github.com/guyezi/gofrontend@v0.0.0-20200228202240-7a62a49e62c0/libgo/sysinfo.c (about) 1 /* sysinfo.c -- input for mksysinfo.sh 2 3 Copyright 2009 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 /* This file is passed to GCC with the -fdump-go-spec option to 8 generate a Go version of the system information. */ 9 10 #include "config.h" 11 12 #include <stddef.h> 13 #include <sys/types.h> 14 #include <dirent.h> 15 #include <errno.h> 16 #include <fcntl.h> 17 #include <ucontext.h> 18 #include <netinet/in.h> 19 /* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only 20 included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE 21 && !_XOPEN_SOURCE. 22 <sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while 23 <sys/ttold.h> does so unconditionally. */ 24 #ifdef __sgi__ 25 #include <sys/bsd_types.h> 26 #include <sys/ttold.h> 27 #endif 28 #include <netinet/tcp.h> 29 #if defined(HAVE_NETINET_IN_SYSTM_H) 30 #include <netinet/in_systm.h> 31 #endif 32 #if defined(HAVE_NETINET_IP_H) 33 #include <netinet/ip.h> 34 #endif 35 #if defined(HAVE_NETINET_IP_MROUTE_H) 36 #include <netinet/ip_mroute.h> 37 #endif 38 #if defined(HAVE_NETINET_IF_ETHER_H) 39 #include <netinet/if_ether.h> 40 #endif 41 #include <signal.h> 42 #include <sys/ioctl.h> 43 #include <termios.h> 44 #if defined(HAVE_SYSCALL_H) 45 #include <syscall.h> 46 #endif 47 #if defined(HAVE_SYS_SYSCALL_H) 48 #include <sys/syscall.h> 49 #endif 50 #if defined(HAVE_SYS_EPOLL_H) 51 #include <sys/epoll.h> 52 #endif 53 #if defined(HAVE_SYS_EVENT_H) 54 #include <sys/event.h> 55 #endif 56 #if defined(HAVE_SYS_FILE_H) 57 #include <sys/file.h> 58 #endif 59 #if defined(HAVE_SYS_MMAN_H) 60 #include <sys/mman.h> 61 #endif 62 #if defined(HAVE_SYS_PRCTL_H) 63 #include <sys/prctl.h> 64 #endif 65 #if defined(HAVE_SYS_PTRACE_H) 66 #include <sys/ptrace.h> 67 #endif 68 #include <sys/resource.h> 69 #include <sys/uio.h> 70 #include <sys/socket.h> 71 #include <sys/stat.h> 72 #include <sys/time.h> 73 #include <sys/times.h> 74 #include <sys/wait.h> 75 #include <sys/un.h> 76 #if defined(HAVE_SYS_USER_H) 77 #include <sys/user.h> 78 #endif 79 #if defined(HAVE_SYS_UTSNAME_H) 80 #include <sys/utsname.h> 81 #endif 82 #if defined(HAVE_SYS_SELECT_H) 83 #include <sys/select.h> 84 #endif 85 #include <time.h> 86 #include <unistd.h> 87 #include <netdb.h> 88 #include <pwd.h> 89 #include <grp.h> 90 #if defined(HAVE_LINUX_FILTER_H) 91 #include <linux/filter.h> 92 #endif 93 #if defined(HAVE_LINUX_IF_ADDR_H) 94 #include <linux/if_addr.h> 95 #endif 96 #if defined(HAVE_LINUX_IF_ETHER_H) 97 #include <linux/if_ether.h> 98 #endif 99 #if defined(HAVE_LINUX_IF_TUN_H) 100 #include <linux/if_tun.h> 101 #endif 102 #if defined(HAVE_LINUX_NETLINK_H) 103 #include <linux/netlink.h> 104 #endif 105 #if defined(HAVE_LINUX_PTRACE_H) 106 /* Avoid https://sourceware.org/bugzilla/show_bug.cgi?id=762 . */ 107 #define ia64_fpreg pt_ia64_fpreg 108 #define pt_all_user_regs pt_ia64_all_user_regs 109 /* Avoid redefinition of ptrace_peeksiginfo from <sys/ptrace.h>. 110 https://gcc.gnu.org/PR81324 . */ 111 #define ptrace_peeksiginfo_args ignore_ptrace_peeksiginfo_args 112 #include <linux/ptrace.h> 113 #undef ia64_fpreg 114 #undef pt_all_user_regs 115 #undef ptrace_peeksiginfo_args 116 #endif 117 #if defined(HAVE_LINUX_RTNETLINK_H) 118 #include <linux/rtnetlink.h> 119 #endif 120 #if defined(HAVE_NET_IF_H) 121 #include <net/if.h> 122 #endif 123 #if defined(HAVE_NET_IF_ARP_H) 124 #include <net/if_arp.h> 125 #endif 126 #if defined(HAVE_NET_ROUTE_H) 127 #include <net/route.h> 128 #endif 129 #if defined (HAVE_NETPACKET_PACKET_H) 130 #include <netpacket/packet.h> 131 #endif 132 #if defined(HAVE_SYS_MOUNT_H) 133 #include <sys/mount.h> 134 #endif 135 #if defined(HAVE_SYS_VFS_H) 136 #include <sys/vfs.h> 137 #endif 138 #if defined(HAVE_STATFS_H) 139 #include <sys/statfs.h> 140 #endif 141 #if defined(HAVE_SYS_TIMEX_H) 142 #include <sys/timex.h> 143 #endif 144 #if defined(HAVE_SYS_SYSINFO_H) 145 #include <sys/sysinfo.h> 146 #endif 147 #if defined(HAVE_UTIME_H) 148 #include <utime.h> 149 #endif 150 #if defined(HAVE_LINUX_ETHER_H) 151 #include <linux/ether.h> 152 #endif 153 #if defined(HAVE_LINUX_FS_H) 154 #include <linux/fs.h> 155 #endif 156 #if defined(HAVE_LINUX_REBOOT_H) 157 #include <linux/reboot.h> 158 #endif 159 #if defined(HAVE_SYS_INOTIFY_H) 160 #include <sys/inotify.h> 161 #endif 162 #if defined(HAVE_NETINET_ICMP6_H) 163 #include <netinet/icmp6.h> 164 #endif 165 #if defined(HAVE_SCHED_H) 166 #include <sched.h> 167 #endif 168 #if defined(HAVE_SEMAPHORE_H) 169 #include <semaphore.h> 170 #endif 171 #if defined(HAVE_PORT_H) 172 #include <port.h> 173 #endif 174 175 #ifdef USE_LIBFFI 176 #include "ffi.h" 177 #endif 178 179 /* Constants that may only be defined as expressions on some systems, 180 expressions too complex for -fdump-go-spec to handle. These are 181 handled specially below. */ 182 enum { 183 #ifdef TIOCGWINSZ 184 TIOCGWINSZ_val = TIOCGWINSZ, 185 #endif 186 #ifdef TIOCSWINSZ 187 TIOCSWINSZ_val = TIOCSWINSZ, 188 #endif 189 #ifdef TIOCNOTTY 190 TIOCNOTTY_val = TIOCNOTTY, 191 #endif 192 #ifdef TIOCSCTTY 193 TIOCSCTTY_val = TIOCSCTTY, 194 #endif 195 #ifdef TIOCGPGRP 196 TIOCGPGRP_val = TIOCGPGRP, 197 #endif 198 #ifdef TIOCSPGRP 199 TIOCSPGRP_val = TIOCSPGRP, 200 #endif 201 #ifdef TIOCGPTN 202 TIOCGPTN_val = TIOCGPTN, 203 #endif 204 #ifdef TIOCSPTLCK 205 TIOCSPTLCK_val = TIOCSPTLCK, 206 #endif 207 #ifdef TIOCGDEV 208 TIOCGDEV_val = TIOCGDEV, 209 #endif 210 #ifdef TIOCSIG 211 TIOCSIG_val = TIOCSIG, 212 #endif 213 #ifdef TCGETS 214 TCGETS_val = TCGETS, 215 #endif 216 #ifdef TCSETS 217 TCSETS_val = TCSETS, 218 #endif 219 #ifdef TUNSETIFF 220 TUNSETIFF_val = TUNSETIFF, 221 #endif 222 #ifdef TUNSETNOCSUM 223 TUNSETNOCSUM_val = TUNSETNOCSUM, 224 #endif 225 #ifdef TUNSETDEBUG 226 TUNSETDEBUG_val = TUNSETDEBUG, 227 #endif 228 #ifdef TUNSETPERSIST 229 TUNSETPERSIST_val = TUNSETPERSIST, 230 #endif 231 #ifdef TUNSETOWNER 232 TUNSETOWNER_val = TUNSETOWNER, 233 #endif 234 #ifdef TUNSETLINK 235 TUNSETLINK_val = TUNSETLINK, 236 #endif 237 #ifdef TUNSETGROUP 238 TUNSETGROUP_val = TUNSETGROUP, 239 #endif 240 #ifdef TUNGETFEATURES 241 TUNGETFEATURES_val = TUNGETFEATURES, 242 #endif 243 #ifdef TUNSETOFFLOAD 244 TUNSETOFFLOAD_val = TUNSETOFFLOAD, 245 #endif 246 #ifdef TUNSETTXFILTER 247 TUNSETTXFILTER_val = TUNSETTXFILTER, 248 #endif 249 #ifdef TUNGETIFF 250 TUNGETIFF_val = TUNGETIFF, 251 #endif 252 #ifdef TUNGETSNDBUF 253 TUNGETSNDBUF_val = TUNGETSNDBUF, 254 #endif 255 #ifdef TUNSETSNDBUF 256 TUNSETSNDBUF_val = TUNSETSNDBUF, 257 #endif 258 #ifdef TUNATTACHFILTER 259 TUNATTACHFILTER_val = TUNATTACHFILTER, 260 #endif 261 #ifdef TUNDETACHFILTER 262 TUNDETACHFILTER_val = TUNDETACHFILTER, 263 #endif 264 #ifdef TUNGETVNETHDRSZ 265 TUNGETVNETHDRSZ_val = TUNGETVNETHDRSZ, 266 #endif 267 #ifdef TUNSETVNETHDRSZ 268 TUNSETVNETHDRSZ_val = TUNSETVNETHDRSZ, 269 #endif 270 #ifdef TUNSETQUEUE 271 TUNSETQUEUE_val = TUNSETQUEUE, 272 #endif 273 #ifdef TUNSETIFINDEX 274 TUNSETIFINDEX_val = TUNSETIFINDEX, 275 #endif 276 #ifdef TUNGETFILTER 277 TUNGETFILTER_val = TUNGETFILTER, 278 #endif 279 #ifdef NLA_HDRLEN 280 NLA_HDRLEN_val = NLA_HDRLEN, 281 #endif 282 }; 283 284 #if defined(HAVE_SYS_EPOLL_H) 285 enum { 286 epoll_data_offset = offsetof(struct epoll_event, data) 287 }; 288 #endif 289 290 // The following section introduces explicit references to types and 291 // constants of interest to support bootstrapping libgo using a 292 // compiler that doesn't support -fdump-go-spec (e.g., clang), via 293 // DWARF-based tools. This process is made more difficult due to the 294 // fact that clang tries hard to omit types/constants from DWARF if it 295 // can't find explicit references to them, so here we make sure that 296 // key items are mentioned in ways that will force them into the 297 // generated DWARF. 298 299 #if defined(__clang__) 300 301 // Make a reference to a type 302 #define TREF(typ) typ typ ## ref 303 304 // Make a reference to an opaque type 305 #define OTREF(typ) typ *typ ## ref 306 307 // Make a reference to a struct tag 308 #define SREF(stag) struct stag stag ## ref 309 310 // Make a reference to an enum literal 311 #define EREF(elit) unsigned elit ## fn(unsigned x) { return x == elit ? 1 : 0; } 312 313 //...................................................................... 314 315 // From dirent.h 316 SREF(dirent); 317 SREF(dirent64); 318 OTREF(DIR); 319 320 // From fcntl.h 321 SREF(flock); 322 SREF(flock64); 323 324 // From ffi headers 325 SREF(_ffi_type); 326 TREF(ffi_cif); 327 TREF(ffi_abi); 328 TREF(ffi_status); 329 EREF(FFI_OK); 330 331 // From grp.h 332 SREF(group); 333 334 #if defined(HAVE_LINUX_FILTER_H) 335 // From linux/filter.h 336 SREF(sock_filter); 337 SREF(sock_fprog); 338 #endif 339 340 // From linux/if.h 341 EREF(IFF_UP); 342 343 #if defined(HAVE_LINUX_IF_ADDR_H) 344 // From linux/if_addr.h 345 SREF(ifaddrmsg); 346 EREF(IFA_ADDRESS); 347 #endif 348 349 #if defined(HAVE_LINUX_RTNETLINK_H) 350 // From linux/if_link.h 351 EREF(IFLA_ADDRESS); 352 #endif 353 354 // From in.h, in6.h, icmp6.h 355 SREF(ip_mreq); 356 SREF(ip_mreqn); 357 SREF(ipv6_mreq); 358 SREF(ip6_mtuinfo); 359 SREF(icmp6_filter); 360 SREF(in_pktinfo); 361 EREF(IPPROTO_TCP); 362 363 #if defined(HAVE_LINUX_RTNETLINK_H) 364 // From linux/rtnetlink.h 365 SREF(rtgenmsg); 366 SREF(rtmsg); 367 SREF(ifinfomsg); 368 SREF(rtattr); 369 SREF(rtnexthop); 370 EREF(RTM_BASE); 371 EREF(RTN_UNSPEC); 372 #endif 373 374 // From netdb.h 375 SREF(addrinfo); 376 377 // From netlink.h 378 SREF(nlattr); 379 SREF(nlmsgerr); 380 381 // From pthread.h and related 382 TREF(pthread_attr_t); 383 TREF(pthread_t); 384 TREF(pthread_mutex_t); 385 TREF(pthread_mutexattr_t); 386 387 // From pwd.h 388 SREF(passwd); 389 390 // From signal.h and related 391 TREF(sigset_t); 392 TREF(siginfo_t); 393 TREF(stack_t); 394 SREF(sigaction); 395 SREF(sigstack); 396 EREF(SI_USER); 397 EREF(FPE_INTOVF); 398 EREF(BUS_ADRALN); 399 EREF(SS_ONSTACK); 400 EREF(SEGV_MAPERR); 401 402 // From stat.h 403 SREF(stat64); 404 405 // From statfs.h 406 SREF(statfs); 407 SREF(statfs64); 408 409 // From sysinfo.h 410 SREF(sysinfo); 411 412 // From <sys/epoll.h> 413 #if defined(HAVE_SYS_EPOLL_H) 414 SREF(epoll_event); 415 EREF(EPOLLIN); 416 EREF(epoll_data_offset); 417 #endif 418 419 #if defined(HAVE_SYS_MOUNT_H) 420 // From sys/mount.h 421 EREF(MS_PRIVATE); 422 EREF(MNT_FORCE); 423 #endif 424 425 #if defined(HAVE_SYS_PTRACE_H) 426 // From <sys/ptrace.h> 427 #if defined (__aarch64__) 428 SREF(user_pt_regs); 429 #else 430 SREF(pt_regs); 431 #endif 432 EREF(PTRACE_PEEKTEXT); 433 #endif 434 435 // From sys/resource.h 436 SREF(rusage); 437 SREF(rlimit64); 438 EREF(RLIMIT_NOFILE); 439 EREF(PRIO_USER); 440 441 // From sys/select.h 442 TREF(fd_set); 443 444 // From sys/socket.h 445 SREF(msghdr); 446 SREF(cmsghdr); 447 SREF(ucred); 448 EREF(MSG_OOB); 449 EREF(SCM_RIGHTS); 450 EREF(SOCK_RAW); 451 EREF(SHUT_RD); 452 453 // From sys/time.h and sys/times.h 454 SREF(timespec); 455 SREF(timeval); 456 SREF(itimerval); 457 SREF(tms); 458 EREF(ITIMER_PROF); 459 460 #if defined(HAVE_SYS_TIMEX_H) 461 // From sys/timex.h 462 SREF(timex); 463 #endif 464 465 // From sys/types.h 466 TREF(pid_t); 467 TREF(off_t); 468 TREF(loff_t); 469 TREF(size_t); 470 TREF(ssize_t); 471 TREF(mode_t); 472 TREF(dev_t); 473 TREF(time_t); 474 475 // From sys/ucontext.h 476 TREF(ucontext_t); 477 478 #if defined(HAVE_SYS_USER_H) 479 // From sys/user.h 480 SREF(user_regs_struct); 481 #endif 482 483 #if defined(HAVE_SYS_UTSNAME_H) 484 // From sys/utsname.h 485 SREF(utsname); 486 #endif 487 488 // From termios.h 489 SREF(termios); 490 491 // From uio.h 492 SREF(iovec); 493 494 // From utime.h 495 SREF(utimbuf); 496 497 // From unistd.h 498 EREF(_PC_NAME_MAX); 499 EREF(_SC_GETPW_R_SIZE_MAX); 500 501 #endif // clang