[PATCH 19/19] arm64:ilp32: add ARM64_ILP32 to Kconfig

Yury Norov ynorov at caviumnetworks.com
Fri Jun 17 16:54:28 PDT 2016

From: Andrew Pinski <apinski at cavium.com>

This patch adds the config option for ILP32.

Signed-off-by: Andrew Pinski <Andrew.Pinski at caviumnetworks.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner at theobroma-systems.com>
Signed-off-by: Yury Norov <ynorov at caviumnetworks.com>
Reviewed-by: David Daney <ddaney at caviumnetworks.com>
 arch/arm64/Kconfig | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f5735ec..2897648 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -972,7 +972,7 @@ source "fs/Kconfig.binfmt"
 config COMPAT
-	depends on AARCH32_EL0
+	depends on AARCH32_EL0 || ARM64_ILP32
 config AARCH32_EL0
 	bool "Kernel support for 32-bit EL0"
@@ -994,6 +994,14 @@ 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.
 	def_bool y
 	depends on COMPAT && SYSVIPC

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