From patchwork Fri Mar 20 10:20:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Michal_Such=C3=A1nek?= X-Patchwork-Id: 1258808 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48kKqp6MTXz9sPF for ; Fri, 20 Mar 2020 21:33:26 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=suse.de Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48kKqp5dq6zDrh9 for ; Fri, 20 Mar 2020 21:33:26 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=suse.de (client-ip=195.135.220.15; helo=mx2.suse.de; envelope-from=msuchanek@suse.de; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=suse.de Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 48kKY52m1QzDrfd for ; Fri, 20 Mar 2020 21:20:41 +1100 (AEDT) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 76C71B309; Fri, 20 Mar 2020 10:20:38 +0000 (UTC) From: Michal Suchanek To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v12 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default. Date: Fri, 20 Mar 2020 11:20:17 +0100 Message-Id: <41393d6e895b0d3a47ee62f8f51e1cf888ad6226.1584699455.git.msuchanek@suse.de> X-Mailer: git-send-email 2.23.0 In-Reply-To: References: <20200225173541.1549955-1-npiggin@gmail.com> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Gustavo Luiz Duarte , Peter Zijlstra , Sebastian Andrzej Siewior , linux-kernel@vger.kernel.org, Paul Mackerras , Jiri Olsa , Rob Herring , Michael Neuling , Mauro Carvalho Chehab , Masahiro Yamada , Nayna Jain , Alexander Shishkin , Ingo Molnar , Allison Randal , Jordan Niethe , Michal Suchanek , Valentin Schneider , Arnd Bergmann , Arnaldo Carvalho de Melo , Alexander Viro , Jonathan Cameron , Namhyung Kim , Thomas Gleixner , Andy Shevchenko , Hari Bathini , Greg Kroah-Hartman , Nicholas Piggin , Claudio Carvalho , Eric Richter , "Eric W. Biederman" , linux-fsdevel@vger.kernel.org, "David S. Miller" , Thiago Jung Bauermann Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" On bigendian ppc64 it is common to have 32bit legacy binaries but much less so on littleendian. Signed-off-by: Michal Suchanek Reviewed-by: Christophe Leroy --- v3: make configurable --- arch/powerpc/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 497b7d0b2d7e..29d00b3959b9 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -264,8 +264,9 @@ config PANIC_TIMEOUT default 180 config COMPAT - bool - default y if PPC64 + bool "Enable support for 32bit binaries" + depends on PPC64 + default y if !CPU_LITTLE_ENDIAN select COMPAT_BINFMT_ELF select ARCH_WANT_OLD_COMPAT_IPC select COMPAT_OLD_SIGACTION