altos/arm: Align data so that gcc 5.4 doesn't do byte-accesses. Add -Wcast-align

[fw/altos] / src / stmf0 / stm32f0.h

diff --git a/src/stmf0/stm32f0.h b/src/stmf0/stm32f0.h
index 182cd9639df0af69ede15503542f88be7dec15bb..1c33f020b8af55ed380911de87d2e089c323e552 100644 (file)
--- a/src/stmf0/stm32f0.h
+++ b/src/stmf0/stm32f0.h
@@ -1996,7 +1996,7 @@ union stm_usb_bdt {
 
 #define STM_USB_BDT_SIZE       8
 
-extern uint8_t stm_usb_sram[];
+extern uint8_t stm_usb_sram[] __attribute__((aligned(4)));
 
 struct stm_exti {
        vuint32_t       imr;