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authorNathan Chancellor <nathan@kernel.org>2021-03-26 03:04:34 +0300
committerBorislav Petkov <bp@suse.de>2021-03-26 13:32:55 +0300
commitd5cbd80e302dfea59726c44c56ab7957f822409f (patch)
tree113ee5a8d504531914f1306fa2f1e989f7290e97 /drivers
parent8abe7fc26ad8f28bfdf78adbed56acd1fa93f82d (diff)
downloadlinux-d5cbd80e302dfea59726c44c56ab7957f822409f.tar.xz
x86/boot: Add $(CLANG_FLAGS) to compressed KBUILD_CFLAGS
When cross compiling x86 on an ARM machine with clang, there are several errors along the lines of: arch/x86/include/asm/string_64.h:27:10: error: invalid output constraint '=&c' in asm This happens because the compressed boot Makefile reassigns KBUILD_CFLAGS and drops the clang flags that set the target architecture ('--target=') and the path to the GNU cross tools ('--prefix='), meaning that the host architecture is targeted. These flags are available as $(CLANG_FLAGS) from the main Makefile so add them to the compressed boot folder's KBUILD_CFLAGS so that cross compiling works as expected. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lkml.kernel.org/r/20210326000435.4785-3-nathan@kernel.org
Diffstat (limited to 'drivers')
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