Add -mthumb to CFLAGS to force Thumb mode

Signed-off-by: Drew Fisher <drew.m.fisher@gmail.com>
Signed-off-by: Matt Mullins <mmullins@mmlx.us>

diff --git a/Makefile b/Makefile
index 230d79f..38e4a74 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ CC=$(ARCH)-gcc
 LD=$(ARCH)-ld
 OBJCOPY=$(ARCH)-objcopy
 
-CFLAGS=-ggdb -std=gnu99 -mcpu=cortex-m4 -nostdinc -I $(STELLARISWARE)/inc
+CFLAGS=-ggdb -std=gnu99 -mthumb -mcpu=cortex-m4 -nostdinc -I $(STELLARISWARE)/inc
 LDFLAGS=-Tstellaris.t
 
 STELLARISWARE=/home/mmullins/projects/stellaris/StellarisWare