linux/arch/c6x/Makefile
Luc Van Oostenryck 85fa2cc511 c6x: pass endianness info to sparse
c6x depends on the macro '_BIG_ENDIAN' being defined or not
to correctly select or define endian-specific macros, structures
or pieces of code.

This macro is predefined by the compiler but sparse knows nothing
about it and thus may pre-process files differently from what
gcc would.

Fix this by passing '-D_BIG_ENDIAN' when compiling a big-endian
kernel, like GCC would have done.

To: Mark Salter <msalter@redhat.com>
To: Aurelien Jacquiot <a-jacquiot@ti.com>
CC: linux-c6x-dev@linux-c6x.org
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
2018-04-10 09:58:58 -04:00

64 lines
1.6 KiB
Makefile

#
# linux/arch/c6x/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
KBUILD_DEFCONFIG := dsk6455_defconfig
cflags-y += -mno-dsbt -msdata=none -D__linux__
cflags-$(CONFIG_C6X_BIG_KERNEL) += -mlong-calls
KBUILD_CFLAGS_MODULE += -mlong-calls -mno-dsbt -msdata=none
CHECKFLAGS +=
KBUILD_CFLAGS += $(cflags-y)
KBUILD_AFLAGS += $(cflags-y)
ifdef CONFIG_CPU_BIG_ENDIAN
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
LINKFLAGS += -mbig-endian
KBUILD_LDFLAGS += -mbig-endian
LDFLAGS += -EB
CHECKFLAGS += -D_BIG_ENDIAN
endif
head-y := arch/c6x/kernel/head.o
core-y += arch/c6x/kernel/ arch/c6x/mm/ arch/c6x/platforms/
libs-y += arch/c6x/lib/
# Default to vmlinux.bin, override when needed
all: vmlinux.bin
boot := arch/$(ARCH)/boot
# Are we making a dtbImage.<boardname> target? If so, crack out the boardname
DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS)))
export DTB
ifneq ($(DTB),)
core-y += $(boot)/dts/
endif
# With make 3.82 we cannot mix normal and wildcard targets
vmlinux.bin: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
dtbImage.%: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
@echo ' vmlinux.bin - Binary kernel image (arch/$(ARCH)/boot/vmlinux.bin)'
@echo ' dtbImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
@echo ' - stripped elf with fdt blob'
endef