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 1.16 2006/08/06 18:56:44 dillon Exp $ 5 6set -e 7 8# name of compat option: 9compat=COMPAT_43 10# name of DragonFly 1.2 compat option 11compatdf12=COMPAT_DF12 12 13# output files: 14sysnames="syscalls.c" 15sysproto="../sys/sysproto.h" 16sysunion="../sys/sysunion.h" 17sysproto_h=_SYS_SYSPROTO_H_ 18syshdr="../sys/syscall.h" 19sysmk="../sys/syscall.mk" 20syssw="init_sysent.c" 21syshide="../sys/syscall-hide.h" 22syscallprefix="SYS_" 23switchname="sysent" 24namesname="syscallnames" 25 26# tmp files: 27sysdcl="sysent.dcl.$$" 28syscompat="sysent.compat.$$" 29syscompatdf12="sysent.compatdf12.$$" 30syscompatdcl="sysent.compatdcl.$$" 31syscompatdcldf12="sysent.compatdcldf12.$$" 32sysent="sysent.switch.$$" 33sysinc="sysinc.switch.$$" 34sysarg="sysarg.switch.$$" 35sysun="sysunion.switch.$$" 36 37trap "rm $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdcldf12 $sysent $sysinc $sysarg $sysun" 0 38 39touch $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdf12 $sysent $sysinc $sysarg $sysun 40 41case $# in 42 0) echo "Usage: $0 input-file <config-file>" 1>&2 43 exit 1 44 ;; 45esac 46 47if [ -n "$2" -a -f "$2" ]; then 48 . $2 49fi 50 51sed -e ' 52s/\$//g 53:join 54 /\\$/{a\ 55 56 N 57 s/\\\n// 58 b join 59 } 602,${ 61 /^#/!s/\([{}()*,]\)/ \1 /g 62} 63' < $1 | awk " 64 BEGIN { 65 sysdcl = \"$sysdcl\" 66 sysproto = \"$sysproto\" 67 sysproto_h = \"$sysproto_h\" 68 syscompat = \"$syscompat\" 69 syscompatdf12 = \"$syscompatdf12\" 70 syscompatdcl = \"$syscompatdcl\" 71 syscompatdcldf12 = \"$syscompatdcldf12\" 72 sysent = \"$sysent\" 73 syssw = \"$syssw\" 74 sysinc = \"$sysinc\" 75 sysarg = \"$sysarg\" 76 sysun = \"$sysun\" 77 sysnames = \"$sysnames\" 78 syshdr = \"$syshdr\" 79 sysmk = \"$sysmk\" 80 compat = \"$compat\" 81 compatdf12 = \"$compatdf12\" 82 syshide = \"$syshide\" 83 syscallprefix = \"$syscallprefix\" 84 switchname = \"$switchname\" 85 namesname = \"$namesname\" 86 infile = \"$1\" 87 "' 88 89 printf "/*\n * System call switch table.\n *\n" > syssw 90 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw 91 printf " * \$\DragonFly\$\n" > syssw 92 93 printf "/*\n * System call prototypes.\n *\n" > sysarg 94 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg 95 printf " * \$\DragonFly\$\n" > sysarg 96 97 printf "\n#ifdef %s\n\n", compat > syscompat 98 printf "\n#ifdef %s\n\n", compatdf12 > syscompatdf12 99 100 printf "/*\n * System call names.\n *\n" > sysnames 101 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames 102 printf " * \$\DragonFly\$\n" > sysnames 103 104 printf "/*\n * System call numbers.\n *\n" > syshdr 105 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr 106 printf " * \$\DragonFly\$\n" > syshdr 107 printf "# DragonFly system call names.\n" > sysmk 108 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk 109 printf "# \$\DragonFly\$\n" > sysmk 110 printf "/*\n * System call hiders.\n *\n" > syshide 111 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide 112 printf " * \$\DragonFly\$\n" > syshide 113 114 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun 115 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysun 116 printf " * \$\DragonFly\$\n" > sysun 117 printf "\n#ifdef _KERNEL\n\n" > sysdcl 118 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl 119 printf "\n#ifdef _KERNEL\n\n" > syscompatdcldf12 120 } 121 NR == 1 { 122 gsub("[$]DragonFly: ", "", $0) 123 gsub(" [$]", "", $0) 124 125 printf " * created from%s\n */\n\n", $0 > syssw 126 127 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 128 printf "struct sysent %s[] = {\n",switchname > sysent 129 130 printf " * created from%s\n */\n\n", $0 > sysarg 131 printf "#ifndef %s\n", sysproto_h > sysarg 132 printf "#define\t%s\n\n", sysproto_h > sysarg 133 printf "#include <sys/signal.h>\n\n" > sysarg 134 printf "#include <sys/acl.h>\n\n" > sysarg 135 printf "#include <sys/msgport.h>\n\n" > sysarg 136 printf "#include <sys/sysmsg.h>\n\n" > sysarg 137 printf "#include <sys/syslink.h>\n\n" > sysarg 138 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg 139 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg 140 141 printf " * created from%s\n */\n\n", $0 > sysnames 142 printf "char *%s[] = {\n", namesname > sysnames 143 144 printf " * created from%s\n */\n\n", $0 > syshdr 145 146 printf "# created from%s\nMIASM = ", $0 > sysmk 147 148 printf " * created from%s\n */\n\n", $0 > syshide 149 printf " * created from%s\n */\n\n", $0 > sysun 150 printf "union sysunion {\n" > sysun 151 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun 152 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun 153 printf "\tstruct\tsysmsg sysmsg;\n" > sysun 154 printf "#endif\n" > sysun 155 156 next 157 } 158 NF == 0 || $1 ~ /^;/ { 159 next 160 } 161 $1 ~ /^#[ ]*include/ { 162 print > sysinc 163 next 164 } 165 $1 ~ /^#[ ]*if/ { 166 print > sysent 167 print > sysdcl 168 print > sysarg 169 print > syscompat 170 print > syscompatdf12 171 print > sysnames 172 print > syshide 173 print > sysun 174 savesyscall = syscall 175 next 176 } 177 $1 ~ /^#[ ]*else/ { 178 print > sysent 179 print > sysdcl 180 print > sysarg 181 print > sysun 182 print > syscompat 183 print > syscompatdf12 184 print > sysnames 185 print > syshide 186 syscall = savesyscall 187 next 188 } 189 $1 ~ /^#/ { 190 print > sysent 191 print > sysdcl 192 print > sysarg 193 print > sysun 194 print > syscompat 195 print > syscompatdf12 196 print > sysnames 197 print > syshide 198 next 199 } 200 syscall != $1 { 201 printf "%s: line %d: syscall number out of sync at %d\n", 202 infile, NR, syscall 203 printf "line is:\n" 204 print 205 exit 1 206 } 207 function align_sysent_comment(column) { 208 printf("\t") > sysent 209 column = column + 8 - column % 8 210 while (column < 56) { 211 printf("\t") > sysent 212 column = column + 8 213 } 214 } 215 function parserr(was, wanted) { 216 printf "%s: line %d: unexpected %s (expected %s)\n", 217 infile, NR, was, wanted 218 exit 1 219 } 220 function parseline() { 221 f=4 # toss number and type 222 argc= 0; 223 argssize = "0" 224 if ($NF != "}") { 225 funcalias=$(NF-2) 226 argalias=$(NF-1) 227 rettype=$NF 228 end=NF-3 229 } else { 230 funcalias="" 231 argalias="" 232 rettype="int" 233 end=NF 234 } 235 if ($2 == "NODEF") { 236 funcname=$4 237 argssize = "AS(" $6 ")" 238 return 239 } 240 if ($f != "{") 241 parserr($f, "{") 242 f++ 243 if ($end != "}") 244 parserr($end, "}") 245 end-- 246 if ($end != ";") 247 parserr($end, ";") 248 end-- 249 if ($end != ")") 250 parserr($end, ")") 251 end-- 252 253 f++ #function return type 254 255 funcname=$f 256 usefuncname=$f 257 if (funcalias == "") 258 funcalias = funcname 259 if (argalias == "") { 260 argalias = funcname "_args" 261 if ($2 == "COMPAT") { 262 argalias = "o" argalias 263 usefuncname = "sys_o" funcname 264 } 265 if ($2 == "COMPAT_DF12") { 266 argalias = "dfbsd12_" argalias 267 usefuncname = "sys_dfbsd12_" funcname 268 } 269 } 270 f++ 271 272 if ($f != "(") 273 parserr($f, ")") 274 f++ 275 276 if (f == end) { 277 if ($f != "void") 278 parserr($f, "argument definition") 279 return 280 } 281 282 while (f <= end) { 283 argc++ 284 argtype[argc]="" 285 oldf="" 286 while (f < end && $(f+1) != ",") { 287 if (argtype[argc] != "" && oldf != "*") 288 argtype[argc] = argtype[argc]" "; 289 argtype[argc] = argtype[argc]$f; 290 oldf = $f; 291 f++ 292 } 293 if (argtype[argc] == "") 294 parserr($f, "argument definition") 295 argname[argc]=$f; 296 f += 2; # skip name, and any comma 297 } 298 if (argc != 0) 299 argssize = "AS(" argalias ")" 300 } 301 { comment = $4 302 if (NF < 7) 303 for (i = 5; i <= NF; i++) 304 comment = comment " " $i 305 } 306 # if the "MPSAFE" keyword is found, note it and shift the line 307 mpsafe = "" 308 $2 == "MPSAFE" { 309 for (i = 2; i <= NF; i++) 310 $i = $(i + 1); 311 NF -= 1; 312 mpsafe = "SYF_MPSAFE | " 313 } 314 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 315 || $2 == "NOIMPL" { 316 parseline() 317 if ((!nosys || funcname != "nosys") && \ 318 (funcname != "lkmnosys")) { 319 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 320 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 321 printf("struct\t%s {\n", argalias) > sysarg 322 printf("#ifdef _KERNEL\n") > sysarg 323 printf("\tstruct sysmsg sysmsg;\n") > sysarg 324 printf("#endif\n") > sysarg 325 for (i = 1; i <= argc; i++) 326 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 327 argtype[i], argname[i], 328 argname[i], argtype[i]) > sysarg 329 printf("};\n") > sysarg 330 } 331 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 332 $2 != "NODEF") { 333 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 334 printf("struct\t%s {\n", argalias) > sysarg 335 printf("#ifdef _KERNEL\n") > sysarg 336 printf("\tstruct sysmsg sysmsg;\n") > sysarg 337 printf("#endif\n") > sysarg 338 printf("\tregister_t dummy;\n") > sysarg 339 printf("};\n") > sysarg 340 } 341 } 342 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 343 (funcname != "nosys" || !nosys)) || \ 344 (funcname == "lkmnosys" && !lkmnosys) || \ 345 funcname == "lkmressys") { 346 printf("%s\tsys_%s (struct %s *)", 347 rettype, funcname, argalias) > sysdcl 348 printf(";\n") > sysdcl 349 } 350 if (funcname == "nosys") 351 nosys = 1 352 if (funcname == "lkmnosys") 353 lkmnosys = 1 354 printf("\t{ %s%s, (sy_call_t *)", mpsafe, argssize) > sysent 355 column = 8 + 2 + length(mpsafe) + length(argssize) + 15 356 if ($2 != "NOIMPL") { 357 printf("sys_%s },", funcname) > sysent 358 column = column + length(funcname) + 7 359 } else { 360 printf("sys_%s },", "nosys") > sysent 361 column = column + length("nosys") + 7 362 } 363 align_sysent_comment(column) 364 printf("/* %d = %s */\n", syscall, funcalias) > sysent 365 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 366 funcalias, syscall, funcalias) > sysnames 367 if ($2 != "NODEF") { 368 printf("#define\t%s%s\t%d\n", syscallprefix, 369 funcalias, syscall) > syshdr 370 printf(" \\\n\t%s.o", funcalias) > sysmk 371 } 372 if ($3 != "NOHIDE") 373 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 374 syscall++ 375 next 376 } 377 $2 == "COMPAT" || $2 == "CPT_NOA" { 378 ncompat++ 379 parseline() 380 if (argc != 0 && $2 != "CPT_NOA") { 381 printf("#ifdef %s\n", compat) > sysun 382 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 383 printf("#endif\n") > sysun 384 printf("struct\t%s {\n", argalias) > syscompat 385 printf("#ifdef _KERNEL\n") > syscompat 386 printf("\tstruct sysmsg sysmsg;\n") > syscompat 387 printf("#endif\n") > syscompat 388 for (i = 1; i <= argc; i++) 389 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 390 argtype[i], argname[i], 391 argname[i], argtype[i]) > syscompat 392 printf("};\n") > syscompat 393 } 394 else if($2 != "CPT_NOA") { 395 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 396 printf("struct\t%s {\n", argalias) > sysarg 397 printf("#ifdef _KERNEL\n") > sysarg 398 printf("\tstruct sysmsg sysmsg;\n") > sysarg 399 printf("#endif\n") > sysarg 400 printf("\tregister_t dummy;\n") > sysarg 401 printf("};\n") > sysarg 402 } 403 printf("%s\tsys_o%s (struct %s *);\n", 404 rettype, funcname, argalias) > syscompatdcl 405 printf("\t{ compat(%s%s,%s) },", 406 mpsafe, argssize, funcname) > sysent 407 align_sysent_comment(8 + 9 + length(mpsafe) + \ 408 length(argssize) + 1 + length(funcname) + 4) 409 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 410 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 411 funcalias, syscall, funcalias) > sysnames 412 printf("\t\t\t\t/* %d is old %s */\n", 413 syscall, funcalias) > syshdr 414 if ($3 != "NOHIDE") 415 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 416 syscall++ 417 next 418 } 419 $2 == "COMPAT_DF12" { 420 ncompatdf12++ 421 parseline() 422 if (argc != 0) { 423 printf("#ifdef %s\n", compatdf12) > sysun 424 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 425 printf("#endif\n") > sysun 426 printf("struct\t%s {\n", argalias) > syscompatdf12 427 printf("#ifdef _KERNEL\n") > syscompatdf12 428 printf("\tstruct sysmsg sysmsg;\n") > syscompatdf12 429 printf("#endif\n") > syscompatdf12 430 for (i = 1; i <= argc; i++) 431 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 432 argtype[i], argname[i], 433 argname[i], argtype[i]) > syscompatdf12 434 printf("};\n") > syscompatdf12 435 } 436 else { 437 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 438 printf("struct\t%s {\n", argalias) > sysarg 439 printf("#ifdef _KERNEL\n") > sysarg 440 printf("\tstruct sysmsg sysmsg;\n") > sysarg 441 printf("#endif\n") > sysarg 442 printf("\tregister_t dummy;\n") > sysarg 443 printf("};\n") > sysarg 444 } 445 printf("%s\tsys_dfbsd12_%s (struct %s *);\n", 446 rettype, funcname, argalias) > syscompatdcldf12 447 printf("\t{ compatdf12(%s%s,%s) },", 448 mpsafe, argssize, funcname) > sysent 449 align_sysent_comment(8 + 9 + length(mpsafe) + \ 450 length(argssize) + 1 + length(funcname) + 4) 451 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 452 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 453 funcalias, syscall, funcalias) > sysnames 454 printf("\t\t\t\t/* %d is old %s */\n", 455 syscall, funcalias) > syshdr 456 if ($3 != "NOHIDE") 457 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 458 syscall++ 459 next 460 } 461 $2 == "LIBCOMPAT" { 462 ncompat++ 463 parseline() 464 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl 465 printf("\t{ compat(%s%s,%s) },", 466 mpsafe, argssize, funcname) > sysent 467 align_sysent_comment(8 + 9 + length(mpsafe) + \ 468 length(argssize) + 1 + length(funcname) + 4) 469 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 470 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 471 funcalias, syscall, funcalias) > sysnames 472 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", 473 syscallprefix, funcalias, syscall) > syshdr 474 printf(" \\\n\t%s.o", funcalias) > sysmk 475 if ($3 != "NOHIDE") 476 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 477 syscall++ 478 next 479 } 480 $2 == "OBSOL" { 481 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent 482 align_sysent_comment(37) 483 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 484 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 485 $4, syscall, comment) > sysnames 486 printf("\t\t\t\t/* %d is obsolete %s */\n", 487 syscall, comment) > syshdr 488 if ($3 != "NOHIDE") 489 printf("HIDE_%s(%s)\n", $3, $4) > syshide 490 syscall++ 491 next 492 } 493 $2 == "UNIMPL" { 494 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", 495 syscall, comment) > sysent 496 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 497 syscall, syscall, comment) > sysnames 498 if ($3 != "NOHIDE") 499 printf("HIDE_%s(%s)\n", $3, $4) > syshide 500 syscall++ 501 next 502 } 503 { 504 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 505 exit 1 506 } 507 END { 508 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc 509 if (ncompat != 0) { 510 printf "#include \"opt_compat.h\"\n\n" > syssw 511 printf "\n#ifdef %s\n", compat > sysinc 512 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(o,name))\n" > sysinc 513 printf "#else\n" > sysinc 514 printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc 515 printf "#endif\n" > sysinc 516 } 517 518 if (ncompatdf12 != 0) { 519 printf "#include \"opt_compatdf12.h\"\n\n" > syssw 520 printf "\n#ifdef %s\n", compatdf12 > sysinc 521 printf "#define compatdf12(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(dfbsd12_,name))\n" > sysinc 522 printf "#else\n" > sysinc 523 printf "#define compatdf12(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc 524 printf "#endif\n" > sysinc 525 } 526 527 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 528 printf("\n#endif /* _KERNEL */\n") > syscompatdcldf12 529 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl 530 printf("\n#endif /* %s */\n\n", compatdf12) > syscompatdcldf12 531 532 printf("\n") > sysmk 533 printf("};\n") > sysent 534 printf("};\n") > sysnames 535 printf("};\n") > sysun 536 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl 537 printf("#undef PAD_\n") > sysdcl 538 printf("\n#endif /* _KERNEL */\n") > sysdcl 539 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 540 > syshdr 541 } ' 542 543cat $sysinc $sysent >> $syssw 544cat $sysarg $syscompat $syscompatdcl $syscompatdf12 $syscompatdcldf12 $sysdcl > $sysproto 545cat $sysun > $sysunion 546