d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Record num_eisa_slots if it could be found in the kernel.

Browse Source
This commit is contained in:
Joerg Wunsch 1997-03-12 18:54:52 +00:00
parent 051fc6fab1
commit d048f017ad
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=23807
1 changed files with 41 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
sbin/dset/dset.c
View File

@ -53,6 +53,11 @@ struct nlist nlk[] = {
"",
};
struct nlist nlaux[] = {
{"_num_eisa_slots"},
{""},
};
int quiet = FALSE;
void
@ -90,7 +95,7 @@ main(ac, av)
int ac;
char **av;
{
int f, res, s;
int f, res, s, i;
int modified,dev_found;
int sym;
u_long pos, entry, pos1, pos_t;
@ -297,6 +302,41 @@ main(ac, av)
} while (buf.id_id != 0 && buf1.id_id != 0);
}
if (kvm_nlist(kd, nlaux) != 0) {
/* num_eisa_conf need not exist, only handle it if found */
if (verbose)
printf("num_eisa_slots not found, ignoring.\n");
} else {
if (nlaux[0].n_type == 0)
fatal("kvm_nlist", "bad symbol type");
pos1 = nlaux[0].n_value;
if (kvm_read(kd, pos1, &s, sizeof(int)) < 0)
fatal("kvmread", NULL);
if (nlist(kernel, nlaux) != 0)
fatal("nlist", NULL);
if (nlaux[0].n_type == 0)
fatal("nlist", "bad symbol type");
pos = nlaux[0].n_value + getpagesize() - entry;
if (lseek(f, pos, SEEK_SET) != pos)
fatal("seek", NULL);
if ((res = read(f, (char *) &i, sizeof(int)))
<= 0)
fatal("read", NULL);
if (i != s) {
if (verbose)
printf("\nChanging num_eisa_slots from %d to %d.\n",
i, s);
if (!testonly) {
res = lseek(f, -(off_t) sizeof(int),
SEEK_CUR);
if (write(f, &s, sizeof(int)) <= 0)
fatal("write", NULL);
}
}
}
if (chflags(kernel, flags) < 0)
fatal("chflags restore", NULL);