Masahiro Yamada e6cb41be83 UPSTREAM: kbuild: add --target to correctly cross-compile UAPI headers with Clang ...

When you compile-test UAPI headers (CONFIG_UAPI_HEADER_TEST=y) with
Clang, they are currently compiled for the host target (likely x86_64)
regardless of the given ARCH=.

In fact, some exported headers include libc headers. For example,
include/uapi/linux/agpgart.h includes <stdlib.h> after being exported.
The header search paths should match to the target we are compiling
them for.

Pick up the --target triple from KBUILD_CFLAGS in the same ways as
commit 7f58b487e9 ("kbuild: make Clang build userprogs for target
architecture").

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Bug: 190019968
Change-Id: I9f4867b4fc1d0c4cf1af2bb3d6f53c3a8a8f4437
(cherry picked from commit 9fbed27a7a)

2022-04-05 17:31:51 -07:00

..

.gitignore

usr/include: refactor .gitignore

2021-05-02 00:43:34 +09:00

Makefile

UPSTREAM: kbuild: add --target to correctly cross-compile UAPI headers with Clang

2022-04-05 17:31:51 -07:00