Thumb-2: Add Thumb-2 support to the build files

This patch adds the necessary entries to the Makefile and Kconfig
files for building the Thumb-2 kernel.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index da28e7ba6083..a36b5a8b123e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -983,6 +983,18 @@ config HZ
         default AT91_TIMER_HZ if ARCH_AT91
         default 100
 
+config THUMB2_KERNEL
+        bool "Compile the kernel in Thumb-2 mode"
+        depends on CPU_V7 && EXPERIMENTAL
+        select AEABI
+        select ARM_ASM_UNIFIED
+        help
+          By enabling this option, the kernel will be compiled in
+          Thumb-2 mode. A compiler/assembler that understand the unified
+          ARM-Thumb syntax is needed.
+
+          If unsure, say N.
+
 config ARM_ASM_UNIFIED
         bool