[PATCH] ARM: always enable AEABI for ARMv6+
From: robin.murphy@arm.com (Robin Murphy)
Date: 2017-06-22 09:59:00
On 22/06/17 10:12, Russell King wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- arch/arm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 270ab2549def..78e42f691270 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig@@ -1542,7 +1542,6 @@ 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@@ -1605,7 +1604,8 @@ 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 !THUMB2_KERNEL && !CPU_V7 && !CPU_V7M && !CPU_V6 && !CPU_V6K
Isn't !THUMB2_KERNEL already a strict subset of !CPU_V7 && !CPU_V7M? Robin.
+ default THUMB2_KERNEL || 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