1#! /bin/sh - 2# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93 3# $FreeBSD: src/sys/kern/makesyscalls.sh,v 1.39.2.4 2001/10/20 09:01:24 marcel Exp $ 4 5set -e 6 7# output files: 8sysnames="syscalls.c" 9sysproto="../sys/sysproto.h" 10sysunion="../sys/sysunion.h" 11sysproto_h=_SYS_SYSPROTO_H_ 12syshdr="../sys/syscall.h" 13sysmk="../sys/syscall.mk" 14syssw="init_sysent.c" 15syscallprefix="SYS_" 16switchname="sysent" 17namesname="syscallnames" 18 19# tmp files: 20sysdcl="sysent.dcl.$$" 21syscompat="sysent.compat.$$" 22syscompatdcl="sysent.compatdcl.$$" 23sysent="sysent.switch.$$" 24sysinc="sysinc.switch.$$" 25sysarg="sysarg.switch.$$" 26sysun="sysunion.switch.$$" 27 28trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun" 0 29 30touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun 31 32case $# in 33 0) echo "Usage: $0 input-file <config-file>" 1>&2 34 exit 1 35 ;; 36esac 37 38if [ -n "$2" -a -f "$2" ]; then 39 . $2 40fi 41 42sed -e ' 43s/\$//g 44:join 45 /\\$/{a\ 46 47 N 48 s/\\\n// 49 b join 50 } 512,${ 52 /^#/!s/\([{}()*,]\)/ \1 /g 53} 54' < $1 | awk " 55 BEGIN { 56 sysdcl = \"$sysdcl\" 57 sysproto = \"$sysproto\" 58 sysproto_h = \"$sysproto_h\" 59 syscompat = \"$syscompat\" 60 syscompatdcl = \"$syscompatdcl\" 61 sysent = \"$sysent\" 62 syssw = \"$syssw\" 63 sysinc = \"$sysinc\" 64 sysarg = \"$sysarg\" 65 sysun = \"$sysun\" 66 sysnames = \"$sysnames\" 67 syshdr = \"$syshdr\" 68 sysmk = \"$sysmk\" 69 compat = \"$compat\" 70 syscallprefix = \"$syscallprefix\" 71 switchname = \"$switchname\" 72 namesname = \"$namesname\" 73 infile = \"$1\" 74 "' 75 76 printf "/*\n * System call switch table.\n *\n" > syssw 77 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syssw 78 printf " * by running make sysent in the same directory.\n" > syssw 79 printf " */\n\n" > syssw 80 81 printf "/*\n * System call prototypes.\n *\n" > sysarg 82 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysarg 83 printf " * by running make sysent in the same directory.\n" > sysarg 84 printf " */\n\n" > sysarg 85 printf "#ifndef _KERNEL\n" >sysarg 86 printf "#error \"This file should not be included by userland programs.\"\n" >sysarg 87 printf "#endif\n\n" >sysarg 88 printf "#ifndef %s\n", sysproto_h > sysarg 89 printf "#define\t%s\n\n", sysproto_h > sysarg 90 printf "#include <sys/select.h>\n" > sysarg 91 printf "#include <sys/signal.h>\n" > sysarg 92 printf "#include <sys/acl.h>\n" > sysarg 93 printf "#include <sys/cpumask.h>\n" > sysarg 94 printf "#include <sys/mqueue.h>\n" > sysarg 95 printf "#include <sys/msgport.h>\n" > sysarg 96 printf "#include <sys/procctl.h>\n\n" > sysarg 97 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg 98 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg 99 100 printf "/*\n * System call names.\n *\n" > sysnames 101 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames 102 printf " * by running make sysent in the same directory.\n" > sysnames 103 printf " */\n\n" > sysnames 104 printf "const char *%s[] = {\n", namesname > sysnames 105 106 printf "/*\n * System call numbers.\n *\n" > syshdr 107 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr 108 printf " * by running make sysent in the same directory.\n" > syshdr 109 printf " */\n\n" > syshdr 110 111 printf "# DragonFly system call names.\n" > sysmk 112 printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk 113 printf "# by running make sysent in the same directory.\n" > sysmk 114 printf "MIASM = " > sysmk 115 116 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun 117 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun 118 printf " * by running make sysent in the same directory.\n" > sysun 119 printf " */\n\n" > sysun 120 printf "#ifndef _KERNEL\n" >sysun 121 printf "#error \"This file should not be included by userland programs.\"\n" >sysun 122 printf "#endif\n\n" >sysun 123 printf "#include <sys/sysproto.h>\n\n" > sysun 124 printf "union sysunion {\n" > sysun 125 126 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 127 printf "struct sysent %s[] = {\n",switchname > sysent 128 129 printf "\n#ifdef _KERNEL\n\n" > sysdcl 130 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl 131 printf "struct sysmsg;\n\n" > sysdcl 132 printf "struct sysmsg;\n\n" > syscompatdcl 133 } 134 NF == 0 || $1 ~ /^;/ { 135 next 136 } 137 $1 ~ /^#[ ]*include/ { 138 print > sysinc 139 next 140 } 141 $1 ~ /^#[ ]*if/ { 142 print > sysent 143 print > sysdcl 144 print > sysarg 145 print > syscompat 146 print > sysnames 147 print > sysun 148 savesyscall = syscall 149 next 150 } 151 $1 ~ /^#[ ]*else/ { 152 print > sysent 153 print > sysdcl 154 print > sysarg 155 print > sysun 156 print > syscompat 157 print > sysnames 158 syscall = savesyscall 159 next 160 } 161 $1 ~ /^#/ { 162 print > sysent 163 print > sysdcl 164 print > sysarg 165 print > sysun 166 print > syscompat 167 print > sysnames 168 next 169 } 170 syscall != $1 { 171 printf "%s: line %d: syscall number out of sync at %d\n", 172 infile, NR, syscall 173 printf "line is:\n" 174 print 175 exit 1 176 } 177 function align_sysent_comment(column) { 178 printf("\t") > sysent 179 column = column + 8 - column % 8 180 while (column < 56) { 181 printf("\t") > sysent 182 column = column + 8 183 } 184 } 185 function parserr(was, wanted) { 186 printf "%s: line %d: unexpected %s (expected %s)\n", 187 infile, NR, was, wanted 188 exit 1 189 } 190 function parseline() { 191 f=3 # toss number and type 192 argc= 0; 193 argssize = "0" 194 rsize=4 195 if ($NF != "}") { 196 funcalias=$(NF-2) 197 argalias=$(NF-1) 198 rettype=$NF 199 end=NF-3 200 } else { 201 funcalias="" 202 argalias="" 203 rettype="int" 204 end=NF 205 } 206 if ($2 == "NODEF") { 207 funcname=$3 208 argssize = "AS(" $5 ")" 209 return 210 } 211 if ($f != "{") 212 parserr($f, "{") 213 f++ 214 if ($end != "}") 215 parserr($end, "}") 216 end-- 217 if ($end != ";") 218 parserr($end, ";") 219 end-- 220 if ($end != ")") 221 parserr($end, ")") 222 end-- 223 224 rtype=$f 225 f++ #function return type 226 227 funcname=$f 228 usefuncname=$f 229 if (funcalias == "") 230 funcalias = funcname 231 if (argalias == "") 232 argalias = funcname "_args" 233 f++ 234 235 if ($f != "(") 236 parserr($f, ")") 237 f++ 238 239 if (f == end) { 240 if ($f != "void") 241 parserr($f, "argument definition") 242 return 243 } 244 245 if (rtype == "caddr_t") 246 rsize = 8 247 if (rtype == "size_t") 248 rsize = 8 249 if (rtype == "ssize_t") 250 rsize = 8 251 if (rtype == "off_t") 252 rsize = 8 253 254 while (f <= end) { 255 argc++ 256 argtype[argc]="" 257 oldf="" 258 while (f < end && $(f+1) != ",") { 259 if (argtype[argc] != "" && oldf != "*") 260 argtype[argc] = argtype[argc]" "; 261 argtype[argc] = argtype[argc]$f; 262 oldf = $f; 263 f++ 264 } 265 if (argtype[argc] == "") 266 parserr($f, "argument definition") 267 argname[argc]=$f; 268 f += 2; # skip name, and any comma 269 } 270 if (argc != 0) 271 argssize = "AS(" argalias ")" 272 } 273 { comment = $3 274 if (NF < 6) 275 for (i = 4; i <= NF; i++) 276 comment = comment " " $i 277 } 278 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 279 || $2 == "NOIMPL" { 280 parseline() 281 if ((!nosys || funcname != "nosys") && \ 282 (funcname != "lkmnosys")) { 283 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 284 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 285 printf("struct\t%s {\n", argalias) > sysarg 286 for (i = 1; i <= argc; i++) 287 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 288 argtype[i], argname[i], 289 argname[i], argtype[i]) > sysarg 290 printf("};\n") > sysarg 291 } 292 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 293 $2 != "NODEF") { 294 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 295 printf("struct\t%s {\n", argalias) > sysarg 296 printf("\tregister_t dummy;\n") > sysarg 297 printf("};\n") > sysarg 298 } 299 } 300 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 301 (funcname != "nosys" || !nosys)) || \ 302 (funcname == "lkmnosys" && !lkmnosys) || \ 303 funcname == "lkmressys") { 304 printf("%s\tsys_%s (struct sysmsg *sysmsg, const struct %s *)", 305 rettype, funcname, argalias) > sysdcl 306 printf(";\n") > sysdcl 307 } 308 if (funcname == "nosys") 309 nosys = 1 310 if (funcname == "lkmnosys") 311 lkmnosys = 1 312 printf("\t{ %s, %s, (sy_call_t *)", argssize, rsize) > sysent 313 column = 8 + 2 + length(argssize) + 15 314 if ($2 != "NOIMPL") { 315 printf("sys_%s },", funcname) > sysent 316 column = column + length(funcname) + 7 317 } else { 318 printf("sys_%s },", "nosys") > sysent 319 column = column + length("nosys") + 7 320 } 321 align_sysent_comment(column) 322 printf("/* %d = %s */\n", syscall, funcalias) > sysent 323 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 324 funcalias, syscall, funcalias) > sysnames 325 if ($2 != "NODEF") { 326 printf("#define\t%s%s\t%d\n", syscallprefix, 327 funcalias, syscall) > syshdr 328 printf(" \\\n\t%s.o", funcalias) > sysmk 329 } 330 syscall++ 331 next 332 } 333 $2 == "OBSOL" { 334 printf("\t{ 0, 4, (sy_call_t *)sys_nosys },") > sysent 335 align_sysent_comment(37) 336 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 337 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 338 $3, syscall, comment) > sysnames 339 printf("\t\t\t\t/* %d is obsolete %s */\n", 340 syscall, comment) > syshdr 341 syscall++ 342 next 343 } 344 $2 == "UNIMPL" { 345 printf("\t{ 0, 4, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", 346 syscall, comment) > sysent 347 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 348 syscall, syscall, comment) > sysnames 349 syscall++ 350 next 351 } 352 { 353 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 354 exit 1 355 } 356 END { 357 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc 358 if (ncompat != 0) 359 printf "#define compat(n, name) 0, 4, (sy_call_t *)sys_nosys\n" > sysinc 360 361 printf("\n#undef PAD_\n") > sysarg 362 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 363 printf("\n#endif /* _KERNEL */\n") > sysdcl 364 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl 365 366 printf("\n") > sysmk 367 printf("};\n") > sysent 368 printf("};\n") > sysnames 369 printf("};\n") > sysun 370 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 371 > syshdr 372 } ' 373 374cat $sysinc $sysent >> $syssw 375cat $sysarg $syscompat $syscompatdcl $sysdcl > $sysproto 376cat $sysun > $sysunion 377