#! /bin/sh - # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93 # $FreeBSD: src/sys/kern/makesyscalls.sh,v 1.39.2.4 2001/10/20 09:01:24 marcel Exp $ set -e # output files: sysnames="syscalls.c" sysproto="../sys/sysproto.h" sysunion="../sys/sysunion.h" sysproto_h=_SYS_SYSPROTO_H_ syshdr="../sys/syscall.h" sysmk="../sys/syscall.mk" syssw="init_sysent.c" syscallprefix="SYS_" switchname="sysent" namesname="syscallnames" # tmp files: sysdcl="sysent.dcl.$$" syscompat="sysent.compat.$$" syscompatdcl="sysent.compatdcl.$$" sysent="sysent.switch.$$" sysinc="sysinc.switch.$$" sysarg="sysarg.switch.$$" sysun="sysunion.switch.$$" trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun" 0 touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun case $# in 0) echo "Usage: $0 input-file " 1>&2 exit 1 ;; esac if [ -n "$2" -a -f "$2" ]; then . $2 fi sed -e ' s/\$//g :join /\\$/{a\ N s/\\\n// b join } 2,${ /^#/!s/\([{}()*,]\)/ \1 /g } ' < $1 | awk " BEGIN { sysdcl = \"$sysdcl\" sysproto = \"$sysproto\" sysproto_h = \"$sysproto_h\" syscompat = \"$syscompat\" syscompatdcl = \"$syscompatdcl\" sysent = \"$sysent\" syssw = \"$syssw\" sysinc = \"$sysinc\" sysarg = \"$sysarg\" sysun = \"$sysun\" sysnames = \"$sysnames\" syshdr = \"$syshdr\" sysmk = \"$sysmk\" compat = \"$compat\" syscallprefix = \"$syscallprefix\" switchname = \"$switchname\" namesname = \"$namesname\" infile = \"$1\" "' printf "/*\n * System call switch table.\n *\n" > syssw printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syssw printf " * by running make sysent in the same directory.\n" > syssw printf " */\n\n" > syssw printf "/*\n * System call prototypes.\n *\n" > sysarg printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysarg printf " * by running make sysent in the same directory.\n" > sysarg printf " */\n\n" > sysarg printf "#ifndef _KERNEL\n" >sysarg printf "#error \"This file should not be included by userland programs.\"\n" >sysarg printf "#endif\n\n" >sysarg printf "#ifndef %s\n", sysproto_h > sysarg printf "#define\t%s\n\n", sysproto_h > sysarg printf "#include \n" > sysarg printf "#include \n" > sysarg printf "#include \n" > sysarg printf "#include \n" > sysarg printf "#include \n" > sysarg printf "#include \n" > sysarg printf "#include \n\n" > sysarg printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg printf "/*\n * System call names.\n *\n" > sysnames printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames printf " * by running make sysent in the same directory.\n" > sysnames printf " */\n\n" > sysnames printf "const char *%s[] = {\n", namesname > sysnames printf "/*\n * System call numbers.\n *\n" > syshdr printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr printf " * by running make sysent in the same directory.\n" > syshdr printf " */\n\n" > syshdr printf "# DragonFly system call names.\n" > sysmk printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk printf "# by running make sysent in the same directory.\n" > sysmk printf "MIASM = " > sysmk printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun printf " * by running make sysent in the same directory.\n" > sysun printf " */\n\n" > sysun printf "#ifndef _KERNEL\n" >sysun printf "#error \"This file should not be included by userland programs.\"\n" >sysun printf "#endif\n\n" >sysun printf "#include \n\n" > sysun printf "union sysunion {\n" > sysun printf "\n/* The casts are bogus but will do for now. */\n" > sysent printf "struct sysent %s[] = {\n",switchname > sysent printf "\n#ifdef _KERNEL\n\n" > sysdcl printf "\n#ifdef _KERNEL\n\n" > syscompatdcl printf "struct sysmsg;\n\n" > sysdcl printf "struct sysmsg;\n\n" > syscompatdcl } NF == 0 || $1 ~ /^;/ { next } $1 ~ /^#[ ]*include/ { print > sysinc next } $1 ~ /^#[ ]*if/ { print > sysent print > sysdcl print > sysarg print > syscompat print > sysnames print > sysun savesyscall = syscall next } $1 ~ /^#[ ]*else/ { print > sysent print > sysdcl print > sysarg print > sysun print > syscompat print > sysnames syscall = savesyscall next } $1 ~ /^#/ { print > sysent print > sysdcl print > sysarg print > sysun print > syscompat print > sysnames next } syscall != $1 { printf "%s: line %d: syscall number out of sync at %d\n", infile, NR, syscall printf "line is:\n" print exit 1 } function align_sysent_comment(column) { printf("\t") > sysent column = column + 8 - column % 8 while (column < 56) { printf("\t") > sysent column = column + 8 } } function parserr(was, wanted) { printf "%s: line %d: unexpected %s (expected %s)\n", infile, NR, was, wanted exit 1 } function parseline() { f=3 # toss number and type argc= 0; argssize = "0" rsize=4 if ($NF != "}") { funcalias=$(NF-2) argalias=$(NF-1) rettype=$NF end=NF-3 } else { funcalias="" argalias="" rettype="int" end=NF } if ($2 == "NODEF") { funcname=$3 argssize = "AS(" $5 ")" return } if ($f != "{") parserr($f, "{") f++ if ($end != "}") parserr($end, "}") end-- if ($end != ";") parserr($end, ";") end-- if ($end != ")") parserr($end, ")") end-- rtype=$f f++ #function return type funcname=$f usefuncname=$f if (funcalias == "") funcalias = funcname if (argalias == "") argalias = funcname "_args" f++ if ($f != "(") parserr($f, ")") f++ if (f == end) { if ($f != "void") parserr($f, "argument definition") return } if (rtype == "caddr_t") rsize = 8 if (rtype == "size_t") rsize = 8 if (rtype == "ssize_t") rsize = 8 if (rtype == "off_t") rsize = 8 while (f <= end) { argc++ argtype[argc]="" oldf="" while (f < end && $(f+1) != ",") { if (argtype[argc] != "" && oldf != "*") argtype[argc] = argtype[argc]" "; argtype[argc] = argtype[argc]$f; oldf = $f; f++ } if (argtype[argc] == "") parserr($f, "argument definition") argname[argc]=$f; f += 2; # skip name, and any comma } if (argc != 0) argssize = "AS(" argalias ")" } { comment = $3 if (NF < 6) for (i = 4; i <= NF; i++) comment = comment " " $i } $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ || $2 == "NOIMPL" { parseline() if ((!nosys || funcname != "nosys") && \ (funcname != "lkmnosys")) { if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun printf("struct\t%s {\n", argalias) > sysarg for (i = 1; i <= argc; i++) printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", argtype[i], argname[i], argname[i], argtype[i]) > sysarg printf("};\n") > sysarg } else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ $2 != "NODEF") { printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun printf("struct\t%s {\n", argalias) > sysarg printf("\tregister_t dummy;\n") > sysarg printf("};\n") > sysarg } } if (($2 != "NOPROTO" && $2 != "NODEF" && \ (funcname != "nosys" || !nosys)) || \ (funcname == "lkmnosys" && !lkmnosys) || \ funcname == "lkmressys") { printf("%s\tsys_%s (struct sysmsg *sysmsg, const struct %s *)", rettype, funcname, argalias) > sysdcl printf(";\n") > sysdcl } if (funcname == "nosys") nosys = 1 if (funcname == "lkmnosys") lkmnosys = 1 printf("\t{ %s, %s, (sy_call_t *)", argssize, rsize) > sysent column = 8 + 2 + length(argssize) + 15 if ($2 != "NOIMPL") { printf("sys_%s },", funcname) > sysent column = column + length(funcname) + 7 } else { printf("sys_%s },", "nosys") > sysent column = column + length("nosys") + 7 } align_sysent_comment(column) printf("/* %d = %s */\n", syscall, funcalias) > sysent printf("\t\"%s\",\t\t\t/* %d = %s */\n", funcalias, syscall, funcalias) > sysnames if ($2 != "NODEF") { printf("#define\t%s%s\t%d\n", syscallprefix, funcalias, syscall) > syshdr printf(" \\\n\t%s.o", funcalias) > sysmk } syscall++ next } $2 == "OBSOL" { printf("\t{ 0, 4, (sy_call_t *)sys_nosys },") > sysent align_sysent_comment(37) printf("/* %d = obsolete %s */\n", syscall, comment) > sysent printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", $3, syscall, comment) > sysnames printf("\t\t\t\t/* %d is obsolete %s */\n", syscall, comment) > syshdr syscall++ next } $2 == "UNIMPL" { printf("\t{ 0, 4, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", syscall, comment) > sysent printf("\t\"#%d\",\t\t\t/* %d = %s */\n", syscall, syscall, comment) > sysnames syscall++ next } { printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 exit 1 } END { printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc if (ncompat != 0) printf "#define compat(n, name) 0, 4, (sy_call_t *)sys_nosys\n" > sysinc printf("\n#undef PAD_\n") > sysarg printf("\n#endif /* _KERNEL */\n") > syscompatdcl printf("\n#endif /* _KERNEL */\n") > sysdcl printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl printf("\n") > sysmk printf("};\n") > sysent printf("};\n") > sysnames printf("};\n") > sysun printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ > syshdr } ' cat $sysinc $sysent >> $syssw cat $sysarg $syscompat $syscompatdcl $sysdcl > $sysproto cat $sysun > $sysunion