From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Wed, 14 Jun 2017 09:25:18 +0000 (+0100)
Subject: ARM: always enable AEABI for ARMv6+
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=494609701e06a0040c0f4042c80fac4e8b5f0ab8;p=linux.git

ARM: always enable AEABI for ARMv6+

Always enable AEABI for ARMv6+, as these use the double-word exclusives
which must be passed an even register to avoid errors such as:

/tmp/ccG2rCwe.s:905: Error: even register required -- `ldrexd r5,r6,[r7]'
/tmp/ccG2rCwe.s:909: Error: even register required -- `strexd sl,r3,r4,[r7]'

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a208bfe367b55..1cd85410a89a7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1531,7 +1531,6 @@ config THUMB2_KERNEL
 	bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
 	depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
 	default y if CPU_THUMBONLY
-	select AEABI
 	select ARM_ASM_UNIFIED
 	select ARM_UNWIND
 	help
@@ -1594,7 +1593,8 @@ config ARM_PATCH_IDIV
 	  code to do integer division.
 
 config AEABI
-	bool "Use the ARM EABI to compile the kernel"
+	bool "Use the ARM EABI to compile the kernel" if !CPU_V7 && !CPU_V7M && !CPU_V6 && !CPU_V6K
+	default CPU_V7 || CPU_V7M || CPU_V6 || CPU_V6K
 	help
 	  This option allows for the kernel to be compiled using the latest
 	  ARM ABI (aka EABI).  This is only useful if you are using a user