#! /bin/sh - # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93 # $FreeBSD$ set -e # name of compat option: compat=COMPAT_43 # output files: sysnames="syscalls.c" sysproto="../sys/sysproto.h" sysproto_h=_SYS_SYSPROTO_H_ syshdr="../sys/syscall.h" sysmk="../sys/syscall.mk" syssw="init_sysent.c" syshide="../sys/syscall-hide.h" syscallprefix="SYS_" switchname="sysent" namesname="syscallnames" # tmp files: sysdcl="sysent.dcl.$$" syscompat="sysent.compat.$$" syscompatdcl="sysent.compatdcl.$$" sysent="sysent.switch.$$" sysinc="sysinc.switch.$$" sysarg="sysarg.switch.$$" trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg" 0 touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg case $# in 0) echo "Usage: $0 input-file <config-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\" sysnames = \"$sysnames\" syshdr = \"$syshdr\" sysmk = \"$sysmk\" compat = \"$compat\" syshide = \"$syshide\" syscallprefix = \"$syscallprefix\" switchname = \"$switchname\" namesname = \"$namesname\" infile = \"$1\" "' printf "/*\n * System call switch table.\n *\n" > syssw printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw printf " * \$\FreeBSD\$\n" > syssw printf "/*\n * System call prototypes.\n *\n" > sysarg printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg printf " * \$\FreeBSD\$\n" > sysarg printf "\n#ifdef %s\n\n", compat > syscompat printf "/*\n * System call names.\n *\n" > sysnames printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames printf " * \$\FreeBSD\$\n" > sysnames printf "/*\n * System call numbers.\n *\n" > syshdr printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr printf " * \$\FreeBSD\$\n" > syshdr printf "# FreeBSD system call names.\n" > sysmk printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk printf "# \$\FreeBSD\$\n" > sysmk printf "/*\n * System call hiders.\n *\n" > syshide printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide printf " * \$\FreeBSD\$\n" > syshide } NR == 1 { gsub("[$]FreeBSD: ", "", $0) gsub(" [$]", "", $0) printf " * created from%s\n */\n\n", $0 > syssw printf "\n/* The casts are bogus but will do for now. */\n" > sysent printf "struct sysent %s[] = {\n",switchname > sysent printf " * created from%s\n */\n\n", $0 > sysarg printf "#ifndef %s\n", sysproto_h > sysarg printf "#define\t%s\n\n", sysproto_h > sysarg printf "#include <sys/signal.h>\n\n" > sysarg printf "#include <sys/acl.h>\n\n" > sysarg printf "struct proc;\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 " * created from%s\n */\n\n", $0 > sysnames printf "char *%s[] = {\n", namesname > sysnames printf " * created from%s\n */\n\n", $0 > syshdr printf "# created from%s\nMIASM = ", $0 > sysmk printf " * created from%s\n */\n\n", $0 > syshide next } NF == 0 || $1 ~ /^;/ { next } $1 ~ /^#[ ]*include/ { print > sysinc next } $1 ~ /^#[ ]*if/ { print > sysent print > sysdcl print > sysarg print > syscompat print > sysnames print > syshide savesyscall = syscall next } $1 ~ /^#[ ]*else/ { print > sysent print > sysdcl print > sysarg print > syscompat print > sysnames print > syshide syscall = savesyscall next } $1 ~ /^#/ { print > sysent print > sysdcl print > sysarg print > syscompat print > sysnames print > syshide next } syscall != $1 { printf "%s: line %d: syscall number out of sync at %d\n", infile, NR, syscall printf "line is:\n" print exit 1 } function align_sysent_comment(column) { printf("\t") > sysent column = column + 8 - column % 8 while (column < 56) { printf("\t") > sysent column = column + 8 } } function parserr(was, wanted) { printf "%s: line %d: unexpected %s (expected %s)\n", infile, NR, was, wanted exit 1 } function parseline() { f=4 # toss number and type argc= 0; argssize = "0" if ($NF != "}") { funcalias=$(NF-2) argalias=$(NF-1) rettype=$NF end=NF-3 } else { funcalias="" argalias="" rettype="int" end=NF } if ($2 == "NODEF") { funcname=$4 return } if ($f != "{") parserr($f, "{") f++ if ($end != "}") parserr($end, "}") end-- if ($end != ";") parserr($end, ";") end-- if ($end != ")") parserr($end, ")") end-- f++ #function return type funcname=$f if (funcalias == "") funcalias = funcname if (argalias == "") { argalias = funcname "_args" if ($2 == "COMPAT") argalias = "o" argalias } f++ if ($f != "(") parserr($f, ")") f++ if (f == end) { if ($f != "void") parserr($f, "argument definition") return } 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 = $4 if (NF < 7) for (i = 5; i <= NF; i++) comment = comment " " $i } # if the "MPSAFE" keyword is found, note it and shift the line mpsafe = "" $2 == "MPSAFE" { for (i = 2; i <= NF; i++) $i = $(i + 1); NF -= 1; mpsafe = "SYF_MPSAFE | " } $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ || $2 == "NOIMPL" || $2 == "NOSTD" { parseline() if ((!nosys || funcname != "nosys") && \ (funcname != "lkmnosys") && (funcname != "lkmressys")) { if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 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") printf("struct\t%s {\n\tregister_t dummy;\n};\n", argalias) > sysarg } if ($2 != "NOPROTO" && (!nosys || funcname != "nosys") && \ (!lkmnosys || funcname != "lkmnosys")) { printf("%s\t%s __P((struct proc *, 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 *)", mpsafe, argssize) > sysent column = 8 + 2 + length(mpsafe) + length(argssize) + 15 if ($2 == "NOIMPL") { printf("%s },", "nosys") > sysent column = column + length("nosys") + 3 } else if ($2 == "NOSTD") { printf("%s },", "lkmressys") > sysent column = column + length("lkmnosys") + 3 } else { printf("%s },", funcname) > sysent column = column + length(funcname) + 3 } 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 } if ($3 != "NOHIDE") printf("HIDE_%s(%s)\n", $3, funcname) > syshide syscall++ next } $2 == "COMPAT" || $2 == "CPT_NOA" { ncompat++ parseline() if (argc != 0 && $2 != "CPT_NOA") { printf("struct\t%s {\n", argalias) > syscompat for (i = 1; i <= argc; i++) printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", argtype[i], argname[i], argname[i], argtype[i]) > syscompat printf("};\n") > syscompat } else if($2 != "CPT_NOA") printf("struct\t%s {\n\tregister_t dummy;\n};\n", argalias) > sysarg printf("%s\to%s __P((struct proc *, struct %s *));\n", rettype, funcname, argalias) > syscompatdcl printf("\t{ compat(%s%s,%s) },", mpsafe, argssize, funcname) > sysent align_sysent_comment(8 + 9 + length(mpsafe) + \ length(argssize) + 1 + length(funcname) + 4) printf("/* %d = old %s */\n", syscall, funcalias) > sysent printf("\t\"old.%s\",\t\t/* %d = old %s */\n", funcalias, syscall, funcalias) > sysnames printf("\t\t\t\t/* %d is old %s */\n", syscall, funcalias) > syshdr if ($3 != "NOHIDE") printf("HIDE_%s(%s)\n", $3, funcname) > syshide syscall++ next } $2 == "LIBCOMPAT" { ncompat++ parseline() printf("%s\to%s();\n", rettype, funcname) > syscompatdcl printf("\t{ compat(%s%s,%s) },", mpsafe, argssize, funcname) > sysent align_sysent_comment(8 + 9 + length(mpsafe) + \ length(argssize) + 1 + length(funcname) + 4) printf("/* %d = old %s */\n", syscall, funcalias) > sysent printf("\t\"old.%s\",\t\t/* %d = old %s */\n", funcalias, syscall, funcalias) > sysnames printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", syscallprefix, funcalias, syscall) > syshdr printf(" \\\n\t%s.o", funcalias) > sysmk if ($3 != "NOHIDE") printf("HIDE_%s(%s)\n", $3, funcname) > syshide syscall++ next } $2 == "OBSOL" { printf("\t{ 0, (sy_call_t *)nosys },") > sysent align_sysent_comment(34) printf("/* %d = obsolete %s */\n", syscall, comment) > sysent printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", $4, syscall, comment) > sysnames printf("\t\t\t\t/* %d is obsolete %s */\n", syscall, comment) > syshdr if ($3 != "NOHIDE") printf("HIDE_%s(%s)\n", $3, $4) > syshide syscall++ next } $2 == "UNIMPL" { printf("\t{ 0, (sy_call_t *)nosys },\t\t\t/* %d = %s */\n", syscall, comment) > sysent printf("\t\"#%d\",\t\t\t/* %d = %s */\n", syscall, syscall, comment) > sysnames if ($3 != "NOHIDE") printf("HIDE_%s(%s)\n", $3, $4) > syshide 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 "#include \"opt_compat.h\"\n\n" > syssw printf "\n#ifdef %s\n", compat > sysinc printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc printf "#else\n" > sysinc printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc printf "#endif\n" > sysinc } printf("\n#endif /* %s */\n\n", compat) > syscompatdcl printf("#undef PAD_\n") > syscompatdcl printf("\n#endif /* !%s */\n", sysproto_h) > syscompatdcl printf("\n") > sysmk printf("};\n") > sysent printf("};\n") > sysnames printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ > syshdr } ' cat $sysinc $sysent >> $syssw cat $sysarg $sysdcl $syscompat $syscompatdcl > $sysproto