Index: stable/11/usr.bin/ktrdump/ktrdump.c =================================================================== --- stable/11/usr.bin/ktrdump/ktrdump.c (revision 323862) +++ stable/11/usr.bin/ktrdump/ktrdump.c (revision 323863) @@ -1,321 +1,326 @@ /*- * Copyright (c) 2002 Jake Burkholder * Copyright (c) 2004 Robert Watson * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define SBUFLEN 128 #define USAGE \ "usage: ktrdump [-cfqrtH] [-i ktrfile] [-M core] [-N system] [-o outfile]\n" static void usage(void); static struct nlist nl[] = { { "_ktr_version" }, { "_ktr_entries" }, { "_ktr_idx" }, { "_ktr_buf" }, { NULL } }; static int cflag; static int fflag; static int Mflag; static int Nflag; static int qflag; static int rflag; static int tflag; static int iflag; static int hflag; static char corefile[PATH_MAX]; static char execfile[PATH_MAX]; static char desc[SBUFLEN]; static char errbuf[_POSIX2_LINE_MAX]; static char fbuf[PATH_MAX]; static char obuf[PATH_MAX]; static char sbuf[KTR_PARMS][SBUFLEN]; /* * Reads the ktr trace buffer from kernel memory and prints the trace entries. */ int main(int ac, char **av) { u_long parms[KTR_PARMS]; struct ktr_entry *buf; uintmax_t tlast, tnow; unsigned long bufptr; struct stat sb; kvm_t *kd; FILE *out; char *p; int version; int entries; + int count; int index, index2; int parm; int in; int c; int i = 0; /* * Parse commandline arguments. */ out = stdout; while ((c = getopt(ac, av, "cfqrtHe:i:m:M:N:o:")) != -1) switch (c) { case 'c': cflag = 1; break; case 'N': case 'e': if (strlcpy(execfile, optarg, sizeof(execfile)) >= sizeof(execfile)) errx(1, "%s: File name too long", optarg); Nflag = 1; break; case 'f': fflag = 1; break; case 'i': iflag = 1; if ((in = open(optarg, O_RDONLY)) == -1) err(1, "%s", optarg); break; case 'M': case 'm': if (strlcpy(corefile, optarg, sizeof(corefile)) >= sizeof(corefile)) errx(1, "%s: File name too long", optarg); Mflag = 1; break; case 'o': if ((out = fopen(optarg, "w")) == NULL) err(1, "%s", optarg); break; case 'q': qflag++; break; case 'r': rflag = 1; break; case 't': tflag = 1; break; case 'H': hflag = 1; break; case '?': default: usage(); } ac -= optind; av += optind; if (ac != 0) usage(); /* * Open our execfile and corefile, resolve needed symbols and read in * the trace buffer. */ if ((kd = kvm_openfiles(Nflag ? execfile : NULL, Mflag ? corefile : NULL, NULL, O_RDONLY, errbuf)) == NULL) errx(1, "%s", errbuf); - if (kvm_nlist(kd, nl) != 0 || - kvm_read(kd, nl[0].n_value, &version, sizeof(version)) == -1) + count = kvm_nlist(kd, nl); + if (count == -1) + errx(1, "%s", kvm_geterr(kd)); + if (count > 0) + errx(1, "failed to resolve ktr symbols"); + if (kvm_read(kd, nl[0].n_value, &version, sizeof(version)) == -1) errx(1, "%s", kvm_geterr(kd)); if (version != KTR_VERSION) errx(1, "ktr version mismatch"); if (iflag) { if (fstat(in, &sb) == -1) errx(1, "stat"); entries = sb.st_size / sizeof(*buf); index = 0; buf = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, in, 0); if (buf == MAP_FAILED) errx(1, "mmap"); } else { if (kvm_read(kd, nl[1].n_value, &entries, sizeof(entries)) == -1) errx(1, "%s", kvm_geterr(kd)); if ((buf = malloc(sizeof(*buf) * entries)) == NULL) err(1, NULL); if (kvm_read(kd, nl[2].n_value, &index, sizeof(index)) == -1 || kvm_read(kd, nl[3].n_value, &bufptr, sizeof(bufptr)) == -1 || kvm_read(kd, bufptr, buf, sizeof(*buf) * entries) == -1 || kvm_read(kd, nl[2].n_value, &index2, sizeof(index2)) == -1) errx(1, "%s", kvm_geterr(kd)); } /* * Print a nice header. */ if (!qflag) { fprintf(out, "%-6s ", "index"); if (cflag) fprintf(out, "%-3s ", "cpu"); if (tflag) fprintf(out, "%-16s ", "timestamp"); if (fflag) fprintf(out, "%-40s ", "file and line"); if (hflag) fprintf(out, "%-18s ", "tid"); fprintf(out, "%s", "trace"); fprintf(out, "\n"); fprintf(out, "------ "); if (cflag) fprintf(out, "--- "); if (tflag) fprintf(out, "---------------- "); if (fflag) fprintf(out, "---------------------------------------- "); if (hflag) fprintf(out, "------------------ "); fprintf(out, "----- "); fprintf(out, "\n"); } /* * Now tear through the trace buffer. */ if (!iflag) { i = index - 1; if (i < 0) i = entries - 1; } tlast = -1; for (;;) { if (buf[i].ktr_desc == NULL) break; if (kvm_read(kd, (u_long)buf[i].ktr_desc, desc, sizeof(desc)) == -1) errx(1, "%s", kvm_geterr(kd)); desc[sizeof(desc) - 1] = '\0'; parm = 0; for (p = desc; (c = *p++) != '\0';) { if (c != '%') continue; next: if ((c = *p++) == '\0') break; if (parm == KTR_PARMS) errx(1, "too many parameters in \"%s\"", desc); switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case '#': case '-': case ' ': case '+': case '\'': case 'h': case 'l': case 'j': case 't': case 'z': case 'q': case 'L': case '.': goto next; case 's': if (kvm_read(kd, (u_long)buf[i].ktr_parms[parm], sbuf[parm], sizeof(sbuf[parm])) == -1) strcpy(sbuf[parm], "(null)"); sbuf[parm][sizeof(sbuf[0]) - 1] = '\0'; parms[parm] = (u_long)sbuf[parm]; parm++; break; default: parms[parm] = buf[i].ktr_parms[parm]; parm++; break; } } fprintf(out, "%6d ", i); if (cflag) fprintf(out, "%3d ", buf[i].ktr_cpu); if (tflag) { tnow = (uintmax_t)buf[i].ktr_timestamp; if (rflag) { if (tlast == -1) tlast = tnow; fprintf(out, "%16ju ", !iflag ? tlast - tnow : tnow - tlast); tlast = tnow; } else fprintf(out, "%16ju ", tnow); } if (fflag) { if (kvm_read(kd, (u_long)buf[i].ktr_file, fbuf, sizeof(fbuf)) == -1) strcpy(fbuf, "(null)"); snprintf(obuf, sizeof(obuf), "%s:%d", fbuf, buf[i].ktr_line); fprintf(out, "%-40s ", obuf); } if (hflag) fprintf(out, "%p ", buf[i].ktr_thread); fprintf(out, desc, parms[0], parms[1], parms[2], parms[3], parms[4], parms[5]); fprintf(out, "\n"); if (!iflag) { /* * 'index' and 'index2' are the values of 'ktr_idx' * before and after the KTR buffer was copied into * 'buf'. Since the KTR entries between 'index' and * 'index2' were in flux while the KTR buffer was * being copied to userspace we don't dump them. */ if (i == index2) break; if (--i < 0) i = entries - 1; } else { if (++i == entries) break; } } return (0); } static void usage(void) { fprintf(stderr, USAGE); exit(1); } Index: stable/11 =================================================================== --- stable/11 (revision 323862) +++ stable/11 (revision 323863) Property changes on: stable/11 ___________________________________________________________________ Modified: svn:mergeinfo ## -0,0 +0,1 ## Merged /head:r323439