usr.bin/kdump/mksubr

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2006 "David Kirchner" <dpk@dpk.net>. All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions
   7 # are met:
   8 # 1. Redistributions of source code must retain the above copyright
   9 #    notice, this list of conditions and the following disclaimer.
  10 # 2. Redistributions in binary form must reproduce the above copyright
  11 #    notice, this list of conditions and the following disclaimer in the
  12 #    documentation and/or other materials provided with the distribution.
  13 #
  14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24 # SUCH DAMAGE.
  25 #
  26 # $FreeBSD$
  27 #
  28 # Generates kdump_subr.c
  29 # mkioctls is a special-purpose script, and works fine as it is
  30 # now, so it remains independent. The idea behind how it generates
  31 # its list was heavily borrowed here.
  32 #
  33 # Some functions here are automatically generated. This can mean
  34 # the user will see unusual kdump output or errors while building
  35 # if the underlying .h files are changed significantly.
  36 #
  37 # Key:
  38 # AUTO: Completely auto-generated with either the "or" or the "switch"
  39 # method.
  40 # AUTO - Special: Generated automatically, but with some extra commands
  41 # that the auto_*_type() functions are inappropriate for.
  42 # MANUAL: Manually entered and must therefore be manually updated.
  43
  44 set -e
  45
  46 LC_ALL=C; export LC_ALL
  47
  48 if [ -z "$1" ]
  49 then
  50         echo "usage: sh $0 include-dir"
  51         exit 1
  52 fi
  53 include_dir=$1
  54
  55 #
  56 # Automatically generates a C function that will print out the
  57 # numeric input as a pipe-delimited string of the appropriate
  58 # #define keys. ex:
  59 # S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH
  60 # The XOR is necessary to prevent including the "0"-value in every
  61 # line.
  62 #
  63 auto_or_type () {
  64         local name grep file
  65         name=$1
  66         grep=$2
  67         file=$3
  68
  69         cat <<_EOF_
  70 /* AUTO */
  71 void
  72 $name(intmax_t arg)
  73 {
  74         int or = 0;
  75         printf("%#jx<", (uintmax_t)arg);
  76 _EOF_
  77         egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
  78                 $include_dir/$file | \
  79         awk '{ for (i = 1; i <= NF; i++) \
  80                 if ($i ~ /define/) \
  81                         break; \
  82                 ++i; \
  83                 printf "\tif (!((arg > 0) ^ ((%s) > 0)))\n\t\tif_print_or(arg, %s, or);\n", $i, $i }'
  84 cat <<_EOF_
  85         printf(">");
  86         if (or == 0)
  87                 printf("<invalid>%jd", arg);
  88 }
  89
  90 _EOF_
  91 }
  92
  93 #
  94 # Automatically generates a C function used when the argument
  95 # maps to a single, specific #definition
  96 #
  97 auto_switch_type () {
  98         local name grep file
  99         name=$1
 100         grep=$2
 101         file=$3
 102
 103         cat <<_EOF_
 104 /* AUTO */
 105 void
 106 $name(intmax_t arg)
 107 {
 108         switch (arg) {
 109 _EOF_
 110         egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
 111                 $include_dir/$file | \
 112         awk '{ for (i = 1; i <= NF; i++) \
 113                 if ($i ~ /define/) \
 114                         break; \
 115                 ++i; \
 116                 printf "\tcase %s:\n\t\tprintf(\"%s\");\n\t\tbreak;\n", $i, $i }'
 117 cat <<_EOF_
 118         default: /* Should not reach */
 119                 printf("<invalid=%jd>", arg);
 120         }
 121 }
 122
 123 _EOF_
 124 }
 125
 126 #
 127 # Automatically generates a C function used when the argument
 128 # maps to a #definition
 129 #
 130 auto_if_type () {
 131         local name grep file
 132         name=$1
 133         grep=$2
 134         file=$3
 135
 136         cat <<_EOF_
 137 /* AUTO */
 138 void
 139 $name(intmax_t arg)
 140 {
 141 _EOF_
 142         egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
 143                 $include_dir/$file | \
 144         awk '{ printf "\t"; \
 145                 if (NR > 1) \
 146                         printf "else " ; \
 147                 printf "if (arg == %s) \n\t\tprintf(\"%s\");\n", $2, $2 }'
 148 cat <<_EOF_
 149         else /* Should not reach */
 150                 printf("<invalid=%jd>", arg);
 151 }
 152
 153 _EOF_
 154 }
 155
 156 # C start
 157
 158 cat <<_EOF_
 159 #include <stdint.h>
 160 #include <stdio.h>
 161 #include <sys/fcntl.h>
 162 #include <sys/stat.h>
 163 #include <sys/unistd.h>
 164 #include <sys/mman.h>
 165 #include <sys/wait.h>
 166 #define _KERNEL
 167 #include <sys/socket.h>
 168 #undef _KERNEL
 169 #include <netinet/in.h>
 170 #include <sys/param.h>
 171 #include <sys/mount.h>
 172 #include <sys/ptrace.h>
 173 #include <sys/resource.h>
 174 #include <sys/reboot.h>
 175 #include <sched.h>
 176 #include <sys/linker.h>
 177 #define _KERNEL
 178 #include <sys/thr.h>
 179 #undef _KERNEL
 180 #include <sys/extattr.h>
 181 #include <sys/acl.h>
 182 #include <aio.h>
 183 #include <sys/sem.h>
 184 #include <sys/ipc.h>
 185 #include <sys/rtprio.h>
 186 #include <sys/shm.h>
 187 #include <nfsserver/nfs.h>
 188 #include <ufs/ufs/quota.h>
 189 #include <sys/capability.h>
 190 #include <vm/vm.h>
 191 #include <vm/vm_param.h>
 192
 193 #include "kdump_subr.h"
 194
 195 /*
 196  * These are simple support macros. print_or utilizes a variable
 197  * defined in the calling function to track whether or not it should
 198  * print a logical-OR character ('|') before a string. if_print_or
 199  * simply handles the necessary "if" statement used in many lines
 200  * of this file.
 201  */
 202 #define print_or(str,orflag) do {                  \\
 203         if (orflag) putchar('|'); else orflag = 1; \\
 204         printf (str); }                            \\
 205         while (0)
 206 #define if_print_or(i,flag,orflag) do {            \\
 207         if ((i & flag) == flag)                    \\
 208         print_or(#flag,orflag); }                  \\
 209         while (0)
 210
 211 /* MANUAL */
 212 void
 213 atfdname(int fd, int decimal)
 214 {
 215         if (fd == AT_FDCWD)
 216                 printf("AT_FDCWD");
 217         else if (decimal)
 218                 printf("%d", fd);
 219         else
 220                 printf("%#x", fd);
 221 }
 222
 223 /* MANUAL */
 224 extern char *signames[]; /* from kdump.c */
 225 void
 226 signame(int sig)
 227 {
 228         if (sig > 0 && sig < NSIG)
 229                 printf("SIG%s",signames[sig]);
 230         else
 231                 printf("SIG %d", sig);
 232 }
 233
 234 /* MANUAL */
 235 void
 236 semctlname(int cmd)
 237 {
 238         switch (cmd) {
 239         case GETNCNT:
 240                 printf("GETNCNT");
 241                 break;
 242         case GETPID:
 243                 printf("GETPID");
 244                 break;
 245         case GETVAL:
 246                 printf("GETVAL");
 247                 break;
 248         case GETALL:
 249                 printf("GETALL");
 250                 break;
 251         case GETZCNT:
 252                 printf("GETZCNT");
 253                 break;
 254         case SETVAL:
 255                 printf("SETVAL");
 256                 break;
 257         case SETALL:
 258                 printf("SETALL");
 259                 break;
 260         case IPC_RMID:
 261                 printf("IPC_RMID");
 262                 break;
 263         case IPC_SET:
 264                 printf("IPC_SET");
 265                 break;
 266         case IPC_STAT:
 267                 printf("IPC_STAT");
 268                 break;
 269         default: /* Should not reach */
 270                 printf("<invalid=%d>", cmd);
 271         }
 272 }
 273
 274 /* MANUAL */
 275 void
 276 shmctlname(int cmd)
 277 {
 278         switch (cmd) {
 279         case IPC_RMID:
 280                 printf("IPC_RMID");
 281                 break;
 282         case IPC_SET:
 283                 printf("IPC_SET");
 284                 break;
 285         case IPC_STAT:
 286                 printf("IPC_STAT");
 287                 break;
 288         default: /* Should not reach */
 289                 printf("<invalid=%d>", cmd);
 290         }
 291 }
 292
 293 /* MANUAL */
 294 void
 295 semgetname(int flag)
 296 {
 297         int or = 0;
 298         if_print_or(flag, IPC_CREAT, or);
 299         if_print_or(flag, IPC_EXCL, or);
 300         if_print_or(flag, SEM_R, or);
 301         if_print_or(flag, SEM_A, or);
 302         if_print_or(flag, (SEM_R>>3), or);
 303         if_print_or(flag, (SEM_A>>3), or);
 304         if_print_or(flag, (SEM_R>>6), or);
 305         if_print_or(flag, (SEM_A>>6), or);
 306 }
 307
 308 /*
 309  * MANUAL
 310  *
 311  * Only used by SYS_open. Unless O_CREAT is set in flags, the
 312  * mode argument is unused (and often bogus and misleading).
 313  */
 314 void
 315 flagsandmodename(int flags, int mode, int decimal)
 316 {
 317         flagsname(flags);
 318         putchar(',');
 319         if ((flags & O_CREAT) == O_CREAT) {
 320                 modename (mode);
 321         } else {
 322                 if (decimal) {
 323                         printf("<unused>%d", mode);
 324                 } else {
 325                         printf("<unused>%#x", (unsigned int)mode);
 326                 }
 327         }
 328 }
 329
 330 /*
 331  * MANUAL
 332  *
 333  * [g|s]etsockopt's level argument can either be SOL_SOCKET or a value
 334  * referring to a line in /etc/protocols . It might be appropriate
 335  * to use getprotoent(3) here.
 336  */
 337 void
 338 sockoptlevelname(int level, int decimal)
 339 {
 340         if (level == SOL_SOCKET) {
 341                 printf("SOL_SOCKET");
 342         } else {
 343                 if (decimal) {
 344                         printf("%d", level);
 345                 } else {
 346                         printf("%#x", (unsigned int)level);
 347                 }
 348         }
 349 }
 350
 351 /*
 352  * MANUAL
 353  *
 354  * Used for page fault type.  Cannot use auto_or_type since the macro
 355  * values contain a cast.  Also, VM_PROT_NONE has to be handled specially.
 356  */
 357 void
 358 vmprotname (int type)
 359 {
 360         int     or = 0;
 361
 362         if (type == VM_PROT_NONE) {
 363                 (void)printf("VM_PROT_NONE");
 364                 return;
 365         }
 366         if_print_or(type, VM_PROT_READ, or);
 367         if_print_or(type, VM_PROT_WRITE, or);
 368         if_print_or(type, VM_PROT_EXECUTE, or);
 369         if_print_or(type, VM_PROT_COPY, or);
 370 }
 371
 372 /*
 373  * MANUAL
 374  */
 375 void
 376 socktypenamewithflags(int type)
 377 {
 378         if (type & SOCK_CLOEXEC)
 379                 printf("SOCK_CLOEXEC|"), type &= ~SOCK_CLOEXEC;
 380         if (type & SOCK_NONBLOCK)
 381                 printf("SOCK_NONBLOCK|"), type &= ~SOCK_NONBLOCK;
 382         socktypename(type);
 383 }
 384 _EOF_
 385
 386 auto_or_type     "accessmodename"      "[A-Z]_OK[[:space:]]+0?x?[0-9A-Fa-f]+"         "sys/unistd.h"
 387 auto_switch_type "acltypename"         "ACL_TYPE_[A-Z4_]+[[:space:]]+0x[0-9]+"        "sys/acl.h"
 388 auto_or_type     "capname"             "CAP_[A-Z]+[[:space:]]+0x[01248]{16}ULL"       "sys/capability.h"
 389 auto_or_type     "capfcntlname"        "CAP_FCNTL_[A-Z]+[[:space:]]+\(1"              "sys/capability.h"
 390 auto_switch_type "extattrctlname"      "EXTATTR_NAMESPACE_[A-Z]+[[:space:]]+0x[0-9]+" "sys/extattr.h"
 391 auto_switch_type "fadvisebehavname"    "POSIX_FADV_[A-Z]+[[:space:]]+[0-9]+"          "sys/fcntl.h"
 392 auto_or_type     "flagsname"           "O_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+"           "sys/fcntl.h"
 393 auto_or_type     "flockname"           "LOCK_[A-Z]+[[:space:]]+0x[0-9]+"              "sys/fcntl.h"
 394 auto_or_type     "getfsstatflagsname"  "MNT_[A-Z]+[[:space:]]+[1-9][0-9]*"            "sys/mount.h"
 395 auto_switch_type "kldsymcmdname"       "KLDSYM_[A-Z]+[[:space:]]+[0-9]+"              "sys/linker.h"
 396 auto_switch_type "kldunloadfflagsname" "LINKER_UNLOAD_[A-Z]+[[:space:]]+[0-9]+"       "sys/linker.h"
 397 auto_switch_type "lio_listioname"      "LIO_(NO)?WAIT[[:space:]]+[0-9]+"              "aio.h"
 398 auto_switch_type "madvisebehavname"    "_?MADV_[A-Z]+[[:space:]]+[0-9]+"              "sys/mman.h"
 399 auto_switch_type "minheritname"        "INHERIT_[A-Z]+[[:space:]]+[0-9]+"             "sys/mman.h"
 400 auto_or_type     "mlockallname"        "MCL_[A-Z]+[[:space:]]+0x[0-9]+"               "sys/mman.h"
 401 auto_or_type     "mmapprotname"        "PROT_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+"        "sys/mman.h"
 402 auto_or_type     "modename"            "S_[A-Z]+[[:space:]]+[0-6]{7}"                 "sys/stat.h"
 403 auto_or_type     "mountflagsname"      "MNT_[A-Z]+[[:space:]]+0x[0-9]+"               "sys/mount.h"
 404 auto_switch_type "msyncflagsname"      "MS_[A-Z]+[[:space:]]+0x[0-9]+"                "sys/mman.h"
 405 auto_or_type     "nfssvcname"          "NFSSVC_[A-Z0-9]+[[:space:]]+0x[0-9]+"            "nfs/nfssvc.h"
 406 auto_switch_type "prioname"            "PRIO_[A-Z]+[[:space:]]+[0-9]"                 "sys/resource.h"
 407 auto_switch_type "ptraceopname"        "PT_[[:alnum:]_]+[[:space:]]+[0-9]+"           "sys/ptrace.h"
 408 auto_switch_type "quotactlname"        "Q_[A-Z]+[[:space:]]+0x[0-9]+"                 "ufs/ufs/quota.h"
 409 auto_or_type     "rebootoptname"       "RB_[A-Z]+[[:space:]]+0x[0-9]+"                "sys/reboot.h"
 410 auto_or_type     "rforkname"           "RF[A-Z]+[[:space:]]+\([0-9]+<<[0-9]+\)"       "sys/unistd.h"
 411 auto_switch_type "rlimitname"          "RLIMIT_[A-Z]+[[:space:]]+[0-9]+"              "sys/resource.h"
 412 auto_switch_type "schedpolicyname"     "SCHED_[A-Z]+[[:space:]]+[0-9]+"               "sched.h"
 413 auto_switch_type "sendfileflagsname"   "SF_[A-Z]+[[:space:]]+[0-9]+"                  "sys/socket.h"
 414 auto_or_type     "shmatname"           "SHM_[A-Z]+[[:space:]]+[0-9]{6}+"              "sys/shm.h"
 415 auto_switch_type "shutdownhowname"     "SHUT_[A-Z]+[[:space:]]+[0-9]+"                "sys/socket.h"
 416 auto_switch_type "sigbuscodename"      "BUS_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 417 auto_switch_type "sigchldcodename"     "CLD_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 418 auto_switch_type "sigfpecodename"      "FPE_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 419 auto_switch_type "sigprocmaskhowname"  "SIG_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 420 auto_switch_type "sigillcodename"      "ILL_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 421 auto_switch_type "sigsegvcodename"     "SEGV_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 422 auto_switch_type "sigtrapcodename"     "TRAP_[A-Z]+[[:space:]]+[0-9]+"                 "sys/signal.h"
 423 auto_if_type     "sockdomainname"      "PF_[[:alnum:]]+[[:space:]]+"                  "sys/socket.h"
 424 auto_if_type     "sockfamilyname"      "AF_[[:alnum:]]+[[:space:]]+"                  "sys/socket.h"
 425 auto_if_type     "sockipprotoname"     "IPPROTO_[[:alnum:]]+[[:space:]]+"             "netinet/in.h"
 426 auto_switch_type "sockoptname"         "SO_[A-Z]+[[:space:]]+0x[0-9]+"                "sys/socket.h"
 427 auto_switch_type "socktypename"        "SOCK_[A-Z]+[[:space:]]+[1-9]+[0-9]*"          "sys/socket.h"
 428 auto_or_type     "thrcreateflagsname"  "THR_[A-Z]+[[:space:]]+0x[0-9]+"               "sys/thr.h"
 429 auto_switch_type "vmresultname"        "KERN_[A-Z]+[[:space:]]+[0-9]+"                "vm/vm_param.h"
 430 auto_or_type     "wait4optname"        "W[A-Z]+[[:space:]]+[0-9]+"                    "sys/wait.h"
 431 auto_switch_type "whencename"          "SEEK_[A-Z]+[[:space:]]+[0-9]+"                "sys/unistd.h"
 432
 433 cat <<_EOF_
 434 /*
 435  * AUTO - Special
 436  * F_ is used to specify fcntl commands as well as arguments. Both sets are
 437  * grouped in fcntl.h, and this awk script grabs the first group.
 438  */
 439 void
 440 fcntlcmdname(int cmd, int arg, int decimal)
 441 {
 442         switch (cmd) {
 443 _EOF_
 444 egrep "^#[[:space:]]*define[[:space:]]+F_[A-Z0-9_]+[[:space:]]+[0-9]+[[:space:]]*" \
 445         $include_dir/sys/fcntl.h | \
 446         awk 'BEGIN { o=0 } { for (i = 1; i <= NF; i++) \
 447                 if ($i ~ /define/) \
 448                         break; \
 449                 ++i; \
 450                 if (o <= $(i+1)) \
 451                         printf "\tcase %s:\n\t\tprintf(\"%s\");\n\t\tbreak;\n", $i, $i; \
 452                 else \
 453                         exit; \
 454                 o = $(i+1) }'
 455 cat <<_EOF_
 456         default: /* Should not reach */
 457                 printf("<invalid=%d>", cmd);
 458         }
 459         putchar(',');
 460         if (cmd == F_GETFD || cmd == F_SETFD) {
 461                 if (arg == FD_CLOEXEC)
 462                         printf("FD_CLOEXEC");
 463                 else if (arg == 0)
 464                         printf("0");
 465                 else {
 466                         if (decimal)
 467                                 printf("<invalid>%d", arg);
 468                         else
 469                                 printf("<invalid>%#x", (unsigned int)arg);
 470                 }
 471         } else if (cmd == F_SETFL) {
 472                 flagsname(arg);
 473         } else {
 474                 if (decimal)
 475                         printf("%d", arg);
 476                 else
 477                         printf("%#x", (unsigned int)arg);
 478         }
 479 }
 480
 481 /*
 482  * AUTO - Special
 483  *
 484  * The MAP_ALIGNED flag requires special handling.
 485  */
 486 void
 487 mmapflagsname(int flags)
 488 {
 489         int align;
 490         int or = 0;
 491         printf("%#x<", flags);
 492 _EOF_
 493 egrep "^#[[:space:]]*define[[:space:]]+MAP_[A-Z_]+[[:space:]]+0x[0-9A-Fa-f]+[[:space:]]*" \
 494         $include_dir/sys/mman.h | grep -v MAP_ALIGNED | \
 495         awk '{ for (i = 1; i <= NF; i++) \
 496                 if ($i ~ /define/) \
 497                         break; \
 498                 ++i; \
 499                 printf "\tif (!((flags > 0) ^ ((%s) > 0)))\n\t\tif_print_or(flags, %s, or);\n", $i, $i }'
 500 cat <<_EOF_
 501         align = flags & MAP_ALIGNMENT_MASK;
 502         if (align != 0) {
 503                 if (align == MAP_ALIGNED_SUPER)
 504                         print_or("MAP_ALIGNED_SUPER", or);
 505                 else {
 506                         print_or("MAP_ALIGNED", or);
 507                         printf("(%d)", align >> MAP_ALIGNMENT_SHIFT);
 508                 }
 509         }
 510         printf(">");
 511         if (or == 0)
 512                 printf("<invalid>%d", flags);
 513 }
 514
 515 /*
 516  * AUTO - Special
 517  *
 518  * The only reason this is not fully automated is due to the
 519  * grep -v RTP_PRIO statement. A better egrep line should
 520  * make this capable of being a auto_switch_type() function.
 521  */
 522 void
 523 rtprioname(int func)
 524 {
 525         switch (func) {
 526 _EOF_
 527 egrep "^#[[:space:]]*define[[:space:]]+RTP_[A-Z]+[[:space:]]+0x[0-9]+[[:space:]]*" \
 528         $include_dir/sys/rtprio.h | grep -v RTP_PRIO | \
 529         awk '{ for (i = 1; i <= NF; i++) \
 530                 if ($i ~ /define/) \
 531                         break; \
 532                 ++i; \
 533                 printf "\tcase %s:\n\t\tprintf(\"%s\");\n\t\tbreak;\n", $i, $i }'
 534 cat <<_EOF_
 535         default: /* Should not reach */
 536                 printf("<invalid=%d>", func);
 537         }
 538 }
 539
 540 /*
 541  * AUTO - Special
 542  *
 543  * The send and recv functions have a flags argument which can be
 544  * set to 0. There is no corresponding #define. The auto_ functions
 545  * detect this as "invalid", which is incorrect here.
 546  */
 547 void
 548 sendrecvflagsname(int flags)
 549 {
 550         int or = 0;
 551
 552         if (flags == 0) {
 553                 printf("0");
 554                 return;
 555         }
 556
 557         printf("%#x<", flags);
 558 _EOF_
 559 egrep "^#[[:space:]]*define[[:space:]]+MSG_[A-Z]+[[:space:]]+0x[0-9]+[[:space:]]*" $include_dir/sys/socket.h | \
 560         awk '{ for (i = 1; i <= NF; i++) \
 561                 if ($i ~ /define/) \
 562                         break; \
 563                 ++i; \
 564                 printf "\tif(!((flags>0)^((%s)>0)))\n\t\tif_print_or(flags, %s, or);\n", $i, $i }'
 565 cat <<_EOF_
 566         printf(">");
 567 }
 568
 569 /*
 570  * AUTO - Special
 571  *
 572  * Check general codes first, then defer to signal-specific codes.
 573  */
 574 void
 575 sigcodename(int sig, int code)
 576 {
 577         switch (code) {
 578 _EOF_
 579 egrep "^#[[:space:]]*define[[:space:]]+SI_[A-Z]+[[:space:]]+0(x[0-9abcdef]+)?[[:space:]]*" \
 580         $include_dir/sys/signal.h | grep -v SI_UNDEFINED | \
 581         awk '{ for (i = 1; i <= NF; i++) \
 582                 if ($i ~ /define/) \
 583                         break; \
 584                 ++i; \
 585                 printf "\tcase %s:\n\t\tprintf(\"%s\");\n\t\tbreak;\n", $i, $i }'
 586 cat <<_EOF_
 587         default:
 588                 switch (sig) {
 589                 case SIGILL:
 590                         sigillcodename(code);
 591                         break;
 592                 case SIGBUS:
 593                         sigbuscodename(code);
 594                         break;
 595                 case SIGSEGV:
 596                         sigsegvcodename(code);
 597                         break;
 598                 case SIGFPE:
 599                         sigfpecodename(code);
 600                         break;
 601                 case SIGTRAP:
 602                         sigtrapcodename(code);
 603                         break;
 604                 case SIGCHLD:
 605                         sigchldcodename(code);
 606                         break;
 607                 default:
 608                         printf("<invalid=%#x>", code);
 609                 }
 610         }
 611 }