makesyscalls.sh

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    1 #! /bin/sh -
    2 #       @(#)makesyscalls.sh     8.1 (Berkeley) 6/10/93
    3 # $FreeBSD: releng/8.4/sys/kern/makesyscalls.sh 236151 2012-05-27 14:25:16Z rstone $
    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.$$"
   41 systraceret="systraceret.$$"
   42 
   43 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
   44 
   45 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
   46 
   47 case $# in
   48     0)  echo "usage: $0 input-file <config-file>" 1>&2
   49         exit 1
   50         ;;
   51 esac
   52 
   53 if [ -n "$2" -a -f "$2" ]; then
   54         . $2
   55 fi
   56 
   57 sed -e '
   58 s/\$//g
   59 :join
   60         /\\$/{a\
   61 
   62         N
   63         s/\\\n//
   64         b join
   65         }
   66 2,${
   67         /^#/!s/\([{}()*,]\)/ \1 /g
   68 }
   69 ' < $1 | awk "
   70         BEGIN {
   71                 sysaue = \"$sysaue\"
   72                 sysdcl = \"$sysdcl\"
   73                 sysproto = \"$sysproto\"
   74                 sysprotoend = \"$sysprotoend\"
   75                 sysproto_h = \"$sysproto_h\"
   76                 syscompat = \"$syscompat\"
   77                 syscompatdcl = \"$syscompatdcl\"
   78                 syscompat4 = \"$syscompat4\"
   79                 syscompat4dcl = \"$syscompat4dcl\"
   80                 syscompat6 = \"$syscompat6\"
   81                 syscompat6dcl = \"$syscompat6dcl\"
   82                 syscompat7 = \"$syscompat7\"
   83                 syscompat7dcl = \"$syscompat7dcl\"
   84                 sysent = \"$sysent\"
   85                 syssw = \"$syssw\"
   86                 sysinc = \"$sysinc\"
   87                 sysarg = \"$sysarg\"
   88                 sysnames = \"$sysnames\"
   89                 syshdr = \"$syshdr\"
   90                 sysmk = \"$sysmk\"
   91                 systrace = \"$systrace\"
   92                 systracetmp = \"$systracetmp\"
   93                 systraceret = \"$systraceret\"
   94                 compat = \"$compat\"
   95                 compat4 = \"$compat4\"
   96                 compat6 = \"$compat6\"
   97                 compat7 = \"$compat7\"
   98                 syscallprefix = \"$syscallprefix\"
   99                 switchname = \"$switchname\"
  100                 namesname = \"$namesname\"
  101                 infile = \"$1\"
  102                 "'
  103 
  104                 printf "/*\n * System call switch table.\n *\n" > syssw
  105                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
  106                 printf " * $%s$\n", "FreeBSD" > syssw
  107 
  108                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  109                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
  110                 printf " * $%s$\n", "FreeBSD" > sysarg
  111 
  112                 printf "\n#ifdef %s\n\n", compat > syscompat
  113                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
  114                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
  115                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
  116 
  117                 printf "/*\n * System call names.\n *\n" > sysnames
  118                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
  119                 printf " * $%s$\n", "FreeBSD" > sysnames
  120 
  121                 printf "/*\n * System call numbers.\n *\n" > syshdr
  122                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
  123                 printf " * $%s$\n", "FreeBSD" > syshdr
  124                 printf "# FreeBSD system call names.\n" > sysmk
  125                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
  126                 printf "# $%s$\n", "FreeBSD" > sysmk
  127 
  128                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
  129                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
  130                 printf " * $%s$\n", "FreeBSD" > systrace
  131         }
  132         NR == 1 {
  133                 gsub("[$]FreeBSD: ", "", $0)
  134                 gsub(" [$]", "", $0)
  135 
  136                 printf " * created from%s\n */\n\n", $0 > syssw
  137 
  138                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
  139                 printf "struct sysent %s[] = {\n",switchname > sysent
  140 
  141                 printf " * created from%s\n */\n\n", $0 > sysarg
  142                 printf "#ifndef %s\n", sysproto_h > sysarg
  143                 printf "#define\t%s\n\n", sysproto_h > sysarg
  144                 printf "#include <sys/signal.h>\n" > sysarg
  145                 printf "#include <sys/acl.h>\n" > sysarg
  146                 printf "#include <sys/cpuset.h>\n" > sysarg
  147                 printf "#include <sys/_semaphore.h>\n" > sysarg
  148                 printf "#include <sys/ucontext.h>\n\n" > sysarg
  149                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
  150                 printf "struct proc;\n\n" > sysarg
  151                 printf "struct thread;\n\n" > sysarg
  152                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
  153                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
  154                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
  155                 printf "#define\tPADL_(t)\t0\n" > sysarg
  156                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
  157                 printf "#else\n" > sysarg
  158                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
  159                 printf "#define\tPADR_(t)\t0\n" > sysarg
  160                 printf "#endif\n\n" > sysarg
  161 
  162                 printf " * created from%s\n */\n\n", $0 > sysnames
  163                 printf "const char *%s[] = {\n", namesname > sysnames
  164 
  165                 printf " * created from%s\n */\n\n", $0 > syshdr
  166 
  167                 printf "# created from%s\nMIASM = ", $0 > sysmk
  168 
  169                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
  170                 printf "static void\nsystrace_args(int sysnum, void *params, u_int64_t *uarg, int *n_args)\n{\n" > systrace
  171                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
  172                 printf "\tswitch (sysnum) {\n" > systrace
  173 
  174                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
  175                 printf "\tswitch (sysnum) {\n" > systracetmp
  176 
  177                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
  178                 printf "\tswitch (sysnum) {\n" > systraceret
  179 
  180                 next
  181         }
  182         NF == 0 || $1 ~ /^;/ {
  183                 next
  184         }
  185         $1 ~ /^#[       ]*include/ {
  186                 print > sysinc
  187                 next
  188         }
  189         $1 ~ /^#[       ]*if/ {
  190                 print > sysent
  191                 print > sysdcl
  192                 print > sysarg
  193                 print > syscompat
  194                 print > syscompat4
  195                 print > syscompat6
  196                 print > syscompat7
  197                 print > sysnames
  198                 print > systrace
  199                 print > systracetmp
  200                 print > systraceret
  201                 savesyscall = syscall
  202                 next
  203         }
  204         $1 ~ /^#[       ]*else/ {
  205                 print > sysent
  206                 print > sysdcl
  207                 print > sysarg
  208                 print > syscompat
  209                 print > syscompat4
  210                 print > syscompat6
  211                 print > syscompat7
  212                 print > sysnames
  213                 print > systrace
  214                 print > systracetmp
  215                 print > systraceret
  216                 syscall = savesyscall
  217                 next
  218         }
  219         $1 ~ /^#/ {
  220                 print > sysent
  221                 print > sysdcl
  222                 print > sysarg
  223                 print > syscompat
  224                 print > syscompat4
  225                 print > syscompat6
  226                 print > syscompat7
  227                 print > sysnames
  228                 print > systrace
  229                 print > systracetmp
  230                 print > systraceret
  231                 next
  232         }
  233         syscall != $1 {
  234                 printf "%s: line %d: syscall number out of sync at %d\n",
  235                     infile, NR, syscall
  236                 printf "line is:\n"
  237                 print
  238                 exit 1
  239         }
  240         # Returns true if the type "name" is the first flag in the type field
  241         function type(name, flags, n) {
  242                 n = split($3, flags, /\|/)
  243                 return (n > 0 && flags[1] == name)
  244         }
  245         # Returns true if the flag "name" is set in the type field
  246         function flag(name, flags, i, n) {
  247                 n = split($3, flags, /\|/)
  248                 for (i = 1; i <= n; i++)
  249                         if (flags[i] == name)
  250                                 return 1
  251                 return 0
  252         }
  253         function align_sysent_comment(column) {
  254                 printf("\t") > sysent
  255                 column = column + 8 - column % 8
  256                 while (column < 56) {
  257                         printf("\t") > sysent
  258                         column = column + 8
  259                 }
  260         }
  261         function parserr(was, wanted) {
  262                 printf "%s: line %d: unexpected %s (expected %s)\n",
  263                     infile, NR, was, wanted
  264                 exit 1
  265         }
  266         function parseline() {
  267                 f=4                     # toss number, type, audit event
  268                 argc= 0;
  269                 argssize = "0"
  270                 if ($NF != "}") {
  271                         funcalias=$(NF-2)
  272                         argalias=$(NF-1)
  273                         rettype=$NF
  274                         end=NF-3
  275                 } else {
  276                         funcalias=""
  277                         argalias=""
  278                         rettype="int"
  279                         end=NF
  280                 }
  281                 if (flag("NODEF")) {
  282                         auditev="AUE_NULL"
  283                         funcname=$4
  284                         argssize = "AS(" $6 ")"
  285                         return
  286                 }
  287                 if ($f != "{")
  288                         parserr($f, "{")
  289                 f++
  290                 if ($end != "}")
  291                         parserr($end, "}")
  292                 end--
  293                 if ($end != ";")
  294                         parserr($end, ";")
  295                 end--
  296                 if ($end != ")")
  297                         parserr($end, ")")
  298                 end--
  299 
  300                 syscallret=$f
  301                 f++
  302 
  303                 funcname=$f
  304                 if (funcalias == "")
  305                         funcalias = funcname
  306                 if (argalias == "") {
  307                         argalias = funcname "_args"
  308                         if (flag("COMPAT"))
  309                                 argalias = "o" argalias
  310                         if (flag("COMPAT4"))
  311                                 argalias = "freebsd4_" argalias
  312                         if (flag("COMPAT6"))
  313                                 argalias = "freebsd6_" argalias
  314                         if (flag("COMPAT7"))
  315                                 argalias = "freebsd7_" argalias
  316                 }
  317                 f++
  318 
  319                 if ($f != "(")
  320                         parserr($f, ")")
  321                 f++
  322 
  323                 if (f == end) {
  324                         if ($f != "void")
  325                                 parserr($f, "argument definition")
  326                         return
  327                 }
  328 
  329                 while (f <= end) {
  330                         argc++
  331                         argtype[argc]=""
  332                         oldf=""
  333                         while (f < end && $(f+1) != ",") {
  334                                 if (argtype[argc] != "" && oldf != "*")
  335                                         argtype[argc] = argtype[argc]" ";
  336                                 argtype[argc] = argtype[argc]$f;
  337                                 oldf = $f;
  338                                 f++
  339                         }
  340                         if (argtype[argc] == "")
  341                                 parserr($f, "argument definition")
  342                         argname[argc]=$f;
  343                         f += 2;                 # skip name, and any comma
  344                 }
  345                 if (argc != 0)
  346                         argssize = "AS(" argalias ")"
  347         }
  348         {       comment = $4
  349                 if (NF < 7)
  350                         for (i = 5; i <= NF; i++)
  351                                 comment = comment " " $i
  352         }
  353 
  354         #
  355         # The AUE_ audit event identifier.
  356         #
  357         {
  358                 auditev = $2;
  359         }
  360 
  361         #
  362         # The currently-empty flags field.
  363         #
  364         {
  365                 flags = "0";
  366         }
  367 
  368         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
  369             || type("NOSTD") {
  370                 parseline()
  371                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
  372                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
  373                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
  374                 if (argc > 0) {
  375                         printf("\t\tswitch(ndx) {\n") > systracetmp
  376                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
  377                         for (i = 1; i <= argc; i++) {
  378                                 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
  379                                 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
  380                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
  381                                              i - 1, \
  382                                              argname[i], argtype[i]) > systrace
  383                                 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
  384                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
  385                                              i - 1, \
  386                                              argname[i], argtype[i]) > systrace
  387                                 else
  388                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
  389                                              i - 1, \
  390                                              argname[i], argtype[i]) > systrace
  391                         }
  392                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
  393 
  394                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
  395                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
  396                         printf("\t\tbreak;\n") > systraceret
  397                 }
  398                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
  399                 printf("\t\tbreak;\n") > systracetmp
  400                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
  401                     !flag("NODEF")) {
  402                         printf("struct %s {\n", argalias) > sysarg
  403                         for (i = 1; i <= argc; i++)
  404                                 printf("\tchar %s_l_[PADL_(%s)]; " \
  405                                     "%s %s; char %s_r_[PADR_(%s)];\n",
  406                                     argname[i], argtype[i],
  407                                     argtype[i], argname[i],
  408                                     argname[i], argtype[i]) > sysarg
  409                         printf("};\n") > sysarg
  410                 }
  411                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
  412                         printf("struct %s {\n\tregister_t dummy;\n};\n",
  413                             argalias) > sysarg
  414                 if (!flag("NOPROTO") && !flag("NODEF")) {
  415                         printf("%s\t%s(struct thread *, struct %s *)",
  416                             rettype, funcname, argalias) > sysdcl
  417                         printf(";\n") > sysdcl
  418                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
  419                             funcalias, auditev) > sysaue
  420                 }
  421                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
  422                 column = 8 + 2 + length(argssize) + 15
  423                 if (flag("NOSTD")) {
  424                         printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0, 0") > sysent
  425                         column = column + length("lkmressys") + length("AUE_NULL") + 3
  426                 } else {
  427                         printf("%s, %s, NULL, 0, 0, %s },", funcname, auditev, flags) > sysent
  428                         column = column + length(funcname) + length(auditev) + length(flags) + 3
  429                 } 
  430                 align_sysent_comment(column)
  431                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
  432                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
  433                     funcalias, syscall, funcalias) > sysnames
  434                 if (!flag("NODEF")) {
  435                         printf("#define\t%s%s\t%d\n", syscallprefix,
  436                             funcalias, syscall) > syshdr
  437                         printf(" \\\n\t%s.o", funcalias) > sysmk
  438                 }
  439                 syscall++
  440                 next
  441         }
  442         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
  443             type("COMPAT7") {
  444                 if (flag("COMPAT")) {
  445                         ncompat++
  446                         out = syscompat
  447                         outdcl = syscompatdcl
  448                         wrap = "compat"
  449                         prefix = "o"
  450                         descr = "old"
  451                 } else if (flag("COMPAT4")) {
  452                         ncompat4++
  453                         out = syscompat4
  454                         outdcl = syscompat4dcl
  455                         wrap = "compat4"
  456                         prefix = "freebsd4_"
  457                         descr = "freebsd4"
  458                 } else if (flag("COMPAT6")) {
  459                         ncompat6++
  460                         out = syscompat6
  461                         outdcl = syscompat6dcl
  462                         wrap = "compat6"
  463                         prefix = "freebsd6_"
  464                         descr = "freebsd6"
  465                 } else if (flag("COMPAT7")) {
  466                         ncompat7++
  467                         out = syscompat7
  468                         outdcl = syscompat7dcl
  469                         wrap = "compat7"
  470                         prefix = "freebsd7_"
  471                         descr = "freebsd7"
  472                 }
  473                 parseline()
  474                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
  475                     !flag("NODEF")) {
  476                         printf("struct %s {\n", argalias) > out
  477                         for (i = 1; i <= argc; i++)
  478                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
  479                                     "char %s_r_[PADR_(%s)];\n",
  480                                     argname[i], argtype[i],
  481                                     argtype[i], argname[i],
  482                                     argname[i], argtype[i]) > out
  483                         printf("};\n") > out
  484                 }
  485                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
  486                         printf("struct %s {\n\tregister_t dummy;\n};\n",
  487                             argalias) > sysarg
  488                 if (!flag("NOPROTO") && !flag("NODEF")) {
  489                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
  490                             rettype, prefix, funcname, argalias) > outdcl
  491                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
  492                             prefix, funcname, auditev) > sysaue
  493                 }
  494                 if (flag("NOSTD")) {
  495                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0 },",
  496                             "0", "lkmressys", "AUE_NULL") > sysent
  497                         align_sysent_comment(8 + 2 + length("0") + 15 + \
  498                             length("lkmressys") + length("AUE_NULL") + 3)
  499                 } else {
  500                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s },",
  501                             wrap, argssize, funcname, auditev, flags) > sysent
  502                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
  503                             length(funcname) + length(auditev) + \
  504                             length(flags) + 4)
  505                 }
  506                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
  507                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
  508                     wrap, funcalias, syscall, descr, funcalias) > sysnames
  509                 if (flag("COMPAT")) {
  510                         printf("\t\t\t\t/* %d is old %s */\n",
  511                             syscall, funcalias) > syshdr
  512                 } else if (!flag("NODEF")) {
  513                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
  514                             prefix, funcalias, syscall) > syshdr
  515                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
  516                 }
  517                 syscall++
  518                 next
  519         }
  520         type("LIBCOMPAT") {
  521                 ncompat++
  522                 parseline()
  523                 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
  524                 printf("\t{ compat(%s,%s), %s, NULL, 0, 0, %s },",
  525                     argssize, funcname, auditev, flags) > sysent
  526                 align_sysent_comment(8 + 9 + \
  527                     length(argssize) + 1 + length(funcname) + length(auditev) + length(flags) + 4)
  528                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
  529                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
  530                     funcalias, syscall, funcalias) > sysnames
  531                 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
  532                     syscallprefix, funcalias, syscall) > syshdr
  533                 printf(" \\\n\t%s.o", funcalias) > sysmk
  534                 syscall++
  535                 next
  536         }
  537         type("OBSOL") {
  538                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },") > sysent
  539                 align_sysent_comment(34)
  540                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
  541                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
  542                     $4, syscall, comment) > sysnames
  543                 printf("\t\t\t\t/* %d is obsolete %s */\n",
  544                     syscall, comment) > syshdr
  545                 syscall++
  546                 next
  547         }
  548         type("UNIMPL") {
  549                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },\t\t\t/* %d = %s */\n",
  550                     syscall, comment) > sysent
  551                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
  552                     syscall, syscall, comment) > sysnames
  553                 syscall++
  554                 next
  555         }
  556         {
  557                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
  558                 exit 1
  559         }
  560         END {
  561                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
  562 
  563                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
  564                         printf "#include \"opt_compat.h\"\n\n" > syssw
  565 
  566                 if (ncompat != 0) {
  567                         printf "\n#ifdef %s\n", compat > sysinc
  568                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
  569                         printf "#else\n" > sysinc
  570                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  571                         printf "#endif\n" > sysinc
  572                 }
  573 
  574                 if (ncompat4 != 0) {
  575                         printf "\n#ifdef %s\n", compat4 > sysinc
  576                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
  577                         printf "#else\n" > sysinc
  578                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  579                         printf "#endif\n" > sysinc
  580                 }
  581 
  582                 if (ncompat6 != 0) {
  583                         printf "\n#ifdef %s\n", compat6 > sysinc
  584                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
  585                         printf "#else\n" > sysinc
  586                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  587                         printf "#endif\n" > sysinc
  588                 }
  589 
  590                 if (ncompat7 != 0) {
  591                         printf "\n#ifdef %s\n", compat7 > sysinc
  592                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
  593                         printf "#else\n" > sysinc
  594                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  595                         printf "#endif\n" > sysinc
  596                 }
  597 
  598                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
  599                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
  600                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
  601                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
  602 
  603                 printf("\n#undef PAD_\n") > sysprotoend
  604                 printf("#undef PADL_\n") > sysprotoend
  605                 printf("#undef PADR_\n") > sysprotoend
  606                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
  607 
  608                 printf("\n") > sysmk
  609                 printf("};\n") > sysent
  610                 printf("};\n") > sysnames
  611                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
  612                     > syshdr
  613                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
  614                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
  615                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
  616         } '
  617 
  618 cat $sysinc $sysent >> $syssw
  619 cat $sysarg $sysdcl \
  620         $syscompat $syscompatdcl \
  621         $syscompat4 $syscompat4dcl \
  622         $syscompat6 $syscompat6dcl \
  623         $syscompat7 $syscompat7dcl \
  624         $sysaue $sysprotoend > $sysproto
  625 cat $systracetmp >> $systrace
  626 cat $systraceret >> $systrace
  627
Cache object: d56d42353b1c61295670365ee4d419c2
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FreeBSD/Linux Kernel Cross Reference sys/kern/makesyscalls.sh

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