From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yury Norov Subject: [PATCH 23/23] arm64:ilp32: add ARM64_ILP32 to Kconfig Date: Tue, 24 May 2016 03:04:52 +0300 Message-ID: <1464048292-30136-24-git-send-email-ynorov@caviumnetworks.com> References: <1464048292-30136-1-git-send-email-ynorov@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-bl2on0060.outbound.protection.outlook.com ([65.55.169.60]:4077 "EHLO na01-bl2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751849AbcEXAGg (ORCPT ); Mon, 23 May 2016 20:06:36 -0400 In-Reply-To: <1464048292-30136-1-git-send-email-ynorov@caviumnetworks.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: arnd@arndb.de, catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, libc-alpha@sourceware.org Cc: schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, ynorov@caviumnetworks.com, pinskia@gmail.com, broonie@kernel.org, joseph@codesourcery.com, christoph.muellner@theobroma-systems.com, bamvor.zhangjian@huawei.com, szabolcs.nagy@arm.com, klimov.linux@gmail.com, Nathan_Lynch@mentor.com, agraf@suse.de, Prasun.Kapoor@caviumnetworks.com, kilobyte@angband.pl, geert@linux-m68k.org, philipp.tomsich@theobroma-systems.com, Andrew Pinski , Andrew Pinski From: Andrew Pinski This patch adds the config option for ILP32. Signed-off-by: Andrew Pinski Signed-off-by: Philipp Tomsich Signed-off-by: Christoph Muellner Signed-off-by: Yury Norov Reviewed-by: David Daney --- arch/arm64/Kconfig | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0bb7adc..765d7c2 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -926,12 +926,13 @@ source "fs/Kconfig.binfmt" config COMPAT bool - depends on AARCH32_EL0 + depends on AARCH32_EL0 || ARM64_ILP32 config AARCH32_EL0 bool "Kernel support for 32-bit EL0" def_bool y depends on ARM64_4K_PAGES || EXPERT + select COMPAT select HAVE_UID16 select OLD_SIGSUSPEND3 select COMPAT_OLD_SIGACTION @@ -947,6 +948,15 @@ config AARCH32_EL0 If you want to execute 32-bit userspace applications, say Y. +config ARM64_ILP32 + bool "Kernel support for ILP32" + select COMPAT + select COMPAT_WRAPPER + help + This option enables support for AArch64 ILP32 user space. ILP32 + is an ABI where long and pointers are 32bits but it uses the AARCH64 + instruction set. + config SYSVIPC_COMPAT def_bool y depends on COMPAT && SYSVIPC -- 2.5.0