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samr21-xpro: Add -mno-thumb-interwork.

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Cortex-M processors only support Thumb instructions (no ARM mode code).

Signed-off-by: Joakim Gebart <joakim.gebart@eistec.se>
This commit is contained in:
Joakim Gebart 2015-01-22 13:36:23 +01:00
parent ee300272d4
commit 38fc33717b
1 changed files with 2 additions and 2 deletions
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4
boards/samr21-xpro/Makefile.include
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@ -21,10 +21,10 @@ export DEBUGGER = $(RIOTBOARD)/$(BOARD)/dist/debug.sh
# define build specific options
export CPU_USAGE = -mcpu=cortex-m0plus
FPU_USAGE =
export CFLAGS += -ggdb -g3 -std=gnu99 -O0 -Wall -Wstrict-prototypes $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -mthumb -mthumb-interwork -nostartfiles
export CFLAGS += -ggdb -g3 -std=gnu99 -O0 -Wall -Wstrict-prototypes $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -mthumb -mno-thumb-interwork -nostartfiles
export CFLAGS += -ffunction-sections -fdata-sections -fno-builtin
export ASFLAGS += -ggdb -g3 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian
export LINKFLAGS += -g3 -ggdb -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -static -lgcc -mthumb -mthumb-interwork -nostartfiles
export LINKFLAGS += -g3 -ggdb -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -static -lgcc -mthumb -mno-thumb-interwork -nostartfiles
# linkerscript specified in cpu/Makefile.include
export LINKFLAGS += -T$(LINKERSCRIPT)
export OFLAGS += -O binary