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List:       gdb
Subject:    Re: A Question On GDB?
From:       Yao Qi <yao () codesourcery ! com>
Date:       2013-05-09 1:07:37
Message-ID: 518AF6D9.5080502 () codesourcery ! com
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On 05/09/2013 03:57 AM, Thomas Dineen wrote:
>      But in the case shown below GDB dose NOT give me this
> this useful information?
>
>       Now the question: How can I find the crash point in the code?

Type command 'bt' (stack backtrace) when the program gets segfault.

>
> Thanks for the help
> Thomas Dineen
>
> Sun5# gdb --args TA_Bench.sun
> GNU gdb 6.8
> Copyright (C) 2008 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 "i386-pc-solaris2.10"...
> (gdb) r
> Starting program:
> /net/Dineen-Linux4/home/tdineen/Projects/TA_Bench/TA_Bench.sun
>
> warning: Lowest section in /lib/libpthread.so.1 is .dynamic at 00000074
> warning: Lowest section in /lib/libthread.so.1 is .dynamic at 00000074
> [New LWP 1]
> [New LWP 2]
> [LWP 2 exited]
> [New LWP 2]
> Screen Maximum Size: Width 1920 Height 1200
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00000000 in ?? ()
> (gdb)
>

Type 'bt' command here, and you will see a stack backtrace.  Then, type 
'up' command to check each frame once.

-- 
Yao (齐尧)

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