ~ /^C(LOCAL|READ)$/ || 287 $2 == "BRKINT" || 288 $2 == "HUPCL" || 289 $2 == "PENDIN" || 290 $2 == "TOSTOP" || 291 $2 ~ /^PAR/ || 292 $2 ~ /^SIG[^_]/ || 293 $2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ || 294 $2 ~ /^IN_/ || 295 $2 ~ /^LOCK_(SH|EX|NB|UN)$/ || 296 $2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ || 297 $2 == "ICMPV6_FILTER" || 298 $2 == "SOMAXCONN" || 299 $2 == "NAME_MAX" || 300 $2 == "IFNAMSIZ" || 301 $2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ || 302 $2 ~ /^SYSCTL_VERS/ || 303 $2 ~ /^(MS|MNT)_/ || 304 $2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ || 305 $2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ || 306 $2 ~ /^LINUX_REBOOT_CMD_/ || 307 $2 ~ /^LINUX_REBOOT_MAGIC[12]$/ || 308 $2 !~ "NLA_TYPE_MASK" && 309 $2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ || 310 $2 ~ /^SIOC/ || 311 $2 ~ /^TIOC/ || 312 $2 !~ "RTF_BITS" && 313 $2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ || 314 $2 ~ /^BIOC/ || 315 $2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ || 316 $2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ || 317 $2 ~ /^PRIO_(PROCESS|PGRP|USER)/ || 318 $2 ~ /^CLONE_[A-Z_]+/ || 319 $2 !~ /^(BPF_TIMEVAL)$/ && 320 $2 ~ /^(BPF|DLT)_/ || 321 $2 !~ "WMESGLEN" && 322 $2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)} 323 $2 ~ /^__WCOREFLAG$/ {next} 324 $2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)} 325 326 {next} 327 ' | sort 328 329 echo ')' 330 ) >_const.go 331 332 # Pull out the error names for later. 333 errors=$( 334 echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags | 335 awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' | 336 sort 337 ) 338 339 # Pull out the signal names for later. 340 signals=$( 341 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags | 342 awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' | 343 egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' | 344 sort 345 ) 346 347 # Again, writing regexps to a file. 348 echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags | 349 awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' | 350 sort >_error.grep 351 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags | 352 awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' | 353 egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' | 354 sort >_signal.grep 355 356 echo '// mkerrors.sh' "$@" 357 echo '// Code generated by the command above; DO NOT EDIT.' 358 echo 359 go tool cgo -godefs -- "$@" _const.go >_error.out 360 cat _error.out | grep -vf _error.grep | grep -vf _signal.grep 361 echo 362 echo '// Errors' 363 echo 'const (' 364 cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= Errno(\1)/' 365 echo ')' 366 367 echo 368 echo '// Signals' 369 echo 'const (' 370 cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= Signal(\1)/' 371 echo ')' 372 373 # Run C program to print error and syscall strings. 374 ( 375 echo -E " 376 #include <stdio.h> 377 #include <stdlib.h> 378 #include <errno.h> 379 #include <ctype.h> 380 #include <string.h> 381 #include <signal.h> 382 383 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 384 385 enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below 386 387 int errors[] = { 388 " 389 for i in $errors 390 do 391 echo -E ' '$i, 392 done 393 394 echo -E " 395 }; 396 397 int signals[] = { 398 " 399 for i in $signals 400 do 401 echo -E ' '$i, 402 done 403 404 # Use -E because on some systems bash builtin interprets \n itself. 405 echo -E ' 406 }; 407 408 static int 409 intcmp(const void *a, const void *b) 410 { 411 return *(int*)a - *(int*)b; 412 } 413 414 int 415 main(void) 416 { 417 int i, j, e; 418 char buf[1024], *p; 419 420 printf("\n\n// Error table\n"); 421 printf("var errors = [...]string {\n"); 422 qsort(errors, nelem(errors), sizeof errors[0], intcmp); 423 for(i=0; i<nelem(errors); i++) { 424 e = errors[i]; 425 if(i > 0 && errors[i-1] == e) 426 continue; 427 strcpy(buf, strerror(e)); 428 // lowercase first letter: Bad -> bad, but STREAM -> STREAM. 429 if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z) 430 buf[0] += a - A; 431 printf("\t%d: \"%s\",\n", e, buf); 432 } 433 printf("}\n\n"); 434 435 printf("\n\n// Signal table\n"); 436 printf("var signals = [...]string {\n"); 437 qsort(signals, nelem(signals), sizeof signals[0], intcmp); 438 for(i=0; i<nelem(signals); i++) { 439 e = signals[i]; 440 if(i > 0 && signals[i-1] == e) 441 continue; 442 strcpy(buf, strsignal(e)); 443 // lowercase first letter: Bad -> bad, but STREAM -> STREAM. 444 if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z) 445 buf[0] += a - A; 446 // cut trailing : number. 447 p = strrchr(buf, ":"[0]); 448 if(p) 449 *p = '\0'; 450 printf("\t%d: \"%s\",\n", e, buf); 451 } 452 printf("}\n\n"); 453 454 return 0; 455 } 456 457 ' 458 ) >_errors.c 459 460 $CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out