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c6x: pass endianness info to sparse

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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>
This commit is contained in:
Luc Van Oostenryck 2017-10-31 18:22:02 +01:00 committed by Mark Salter
parent 319938bd6f
commit 85fa2cc511
1 changed files with 1 additions and 0 deletions
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arch/c6x/Makefile
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@ -25,6 +25,7 @@ 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