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From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Tue, 5 May 2020 13:53:23 +0100
Message-ID: <CAH6eHdR8F7d_NC81zmWZrVg6pDzA-qG9r9ncOXo9Bn1zarKzOQ@mail.gmail.com>
Subject: Re: Help: debug a binary
To: Kunal Chauhan <atkunalchauhan@gmail.com>
Cc: gcc-help <gcc-help@gcc.gnu.org>
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On Tue, 5 May 2020 at 12:23, Kunal Chauhan <atkunalchauhan@gmail.com> wrote:
>
> Hi Team,

This is the mailing list for GCC, not GDB. Questions about how to use
GDB or what GDB messages mean are off-topic here.

>
> Help for finding and understanding the below line coming in gdb : what exactly they are saying ?

Looks like it's saying that your program's stack looks corrupt. You
probably have a memory corruption bug. Try using valgrind to run it,
or recompile with -fsanitize=undefined and/or -fsanitize=address and
see if they report errors when you run it.

>
> #0  0xb66e8ee4 in strlen () from /lib/libc.so.6
>
> [Current thread is 1 (LWP 2084)]
>
> (gdb) bt full
>
> #0  0xb66e8ee4 in strlen () from /lib/libc.so.6
>
> No symbol table info available.
>
> #1  0xb6da3854 in ?? () from /opt/qcom/lib/libcurl.so.4
>
> No symbol table info available.
>
> #2  0x05b40000 in ?? ()
>
> No symbol table info available.
>
> Backtrace stopped: previous frame identical to this frame (corrupt stack?)
>
>
> On Wed, Apr 29, 2020 at 11:21 PM Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
>>
>> On Wed, 29 Apr 2020 at 18:23, Kunal Chauhan via Gcc-help
>> <gcc-help@gcc.gnu.org> wrote:
>> >
>> > Hi team,
>> >
>> > How can I debug my binary.
>>
>> Compile with the -g flag and use a debugger.
>>
>> Search the web for "using gdb".
>
>
>
> --
> Thanks with Regards!
>
> Kunal Chauhan
> Mob:09813614826
> Mob:08860397903
> E-mail:atkunalchauhan@gmail.com
>