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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/scripts/markup_oops.pl | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/scripts/markup_oops.pl')
-rw-r--r-- | ANDROID_3.4.5/scripts/markup_oops.pl | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/ANDROID_3.4.5/scripts/markup_oops.pl b/ANDROID_3.4.5/scripts/markup_oops.pl deleted file mode 100644 index 827896f5..00000000 --- a/ANDROID_3.4.5/scripts/markup_oops.pl +++ /dev/null @@ -1,370 +0,0 @@ -#!/usr/bin/perl - -use File::Basename; -use Math::BigInt; -use Getopt::Long; - -# Copyright 2008, Intel Corporation -# -# This file is part of the Linux kernel -# -# This program file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; version 2 of the License. -# -# 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; -} - |