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author | Hui Zhu <hui.zhu@windriver.com> | 2010-01-26 17:13:07 +0800 |
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committer | Michal Marek <mmarek@suse.cz> | 2010-02-05 22:32:23 +0100 |
commit | 52e13e219d5930fb8fb774050e6ecffa244a60a9 (patch) | |
tree | 377cc7b7603ef21ce2ada4d9a6f5a0e245bad9a0 | |
parent | d224a94ab988c01f2841dccd39a518424fd26336 (diff) | |
download | kernel_samsung_tuna-52e13e219d5930fb8fb774050e6ecffa244a60a9.zip kernel_samsung_tuna-52e13e219d5930fb8fb774050e6ecffa244a60a9.tar.gz kernel_samsung_tuna-52e13e219d5930fb8fb774050e6ecffa244a60a9.tar.bz2 |
markup_oops.pl: add options to improve cross-sompilation environments
The markup_oops.pl have 3 troubles to support cross-compiler environment:
1. It use objdump directly.
2. It use modinfo to get the message of module.
3. It use hex function that cannot support 64-bit number in 32-bit arch.
This patch add 3 options to markup_oops.pl:
1. -c CROSS_COMPILE Specify the prefix used for toolchain.
2. -m MODULE_DIRNAME Specify the module directory name.
3. Change hex function to Math::BigInt->from_hex.
After this patch, parse the x8664 oops in x86, we can:
cat amd64m | perl ~/kernel/tmp/m.pl -c /home/teawater/kernel/bin/x8664- -m ./e.ko vmlinux
Thanks,
Hui
Signed-off-by: Hui Zhu <teawater@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: ozan@pardus.org.tr
Cc: Matthew Wilcox <willy@linux.intel.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
-rw-r--r-- | scripts/markup_oops.pl | 49 |
1 files changed, 36 insertions, 13 deletions
diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl index 4a95539..a7e8e01 100644 --- a/scripts/markup_oops.pl +++ b/scripts/markup_oops.pl @@ -2,6 +2,7 @@ use File::Basename; use Math::BigInt; +use Getopt::Long; # Copyright 2008, Intel Corporation # @@ -15,7 +16,17 @@ use Math::BigInt; # Arjan van de Ven <arjan@linux.intel.com> -my $vmlinux_name = $ARGV[0]; +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, +); +my $vmlinux_name = $ARGV[$#ARGV]; if (!defined($vmlinux_name)) { my $kerver = `uname -r`; chomp($kerver); @@ -23,9 +34,8 @@ if (!defined($vmlinux_name)) { print "No vmlinux specified, assuming $vmlinux_name\n"; } my $filename = $vmlinux_name; -# -# Step 1: Parse the oops to find the EIP value -# + +# Parse the oops to find the EIP value my $target = "0"; my $function; @@ -177,26 +187,26 @@ my $decodestart = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex(" my $decodestop = Math::BigInt->from_hex("0x$target") + 8192; if ($target eq "0") { print "No oops found!\n"; - print "Usage: \n"; - print " dmesg | perl scripts/markup_oops.pl vmlinux\n"; - exit; + usage(); } # if it's a module, we need to find the .ko file and calculate a load offset if ($module ne "") { - my $modulefile = `modinfo $module | grep '^filename:' | awk '{ print \$2 }'`; - chomp($modulefile); + if ($modulefile eq "") { + my $modulefile = `modinfo $module | grep '^filename:' | awk '{ print \$2 }'`; + chomp($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, "objdump -dS $filename |") || die "Cannot start objdump"; + open(FILE, $cross_compile."objdump -dS $filename |") || die "Cannot start objdump"; while (<FILE>) { if ($_ =~ /^([0-9a-f]+) \<$function\>\:/) { my $fu = $1; - $vmaoffset = hex($target) - hex($fu) - hex($func_offset); + $vmaoffset = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex("0x$fu") - Math::BigInt->from_hex("0x$func_offset"); } } close(FILE); @@ -212,7 +222,7 @@ sub InRange { my ($address, $target) = @_; my $ad = "0x".$address; my $ta = "0x".$target; - my $delta = hex($ad) - hex($ta); + my $delta = Math::BigInt->from_hex($ad) - Math::BigInt->from_hex($ta); if (($delta > -4096) && ($delta < 4096)) { return 1; @@ -225,7 +235,7 @@ sub InRange { # first, parse the input into the lines array, but to keep size down, # we only do this for 4Kb around the sweet spot -open(FILE, "objdump -dS --adjust-vma=$vmaoffset --start-address=$decodestart --stop-address=$decodestop $filename |") || die "Cannot start objdump"; +open(FILE, $cross_compile."objdump -dS --adjust-vma=$vmaoffset --start-address=$decodestart --stop-address=$decodestop $filename |") || die "Cannot start objdump"; while (<FILE>) { my $line = $_; @@ -345,3 +355,16 @@ while ($i < $finish) { $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 directory name. + -h, --help Help. +EOT + exit; +} + |