Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/kern/makesyscalls.sh
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
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1 #! /bin/sh - 2 # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93 3 # $FreeBSD$ 4 5 set -e 6 7 # name of compat option: 8 compat=COMPAT_43 9 10 # output files: 11 sysnames="syscalls.c" 12 sysproto="../sys/sysproto.h" 13 sysproto_h=_SYS_SYSPROTO_H_ 14 syshdr="../sys/syscall.h" 15 sysmk="../sys/syscall.mk" 16 syssw="init_sysent.c" 17 syshide="../sys/syscall-hide.h" 18 syscallprefix="SYS_" 19 switchname="sysent" 20 namesname="syscallnames" 21 22 # tmp files: 23 sysdcl="sysent.dcl.$$" 24 syscompat="sysent.compat.$$" 25 syscompatdcl="sysent.compatdcl.$$" 26 sysent="sysent.switch.$$" 27 sysinc="sysinc.switch.$$" 28 sysarg="sysarg.switch.$$" 29 30 trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg" 0 31 32 touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg 33 34 case $# in 35 0) echo "Usage: $0 input-file <config-file>" 1>&2 36 exit 1 37 ;; 38 esac 39 40 if [ -n "$2" -a -f "$2" ]; then 41 . $2 42 fi 43 44 sed -e ' 45 s/\$//g 46 :join 47 /\\$/{a\ 48 49 N 50 s/\\\n// 51 b join 52 } 53 2,${ 54 /^#/!s/\([{}()*,]\)/ \1 /g 55 } 56 ' < $1 | awk " 57 BEGIN { 58 sysdcl = \"$sysdcl\" 59 sysproto = \"$sysproto\" 60 sysproto_h = \"$sysproto_h\" 61 syscompat = \"$syscompat\" 62 syscompatdcl = \"$syscompatdcl\" 63 sysent = \"$sysent\" 64 syssw = \"$syssw\" 65 sysinc = \"$sysinc\" 66 sysarg = \"$sysarg\" 67 sysnames = \"$sysnames\" 68 syshdr = \"$syshdr\" 69 sysmk = \"$sysmk\" 70 compat = \"$compat\" 71 syshide = \"$syshide\" 72 syscallprefix = \"$syscallprefix\" 73 switchname = \"$switchname\" 74 namesname = \"$namesname\" 75 infile = \"$1\" 76 "' 77 78 printf "/*\n * System call switch table.\n *\n" > syssw 79 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw 80 printf " * \$\FreeBSD\$\n" > syssw 81 82 printf "/*\n * System call prototypes.\n *\n" > sysarg 83 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg 84 printf " * \$\FreeBSD\$\n" > sysarg 85 86 printf "\n#ifdef %s\n\n", compat > syscompat 87 88 printf "/*\n * System call names.\n *\n" > sysnames 89 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames 90 printf " * \$\FreeBSD\$\n" > sysnames 91 92 printf "/*\n * System call numbers.\n *\n" > syshdr 93 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr 94 printf " * \$\FreeBSD\$\n" > syshdr 95 printf "# FreeBSD system call names.\n" > sysmk 96 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk 97 printf "# \$\FreeBSD\$\n" > sysmk 98 printf "/*\n * System call hiders.\n *\n" > syshide 99 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide 100 printf " * \$\FreeBSD\$\n" > syshide 101 } 102 NR == 1 { 103 gsub("[$]FreeBSD: ", "", $0) 104 gsub(" [$]", "", $0) 105 106 printf " * created from%s\n */\n\n", $0 > syssw 107 108 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 109 printf "struct sysent %s[] = {\n",switchname > sysent 110 111 printf " * created from%s\n */\n\n", $0 > sysarg 112 printf "#ifndef %s\n", sysproto_h > sysarg 113 printf "#define\t%s\n\n", sysproto_h > sysarg 114 printf "#include <sys/signal.h>\n\n" > sysarg 115 printf "#include <sys/acl.h>\n\n" > sysarg 116 printf "struct proc;\n\n" > sysarg 117 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg 118 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg 119 120 printf " * created from%s\n */\n\n", $0 > sysnames 121 printf "char *%s[] = {\n", namesname > sysnames 122 123 printf " * created from%s\n */\n\n", $0 > syshdr 124 125 printf "# created from%s\nMIASM = ", $0 > sysmk 126 127 printf " * created from%s\n */\n\n", $0 > syshide 128 next 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 > syshide 144 savesyscall = syscall 145 next 146 } 147 $1 ~ /^#[ ]*else/ { 148 print > sysent 149 print > sysdcl 150 print > sysarg 151 print > syscompat 152 print > sysnames 153 print > syshide 154 syscall = savesyscall 155 next 156 } 157 $1 ~ /^#/ { 158 print > sysent 159 print > sysdcl 160 print > sysarg 161 print > syscompat 162 print > sysnames 163 print > syshide 164 next 165 } 166 syscall != $1 { 167 printf "%s: line %d: syscall number out of sync at %d\n", 168 infile, NR, syscall 169 printf "line is:\n" 170 print 171 exit 1 172 } 173 function align_sysent_comment(column) { 174 printf("\t") > sysent 175 column = column + 8 - column % 8 176 while (column < 56) { 177 printf("\t") > sysent 178 column = column + 8 179 } 180 } 181 function parserr(was, wanted) { 182 printf "%s: line %d: unexpected %s (expected %s)\n", 183 infile, NR, was, wanted 184 exit 1 185 } 186 function parseline() { 187 f=4 # toss number and type 188 argc= 0; 189 argssize = "0" 190 if ($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=$4 203 argssize = "AS(" $6 ")" 204 return 205 } 206 if ($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 if (funcalias == "") 223 funcalias = funcname 224 if (argalias == "") { 225 argalias = funcname "_args" 226 if ($2 == "COMPAT") 227 argalias = "o" argalias 228 } 229 f++ 230 231 if ($f != "(") 232 parserr($f, ")") 233 f++ 234 235 if (f == end) { 236 if ($f != "void") 237 parserr($f, "argument definition") 238 return 239 } 240 241 while (f <= end) { 242 argc++ 243 argtype[argc]="" 244 oldf="" 245 while (f < end && $(f+1) != ",") { 246 if (argtype[argc] != "" && oldf != "*") 247 argtype[argc] = argtype[argc]" "; 248 argtype[argc] = argtype[argc]$f; 249 oldf = $f; 250 f++ 251 } 252 if (argtype[argc] == "") 253 parserr($f, "argument definition") 254 argname[argc]=$f; 255 f += 2; # skip name, and any comma 256 } 257 if (argc != 0) 258 argssize = "AS(" argalias ")" 259 } 260 { comment = $4 261 if (NF < 7) 262 for (i = 5; i <= NF; i++) 263 comment = comment " " $i 264 } 265 # if the "MPSAFE" keyword is found, note it and shift the line 266 mpsafe = "" 267 $2 == "MPSAFE" { 268 for (i = 2; i <= NF; i++) 269 $i = $(i + 1); 270 NF -= 1; 271 mpsafe = "SYF_MPSAFE | " 272 } 273 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 274 || $2 == "NOIMPL" { 275 parseline() 276 if ((!nosys || funcname != "nosys") && \ 277 (funcname != "lkmnosys")) { 278 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 279 printf("struct\t%s {\n", argalias) > sysarg 280 for (i = 1; i <= argc; i++) 281 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 282 argtype[i], argname[i], 283 argname[i], argtype[i]) > sysarg 284 printf("};\n") > sysarg 285 } 286 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 287 $2 != "NODEF") 288 printf("struct\t%s {\n\tregister_t dummy;\n};\n", 289 argalias) > sysarg 290 } 291 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 292 (funcname != "nosys" || !nosys)) || \ 293 (funcname == "lkmnosys" && !lkmnosys) || \ 294 funcname == "lkmressys") { 295 printf("%s\t%s __P((struct proc *, struct %s *))", 296 rettype, funcname, argalias) > sysdcl 297 printf(";\n") > sysdcl 298 } 299 if (funcname == "nosys") 300 nosys = 1 301 if (funcname == "lkmnosys") 302 lkmnosys = 1 303 printf("\t{ %s%s, (sy_call_t *)", mpsafe, argssize) > sysent 304 column = 8 + 2 + length(mpsafe) + length(argssize) + 15 305 if ($2 != "NOIMPL") { 306 printf("%s },", funcname) > sysent 307 column = column + length(funcname) + 3 308 } else { 309 printf("%s },", "nosys") > sysent 310 column = column + length("nosys") + 3 311 } 312 align_sysent_comment(column) 313 printf("/* %d = %s */\n", syscall, funcalias) > sysent 314 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 315 funcalias, syscall, funcalias) > sysnames 316 if ($2 != "NODEF") { 317 printf("#define\t%s%s\t%d\n", syscallprefix, 318 funcalias, syscall) > syshdr 319 printf(" \\\n\t%s.o", funcalias) > sysmk 320 } 321 if ($3 != "NOHIDE") 322 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 323 syscall++ 324 next 325 } 326 $2 == "COMPAT" || $2 == "CPT_NOA" { 327 ncompat++ 328 parseline() 329 if (argc != 0 && $2 != "CPT_NOA") { 330 printf("struct\t%s {\n", argalias) > syscompat 331 for (i = 1; i <= argc; i++) 332 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 333 argtype[i], argname[i], 334 argname[i], argtype[i]) > syscompat 335 printf("};\n") > syscompat 336 } 337 else if($2 != "CPT_NOA") 338 printf("struct\t%s {\n\tregister_t dummy;\n};\n", 339 argalias) > sysarg 340 printf("%s\to%s __P((struct proc *, struct %s *));\n", 341 rettype, funcname, argalias) > syscompatdcl 342 printf("\t{ compat(%s%s,%s) },", 343 mpsafe, argssize, funcname) > sysent 344 align_sysent_comment(8 + 9 + length(mpsafe) + \ 345 length(argssize) + 1 + length(funcname) + 4) 346 printf("/* %d = old %s */\n", syscall, funcalias) > sysent 347 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", 348 funcalias, syscall, funcalias) > sysnames 349 printf("\t\t\t\t/* %d is old %s */\n", 350 syscall, funcalias) > syshdr 351 if ($3 != "NOHIDE") 352 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 353 syscall++ 354 next 355 } 356 $2 == "LIBCOMPAT" { 357 ncompat++ 358 parseline() 359 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl 360 printf("\t{ compat(%s%s,%s) },", 361 mpsafe, argssize, funcname) > sysent 362 align_sysent_comment(8 + 9 + length(mpsafe) + \ 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("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", 368 syscallprefix, funcalias, syscall) > syshdr 369 printf(" \\\n\t%s.o", funcalias) > sysmk 370 if ($3 != "NOHIDE") 371 printf("HIDE_%s(%s)\n", $3, funcname) > syshide 372 syscall++ 373 next 374 } 375 $2 == "OBSOL" { 376 printf("\t{ 0, (sy_call_t *)nosys },") > sysent 377 align_sysent_comment(34) 378 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 379 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 380 $4, syscall, comment) > sysnames 381 printf("\t\t\t\t/* %d is obsolete %s */\n", 382 syscall, comment) > syshdr 383 if ($3 != "NOHIDE") 384 printf("HIDE_%s(%s)\n", $3, $4) > syshide 385 syscall++ 386 next 387 } 388 $2 == "UNIMPL" { 389 printf("\t{ 0, (sy_call_t *)nosys },\t\t\t/* %d = %s */\n", 390 syscall, comment) > sysent 391 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 392 syscall, syscall, comment) > sysnames 393 if ($3 != "NOHIDE") 394 printf("HIDE_%s(%s)\n", $3, $4) > syshide 395 syscall++ 396 next 397 } 398 { 399 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 400 exit 1 401 } 402 END { 403 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc 404 if (ncompat != 0) { 405 printf "#include \"opt_compat.h\"\n\n" > syssw 406 printf "\n#ifdef %s\n", compat > sysinc 407 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc 408 printf "#else\n" > sysinc 409 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc 410 printf "#endif\n" > sysinc 411 } 412 413 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl 414 printf("#undef PAD_\n") > syscompatdcl 415 printf("\n#endif /* !%s */\n", sysproto_h) > syscompatdcl 416 417 printf("\n") > sysmk 418 printf("};\n") > sysent 419 printf("};\n") > sysnames 420 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 421 > syshdr 422 } ' 423 424 cat $sysinc $sysent >> $syssw 425 cat $sysarg $sysdcl $syscompat $syscompatdcl > $sysproto
Cache object: 69e8c6420a02c5c80a4d2b0b116c88fe
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