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 %s\n", sysproto_h > sysarg 86 printf "#define\t%s\n\n", sysproto_h > sysarg 87 printf "#include <sys/select.h>\n" > sysarg 88 printf "#include <sys/signal.h>\n" > sysarg 89 printf "#include <sys/acl.h>\n" > sysarg 90 printf "#include <sys/cpumask.h>\n" > sysarg 91 printf "#include <sys/mqueue.h>\n" > sysarg 92 printf "#include <sys/msgport.h>\n" > sysarg 93 printf "#include <sys/sysmsg.h>\n" > sysarg 94 printf "#include <sys/procctl.h>\n\n" > sysarg 95 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg 96 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg 97 98 printf "/*\n * System call names.\n *\n" > sysnames 99 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames 100 printf " * by running make sysent in the same directory.\n" > sysnames 101 printf " */\n\n" > sysnames 102 printf "const char *%s[] = {\n", namesname > sysnames 103 104 printf "/*\n * System call numbers.\n *\n" > syshdr 105 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr 106 printf " * by running make sysent in the same directory.\n" > syshdr 107 printf " */\n\n" > syshdr 108 109 printf "# DragonFly system call names.\n" > sysmk 110 printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk 111 printf "# by running make sysent in the same directory.\n" > sysmk 112 printf "MIASM = " > sysmk 113 114 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun 115 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun 116 printf " * by running make sysent in the same directory.\n" > sysun 117 printf " */\n\n" > sysun 118 printf "union sysunion {\n" > sysun 119 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun 120 #printf "\tstruct\tlwkt_msg lmsg;\n" > sysun 121 printf "\tstruct\tsysmsg sysmsg;\n" > sysun 122 printf "#endif\n" > sysun 123 124 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 125 printf "struct sysent %s[] = {\n",switchname > sysent 126 127 printf "\n#ifdef _KERNEL\n\n" > sysdcl 128 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl 129 } 130 NF == 0 || $1 ~ /^;/ { 131 next 132 } 133 $1 ~ /^#[ ]*include/ { 134 print > sysinc 135 next 136 } 137 $1 ~ /^#[ ]*if/ { 138 print > sysent 139 print > sysdcl 140 print > sysarg 141 print > syscompat 142 print > sysnames 143 print > sysun 144 savesyscall = syscall 145 next 146 } 147 $1 ~ /^#[ ]*else/ { 148 print > sysent 149 print > sysdcl 150 print > sysarg 151 print > sysun 152 print > syscompat 153 print > sysnames 154 syscall = savesyscall 155 next 156 } 157 $1 ~ /^#/ { 158 print > sysent 159 print > sysdcl 160 print > sysarg 161 print > sysun 162 print > syscompat 163 print > sysnames 164 next 165 } 166 syscall != $1 { 167 printf "%s: line %d: syscall number out of sync at %d\n", 168 infile, NR, syscall 169 printf "line is:\n" 170 print 171 exit 1 172 } 173 function align_sysent_comment(column) { 174 printf("\t") > sysent 175 column = column + 8 - column % 8 176 while (column < 56) { 177 printf("\t") > sysent 178 column = column + 8 179 } 180 } 181 function parserr(was, wanted) { 182 printf "%s: line %d: unexpected %s (expected %s)\n", 183 infile, NR, was, wanted 184 exit 1 185 } 186 function parseline() { 187 f=3 # toss number and type 188 argc= 0; 189 argssize = "0" 190 if ($NF != "}") { 191 funcalias=$(NF-2) 192 argalias=$(NF-1) 193 rettype=$NF 194 end=NF-3 195 } else { 196 funcalias="" 197 argalias="" 198 rettype="int" 199 end=NF 200 } 201 if ($2 == "NODEF") { 202 funcname=$3 203 argssize = "AS(" $5 ")" 204 return 205 } 206 if ($f != "{") 207 parserr($f, "{") 208 f++ 209 if ($end != "}") 210 parserr($end, "}") 211 end-- 212 if ($end != ";") 213 parserr($end, ";") 214 end-- 215 if ($end != ")") 216 parserr($end, ")") 217 end-- 218 219 f++ #function return type 220 221 funcname=$f 222 usefuncname=$f 223 if (funcalias == "") 224 funcalias = funcname 225 if (argalias == "") { 226 argalias = funcname "_args" 227 if ($2 == "COMPAT") { 228 argalias = "o" argalias 229 usefuncname = "sys_o" funcname 230 } 231 } 232 f++ 233 234 if ($f != "(") 235 parserr($f, ")") 236 f++ 237 238 if (f == end) { 239 if ($f != "void") 240 parserr($f, "argument definition") 241 return 242 } 243 244 while (f <= end) { 245 argc++ 246 argtype[argc]="" 247 oldf="" 248 while (f < end && $(f+1) != ",") { 249 if (argtype[argc] != "" && oldf != "*") 250 argtype[argc] = argtype[argc]" "; 251 argtype[argc] = argtype[argc]$f; 252 oldf = $f; 253 f++ 254 } 255 if (argtype[argc] == "") 256 parserr($f, "argument definition") 257 argname[argc]=$f; 258 f += 2; # skip name, and any comma 259 } 260 if (argc != 0) 261 argssize = "AS(" argalias ")" 262 } 263 { comment = $3 264 if (NF < 6) 265 for (i = 4; i <= NF; i++) 266 comment = comment " " $i 267 } 268 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 269 || $2 == "NOIMPL" { 270 parseline() 271 if ((!nosys || funcname != "nosys") && \ 272 (funcname != "lkmnosys")) { 273 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 274 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 275 printf("struct\t%s {\n", argalias) > sysarg 276 printf("#ifdef _KERNEL\n") > sysarg 277 printf("\tstruct sysmsg sysmsg;\n") > sysarg 278 printf("#endif\n") > sysarg 279 for (i = 1; i <= argc; i++) 280 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 281 argtype[i], argname[i], 282 argname[i], argtype[i]) > sysarg 283 printf("};\n") > sysarg 284 } 285 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 286 $2 != "NODEF") { 287 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 288 printf("struct\t%s {\n", argalias) > sysarg 289 printf("#ifdef _KERNEL\n") > sysarg 290 printf("\tstruct sysmsg sysmsg;\n") > sysarg 291 printf("#endif\n") > sysarg 292 printf("\tregister_t dummy;\n") > sysarg 293 printf("};\n") > sysarg 294 } 295 } 296 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 297 (funcname != "nosys" || !nosys)) || \ 298 (funcname == "lkmnosys" && !lkmnosys) || \ 299 funcname == "lkmressys") { 300 printf("%s\tsys_%s (struct %s *)", 301 rettype, funcname, argalias) > sysdcl 302 printf(";\n") > sysdcl 303 } 304 if (funcname == "nosys") 305 nosys = 1 306 if (funcname == "lkmnosys") 307 lkmnosys = 1 308 printf("\t{ %s, (sy_call_t *)", argssize) > sysent 309 column = 8 + 2 + length(argssize) + 15 310 if ($2 != "NOIMPL") { 311 printf("sys_%s },", funcname) > sysent 312 column = column + length(funcname) + 7 313 } else { 314 printf("sys_%s },", "nosys") > sysent 315 column = column + length("nosys") + 7 316 } 317 align_sysent_comment(column) 318 printf("/* %d = %s */\n", syscall, funcalias) > sysent 319 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 320 funcalias, syscall, funcalias) > sysnames 321 if ($2 != "NODEF") { 322 printf("#define\t%s%s\t%d\n", syscallprefix, 323 funcalias, syscall) > syshdr 324 printf(" \\\n\t%s.o", funcalias) > sysmk 325 } 326 syscall++ 327 next 328 } 329 $2 == "COMPAT" || $2 == "CPT_NOA" { 330 ncompat++ 331 parseline() 332 if (argc != 0 && $2 != "CPT_NOA") { 333 printf("struct\t%s {\n", argalias) > syscompat 334 printf("#ifdef _KERNEL\n") > syscompat 335 printf("\tstruct sysmsg sysmsg;\n") > syscompat 336 printf("#endif\n") > syscompat 337 for (i = 1; i <= argc; i++) 338 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 339 argtype[i], argname[i], 340 argname[i], argtype[i]) > syscompat 341 printf("};\n") > syscompat 342 } 343 else if($2 != "CPT_NOA") { 344 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 345 printf("struct\t%s {\n", argalias) > sysarg 346 printf("#ifdef _KERNEL\n") > sysarg 347 printf("\tstruct sysmsg sysmsg;\n") > sysarg 348 printf("#endif\n") > sysarg 349 printf("\tregister_t dummy;\n") > sysarg 350 printf("};\n") > sysarg 351 } 352 printf("%s\tsys_o%s (struct %s *);\n", 353 rettype, funcname, argalias) > syscompatdcl 354 printf("\t{ compat(%s,%s) },", 355 argssize, funcname) > sysent 356 align_sysent_comment(8 + 9 + \ 357 length(argssize) + 1 + length(funcname) + 4) 358 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 359 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 360 funcalias, syscall, funcalias) > sysnames 361 printf("\t\t\t\t/* %d is old %s */\n", 362 syscall, funcalias) > syshdr 363 syscall++ 364 next 365 } 366 $2 == "LIBCOMPAT" { 367 ncompat++ 368 parseline() 369 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl 370 printf("\t{ compat(%s,%s) },", 371 argssize, funcname) > sysent 372 align_sysent_comment(8 + 9 + \ 373 length(argssize) + 1 + length(funcname) + 4) 374 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 375 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 376 funcalias, syscall, funcalias) > sysnames 377 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", 378 syscallprefix, funcalias, syscall) > syshdr 379 printf(" \\\n\t%s.o", funcalias) > sysmk 380 syscall++ 381 next 382 } 383 $2 == "OBSOL" { 384 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent 385 align_sysent_comment(37) 386 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 387 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 388 $3, syscall, comment) > sysnames 389 printf("\t\t\t\t/* %d is obsolete %s */\n", 390 syscall, comment) > syshdr 391 syscall++ 392 next 393 } 394 $2 == "UNIMPL" { 395 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", 396 syscall, comment) > sysent 397 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 398 syscall, syscall, comment) > sysnames 399 syscall++ 400 next 401 } 402 { 403 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 404 exit 1 405 } 406 END { 407 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc 408 if (ncompat != 0) 409 printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc 410 411 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 412 413 printf("\n") > sysmk 414 printf("};\n") > sysent 415 printf("};\n") > sysnames 416 printf("};\n") > sysun 417 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl 418 printf("#undef PAD_\n") > sysdcl 419 printf("\n#endif /* _KERNEL */\n") > sysdcl 420 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 421 > syshdr 422 } ' 423 424cat $sysinc $sysent >> $syssw 425cat $sysarg $syscompat $syscompatdcl $sysdcl > $sysproto 426cat $sysun > $sysunion 427