----- Original Message -----
Hi ,
I am going to using crash utility for kernel issue on my Android device , It
is a ARM cortex chip with Qualcomm platform , So I download crash source
code and built it as ARM target , but looks problem as below , I also attach
build log , thanks a lot for your kindly help ,
Br
Jordan
Not that it's necessarily indicative of the problem at hand, but I am curious
as to how your build came up with a target of "arm-linux-androideabi"?
When building crash with "make target=ARM", the configure command argument
passed to the embedded gdb build is "--target =arm-elf-linux", and on a RHEL or
Fedora x86_64 host, "gnu" gets appended to it, such that the resultant target
is shown like this in the gdb banner:
This GDB was configured as "--host=x86_64-unknown-linux-gnu
--target=arm-elf-linux"...
Is your x86_64 host machine also running an Android environment?
Anyway, it actually made it quite far into the initialization before
it fails with the "crash: cannot hash task_struct entries", which I
believe is caused by a bug in the ARM code here in the unwind_arm.c
function init_module_unwind_tables():
hq_open();
cnt = do_list(&ld);
if (cnt == -1) {
error(WARNING, "UNWIND: failed to gather unwind_table list");
return FALSE;
}
If you put a call to hq_close() here, it should at least continue on a bit farther
in the initialization sequence:
hq_open();
cnt = do_list(&ld);
if (cnt == -1) {
error(WARNING, "UNWIND: failed to gather unwind_table list");
+ hq_close();
return FALSE;
}
I'm not sure what's happening w/respect to the crash_notes and unwind info
gathering. The ARM guys on this list may have some ideas about that?
Also, when posting crash initialization-type failures, can you also attach
a full debug output by putting "-d8" on the crash command line?
Thanks,
Dave
--------------Crash
Log-------------------------------------------------------------
crash 7.0.2
Copyright (C) 2002-2013 Red Hat, Inc.
Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation
Copyright (C) 1999-2006 Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited
Copyright (C) 2006, 2007 VA Linux Systems Japan K.K.
Copyright (C) 2005, 2011 NEC Corporation
Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
This program is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions. Enter "help copying" to see the conditions.
This program has absolutely no warranty. Enter "help warranty" for details.
GNU gdb (GDB) 7.6
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <
http://gnu.org/licenses/gpl.html
>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=x86_64-unknown-linux-gnu
--target=arm-linux-androideabi"...
WARNING: invalid note (n_type != NT_PRSTATUS)
WARNING: could not retrieve crash_notes
crash: invalid list entry: 90a0909
WARNING: UNWIND: failed to gather unwind_table listWARNING: UNWIND: failed to
initialize module unwind tables
please wait... (gathering task table data)
crash: cannot hash task_struct entries
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