From 9ce658030a0d772ee135d8158531e69b2696ab97 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 2 May 2013 13:37:30 +0200 Subject: [PATCH] bsps/arm: Copy vector table only if necessary --- c/src/lib/libbsp/arm/shared/start/start.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/c/src/lib/libbsp/arm/shared/start/start.S b/c/src/lib/libbsp/arm/shared/start/start.S index 9954a8717d..cb91d41494 100644 --- a/c/src/lib/libbsp/arm/shared/start/start.S +++ b/c/src/lib/libbsp/arm/shared/start/start.S @@ -186,11 +186,15 @@ bsp_start_hook_0_done: ldr r0, =bsp_vector_table_begin adr r1, bsp_start_vector_table_begin + cmp r0, r1 + beq bsp_vector_table_copy_done ldmia r1!, {r2-r9} stmia r0!, {r2-r9} ldmia r1!, {r2-r9} stmia r0!, {r2-r9} +bsp_vector_table_copy_done: + SWITCH_FROM_ARM_TO_THUMB r0 /* Branch to start hook 1 */