linux-kernel - Re: [PATCH] scripts/gdb: relax requirement on symlink location

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: <f5707bef-a9d9-080c-e30b-814fccd7dce7@siemens.com>
Date:   Mon, 17 Oct 2016 17:45:04 +0200
From:   Jan Kiszka <jan.kiszka@...mens.com>
To:     Tobias Waldekranz <tobias@...dekranz.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scripts/gdb: relax requirement on symlink location

On 2016-10-14 12:07, Tobias Waldekranz wrote:
> The current construct for inserting the `scripts/gdb/` directory into
> the python path requires `vmlinux-gdb.py` to be symlinked in the root of
> the kernel build tree.
> 
> By first resolving the symlink and inserting that path, the symlink can
> be placed in an arbitrary directory.

Can you provide a brief word on what this would enable (i.e. why we want
it)?

> 
> Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com>
> ---
>  scripts/gdb/vmlinux-gdb.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py
> index ce82bf5..a9029f4 100644
> --- a/scripts/gdb/vmlinux-gdb.py
> +++ b/scripts/gdb/vmlinux-gdb.py
> @@ -13,7 +13,7 @@
>  
>  import os
>  
> -sys.path.insert(0, os.path.dirname(__file__) + "/scripts/gdb")
> +sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)))
>  
>  try:
>      gdb.parse_and_eval("0")
> 

Unfortunately, this breaks with modules that are generated, namely
constants.py. They are located in the build dir. Please suggest a
version that was tested successfully against both the existing and the
new use case.

Thanks,
Jan

-- 
Siemens AG, Corporate Technology, CT RDA ITP SES-DE
Corporate Competence Center Embedded Linux