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- Enforce correct -march option
- Buildroot uses a normal ARM compiler to build the AM33X CM3 firmware
- (which runs on a Cortex-M3 processor), but Buildroot will have a
- default -march value that doesn't necessarily match the one needed for
- Cortex-M3, leading to build failures (gcc complains that the
- -mcpu=cortex-m3 option being passed is not compatible with the
- selected -march).
- Fix this by explicitly indicating -march=armv7-m.
- Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- Updated the patch to the latest version of the Makefile
- Signed-off-by: Anders Darander <anders@chargestorm.se>
- Index: b/Makefile
- ===================================================================
- --- a/Makefile
- +++ b/Makefile
- @@ -13,7 +13,7 @@ SRCDIR = src
- BINDIR = bin
-
- INCLUDES = $(SRCDIR)/include
- -CFLAGS =-mcpu=cortex-m3 -mthumb -nostdlib -Wall -Wundef \
- +CFLAGS =-march=armv7-m -mcpu=cortex-m3 -mthumb -nostdlib -Wall -Wundef \
- -Werror-implicit-function-declaration -Wstrict-prototypes \
- -Wdeclaration-after-statement -fno-delete-null-pointer-checks \
- -Wempty-body -fno-strict-overflow -g -I$(INCLUDES) -O2
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