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Merge branch 'for-35' of git://repo.or.cz/linux-kbuild

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* 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
  kbuild: Revert part of e8d400a to resolve a conflict
  kbuild: Fix checking of scm-identifier variable
  gconfig: add support to show hidden options that have prompts
  menuconfig: add support to show hidden options which have prompts
  gconfig: remove show_debug option
  gconfig: remove dbg_print_ptype() and dbg_print_stype()
  kconfig: fix zconfdump()
  kconfig: some small fixes
  add random binaries to .gitignore
  kbuild: Include gen_initramfs_list.sh and the file list in the .d file
  kconfig: recalc symbol value before showing search results
  .gitignore: ignore *.lzo files
  headerdep: perlcritic warning
  scripts/Makefile.lib: Align the output of LZO
  kbuild: Generate modules.builtin in make modules_install
  Revert "kbuild: specify absolute paths for cscope"
  kbuild: Do not unnecessarily regenerate modules.builtin
  headers_install: use local file handles
  headers_check: fix perl warnings
  export_report: fix perl warnings
  ...
This commit is contained in:
Linus Torvalds
2010-06-01 08:55:52 -07:00
parent b904d7131d 64ffc9ff42
commit 1f73897861
111 changed files with 3023 additions and 538 deletions
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54
scripts/markup_oops.pl
View File

@@ -2,6 +2,7 @@
use File::Basename;
use Math::BigInt;
use Getopt::Long;
# Copyright 2008, Intel Corporation
#
@@ -15,6 +16,16 @@ use Math::BigInt;
# 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 $kerver = `uname -r`;
@@ -23,9 +34,8 @@ if (!defined($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 "") {
$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, "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);
@@ -204,7 +214,7 @@ if ($module ne "") {
my $counter = 0;
my $state = 0;
my $center = 0;
my $center = -1;
my @lines;
my @reglines;
@@ -212,7 +222,7 @@ sub InRange {
my ($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 = $_;
@@ -236,7 +246,8 @@ while (<FILE>) {
$state = 1;
}
}
} else {
}
if ($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, $target)) {
@@ -259,7 +270,7 @@ if ($counter == 0) {
exit;
}
if ($center == 0) {
if ($center == -1) {
print "No matching code found \n";
exit;
}
@@ -344,3 +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 filename.
-h, --help Help.
EOT
exit;
}