From nobody Tue Sep 16 13:47:29 2025 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 46025C53210 for ; Mon, 2 Jan 2023 12:50:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232966AbjABMub (ORCPT ); Mon, 2 Jan 2023 07:50:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233029AbjABMuP (ORCPT ); Mon, 2 Jan 2023 07:50:15 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA0F15FE5 for ; Mon, 2 Jan 2023 04:50:14 -0800 (PST) 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 2FE4160EBD for ; Mon, 2 Jan 2023 12:50:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23D89C433EF; Mon, 2 Jan 2023 12:50:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1672663813; bh=J83fkE2BSX1IZ8EPpp2Ze1Betbt1ngFYzvqYU3Slg3I=; h=From:To:Cc:Subject:Date:From; b=PPDBfr5Q0Btm6wpX2S6XhgndtWGV2Os9tV79H12FEylL9hFMqxL/zQdrOq1trGWLm gRAVcY+mq9vRNuQaNrvCwpsKhvii6iyB4/kanb9voWAZ/1luK0OPaXkduDz5w0vOL8 Iyz5rKy4DnfgPaP+N8tmZS/bXFNOk0uku9LY9/I/QZ0WKAatCKwzSXOwn+jQgWs9eP sYPvVIeTIyUL6tlBfN06U7dZC7FLK59eCIdbuV0Wq+YFpEEQreYutZqohZqkaArG0b xoXau46gBd+zEKGd9QsTuNP9V2nrrcnJ+gcw97PEGEWH7QBzG+j2BaZAMlUQTp4nH5 Cvx01y0dOvB0Q== From: Conor Dooley To: palmer@dabbelt.com Cc: conor@kernel.org, Conor Dooley , masahiroy@kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v1] RISC-V: define RUNTIME_DISCARD_EXIT Date: Mon, 2 Jan 2023 12:49:37 +0000 Message-Id: <20230102124936.1363533-1-conor@kernel.org> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1063; i=conor.dooley@microchip.com; h=from:subject; bh=J5y6smCcDKVWS6LKYLyNRzrIDBkYbbewNOPjlfn0gJc=; b=owGbwMvMwCFWscWwfUFT0iXG02pJDMmbLt0LWGd/VLlihUrL4xtTzjL+7Jc0k9//YUHQ145tCy9P uvnLpaOUhUGMg0FWTJEl8XZfi9T6Py47nHvewsxhZQIZwsDFKQATWf+dkeFnypYXJ+QmBx5POfhfMT JEdPad6Ksn/s1V4p1ux+z62nojI8O01LyQm9krn5g+7WHW0VcNeCJ746XGuSP/MwXm9r37fZwZAA== X-Developer-Key: i=conor.dooley@microchip.com; a=openpgp; fpr=F9ECA03CF54F12CD01F1655722E2C55B37CF380C Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Conor Dooley Masahiro noted: > arch/riscv/kernel/vmlinux.lds.S clearly says: > /* we have to discard exit text and such at runtime, not link time */ > [...] > so riscv should define RUNTIME_DISCARD_EXIT like x86, arm64. As things stand, no ill comes of this - but if "DISCARDS" was to be re-ordered in the linker script, linking would fail. Do as suggested by Masahiro and define RUNTIME_DISCARD_EXIT. Link: https://lore.kernel.org/all/CAK7LNAT39aZEw=3D0209ovYZ2kxtOaA2a51=3DXD= 9=3DLqYHjkTOEK4g@mail.gmail.com/ Suggested-by: Masahiro Yamada Signed-off-by: Conor Dooley --- arch/riscv/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.ld= s.S index 4e6c88aa4d87..07c19f2a288c 100644 --- a/arch/riscv/kernel/vmlinux.lds.S +++ b/arch/riscv/kernel/vmlinux.lds.S @@ -5,6 +5,7 @@ */ =20 #define RO_EXCEPTION_TABLE_ALIGN 4 +#define RUNTIME_DISCARD_EXIT =20 #ifdef CONFIG_XIP_KERNEL #include "vmlinux-xip.lds.S" --=20 2.39.0