05 Jun, 2019
1 commit
-
Based on 1 normalized pattern(s):
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 licenseextracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Allison Randal
Reviewed-by: Armijn Hemel
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081036.527324761@linutronix.de
Signed-off-by: Greg Kroah-Hartman
14 May, 2017
1 commit
-
The default NetBSD package manager is pkgsrc and it installs Perl
along other third party programs under custom and configurable prefix.
The default prefix for binary prebuilt packages is /usr/pkg, and the
Perl executable lands in /usr/pkg/bin/perl.This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's
the most portable solution that should work for almost everybody.
Perl's executable is detected automatically.This change switches -w option passed to the executable with more
modern "use warnings;" approach. There is no functional change to the
default behavior.While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?).
Signed-off-by: Kamil Rytarowski
Signed-off-by: Masahiro Yamada
20 Aug, 2014
1 commit
-
The Makefiles call the respective interpreter explicitly, but this makes
it easier to use the scripts manually.Signed-off-by: Michal Marek
10 Jun, 2014
1 commit
-
Signed-off-by: Masahiro Yamada
01 Jun, 2010
1 commit
-
* '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
...
06 Feb, 2010
2 commits
-
1. Fix a little format issue.
2. Check the return of "Getopt::Long::GetOptions". Output usage and
exit if it get error.
3. Change $ARGV[$#ARGV] to $ARGV[0].
4. Change the code which get $modulefile from modinfo. Replace the
pipeline with `modinfo -F filename $module`.
4. Change usage from "Specify the module directory name" to "Specify the
module filename".Signed-off-by: Hui Zhu
Signed-off-by: Michal Marek -
The markup_oops.pl have 3 troubles to support cross-compiler environment:
1. It use objdump directly.
2. It use modinfo to get the message of module.
3. It use hex function that cannot support 64-bit number in 32-bit arch.This patch add 3 options to markup_oops.pl:
1. -c CROSS_COMPILE Specify the prefix used for toolchain.
2. -m MODULE_DIRNAME Specify the module directory name.
3. Change hex function to Math::BigInt->from_hex.After this patch, parse the x8664 oops in x86, we can:
cat amd64m | perl ~/kernel/tmp/m.pl -c /home/teawater/kernel/bin/x8664- -m ./e.ko vmlinuxThanks,
HuiSigned-off-by: Hui Zhu
Cc: Andrew Morton
Cc: Arjan van de Ven
Cc: Sam Ravnborg
Cc: ozan@pardus.org.tr
Cc: Matthew Wilcox
Acked-by: WANG Cong
Signed-off-by: Michal Marek
03 Feb, 2010
1 commit
-
When I use markup_oops.pl parse a x8664 oops, I got:
objdump: --start-address: bad number: NaN
No matching code found
This is because:
main::(./m.pl:228): open(FILE, "objdump -dS --adjust-vma=$vmaoffset --start-address=$decodestart --stop-address=$decodestop $filename |") || die "Cannot start objdump";
DB p $decodestart
NaNThis NaN is from:
main::(./m.pl:176): my $decodestart = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex("0x$func_offset");
DB p $func_offset
0x175There is already a "0x" in $func_offset, another 0x makes it a NaN.
The $func_offset is from line:
if ($line =~ /RIP: 0010:\[\\] \[\\] ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]/) {
$function = $1;
$func_offset = $2;
}I make a patch to change "(0x[0-9a-f]+)\/0x[a-f0-9]/)" to "0x([0-9a-f]+)\/0x[a-f0-9]/)".
Signed-off-by: Hui Zhu
Cc: Arjan van de Ven
Cc: Michal Marek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
02 Feb, 2010
1 commit
-
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():
/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():
/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 p $line
ffffffffa001b000: c6 04 25 00 00 00 00 movb $0x3,0x0
DB p $counter
0It 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 $center will be 0, so I change the default value to -1.Signed-off-by: Hui Zhu
Signed-off-by: Michal Marek
17 Jan, 2010
1 commit
-
When I try to use markup_oops.pl in x86, I always get:
cat 1 | perl markup_oops.pl ./vmlinux
objdump: --start-address: bad number: NaN
No matching code foundThis is because in line:
if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/[a-f0-9]/) {
$function = $1;
$func_offset = $2;
}$func_offset will get a number like "0x2"
But in follow code:
my $decodestart = Math::BigInt->from_hex("0x$target") -
Math::BigInt->from_hex("0x$func_offset");It add other ox to ox2. Then this value will be set to NaN.
So I made a small patch to fix it.
Signed-off-by: Hui Zhu
Acked-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Sep, 2009
1 commit
-
When EIP is at a module having an underscore in its name, the current code
fails to find it because the module filenames has '-' instead of '_'. Use
modinfo for a better path finding.Signed-off-by: Ozan Çaglayan
Acked-by: WANG Cong
Cc: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Sam Ravnborg
30 Jul, 2009
1 commit
-
A 32-bit perl can't handle 64-bit addresses without using the BigInt
package.Signed-off-by: Matthew Wilcox
Acked-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Feb, 2009
2 commits
-
Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Sam Ravnborg -
An oops dump also contains the register values.
This patch parses these for (32 bit) x86, and then annotates the
disassembly with these values; this helps in analysis of the oops by the
developer, for example, NULL pointer or other pointer bugs show up clearly
this way.Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Sam Ravnborg
13 Jan, 2009
1 commit
-
There has been some light flamewar on lkml about decoding oopses
in modules (as part of the crashdump flamewar).Now this isn't rocket science, just the markup_oops.pl script
cheaped out and didn't handle modules. But really; a flamewar
all about that?? What happened to C++ in the kernel or reading
files from inside the kernel?This patch adds module support to markup_oops.pl; it's not the
most pretty perl but it works for my testcases...Signed-off-by: Arjan van de Ven
Signed-off-by: Linus Torvalds
07 Jan, 2009
1 commit
-
We're struggling all the time to figure out where the code came from that
oopsed.. The script below (a adaption from a script used by
kerneloops.org) can help developers quite a bit, at least for non-module
cases.It works and looks like this:
[/home/arjan/linux]$ dmesg | perl scripts/markup_oops.pl vmlinux
{
struct agp_memory *memory;memory = agp_allocate_memory(agp_bridge, pg_count, type);
c055c10f: 89 c2 mov %eax,%edx
if (memory == NULL)
c055c111: 74 19 je c055c12c
/* This function must only be called when current_controller != NULL */
static void agp_insert_into_pool(struct agp_memory * temp)
{
struct agp_memory *prev;prev = agp_fe.current_controller->pool;
c055c113: a1 ec dc 8f c0 mov 0xc08fdcec,%eax
*c055c118: 8b 40 10 mov 0x10(%eax),%eax
prev->prev = temp;
c055c11f: 89 50 04 mov %edx,0x4(%eax)
temp->next = prev;
c055c122: 89 02 mov %eax,(%edx)
}
agp_fe.current_controller->pool = temp;
c055c124: a1 ec dc 8f c0 mov 0xc08fdcec,%eax
c055c129: 89 50 10 mov %edx,0x10(%eax)
if (memory == NULL)
return NULL;agp_insert_into_pool(memory);
so in this case, we faulted while dereferencing agp_fe.current_controller
pointer, and we get to see exactly which function and line it affects...
Personally I find this very useful, and I can see value for having this
script in the kernel for more-than-just-me to use.Caveats:
* It only works for oopses not-in-modules
* It only works nicely for kernels compiled with CONFIG_DEBUG_INFO
* It's not very fast.
* It only works on x86Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
