From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 6B5E52566 for ; Fri, 19 Jul 2024 01:21:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721352115; cv=none; b=Q3734tyeuU5kGmrkzb6X+G10Dzh3GW72qh5kLC/7IpHc/VLbMYbdMWZ7zqULpSae6lx4SGjS3cJiH6ASXxpTHTJgc4HfsXkLoA30aiPlkIBcU3qIdEOpqRWcSNyXCq1s35PYxoUNoxnmda7p5kgUNIqX/GnbgAsVLgY2Hi/KyYA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721352115; c=relaxed/simple; bh=x3kEOynn+qytEGiRnI4FutZo1MBFVOPLc2E5HKN0Tgk=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=dADcHXPMSX8EJz5iFRKCJ/9+8WFRRQN54o4GAFjrij6bw3s+bkb5EKPyM0VvngAIbgSpij/qiL0gMGX1Ecy7UUiL/HjmKm8h1fdgXQjnJ/xsPA+ZkLD7R0PHZUiu8eTJoQsWBY8LVTLrnVWL//YXWQkaVEkj5unG2Uaz1fyxStc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Yipn0unD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Yipn0unD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8AEDC4AF09; Fri, 19 Jul 2024 01:21:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721352115; bh=x3kEOynn+qytEGiRnI4FutZo1MBFVOPLc2E5HKN0Tgk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Yipn0unDa4dhXTBt34nlfM703lIJK6NWdRyftjVFgk10WSwEux/sHwz0jCNrP1gHl TEzmsFRbpC0pLuyq7kEj0DSKhZnso0qDLpI7F2ZrGibRkPQChR7jecsTBUZKdER0wi 1IJATBNUq99MMtfEMBFmaRIGQVFqRsXSdXjukZ5nGJoK9UjnWAZuLq1DMg0QF8Ei2q MsGl0NgYuAedKcA3HcJDB5uDk+iM+F5ZDYKkWIyt/LIkPJT5StN1/G7xEj4It0nfXV 4O51edTUNQ+fcGJhRYgD1KeI8t8ruLwiqayOrGJIQk1O/pm6yij7hNV8D0bCWgYAz9 RcZy/ZVRjP4mA== Date: Fri, 19 Jul 2024 10:21:50 +0900 From: Masami Hiramatsu (Google) To: Stephen Rothwell Cc: Linus Torvalds , "Masami Hiramatsu (Google)" , Andrii Nakryiko , Jeff Johnson , Jiri Olsa , Steven Rostedt , linux-kernel@vger.kernel.org Subject: Re: [GIT PULL] probes: Updates for v6.11 Message-Id: <20240719102150.197c7fc7459459a8c439d972@kernel.org> In-Reply-To: <20240719102824.1e086a40@canb.auug.org.au> References: <20240716234445.a17a40e8d3d7b4ba5cef949e@kernel.org> <20240719102824.1e086a40@canb.auug.org.au> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-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 On Fri, 19 Jul 2024 10:28:24 +1000 Stephen Rothwell wrote: > Hi Linus, > > On Tue, 16 Jul 2024 23:44:45 +0900 Masami Hiramatsu (Google) wrote: > > > > Probes updates for v6.11: > > > > Uprobes: > > - x86/shstk: Make return uprobe work with shadow stack. > > - Add uretprobe syscall which speeds up the uretprobe 10-30% faster. This > > syscall is automatically used from user-space trampolines which are > > generated by the uretprobe. If this syscall is used by normal > > user program, it will cause SIGILL. Note that this is currently only > > implemented on x86_64. > > (This also has 2 fixes for adjusting the syscall number to avoid conflict > > with new *attrat syscalls.) > > But another fix that I have been carrying was missed: > > https://lore.kernel.org/lkml/20240717132155.6ca2ce47@canb.auug.org.au/ > > Just the added change to scripts/syscall.tbl (and obviously needs > adjusting because the *xattrat* syscalss have not been merged yet). Ah, I thought that was for helping Linus when he merge the commits. And actually, this number is used in other part (e.g. testing), I added it. When xattarat syscalls are merged (until -rc1?), this difference is solved, isn't it? Thank you, -- Masami Hiramatsu (Google)