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[PATCH 18/18] arm64:ilp32: add ARM64_ILP32 to Kconfig
- From: Yury Norov <ynorov at caviumnetworks dot com>
- To: <arnd at arndb dot de>, <catalin dot marinas at arm dot com>, <linux-arm-kernel at lists dot infradead dot org>, <linux-kernel at vger dot kernel dot org>, <linux-doc at vger dot kernel dot org>, <linux-arch at vger dot kernel dot org>, <libc-alpha at sourceware dot org>
- Cc: <schwidefsky at de dot ibm dot com>, <heiko dot carstens at de dot ibm dot com>, <ynorov at caviumnetworks dot com>, <pinskia at gmail dot com>, <broonie at kernel dot org>, <joseph at codesourcery dot com>, <christoph dot muellner at theobroma-systems dot com>, <bamvor dot zhangjian at huawei dot com>, <szabolcs dot nagy at arm dot com>, <klimov dot linux at gmail dot com>, <Nathan_Lynch at mentor dot com>, <agraf at suse dot de>, <Prasun dot Kapoor at caviumnetworks dot com>, <kilobyte at angband dot pl>, <geert at linux-m68k dot org>, <philipp dot tomsich at theobroma-systems dot com>, <manuel dot montezelo at gmail dot com>, <linyongting at huawei dot com>, <maxim dot kuvyrkov at linaro dot org>, <davem at davemloft dot net>, <zhouchengming1 at huawei dot com>, <cmetcalf at ezchip dot com>, Andrew Pinski <apinski at cavium dot com>, Andrew Pinski <Andrew dot Pinski at caviumnetworks dot com>
- Date: Wed, 17 Aug 2016 14:46:43 +0300
- Subject: [PATCH 18/18] arm64:ilp32: add ARM64_ILP32 to Kconfig
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From: Andrew Pinski <apinski@cavium.com>
This patch adds the config option for ILP32.
Signed-off-by: Andrew Pinski <Andrew.Pinski@caviumnetworks.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
---
arch/arm64/Kconfig | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 3d46250..e4042a9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -991,7 +991,7 @@ 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"
@@ -1013,6 +1013,14 @@ config AARCH32_EL0
If you want to execute 32-bit userspace applications, say Y.
+config ARM64_ILP32
+ bool "Kernel support for ILP32"
+ select COMPAT
+ 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. See Documentation/arm64/ilp32.txt for details.
+
config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
--
2.7.4