Thumb-2: Add some .align statements to the .S files

Since the Thumb-2 instructions can be 16-bit wide, data in the .text
sections may not be aligned to a 32-bit word and this leads to unaligned
exceptions. This patch does not affect the ARM code generation.

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

2 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index fc8af43c5000..0befd1cabf45 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -1065,6 +1065,10 @@ vector_\name:
         ldr     lr, [pc, lr, lsl #2]
         movs    pc, lr                  @ branch to handler in SVC mode
 ENDPROC(vector_\name)
+
+        .align  2
+        @ handler addresses follow this label
+1:
         .endm
 
         .globl  __stubs_start
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
index 991952c644d1..dbfaef07a1f4 100644
--- a/arch/arm/kernel/head-common.S
+++ b/arch/arm/kernel/head-common.S
@@ -14,6 +14,7 @@
 #define ATAG_CORE 0x54410001
 #define ATAG_CORE_SIZE ((2*4 + 3*4) >> 2)
 
+        .align  2
         .type   __switch_data, %object
 __switch_data:
         .long   __mmap_switched
@@ -185,6 +186,7 @@ ENDPROC(lookup_processor_type)
  * Look in <asm/procinfo.h> and arch/arm/kernel/arch.[ch] for
  * more information about the __proc_info and __arch_info structures.
  */
+        .align  2
         .long   __proc_info_begin
         .long   __proc_info_end
 3:      .long   .