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Remove obsolete asf(8)

Browse Source 
kgdb now handles kernel module state internally, so the asf tool serves
no purpose.

PR:		229046
Reviewed by:	brooks
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D15827
This commit is contained in:
emaste 2018-06-15 17:44:21 +00:00
parent a1f442c146
commit f4adbc25a7
12 changed files with 3 additions and 957 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
ObsoleteFiles.inc
View File

@ -38,6 +38,9 @@
# xargs -n1 | sort | uniq -d;
# done
# 20180615: asf(8) removed
OLD_FILES+=usr/bin/asf
OLD_FILES+=usr/share/man/man8/asf.8.gz
# 20180609: obsolete libc++ files missed from the 5.0.0 import
OLD_FILES+=usr/include/c++/v1/__refstring
OLD_FILES+=usr/include/c++/v1/__undef_min_max

2
targets/pseudo/userland/Makefile.depend
View File

@ -810,7 +810,6 @@ DIRDEPS.amd64= \
usr.sbin/acpi/acpidump \
usr.sbin/acpi/iasl \
usr.sbin/apm \
usr.sbin/asf \
usr.sbin/bhyve \
usr.sbin/bhyvectl \
usr.sbin/bhyveload \
@ -842,7 +841,6 @@ DIRDEPS.i386= \
sbin/sconfig \
usr.sbin/apm \
usr.sbin/apmd \
usr.sbin/asf \
usr.sbin/btxld \
usr.sbin/cpucontrol \
usr.sbin/hyperv/tools \

1
usr.sbin/Makefile.amd64
View File

@ -9,7 +9,6 @@ SUBDIR+= acpi
.if ${MK_APM} != "no"
SUBDIR+= apm
.endif
SUBDIR+= asf
.if ${MK_BHYVE} != "no"
SUBDIR+= bhyve
SUBDIR+= bhyvectl

1
usr.sbin/Makefile.i386
View File

@ -7,7 +7,6 @@ SUBDIR+= acpi
SUBDIR+= apm
SUBDIR+= apmd
.endif
SUBDIR+= asf
SUBDIR+= boot0cfg
.if ${MK_TOOLCHAIN} != "no"
SUBDIR+= btxld

9
usr.sbin/asf/Makefile
View File

@ -1,9 +0,0 @@
# $FreeBSD$
PROG= asf
SRCS= asf.c asf_kld.c asf_kvm.c asf_prog.c
MAN= asf.8
LIBADD= kvm
.include <bsd.prog.mk>

19
usr.sbin/asf/Makefile.depend
View File

@ -1,19 +0,0 @@
# $FreeBSD$
# Autogenerated - do NOT edit!
DIRDEPS = \
gnu/lib/csu \
include \
include/xlocale \
lib/${CSU_DIR} \
lib/libc \
lib/libcompiler_rt \
lib/libelf \
lib/libkvm \
.include <dirdeps.mk>
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
# local dependencies - needed for -jN in clean tree
.endif

188
usr.sbin/asf/asf.8
View File

@ -1,188 +0,0 @@
.\" Copyright (c) 2003 Greg Lehey. 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 Greg Lehey ``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 Greg Lehey 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.
.\"
.\" $FreeBSD$
.\"
.Dd December 20, 2006
.Dt ASF 8
.Os
.Sh NAME
.Nm asf
.Nd add symbol files
.Sh SYNOPSIS
.Nm
.Op Fl afKksVx
.Op Fl M Ar core
.Op Fl N Ar system
.Op Fl o Ar outfile
.Op Fl X Ar suffix
.Op Ar modules-path Op Ar outfile
.Sh DEPRECATION NOTICE
The
.Nm
utility is not present in
.Fx 12.0
and later.
The
.Xr kgdb 1
debugger handles kernel module state internally.
.Sh DESCRIPTION
By default,
.Nm
reads
.Xr kldstat 8
output from standard input and writes to the
.Pa .asf
file a list of
.Xr gdb 1
commands to add symbol files from KLDs in subdirectories of the subdirectory
.Pa modules
of the current directory, which is intended to be a kernel build directory.
This allows
.Xr gdb 1
to load the symbols into the debugging environment.
.Pp
An optional
.Ar modules-path
argument can specify a semicolon-separated list of directory pathnames
similar to the
.Va kern.module_path
sysctl.
Each directory in the list will be searched in turn for modules.
The default list consists of just one element,
.Pa modules ,
which is suitable if the current directory is a kernel build directory.
.Pp
If
.Ar outfile
is specified,
.Nm
writes to it instead of
.Pa .asf .
If
.Ar outfile
is a single dash
.Pq Sq Fl ,
standard output is used.
.Sh OPTIONS
The following options modify the function of
.Nm :
.Bl -tag -width indent
.It Fl a
When writing to an explicit
.Ar outfile ,
append to the file rather than overwriting it.
.It Fl f
Instead of trying to simplistically guess the path for each module, perform
a traversal in the same way that
.Xr find 1
does to locate an exact path for each module, no matter where in
.Ar modules-path
it is located.
.It Fl K
Instead of reading from standard input, use the conventional
system interface to get the list of modules currently loaded.
.It Fl k
Instead of reading from standard input, start a
.Xr kldstat 8
and read the information from it.
.It Fl M
Specify the core file for
.Xr kvm 3 .
Implies
.Fl V .
.It Fl N
Specify the system file for
.Xr kvm 3 .
Implies
.Fl V .
.It Fl o
Specify the file for
.Nm
to write or append its output to.
If
.Ar outfile
is a single dash
.Pq Sq Fl ,
standard output is used.
.It Fl s
Do not prepend a (guessed) subdirectory of the module path.
.It Fl V
Instead of reading from standard input, use the
.Xr kvm 3
interface to get the list of modules.
This interface allows for inspecting system crash dumps,
as well as the live system.
The
.Fl M
and
.Fl N
options will be of use if inspecting a crash dump.
Elevated privileges, e.g., those of a superuser,
may be needed to use this option.
.It Fl X
Add
.Ar suffix
to the list of suffixes
.Nm
tries to append to KLD file names.
The default list consists of
.Pa .debug ,
.Pa .symbols ,
and the null suffix.
The null suffix always stays at the list tail, after the suffix added.
Should it be needed in the middle of the list,
a blank suffix can be specified to
.Fl X
instead.
.It Fl x
Clear the list of suffixes
.Nm
tries to append to KLD file names.
Only the null suffix is left in the list.
.El
.Sh EXAMPLES
To add symbol files from the system search path specified by the
.Va kern.module_path
sysctl, the following command can be used:
.Pp
.Dl asf -s `sysctl -n kern.module_path`
.Sh SEE ALSO
.Xr gdb 1 ,
.Xr kvm 3 ,
.Xr kld 4 ,
.Xr kldstat 8 ,
.Xr sysctl 8
.Sh HISTORY
The
.Nm
utility first appeared in
.Fx 5.2 .
.Sh AUTHORS
.An Greg Lehey Aq Mt grog@FreeBSD.org
.Sh BUGS
Module paths are guessed in a rather naive way by default.
It is likely to lag behind the changes to the build tree layout.
Using
.Fl f
is recommended.

429
usr.sbin/asf/asf.c
View File

@ -1,429 +0,0 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2002, 2003 Greg Lehey
* 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 ``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 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.
*/
/* $Id: asf.c,v 1.4 2003/05/04 02:55:20 grog Exp grog $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <inttypes.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "asf.h"
struct kfile {
char *name;
caddr_t addr;
int seen;
STAILQ_ENTRY(kfile) link;
};
static STAILQ_HEAD(,kfile) kfile_head = STAILQ_HEAD_INITIALIZER(kfile_head);
void
kfile_add(const char *name, caddr_t addr)
{
struct kfile *kfp;
if ((kfp = malloc(sizeof(*kfp))) == NULL ||
(kfp->name = strdup(name)) == NULL)
errx(2, "out of memory");
kfp->addr = addr;
kfp->seen = 0;
STAILQ_INSERT_TAIL(&kfile_head, kfp, link);
}
static struct kfile *
kfile_find(const char *name)
{
struct kfile *kfp;
STAILQ_FOREACH(kfp, &kfile_head, link)
if (strcmp(kfp->name, name) == 0)
return (kfp); /* found */
return (NULL); /* not found */
}
static int
kfile_allseen(void)
{
struct kfile *kfp;
STAILQ_FOREACH(kfp, &kfile_head, link)
if (!kfp->seen)
return (0); /* at least one unseen */
return (1); /* all seen */
}
static int
kfile_empty(void)
{
return (STAILQ_EMPTY(&kfile_head));
}
/*
* Take a blank separated list of tokens and turn it into a list of
* individual nul-delimited strings. Build a list of pointers at
* token, which must have enough space for the tokens. Return the
* number of tokens, or -1 on error (typically a missing string
* delimiter).
*/
int
tokenize(char *cptr, char *token[], int maxtoken)
{
char delim; /* delimiter to search for */
int tokennr; /* index of this token */
for (tokennr = 0; tokennr < maxtoken;) {
while (isspace(*cptr))
cptr++; /* skip initial white space */
if ((*cptr == '\0') || (*cptr == '\n')
|| (*cptr == '#')) /* end of line */
return tokennr; /* return number of tokens found */
delim = *cptr;
token[tokennr] = cptr; /* point to it */
tokennr++; /* one more */
if (tokennr == maxtoken) /* run off the end? */
return tokennr;
if ((delim == '\'') || (delim == '"')) { /* delimitered */
for (;;) {
cptr++;
if ((*cptr == delim)
&& (cptr[-1] != '\\')) { /* found the partner */
cptr++; /* move on past */
if (!isspace(*cptr)) /* no space after closing quote */
return -1;
*cptr++ = '\0'; /* delimit */
} else if ((*cptr == '\0')
|| (*cptr == '\n')) /* end of line */
return -1;
}
} else { /* not quoted */
while ((*cptr != '\0') && (!isspace(*cptr)) && (*cptr != '\n'))
cptr++;
if (*cptr != '\0') /* not end of the line, */
*cptr++ = '\0'; /* delimit and move to the next */
}
}
return maxtoken; /* can't get here */
}
static void
doobj(const char *path, caddr_t addr, FILE *out)
{
uintmax_t base = (uintptr_t)addr;
uintmax_t textaddr = 0;
uintmax_t dataaddr = 0;
uintmax_t bssaddr = 0;
uintmax_t *up;
int octokens;
char *octoken[MAXTOKEN];
char ocbuf[LINE_MAX + PATH_MAX];
FILE *objcopy;
snprintf(ocbuf, sizeof(ocbuf),
"/usr/bin/objdump --section-headers %s", path);
if ((objcopy = popen(ocbuf, "r")) == NULL)
err(2, "can't start %s", ocbuf);
while (fgets(ocbuf, sizeof(ocbuf), objcopy)) {
octokens = tokenize(ocbuf, octoken, MAXTOKEN);
if (octokens <= 1)
continue;
up = NULL;
if (strcmp(octoken[1], ".text") == 0)
up = &textaddr;
else if (strcmp(octoken[1], ".data") == 0)
up = &dataaddr;
else if (strcmp(octoken[1], ".bss") == 0)
up = &bssaddr;
if (up == NULL)
continue;
*up = strtoumax(octoken[3], NULL, 16) + base;
}
if (textaddr) { /* we must have a text address */
fprintf(out, "add-symbol-file %s 0x%jx", path, textaddr);
if (dataaddr)
fprintf(out, " -s .data 0x%jx", dataaddr);
if (bssaddr)
fprintf(out, " -s .bss 0x%jx", bssaddr);
fprintf(out, "\n");
}
}
static void
findmodules(char *path_argv[], const char *sfx[], FILE *out)
{
char *p;
FTS *fts;
FTSENT *ftsent;
struct kfile *kfp;
int i;
int sl;
/* Have to fts once per suffix to find preferred suffixes first */
do {
sl = *sfx ? strlen(*sfx) : 0; /* current suffix length */
fts = fts_open(path_argv, FTS_PHYSICAL | FTS_NOCHDIR, NULL);
if (fts == NULL)
err(2, "can't begin traversing module path");
while ((ftsent = fts_read(fts)) != NULL) {
if (ftsent->fts_info == FTS_DNR ||
ftsent->fts_info == FTS_ERR ||
ftsent->fts_info == FTS_NS) {
errno = ftsent->fts_errno;
err(2, "error while traversing path %s", ftsent->fts_path);
}
if (ftsent->fts_info != FTS_F)
continue; /* not a plain file */
if (sl > 0) {
/* non-blank suffix; see if file name has it */
i = ftsent->fts_namelen - sl;
if (i <= 0 || strcmp(ftsent->fts_name + i, *sfx) != 0)
continue; /* no such suffix */
if ((p = strdup(ftsent->fts_name)) == NULL)
errx(2, "out of memory");
p[i] = '\0'; /* remove suffix in the copy */
kfp = kfile_find(p);
free(p);
} else
kfp = kfile_find(ftsent->fts_name);
if (kfp && !kfp->seen) {
doobj(ftsent->fts_path, kfp->addr, out);
kfp->seen = 1;
/* Optimization: stop fts as soon as seen all loaded modules */
if (kfile_allseen()) {
fts_close(fts);
return;
}
}
}
if (ftsent == NULL && errno != 0)
err(2, "couldn't complete traversing module path");
fts_close(fts);
} while (*sfx++);
}
static void
usage(const char *myname)
{
fprintf(stderr,
"Usage:\n"
"%s [-afKksVx] [-M core] [-N system] [-o outfile] [-X suffix]\n"
"%*s [modules-path [outfile]]\n\n"
"\t-a\tappend to outfile\n"
"\t-f\tfind the module in any subdirectory of modules-path\n"
"\t-K\tuse kld(2) to get the list of modules\n"
"\t-k\ttake input from kldstat(8)\n"
"\t-M\tspecify core name for kvm(3)\n"
"\t-N\tspecify system name for kvm(3)\n"
"\t-o\tuse outfile instead of \".asf\"\n"
"\t-s\tdon't prepend subdir for module path\n"
"\t-V\tuse kvm(3) to get the list of modules\n"
"\t-X\tappend suffix to list of possible module file name suffixes\n"
"\t-x\tclear list of possible module file name suffixes\n",
myname, (int)strlen(myname), "");
exit(2);
}
#define MAXPATHS 15
#define MAXSUFFIXES 15
/* KLD file names end in this */
static int nsuffixes = 2;
static const char *suffixes[MAXSUFFIXES + 1] = {
".debug",
".symbols",
NULL
};
int
main(int argc, char *argv[])
{
char basename[PATH_MAX];
char path[PATH_MAX];
char *modules_argv[MAXPATHS + 1];
char *copy, *p;
char **ap;
const char *filemode = "w"; /* mode for outfile */
const char *modules_path = "modules"; /* path to kernel build directory */
const char *outfile = ".asf"; /* and where to write the output */
const char *corefile = NULL; /* for kvm(3) */
const char *sysfile = NULL; /* for kvm(3) */
const char **sfx;
struct kfile *kfp;
struct stat st;
FILE *out; /* output file */
int dofind = 0;
int dokld = 0;
int dokvm = 0;
int nosubdir = 0;
int runprog = 0;
int i;
const int sl = strlen(KLDSUFFIX);
while ((i = getopt(argc, argv, "afKkM:N:o:sVX:x")) != -1)
switch (i) {
case 'a':
filemode = "a"; /* append to outfile */
break;
case 'f':
dofind = 1; /* find .ko (recursively) */
break;
case 'K':
dokld = 1; /* use kld(2) interface */
break;
case 'k':
runprog = 1; /* get input from kldstat(8) */
break;
case 'M':
corefile = optarg; /* core file for kvm(3) */
break;
case 'N':
sysfile = optarg; /* system file (kernel) for kvm(3) */
break;
case 'o':
outfile = optarg; /* output file name */
break;
case 's':
nosubdir = 1; /* don't descend into subdirs */
break;
case 'V':
dokvm = 1; /* use kvm(3) interface */
break;
case 'X':
if (nsuffixes >= MAXSUFFIXES)
errx(2, "only %d suffixes can be specified", MAXSUFFIXES);
suffixes[nsuffixes++] = optarg;
suffixes[nsuffixes] = NULL;
break;
case 'x':
nsuffixes = 0;
suffixes[0] = NULL;
break;
default:
usage(argv[0]);
}
argc -= optind;
argv += optind;
if (argc > 0) {
modules_path = argv[0];
argc--, argv++;
}
if (argc > 0) {
outfile = argv[0];
argc--, argv++;
}
if (argc > 0)
usage(argv[0]);
if (strcmp(outfile, "-") == 0)
out = stdout;
else
if ((out = fopen(outfile, filemode)) == NULL)
err(2, "can't open output file %s", outfile);
if (dokvm || corefile || sysfile) {
if (dokld || runprog)
warnx("using kvm(3) instead");
asf_kvm(sysfile, corefile);
} else if (dokld) {
if (runprog)
warnx("using kld(2) instead");
asf_kld();
} else
asf_prog(runprog);
/* Avoid long operations like module tree traversal when nothing to do */
if (kfile_empty()) {
warnx("no kernel modules loaded");
return (0);
}
if ((copy = strdup(modules_path)) == NULL)
errx(2, "out of memory");
for (
ap = modules_argv, p = copy;
(*ap = strsep(&p, ";")) != NULL && ap < &modules_argv[MAXPATHS];
ap++
);
if (*ap)
errx(2, "only %d module path elements can be specified", MAXPATHS);
if (!dofind)
STAILQ_FOREACH(kfp, &kfile_head, link) {
for (ap = modules_argv; *ap; ap++) {
if (!nosubdir) {
/* prepare basename of KLD, w/o suffix */
strlcpy(basename, kfp->name, sizeof(basename) - 1);
i = strlen(basename);
if (i > sl && strcmp(basename + i - sl, KLDSUFFIX) == 0)
i -= sl;
basename[i] = '/';
basename[i + 1] = '\0';
}
for (sfx = suffixes;; sfx++) {
snprintf(path, sizeof(path),
"%s/%s%s%s",
*ap,
nosubdir ? "" : basename,
kfp->name,
*sfx ? *sfx : "");
if (stat(path, &st) == 0) {
doobj(path, kfp->addr, out);
goto found;
}
if (*sfx == NULL)
break;
}
}
warnx("module %s not found in search path", kfp->name);
found:
;
}
else
findmodules(modules_argv, suffixes, out);
free(copy);
return (0);
}

42
usr.sbin/asf/asf.h
View File

@ -1,42 +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.
*
* $FreeBSD$
*/
#define KERNFILE "kernel"
#define KLDSUFFIX ".ko"
#define MAXTOKEN 10
int tokenize(char *cptr, char *token[], int maxtoken);
void kfile_add(const char *name, caddr_t addr);
void asf_kld(void);
void asf_kvm(const char *kernfile, const char *corefile);
void asf_prog(int run);

61
usr.sbin/asf/asf_kld.c
View File

@ -1,61 +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/param.h>
#include <sys/linker.h>
#include <err.h>
#include <string.h>
#include "asf.h"
/*
* Get the linker file list using the kld interface.
* Works with a live kernel only.
*/
void
asf_kld(void)
{
struct kld_file_stat kfs;
int fid = 0; /* indicates the beginning of the linker file list */
while ((fid = kldnext(fid)) != 0) {
if (fid == -1)
err(2, "kldnext");
kfs.version = sizeof(kfs); /* must be set for kldstat(2) */
/* Get info on this linker file */
if (kldstat(fid, &kfs) == -1)
err(2, "kldstat");
if (strcmp(kfs.name, KERNFILE) == 0)
continue;
/* Add to our list of linker files */
kfile_add(kfs.name, kfs.address);
}
}

130
usr.sbin/asf/asf_kvm.c
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@ -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);
}

75
usr.sbin/asf/asf_prog.c
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@ -1,75 +0,0 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2002, 2003 Greg Lehey
* 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 ``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 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 <err.h>
#include <inttypes.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include "asf.h"
/*
* Get the linker file list from kldstat(8) output.
* The "run" flag tells if kldstat(8) should run now.
* Of course, kldstat(1) can run in a live system only, but its output
* can be saved beforehand and fed to this function later via stdin.
*/
void
asf_prog(int run)
{
char buf[LINE_MAX];
char *token[MAXTOKEN];
char *endp;
FILE *kldstat;
caddr_t base;
int tokens;
if (run) {
if ((kldstat = popen("kldstat", "r")) == NULL)
err(2, "can't start kldstat");
} else
kldstat = stdin;
while (fgets(buf, sizeof(buf), kldstat)) {
/* Skip header line and main kernel file */
if (buf[0] == 'I' || strstr(buf, KERNFILE))
continue;
tokens = tokenize(buf, token, MAXTOKEN);
if (tokens < 4)
continue;
base = (caddr_t)(uintptr_t)strtoumax(token[2], &endp, 16);
if (endp == NULL || *endp != '\0')
continue;
kfile_add(token[4], base);
}
}