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 "#include <sys/sysproto.h>\n\n" > sysun 118 printf "union sysunion {\n" > sysun 119 120 printf "\n/* The casts are bogus but will do for now. */\n" > sysent 121 printf "struct sysent %s[] = {\n",switchname > sysent 122 123 printf "\n#ifdef _KERNEL\n\n" > sysdcl 124 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl 125 printf "struct sysmsg;\n\n" > sysdcl 126 printf "struct sysmsg;\n\n" > syscompatdcl 127 } 128 NF == 0 || $1 ~ /^;/ { 129 next 130 } 131 $1 ~ /^#[ ]*include/ { 132 print > sysinc 133 next 134 } 135 $1 ~ /^#[ ]*if/ { 136 print > sysent 137 print > sysdcl 138 print > sysarg 139 print > syscompat 140 print > sysnames 141 print > sysun 142 savesyscall = syscall 143 next 144 } 145 $1 ~ /^#[ ]*else/ { 146 print > sysent 147 print > sysdcl 148 print > sysarg 149 print > sysun 150 print > syscompat 151 print > sysnames 152 syscall = savesyscall 153 next 154 } 155 $1 ~ /^#/ { 156 print > sysent 157 print > sysdcl 158 print > sysarg 159 print > sysun 160 print > syscompat 161 print > sysnames 162 next 163 } 164 syscall != $1 { 165 printf "%s: line %d: syscall number out of sync at %d\n", 166 infile, NR, syscall 167 printf "line is:\n" 168 print 169 exit 1 170 } 171 function align_sysent_comment(column) { 172 printf("\t") > sysent 173 column = column + 8 - column % 8 174 while (column < 56) { 175 printf("\t") > sysent 176 column = column + 8 177 } 178 } 179 function parserr(was, wanted) { 180 printf "%s: line %d: unexpected %s (expected %s)\n", 181 infile, NR, was, wanted 182 exit 1 183 } 184 function parseline() { 185 f=3 # toss number and type 186 argc= 0; 187 argssize = "0" 188 if ($NF != "}") { 189 funcalias=$(NF-2) 190 argalias=$(NF-1) 191 rettype=$NF 192 end=NF-3 193 } else { 194 funcalias="" 195 argalias="" 196 rettype="int" 197 end=NF 198 } 199 if ($2 == "NODEF") { 200 funcname=$3 201 argssize = "AS(" $5 ")" 202 return 203 } 204 if ($f != "{") 205 parserr($f, "{") 206 f++ 207 if ($end != "}") 208 parserr($end, "}") 209 end-- 210 if ($end != ";") 211 parserr($end, ";") 212 end-- 213 if ($end != ")") 214 parserr($end, ")") 215 end-- 216 217 f++ #function return type 218 219 funcname=$f 220 usefuncname=$f 221 if (funcalias == "") 222 funcalias = funcname 223 if (argalias == "") 224 argalias = funcname "_args" 225 f++ 226 227 if ($f != "(") 228 parserr($f, ")") 229 f++ 230 231 if (f == end) { 232 if ($f != "void") 233 parserr($f, "argument definition") 234 return 235 } 236 237 while (f <= end) { 238 argc++ 239 argtype[argc]="" 240 oldf="" 241 while (f < end && $(f+1) != ",") { 242 if (argtype[argc] != "" && oldf != "*") 243 argtype[argc] = argtype[argc]" "; 244 argtype[argc] = argtype[argc]$f; 245 oldf = $f; 246 f++ 247 } 248 if (argtype[argc] == "") 249 parserr($f, "argument definition") 250 argname[argc]=$f; 251 f += 2; # skip name, and any comma 252 } 253 if (argc != 0) 254 argssize = "AS(" argalias ")" 255 } 256 { comment = $3 257 if (NF < 6) 258 for (i = 4; i <= NF; i++) 259 comment = comment " " $i 260 } 261 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \ 262 || $2 == "NOIMPL" { 263 parseline() 264 if ((!nosys || funcname != "nosys") && \ 265 (funcname != "lkmnosys")) { 266 if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") { 267 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 268 printf("struct\t%s {\n", argalias) > sysarg 269 for (i = 1; i <= argc; i++) 270 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n", 271 argtype[i], argname[i], 272 argname[i], argtype[i]) > sysarg 273 printf("};\n") > sysarg 274 } 275 else if ($2 != "NOARGS" && $2 != "NOPROTO" && \ 276 $2 != "NODEF") { 277 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun 278 printf("struct\t%s {\n", argalias) > sysarg 279 printf("\tregister_t dummy;\n") > sysarg 280 printf("};\n") > sysarg 281 } 282 } 283 if (($2 != "NOPROTO" && $2 != "NODEF" && \ 284 (funcname != "nosys" || !nosys)) || \ 285 (funcname == "lkmnosys" && !lkmnosys) || \ 286 funcname == "lkmressys") { 287 printf("%s\tsys_%s (struct sysmsg *sysmsg, const struct %s *)", 288 rettype, funcname, argalias) > sysdcl 289 printf(";\n") > sysdcl 290 } 291 if (funcname == "nosys") 292 nosys = 1 293 if (funcname == "lkmnosys") 294 lkmnosys = 1 295 printf("\t{ %s, (sy_call_t *)", argssize) > sysent 296 column = 8 + 2 + length(argssize) + 15 297 if ($2 != "NOIMPL") { 298 printf("sys_%s },", funcname) > sysent 299 column = column + length(funcname) + 7 300 } else { 301 printf("sys_%s },", "nosys") > sysent 302 column = column + length("nosys") + 7 303 } 304 align_sysent_comment(column) 305 printf("/* %d = %s */\n", syscall, funcalias) > sysent 306 printf("\t\"%s\",\t\t\t/* %d = %s */\n", 307 funcalias, syscall, funcalias) > sysnames 308 if ($2 != "NODEF") { 309 printf("#define\t%s%s\t%d\n", syscallprefix, 310 funcalias, syscall) > syshdr 311 printf(" \\\n\t%s.o", funcalias) > sysmk 312 } 313 syscall++ 314 next 315 } 316 $2 == "OBSOL" { 317 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent 318 align_sysent_comment(37) 319 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent 320 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", 321 $3, syscall, comment) > sysnames 322 printf("\t\t\t\t/* %d is obsolete %s */\n", 323 syscall, comment) > syshdr 324 syscall++ 325 next 326 } 327 $2 == "UNIMPL" { 328 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n", 329 syscall, comment) > sysent 330 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", 331 syscall, syscall, comment) > sysnames 332 syscall++ 333 next 334 } 335 { 336 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 337 exit 1 338 } 339 END { 340 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc 341 if (ncompat != 0) 342 printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc 343 344 printf("\n#undef PAD_\n") > sysarg 345 printf("\n#endif /* _KERNEL */\n") > syscompatdcl 346 printf("\n#endif /* _KERNEL */\n") > sysdcl 347 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl 348 349 printf("\n") > sysmk 350 printf("};\n") > sysent 351 printf("};\n") > sysnames 352 printf("};\n") > sysun 353 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \ 354 > syshdr 355 } ' 356 357cat $sysinc $sysent >> $syssw 358cat $sysarg $syscompat $syscompatdcl $sysdcl > $sysproto 359cat $sysun > $sysunion 360