linux-kernel - Re: [PATCH] tracing: Disable branch profiling in noinstr code

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

Message-ID: <20250321142826.65a160bf@batman.local.home>
Date: Fri, 21 Mar 2025 14:28:26 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
 linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>, Peter
 Zijlstra <peterz@...radead.org>, Masahiro Yamada <masahiroy@...nel.org>
Subject: Re: [PATCH] tracing: Disable branch profiling in noinstr code

On Fri, 21 Mar 2025 10:21:34 -0700
Josh Poimboeuf <jpoimboe@...nel.org> wrote:

> I *basically* did that, albeit in more of a surgical manner by editing a
> lot of the makefiles in arch/x86/*/.
> 
> Let me see if I can figure out how to do that more broadly at the
> arch/x86 level.

Ah, I thought there was a way to do it recursively, but I don't see a
way to do that.

Masahiro, do you know of a way that we can add a CFLAGS option to a
directory and all its siblings without modifying all the Makefiles?

-- Steve