__ __ __ __ _____ _ _ _____ _ _ _ | \/ | \ \ / / | __ \ (_) | | / ____| | | | | | \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | | | |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | | | | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | | |_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1 if you need WebShell for Seo everyday contact me on Telegram Telegram Address : @jackleetFor_More_Tools:
#!/usr/bin/perl
# SPDX-License-Identifier: GPL-2.0-only
use File::Basename;
use Math::BigInt;
use Getopt::Long;
# Copyright 2008, Intel Corporation
#
# This file is part of the Linux kernel
#
# Authors:
# Arjan van de Ven <arjan@linux.intel.com>
my $cross_compile = "";
my $vmlinux_name = "";
my $modulefile = "";
# Get options
Getopt::Long::GetOptions(
'cross-compile|c=s' => \$cross_compile,
'module|m=s' => \$modulefile,
'help|h' => \&usage,
) || usage ();
my $vmlinux_name = $ARGV[0];
if (!defined($vmlinux_name)) {
my $kerver = `uname -r`;
chomp($kerver);
$vmlinux_name = "/lib/modules/$kerver/build/vmlinux";
print "No vmlinux specified, assuming $vmlinux_name\n";
}
my $filename = $vmlinux_name;
# Parse the oops to find the EIP value
my $target = "0";
my $function;
my $module = "";
my $func_offset = 0;
my $vmaoffset = 0;
my %regs;
sub parse_x86_regs
{
my ($line) = @_;
if ($line =~ /EAX: ([0-9a-f]+) EBX: ([0-9a-f]+) ECX: ([0-9a-f]+) EDX: ([0-9a-f]+)/) {
$regs{"%eax"} = $1;
$regs{"%ebx"} = $2;
$regs{"%ecx"} = $3;
$regs{"%edx"} = $4;
}
if ($line =~ /ESI: ([0-9a-f]+) EDI: ([0-9a-f]+) EBP: ([0-9a-f]+) ESP: ([0-9a-f]+)/) {
$regs{"%esi"} = $1;
$regs{"%edi"} = $2;
$regs{"%esp"} = $4;
}
if ($line =~ /RAX: ([0-9a-f]+) RBX: ([0-9a-f]+) RCX: ([0-9a-f]+)/) {
$regs{"%eax"} = $1;
$regs{"%ebx"} = $2;
$regs{"%ecx"} = $3;
}
if ($line =~ /RDX: ([0-9a-f]+) RSI: ([0-9a-f]+) RDI: ([0-9a-f]+)/) {
$regs{"%edx"} = $1;
$regs{"%esi"} = $2;
$regs{"%edi"} = $3;
}
if ($line =~ /RBP: ([0-9a-f]+) R08: ([0-9a-f]+) R09: ([0-9a-f]+)/) {
$regs{"%r08"} = $2;
$regs{"%r09"} = $3;
}
if ($line =~ /R10: ([0-9a-f]+) R11: ([0-9a-f]+) R12: ([0-9a-f]+)/) {
$regs{"%r10"} = $1;
$regs{"%r11"} = $2;
$regs{"%r12"} = $3;
}
if ($line =~ /R13: ([0-9a-f]+) R14: ([0-9a-f]+) R15: ([0-9a-f]+)/) {
$regs{"%r13"} = $1;
$regs{"%r14"} = $2;
$regs{"%r15"} = $3;
}
}
sub reg_name
{
my ($reg) = @_;
$reg =~ s/r(.)x/e\1x/;
$reg =~ s/r(.)i/e\1i/;
$reg =~ s/r(.)p/e\1p/;
return $reg;
}
sub process_x86_regs
{
my ($line, $cntr) = @_;
my $str = "";
if (length($line) < 40) {
return ""; # not an asm istruction
}
# find the arguments to the instruction
if ($line =~ /([0-9a-zA-Z\,\%\(\)\-\+]+)$/) {
$lastword = $1;
} else {
return "";
}
# we need to find the registers that get clobbered,
# since their value is no longer relevant for previous
# instructions in the stream.
$clobber = $lastword;
# first, remove all memory operands, they're read only
$clobber =~ s/\([a-z0-9\%\,]+\)//g;
# then, remove everything before the comma, thats the read part
$clobber =~ s/.*\,//g;
# if this is the instruction that faulted, we haven't actually done
# the write yet... nothing is clobbered.
if ($cntr == 0) {
$clobber = "";
}
foreach $reg (keys(%regs)) {
my $clobberprime = reg_name($clobber);
my $lastwordprime = reg_name($lastword);
my $val = $regs{$reg};
if ($val =~ /^[0]+$/) {
$val = "0";
} else {
$val =~ s/^0*//;
}
# first check if we're clobbering this register; if we do
# we print it with a =>, and then delete its value
if ($clobber =~ /$reg/ || $clobberprime =~ /$reg/) {
if (length($val) > 0) {
$str = $str . " $reg => $val ";
}
$regs{$reg} = "";
$val = "";
}
# now check if we're reading this register
if ($lastword =~ /$reg/ || $lastwordprime =~ /$reg/) {
if (length($val) > 0) {
$str = $str . " $reg = $val ";
}
}
}
return $str;
}
# parse the oops
while (<STDIN>) {
my $line = $_;
if ($line =~ /EIP: 0060:\[\<([a-z0-9]+)\>\]/) {
$target = $1;
}
if ($line =~ /RIP: 0010:\[\<([a-z0-9]+)\>\]/) {
$target = $1;
}
if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/0x[a-f0-9]/) {
$function = $1;
$func_offset = $2;
}
if ($line =~ /RIP: 0010:\[\<[0-9a-f]+\>\] \[\<[0-9a-f]+\>\] ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/0x[a-f0-9]/) {
$function = $1;
$func_offset = $2;
}
# check if it's a module
if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]+\W\[([a-zA-Z0-9\_\-]+)\]/) {
$module = $3;
}
if ($line =~ /RIP: 0010:\[\<[0-9a-f]+\>\] \[\<[0-9a-f]+\>\] ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]+\W\[([a-zA-Z0-9\_\-]+)\]/) {
$module = $3;
}
parse_x86_regs($line);
}
my $decodestart = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex("0x$func_offset");
my $decodestop = Math::BigInt->from_hex("0x$target") + 8192;
if ($target eq "0") {
print "No oops found!\n";
usage();
}
# if it's a module, we need to find the .ko file and calculate a load offset
if ($module ne "") {
if ($modulefile eq "") {
$modulefile = `modinfo -F filename $module`;
chomp($modulefile);
}
$filename = $modulefile;
if ($filename eq "") {
print "Module .ko file for $module not found. Aborting\n";
exit;
}
# ok so we found the module, now we need to calculate the vma offset
open(FILE, $cross_compile."objdump -dS $filename |") || die "Cannot start objdump";
while (<FILE>) {
if ($_ =~ /^([0-9a-f]+) \<$function\>\:/) {
my $fu = $1;
$vmaoffset = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex("0x$fu") - Math::BigInt->from_hex("0x$func_offset");
}
}
close(FILE);
}
my $counter = 0;
my $state = 0;
my $center = -1;
my @lines;
my @reglines;
sub InRange {
my ($address, $target) = @_;
my $ad = "0x".$address;
my $ta = "0x".$target;
my $delta = Math::BigInt->from_hex($ad) - Math::BigInt->from_hex($ta);
if (($delta > -4096) && ($delta < 4096)) {
return 1;
}
return 0;
}
# first, parse the input into the lines array, but to keep size down,
# we only do this for 4Kb around the sweet spot
open(FILE, $cross_compile."objdump -dS --adjust-vma=$vmaoffset --start-address=$decodestart --stop-address=$decodestop $filename |") || die "Cannot start objdump";
while (<FILE>) {
my $line = $_;
chomp($line);
if ($state == 0) {
if ($line =~ /^([a-f0-9]+)\:/) {
if (InRange($1, $target)) {
$state = 1;
}
}
}
if ($state == 1) {
if ($line =~ /^([a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]+)\:/) {
my $val = $1;
if (!InRange($val, $target)) {
last;
}
if ($val eq $target) {
$center = $counter;
}
}
$lines[$counter] = $line;
$counter = $counter + 1;
}
}
close(FILE);
if ($counter == 0) {
print "No matching code found \n";
exit;
}
if ($center == -1) {
print "No matching code found \n";
exit;
}
my $start;
my $finish;
my $codelines = 0;
my $binarylines = 0;
# now we go up and down in the array to find how much we want to print
$start = $center;
while ($start > 1) {
$start = $start - 1;
my $line = $lines[$start];
if ($line =~ /^([a-f0-9]+)\:/) {
$binarylines = $binarylines + 1;
} else {
$codelines = $codelines + 1;
}
if ($codelines > 10) {
last;
}
if ($binarylines > 20) {
last;
}
}
$finish = $center;
$codelines = 0;
$binarylines = 0;
while ($finish < $counter) {
$finish = $finish + 1;
my $line = $lines[$finish];
if ($line =~ /^([a-f0-9]+)\:/) {
$binarylines = $binarylines + 1;
} else {
$codelines = $codelines + 1;
}
if ($codelines > 10) {
last;
}
if ($binarylines > 20) {
last;
}
}
my $i;
# start annotating the registers in the asm.
# this goes from the oopsing point back, so that the annotator
# can track (opportunistically) which registers got written and
# whos value no longer is relevant.
$i = $center;
while ($i >= $start) {
$reglines[$i] = process_x86_regs($lines[$i], $center - $i);
$i = $i - 1;
}
$i = $start;
while ($i < $finish) {
my $line;
if ($i == $center) {
$line = "*$lines[$i] ";
} else {
$line = " $lines[$i] ";
}
print $line;
if (defined($reglines[$i]) && length($reglines[$i]) > 0) {
my $c = 60 - length($line);
while ($c > 0) { print " "; $c = $c - 1; };
print "| $reglines[$i]";
}
if ($i == $center) {
print "<--- faulting instruction";
}
print "\n";
$i = $i +1;
}
sub usage {
print <<EOT;
Usage:
dmesg | perl $0 [OPTION] [VMLINUX]
OPTION:
-c, --cross-compile CROSS_COMPILE Specify the prefix used for toolchain.
-m, --module MODULE_DIRNAME Specify the module filename.
-h, --help Help.
EOT
exit;
}
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| atomic | Folder | 0755 |
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| clang-tools | Folder | 0755 |
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| coccinelle | Folder | 0755 |
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| gcc-plugins | Folder | 0755 |
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| gdb | Folder | 0755 |
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| genksyms | Folder | 0755 |
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| include | Folder | 0755 |
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| kconfig | Folder | 0755 |
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| ksymoops | Folder | 0755 |
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| mod | Folder | 0755 |
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| Kbuild.include | File | 10.24 KB | 0644 |
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| Kconfig.include | File | 2.56 KB | 0644 |
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| Lindent | File | 506 B | 0755 |
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| Makefile.modpost | File | 4.16 KB | 0644 |
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| Makefile.userprogs | File | 1.57 KB | 0644 |
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| Makefile.vmlinux | File | 890 B | 0644 |
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| adjust_autoksyms.sh | File | 2.11 KB | 0755 |
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| bloat-o-meter | File | 3.36 KB | 0755 |
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| bootgraph.pl | File | 5.64 KB | 0755 |
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| bpf_doc.py | File | 31.73 KB | 0755 |
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| cc-can-link.sh | File | 170 B | 0755 |
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| cc-version.sh | File | 1.35 KB | 0755 |
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| check-sysctl-docs | File | 4.37 KB | 0755 |
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| checkkconfigsymbols.py | File | 15.88 KB | 0755 |
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| checkstack.pl | File | 5.9 KB | 0755 |
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| checksyscalls.sh | File | 7.34 KB | 0755 |
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| checkversion.pl | File | 2.15 KB | 0755 |
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| cleanfile | File | 3.46 KB | 0755 |
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| cleanpatch | File | 5.06 KB | 0755 |
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| coccicheck | File | 7.89 KB | 0755 |
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| config | File | 4.67 KB | 0755 |
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| const_structs.checkpatch | File | 1009 B | 0644 |
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| decode_stacktrace.sh | File | 6.56 KB | 0755 |
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| decodecode | File | 2.89 KB | 0755 |
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| depmod.sh | File | 1.41 KB | 0755 |
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| dev-needs.sh | File | 6.08 KB | 0755 |
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| diffconfig | File | 4.12 KB | 0755 |
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| documentation-file-ref-check | File | 5.6 KB | 0755 |
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| export_report.pl | File | 4.49 KB | 0755 |
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| extract-cert | File | 14.12 KB | 0755 |
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| extract-cert.c | File | 3.63 KB | 0644 |
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| extract-ikconfig | File | 1.7 KB | 0755 |
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| extract-module-sig.pl | File | 3.65 KB | 0755 |
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| extract-sys-certs.pl | File | 3.74 KB | 0755 |
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| extract-vmlinux | File | 1.66 KB | 0755 |
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| extract_xc3028.pl | File | 44.61 KB | 0755 |
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| faddr2line | File | 6.16 KB | 0755 |
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| file-size.sh | File | 90 B | 0755 |
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| find-unused-docs.sh | File | 1.28 KB | 0755 |
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| gcc-ld | File | 715 B | 0755 |
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| gcc-x86_32-has-stack-protector.sh | File | 412 B | 0755 |
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| gcc-x86_64-has-stack-protector.sh | File | 202 B | 0755 |
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| gen_autoksyms.sh | File | 1.4 KB | 0755 |
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| gen_ksymdeps.sh | File | 403 B | 0755 |
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| gen_packed_field_checks.c | File | 1.19 KB | 0644 |
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| generate_initcall_order.pl | File | 5.94 KB | 0755 |
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| generate_rust_target.rs | File | 5.26 KB | 0644 |
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| get_abi.pl | File | 15.09 KB | 0755 |
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| get_dvb_firmware | File | 24.54 KB | 0755 |
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| get_feat.pl | File | 14.34 KB | 0755 |
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| get_maintainer.pl | File | 67.13 KB | 0755 |
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| gfp-translate | File | 1.71 KB | 0755 |
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| headers_check.pl | File | 3.73 KB | 0755 |
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| headers_install.sh | File | 3.17 KB | 0755 |
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| insert-sys-cert.c | File | 8.87 KB | 0644 |
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| install.sh | File | 990 B | 0755 |
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| jobserver-exec | File | 2.16 KB | 0755 |
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| kallsyms | File | 18.23 KB | 0755 |
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| kallsyms.c | File | 20.38 KB | 0644 |
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| kernel-doc | File | 66.32 KB | 0755 |
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| ld-version.sh | File | 1.67 KB | 0755 |
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| leaking_addresses.pl | File | 12.8 KB | 0755 |
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| link-vmlinux.sh | File | 8.88 KB | 0755 |
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| makelst | File | 812 B | 0755 |
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| markup_oops.pl | File | 7.92 KB | 0755 |
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| min-tool-version.sh | File | 473 B | 0755 |
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| mkcompile_h | File | 2.59 KB | 0755 |
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| mksysmap | File | 1.33 KB | 0755 |
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| mkuboot.sh | File | 418 B | 0755 |
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| module.lds | File | 432 B | 0644 |
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| module.lds.S | File | 1.49 KB | 0644 |
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| modules-check.sh | File | 431 B | 0755 |
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| nsdeps | File | 1.63 KB | 0644 |
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| objdiff | File | 2.83 KB | 0755 |
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| objdump-func | File | 715 B | 0755 |
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| pahole-version.sh | File | 273 B | 0755 |
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| parse-maintainers.pl | File | 4.54 KB | 0755 |
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| patch-kernel | File | 9.95 KB | 0755 |
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| profile2linkerlist.pl | File | 410 B | 0755 |
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| prune-kernel | File | 712 B | 0755 |
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| recordmcount.c | File | 16.69 KB | 0644 |
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| recordmcount.h | File | 19.37 KB | 0644 |
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| recordmcount.pl | File | 17.61 KB | 0755 |
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| remove-stale-files | File | 1.35 KB | 0755 |
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| setlocalversion | File | 3.59 KB | 0755 |
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| show_delta | File | 3.01 KB | 0755 |
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| sign-file | File | 22.16 KB | 0755 |
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| sign-file.c | File | 9.93 KB | 0644 |
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| sorttable | File | 22.12 KB | 0755 |
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| sorttable.c | File | 7.62 KB | 0644 |
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| sorttable.h | File | 12.85 KB | 0644 |
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| spdxcheck-test.sh | File | 323 B | 0644 |
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| spelling.txt | File | 31.92 KB | 0644 |
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| sphinx-pre-install | File | 24.29 KB | 0755 |
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| split-man.pl | File | 600 B | 0755 |
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| stackdelta | File | 1.84 KB | 0755 |
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| stackusage | File | 798 B | 0755 |
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| subarch.include | File | 641 B | 0644 |
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| syscallhdr.sh | File | 1.89 KB | 0755 |
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| syscallnr.sh | File | 1.45 KB | 0644 |
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| syscalltbl.sh | File | 1.46 KB | 0755 |
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| tags.sh | File | 9.66 KB | 0755 |
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| test_fortify.sh | File | 2.23 KB | 0644 |
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| tools-support-relr.sh | File | 550 B | 0755 |
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| unifdef | File | 34.12 KB | 0755 |
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| unifdef.c | File | 34.8 KB | 0644 |
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| ver_linux | File | 2.59 KB | 0755 |
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| xen-hypercalls.sh | File | 386 B | 0644 |
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| xz_wrap.sh | File | 567 B | 0755 |
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