[PATCH][libgloss][microblaze] libgloss: microblaze: adjust handlers to be weak.

[Ben Levinsky]

Previously, hw exception handler stub and interrupt handler stub for microbaze were unable to
be overwritten. Change to weak to fix this.

Signed-off-by: Ben Levinsky <ben.levinsky@xilinx.com>
---
 libgloss/microblaze/_hw_exception_handler.S | 3 ++-
 libgloss/microblaze/_interrupt_handler.S    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/libgloss/microblaze/_hw_exception_handler.S b/libgloss/microblaze/_hw_exception_handler.S
index bb729ca..47df945 100644
--- a/libgloss/microblaze/_hw_exception_handler.S
+++ b/libgloss/microblaze/_hw_exception_handler.S
@@ -30,7 +30,8 @@
 */
 
 	.text
-	.globl _hw_exception_handler    # HW Exception Handler Label 
+	.weakext _hw_exception_handler    # HW Exception Handler Label
+	.type _hw_exception_handler, %function
 	.align 2
 	
 	_hw_exception_handler:
diff --git a/libgloss/microblaze/_interrupt_handler.S b/libgloss/microblaze/_interrupt_handler.S
index 844c7d0..5bb7329 100644
--- a/libgloss/microblaze/_interrupt_handler.S
+++ b/libgloss/microblaze/_interrupt_handler.S
@@ -30,7 +30,8 @@
 */
 
 	.text
-	.globl _interrupt_handler    # Interrupt Handler Label 
+	.weakext _interrupt_handler    # Interrupt Handler Label
+	.type _interrupt_handler, %function
 	.align 2
 
 	_interrupt_handler:
-- 
2.7.4