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# $DragonFly: src/sys/kern/makesyscalls.sh,v 1.9 2003/08/20 07:37:54 rob Exp $ 5 6set -e 7 8# name of compat option: 9compat=COMPAT_43 10 11# output files: 12sysnames="syscalls.c" 13sysproto="../sys/sysproto.h" 14sysunion="../sys/sysunion.h" 15sysproto_h=_SYS_SYSPROTO_H_ 16syshdr="../sys/syscall.h" 17sysmk="../sys/syscall.mk" 18syssw="init_sysent.c" 19syshide="../sys/syscall-hide.h" 20syscallprefix="SYS_" 21switchname="sysent" 22namesname="syscallnames" 23 24# tmp files: 25sysdcl="sysent.dcl.$$" 26syscompat="sysent.compat.$$" 27syscompatdcl="sysent.compatdcl.$$" 28sysent="sysent.switch.$$" 29sysinc="sysinc.switch.$$" 30sysarg="sysarg.switch.$$" 31sysun="sysunion.switch.$$" 32 33trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun" 0 34 35touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun 36 37case $# in 38 0) echo "Usage: $0 input-file <config-file>" 1>&2 39 exit 1 40 ;; 41esac 42 43if [ -n "$2" -a -f "$2" ]; then 44 . $2 45fi 46 47sed -e ' 48s/\$//g 49:join 50 /\\$/{a\ 51 52 N 53 s/\\\n// 54 b join 55 } 562,${ 57 /^#/!s/\([{}()*,]\)/ \1 /g 58} 59' < $1 | awk " 60 BEGIN { 61 sysdcl = \"$sysdcl\" 62 sysproto = \"$sysproto\" 63 sysproto_h = \"$sysproto_h\" 64 syscompat = \"$syscompat\" 65 syscompatdcl = \"$syscompatdcl\" 66 sysent = \"$sysent\" 67 syssw = \"$syssw\" 68 sysinc = \"$sysinc\" 69 sysarg = \"$sysarg\" 70 sysun = \"$sysun\" 71 sysnames = \"$sysnames\" 72 syshdr = \"$syshdr\" 73 sysmk = \"$sysmk\" 74 compat = \"$compat\" 75 syshide = \"$syshide\" 76 syscallprefix = \"$syscallprefix\" 77 switchname = \"$switchname\" 78 namesname = \"$namesname\" 79 infile = \"$1\" 80 "' 81 82 printf "/*\n * System call switch table.\n *\n" > syssw 83 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw 84 printf " * \$\DragonFly\$\n" > syssw 85 86 printf "/*\n * System call prototypes.\n *\n" > sysarg 87 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg 88 printf " * \$\DragonFly\$\n" > sysarg 89 90 printf "\n#ifdef %s\n\n", compat > syscompat 91 92 printf "/*\n * System call names.\n *\n" > sysnames 93 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames 94 printf " * \$\DragonFly\$\n" > sysnames 95 96 printf "/*\n * System call numbers.\n *\n" > syshdr 97 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr 98 printf " * \$\DragonFly\$\n" > syshdr 99 printf "# DragonFly system call names.\n" > sysmk 100 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk 101 printf "# \$\DragonFly\$\n" > sysmk 102 printf "/*\n * System call hiders.\n *\n" > syshide 103 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide 104 printf " * \$\DragonFly\$\n" > syshide 105 106 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun 107 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysun 108 printf " * \$\DragonFly\$\n" > sysun 109 printf "\n#ifdef _KERNEL\n\n" > sysdcl 110 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl 111 } 112 NR == 1 { 113 gsub("[$]DragonFly: ", "", $0) 114 gsub(" [$]", "", $0) 115 116 printf " * created from%s\n */\n\n", $0 > syssw 117 118 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 119 printf "struct sysent %s[] = {\n",switchname > sysent 120 121 printf " * created from%s\n */\n\n", $0 > sysarg 122 printf "#ifndef %s\n", sysproto_h > sysarg 123 printf "#define\t%s\n\n", sysproto_h > sysarg 124 printf "#include <sys/signal.h>\n\n" > sysarg 125 printf "#include <sys/acl.h>\n\n" > sysarg 126 printf "#include <sys/msgport.h>\n\n" > sysarg 127 printf "#include <sys/sysmsg.h>\n\n" > sysarg 128 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg 129 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg 130 131 printf " * created from%s\n */\n\n", $0 > sysnames 132 printf "char *%s[] = {\n", namesname > sysnames 133 134 printf " * created from%s\n */\n\n", $0 > syshdr 135 136 printf "# created from%s\nMIASM = ", $0 > sysmk 137 138 printf " * created from%s\n */\n\n", $0 > syshide 139 printf " * created from%s\n */\n\n", $0 > sysun 140 printf "union sysunion {\n" > sysun 141 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun 142 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun 143 printf "\tunion\tsysmsg sysmsg;\n" > sysun 144 printf "#endif\n" > sysun 145 next 146 } 147 NF == 0 || $1 ~ /^;/ { 148 next 149 } 150 $1 ~ /^#[ ]*include/ { 151 print > sysinc 152 next 153 } 154 $1 ~ /^#[ ]*if/ { 155 print > sysent 156 print > sysdcl 157 print > sysarg 158 print > syscompat 159 print > sysnames 160 print > syshide 161 print > sysun 162 savesyscall = syscall 163 next 164 } 165 $1 ~ /^#[ ]*else/ { 166 print > sysent 167 print > sysdcl 168 print > sysarg 169 print > sysun 170 print > syscompat 171 print > sysnames 172 print > syshide 173 syscall = savesyscall 174 next 175 } 176 $1 ~ /^#/ { 177 print > sysent 178 print > sysdcl 179 print > sysarg 180 print > sysun 181 print > syscompat 182 print > sysnames 183 print > syshide 184 next 185 } 186 syscall != $1 { 187 printf "%s: line %d: syscall number out of sync at %d\n", 188 infile, NR, syscall 189 printf "line is:\n" 190 print 191 exit 1 192 } 193 function align_sysent_comment(column) { 194 printf("\t") > sysent 195 column = column + 8 - column % 8 196 while (column < 56) { 197 printf("\t") > sysent 198 column = column + 8 199 } 200 } 201 function parserr(was, wanted) { 202 printf "%s: line %d: unexpected %s (expected %s)\n", 203 infile, NR, was, wanted 204 exit 1 205 } 206 function parseline() { 207 f=4 # toss number and type 208 argc= 0; 209 argssize = "0" 210 if ($NF != "}") { 211 funcalias=$(NF-2) 212 argalias=$(NF-1) 213 rettype=$NF 214 end=NF-3 215 } else { 216 funcalias="" 217 argalias="" 218 rettype="int" 219 end=NF 220 } 221 if ($2 == "NODEF") { 222 funcname=$4 223 argssize = "AS(" $6 ")" 224 return 225 } 226 if ($f != "{") 227 parserr($f, "{") 228 f++ 229 if ($end != "}") 230 parserr($end, "}") 231 end-- 232 if ($end != ";") 233 parserr($end, ";") 234 end-- 235 if ($end != ")") 236 parserr($end, ")") 237 end-- 238 239 f++ #function return type 240 241 funcname=$f 242 usefuncname=$f 243 if (funcalias == "") 244 funcalias = funcname 245 if (argalias == "") { 246 argalias = funcname "_args" 247 if ($2 == "COMPAT") { 248 argalias = "o" argalias 249 usefuncname = "o" funcname 250 } 251 } 252 f++ 253 254 if ($f != "(") 255 parserr($f, ")") 256 f++ 257 258 if (f == end) { 259 if ($f != "void") 260 parserr($f, "argument definition") 261 return 262 } 263 264 while (f <= end) { 265 argc++ 266 argtype[argc]="" 267 oldf="" 268 while (f < end && $(f+1) != ",") { 269 if (argtype[argc] != "" && oldf != "*") 270 argtype[argc] = argtype[argc]" "; 271 argtype[argc] = argtype[argc]$f; 272 oldf = $f; 273 f++ 274 } 275 if (argtype[argc] == "") 276 parserr($f, "argument definition") 277 argname[argc]=$f; 278 f += 2; # skip name, and any comma 279 } 280 if (argc != 0) 281 argssize = "AS(" argalias ")" 282 } 283 { comment = $4 284 if (NF < 7) 285 for (i = 5; i <= NF; i++) 286 comment = comment " " $i 287 } 288 # if the "MPSAFE" keyword is found, note it and shift the line 289 mpsafe = "" 290 $2 == "MPSAFE" { 291 for (i = 2; i <= NF; i++) 292 $i = $(i + 1); 293 NF -= 1; 294 mpsafe = "SYF_MPSAFE | " 295 } 296 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 297 || $2 == "NOIMPL" { 298 parseline() 299 if ((!nosys || funcname != "nosys") && \ 300 (funcname != "lkmnosys")) { 301 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 302 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 303 printf("struct\t%s {\n", argalias) > sysarg 304 printf("#ifdef _KERNEL\n") > sysarg 305 printf("\tunion sysmsg sysmsg;\n") > sysarg 306 printf("#endif\n") > sysarg 307 printf("\tunion usrmsg usrmsg;\n") > sysarg 308 for (i = 1; i <= argc; i++) 309 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 310 argtype[i], argname[i], 311 argname[i], argtype[i]) > sysarg 312 printf("};\n") > sysarg 313 } 314 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 315 $2 != "NODEF") { 316 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 317 printf("struct\t%s {\n", argalias) > sysarg 318 printf("#ifdef _KERNEL\n") > sysarg 319 printf("\tunion sysmsg sysmsg;\n") > sysarg 320 printf("#endif\n") > sysarg 321 printf("\tunion usrmsg usrmsg;\n") > sysarg 322 printf("\tregister_t dummy;\n") > sysarg 323 printf("};\n") > sysarg 324 } 325 } 326 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 327 (funcname != "nosys" || !nosys)) || \ 328 (funcname == "lkmnosys" && !lkmnosys) || \ 329 funcname == "lkmressys") { 330 printf("%s\t%s (struct %s *)", 331 rettype, funcname, argalias) > sysdcl 332 printf(";\n") > sysdcl 333 } 334 if (funcname == "nosys") 335 nosys = 1 336 if (funcname == "lkmnosys") 337 lkmnosys = 1 338 printf("\t{ %s%s, (sy_call_t *)", mpsafe, argssize) > sysent 339 column = 8 + 2 + length(mpsafe) + length(argssize) + 15 340 if ($2 != "NOIMPL") { 341 printf("%s },", funcname) > sysent 342 column = column + length(funcname) + 3 343 } else { 344 printf("%s },", "nosys") > sysent 345 column = column + length("nosys") + 3 346 } 347 align_sysent_comment(column) 348 printf("/* %d = %s */\n", syscall, funcalias) > sysent 349 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 350 funcalias, syscall, funcalias) > sysnames 351 if ($2 != "NODEF") { 352 printf("#define\t%s%s\t%d\n", syscallprefix, 353 funcalias, syscall) > syshdr 354 printf(" \\\n\t%s.o", funcalias) > sysmk 355 } 356 if ($3 != "NOHIDE") 357 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 358 syscall++ 359 next 360 } 361 $2 == "COMPAT" || $2 == "CPT_NOA" { 362 ncompat++ 363 parseline() 364 if (argc != 0 && $2 != "CPT_NOA") { 365 printf("#ifdef %s\n", compat) > sysun 366 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 367 printf("#endif\n") > sysun 368 printf("struct\t%s {\n", argalias) > syscompat 369 printf("#ifdef _KERNEL\n") > syscompat 370 printf("\tunion sysmsg sysmsg;\n") > syscompat 371 printf("#endif\n") > syscompat 372 printf("\tunion usrmsg usrmsg;\n") > syscompat 373 for (i = 1; i <= argc; i++) 374 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 375 argtype[i], argname[i], 376 argname[i], argtype[i]) > syscompat 377 printf("};\n") > syscompat 378 } 379 else if($2 != "CPT_NOA") { 380 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 381 printf("struct\t%s {\n", argalias) > sysarg 382 printf("#ifdef _KERNEL\n") > sysarg 383 printf("\tunion sysmsg sysmsg;\n") > sysarg 384 printf("#endif\n") > sysarg 385 printf("\tunion usrmsg usrmsg;\n") > sysarg 386 printf("\tregister_t dummy;\n") > sysarg 387 printf("};\n") > sysarg 388 } 389 printf("%s\to%s (struct %s *);\n", 390 rettype, funcname, argalias) > syscompatdcl 391 printf("\t{ compat(%s%s,%s) },", 392 mpsafe, argssize, funcname) > sysent 393 align_sysent_comment(8 + 9 + length(mpsafe) + \ 394 length(argssize) + 1 + length(funcname) + 4) 395 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 396 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 397 funcalias, syscall, funcalias) > sysnames 398 printf("\t\t\t\t/* %d is old %s */\n", 399 syscall, funcalias) > syshdr 400 if ($3 != "NOHIDE") 401 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 402 syscall++ 403 next 404 } 405 $2 == "LIBCOMPAT" { 406 ncompat++ 407 parseline() 408 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl 409 printf("\t{ compat(%s%s,%s) },", 410 mpsafe, argssize, funcname) > sysent 411 align_sysent_comment(8 + 9 + length(mpsafe) + \ 412 length(argssize) + 1 + length(funcname) + 4) 413 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 414 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 415 funcalias, syscall, funcalias) > sysnames 416 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", 417 syscallprefix, funcalias, syscall) > syshdr 418 printf(" \\\n\t%s.o", funcalias) > sysmk 419 if ($3 != "NOHIDE") 420 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 421 syscall++ 422 next 423 } 424 $2 == "OBSOL" { 425 printf("\t{ 0, (sy_call_t *)nosys },") > sysent 426 align_sysent_comment(34) 427 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 428 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 429 $4, syscall, comment) > sysnames 430 printf("\t\t\t\t/* %d is obsolete %s */\n", 431 syscall, comment) > syshdr 432 if ($3 != "NOHIDE") 433 printf("HIDE_%s(%s)\n", $3, $4) > syshide 434 syscall++ 435 next 436 } 437 $2 == "UNIMPL" { 438 printf("\t{ 0, (sy_call_t *)nosys },\t\t\t/* %d = %s */\n", 439 syscall, comment) > sysent 440 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 441 syscall, syscall, comment) > sysnames 442 if ($3 != "NOHIDE") 443 printf("HIDE_%s(%s)\n", $3, $4) > syshide 444 syscall++ 445 next 446 } 447 { 448 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 449 exit 1 450 } 451 END { 452 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(union sysmsg) - sizeof(union usrmsg)) / sizeof(register_t))\n" > sysinc 453 if (ncompat != 0) { 454 printf "#include \"opt_compat.h\"\n\n" > syssw 455 printf "\n#ifdef %s\n", compat > sysinc 456 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc 457 printf "#else\n" > sysinc 458 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc 459 printf "#endif\n" > sysinc 460 } 461 462 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 463 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl 464 printf("#undef PAD_\n") > syscompatdcl 465 printf("\n#endif /* !%s */\n", sysproto_h) > syscompatdcl 466 467 printf("\n") > sysmk 468 printf("};\n") > sysent 469 printf("};\n") > sysnames 470 printf("};\n") > sysun 471 printf("\n#endif /* _KERNEL */\n") > sysdcl 472 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 473 > syshdr 474 } ' 475 476cat $sysinc $sysent >> $syssw 477cat $sysarg $sysdcl $syscompat $syscompatdcl > $sysproto 478cat $sysun > $sysunion 479