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1.1 ! root 1: /*- ! 2: * Copyright (c) 1988 The Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution and use in source and binary forms are permitted provided ! 6: * that: (1) source distributions retain this entire copyright notice and ! 7: * comment, and (2) distributions including binaries display the following ! 8: * acknowledgement: ``This product includes software developed by the ! 9: * University of California, Berkeley and its contributors'' in the ! 10: * documentation or other materials provided with the distribution and in ! 11: * all advertising materials mentioning features or use of this software. ! 12: * Neither the name of the University nor the names of its contributors may ! 13: * be used to endorse or promote products derived from this software without ! 14: * specific prior written permission. ! 15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED ! 16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF ! 17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 18: */ ! 19: ! 20: #ifndef lint ! 21: char copyright[] = ! 22: "@(#) Copyright (c) 1988 The Regents of the University of California.\n\ ! 23: All rights reserved.\n"; ! 24: #endif /* not lint */ ! 25: ! 26: #ifndef lint ! 27: static char sccsid[] = "@(#)kdump.c 1.9 (Berkeley) 6/29/90"; ! 28: #endif /* not lint */ ! 29: ! 30: #include <sys/ioctl.h> ! 31: #include <vis.h> ! 32: #define KERNEL ! 33: #include <errno.h> ! 34: #undef KERNEL ! 35: #include "ktrace.h" ! 36: ! 37: int timestamp, decimal, fancy = 1, tail, maxdata; ! 38: char *tracefile = DEF_TRACEFILE; ! 39: struct ktr_header ktr_header; ! 40: int size = 1024; /* initial size - grow as needed */ ! 41: ! 42: #define USAGE \ ! 43: "usage: kdump [-dnlT] [-t trops] [-f trfile] [-m maxdata]\n\ ! 44: trops: c = syscalls, n = namei, g = generic-i/o, a = everything\n" ! 45: ! 46: #define eqs(s1, s2) (strcmp((s1), (s2)) == 0) ! 47: ! 48: main(argc, argv) ! 49: char *argv[]; ! 50: { ! 51: extern int optind; ! 52: extern char *optarg; ! 53: int ch, ktrlen; ! 54: register char *m; ! 55: int trpoints = ALL_POINTS; ! 56: ! 57: while ((ch = getopt(argc,argv,"t:f:dnlTRm:")) != EOF) ! 58: switch((char)ch) { ! 59: case 't': ! 60: trpoints = getpoints(optarg); ! 61: if (trpoints < 0) { ! 62: fprintf(stderr, ! 63: "kdump: unknown trace point in %s\n", ! 64: optarg); ! 65: exit(1); ! 66: } ! 67: break; ! 68: case 'f': ! 69: tracefile = optarg; ! 70: break; ! 71: case 'd': ! 72: decimal = 1; ! 73: break; ! 74: case 'n': ! 75: fancy = 0; ! 76: break; ! 77: case 'l': ! 78: tail = 1; ! 79: break; ! 80: case 'T': ! 81: timestamp = 1; ! 82: break; ! 83: case 'R': ! 84: timestamp = 2; /* relative timestamp */ ! 85: break; ! 86: case 'm': ! 87: maxdata = atoi(optarg); ! 88: break; ! 89: default: ! 90: fprintf(stderr, USAGE); ! 91: exit(1); ! 92: } ! 93: argv += optind, argc -= optind; ! 94: ! 95: if (argc > 1) { ! 96: fprintf(stderr, USAGE); ! 97: exit(1); ! 98: } ! 99: if (!eqs(tracefile, "-")) { ! 100: if (freopen(tracefile, "r", stdin) == NULL) { ! 101: fprintf(stderr, "kdump: %s: ", tracefile); ! 102: perror(""); ! 103: exit(1); ! 104: } ! 105: } ! 106: m = (char *)malloc(size+1); ! 107: if (m == NULL) { ! 108: fprintf(stderr, "kdump: ain't gots no memory\n"); ! 109: exit(1); ! 110: } ! 111: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1, ! 112: stdin, tail)) { ! 113: if (trpoints & (1<<ktr_header.ktr_type)) ! 114: dumpheader(&ktr_header); ! 115: if ((ktrlen = ktr_header.ktr_len) < 0) { ! 116: fprintf(stderr, "kdump: bogus length 0x%x\n", ! 117: ktrlen); ! 118: exit(1); ! 119: } ! 120: if (ktrlen > size) { ! 121: m = (char *)realloc(m, ktrlen+1); ! 122: if (m == NULL) { ! 123: fprintf(stderr,"kdump: out of memory\n"); ! 124: exit(1); ! 125: } ! 126: size = ktrlen; ! 127: } ! 128: if (ktrlen && fread_tail(m, ktrlen, 1, stdin, tail) == 0) { ! 129: fprintf(stderr, "kdump: data too short\n"); ! 130: exit(1); ! 131: } ! 132: if ((trpoints & (1<<ktr_header.ktr_type)) == 0) ! 133: continue; ! 134: switch (ktr_header.ktr_type) { ! 135: case KTR_SYSCALL: ! 136: ktrsyscall((struct ktr_syscall *)m, ktrlen); ! 137: break; ! 138: case KTR_SYSRET: ! 139: ktrsysret((struct ktr_sysret *)m, ktrlen); ! 140: break; ! 141: case KTR_NAMEI: ! 142: ktrnamei(m, ktrlen); ! 143: break; ! 144: case KTR_GENIO: ! 145: ktrgenio((struct ktr_genio *)m, ktrlen); ! 146: break; ! 147: case KTR_PSIG: ! 148: ktrpsig((struct ktr_psig *)m, ktrlen); ! 149: break; ! 150: } ! 151: if (tail) ! 152: fflush(stdout); ! 153: } ! 154: } ! 155: ! 156: fread_tail(buf, size, num, stream, tail) ! 157: char *buf; ! 158: FILE *stream; ! 159: { ! 160: int i; ! 161: ! 162: while ((i = fread(buf, size, num, stream)) == 0 && tail) { ! 163: sleep(1); ! 164: clearerr(stream); ! 165: } ! 166: return (i); ! 167: } ! 168: ! 169: dumpheader(kth) ! 170: struct ktr_header *kth; ! 171: { ! 172: static char unknown[64]; ! 173: static struct timeval prevtime, temp; ! 174: char *type; ! 175: ! 176: switch (kth->ktr_type) { ! 177: case KTR_SYSCALL: ! 178: type = "CALL"; ! 179: break; ! 180: case KTR_SYSRET: ! 181: type = "RET "; ! 182: break; ! 183: case KTR_NAMEI: ! 184: type = "NAMI"; ! 185: break; ! 186: case KTR_GENIO: ! 187: type = "GIO "; ! 188: break; ! 189: case KTR_PSIG: ! 190: type = "PSIG"; ! 191: break; ! 192: default: ! 193: sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type); ! 194: type = unknown; ! 195: } ! 196: ! 197: printf("%6d %-8s ", ! 198: kth->ktr_pid, kth->ktr_comm); ! 199: if (timestamp) { ! 200: if (timestamp == 2) { ! 201: temp = kth->ktr_time; ! 202: timevalsub(&kth->ktr_time, &prevtime); ! 203: prevtime = temp; ! 204: } ! 205: printf("%d.%06d ", kth->ktr_time.tv_sec, kth->ktr_time.tv_usec); ! 206: } ! 207: printf("%s ", type); ! 208: } ! 209: ! 210: #include <sys/syscall.h> ! 211: #define KTRACE ! 212: #include "/sys/kern/syscalls.c" ! 213: #undef KTRACE ! 214: int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]); ! 215: ! 216: ktrsyscall(ktr, len) ! 217: register struct ktr_syscall *ktr; ! 218: { ! 219: register narg = ktr->ktr_narg; ! 220: register int *ip; ! 221: char *ioctlname(); ! 222: ! 223: if (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0) ! 224: printf("[%d]", ktr->ktr_code); ! 225: else ! 226: printf("%s", syscallnames[ktr->ktr_code]); ! 227: ip = (int *)((char *)ktr + sizeof(struct ktr_syscall)); ! 228: if (narg) { ! 229: char c = '('; ! 230: if (fancy && ktr->ktr_code == SYS_ioctl) { ! 231: char *cp; ! 232: if (decimal) ! 233: printf("(%d", *ip); ! 234: else ! 235: printf("(%#x", *ip); ! 236: ip++; narg--; ! 237: if ((cp = ioctlname(*ip)) != NULL) ! 238: printf(",%s", cp); ! 239: else { ! 240: if (decimal) ! 241: printf(",%d", *ip); ! 242: else ! 243: printf(",%#x ", *ip); ! 244: } ! 245: c = ','; ! 246: ip++; narg--; ! 247: } ! 248: while (narg) { ! 249: if (decimal) ! 250: printf("%c%d", c, *ip); ! 251: else ! 252: printf("%c%#x", c, *ip); ! 253: c = ','; ! 254: ip++; narg--; ! 255: } ! 256: putchar(')'); ! 257: } ! 258: putchar('\n'); ! 259: } ! 260: ! 261: ktrsysret(ktr, len) ! 262: struct ktr_sysret *ktr; ! 263: { ! 264: register int ret = ktr->ktr_retval; ! 265: register int error = ktr->ktr_error; ! 266: register int code = ktr->ktr_code; ! 267: ! 268: if (code >= nsyscalls || code < 0) ! 269: printf("[%d] ", code); ! 270: else ! 271: printf("%s ", syscallnames[code]); ! 272: ! 273: if (error == 0) { ! 274: if (fancy) { ! 275: printf("%d", ret); ! 276: if (ret < 0 || ret > 9) ! 277: printf("/%#x", ret); ! 278: } else { ! 279: if (decimal) ! 280: printf("%d", ret); ! 281: else ! 282: printf("%#x", ret); ! 283: } ! 284: } else if (error == ERESTART) ! 285: printf("RESTART"); ! 286: else if (error == EJUSTRETURN) ! 287: printf("JUSTRETURN"); ! 288: else { ! 289: printf("-1 errno %d", ktr->ktr_error); ! 290: if (fancy) ! 291: printf(" %s", strerror(ktr->ktr_error)); ! 292: } ! 293: putchar('\n'); ! 294: } ! 295: ! 296: ktrnamei(cp, len) ! 297: char *cp; ! 298: { ! 299: printf("\"%.*s\"\n", len, cp); ! 300: } ! 301: ! 302: ktrgenio(ktr, len) ! 303: struct ktr_genio *ktr; ! 304: { ! 305: register int datalen = len - sizeof (struct ktr_genio); ! 306: register char *dp = (char *)ktr + sizeof (struct ktr_genio); ! 307: register char *cp; ! 308: register int col = 0; ! 309: register char c; ! 310: register width; ! 311: char visbuf[5]; ! 312: static screenwidth = 0; ! 313: ! 314: if (screenwidth == 0) { ! 315: struct winsize ws; ! 316: ! 317: if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 && ! 318: ws.ws_col > 8) ! 319: screenwidth = ws.ws_col; ! 320: else ! 321: screenwidth = 80; ! 322: } ! 323: printf("fd %d %s %d bytes\n", ktr->ktr_fd, ! 324: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen); ! 325: if (maxdata && datalen > maxdata) ! 326: datalen = maxdata; ! 327: printf(" \""); ! 328: col = 8; ! 329: for (;datalen > 0; datalen--, dp++) { ! 330: (void) vis(visbuf, *dp, VIS_CSTYLE, *(dp+1)); ! 331: cp = visbuf; ! 332: /* ! 333: * Keep track of printables and ! 334: * space chars (like fold(1)). ! 335: */ ! 336: if (col == 0) { ! 337: putchar('\t'); ! 338: col = 8; ! 339: } ! 340: switch(*cp) { ! 341: case '\n': ! 342: col = 0; ! 343: putchar('\n'); ! 344: continue; ! 345: case '\t': ! 346: width = 8 - (col&07); ! 347: break; ! 348: default: ! 349: width = strlen(cp); ! 350: } ! 351: if (col + width > (screenwidth-2)) { ! 352: printf("\\\n\t"); ! 353: col = 8; ! 354: } ! 355: col += width; ! 356: do { ! 357: putchar(*cp++); ! 358: } while (*cp); ! 359: } ! 360: if (col == 0) ! 361: printf(" "); ! 362: printf("\"\n"); ! 363: } ! 364: ! 365: ! 366: char *signames[] = { ! 367: "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */ ! 368: "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */ ! 369: "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */ ! 370: "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */ ! 371: "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */ ! 372: "USR2", NULL, /* 31 - 32 */ ! 373: }; ! 374: ! 375: ktrpsig(psig, len) ! 376: struct ktr_psig *psig; ! 377: { ! 378: printf("SIG%s ", signames[psig->signo]); ! 379: if (psig->action == SIG_DFL) ! 380: printf("SIG_DFL\n"); ! 381: else { ! 382: printf("caught handler=0x%x mask=0x%x code=0x%x\n", ! 383: psig->action, psig->mask, psig->code); ! 384: } ! 385: }
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