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/syslink.h>\n\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#ifdef %s\n\n", compat > syscompat 101 102 printf "/*\n * System call names.\n *\n" > sysnames 103 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames 104 printf " * by running make sysent in the same directory.\n" > sysnames 105 printf " */\n\n" > sysnames 106 printf "const char *%s[] = {\n", namesname > sysnames 107 108 printf "/*\n * System call numbers.\n *\n" > syshdr 109 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr 110 printf " * by running make sysent in the same directory.\n" > syshdr 111 printf " */\n\n" > syshdr 112 113 printf "# DragonFly system call names.\n" > sysmk 114 printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk 115 printf "# by running make sysent in the same directory.\n" > sysmk 116 printf "MIASM = " > sysmk 117 118 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun 119 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun 120 printf " * by running make sysent in the same directory.\n" > sysun 121 printf " */\n\n" > sysun 122 printf "union sysunion {\n" > sysun 123 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun 124 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun 125 printf "\tstruct\tsysmsg sysmsg;\n" > sysun 126 printf "#endif\n" > sysun 127 128 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 129 printf "struct sysent %s[] = {\n",switchname > sysent 130 131 printf "\n#ifdef _KERNEL\n\n" > sysdcl 132 printf "\n#ifdef _KERNEL\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 != $1 { 171 printf "%s: line %d: syscall number out of sync at %d\n", 172 infile, NR, syscall 173 printf "line is:\n" 174 print 175 exit 1 176 } 177 function align_sysent_comment(column) { 178 printf("\t") > sysent 179 column = column + 8 - column % 8 180 while (column < 56) { 181 printf("\t") > sysent 182 column = column + 8 183 } 184 } 185 function parserr(was, wanted) { 186 printf "%s: line %d: unexpected %s (expected %s)\n", 187 infile, NR, was, wanted 188 exit 1 189 } 190 function parseline() { 191 f=3 # toss number and type 192 argc= 0; 193 argssize = "0" 194 if ($NF != "}") { 195 funcalias=$(NF-2) 196 argalias=$(NF-1) 197 rettype=$NF 198 end=NF-3 199 } else { 200 funcalias="" 201 argalias="" 202 rettype="int" 203 end=NF 204 } 205 if ($2 == "NODEF") { 206 funcname=$3 207 argssize = "AS(" $5 ")" 208 return 209 } 210 if ($f != "{") 211 parserr($f, "{") 212 f++ 213 if ($end != "}") 214 parserr($end, "}") 215 end-- 216 if ($end != ";") 217 parserr($end, ";") 218 end-- 219 if ($end != ")") 220 parserr($end, ")") 221 end-- 222 223 f++ #function return type 224 225 funcname=$f 226 usefuncname=$f 227 if (funcalias == "") 228 funcalias = funcname 229 if (argalias == "") { 230 argalias = funcname "_args" 231 if ($2 == "COMPAT") { 232 argalias = "o" argalias 233 usefuncname = "sys_o" funcname 234 } 235 } 236 f++ 237 238 if ($f != "(") 239 parserr($f, ")") 240 f++ 241 242 if (f == end) { 243 if ($f != "void") 244 parserr($f, "argument definition") 245 return 246 } 247 248 while (f <= end) { 249 argc++ 250 argtype[argc]="" 251 oldf="" 252 while (f < end && $(f+1) != ",") { 253 if (argtype[argc] != "" && oldf != "*") 254 argtype[argc] = argtype[argc]" "; 255 argtype[argc] = argtype[argc]$f; 256 oldf = $f; 257 f++ 258 } 259 if (argtype[argc] == "") 260 parserr($f, "argument definition") 261 argname[argc]=$f; 262 f += 2; # skip name, and any comma 263 } 264 if (argc != 0) 265 argssize = "AS(" argalias ")" 266 } 267 { comment = $3 268 if (NF < 6) 269 for (i = 4; i <= NF; i++) 270 comment = comment " " $i 271 } 272 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 273 || $2 == "NOIMPL" { 274 parseline() 275 if ((!nosys || funcname != "nosys") && \ 276 (funcname != "lkmnosys")) { 277 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 278 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 279 printf("struct\t%s {\n", argalias) > sysarg 280 printf("#ifdef _KERNEL\n") > sysarg 281 printf("\tstruct sysmsg sysmsg;\n") > sysarg 282 printf("#endif\n") > sysarg 283 for (i = 1; i <= argc; i++) 284 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 285 argtype[i], argname[i], 286 argname[i], argtype[i]) > sysarg 287 printf("};\n") > sysarg 288 } 289 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 290 $2 != "NODEF") { 291 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 292 printf("struct\t%s {\n", argalias) > sysarg 293 printf("#ifdef _KERNEL\n") > sysarg 294 printf("\tstruct sysmsg sysmsg;\n") > sysarg 295 printf("#endif\n") > 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 %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, (sy_call_t *)", argssize) > 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 == "COMPAT" || $2 == "CPT_NOA" { 334 ncompat++ 335 parseline() 336 if (argc != 0 && $2 != "CPT_NOA") { 337 printf("#ifdef %s\n", compat) > sysun 338 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 339 printf("#endif\n") > sysun 340 printf("struct\t%s {\n", argalias) > syscompat 341 printf("#ifdef _KERNEL\n") > syscompat 342 printf("\tstruct sysmsg sysmsg;\n") > syscompat 343 printf("#endif\n") > syscompat 344 for (i = 1; i <= argc; i++) 345 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 346 argtype[i], argname[i], 347 argname[i], argtype[i]) > syscompat 348 printf("};\n") > syscompat 349 } 350 else if($2 != "CPT_NOA") { 351 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 352 printf("struct\t%s {\n", argalias) > sysarg 353 printf("#ifdef _KERNEL\n") > sysarg 354 printf("\tstruct sysmsg sysmsg;\n") > sysarg 355 printf("#endif\n") > sysarg 356 printf("\tregister_t dummy;\n") > sysarg 357 printf("};\n") > sysarg 358 } 359 printf("%s\tsys_o%s (struct %s *);\n", 360 rettype, funcname, argalias) > syscompatdcl 361 printf("\t{ compat(%s,%s) },", 362 argssize, funcname) > sysent 363 align_sysent_comment(8 + 9 + \ 364 length(argssize) + 1 + length(funcname) + 4) 365 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 366 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 367 funcalias, syscall, funcalias) > sysnames 368 printf("\t\t\t\t/* %d is old %s */\n", 369 syscall, funcalias) > syshdr 370 syscall++ 371 next 372 } 373 $2 == "LIBCOMPAT" { 374 ncompat++ 375 parseline() 376 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl 377 printf("\t{ compat(%s,%s) },", 378 argssize, funcname) > sysent 379 align_sysent_comment(8 + 9 + \ 380 length(argssize) + 1 + length(funcname) + 4) 381 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 382 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 383 funcalias, syscall, funcalias) > sysnames 384 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", 385 syscallprefix, funcalias, syscall) > syshdr 386 printf(" \\\n\t%s.o", funcalias) > sysmk 387 syscall++ 388 next 389 } 390 $2 == "OBSOL" { 391 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent 392 align_sysent_comment(37) 393 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 394 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 395 $3, syscall, comment) > sysnames 396 printf("\t\t\t\t/* %d is obsolete %s */\n", 397 syscall, comment) > syshdr 398 syscall++ 399 next 400 } 401 $2 == "UNIMPL" { 402 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", 403 syscall, comment) > sysent 404 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 405 syscall, syscall, comment) > sysnames 406 syscall++ 407 next 408 } 409 { 410 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 411 exit 1 412 } 413 END { 414 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc 415 if (ncompat != 0) { 416 printf "#include \"opt_compat.h\"\n\n" > syssw 417 printf "\n#ifdef %s\n", compat > sysinc 418 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(o,name))\n" > sysinc 419 printf "#else\n" > sysinc 420 printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc 421 printf "#endif\n" > sysinc 422 } 423 424 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 425 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl 426 427 printf("\n") > sysmk 428 printf("};\n") > sysent 429 printf("};\n") > sysnames 430 printf("};\n") > sysun 431 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl 432 printf("#undef PAD_\n") > sysdcl 433 printf("\n#endif /* _KERNEL */\n") > sysdcl 434 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 435 > syshdr 436 } ' 437 438cat $sysinc $sysent >> $syssw 439cat $sysarg $syscompat $syscompatdcl $sysdcl > $sysproto 440cat $sysun > $sysunion 441