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