Newlib-3.3.0 fix for ARMv6m

newlib-3.3.0-armv6m.diff

diff --git a/libgloss/arm/crt0.S b/libgloss/arm/crt0.S
index 48f3d6b1d..1a0a446e4 100644
--- a/libgloss/arm/crt0.S
+++ b/libgloss/arm/crt0.S
@@ -565,7 +565,7 @@

   /* For Thumb, constants must be after the code since only
      positive offsets are supported for PC relative addresses.  */
-  .align 0
+  .align 2
 .LC0:
 #ifdef ARM_RDI_MONITOR
   .word HeapBase
diff --git a/newlib/libc/machine/arm/setjmp.S b/newlib/libc/machine/arm/setjmp.S
index 1ba711d5e..b8511779f 100644
--- a/newlib/libc/machine/arm/setjmp.S
+++ b/newlib/libc/machine/arm/setjmp.S
@@ -74,11 +74,11 @@ SYM (setjmp):
   mov   r5, sp
   mov   r6, lr
   stmia r0!, {r1, r2, r3, r4, r5, r6}
-  sub   r0, r0, #40
+  subs  r0, r0, #40
   /* Restore callee-saved low regs.  */
   ldmia r0!, {r4, r5, r6, r7}
   /* Return zero.  */
-  mov   r0, #0
+  movs  r0, #0
   bx lr
 
 .thumb_func
@@ -86,7 +86,7 @@ SYM (setjmp):
   TYPE (longjmp)
 SYM (longjmp):
   /* Restore High regs.  */
-  add   r0, r0, #16
+  adds  r0, r0, #16
   ldmia r0!, {r2, r3, r4, r5, r6}
   mov   r8, r2
   mov   r9, r3
@@ -95,12 +95,12 @@ SYM (longjmp):
   mov   sp, r6
   ldmia r0!, {r3} /* lr */
   /* Restore low regs.  */
-  sub   r0, r0, #40
+  subs  r0, r0, #40
   ldmia r0!, {r4, r5, r6, r7}
   /* Return the result argument, or 1 if it is zero.  */
   mov   r0, r1
   bne   1f
-  mov   r0, #1
+  movs  r0, #1
 1:
   bx r3