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: releng/9.0/sys/kern/makesyscalls.sh 225617 2011-09-16 13:58:51Z kmacy $
    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 
   13 # output files:
   14 sysnames="syscalls.c"
   15 sysproto="../sys/sysproto.h"
   16 sysproto_h=_SYS_SYSPROTO_H_
   17 syshdr="../sys/syscall.h"
   18 sysmk="../sys/syscall.mk"
   19 syssw="init_sysent.c"
   20 syscallprefix="SYS_"
   21 switchname="sysent"
   22 namesname="syscallnames"
   23 systrace="systrace_args.c"
   24 
   25 # tmp files:
   26 sysaue="sysent.aue.$$"
   27 sysdcl="sysent.dcl.$$"
   28 syscompat="sysent.compat.$$"
   29 syscompatdcl="sysent.compatdcl.$$"
   30 syscompat4="sysent.compat4.$$"
   31 syscompat4dcl="sysent.compat4dcl.$$"
   32 syscompat6="sysent.compat6.$$"
   33 syscompat6dcl="sysent.compat6dcl.$$"
   34 syscompat7="sysent.compat7.$$"
   35 syscompat7dcl="sysent.compat7dcl.$$"
   36 sysent="sysent.switch.$$"
   37 sysinc="sysinc.switch.$$"
   38 sysarg="sysarg.switch.$$"
   39 sysprotoend="sysprotoend.$$"
   40 systracetmp="systrace.$$"
   41 
   42 if [ -r capabilities.conf ]; then
   43         capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
   44         capenabled=`echo $capenabled | sed 's/ /,/g'`
   45 else
   46         capenabled=""
   47 fi
   48 
   49 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp" 0
   50 
   51 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp
   52 
   53 case $# in
   54     0)  echo "usage: $0 input-file <config-file>" 1>&2
   55         exit 1
   56         ;;
   57 esac
   58 
   59 if [ -n "$2" -a -f "$2" ]; then
   60         . $2
   61 fi
   62 
   63 sed -e '
   64 s/\$//g
   65 :join
   66         /\\$/{a\
   67 
   68         N
   69         s/\\\n//
   70         b join
   71         }
   72 2,${
   73         /^#/!s/\([{}()*,]\)/ \1 /g
   74 }
   75 ' < $1 | awk "
   76         BEGIN {
   77                 sysaue = \"$sysaue\"
   78                 sysdcl = \"$sysdcl\"
   79                 sysproto = \"$sysproto\"
   80                 sysprotoend = \"$sysprotoend\"
   81                 sysproto_h = \"$sysproto_h\"
   82                 syscompat = \"$syscompat\"
   83                 syscompatdcl = \"$syscompatdcl\"
   84                 syscompat4 = \"$syscompat4\"
   85                 syscompat4dcl = \"$syscompat4dcl\"
   86                 syscompat6 = \"$syscompat6\"
   87                 syscompat6dcl = \"$syscompat6dcl\"
   88                 syscompat7 = \"$syscompat7\"
   89                 syscompat7dcl = \"$syscompat7dcl\"
   90                 sysent = \"$sysent\"
   91                 syssw = \"$syssw\"
   92                 sysinc = \"$sysinc\"
   93                 sysarg = \"$sysarg\"
   94                 sysnames = \"$sysnames\"
   95                 syshdr = \"$syshdr\"
   96                 sysmk = \"$sysmk\"
   97                 systrace = \"$systrace\"
   98                 systracetmp = \"$systracetmp\"
   99                 compat = \"$compat\"
  100                 compat4 = \"$compat4\"
  101                 compat6 = \"$compat6\"
  102                 compat7 = \"$compat7\"
  103                 syscallprefix = \"$syscallprefix\"
  104                 switchname = \"$switchname\"
  105                 namesname = \"$namesname\"
  106                 infile = \"$1\"
  107                 capenabled_string = \"$capenabled\"
  108                 "'
  109 
  110                 split(capenabled_string, capenabled, ",");
  111 
  112                 printf "/*\n * System call switch table.\n *\n" > syssw
  113                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
  114                 printf " * $%s$\n", "FreeBSD" > syssw
  115 
  116                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  117                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
  118                 printf " * $%s$\n", "FreeBSD" > sysarg
  119 
  120                 printf "\n#ifdef %s\n\n", compat > syscompat
  121                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
  122                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
  123                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
  124 
  125                 printf "/*\n * System call names.\n *\n" > sysnames
  126                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
  127                 printf " * $%s$\n", "FreeBSD" > sysnames
  128 
  129                 printf "/*\n * System call numbers.\n *\n" > syshdr
  130                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
  131                 printf " * $%s$\n", "FreeBSD" > syshdr
  132                 printf "# FreeBSD system call names.\n" > sysmk
  133                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
  134                 printf "# $%s$\n", "FreeBSD" > sysmk
  135 
  136                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
  137                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
  138                 printf " * $%s$\n", "FreeBSD" > systrace
  139         }
  140         NR == 1 {
  141                 gsub("[$]FreeBSD: ", "", $0)
  142                 gsub(" [$]", "", $0)
  143 
  144                 printf " * created from%s\n */\n\n", $0 > syssw
  145 
  146                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
  147                 printf "struct sysent %s[] = {\n",switchname > sysent
  148 
  149                 printf " * created from%s\n */\n\n", $0 > sysarg
  150                 printf "#ifndef %s\n", sysproto_h > sysarg
  151                 printf "#define\t%s\n\n", sysproto_h > sysarg
  152                 printf "#include <sys/signal.h>\n" > sysarg
  153                 printf "#include <sys/acl.h>\n" > sysarg
  154                 printf "#include <sys/cpuset.h>\n" > sysarg
  155                 printf "#include <sys/_semaphore.h>\n" > sysarg
  156                 printf "#include <sys/ucontext.h>\n\n" > sysarg
  157                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
  158                 printf "struct proc;\n\n" > sysarg
  159                 printf "struct thread;\n\n" > sysarg
  160                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
  161                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
  162                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
  163                 printf "#define\tPADL_(t)\t0\n" > sysarg
  164                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
  165                 printf "#else\n" > sysarg
  166                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
  167                 printf "#define\tPADR_(t)\t0\n" > sysarg
  168                 printf "#endif\n\n" > sysarg
  169 
  170                 printf " * created from%s\n */\n\n", $0 > sysnames
  171                 printf "const char *%s[] = {\n", namesname > sysnames
  172 
  173                 printf " * created from%s\n */\n\n", $0 > syshdr
  174 
  175                 printf "# created from%s\nMIASM = ", $0 > sysmk
  176 
  177                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
  178                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
  179                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
  180                 printf "\tswitch (sysnum) {\n" > systrace
  181 
  182                 printf "static void\nsystrace_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
  183                 printf "\tswitch (sysnum) {\n" > systracetmp
  184 
  185                 next
  186         }
  187         NF == 0 || $1 ~ /^;/ {
  188                 next
  189         }
  190         $1 ~ /^#[       ]*include/ {
  191                 print > sysinc
  192                 next
  193         }
  194         $1 ~ /^#[       ]*if/ {
  195                 print > sysent
  196                 print > sysdcl
  197                 print > sysarg
  198                 print > syscompat
  199                 print > syscompat4
  200                 print > syscompat6
  201                 print > syscompat7
  202                 print > sysnames
  203                 print > systrace
  204                 print > systracetmp
  205                 savesyscall = syscall
  206                 next
  207         }
  208         $1 ~ /^#[       ]*else/ {
  209                 print > sysent
  210                 print > sysdcl
  211                 print > sysarg
  212                 print > syscompat
  213                 print > syscompat4
  214                 print > syscompat6
  215                 print > syscompat7
  216                 print > sysnames
  217                 print > systrace
  218                 print > systracetmp
  219                 syscall = savesyscall
  220                 next
  221         }
  222         $1 ~ /^#/ {
  223                 print > sysent
  224                 print > sysdcl
  225                 print > sysarg
  226                 print > syscompat
  227                 print > syscompat4
  228                 print > syscompat6
  229                 print > syscompat7
  230                 print > sysnames
  231                 print > systrace
  232                 print > systracetmp
  233                 next
  234         }
  235         syscall != $1 {
  236                 printf "%s: line %d: syscall number out of sync at %d\n",
  237                     infile, NR, syscall
  238                 printf "line is:\n"
  239                 print
  240                 exit 1
  241         }
  242         # Returns true if the type "name" is the first flag in the type field
  243         function type(name, flags, n) {
  244                 n = split($3, flags, /\|/)
  245                 return (n > 0 && flags[1] == name)
  246         }
  247         # Returns true if the flag "name" is set in the type field
  248         function flag(name, flags, i, n) {
  249                 n = split($3, flags, /\|/)
  250                 for (i = 1; i <= n; i++)
  251                         if (flags[i] == name)
  252                                 return 1
  253                 return 0
  254         }
  255         function align_sysent_comment(column) {
  256                 printf("\t") > sysent
  257                 column = column + 8 - column % 8
  258                 while (column < 56) {
  259                         printf("\t") > sysent
  260                         column = column + 8
  261                 }
  262         }
  263         function parserr(was, wanted) {
  264                 printf "%s: line %d: unexpected %s (expected %s)\n",
  265                     infile, NR, was, wanted
  266                 exit 1
  267         }
  268         function parseline() {
  269                 f=4                     # toss number, type, audit event
  270                 argc= 0;
  271                 argssize = "0"
  272                 thr_flag = "SY_THR_STATIC"
  273                 if (flag("NOTSTATIC")) {
  274                         thr_flag = "SY_THR_ABSENT"
  275                 }
  276                 if ($NF != "}") {
  277                         funcalias=$(NF-2)
  278                         argalias=$(NF-1)
  279                         rettype=$NF
  280                         end=NF-3
  281                 } else {
  282                         funcalias=""
  283                         argalias=""
  284                         rettype="int"
  285                         end=NF
  286                 }
  287                 if (flag("NODEF")) {
  288                         auditev="AUE_NULL"
  289                         funcname=$4
  290                         argssize = "AS(" $6 ")"
  291                         return
  292                 }
  293                 if ($f != "{")
  294                         parserr($f, "{")
  295                 f++
  296                 if ($end != "}")
  297                         parserr($end, "}")
  298                 end--
  299                 if ($end != ";")
  300                         parserr($end, ";")
  301                 end--
  302                 if ($end != ")")
  303                         parserr($end, ")")
  304                 end--
  305 
  306                 f++     #function return type
  307 
  308                 funcname=$f
  309 
  310                 #
  311                 # We now know the func name, so define a flags field for it.
  312                 # Do this before any other processing as we may return early
  313                 # from it.
  314                 #
  315                 for (cap in capenabled) {
  316                         if (funcname == capenabled[cap]) {
  317                                 flags = "SYF_CAPENABLED";
  318                         }
  319                 }
  320 
  321                 if (funcalias == "")
  322                         funcalias = funcname
  323                 if (argalias == "") {
  324                         argalias = funcname "_args"
  325                         if (flag("COMPAT"))
  326                                 argalias = "o" argalias
  327                         if (flag("COMPAT4"))
  328                                 argalias = "freebsd4_" argalias
  329                         if (flag("COMPAT6"))
  330                                 argalias = "freebsd6_" argalias
  331                         if (flag("COMPAT7"))
  332                                 argalias = "freebsd7_" argalias
  333                 }
  334                 f++
  335 
  336                 if ($f != "(")
  337                         parserr($f, ")")
  338                 f++
  339 
  340                 if (f == end) {
  341                         if ($f != "void")
  342                                 parserr($f, "argument definition")
  343                         return
  344                 }
  345 
  346                 while (f <= end) {
  347                         argc++
  348                         argtype[argc]=""
  349                         oldf=""
  350                         while (f < end && $(f+1) != ",") {
  351                                 if (argtype[argc] != "" && oldf != "*")
  352                                         argtype[argc] = argtype[argc]" ";
  353                                 argtype[argc] = argtype[argc]$f;
  354                                 oldf = $f;
  355                                 f++
  356                         }
  357                         if (argtype[argc] == "")
  358                                 parserr($f, "argument definition")
  359                         argname[argc]=$f;
  360                         f += 2;                 # skip name, and any comma
  361                 }
  362                 if (argc != 0)
  363                         argssize = "AS(" argalias ")"
  364         }
  365         {       comment = $4
  366                 if (NF < 7)
  367                         for (i = 5; i <= NF; i++)
  368                                 comment = comment " " $i
  369         }
  370 
  371         #
  372         # The AUE_ audit event identifier.
  373         #
  374         {
  375                 auditev = $2;
  376         }
  377 
  378         #
  379         # The flags, if any.
  380         #
  381         {
  382                 flags = "0";
  383         }
  384 
  385         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
  386             || type("NOSTD") {
  387                 parseline()
  388                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
  389                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
  390                 if (argc > 0) {
  391                         printf("\t\tswitch(ndx) {\n") > systracetmp
  392                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
  393                         for (i = 1; i <= argc; i++) {
  394                                 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
  395                                 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
  396                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
  397                                              i - 1, \
  398                                              argname[i], argtype[i]) > systrace
  399                                 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
  400                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
  401                                              i - 1, \
  402                                              argname[i], argtype[i]) > systrace
  403                                 else
  404                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
  405                                              i - 1, \
  406                                              argname[i], argtype[i]) > systrace
  407                         }
  408                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
  409                 }
  410                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
  411                 printf("\t\tbreak;\n") > systracetmp
  412                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
  413                     !flag("NODEF")) {
  414                         printf("struct %s {\n", argalias) > sysarg
  415                         for (i = 1; i <= argc; i++)
  416                                 printf("\tchar %s_l_[PADL_(%s)]; " \
  417                                     "%s %s; char %s_r_[PADR_(%s)];\n",
  418                                     argname[i], argtype[i],
  419                                     argtype[i], argname[i],
  420                                     argname[i], argtype[i]) > sysarg
  421                         printf("};\n") > sysarg
  422                 }
  423                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
  424                         printf("struct %s {\n\tregister_t dummy;\n};\n",
  425                             argalias) > sysarg
  426                 if (!flag("NOPROTO") && !flag("NODEF")) {
  427                         if (funcname == "nosys" || funcname == "lkmnosys" ||
  428                             funcname == "sysarch" || funcname ~ /^freebsd/ || 
  429                             funcname ~ /^linux/ || funcname ~ /^svr4/ || 
  430                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {                               
  431                                 printf("%s\t%s(struct thread *, struct %s *)",
  432                                     rettype, funcname, argalias) > sysdcl
  433                         } else {
  434                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
  435                                     rettype, funcname, argalias) > sysdcl
  436                         } 
  437                         printf(";\n") > sysdcl
  438                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
  439                             funcalias, auditev) > sysaue
  440                 }
  441                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
  442                 column = 8 + 2 + length(argssize) + 15
  443                 if (flag("NOSTD")) {
  444                         printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT") > sysent
  445                         column = column + length("lkmressys") + length("AUE_NULL") + 3
  446                 } else {
  447                         if (funcname == "nosys" || funcname == "sysarch" || 
  448                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
  449                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
  450                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
  451                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
  452                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 
  453                         } else {
  454                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
  455                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
  456                         } 
  457                 } 
  458                 align_sysent_comment(column)
  459                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
  460                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
  461                     funcalias, syscall, funcalias) > sysnames
  462                 if (!flag("NODEF")) {
  463                         printf("#define\t%s%s\t%d\n", syscallprefix,
  464                             funcalias, syscall) > syshdr
  465                         printf(" \\\n\t%s.o", funcalias) > sysmk
  466                 }
  467                 syscall++
  468                 next
  469         }
  470         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
  471             type("COMPAT7") {
  472                 if (flag("COMPAT")) {
  473                         ncompat++
  474                         out = syscompat
  475                         outdcl = syscompatdcl
  476                         wrap = "compat"
  477                         prefix = "o"
  478                         descr = "old"
  479                 } else if (flag("COMPAT4")) {
  480                         ncompat4++
  481                         out = syscompat4
  482                         outdcl = syscompat4dcl
  483                         wrap = "compat4"
  484                         prefix = "freebsd4_"
  485                         descr = "freebsd4"
  486                 } else if (flag("COMPAT6")) {
  487                         ncompat6++
  488                         out = syscompat6
  489                         outdcl = syscompat6dcl
  490                         wrap = "compat6"
  491                         prefix = "freebsd6_"
  492                         descr = "freebsd6"
  493                 } else if (flag("COMPAT7")) {
  494                         ncompat7++
  495                         out = syscompat7
  496                         outdcl = syscompat7dcl
  497                         wrap = "compat7"
  498                         prefix = "freebsd7_"
  499                         descr = "freebsd7"
  500                 }
  501                 parseline()
  502                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
  503                     !flag("NODEF")) {
  504                         printf("struct %s {\n", argalias) > out
  505                         for (i = 1; i <= argc; i++)
  506                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
  507                                     "char %s_r_[PADR_(%s)];\n",
  508                                     argname[i], argtype[i],
  509                                     argtype[i], argname[i],
  510                                     argname[i], argtype[i]) > out
  511                         printf("};\n") > out
  512                 }
  513                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
  514                         printf("struct %s {\n\tregister_t dummy;\n};\n",
  515                             argalias) > sysarg
  516                 if (!flag("NOPROTO") && !flag("NODEF")) {
  517                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
  518                             rettype, prefix, funcname, argalias) > outdcl
  519                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
  520                             prefix, funcname, auditev) > sysaue
  521                 }
  522                 if (flag("NOSTD")) {
  523                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
  524                             "0", "lkmressys", "AUE_NULL") > sysent
  525                         align_sysent_comment(8 + 2 + length("0") + 15 + \
  526                             length("lkmressys") + length("AUE_NULL") + 3)
  527                 } else {
  528                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
  529                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
  530                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
  531                             length(funcname) + length(auditev) + \
  532                             length(flags) + 4)
  533                 }
  534                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
  535                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
  536                     wrap, funcalias, syscall, descr, funcalias) > sysnames
  537                 if (flag("COMPAT")) {
  538                         printf("\t\t\t\t/* %d is old %s */\n",
  539                             syscall, funcalias) > syshdr
  540                 } else if (!flag("NODEF")) {
  541                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
  542                             prefix, funcalias, syscall) > syshdr
  543                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
  544                 }
  545                 syscall++
  546                 next
  547         }
  548         type("OBSOL") {
  549                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
  550                 align_sysent_comment(34)
  551                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
  552                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
  553                     $4, syscall, comment) > sysnames
  554                 printf("\t\t\t\t/* %d is obsolete %s */\n",
  555                     syscall, comment) > syshdr
  556                 syscall++
  557                 next
  558         }
  559         type("UNIMPL") {
  560                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
  561                     syscall, comment) > sysent
  562                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
  563                     syscall, syscall, comment) > sysnames
  564                 syscall++
  565                 next
  566         }
  567         {
  568                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
  569                 exit 1
  570         }
  571         END {
  572                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
  573 
  574                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
  575                         printf "#include \"opt_compat.h\"\n\n" > syssw
  576 
  577                 if (ncompat != 0) {
  578                         printf "\n#ifdef %s\n", compat > sysinc
  579                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
  580                         printf "#else\n" > sysinc
  581                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  582                         printf "#endif\n" > sysinc
  583                 }
  584 
  585                 if (ncompat4 != 0) {
  586                         printf "\n#ifdef %s\n", compat4 > sysinc
  587                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
  588                         printf "#else\n" > sysinc
  589                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  590                         printf "#endif\n" > sysinc
  591                 }
  592 
  593                 if (ncompat6 != 0) {
  594                         printf "\n#ifdef %s\n", compat6 > sysinc
  595                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
  596                         printf "#else\n" > sysinc
  597                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  598                         printf "#endif\n" > sysinc
  599                 }
  600 
  601                 if (ncompat7 != 0) {
  602                         printf "\n#ifdef %s\n", compat7 > sysinc
  603                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
  604                         printf "#else\n" > sysinc
  605                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  606                         printf "#endif\n" > sysinc
  607                 }
  608 
  609                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
  610                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
  611                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
  612                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
  613 
  614                 printf("\n#undef PAD_\n") > sysprotoend
  615                 printf("#undef PADL_\n") > sysprotoend
  616                 printf("#undef PADR_\n") > sysprotoend
  617                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
  618 
  619                 printf("\n") > sysmk
  620                 printf("};\n") > sysent
  621                 printf("};\n") > sysnames
  622                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
  623                     > syshdr
  624                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
  625                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
  626         } '
  627 
  628 cat $sysinc $sysent >> $syssw
  629 cat $sysarg $sysdcl \
  630         $syscompat $syscompatdcl \
  631         $syscompat4 $syscompat4dcl \
  632         $syscompat6 $syscompat6dcl \
  633         $syscompat7 $syscompat7dcl \
  634         $sysaue $sysprotoend > $sysproto
  635 cat $systracetmp >> $systrace
  636
Cache object: a2a88b63b64a698d734e1214d8081b49
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FreeBSD/Linux Kernel Cross Reference sys/kern/makesyscalls.sh

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