diff options
| -rw-r--r-- | package/am33x-cm3/am33x-cm3-0001-fix-makefile.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/package/am33x-cm3/am33x-cm3-0001-fix-makefile.patch b/package/am33x-cm3/am33x-cm3-0001-fix-makefile.patch new file mode 100644 index 000000000..77ba11c77 --- /dev/null +++ b/package/am33x-cm3/am33x-cm3-0001-fix-makefile.patch @@ -0,0 +1,26 @@ +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> + +Index: b/Makefile +=================================================================== +--- a/Makefile ++++ b/Makefile +@@ -13,7 +13,7 @@ + BINDIR = bin + + INCLUDES = $(SRCDIR)/include +-CFLAGS =-mcpu=cortex-m3 -mthumb -nostdlib -Wall -g -I$(INCLUDES) ++CFLAGS =-march=armv7-m -mcpu=cortex-m3 -mthumb -nostdlib -Wall -g -I$(INCLUDES) + LDFLAGS =-nostartfiles -fno-exceptions -Tfirmware.ld + + EXECUTABLE=am335x-pm-firmware.elf |