Thread (59 messages) 59 messages, 12 authors, 2019-07-09
STALE2521d REVIEWED: 1 (0M)
Revisions (4)
  1. v5 [diff vs current]
  2. v6 [diff vs current]
  3. v6 [diff vs current]
  4. v9 current

[PATCH 23/24] arm64:ilp32: add ARM64_ILP32 to Kconfig

From: Yury Norov <hidden>
Date: 2018-05-16 08:23:51
Also in: linux-arch, linux-arm-kernel, linux-doc, lkml
Subsystem: arm64 port (aarch64 architecture), the rest · Maintainers: Catalin Marinas, Will Deacon, Linus Torvalds

From: Andrew Pinski <redacted>

This patch adds the config option for ILP32.

Signed-off-by: Andrew Pinski <redacted>
Signed-off-by: Philipp Tomsich <redacted>
Signed-off-by: Christoph Muellner <redacted>
Signed-off-by: Yury Norov <redacted>
Reviewed-by: David Daney <redacted>
---
 arch/arm64/Kconfig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0685754a9f7b..a3134b8e3123 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1226,7 +1226,7 @@ source "fs/Kconfig.binfmt"
 
 config COMPAT
 	def_bool y
-	depends on AARCH32_EL0
+	depends on AARCH32_EL0 || ARM64_ILP32
 
 config AARCH32_EL0
 	bool "Kernel support for 32-bit EL0"
@@ -1247,6 +1247,13 @@ config AARCH32_EL0
 
 	  If you want to execute 32-bit userspace applications, say Y.
 
+config ARM64_ILP32
+	bool "Kernel support for ILP32"
+	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
-- 
2.17.0
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