[PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig

From: Yury Norov
Date: Wed Mar 01 2017 - 14:26:32 EST


From: Andrew Pinski <apinski@xxxxxxxxxx>

This patch adds the config option for ILP32.

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

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d059063..887f391 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1043,7 +1043,7 @@ 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"
@@ -1065,6 +1065,14 @@ 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.
+
config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
--
2.7.4