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# name of compat option: 8compat=COMPAT_43 9 10# output files: 11sysnames="syscalls.c" 12sysproto="../sys/sysproto.h" 13sysunion="../sys/sysunion.h" 14sysproto_h=_SYS_SYSPROTO_H_ 15syshdr="../sys/syscall.h" 16sysmk="../sys/syscall.mk" 17syssw="init_sysent.c" 18syscallprefix="SYS_" 19switchname="sysent" 20namesname="syscallnames" 21 22# tmp files: 23sysdcl="sysent.dcl.$$" 24syscompat="sysent.compat.$$" 25syscompatdcl="sysent.compatdcl.$$" 26sysent="sysent.switch.$$" 27sysinc="sysinc.switch.$$" 28sysarg="sysarg.switch.$$" 29sysun="sysunion.switch.$$" 30 31trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun" 0 32 33touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg $sysun 34 35case $# in 36 0) echo "Usage: $0 input-file <config-file>" 1>&2 37 exit 1 38 ;; 39esac 40 41if [ -n "$2" -a -f "$2" ]; then 42 . $2 43fi 44 45sed -e ' 46s/\$//g 47:join 48 /\\$/{a\ 49 50 N 51 s/\\\n// 52 b join 53 } 542,${ 55 /^#/!s/\([{}()*,]\)/ \1 /g 56} 57' < $1 | awk " 58 BEGIN { 59 sysdcl = \"$sysdcl\" 60 sysproto = \"$sysproto\" 61 sysproto_h = \"$sysproto_h\" 62 syscompat = \"$syscompat\" 63 syscompatdcl = \"$syscompatdcl\" 64 sysent = \"$sysent\" 65 syssw = \"$syssw\" 66 sysinc = \"$sysinc\" 67 sysarg = \"$sysarg\" 68 sysun = \"$sysun\" 69 sysnames = \"$sysnames\" 70 syshdr = \"$syshdr\" 71 sysmk = \"$sysmk\" 72 compat = \"$compat\" 73 syscallprefix = \"$syscallprefix\" 74 switchname = \"$switchname\" 75 namesname = \"$namesname\" 76 infile = \"$1\" 77 "' 78 79 printf "/*\n * System call switch table.\n *\n" > syssw 80 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syssw 81 printf " * by running make sysent in the same directory.\n" > syssw 82 printf " */\n\n" > syssw 83 84 printf "/*\n * System call prototypes.\n *\n" > sysarg 85 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysarg 86 printf " * by running make sysent in the same directory.\n" > sysarg 87 printf " */\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\n" > sysarg 91 printf "#include <sys/signal.h>\n\n" > sysarg 92 printf "#include <sys/acl.h>\n\n" > sysarg 93 printf "#include <sys/msgport.h>\n\n" > sysarg 94 printf "#include <sys/sysmsg.h>\n\n" > sysarg 95 printf "#include <sys/procctl.h>\n\n" > sysarg 96 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg 97 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg 98 99 printf "\n#ifdef %s\n\n", compat > syscompat 100 101 printf "/*\n * System call names.\n *\n" > sysnames 102 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames 103 printf " * by running make sysent in the same directory.\n" > sysnames 104 printf " */\n\n" > sysnames 105 printf "const char *%s[] = {\n", namesname > sysnames 106 107 printf "/*\n * System call numbers.\n *\n" > syshdr 108 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr 109 printf " * by running make sysent in the same directory.\n" > syshdr 110 printf " */\n\n" > syshdr 111 112 printf "# DragonFly system call names.\n" > sysmk 113 printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk 114 printf "# by running make sysent in the same directory.\n" > sysmk 115 printf "MIASM = " > sysmk 116 117 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun 118 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun 119 printf " * by running make sysent in the same directory.\n" > sysun 120 printf " */\n\n" > sysun 121 printf "union sysunion {\n" > sysun 122 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun 123 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun 124 printf "\tstruct\tsysmsg sysmsg;\n" > sysun 125 printf "#endif\n" > sysun 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 "\n#ifdef _KERNEL\n\n" > sysdcl 131 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl 132 } 133 NF == 0 || $1 ~ /^;/ { 134 next 135 } 136 $1 ~ /^#[ ]*include/ { 137 print > sysinc 138 next 139 } 140 $1 ~ /^#[ ]*if/ { 141 print > sysent 142 print > sysdcl 143 print > sysarg 144 print > syscompat 145 print > sysnames 146 print > sysun 147 savesyscall = syscall 148 next 149 } 150 $1 ~ /^#[ ]*else/ { 151 print > sysent 152 print > sysdcl 153 print > sysarg 154 print > sysun 155 print > syscompat 156 print > sysnames 157 syscall = savesyscall 158 next 159 } 160 $1 ~ /^#/ { 161 print > sysent 162 print > sysdcl 163 print > sysarg 164 print > sysun 165 print > syscompat 166 print > sysnames 167 next 168 } 169 syscall != $1 { 170 printf "%s: line %d: syscall number out of sync at %d\n", 171 infile, NR, syscall 172 printf "line is:\n" 173 print 174 exit 1 175 } 176 function align_sysent_comment(column) { 177 printf("\t") > sysent 178 column = column + 8 - column % 8 179 while (column < 56) { 180 printf("\t") > sysent 181 column = column + 8 182 } 183 } 184 function parserr(was, wanted) { 185 printf "%s: line %d: unexpected %s (expected %s)\n", 186 infile, NR, was, wanted 187 exit 1 188 } 189 function parseline() { 190 f=3 # toss number and type 191 argc= 0; 192 argssize = "0" 193 if ($NF != "}") { 194 funcalias=$(NF-2) 195 argalias=$(NF-1) 196 rettype=$NF 197 end=NF-3 198 } else { 199 funcalias="" 200 argalias="" 201 rettype="int" 202 end=NF 203 } 204 if ($2 == "NODEF") { 205 funcname=$3 206 argssize = "AS(" $5 ")" 207 return 208 } 209 if ($f != "{") 210 parserr($f, "{") 211 f++ 212 if ($end != "}") 213 parserr($end, "}") 214 end-- 215 if ($end != ";") 216 parserr($end, ";") 217 end-- 218 if ($end != ")") 219 parserr($end, ")") 220 end-- 221 222 f++ #function return type 223 224 funcname=$f 225 usefuncname=$f 226 if (funcalias == "") 227 funcalias = funcname 228 if (argalias == "") { 229 argalias = funcname "_args" 230 if ($2 == "COMPAT") { 231 argalias = "o" argalias 232 usefuncname = "sys_o" funcname 233 } 234 } 235 f++ 236 237 if ($f != "(") 238 parserr($f, ")") 239 f++ 240 241 if (f == end) { 242 if ($f != "void") 243 parserr($f, "argument definition") 244 return 245 } 246 247 while (f <= end) { 248 argc++ 249 argtype[argc]="" 250 oldf="" 251 while (f < end && $(f+1) != ",") { 252 if (argtype[argc] != "" && oldf != "*") 253 argtype[argc] = argtype[argc]" "; 254 argtype[argc] = argtype[argc]$f; 255 oldf = $f; 256 f++ 257 } 258 if (argtype[argc] == "") 259 parserr($f, "argument definition") 260 argname[argc]=$f; 261 f += 2; # skip name, and any comma 262 } 263 if (argc != 0) 264 argssize = "AS(" argalias ")" 265 } 266 { comment = $3 267 if (NF < 6) 268 for (i = 4; i <= NF; i++) 269 comment = comment " " $i 270 } 271 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 272 || $2 == "NOIMPL" { 273 parseline() 274 if ((!nosys || funcname != "nosys") && \ 275 (funcname != "lkmnosys")) { 276 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 277 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 278 printf("struct\t%s {\n", argalias) > sysarg 279 printf("#ifdef _KERNEL\n") > sysarg 280 printf("\tstruct sysmsg sysmsg;\n") > sysarg 281 printf("#endif\n") > sysarg 282 for (i = 1; i <= argc; i++) 283 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 284 argtype[i], argname[i], 285 argname[i], argtype[i]) > sysarg 286 printf("};\n") > sysarg 287 } 288 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 289 $2 != "NODEF") { 290 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 291 printf("struct\t%s {\n", argalias) > sysarg 292 printf("#ifdef _KERNEL\n") > sysarg 293 printf("\tstruct sysmsg sysmsg;\n") > sysarg 294 printf("#endif\n") > sysarg 295 printf("\tregister_t dummy;\n") > sysarg 296 printf("};\n") > sysarg 297 } 298 } 299 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 300 (funcname != "nosys" || !nosys)) || \ 301 (funcname == "lkmnosys" && !lkmnosys) || \ 302 funcname == "lkmressys") { 303 printf("%s\tsys_%s (struct %s *)", 304 rettype, funcname, argalias) > sysdcl 305 printf(";\n") > sysdcl 306 } 307 if (funcname == "nosys") 308 nosys = 1 309 if (funcname == "lkmnosys") 310 lkmnosys = 1 311 printf("\t{ %s, (sy_call_t *)", argssize) > sysent 312 column = 8 + 2 + length(argssize) + 15 313 if ($2 != "NOIMPL") { 314 printf("sys_%s },", funcname) > sysent 315 column = column + length(funcname) + 7 316 } else { 317 printf("sys_%s },", "nosys") > sysent 318 column = column + length("nosys") + 7 319 } 320 align_sysent_comment(column) 321 printf("/* %d = %s */\n", syscall, funcalias) > sysent 322 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 323 funcalias, syscall, funcalias) > sysnames 324 if ($2 != "NODEF") { 325 printf("#define\t%s%s\t%d\n", syscallprefix, 326 funcalias, syscall) > syshdr 327 printf(" \\\n\t%s.o", funcalias) > sysmk 328 } 329 syscall++ 330 next 331 } 332 $2 == "COMPAT" || $2 == "CPT_NOA" { 333 ncompat++ 334 parseline() 335 if (argc != 0 && $2 != "CPT_NOA") { 336 printf("#ifdef %s\n", compat) > sysun 337 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 338 printf("#endif\n") > sysun 339 printf("struct\t%s {\n", argalias) > syscompat 340 printf("#ifdef _KERNEL\n") > syscompat 341 printf("\tstruct sysmsg sysmsg;\n") > syscompat 342 printf("#endif\n") > syscompat 343 for (i = 1; i <= argc; i++) 344 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 345 argtype[i], argname[i], 346 argname[i], argtype[i]) > syscompat 347 printf("};\n") > syscompat 348 } 349 else if($2 != "CPT_NOA") { 350 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 351 printf("struct\t%s {\n", argalias) > sysarg 352 printf("#ifdef _KERNEL\n") > sysarg 353 printf("\tstruct sysmsg sysmsg;\n") > sysarg 354 printf("#endif\n") > sysarg 355 printf("\tregister_t dummy;\n") > sysarg 356 printf("};\n") > sysarg 357 } 358 printf("%s\tsys_o%s (struct %s *);\n", 359 rettype, funcname, argalias) > syscompatdcl 360 printf("\t{ compat(%s,%s) },", 361 argssize, funcname) > sysent 362 align_sysent_comment(8 + 9 + \ 363 length(argssize) + 1 + length(funcname) + 4) 364 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 365 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 366 funcalias, syscall, funcalias) > sysnames 367 printf("\t\t\t\t/* %d is old %s */\n", 368 syscall, funcalias) > syshdr 369 syscall++ 370 next 371 } 372 $2 == "LIBCOMPAT" { 373 ncompat++ 374 parseline() 375 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl 376 printf("\t{ compat(%s,%s) },", 377 argssize, funcname) > sysent 378 align_sysent_comment(8 + 9 + \ 379 length(argssize) + 1 + length(funcname) + 4) 380 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 381 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 382 funcalias, syscall, funcalias) > sysnames 383 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", 384 syscallprefix, funcalias, syscall) > syshdr 385 printf(" \\\n\t%s.o", funcalias) > sysmk 386 syscall++ 387 next 388 } 389 $2 == "OBSOL" { 390 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent 391 align_sysent_comment(37) 392 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 393 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 394 $3, syscall, comment) > sysnames 395 printf("\t\t\t\t/* %d is obsolete %s */\n", 396 syscall, comment) > syshdr 397 syscall++ 398 next 399 } 400 $2 == "UNIMPL" { 401 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", 402 syscall, comment) > sysent 403 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 404 syscall, syscall, comment) > sysnames 405 syscall++ 406 next 407 } 408 { 409 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 410 exit 1 411 } 412 END { 413 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc 414 if (ncompat != 0) { 415 printf "#include \"opt_compat.h\"\n\n" > syssw 416 printf "\n#ifdef %s\n", compat > sysinc 417 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(o,name))\n" > sysinc 418 printf "#else\n" > sysinc 419 printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc 420 printf "#endif\n" > sysinc 421 } 422 423 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 424 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl 425 426 printf("\n") > sysmk 427 printf("};\n") > sysent 428 printf("};\n") > sysnames 429 printf("};\n") > sysun 430 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl 431 printf("#undef PAD_\n") > sysdcl 432 printf("\n#endif /* _KERNEL */\n") > sysdcl 433 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 434 > syshdr 435 } ' 436 437cat $sysinc $sysent >> $syssw 438cat $sysarg $syscompat $syscompatdcl $sysdcl > $sysproto 439cat $sysun > $sysunion 440