asm: .eabi_attribute Tag_ABI_align_preserved, 1

Tell armlink that files has ensured proper stack alignment.

Signed-off-by: Torsten Rasmussen <[email protected]>

Author: tejlmand

arch/arm/core/aarch32/cortex_m/vector_table.S

@@ -22,6 +22,10 @@
 #include "vector_table.h"
 
 _ASM_FILE_PROLOGUE
+/*
+ * Tell armclang that stack alignment are ensured.
+ */
+.eabi_attribute Tag_ABI_align_preserved, 1
 
 GDATA(z_main_stack)
 

arch/arm/core/aarch32/isr_wrapper.S

@@ -12,6 +12,10 @@
  * Wrapper installed in vector table for handling dynamic interrupts that accept
  * a parameter.
  */
+/*
+ * Tell armclang that stack alignment are ensured.
+ */
+.eabi_attribute Tag_ABI_align_preserved, 1
 
 #include <toolchain.h>
 #include <linker/sections.h>