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Diffstat (limited to 'usr.sbin/asf/asf_kvm.c')
-rw-r--r--usr.sbin/asf/asf_kvm.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/usr.sbin/asf/asf_kvm.c b/usr.sbin/asf/asf_kvm.c
deleted file mode 100644
index ba1558d80e7f..000000000000
--- a/usr.sbin/asf/asf_kvm.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2006 The FreeBSD Project
- * 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 <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/queue.h> /* for <sys/linker.h> with _KERNEL defined */
-#include <err.h>
-#include <fcntl.h>
-#include <kvm.h>
-#include <limits.h>
-#include <nlist.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define _KERNEL
-#include <sys/linker.h>
-#undef _KERNEL
-
-#include "asf.h"
-
-/* Name of the head of the linker file list in /sys/kern/kern_linker.c */
-#define LINKER_HEAD "linker_files"
-
-/*
- * Get the list of linker files using kvm(3).
- * Can work with a live kernel as well as with a crash dump.
- */
-void
-asf_kvm(const char *kernfile, const char *corefile)
-{
- char errbuf[LINE_MAX];
- char name[PATH_MAX];
- kvm_t *kd;
- struct nlist nl[2];
- struct linker_file lf;
- linker_file_list_t linker_files;
- ssize_t n;
- void *kp;
-
- kd = kvm_openfiles(kernfile, corefile, NULL, O_RDONLY, errbuf);
- if (kd == NULL)
- errx(2, "open kernel memory: %s", errbuf);
-
- /*
- * Locate the head of the linker file list using kernel symbols.
- */
- strcpy(name, LINKER_HEAD);
- nl[0].n_name = name; /* can't use LINKER_HEAD here because it's const */
- nl[1].n_name = NULL; /* terminate the array for kvm_nlist() */
- switch (kvm_nlist(kd, nl)) {
- case 0:
- break;
- case -1:
- warnx("%s: %s", LINKER_HEAD, kvm_geterr(kd));
- kvm_close(kd);
- exit(2);
- default:
- kvm_close(kd);
- errx(2, "%s: symbol not found", LINKER_HEAD);
- }
-
- /*
- * Read the head of the linker file list from kernel memory.
- */
- n = kvm_read(kd, nl[0].n_value, &linker_files, sizeof(linker_files));
- if (n == -1)
- goto read_err;
- if (n != sizeof(linker_files)) {
- kvm_close(kd);
- errx(2, "%s: short read", LINKER_HEAD);
- }
-
- /*
- * Traverse the linker file list starting at its head.
- */
- for (kp = linker_files.tqh_first; kp; kp = lf.link.tqe_next) {
- /* Read a linker file structure */
- n = kvm_read(kd, (u_long)kp, &lf, sizeof(lf));
- if (n == -1)
- goto read_err;
- if (n != sizeof(lf)) {
- kvm_close(kd);
- errx(2, "kvm: short read");
- }
- /* Read the name of the file stored separately */
- bzero(name, sizeof(name));
- n = kvm_read(kd, (u_long)lf.filename, name, sizeof(name) - 1);
- if (n == -1)
- goto read_err;
- if (strcmp(name, KERNFILE) == 0)
- continue;
- /* Add this file to our list of linker files */
- kfile_add(name, lf.address);
- }
- kvm_close(kd);
- return;
-
-read_err: /* A common error case */
- warnx("read kernel memory: %s", kvm_geterr(kd));
- kvm_close(kd);
- exit(2);
-}