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 D15B845008; Wed, 16 Oct 2024 22:15:25 +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=1729116926; cv=none; b=u62JrtF+zgUcMOjQBPumMIvKTqEiErFPdDY929Y8c2HLyaXjwGoewnuCeFpXSCATNn5dQ0wgLT+zzfrlDPjkIxq0BfmAgCXeLPpDO/PaZNT4GbZh3tTB15HSO9e839MgoB+xI6rNmOVaO8FRvktN8yYQJMiHgP4cdPSae2O8Bq8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729116926; c=relaxed/simple; bh=kTS3L4lI/mgAWvx8mcJRAk114PqILHt4bMeyJslU/4o=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=SowXgZYRbfHXlERJteAy0gC6+PXRf3V2P+QzNfLAYb4JEfl1vRk931wrBTY8KAwbAj7GjcFNMIa9Y2u2NSF8wxFIjTXhqiExzuWJJ5y7992rmYRXqEHvJPbW7/SDGwVvgipsuFp4btIoIBlJo3E+5ksHepckIehh6y86hT/bXYc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oZ7EFYQG; 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="oZ7EFYQG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8FDCC4CEC5; Wed, 16 Oct 2024 22:15:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729116925; bh=kTS3L4lI/mgAWvx8mcJRAk114PqILHt4bMeyJslU/4o=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=oZ7EFYQGKJwCD1UnwDRHAzfkYRWKUr6T3xWM4xAxq5UMLPLziit8tzepdK7RQE8le NnDb7RtAIl1Fq/uiX2rvNdb38dfuFsaM1A1C8yVwNBtjyuMbo6QryYta2MzqVe55LK mXtfxAwLZHx+Bp5TUduVGGsgZRYKQVATA4Y1gXNe7eOs+DdWPErXodiMVx09oCG1Ko c4E9yTD0ksPDbY3YY3Cbkklgg7o8edV9+iJ8G0WkDyZuPh3tntPDWfy2P4p98APcVL Nv1447Is9HSU19y04eSTaerhVGN89TlnITW7fmN0yVzYe0innvCvkNywzGodmw9SXC eNCSX7rWRcfTA== Date: Thu, 17 Oct 2024 07:15:16 +0900 From: Masami Hiramatsu (Google) To: Steven Rostedt Cc: Alexei Starovoitov , Florent Revest , linux-trace-kernel@vger.kernel.org, LKML , Martin KaFai Lau , bpf , Alexei Starovoitov , Jiri Olsa , Alan Maguire , Mark Rutland , linux-arch@vger.kernel.org, Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Madhavan Srinivasan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Mathieu Desnoyers Subject: Re: [PATCH v17 01/16] function_graph: Pass ftrace_regs to entryfunc Message-Id: <20241017071516.684c8cf6490f26a42065994d@kernel.org> In-Reply-To: <20241016095325.34176fc9@gandalf.local.home> References: <172904026427.36809.516716204730117800.stgit@devnote2> <172904027515.36809.1961937054923520469.stgit@devnote2> <20241016095325.34176fc9@gandalf.local.home> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-arch@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 Wed, 16 Oct 2024 09:53:25 -0400 Steven Rostedt wrote: > On Wed, 16 Oct 2024 09:57:55 +0900 > "Masami Hiramatsu (Google)" wrote: > > > From: Masami Hiramatsu (Google) > > > > Pass ftrace_regs to the fgraph_ops::entryfunc(). If ftrace_regs is not > > available, it passes a NULL instead. User callback function can access > > some registers (including return address) via this ftrace_regs. > > BTW, you can use "fgraph:" for short. It makes the subject easier to read. > I've been using that instead of "function_graph:" lately. OK, I'll use it in the next version. Thank you, > > -- Steve -- Masami Hiramatsu (Google)