linux-kernel - Re: [PATCH 1/2] tracing: Remove "__attribute_

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: <20250711104436.df72f612ad78f06ec96e63f7@kernel.org>
Date: Fri, 11 Jul 2025 10:44:36 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] tracing: Remove "__attribute__()" from the type
 field of event format

On Thu, 10 Jul 2025 09:53:27 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> On Thu, 10 Jul 2025 22:45:20 +0900
> Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:
> 
> > > And it doesn't free after allocation because it only does the
> > > allocation for events that will never be freed. For modules, it
> > > registers the allocated string so it will be freed on unload.  
> > 
> > What happen if the tracepoint in module has the __attribute__?
> > (or enum etc?)
> 
> It adds the string to a linked list via add_str_to_module(). When the
> module is unloaded, it searches the link list "module_strings" for all
> the strings registered under that module and frees it.

OK, thanks for the clarification!

> 
> See trace_module_remove_events().

Let me check it.

Thanks!

> 
> -- Steve


-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>