From patchwork Fri Jan 4 00:37:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukas Auer X-Patchwork-Id: 1020557 X-Patchwork-Delegate: uboot@andestech.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=aisec.fraunhofer.de Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 43W5X96Zktz9s7T for ; Fri, 4 Jan 2019 11:39:37 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id 86562C21D8E; Fri, 4 Jan 2019 00:39:11 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 7F755C21DB3; Fri, 4 Jan 2019 00:38:15 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id E7500C21D72; Fri, 4 Jan 2019 00:38:09 +0000 (UTC) Received: from mail-edgeDD24.fraunhofer.de (mail-edgeDD24.fraunhofer.de [192.102.167.24]) by lists.denx.de (Postfix) with ESMTPS id 1334EC21DFA for ; Fri, 4 Jan 2019 00:38:05 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2FCAAAO4PJb/xoBYJliGQEBAQEBAQEBAQEBAQcBAQEBAQGBZYIEgVY5jG+LHYsUkCkNhGwCg24iOBIBAwEBAgEBAgICaRwMhT4GMgFGEFEhHBoGDgWDIYFqAxQBqHyHdg2CGQkBh1CEK4FXP4Z5gnWFDgKLCJQ5LgcCgRGBCQSLXoMgCxiJWIcljkGJVYFdIoFVMxokgzuGAYpaPgEyAY5bAQE X-IPAS-Result: A2FCAAAO4PJb/xoBYJliGQEBAQEBAQEBAQEBAQcBAQEBAQGBZYIEgVY5jG+LHYsUkCkNhGwCg24iOBIBAwEBAgEBAgICaRwMhT4GMgFGEFEhHBoGDgWDIYFqAxQBqHyHdg2CGQkBh1CEK4FXP4Z5gnWFDgKLCJQ5LgcCgRGBCQSLXoMgCxiJWIcljkGJVYFdIoFVMxokgzuGAYpaPgEyAY5bAQE X-IronPort-AV: E=Sophos;i="5.56,253,1539640800"; d="scan'208";a="22609582" Received: from mail-mtaka26.fraunhofer.de ([153.96.1.26]) by mail-edgeDD24.fraunhofer.de with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Jan 2019 01:38:03 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0A9AACO3/Jb/xBhWMBiGQEBAQEBAQEBAQEBAQcBAQEBAQGBZYM5ITmMb5YxkCkNhGwChA84EgEDAQECAQECbRwMhT0GMgFGEFEhHBoGDgWDIYFqAxWodod2DYIZCQGHUIYCP4Z5gnWFDgKLCJQ5LgcCgRGBCQSLXoMgCxiJWIcljkGJVYFdIYFVMxokgzuGAYpaPgMwAY5bAQE X-IronPort-AV: E=Sophos;i="5.56,253,1539640800"; d="scan'208";a="25618106" Received: from fgdemucivp01ltm.xch.fraunhofer.de (HELO FGDEMUCIMP12EXC.ads.fraunhofer.de) ([192.88.97.16]) by mail-mtaKA26.fraunhofer.de with ESMTP/TLS/AES256-SHA; 04 Jan 2019 01:38:04 +0100 Received: from localhost.de (10.80.233.51) by FGDEMUCIMP12EXC.ads.fraunhofer.de (10.80.232.43) with Microsoft SMTP Server (TLS) id 14.3.408.0; Fri, 4 Jan 2019 01:38:05 +0100 From: Lukas Auer To: Date: Fri, 4 Jan 2019 01:37:33 +0100 Message-ID: <20190104003734.28052-7-lukas.auer@aisec.fraunhofer.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190104003734.28052-1-lukas.auer@aisec.fraunhofer.de> References: <20190104003734.28052-1-lukas.auer@aisec.fraunhofer.de> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-11.0.0.4179-8.200.1013-24328.005 X-TM-AS-Result: No--2.952100-8.000000-31 X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No Cc: Greentime Hu Subject: [U-Boot] [PATCH v2 6/7] riscv: support standalone applications on RV64I systems X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" Add an implementation of EXPORT_FUNC() for RV64I systems to support them in standalone applications. Signed-off-by: Lukas Auer Reviewed-by: Bin Meng Tested-by: Bin Meng --- Changes in v2: None examples/standalone/stubs.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index f37d209da6..0827bde35e 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -176,6 +176,16 @@ gd_t *global_data; /* * gp holds the pointer to the global_data. t0 is call clobbered. */ +#ifdef CONFIG_ARCH_RV64I +#define EXPORT_FUNC(f, a, x, ...) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" ld t0, %0(gp)\n" \ +" ld t0, %1(t0)\n" \ +" jr t0\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t0"); +#else #define EXPORT_FUNC(f, a, x, ...) \ asm volatile ( \ " .globl " #x "\n" \ @@ -184,6 +194,7 @@ gd_t *global_data; " lw t0, %1(t0)\n" \ " jr t0\n" \ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t0"); +#endif #elif defined(CONFIG_ARC) /* * r25 holds the pointer to the global_data. r10 is call clobbered.