From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 145BA13A244; Mon, 7 Jul 2025 19:49:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751917799; cv=none; b=W3dvxY2sp6NlG+tpkHES+6IGpaPw23L/EDXN0Mtl5zC/lk/Lu9xjO8BfgdJCoXMx2t3PVhPCzeq3pD56WVGHLTZ7dYi6stRHMN7/zdJfXBvMo/LyujHarghrsFiRKjmthIWX6OzvSloVcwcVXw1WY0DNjk++iz4s+qghn94Cozs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751917799; c=relaxed/simple; bh=C/pxVwNNcO2P81TrbKVfUEX/hAn4awsUloccI8+e050=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=aUvt+kXLC4/1edT6/biAkjXSbvrSJ7jSfhI4opxOiFfCVwH/xXoMe89DJUcYgEUgfvIXhGJOrkpcetMGBpZ8iu+thjDF9H/bgaR5JkEEy/g5UeJFVZLPabTHF9CLvUAmxaHV4wA6ZBjHyd9UlIQs7KblYRJc7wIauYH5iD9BSqo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id BBABA128655; Mon, 7 Jul 2025 19:42:50 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf06.hostedemail.com (Postfix) with ESMTPA id 5AB922000E; Mon, 7 Jul 2025 19:42:46 +0000 (UTC) Date: Mon, 7 Jul 2025 15:42:45 -0400 From: Steven Rostedt To: Mathieu Desnoyers Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, x86@kernel.org, Masami Hiramatsu , Josh Poimboeuf , Peter Zijlstra , Ingo Molnar , Jiri Olsa , Namhyung Kim , Thomas Gleixner , Andrii Nakryiko , Indu Bhagat , "Jose E. Marchesi" , Beau Belgrave , Jens Remus , Linus Torvalds , Andrew Morton , Jens Axboe , Florian Weimer Subject: Re: [PATCH v12 01/14] unwind_user: Add user space unwinding API Message-ID: <20250707154245.7eeeb448@batman.local.home> In-Reply-To: <12c620ea-4bee-4019-8143-8ecbaeeafc11@efficios.com> References: <20250701005321.942306427@goodmis.org> <20250701005450.721228270@goodmis.org> <12c620ea-4bee-4019-8143-8ecbaeeafc11@efficios.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: uffcqguk36b5rtzjb97yrcmziuh1i78n X-Rspamd-Server: rspamout07 X-Rspamd-Queue-Id: 5AB922000E X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1+hZRXtt2n9xM25ZjI5RbURs4uzubwh+r8= X-HE-Tag: 1751917366-491360 X-HE-Meta: U2FsdGVkX1+TlfiLJboUxWFVhq/aBl2bQgU922t12rSyi1JWsFcrAHFLerzbTnq0xq41SHga/xi2kKB4hiRLNrK7Sr/df8bn4Ok62X/V3VK/V3SswAQzMX9VCDljJDlt7APU+uY5E1je+9lfT+EYlIA4gPiazZCNjkMqgqs0aHjqNHR9km2DNUlKiZna5qWTOEtyUxQ2vMYb86+abAM+c1AsOtBnALmMrkH0DfjCFVvUMNArbVac5C55LarMjElCob+NOedjbvXxRkqbN3v6NiL2gdG8qQWXdxCGbT6cDbbjTcUvnFsDoSCTTgP+Cp9IUDWchw8XOXUjEDadYhZZbyb72eQ9VbN+QrFcopOe0qhoKDnLwNsyka8qd3KG6kFL On Fri, 4 Jul 2025 14:20:54 -0400 Mathieu Desnoyers wrote: > > None of the structures introduced will be exposed to user space tooling. > > Would it be possible to make those unwind APIs EXPORT_SYMBOL_GPL > so they are available for GPL kernel modules ? I'm OK with that, but others tend to complain about EXPORT_SYMBOL_GPL for functions not used by modules in the kernel. But I personally feel that LTTng should get an exception for that rule ;-) -- Steve