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- Add the -i option to read in a saved ktr file output by KTR_ALQ.

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This commit is contained in:
Jeff Roberson 2002-09-22 07:21:28 +00:00
parent 5bf6b6538e
commit cba1f1e079
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=103791
1 changed files with 41 additions and 13 deletions
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54
usr.bin/ktrdump/ktrdump.c
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@ -29,6 +29,8 @@ __FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/ktr.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <err.h>
#include <fcntl.h>
@ -43,7 +45,7 @@ __FBSDID("$FreeBSD$");
#define SBUFLEN 128
#define USAGE \
"usage: ktrdump [-c] [-f] [-t] [-e execfile] [-m corefile] [-o outfile]"
"usage: ktrdump [-c] [-f] [-t] [-e execfile] [-i ktrfile ] [-m corefile] [-o outfile]"
extern char *optarg;
extern int optind;
@ -63,6 +65,7 @@ static int eflag;
static int fflag;
static int mflag;
static int tflag;
static int iflag;
static char corefile[PATH_MAX];
static char execfile[PATH_MAX];
@ -81,6 +84,7 @@ main(int ac, char **av)
{
u_long parms[KTR_PARMS];
struct ktr_entry *buf;
struct stat sb;
kvm_t *kd;
FILE *out;
char *p;
@ -88,6 +92,7 @@ main(int ac, char **av)
int entries;
int index;
int parm;
int in;
int c;
int i;
int n;
@ -96,7 +101,7 @@ main(int ac, char **av)
* Parse commandline arguments.
*/
out = stdout;
while ((c = getopt(ac, av, "cfte:m:o:")) != -1)
while ((c = getopt(ac, av, "cfte:i:m:o:")) != -1)
switch (c) {
case 'c':
cflag = 1;
@ -108,6 +113,11 @@ main(int ac, char **av)
case 'f':
fflag = 1;
break;
case 'i':
iflag = 1;
if ((in = open(optarg, O_RDONLY)) == -1)
err(1, "%s", optarg);
break;
case 'm':
strcpy(corefile, optarg);
mflag = 1;
@ -140,13 +150,25 @@ main(int ac, char **av)
errx(1, "%s", kvm_geterr(kd));
if (version != KTR_VERSION)
errx(1, "ktr version mismatch");
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, buf, sizeof(*buf) * entries) == -1)
errx(1, "%s", kvm_geterr(kd));
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, buf, sizeof(*buf) * entries)
== -1)
errx(1, "%s", kvm_geterr(kd));
}
/*
* Print a nice header.
@ -174,7 +196,8 @@ main(int ac, char **av)
/*
* Now tear through the trace buffer.
*/
i = (index - 1) & (entries - 1);
if (!iflag)
i = (index - 1) & (entries - 1);
for (;;) {
if (buf[i].ktr_desc == NULL)
break;
@ -222,9 +245,14 @@ main(int ac, char **av)
fprintf(out, desc, parms[0], parms[1], parms[2], parms[3],
parms[4], parms[5]);
fprintf(out, "\n");
if (i == index)
break;
i = (i - 1) & (entries - 1);
if (!iflag) {
if (i == index)
break;
i = (i - 1) & (entries - 1);
} else {
if (++i == entries)
break;
}
}
return (0);