From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7E6DC77B7D for ; Wed, 10 May 2023 07:09:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236235AbjEJHJc (ORCPT ); Wed, 10 May 2023 03:09:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236424AbjEJHJV (ORCPT ); Wed, 10 May 2023 03:09:21 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06B3355B9; Wed, 10 May 2023 00:09:15 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8A0D362D6E; Wed, 10 May 2023 07:09:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D514C433D2; Wed, 10 May 2023 07:09:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683702553; bh=+clB4KgowCdBV0mrjLZYn4tmrVpCL43g49dGwUiETu4=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=NHPuozW3dvsESE/msZt0irjjsu/dRADQ1xYQSJhylIncQnOybYMKXulAUagHRx9Ji ET5SSGdHhQYzxHr8YrjVSMzEoqIcOhLalVoNaz2SOf8FJ0IntrSZTwdQ7s/rJwMlw1 jngEZWbe9zJAbezg/bFvX6IJAmIUC+J4iJI6CRHWBRI4Oci7P6Mo9MFniuIMsxcERZ tC9Kd4HZwZ/Yi3+VfdCKq6qJjelMpjrIc4uENdoX7XJHeuRgHU7y+InHSkuJnTnyOQ 4JUyZvgfcq8Rv7BGR1emIpGw1xT0tYi3Q2K+1RF/D88jnO/5cZq2Gh/ePugcJ2n8u8 gCc5Er1UP6EMQ== From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= To: Song Shuai , paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, rostedt@goodmis.org, mhiramat@kernel.org, mark.rutland@arm.com, guoren@kernel.org, e.shatokhin@yadro.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Song Shuai Subject: Re: [PATCH V8 1/4] riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY In-Reply-To: <20230324033342.3177979-2-suagrfillet@gmail.com> References: <20230324033342.3177979-1-suagrfillet@gmail.com> <20230324033342.3177979-2-suagrfillet@gmail.com> Date: Wed, 10 May 2023 09:09:10 +0200 Message-ID: <87a5ycfysp.fsf@all.your.base.are.belong.to.us> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Song Shuai writes: > In RISC-V, -fpatchable-function-entry option is used to support > dynamic ftrace in this commit afc76b8b8011 ("riscv: Using > PATCHABLE_FUNCTION_ENTRY instead of MCOUNT"). So recordmcount > don't have to be called to create the __mcount_loc section before > the vmlinux linking. > > Here selects FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to tell > Makefile not to run recordmcount. > > Link: https://lore.kernel.org/linux-riscv/CAAYs2=3Dj3Eak9vU6xbAw0zPuoh00r= h8v5C2U3fePkokZFibWs2g@mail.gmail.com/T/#t > Link: https://lore.kernel.org/linux-riscv/Y4jtfrJt+%2FQ5nMOz@spud/ > Signed-off-by: Song Shuai > Tested-by: Guo Ren > Signed-off-by: Guo Ren Acked-by: Bj=C3=B6rn T=C3=B6pel