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| author |   Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2018-05-28 20:27:35 +0200 |
|---|---|---|
| committer |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-29 22:05:08 +0900 |
| commit | 145167650b96967d6b726efef978c74831e6b2bd (patch) | |
| tree | d44acd9ef948a6ac63f1b72194a4b1691478bac1 | |
| parent | kbuild: $(CHECK) doesnt need NOSTDINC_FLAGS twice (diff) | |
| download | linux-dev-145167650b96967d6b726efef978c74831e6b2bd.tar.xz linux-dev-145167650b96967d6b726efef978c74831e6b2bd.zip | |
kbuild: add endianness flag to CHEKCFLAGS
The kernel depends on macros like __BYTE_ORDER__,
__BIG_ENDIAN__ or __LITTLE_ENDIAN__.
OTOH, sparse doesn't know about the endianness of the kernel and
by default uses the same as the machine on which sparse was built.
Ensure that sparse can predefine the macros corresponding to
how the kernel was configured by adding -m{big,little}-endian
to CHECKFLAGS in the main Makefile (and so for all archs).
Also, remove the equivalent done in arch specific Makefiles.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | arch/openrisc/Makefile | 1 | ||||
| -rw-r--r-- | arch/parisc/Makefile | 2 | ||||
| -rw-r--r-- | arch/s390/Makefile | 2 |
4 files changed, 5 insertions, 3 deletions
@@ -874,6 +874,9 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y) LDFLAGS_vmlinux += $(call ld-option, -X,) endif +# insure the checker run with the right endianness +CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) + # Default kernel image to build when no specific target is given. # KBUILD_IMAGE may be overruled on the command line or # set in the environment diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile index cf8802962864..89076a66eee2 100644 --- a/arch/openrisc/Makefile +++ b/arch/openrisc/Makefile @@ -25,7 +25,6 @@ LDFLAGS_vmlinux := LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) KBUILD_CFLAGS += -pipe -ffixed-r10 -D__linux__ -CHECKFLAGS += -mbig-endian ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y) KBUILD_CFLAGS += $(call cc-option,-mhard-mul) diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 34ac503e28ad..348ae4779f32 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -22,7 +22,7 @@ KBUILD_IMAGE := vmlinuz KBUILD_DEFCONFIG := default_defconfig NM = sh $(srctree)/arch/parisc/nm -CHECKFLAGS += -D__hppa__=1 -mbig-endian +CHECKFLAGS += -D__hppa__=1 LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) export LIBGCC diff --git a/arch/s390/Makefile b/arch/s390/Makefile index c79936d02f7b..68a690442be0 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -18,7 +18,7 @@ KBUILD_CFLAGS += -m64 KBUILD_AFLAGS += -m64 UTS_MACHINE := s390x STACK_SIZE := 16384 -CHECKFLAGS += -D__s390__ -D__s390x__ -mbig-endian +CHECKFLAGS += -D__s390__ -D__s390x__ export LD_BFD |