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| author | Heiko Carstens <hca@linux.ibm.com> | 2023-06-22 15:55:08 +0300 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-06-28 14:57:09 +0300 |
| commit | 938f0c35d7d93a822ab9c9728e3205e8e57409d0 (patch) | |
| tree | 77bc127a6aec5dc7e861420cbb2a86c86b2306ae /arch/s390/Makefile | |
| parent | 13cf06d57fa8d2313d53ac19fbc8f1f7c751a4c4 (diff) | |
| download | linux-938f0c35d7d93a822ab9c9728e3205e8e57409d0.tar.xz | |
s390/decompressor: fix misaligned symbol build error
Nathan Chancellor reported a kernel build error on Fedora 39:
$ clang --version | head -1
clang version 16.0.5 (Fedora 16.0.5-1.fc39)
$ s390x-linux-gnu-ld --version | head -1
GNU ld version 2.40-1.fc39
$ make -skj"$(nproc)" ARCH=s390 CC=clang CROSS_COMPILE=s390x-linux-gnu- olddefconfig all
s390x-linux-gnu-ld: arch/s390/boot/startup.o(.text+0x5b4): misaligned symbol `_decompressor_end' (0x35b0f) for relocation R_390_PC32DBL
make[3]: *** [.../arch/s390/boot/Makefile:78: arch/s390/boot/vmlinux] Error 1
It turned out that the problem with misaligned symbols on s390 was fixed
with commit 80ddf5ce1c92 ("s390: always build relocatable kernel") for the
kernel image, but did not take into account that the decompressor uses its
own set of CFLAGS, which come without -fPIE.
Add the -fPIE flag also to the decompresser CFLAGS to fix this.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: CKI <cki-project@redhat.com>
Suggested-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1747
Link: https://lore.kernel.org/32935.123062114500601371@us-mta-9.us.mimecast.lan/
Link: https://lore.kernel.org/r/20230622125508.1068457-1-hca@linux.ibm.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch/s390/Makefile')
| -rw-r--r-- | arch/s390/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index ed646c583e4f..5ed242897b0d 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -27,6 +27,7 @@ KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float -mbac KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables KBUILD_CFLAGS_DECOMPRESSOR += -ffreestanding KBUILD_CFLAGS_DECOMPRESSOR += -fno-stack-protector +KBUILD_CFLAGS_DECOMPRESSOR += -fPIE KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member) KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g) KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,)) |