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freebsd/usr.sbin/kernbb/kernbb.c
Tim J. Robbins b71e13d373 Fix the type of struct bbf's arc_count member: according to gcc's
definition of struct bb_function_info in libgcc2.c, it should be
an int, not a long.
2004-05-29 01:22:53 +00:00

146 lines
2.9 KiB
C

/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <err.h>
#include <fcntl.h>
#include <kvm.h>
#include <nlist.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/endian.h>
typedef long long gcov_type;
#define PARAMS(foo) foo
#define ATTRIBUTE_UNUSED __unused
#include "gcov-io.h"
struct bbf {
long checksum;
int arc_count;
u_long name;
};
struct bb {
u_long zero_one;
u_long filename;
u_long counts;
u_long ncounts;
u_long next;
u_long sizeof_bb;
u_long funcs;
};
struct nlist namelist[] = {
{ "bbhead", 0, 0, 0, 0 },
{ NULL, 0, 0, 0, 0 }
};
kvm_t *kv;
int
main(int argc __unused, char **argv __unused)
{
int i, funcs;
u_long l1,l2,l4;
struct bb bb;
struct bbf bbf;
char buf[BUFSIZ], *p;
gcov_type *q, *qr;
FILE *f;
kv = kvm_open(NULL,NULL,NULL,O_RDWR,"dnc");
if (!kv)
err(1,"kvm_open");
i = kvm_nlist(kv,namelist);
if (i)
err(1,"kvm_nlist");
l1 = namelist[0].n_value;
kvm_read(kv,l1,&l2,sizeof l2);
while(l2) {
l1 += sizeof l1;
kvm_read(kv,l2,&bb,sizeof bb);
#if 0
printf("%lx\n%lx\n%lx\n%lx\n%lx\n%lx\n%lx\n",
bb.zero_one, bb.filename, bb.counts, bb.ncounts, bb.next,
bb.sizeof_bb, bb.funcs);
#endif
funcs = 0;
for (l4 = bb.funcs; ; l4 += sizeof (bbf)) {
kvm_read(kv, l4, &bbf, sizeof(bbf));
if (bbf.arc_count == -1)
break;
funcs++;
}
l2 = bb.next;
kvm_read(kv, bb.filename, buf, sizeof(buf));
p = buf;
f = fopen(p, "w");
if (f != NULL) {
printf("Writing \"%s\"\n", p);
} else {
p = strrchr(buf, '/');
if (p == NULL)
p = buf;
else
p++;
printf("Writing \"%s\" (spec \"%s\")\n", p, buf);
f = fopen(p, "w");
}
if (f == NULL)
err(1,"%s", p);
__write_long(-123, f, 4);
__write_long(funcs, f, 4);
__write_long(4 + 8 + 8 + 4 + 8 + 8, f, 4);
__write_long(bb.ncounts, f, 4);
__write_long(0, f, 8);
__write_long(0, f, 8);
__write_long(bb.ncounts, f, 4);
__write_long(0, f, 8);
__write_long(0, f, 8);
qr = malloc(bb.ncounts * 8);
kvm_read(kv, bb.counts, qr, bb.ncounts * 8);
q = qr;
for (l4 = bb.funcs; ; l4 += sizeof (bbf)) {
kvm_read(kv, l4, &bbf, sizeof(bbf));
if (bbf.arc_count == -1)
break;
kvm_read(kv, bbf.name, buf, sizeof(buf));
__write_gcov_string(buf, strlen(buf), f, -1);
__write_long(bbf.checksum, f, 4);
__write_long(bbf.arc_count, f, 4);
for (i = 0; i < bbf.arc_count; i++) {
__write_gcov_type(*q, f, 8);
q++;
}
}
fclose(f);
free(qr);
}
return 0;
}