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 compat12=COMPAT_FREEBSD12
   15 
   16 # output files:
   17 sysnames="syscalls.c"
   18 sysproto="../sys/sysproto.h"
   19 sysproto_h=_SYS_SYSPROTO_H_
   20 syshdr="../sys/syscall.h"
   21 sysmk="../sys/syscall.mk"
   22 syssw="init_sysent.c"
   23 syscallprefix="SYS_"
   24 switchname="sysent"
   25 namesname="syscallnames"
   26 systrace="systrace_args.c"
   27 
   28 # tmp files:
   29 sysaue="sysent.aue.$$"
   30 sysdcl="sysent.dcl.$$"
   31 syscompat="sysent.compat.$$"
   32 syscompatdcl="sysent.compatdcl.$$"
   33 syscompat4="sysent.compat4.$$"
   34 syscompat4dcl="sysent.compat4dcl.$$"
   35 syscompat6="sysent.compat6.$$"
   36 syscompat6dcl="sysent.compat6dcl.$$"
   37 syscompat7="sysent.compat7.$$"
   38 syscompat7dcl="sysent.compat7dcl.$$"
   39 syscompat10="sysent.compat10.$$"
   40 syscompat10dcl="sysent.compat10dcl.$$"
   41 syscompat11="sysent.compat11.$$"
   42 syscompat11dcl="sysent.compat11dcl.$$"
   43 syscompat12="sysent.compat12.$$"
   44 syscompat12dcl="sysent.compat12dcl.$$"
   45 sysent="sysent.switch.$$"
   46 sysinc="sysinc.switch.$$"
   47 sysarg="sysarg.switch.$$"
   48 sysprotoend="sysprotoend.$$"
   49 systracetmp="systrace.$$"
   50 systraceret="systraceret.$$"
   51 capabilities_conf="capabilities.conf"
   52 
   53 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $syscompat12 $syscompat12dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
   54 
   55 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $syscompat12 $syscompat12dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
   56 
   57 case $# in
   58     0)  echo "usage: $0 input-file <config-file>" 1>&2
   59         exit 1
   60         ;;
   61 esac
   62 
   63 1>&2 echo "$0: This script has been replaced by sys/tools/makesyscalls.lua and"
   64 1>&2 echo "$0: will be removed before FreeBSD 13.  See also: sys/conf/sysent.mk"
   65 
   66 if [ -n "$2" ]; then
   67         . "$2"
   68 fi
   69 
   70 if [ -n "$capenabled" ]; then
   71         # do nothing
   72 elif [ -r $capabilities_conf ]; then
   73         capenabled=`egrep -v '^#|^$' $capabilities_conf`
   74         capenabled=`echo $capenabled | sed 's/ /,/g'`
   75 else
   76         capenabled=""
   77 fi
   78 
   79 sed -e '
   80         # FreeBSD ID, includes, comments, and blank lines
   81         /.*\$FreeBSD/b done_joining
   82         /^[#;]/b done_joining
   83         /^$/b done_joining
   84 
   85         # Join lines ending in backslash
   86 :joining
   87         /\\$/{a\
   88 
   89         N
   90         s/\\\n//
   91         b joining
   92         }
   93 
   94         # OBSOL, etc lines without function signatures
   95         /^[0-9][^{]*$/b done_joining
   96 
   97         # Join incomplete signatures.  The { must appear on the first line
   98         # and the } must appear on the last line (modulo lines joined by
   99         # backslashes).
  100         /^[^}]*$/{a\
  101 
  102         N
  103         s/\n//
  104         b joining
  105         }
  106 :done_joining
  107 2,${
  108         /^#/!s/\([{}()*,]\)/ \1 /g
  109 }
  110 ' < $1 | awk "
  111         BEGIN {
  112                 sysaue = \"$sysaue\"
  113                 sysdcl = \"$sysdcl\"
  114                 sysproto = \"$sysproto\"
  115                 sysprotoend = \"$sysprotoend\"
  116                 sysproto_h = \"$sysproto_h\"
  117                 syscompat = \"$syscompat\"
  118                 syscompatdcl = \"$syscompatdcl\"
  119                 syscompat4 = \"$syscompat4\"
  120                 syscompat4dcl = \"$syscompat4dcl\"
  121                 syscompat6 = \"$syscompat6\"
  122                 syscompat6dcl = \"$syscompat6dcl\"
  123                 syscompat7 = \"$syscompat7\"
  124                 syscompat7dcl = \"$syscompat7dcl\"
  125                 syscompat10 = \"$syscompat10\"
  126                 syscompat10dcl = \"$syscompat10dcl\"
  127                 syscompat11 = \"$syscompat11\"
  128                 syscompat11dcl = \"$syscompat11dcl\"
  129                 syscompat12 = \"$syscompat12\"
  130                 syscompat12dcl = \"$syscompat12dcl\"
  131                 sysent = \"$sysent\"
  132                 syssw = \"$syssw\"
  133                 sysinc = \"$sysinc\"
  134                 sysarg = \"$sysarg\"
  135                 sysnames = \"$sysnames\"
  136                 syshdr = \"$syshdr\"
  137                 sysmk = \"$sysmk\"
  138                 systrace = \"$systrace\"
  139                 systracetmp = \"$systracetmp\"
  140                 systraceret = \"$systraceret\"
  141                 compat = \"$compat\"
  142                 compat4 = \"$compat4\"
  143                 compat6 = \"$compat6\"
  144                 compat7 = \"$compat7\"
  145                 compat10 = \"$compat10\"
  146                 compat11 = \"$compat11\"
  147                 compat12 = \"$compat12\"
  148                 syscallprefix = \"$syscallprefix\"
  149                 switchname = \"$switchname\"
  150                 namesname = \"$namesname\"
  151                 infile = \"$1\"
  152                 abi_func_prefix = \"$abi_func_prefix\"
  153                 capenabled_string = \"$capenabled\"
  154                 "'
  155 
  156                 # Avoid a literal generated file tag here.
  157                 generated = "@" "generated";
  158 
  159                 split(capenabled_string, capenabled, ",");
  160 
  161                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
  162                 printf "struct sysent %s[] = {\n",switchname > sysent
  163 
  164                 printf "/*\n * System call switch table.\n *\n" > syssw
  165                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syssw
  166                 printf " * $%s$\n", "FreeBSD" > syssw
  167                 printf " */\n\n" > syssw
  168 
  169                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  170                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysarg
  171                 printf " * $%s$\n", "FreeBSD" > sysarg
  172                 printf " */\n\n" > sysarg
  173                 printf "#ifndef %s\n", sysproto_h > sysarg
  174                 printf "#define\t%s\n\n", sysproto_h > sysarg
  175                 printf "#include <sys/signal.h>\n" > sysarg
  176                 printf "#include <sys/acl.h>\n" > sysarg
  177                 printf "#include <sys/cpuset.h>\n" > sysarg
  178                 printf "#include <sys/domainset.h>\n" > sysarg
  179                 printf "#include <sys/_ffcounter.h>\n" > sysarg
  180                 printf "#include <sys/_semaphore.h>\n" > sysarg
  181                 printf "#include <sys/ucontext.h>\n" > sysarg
  182                 printf "#include <sys/wait.h>\n\n" > sysarg
  183                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
  184                 printf "struct proc;\n\n" > sysarg
  185                 printf "struct thread;\n\n" > sysarg
  186                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
  187                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
  188                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
  189                 printf "#define\tPADL_(t)\t0\n" > sysarg
  190                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
  191                 printf "#else\n" > sysarg
  192                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
  193                 printf "#define\tPADR_(t)\t0\n" > sysarg
  194                 printf "#endif\n\n" > sysarg
  195 
  196                 printf "\n#ifdef %s\n\n", compat > syscompat
  197                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
  198                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
  199                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
  200                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
  201                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
  202                 printf "\n#ifdef %s\n\n", compat12 > syscompat12
  203 
  204                 printf "/*\n * System call names.\n *\n" > sysnames
  205                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysnames
  206                 printf " * $%s$\n", "FreeBSD" > sysnames
  207                 printf " */\n\n" > sysnames
  208                 printf "const char *%s[] = {\n", namesname > sysnames
  209 
  210                 printf "/*\n * System call numbers.\n *\n" > syshdr
  211                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syshdr
  212                 printf " * $%s$\n", "FreeBSD" > syshdr
  213                 printf " */\n\n" > syshdr
  214 
  215                 printf "# FreeBSD system call object files.\n" > sysmk
  216                 printf "# DO NOT EDIT-- this file is automatically " generated ".\n" > sysmk
  217                 printf "# $%s$\n", "FreeBSD" > sysmk
  218                 printf "MIASM = " > sysmk
  219 
  220                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
  221                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > systrace
  222                 printf " * $%s$\n", "FreeBSD" > systrace
  223                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
  224                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
  225                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
  226                 printf "\tswitch (sysnum) {\n" > systrace
  227 
  228                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
  229                 printf "\tswitch (sysnum) {\n" > systracetmp
  230 
  231                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
  232                 printf "\tswitch (sysnum) {\n" > systraceret
  233         }
  234         NR == 1 {
  235                 next
  236         }
  237         NF == 0 || $1 ~ /^;/ {
  238                 next
  239         }
  240         $1 ~ /^#[       ]*include/ {
  241                 print > sysinc
  242                 next
  243         }
  244         $1 ~ /^#[       ]*if/ {
  245                 print > sysent
  246                 print > sysdcl
  247                 print > sysarg
  248                 print > syscompat
  249                 print > syscompat4
  250                 print > syscompat6
  251                 print > syscompat7
  252                 print > syscompat10
  253                 print > syscompat11
  254                 print > syscompat12
  255                 print > sysnames
  256                 print > systrace
  257                 print > systracetmp
  258                 print > systraceret
  259                 savesyscall = syscall
  260                 next
  261         }
  262         $1 ~ /^#[       ]*else/ {
  263                 print > sysent
  264                 print > sysdcl
  265                 print > sysarg
  266                 print > syscompat
  267                 print > syscompat4
  268                 print > syscompat6
  269                 print > syscompat7
  270                 print > syscompat10
  271                 print > syscompat11
  272                 print > syscompat12
  273                 print > sysnames
  274                 print > systrace
  275                 print > systracetmp
  276                 print > systraceret
  277                 syscall = savesyscall
  278                 next
  279         }
  280         $1 ~ /^#/ {
  281                 print > sysent
  282                 print > sysdcl
  283                 print > sysarg
  284                 print > syscompat
  285                 print > syscompat4
  286                 print > syscompat6
  287                 print > syscompat7
  288                 print > syscompat10
  289                 print > syscompat11
  290                 print > syscompat12
  291                 print > sysnames
  292                 print > systrace
  293                 print > systracetmp
  294                 print > systraceret
  295                 next
  296         }
  297         # Returns true if the type "name" is the first flag in the type field
  298         function type(name, flags, n) {
  299                 n = split($3, flags, /\|/)
  300                 return (n > 0 && flags[1] == name)
  301         }
  302         # Returns true if the flag "name" is set in the type field
  303         function flag(name, flags, i, n) {
  304                 n = split($3, flags, /\|/)
  305                 for (i = 1; i <= n; i++)
  306                         if (flags[i] == name)
  307                                 return 1
  308                 return 0
  309         }
  310         {
  311                 n = split($1, syscall_range, /-/)
  312                 if (n == 1) {
  313                         syscall_range[2] = syscall_range[1]
  314                 } else if (n == 2) {
  315                         if (!type("UNIMPL")) {
  316                                 printf "%s: line %d: range permitted only with UNIMPL\n",
  317                                     infile, NR
  318                                 exit 1
  319                         }
  320                 } else {
  321                         printf "%s: line %d: invalid syscall number or range %s\n",
  322                             infile, NR, $1
  323                         exit 1
  324                 }
  325         }
  326         syscall != syscall_range[1] {
  327                 printf "%s: line %d: syscall number out of sync at %d\n",
  328                     infile, NR, syscall
  329                 printf "line is:\n"
  330                 print
  331                 exit 1
  332         }
  333         function align_sysent_comment(column) {
  334                 printf("\t") > sysent
  335                 column = column + 8 - column % 8
  336                 while (column < 56) {
  337                         printf("\t") > sysent
  338                         column = column + 8
  339                 }
  340         }
  341         function parserr(was, wanted) {
  342                 printf "%s: line %d: unexpected %s (expected %s)\n",
  343                     infile, NR, was, wanted
  344                 exit 1
  345         }
  346         function parseline() {
  347                 f=4                     # toss number, type, audit event
  348                 ret_inc = 0
  349                 argc= 0;
  350                 argssize = "0"
  351                 thr_flag = "SY_THR_STATIC"
  352                 if (flag("NOTSTATIC")) {
  353                         thr_flag = "SY_THR_ABSENT"
  354                 }
  355                 if ($NF != "}") {
  356                         funcalias=$(NF-2)
  357                         argalias=$(NF-1)
  358                         rettype=$NF
  359                         end=NF-3
  360                 } else {
  361                         funcalias=""
  362                         argalias=""
  363                         rettype="int"
  364                         if ($(f+2) == "*") {
  365                                 ret_inc = 1
  366                         }
  367                         end=NF
  368                 }
  369                 if (flag("NODEF")) {
  370                         auditev="AUE_NULL"
  371                         funcname=$(4 + ret_inc)
  372                         argssize = "AS(" $(6 + ret_inc) ")"
  373                         return
  374                 }
  375                 if ($f != "{")
  376                         parserr($f, "{")
  377                 f++
  378                 if ($end != "}")
  379                         parserr($end, "}")
  380                 end--
  381                 if ($end != ";")
  382                         parserr($end, ";")
  383                 end--
  384                 if ($end != ")")
  385                         parserr($end, ")")
  386                 end--
  387 
  388                 syscallret=$f
  389                 f++
  390                 while (ret_inc > 0) {
  391                         syscallret=syscallret " " $f
  392                         f++
  393                         ret_inc--
  394                 }
  395 
  396                 funcname=$f
  397 
  398                 #
  399                 # We now know the func name, so define a flags field for it.
  400                 # Do this before any other processing as we may return early
  401                 # from it.
  402                 #
  403                 for (cap in capenabled) {
  404                         if (funcname == capenabled[cap] ||
  405                             funcname == abi_func_prefix capenabled[cap]) {
  406                                 flags = "SYF_CAPENABLED";
  407                                 break;
  408                         }
  409                 }
  410 
  411                 if (funcalias == "")
  412                         funcalias = funcname
  413                 if (argalias == "") {
  414                         argalias = funcname "_args"
  415                         if (flag("COMPAT"))
  416                                 argalias = "o" argalias
  417                         if (flag("COMPAT4"))
  418                                 argalias = "freebsd4_" argalias
  419                         if (flag("COMPAT6"))
  420                                 argalias = "freebsd6_" argalias
  421                         if (flag("COMPAT7"))
  422                                 argalias = "freebsd7_" argalias
  423                         if (flag("COMPAT10"))
  424                                 argalias = "freebsd10_" argalias
  425                         if (flag("COMPAT11"))
  426                                 argalias = "freebsd11_" argalias
  427                         if (flag("COMPAT12"))
  428                                 argalias = "freebsd12_" argalias
  429                 }
  430                 f++
  431 
  432                 if ($f != "(")
  433                         parserr($f, ")")
  434                 f++
  435 
  436                 if (f == end) {
  437                         if ($f != "void")
  438                                 parserr($f, "argument definition")
  439                         return
  440                 }
  441 
  442                 while (f <= end) {
  443                         argc++
  444                         argtype[argc]=""
  445                         oldf=""
  446                         while (f < end && $(f+1) != ",") {
  447                                 if (argtype[argc] != "" && oldf != "*")
  448                                         argtype[argc] = argtype[argc]" ";
  449                                 argtype[argc] = argtype[argc]$f;
  450                                 oldf = $f;
  451                                 f++
  452                         }
  453                         if (argtype[argc] == "")
  454                                 parserr($f, "argument definition")
  455 
  456                         # The parser adds space around parens.
  457                         # Remove it from annotations.
  458                         gsub(/ \( /, "(", argtype[argc]);
  459                         gsub(/ \)/, ")", argtype[argc]);
  460 
  461                         #remove annotations
  462                         gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
  463                         gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
  464 
  465                         argname[argc]=$f;
  466                         f += 2;                 # skip name, and any comma
  467                 }
  468                 if (argc != 0)
  469                         argssize = "AS(" argalias ")"
  470         }
  471         {       comment = $4
  472                 if (NF < 7)
  473                         for (i = 5; i <= NF; i++)
  474                                 comment = comment " " $i
  475         }
  476 
  477         #
  478         # The AUE_ audit event identifier.
  479         #
  480         {
  481                 auditev = $2;
  482         }
  483 
  484         #
  485         # The flags, if any.
  486         #
  487         {
  488                 flags = "0";
  489         }
  490 
  491         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
  492             || type("NOSTD") {
  493                 parseline()
  494                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
  495                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
  496                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
  497                 if (argc > 0) {
  498                         printf("\t\tswitch(ndx) {\n") > systracetmp
  499                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
  500                         for (i = 1; i <= argc; i++) {
  501                                 arg = argtype[i]
  502                                 sub("__restrict$", "", arg)
  503                                 if (index(arg, "*") > 0)
  504                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
  505                                 else
  506                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
  507                                 if (index(arg, "*") > 0 || arg == "caddr_t")
  508                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
  509                                              i - 1, \
  510                                              argname[i], arg) > systrace
  511                                 else if (arg == "union l_semun")
  512                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
  513                                              i - 1, \
  514                                              argname[i], arg) > systrace
  515                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
  516                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
  517                                              i - 1, \
  518                                              argname[i], arg) > systrace
  519                                 else
  520                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
  521                                              i - 1, \
  522                                              argname[i], arg) > systrace
  523                         }
  524                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
  525 
  526                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
  527                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
  528                         printf("\t\tbreak;\n") > systraceret
  529                 }
  530                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
  531                 printf("\t\tbreak;\n") > systracetmp
  532                 if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF")) {
  533                         if (argc != 0) {
  534                                 printf("struct %s {\n", argalias) > sysarg
  535                                 for (i = 1; i <= argc; i++)
  536                                         printf("\tchar %s_l_[PADL_(%s)]; " \
  537                                             "%s %s; char %s_r_[PADR_(%s)];\n",
  538                                             argname[i], argtype[i],
  539                                             argtype[i], argname[i],
  540                                             argname[i], argtype[i]) > sysarg
  541                                 printf("};\n") > sysarg
  542                         } else
  543                                 printf("struct %s {\n\tregister_t dummy;\n};\n",
  544                                     argalias) > sysarg
  545                 }
  546                 if (!flag("NOPROTO") && !flag("NODEF")) {
  547                         if (funcname == "nosys" || funcname == "lkmnosys" ||
  548                             funcname == "sysarch" || funcname ~ /^freebsd/ || 
  549                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
  550                                 printf("%s\t%s(struct thread *, struct %s *)",
  551                                     rettype, funcname, argalias) > sysdcl
  552                         } else {
  553                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
  554                                     rettype, funcname, argalias) > sysdcl
  555                         } 
  556                         printf(";\n") > sysdcl
  557                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
  558                             funcalias, auditev) > sysaue
  559                 }
  560                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
  561                 column = 8 + 2 + length(argssize) + 15
  562                 if (flag("NOSTD")) {
  563                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
  564                         column = column + length("lkmressys") + length("AUE_NULL") + 3
  565                 } else {
  566                         if (funcname == "nosys" || funcname == "sysarch" || 
  567                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
  568                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
  569                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
  570                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 
  571                         } else {
  572                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
  573                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
  574                         } 
  575                 } 
  576                 align_sysent_comment(column)
  577                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
  578                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
  579                     funcalias, syscall, funcalias) > sysnames
  580                 if (!flag("NODEF")) {
  581                         printf("#define\t%s%s\t%d\n", syscallprefix,
  582                             funcalias, syscall) > syshdr
  583                         printf(" \\\n\t%s.o", funcalias) > sysmk
  584                 }
  585                 syscall++
  586                 next
  587         }
  588         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
  589             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") || \
  590             type("COMPAT12") {
  591                 if (flag("COMPAT")) {
  592                         ncompat++
  593                         out = syscompat
  594                         outdcl = syscompatdcl
  595                         wrap = "compat"
  596                         prefix = "o"
  597                         descr = "old"
  598                 } else if (flag("COMPAT4")) {
  599                         ncompat4++
  600                         out = syscompat4
  601                         outdcl = syscompat4dcl
  602                         wrap = "compat4"
  603                         prefix = "freebsd4_"
  604                         descr = "freebsd4"
  605                 } else if (flag("COMPAT6")) {
  606                         ncompat6++
  607                         out = syscompat6
  608                         outdcl = syscompat6dcl
  609                         wrap = "compat6"
  610                         prefix = "freebsd6_"
  611                         descr = "freebsd6"
  612                 } else if (flag("COMPAT7")) {
  613                         ncompat7++
  614                         out = syscompat7
  615                         outdcl = syscompat7dcl
  616                         wrap = "compat7"
  617                         prefix = "freebsd7_"
  618                         descr = "freebsd7"
  619                 } else if (flag("COMPAT10")) {
  620                         ncompat10++
  621                         out = syscompat10
  622                         outdcl = syscompat10dcl
  623                         wrap = "compat10"
  624                         prefix = "freebsd10_"
  625                         descr = "freebsd10"
  626                 } else if (flag("COMPAT11")) {
  627                         ncompat11++
  628                         out = syscompat11
  629                         outdcl = syscompat11dcl
  630                         wrap = "compat11"
  631                         prefix = "freebsd11_"
  632                         descr = "freebsd11"
  633                 } else if (flag("COMPAT12")) {
  634                         ncompat12++
  635                         out = syscompat12
  636                         outdcl = syscompat12dcl
  637                         wrap = "compat12"
  638                         prefix = "freebsd12_"
  639                         descr = "freebsd12"
  640                 }
  641                 parseline()
  642                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
  643                     !flag("NODEF")) {
  644                         printf("struct %s {\n", argalias) > out
  645                         for (i = 1; i <= argc; i++)
  646                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
  647                                     "char %s_r_[PADR_(%s)];\n",
  648                                     argname[i], argtype[i],
  649                                     argtype[i], argname[i],
  650                                     argname[i], argtype[i]) > out
  651                         printf("};\n") > out
  652                 }
  653                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
  654                         printf("struct %s {\n\tregister_t dummy;\n};\n",
  655                             argalias) > sysarg
  656                 if (!flag("NOPROTO") && !flag("NODEF")) {
  657                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
  658                             rettype, prefix, funcname, argalias) > outdcl
  659                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
  660                             prefix, funcname, auditev) > sysaue
  661                 }
  662                 if (flag("NOSTD")) {
  663                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
  664                             "0", "lkmressys", "AUE_NULL") > sysent
  665                         align_sysent_comment(8 + 2 + length("0") + 15 + \
  666                             length("lkmressys") + length("AUE_NULL") + 3)
  667                 } else {
  668                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
  669                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
  670                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
  671                             length(funcname) + length(auditev) + \
  672                             length(flags) + 4)
  673                 }
  674                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
  675                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
  676                     wrap, funcalias, syscall, descr, funcalias) > sysnames
  677                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
  678                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
  679                         printf("\t\t\t\t/* %d is %s %s */\n",
  680                             syscall, descr, funcalias) > syshdr
  681                 } else if (!flag("NODEF")) {
  682                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
  683                             prefix, funcalias, syscall) > syshdr
  684                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
  685                 }
  686                 syscall++
  687                 next
  688         }
  689         type("OBSOL") {
  690                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
  691                 align_sysent_comment(34)
  692                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
  693                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
  694                     $4, syscall, comment) > sysnames
  695                 printf("\t\t\t\t/* %d is obsolete %s */\n",
  696                     syscall, comment) > syshdr
  697                 syscall++
  698                 next
  699         }
  700         type("UNIMPL") {
  701                 while (syscall <= syscall_range[2]) {
  702                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
  703                             syscall, comment) > sysent
  704                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
  705                             syscall, syscall, comment) > sysnames
  706                         syscall++
  707                 }
  708                 next
  709         }
  710         {
  711                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
  712                 exit 1
  713         }
  714         END {
  715                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
  716 
  717                 if (ncompat != 0) {
  718                         printf "\n#ifdef %s\n", compat > sysinc
  719                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
  720                         printf "#else\n" > sysinc
  721                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  722                         printf "#endif\n" > sysinc
  723                 }
  724 
  725                 if (ncompat4 != 0) {
  726                         printf "\n#ifdef %s\n", compat4 > sysinc
  727                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
  728                         printf "#else\n" > sysinc
  729                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  730                         printf "#endif\n" > sysinc
  731                 }
  732 
  733                 if (ncompat6 != 0) {
  734                         printf "\n#ifdef %s\n", compat6 > sysinc
  735                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
  736                         printf "#else\n" > sysinc
  737                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  738                         printf "#endif\n" > sysinc
  739                 }
  740 
  741                 if (ncompat7 != 0) {
  742                         printf "\n#ifdef %s\n", compat7 > sysinc
  743                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
  744                         printf "#else\n" > sysinc
  745                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  746                         printf "#endif\n" > sysinc
  747                 }
  748                 if (ncompat10 != 0) {
  749                         printf "\n#ifdef %s\n", compat10 > sysinc
  750                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
  751                         printf "#else\n" > sysinc
  752                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  753                         printf "#endif\n" > sysinc
  754                 }
  755                 if (ncompat11 != 0) {
  756                         printf "\n#ifdef %s\n", compat11 > sysinc
  757                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
  758                         printf "#else\n" > sysinc
  759                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  760                         printf "#endif\n" > sysinc
  761                 }
  762                 if (ncompat12 != 0) {
  763                         printf "\n#ifdef %s\n", compat12 > sysinc
  764                         printf "#define compat12(n, name) n, (sy_call_t *)__CONCAT(freebsd12_,name)\n" > sysinc
  765                         printf "#else\n" > sysinc
  766                         printf "#define compat12(n, name) 0, (sy_call_t *)nosys\n" > sysinc
  767                         printf "#endif\n" > sysinc
  768                 }
  769 
  770                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
  771                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
  772                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
  773                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
  774                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
  775                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
  776                 printf("\n#endif /* %s */\n\n", compat12) > syscompat12dcl
  777 
  778                 printf("\n#undef PAD_\n") > sysprotoend
  779                 printf("#undef PADL_\n") > sysprotoend
  780                 printf("#undef PADR_\n") > sysprotoend
  781                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
  782 
  783                 printf("\n") > sysmk
  784                 printf("};\n") > sysent
  785                 printf("};\n") > sysnames
  786                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
  787                     > syshdr
  788                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
  789                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
  790                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
  791         } '
  792 
  793 cat $sysinc $sysent >> $syssw
  794 cat $sysarg $sysdcl \
  795         $syscompat $syscompatdcl \
  796         $syscompat4 $syscompat4dcl \
  797         $syscompat6 $syscompat6dcl \
  798         $syscompat7 $syscompat7dcl \
  799         $syscompat10 $syscompat10dcl \
  800         $syscompat11 $syscompat11dcl \
  801         $syscompat12 $syscompat12dcl \
  802         $sysaue $sysprotoend > $sysproto
  803 cat $systracetmp >> $systrace
  804 cat $systraceret >> $systrace
  805
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FreeBSD/Linux Kernel Cross Reference sys/kern/makesyscalls.sh

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