projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 34d9b70e BJ |
1 | /* USE <wait.h> */ |
| 2 | static char sccsid[] = "@(#)cc.c 3.1 %G%"; | |
| 3 | /* | |
| 4 | * cc - front end for C compiler | |
| 5 | */ | |
| 6 | #include <sys/types.h> | |
| 7 | #include <stdio.h> | |
| 8 | #include <ctype.h> | |
| 9 | #include <signal.h> | |
| 10 | #include <dir.h> | |
| 11 | ||
| 12 | char *cpp = "/usr/new/cpp"; | |
| 13 | char *ccom = "/usr/new/ccom"; | |
| 14 | char *c2 = "/usr/new/c2"; | |
| 15 | char *as = "/usr/new/as"; | |
| 16 | char *ld = "/usr/new/ld"; | |
| 17 | char *crt0 = "/usr/new/crt0.o"; | |
| 18 | ||
| 19 | char tmp0[30]; /* big enough for /tmp/ctm%05.5d */ | |
| 20 | char *tmp1, *tmp2, *tmp3, *tmp4, *tmp5; | |
| 21 | char *outfile; | |
| 22 | char *savestr(), *strspl(), *setsuf(); | |
| 23 | int idexit(); | |
| 24 | char **av, **clist, **llist, **plist; | |
| 25 | int cflag, eflag, gflag, oflag, pflag, sflag, wflag, cps8, exflag, proflag; | |
| 26 | char *dflag; | |
| 27 | int exfail; | |
| 28 | char *chpass; | |
| 29 | char *npassname; | |
| 30 | ||
| 31 | int nc, nl, np, nxo, na; | |
| 32 | ||
| 33 | #define cunlink(s) if (s) unlink(s) | |
| 34 | ||
| 35 | main(argc, argv) | |
| 36 | char **argv; | |
| 37 | { | |
| 38 | char *t; | |
| 39 | char *assource; | |
| 40 | int i, j, c; | |
| 41 | ||
| 42 | /* ld currently adds upto 5 args; 10 is room to spare */ | |
| 43 | av = (char **)calloc(argc+10, sizeof (char **)); | |
| 44 | clist = (char **)calloc(argc, sizeof (char **)); | |
| 45 | llist = (char **)calloc(argc, sizeof (char **)); | |
| 46 | plist = (char **)calloc(argc, sizeof (char **)); | |
| 47 | for (i = 1; i < argc; i++) { | |
| 48 | if (*argv[i] == '-') switch (argv[i][1]) { | |
| 49 | ||
| 50 | case '8': | |
| 51 | cps8++; | |
| 52 | cpp = "/usr/bin/8cpp"; | |
| 53 | ccom = "/usr/lib/8ccom"; | |
| 54 | c2 = "/usr/bin/8c2"; | |
| 55 | as = "/usr/bin/8as"; | |
| 56 | ld = "/usr/bin/8ld"; | |
| 57 | crt0 = "/usr/lib/8crt0"; | |
| 58 | continue; | |
| 59 | case 'S': | |
| 60 | sflag++; | |
| 61 | cflag++; | |
| 62 | continue; | |
| 63 | case 'o': | |
| 64 | if (++i < argc) { | |
| 65 | outfile = argv[i]; | |
| 66 | switch (getsuf(outfile)) { | |
| 67 | ||
| 68 | case 'c': | |
| 69 | case 'o': | |
| 70 | error("-o would overwrite %s", | |
| 71 | outfile); | |
| 72 | exit(8); | |
| 73 | } | |
| 74 | } | |
| 75 | continue; | |
| 76 | case 'O': | |
| 77 | oflag++; | |
| 78 | continue; | |
| 79 | case 'p': | |
| 80 | proflag++; | |
| 81 | continue; | |
| 82 | case 'g': | |
| 83 | gflag++; | |
| 84 | continue; | |
| 85 | case 'w': | |
| 86 | wflag++; | |
| 87 | continue; | |
| 88 | case 'E': | |
| 89 | exflag++; | |
| 90 | case 'P': | |
| 91 | pflag++; | |
| 92 | if (argv[i][1]=='P') | |
| 93 | fprintf(stderr, | |
| 94 | "cc: warning: -P option obsolete; you should use -E instead\n"); | |
| 95 | plist[np++] = argv[i]; | |
| 96 | case 'c': | |
| 97 | cflag++; | |
| 98 | continue; | |
| 99 | case 'D': | |
| 100 | case 'I': | |
| 101 | case 'U': | |
| 102 | case 'C': | |
| 103 | plist[np++] = argv[i]; | |
| 104 | continue; | |
| 105 | case 't': | |
| 106 | if (chpass) | |
| 107 | error("-t overwrites earlier option", 0); | |
| 108 | chpass = argv[i]+2; | |
| 109 | if (chpass[0]==0) | |
| 110 | chpass = "012p"; | |
| 111 | continue; | |
| 112 | case 'B': | |
| 113 | if (npassname) | |
| 114 | error("-B overwrites earlier option", 0); | |
| 115 | npassname = argv[i]+2; | |
| 116 | if (npassname[0]==0) | |
| 117 | npassname = "/usr/c/o"; | |
| 118 | continue; | |
| 119 | case 'd': | |
| 120 | dflag = argv[i]; | |
| 121 | continue; | |
| 122 | } | |
| 123 | t = argv[i]; | |
| 124 | c = getsuf(t); | |
| 125 | if (c=='c' || c=='s' || exflag) { | |
| 126 | clist[nc++] = t; | |
| 127 | t = setsuf(t, 'o'); | |
| 128 | } | |
| 129 | if (nodup(llist, t)) { | |
| 130 | llist[nl++] = t; | |
| 131 | if (getsuf(t)=='o') | |
| 132 | nxo++; | |
| 133 | } | |
| 134 | } | |
| 135 | if (gflag) { | |
| 136 | if (oflag) | |
| 137 | fprintf(stderr, "cc: warning: -g disables -O\n"); | |
| 138 | oflag = 0; | |
| 139 | } | |
| 140 | if (npassname && chpass ==0) | |
| 141 | chpass = "012p"; | |
| 142 | if (chpass && npassname==0) | |
| 143 | npassname = "/usr/c/"; | |
| 144 | if (chpass) | |
| 145 | for (t=chpass; *t; t++) { | |
| 146 | switch (*t) { | |
| 147 | ||
| 148 | case '0': | |
| 149 | ccom = strspl(npassname, "ccom"); | |
| 150 | continue; | |
| 151 | case '2': | |
| 152 | c2 = strspl(npassname, "c2"); | |
| 153 | continue; | |
| 154 | case 'p': | |
| 155 | cpp = strspl(npassname, "cpp"); | |
| 156 | continue; | |
| 157 | } | |
| 158 | } | |
| 159 | if (proflag) | |
| 160 | crt0 = cps8 ? "/usr/lib/8mcrt0.o" : "/usr/new/mcrt0.o"; | |
| 161 | if (nc==0) | |
| 162 | goto nocom; | |
| 163 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) | |
| 164 | signal(SIGINT, idexit); | |
| 165 | if (signal(SIGTERM, SIG_IGN) != SIG_IGN) | |
| 166 | signal(SIGTERM, idexit); | |
| 167 | if (pflag==0) | |
| 168 | sprintf(tmp0, "/tmp/ctm%05.5d", getpid()); | |
| 169 | tmp1 = strspl(tmp0, "1"); | |
| 170 | tmp2 = strspl(tmp0, "2"); | |
| 171 | tmp3 = strspl(tmp0, "3"); | |
| 172 | if (pflag==0) | |
| 173 | tmp4 = strspl(tmp0, "4"); | |
| 174 | if (oflag) | |
| 175 | tmp5 = strspl(tmp0, "5"); | |
| 176 | for (i=0; i<nc; i++) { | |
| 177 | if (nc > 1) { | |
| 178 | printf("%s:\n", clist[i]); | |
| 179 | fflush(stdout); | |
| 180 | } | |
| 181 | if (getsuf(clist[i]) == 's') { | |
| 182 | assource = clist[i]; | |
| 183 | goto assemble; | |
| 184 | } else | |
| 185 | assource = tmp3; | |
| 186 | if (pflag) | |
| 187 | tmp4 = setsuf(clist[i], 'i'); | |
| 188 | av[0] = "cpp"; av[1] = clist[i]; av[2] = exflag ? "-" : tmp4; | |
| 189 | na = 3; | |
| 190 | for (j = 0; j < np; j++) | |
| 191 | av[na++] = plist[j]; | |
| 192 | av[na++] = 0; | |
| 193 | if (callsys(cpp, av)) { | |
| 194 | exfail++; | |
| 195 | eflag++; | |
| 196 | } | |
| 197 | if (pflag || exfail) { | |
| 198 | cflag++; | |
| 199 | continue; | |
| 200 | } | |
| 201 | if (sflag) | |
| 202 | assource = tmp3 = setsuf(clist[i], 's'); | |
| 203 | av[0] = "ccom"; av[1] = tmp4; av[2] = oflag?tmp5:tmp3; na = 3; | |
| 204 | if (proflag) | |
| 205 | av[na++] = "-XP"; | |
| 206 | if (gflag) | |
| 207 | av[na++] = "-Xg"; | |
| 208 | if (wflag) | |
| 209 | av[na++] = "-w"; | |
| 210 | av[na] = 0; | |
| 211 | if (callsys(ccom, av)) { | |
| 212 | cflag++; | |
| 213 | eflag++; | |
| 214 | continue; | |
| 215 | } | |
| 216 | if (oflag) { | |
| 217 | av[0] = "c2"; av[1] = tmp5; av[2] = tmp3; av[3] = 0; | |
| 218 | if (callsys(c2, av)) { | |
| 219 | unlink(tmp3); | |
| 220 | tmp3 = assource = tmp5; | |
| 221 | } else | |
| 222 | unlink(tmp5); | |
| 223 | } | |
| 224 | if (sflag) | |
| 225 | continue; | |
| 226 | assemble: | |
| 227 | cunlink(tmp1); cunlink(tmp2); cunlink(tmp4); | |
| 228 | av[0] = "as"; av[1] = "-o"; av[2] = setsuf(clist[i], 'o'); | |
| 229 | av[3] = assource; na = 4; | |
| 230 | if (dflag) | |
| 231 | av[na++] = dflag; | |
| 232 | av[na] = 0; | |
| 233 | if (callsys(as, av) > 1) { | |
| 234 | cflag++; | |
| 235 | eflag++; | |
| 236 | continue; | |
| 237 | } | |
| 238 | } | |
| 239 | nocom: | |
| 240 | if (cflag==0 && nl!=0) { | |
| 241 | i = 0; | |
| 242 | av[0] = "ld"; av[1] = "-X"; av[2] = crt0; na = 3; | |
| 243 | if (outfile) { | |
| 244 | av[na++] = "-o"; | |
| 245 | av[na++] = outfile; | |
| 246 | } | |
| 247 | while (i < nl) | |
| 248 | av[na++] = llist[i++]; | |
| 249 | if (gflag) | |
| 250 | av[na++] = "-lg"; | |
| 251 | av[na++] = "-lc"; | |
| 252 | av[na++] = 0; | |
| 253 | eflag |= callsys(ld, av); | |
| 254 | if (nc==1 && nxo==1 && eflag==0) | |
| 255 | unlink(setsuf(clist[0], 'o')); | |
| 256 | } | |
| 257 | dexit(); | |
| 258 | } | |
| 259 | ||
| 260 | idexit() | |
| 261 | { | |
| 262 | ||
| 263 | eflag = 100; | |
| 264 | dexit(); | |
| 265 | } | |
| 266 | ||
| 267 | dexit() | |
| 268 | { | |
| 269 | ||
| 270 | if (!pflag) { | |
| 271 | cunlink(tmp1); | |
| 272 | cunlink(tmp2); | |
| 273 | if (sflag==0) | |
| 274 | cunlink(tmp3); | |
| 275 | cunlink(tmp4); | |
| 276 | cunlink(tmp5); | |
| 277 | } | |
| 278 | exit(eflag); | |
| 279 | } | |
| 280 | ||
| 281 | error(s, x) | |
| 282 | char *s, *x; | |
| 283 | { | |
| 284 | FILE *diag = exflag ? stderr : stdout; | |
| 285 | ||
| 286 | fprintf(diag, "cc: "); | |
| 287 | fprintf(diag, s, x); | |
| 288 | putc('\n', diag); | |
| 289 | exfail++; | |
| 290 | cflag++; | |
| 291 | eflag++; | |
| 292 | } | |
| 293 | ||
| 294 | getsuf(as) | |
| 295 | char as[]; | |
| 296 | { | |
| 297 | register int c; | |
| 298 | register char *s; | |
| 299 | register int t; | |
| 300 | ||
| 301 | s = as; | |
| 302 | c = 0; | |
| 303 | while (t = *s++) | |
| 304 | if (t=='/') | |
| 305 | c = 0; | |
| 306 | else | |
| 307 | c++; | |
| 308 | s -= 3; | |
| 309 | if (c <= DIRSIZ && c > 2 && *s++ == '.') | |
| 310 | return (*s); | |
| 311 | return (0); | |
| 312 | } | |
| 313 | ||
| 314 | char * | |
| 315 | setsuf(as, ch) | |
| 316 | char *as; | |
| 317 | { | |
| 318 | register char *s, *s1; | |
| 319 | ||
| 320 | s = s1 = savestr(as); | |
| 321 | while (*s) | |
| 322 | if (*s++ == '/') | |
| 323 | s1 = s; | |
| 324 | s[-1] = ch; | |
| 325 | return (s1); | |
| 326 | } | |
| 327 | ||
| 328 | callsys(f, v) | |
| 329 | char *f, **v; | |
| 330 | { | |
| 331 | int t, status; | |
| 332 | ||
| 333 | t = vfork(); | |
| 334 | if (t == -1) { | |
| 335 | printf("No more processes\n"); | |
| 336 | return (100); | |
| 337 | } | |
| 338 | if (t == 0) { | |
| 339 | execv(f, v); | |
| 340 | printf("Can't find %s\n", f); | |
| 341 | fflush(stdout); | |
| 342 | _exit(100); | |
| 343 | } | |
| 344 | while (t != wait(&status)) | |
| 345 | ; | |
| 346 | if ((t=(status&0377)) != 0 && t!=14) { | |
| 347 | if (t!=2) { | |
| 348 | printf("Fatal error in %s\n", f); | |
| 349 | eflag = 8; | |
| 350 | } | |
| 351 | dexit(); | |
| 352 | } | |
| 353 | return ((status>>8) & 0377); | |
| 354 | } | |
| 355 | ||
| 356 | nodup(l, os) | |
| 357 | char **l, *os; | |
| 358 | { | |
| 359 | register char *t, *s; | |
| 360 | register int c; | |
| 361 | ||
| 362 | s = os; | |
| 363 | if (getsuf(s) != 'o') | |
| 364 | return (1); | |
| 365 | while (t = *l++) { | |
| 366 | while (c = *s++) | |
| 367 | if (c != *t++) | |
| 368 | break; | |
| 369 | if (*t==0 && c==0) | |
| 370 | return (0); | |
| 371 | s = os; | |
| 372 | } | |
| 373 | return (1); | |
| 374 | } | |
| 375 | ||
| 376 | #define NSAVETAB 1024 | |
| 377 | char *savetab; | |
| 378 | int saveleft; | |
| 379 | ||
| 380 | char * | |
| 381 | savestr(cp) | |
| 382 | register char *cp; | |
| 383 | { | |
| 384 | register int len; | |
| 385 | ||
| 386 | len = strlen(cp) + 1; | |
| 387 | if (len > saveleft) { | |
| 388 | saveleft = NSAVETAB; | |
| 389 | if (len > saveleft) | |
| 390 | saveleft = len; | |
| 391 | savetab = (char *)malloc(saveleft); | |
| 392 | if (savetab == 0) { | |
| 393 | fprintf(stderr, "ran out of memory (savestr)\n"); | |
| 394 | exit(1); | |
| 395 | } | |
| 396 | } | |
| 397 | strncpy(savetab, cp, len); | |
| 398 | cp = savetab; | |
| 399 | savetab += len; | |
| 400 | saveleft -= len; | |
| 401 | return (cp); | |
| 402 | } | |
| 403 | ||
| 404 | char * | |
| 405 | strspl(left, right) | |
| 406 | char *left, *right; | |
| 407 | { | |
| 408 | char buf[BUFSIZ]; | |
| 409 | ||
| 410 | strcpy(buf, left); | |
| 411 | strcat(buf, right); | |
| 412 | return (savestr(buf)); | |
| 413 | } |