The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/kern/makesyscalls.sh

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
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    1 #! /bin/sh -
    2 #       @(#)makesyscalls.sh     8.1 (Berkeley) 6/10/93
    3 # $FreeBSD$
    4 
    5 set -e
    6 
    7 # name of compat options:
    8 compat=COMPAT_43
    9 compat4=COMPAT_FREEBSD4
   10 compat6=COMPAT_FREEBSD6
   11 compat7=COMPAT_FREEBSD7
   12 compat10=COMPAT_FREEBSD10
   13 compat11=COMPAT_FREEBSD11
   14 
   15 # output files:
   16 sysnames="syscalls.c"
   17 sysproto="../sys/sysproto.h"
   18 sysproto_h=_SYS_SYSPROTO_H_
   19 syshdr="../sys/syscall.h"
   20 sysmk="../sys/syscall.mk"
   21 syssw="init_sysent.c"
   22 syscallprefix="SYS_"
   23 switchname="sysent"
   24 namesname="syscallnames"
   25 systrace="systrace_args.c"
   26 
   27 # tmp files:
   28 sysaue="sysent.aue.$$"
   29 sysdcl="sysent.dcl.$$"
   30 syscompat="sysent.compat.$$"
   31 syscompatdcl="sysent.compatdcl.$$"
   32 syscompat4="sysent.compat4.$$"
   33 syscompat4dcl="sysent.compat4dcl.$$"
   34 syscompat6="sysent.compat6.$$"
   35 syscompat6dcl="sysent.compat6dcl.$$"
   36 syscompat7="sysent.compat7.$$"
   37 syscompat7dcl="sysent.compat7dcl.$$"
   38 syscompat10="sysent.compat10.$$"
   39 syscompat10dcl="sysent.compat10dcl.$$"
   40 syscompat11="sysent.compat11.$$"
   41 syscompat11dcl="sysent.compat11dcl.$$"
   42 sysent="sysent.switch.$$"
   43 sysinc="sysinc.switch.$$"
   44 sysarg="sysarg.switch.$$"
   45 sysprotoend="sysprotoend.$$"
   46 systracetmp="systrace.$$"
   47 systraceret="systraceret.$$"
   48 capabilities_conf="capabilities.conf"
   49 
   50 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
   51 
   52 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
   53 
   54 case $# in
   55     0)  echo "usage: $0 input-file <config-file>" 1>&2
   56         exit 1
   57         ;;
   58 esac
   59 
   60 if [ -n "$2" ]; then
   61         . "$2"
   62 fi
   63 
   64 if [ -n "$capenabled" ]; then
   65         # do nothing
   66 elif [ -r $capabilities_conf ]; then
   67         capenabled=`egrep -v '^#|^$' $capabilities_conf`
   68         capenabled=`echo $capenabled | sed 's/ /,/g'`
   69 else
   70         capenabled=""
   71 fi
   72 
   73 sed -e '
   74         # FreeBSD ID, includes, comments, and blank lines
   75         /.*\$FreeBSD/b done_joining
   76         /^[#;]/b done_joining
   77         /^$/b done_joining
   78 
   79         # Join lines ending in backslash
   80 :joining
   81         /\\$/{a\
   82 
   83         N
   84         s/\\\n//
   85         b joining
   86         }
   87 
   88         # OBSOL, etc lines without function signatures
   89         /^[0-9][^{]*$/b done_joining
   90 
   91         # Join incomplete signatures.  The { must appear on the first line
   92         # and the } must appear on the last line (modulo lines joined by
   93         # backslashes).
   94         /^[^}]*$/{a\
   95 
   96         N
   97         s/\n//
   98         b joining
   99         }
  100 :done_joining
  101 2,${
  102         /^#/!s/\([{}()*,]\)/ \1 /g
  103 }
  104 ' < $1 | awk "
  105         BEGIN {
  106                 sysaue = \"$sysaue\"
  107                 sysdcl = \"$sysdcl\"
  108                 sysproto = \"$sysproto\"
  109                 sysprotoend = \"$sysprotoend\"
  110                 sysproto_h = \"$sysproto_h\"
  111                 syscompat = \"$syscompat\"
  112                 syscompatdcl = \"$syscompatdcl\"
  113                 syscompat4 = \"$syscompat4\"
  114                 syscompat4dcl = \"$syscompat4dcl\"
  115                 syscompat6 = \"$syscompat6\"
  116                 syscompat6dcl = \"$syscompat6dcl\"
  117                 syscompat7 = \"$syscompat7\"
  118                 syscompat7dcl = \"$syscompat7dcl\"
  119                 syscompat10 = \"$syscompat10\"
  120                 syscompat10dcl = \"$syscompat10dcl\"
  121                 syscompat11 = \"$syscompat11\"
  122                 syscompat11dcl = \"$syscompat11dcl\"
  123                 sysent = \"$sysent\"
  124                 syssw = \"$syssw\"
  125                 sysinc = \"$sysinc\"
  126                 sysarg = \"$sysarg\"
  127                 sysnames = \"$sysnames\"
  128                 syshdr = \"$syshdr\"
  129                 sysmk = \"$sysmk\"
  130                 systrace = \"$systrace\"
  131                 systracetmp = \"$systracetmp\"
  132                 systraceret = \"$systraceret\"
  133                 compat = \"$compat\"
  134                 compat4 = \"$compat4\"
  135                 compat6 = \"$compat6\"
  136                 compat7 = \"$compat7\"
  137                 compat10 = \"$compat10\"
  138                 compat11 = \"$compat11\"
  139                 syscallprefix = \"$syscallprefix\"
  140                 switchname = \"$switchname\"
  141                 namesname = \"$namesname\"
  142                 infile = \"$1\"
  143                 abi_func_prefix = \"$abi_func_prefix\"
  144                 capenabled_string = \"$capenabled\"
  145                 "'
  146 
  147                 # Avoid a literal generated file tag here.
  148                 generated = "@" "generated";
  149 
  150                 split(capenabled_string, capenabled, ",");
  151 
  152                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
  153                 printf "struct sysent %s[] = {\n",switchname > sysent
  154 
  155                 printf "/*\n * System call switch table.\n *\n" > syssw
  156                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syssw
  157                 printf " * $%s$\n", "FreeBSD" > syssw
  158                 printf " */\n\n" > syssw
  159 
  160                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  161                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysarg
  162                 printf " * $%s$\n", "FreeBSD" > sysarg
  163                 printf " */\n\n" > sysarg
  164                 printf "#ifndef %s\n", sysproto_h > sysarg
  165                 printf "#define\t%s\n\n", sysproto_h > sysarg
  166                 printf "#include <sys/signal.h>\n" > sysarg
  167                 printf "#include <sys/acl.h>\n" > sysarg
  168                 printf "#include <sys/cpuset.h>\n" > sysarg
  169                 printf "#include <sys/domainset.h>\n" > sysarg
  170                 printf "#include <sys/_ffcounter.h>\n" > sysarg
  171                 printf "#include <sys/_semaphore.h>\n" > sysarg
  172                 printf "#include <sys/ucontext.h>\n" > sysarg
  173                 printf "#include <sys/wait.h>\n\n" > sysarg
  174                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
  175                 printf "struct proc;\n\n" > sysarg
  176                 printf "struct thread;\n\n" > sysarg
  177                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
  178                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
  179                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
  180                 printf "#define\tPADL_(t)\t0\n" > sysarg
  181                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
  182                 printf "#else\n" > sysarg
  183                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
  184                 printf "#define\tPADR_(t)\t0\n" > sysarg
  185                 printf "#endif\n\n" > sysarg
  186 
  187                 printf "\n#ifdef %s\n\n", compat > syscompat
  188                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
  189                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
  190                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
  191                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
  192                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
  193 
  194                 printf "/*\n * System call names.\n *\n" > sysnames
  195                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysnames
  196                 printf " * $%s$\n", "FreeBSD" > sysnames
  197                 printf " */\n\n" > sysnames
  198                 printf "const char *%s[] = {\n", namesname > sysnames
  199 
  200                 printf "/*\n * System call numbers.\n *\n" > syshdr
  201                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syshdr
  202                 printf " * $%s$\n", "FreeBSD" > syshdr
  203                 printf " */\n\n" > syshdr
  204 
  205                 printf "# FreeBSD system call object files.\n" > sysmk
  206                 printf "# DO NOT EDIT-- this file is automatically " generated ".\n" > sysmk
  207                 printf "# $%s$\n", "FreeBSD" > sysmk
  208                 printf "MIASM = " > sysmk
  209 
  210                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
  211                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > systrace
  212                 printf " * $%s$\n", "FreeBSD" > systrace
  213                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
  214                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
  215                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
  216                 printf "\tswitch (sysnum) {\n" > systrace
  217 
  218                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
  219                 printf "\tswitch (sysnum) {\n" > systracetmp
  220 
  221                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
  222                 printf "\tswitch (sysnum) {\n" > systraceret
  223         }
  224         NR == 1 {
  225                 next
  226         }
  227         NF == 0 || $1 ~ /^;/ {
  228                 next
  229         }
  230         $1 ~ /^#[       ]*include/ {
  231                 print > sysinc
  232                 next
  233         }
  234         $1 ~ /^#[       ]*if/ {
  235                 print > sysent
  236                 print > sysdcl
  237                 print > sysarg
  238                 print > syscompat
  239                 print > syscompat4
  240                 print > syscompat6
  241                 print > syscompat7
  242                 print > syscompat10
  243                 print > syscompat11
  244                 print > sysnames
  245                 print > systrace
  246                 print > systracetmp
  247                 print > systraceret
  248                 savesyscall = syscall
  249                 next
  250         }
  251         $1 ~ /^#[       ]*else/ {
  252                 print > sysent
  253                 print > sysdcl
  254                 print > sysarg
  255                 print > syscompat
  256                 print > syscompat4
  257                 print > syscompat6
  258                 print > syscompat7
  259                 print > syscompat10
  260                 print > syscompat11
  261                 print > sysnames
  262                 print > systrace
  263                 print > systracetmp
  264                 print > systraceret
  265                 syscall = savesyscall
  266                 next
  267         }
  268         $1 ~ /^#/ {
  269                 print > sysent
  270                 print > sysdcl
  271                 print > sysarg
  272                 print > syscompat
  273                 print > syscompat4
  274                 print > syscompat6
  275                 print > syscompat7
  276                 print > syscompat10
  277                 print > syscompat11
  278                 print > sysnames
  279                 print > systrace
  280                 print > systracetmp
  281                 print > systraceret
  282                 next
  283         }
  284         # Returns true if the type "name" is the first flag in the type field
  285         function type(name, flags, n) {
  286                 n = split($3, flags, /\|/)
  287                 return (n > 0 && flags[1] == name)
  288         }
  289         # Returns true if the flag "name" is set in the type field
  290         function flag(name, flags, i, n) {
  291                 n = split($3, flags, /\|/)
  292                 for (i = 1; i <= n; i++)
  293                         if (flags[i] == name)
  294                                 return 1
  295                 return 0
  296         }
  297         {
  298                 n = split($1, syscall_range, /-/)
  299                 if (n == 1) {
  300                         syscall_range[2] = syscall_range[1]
  301                 } else if (n == 2) {
  302                         if (!type("UNIMPL")) {
  303                                 printf "%s: line %d: range permitted only with UNIMPL\n",
  304                                     infile, NR
  305                                 exit 1
  306                         }
  307                 } else {
  308                         printf "%s: line %d: invalid syscall number or range %s\n",
  309                             infile, NR, $1
  310                         exit 1
  311                 }
  312         }
  313         syscall != syscall_range[1] {
  314                 printf "%s: line %d: syscall number out of sync at %d\n",
  315                     infile, NR, syscall
  316                 printf "line is:\n"
  317                 print
  318                 exit 1
  319         }
  320         function align_sysent_comment(column) {
  321                 printf("\t") > sysent
  322                 column = column + 8 - column % 8
  323                 while (column < 56) {
  324                         printf("\t") > sysent
  325                         column = column + 8
  326                 }
  327         }
  328         function parserr(was, wanted) {
  329                 printf "%s: line %d: unexpected %s (expected %s)\n",
  330                     infile, NR, was, wanted
  331                 exit 1
  332         }
  333         function parseline() {
  334                 f=4                     # toss number, type, audit event
  335                 argc= 0;
  336                 argssize = "0"
  337                 thr_flag = "SY_THR_STATIC"
  338                 if (flag("NOTSTATIC")) {
  339                         thr_flag = "SY_THR_ABSENT"
  340                 }
  341                 if ($NF != "}") {
  342                         funcalias=$(NF-2)
  343                         argalias=$(NF-1)
  344                         rettype=$NF
  345                         end=NF-3
  346                 } else {
  347                         funcalias=""
  348                         argalias=""
  349                         rettype="int"
  350                         end=NF
  351                 }
  352                 if (flag("NODEF")) {
  353                         auditev="AUE_NULL"
  354                         funcname=$4
  355                         argssize = "AS(" $6 ")"
  356                         return
  357                 }
  358                 if ($f != "{")
  359                         parserr($f, "{")
  360                 f++
  361                 if ($end != "}")
  362                         parserr($end, "}")
  363                 end--
  364                 if ($end != ";")
  365                         parserr($end, ";")
  366                 end--
  367                 if ($end != ")")
  368                         parserr($end, ")")
  369                 end--
  370 
  371                 syscallret=$f
  372                 f++
  373 
  374                 funcname=$f
  375 
  376                 #
  377                 # We now know the func name, so define a flags field for it.
  378                 # Do this before any other processing as we may return early
  379                 # from it.
  380                 #
  381                 for (cap in capenabled) {
  382                         if (funcname == capenabled[cap] ||
  383                             funcname == abi_func_prefix capenabled[cap]) {
  384                                 flags = "SYF_CAPENABLED";
  385                                 break;
  386                         }
  387                 }
  388 
  389                 if (funcalias == "")
  390                         funcalias = funcname
  391                 if (argalias == "") {
  392                         argalias = funcname "_args"
  393                         if (flag("COMPAT"))
  394                                 argalias = "o" argalias
  395                         if (flag("COMPAT4"))
  396                                 argalias = "freebsd4_" argalias
  397                         if (flag("COMPAT6"))
  398                                 argalias = "freebsd6_" argalias
  399                         if (flag("COMPAT7"))
  400                                 argalias = "freebsd7_" argalias
  401                         if (flag("COMPAT10"))
  402                                 argalias = "freebsd10_" argalias
  403                         if (flag("COMPAT11"))
  404                                 argalias = "freebsd11_" argalias
  405                 }
  406                 f++
  407 
  408                 if ($f != "(")
  409                         parserr($f, ")")
  410                 f++
  411 
  412                 if (f == end) {
  413                         if ($f != "void")
  414                                 parserr($f, "argument definition")
  415                         return
  416                 }
  417 
  418                 while (f <= end) {
  419                         argc++
  420                         argtype[argc]=""
  421                         oldf=""
  422                         while (f < end && $(f+1) != ",") {
  423                                 if (argtype[argc] != "" && oldf != "*")
  424                                         argtype[argc] = argtype[argc]" ";
  425                                 argtype[argc] = argtype[argc]$f;
  426                                 oldf = $f;
  427                                 f++
  428                         }
  429                         if (argtype[argc] == "")
  430                                 parserr($f, "argument definition")
  431 
  432                         # The parser adds space around parens.
  433                         # Remove it from annotations.
  434                         gsub(/ \( /, "(", argtype[argc]);
  435                         gsub(/ \)/, ")", argtype[argc]);
  436 
  437                         #remove annotations
  438                         gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
  439                         gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
  440 
  441                         argname[argc]=$f;
  442                         f += 2;                 # skip name, and any comma
  443                 }
  444                 if (argc != 0)
  445                         argssize = "AS(" argalias ")"
  446         }
  447         {       comment = $4
  448                 if (NF < 7)
  449                         for (i = 5; i <= NF; i++)
  450                                 comment = comment " " $i
  451         }
  452 
  453         #
  454         # The AUE_ audit event identifier.
  455         #
  456         {
  457                 auditev = $2;
  458         }
  459 
  460         #
  461         # The flags, if any.
  462         #
  463         {
  464                 flags = "0";
  465         }
  466 
  467         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
  468             || type("NOSTD") {
  469                 parseline()
  470                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
  471                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
  472                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
  473                 if (argc > 0) {
  474                         printf("\t\tswitch(ndx) {\n") > systracetmp
  475                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
  476                         for (i = 1; i <= argc; i++) {
  477                                 arg = argtype[i]
  478                                 sub("__restrict$", "", arg)
  479                                 if (index(arg, "*") > 0)
  480                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
  481                                 else
  482                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
  483                                 if (index(arg, "*") > 0 || arg == "caddr_t")
  484                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
  485                                              i - 1, \
  486                                              argname[i], arg) > systrace
  487                                 else if (arg == "union l_semun")
  488                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
  489                                              i - 1, \
  490                                              argname[i], arg) > systrace
  491                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
  492                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
  493                                              i - 1, \
  494                                              argname[i], arg) > systrace
  495                                 else
  496                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
  497                                              i - 1, \
  498                                              argname[i], arg) > systrace
  499                         }
  500                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
  501 
  502                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
  503                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
  504                         printf("\t\tbreak;\n") > systraceret
  505                 }
  506                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
  507                 printf("\t\tbreak;\n") > systracetmp
  508                 if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF")) {
  509                         if (argc != 0) {
  510                                 printf("struct %s {\n", argalias) > sysarg
  511                                 for (i = 1; i <= argc; i++)
  512                                         printf("\tchar %s_l_[PADL_(%s)]; " \
  513                                             "%s %s; char %s_r_[PADR_(%s)];\n",
  514                                             argname[i], argtype[i],
  515                                             argtype[i], argname[i],
  516                                             argname[i], argtype[i]) > sysarg
  517                                 printf("};\n") > sysarg
  518                         } else
  519                                 printf("struct %s {\n\tregister_t dummy;\n};\n",
  520                                     argalias) > sysarg
  521                 }
  522                 if (!flag("NOPROTO") && !flag("NODEF")) {
  523                         if (funcname == "nosys" || funcname == "lkmnosys" ||
  524                             funcname == "sysarch" || funcname ~ /^freebsd/ || 
  525                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
  526                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
  527                                 printf("%s\t%s(struct thread *, struct %s *)",
  528                                     rettype, funcname, argalias) > sysdcl
  529                         } else {
  530                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
  531                                     rettype, funcname, argalias) > sysdcl
  532                         } 
  533                         printf(";\n") > sysdcl
  534                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
  535                             funcalias, auditev) > sysaue
  536                 }
  537                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
  538                 column = 8 + 2 + length(argssize) + 15
  539                 if (flag("NOSTD")) {
  540                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
  541                         column = column + length("lkmressys") + length("AUE_NULL") + 3
  542                 } else {
  543                         if (funcname == "nosys" || funcname == "sysarch" || 
  544                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
  545                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
  546                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
  547                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
  548                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 
  549                         } else {
  550                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
  551                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
  552                         } 
  553                 } 
  554                 align_sysent_comment(column)
  555                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
  556                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
  557                     funcalias, syscall, funcalias) > sysnames
  558                 if (!flag("NODEF")) {
  559                         printf("#define\t%s%s\t%d\n", syscallprefix,
  560                             funcalias, syscall) > syshdr
  561                         printf(" \\\n\t%s.o", funcalias) > sysmk
  562                 }
  563                 syscall++
  564                 next
  565         }
  566         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
  567             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
  568                 if (flag("COMPAT")) {
  569                         ncompat++
  570                         out = syscompat
  571                         outdcl = syscompatdcl
  572                         wrap = "compat"
  573                         prefix = "o"
  574                         descr = "old"
  575                 } else if (flag("COMPAT4")) {
  576                         ncompat4++
  577                         out = syscompat4
  578                         outdcl = syscompat4dcl
  579                         wrap = "compat4"
  580                         prefix = "freebsd4_"
  581                         descr = "freebsd4"
  582                 } else if (flag("COMPAT6")) {
  583                         ncompat6++
  584                         out = syscompat6
  585                         outdcl = syscompat6dcl
  586                         wrap = "compat6"
  587                         prefix = "freebsd6_"
  588                         descr = "freebsd6"
  589                 } else if (flag("COMPAT7")) {
  590                         ncompat7++
  591                         out = syscompat7
  592                         outdcl = syscompat7dcl
  593                         wrap = "compat7"
  594                         prefix = "freebsd7_"
  595                         descr = "freebsd7"
  596                 } else if (flag("COMPAT10")) {
  597                         ncompat10++
  598                         out = syscompat10
  599                         outdcl = syscompat10dcl
  600                         wrap = "compat10"
  601                         prefix = "freebsd10_"
  602                         descr = "freebsd10"
  603                 } else if (flag("COMPAT11")) {
  604                         ncompat11++
  605                         out = syscompat11
  606                         outdcl = syscompat11dcl
  607                         wrap = "compat11"
  608                         prefix = "freebsd11_"
  609                         descr = "freebsd11"
  610                 }
  611                 parseline()
  612                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
  613                     !flag("NODEF")) {
  614                         printf("struct %s {\n", argalias) > out
  615                         for (i = 1; i <= argc; i++)
  616                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
  617                                     "char %s_r_[PADR_(%s)];\n",
  618                                     argname[i], argtype[i],
  619                                     argtype[i], argname[i],
  620                                     argname[i], argtype[i]) > out
  621                         printf("};\n") > out
  622                 }
  623                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
  624                         printf("struct %s {\n\tregister_t dummy;\n};\n",
  625                             argalias) > sysarg
  626                 if (!flag("NOPROTO") && !flag("NODEF")) {
  627                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
  628                             rettype, prefix, funcname, argalias) > outdcl
  629                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
  630                             prefix, funcname, auditev) > sysaue
  631                 }
  632                 if (flag("NOSTD")) {
  633                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
  634                             "0", "lkmressys", "AUE_NULL") > sysent
  635                         align_sysent_comment(8 + 2 + length("0") + 15 + \
  636                             length("lkmressys") + length("AUE_NULL") + 3)
  637                 } else {
  638                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
  639                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
  640                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
  641                             length(funcname) + length(auditev) + \
  642                             length(flags) + 4)
  643                 }
  644                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
  645                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
  646                     wrap, funcalias, syscall, descr, funcalias) > sysnames
  647                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
  648                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
  649                         printf("\t\t\t\t/* %d is %s %s */\n",
  650                             syscall, descr, funcalias) > syshdr
  651                 } else if (!flag("NODEF")) {
  652                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
  653                             prefix, funcalias, syscall) > syshdr
  654                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
  655                 }
  656                 syscall++
  657                 next
  658         }
  659         type("OBSOL") {
  660                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
  661                 align_sysent_comment(34)
  662                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
  663                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
  664                     $4, syscall, comment) > sysnames
  665                 printf("\t\t\t\t/* %d is obsolete %s */\n",
  666                     syscall, comment) > syshdr
  667                 syscall++
  668                 next
  669         }
  670         type("UNIMPL") {
  671                 while (syscall <= syscall_range[2]) {
  672                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
  673                             syscall, comment) > sysent
  674                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
  675                             syscall, syscall, comment) > sysnames
  676                         syscall++
  677                 }
  678                 next
  679         }
  680         {
  681                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
  682                 exit 1
  683         }
  684         END {
  685                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
  686 
  687                 if (ncompat != 0) {
  688                         printf "\n#ifdef %s\n", compat > sysinc
  689                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
  690                         printf "#else\n" > sysinc
  691                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  692                         printf "#endif\n" > sysinc
  693                 }
  694 
  695                 if (ncompat4 != 0) {
  696                         printf "\n#ifdef %s\n", compat4 > sysinc
  697                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
  698                         printf "#else\n" > sysinc
  699                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  700                         printf "#endif\n" > sysinc
  701                 }
  702 
  703                 if (ncompat6 != 0) {
  704                         printf "\n#ifdef %s\n", compat6 > sysinc
  705                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
  706                         printf "#else\n" > sysinc
  707                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  708                         printf "#endif\n" > sysinc
  709                 }
  710 
  711                 if (ncompat7 != 0) {
  712                         printf "\n#ifdef %s\n", compat7 > sysinc
  713                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
  714                         printf "#else\n" > sysinc
  715                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  716                         printf "#endif\n" > sysinc
  717                 }
  718                 if (ncompat10 != 0) {
  719                         printf "\n#ifdef %s\n", compat10 > sysinc
  720                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
  721                         printf "#else\n" > sysinc
  722                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  723                         printf "#endif\n" > sysinc
  724                 }
  725                 if (ncompat11 != 0) {
  726                         printf "\n#ifdef %s\n", compat11 > sysinc
  727                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
  728                         printf "#else\n" > sysinc
  729                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  730                         printf "#endif\n" > sysinc
  731                 }
  732 
  733                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
  734                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
  735                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
  736                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
  737                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
  738                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
  739 
  740                 printf("\n#undef PAD_\n") > sysprotoend
  741                 printf("#undef PADL_\n") > sysprotoend
  742                 printf("#undef PADR_\n") > sysprotoend
  743                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
  744 
  745                 printf("\n") > sysmk
  746                 printf("};\n") > sysent
  747                 printf("};\n") > sysnames
  748                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
  749                     > syshdr
  750                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
  751                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
  752                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
  753         } '
  754 
  755 cat $sysinc $sysent >> $syssw
  756 cat $sysarg $sysdcl \
  757         $syscompat $syscompatdcl \
  758         $syscompat4 $syscompat4dcl \
  759         $syscompat6 $syscompat6dcl \
  760         $syscompat7 $syscompat7dcl \
  761         $syscompat10 $syscompat10dcl \
  762         $syscompat11 $syscompat11dcl \
  763         $sysaue $sysprotoend > $sysproto
  764 cat $systracetmp >> $systrace
  765 cat $systraceret >> $systrace
  766 

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