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authorHui Zhu <hui.zhu@windriver.com>2010-01-28 06:58:02 +0000
committerMichal Marek <mmarek@suse.cz>2010-02-02 14:33:56 +0100
commit0139f1d9539395ca341e17060ae26f44f5f31434 (patch)
tree7e09135e69126119f50a50f3dfcf961fc38790af /scripts/markup_oops.pl
parent94a47083522ec4bcfc03134ebe908f1bfb393057 (diff)
downloadlinux-linaro-stable-0139f1d9539395ca341e17060ae26f44f5f31434.tar.gz
markup_oops.pl: fix for faulting instruction in the first line of a range
I got a "No matching code found" when I use markup_oops.pl parse a error in a x86_64 module. cat e.c int init_module(void) { char *buf = 0; buf[0] = 3; return 0; } void cleanup_module(void) { //char *buf = 0; //buf[0] = 3; } MODULE_AUTHOR("Hui Zhu"); MODULE_LICENSE("GPL"); 0000000000000000 <init_module>: init_module(): /home/teawater/study/kernel/stack2core/example/e.c:10 0: c6 04 25 00 00 00 00 movb $0x3,0x0 7: 03 /home/teawater/study/kernel/stack2core/example/e.c:13 8: 31 c0 xor %eax,%eax a: c3 retq b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 0000000000000010 <cleanup_module>: cleanup_module(): /home/teawater/study/kernel/stack2core/example/e.c:20 10: f3 c3 repz retq 12: 90 nop 13: 90 nop Disassembly of section .modinfo: This is because the faulting instruction "movb $0x3,0x0" is the first line of the range. In the markup_oops.pl: main::(./scripts/markup_oops.pl:245): 245: if (InRange($1, $target)) { DB<2> p $line ffffffffa001b000: c6 04 25 00 00 00 00 movb $0x3,0x0 DB<3> p $counter 0 It just set $center in next loop. So it cannot get the $center. And even if $center is set to the right value 0. if ($center == 0) { print "No matching code found \n"; exit; } The first line $center will be 0, so I change the default value to -1. Signed-off-by: Hui Zhu <teawater@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/markup_oops.pl')
-rw-r--r--scripts/markup_oops.pl7
1 files changed, 4 insertions, 3 deletions
diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
index ce3e40b01e48..4a95539c807a 100644
--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -204,7 +204,7 @@ if ($module ne "") {
my $counter = 0;
my $state = 0;
-my $center = 0;
+my $center = -1;
my @lines;
my @reglines;
@@ -236,7 +236,8 @@ 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, $target)) {
@@ -259,7 +260,7 @@ if ($counter == 0) {
exit;
}
-if ($center == 0) {
+if ($center == -1) {
print "No matching code found \n";
exit;
}