Move abi bits to separate header. Force AAPCS for EABI in accordance with ARM RTABI.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@129769 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/absvsi2.c b/lib/absvsi2.c
index ec5cf69..80a1a78 100644
--- a/lib/absvsi2.c
+++ b/lib/absvsi2.c
@@ -10,7 +10,8 @@
  * This file implements __absvsi2 for the compiler_rt library.
  *
  * ===----------------------------------------------------------------------===
- */ 
+ */
+#include "abi.h"
 
 #include "int_lib.h"
 #include <stdlib.h>
@@ -19,7 +20,7 @@
 
 /* Effects: aborts if abs(x) < 0 */
 
-si_int
+COMPILER_RT_ABI si_int
 __absvsi2(si_int a)
 {
     const int N = (int)(sizeof(si_int) * CHAR_BIT);