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