linux-kernel - Re: Any tracing mechanism can track the executed instructions of a user process in the kernel?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAJfuBxz6-cF6pYNS0-o_xixoKBzBn5AuXTNOW3x20rXo4Ox5Cw@mail.gmail.com>
Date:   Mon, 18 Oct 2021 15:00:35 -0600
From:   jim.cromie@...il.com
To:     Dongliang Mu <mudongliangabcd@...il.com>
Cc:     kernelnewbies <kernelnewbies@...nelnewbies.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Pavel Skripkin <paskripkin@...il.com>
Subject: Re: Any tracing mechanism can track the executed instructions of a
 user process in the kernel?

On Sun, Oct 17, 2021 at 8:46 PM Dongliang Mu <mudongliangabcd@...il.com> wrote:
>
> Hi all,
>
> I am writing to kindly ask one question: is there any tracing
> mechanism in Linux kernel that can trace all the executed instructions
> of a user process? If this user process is run on different
> processors, traces of this process on different processors should be
> also recorded.
>
> Any comment is welcome.
>

take a look at rr-project.org

what rr does

rr aspires to be your primary C/C++ debugging tool for Linux,
replacing — well, enhancing — gdb. You record a failure once, then
debug the recording, deterministically, as many times as you want. The
same execution is replayed every time.

rr also provides efficient reverse execution under gdb. Set
breakpoints and data watchpoints and quickly reverse-execute to where
they were hit.