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selftests: add headers_install to lib.mk If the kernel headers aren't installed we can't build all the tests. Add a new make target rule 'khdr' in the file lib.mk to generate the kernel headers and that gets include for every test-dir Makefile that includes lib.mk If the testdir in turn have its own sub-dirs the top_srcdir needs to be set to the linux-rootdir to be able to generate the kernel headers. Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Reviewed-by: Fathi Boudra <fathi.boudra@linaro.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-09-04 06:47:21 -04:00
# SUBARCH tells the usermode build what the underlying arch is. That is set
# first, and if a usermode build is happening, the "ARCH=um" on the command
# line overrides the setting of ARCH below. If a native build is happening,
# then ARCH is assigned, getting whatever value it gets normally, and
# SUBARCH is subsequently ignored.
SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
-e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
parisc: Fix compile failure when building 64-bit kernel natively Commit 23243c1ace9f ("arch: use cross_compiling to check whether it is a cross build or not") broke 64-bit parisc builds on 32-bit parisc systems. Helge mentioned: - 64-bit parisc userspace is not supported yet [1] - hppa gcc does not support "-m64" flag [2] That means, parisc developers working on a 32-bit parisc machine need to use hppa64-linux-gnu-gcc (cross compiler) for building the 64-bit parisc kernel. After the offending commit, gcc is used in such a case because both $(SRCARCH) and $(SUBARCH) are 'parisc', hence cross_compiling is unset. A correct way is to introduce ARCH=parisc64 because building the 64-bit parisc kernel on a 32-bit parisc system is not exactly a native build, but rather a semi-cross build. [1]: https://lore.kernel.org/linux-parisc/5dfd81eb-c8ca-b7f5-e80e-8632767c022d@gmx.de/#t [2]: https://lore.kernel.org/linux-parisc/89515325-fc21-31da-d238-6f7a9abbf9a0@gmx.de/ Fixes: 23243c1ace9f ("arch: use cross_compiling to check whether it is a cross build or not") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Cc: <stable@vger.kernel.org> # v5.13+ Signed-off-by: Helge Deller <deller@gmx.de>
2021-06-09 22:03:31 -04:00
-e s/s390x/s390/ \
selftests: add headers_install to lib.mk If the kernel headers aren't installed we can't build all the tests. Add a new make target rule 'khdr' in the file lib.mk to generate the kernel headers and that gets include for every test-dir Makefile that includes lib.mk If the testdir in turn have its own sub-dirs the top_srcdir needs to be set to the linux-rootdir to be able to generate the kernel headers. Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Reviewed-by: Fathi Boudra <fathi.boudra@linaro.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-09-04 06:47:21 -04:00
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
LoongArch: Add build infrastructure Add Kbuild, Makefile, Kconfig and link script for LoongArch build infrastructure. Reviewed-by: Guo Ren <guoren@kernel.org> Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2022-05-31 06:04:11 -04:00
-e s/riscv.*/riscv/ -e s/loongarch.*/loongarch/)