install EH code

From-SVN: r12567

diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index ab9fbc15d5f5a0bb50e6b08e54b33d6acc3cd087..c60f157902732cc26aa9b48de813048e955396db 100644 (file)
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -1720,3 +1720,12 @@ do {                                                                     \
   arm_increase_location (4);                                           \
   ASM_OUTPUT_INT (FILE, XEXP (DECL_RTL (FUNCTION), 0));                        \
 } while (0)
+
+/* Used to mask out junk bits from the return address, such as
+   processor state, interrupt status, condition codes and the like.  */
+#define MASK_RETURN_ADDR \
+  /* If we are generating code for an ARM2/ARM3 machine or for an ARM6 \
+     in 26 bit mode, the condition codes must be masked out of the     \
+     return address.  This does not apply to ARM6 and later processors \
+     when running in 32 bit mode.  */                                  \
+  ((!TARGET_6) ? (GEN_INT (0x03fffffc)) : (GEN_INT (0xffffffff)))