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| author | Alexander Lobakin <alobakin@pm.me> | 2021-02-08 12:37:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-25 09:04:12 +0100 |
| commit | 559b842a64ffb34390cf1545c9843affdb23535d (patch) | |
| tree | 53218413678d286e3f1ad1343e9daa490a6fdfa0 /arch/mips | |
| parent | 8545519b1f51b73372c86d754bc9ee83c5d06760 (diff) | |
| download | linux-stable-559b842a64ffb34390cf1545c9843affdb23535d.tar.gz linux-stable-559b842a64ffb34390cf1545c9843affdb23535d.tar.bz2 linux-stable-559b842a64ffb34390cf1545c9843affdb23535d.zip | |
MIPS: compressed: fix build with enabled UBSAN
[ Upstream commit fc4cac4cfc437659ce445c3c47b807e1cc625b66 ]
Commit 1e35918ad9d1 ("MIPS: Enable Undefined Behavior Sanitizer
UBSAN") added a possibility to build the entire kernel with UBSAN
instrumentation for MIPS, with the exception for VDSO.
However, self-extracting head wasn't been added to exceptions, so
this occurs:
mips-alpine-linux-musl-ld: arch/mips/boot/compressed/decompress.o:
in function `FSE_buildDTable_wksp':
decompress.c:(.text.FSE_buildDTable_wksp+0x278): undefined reference
to `__ubsan_handle_shift_out_of_bounds'
mips-alpine-linux-musl-ld: decompress.c:(.text.FSE_buildDTable_wksp+0x2a8):
undefined reference to `__ubsan_handle_shift_out_of_bounds'
mips-alpine-linux-musl-ld: decompress.c:(.text.FSE_buildDTable_wksp+0x2c4):
undefined reference to `__ubsan_handle_shift_out_of_bounds'
mips-alpine-linux-musl-ld: arch/mips/boot/compressed/decompress.o:
decompress.c:(.text.FSE_buildDTable_raw+0x9c): more undefined references
to `__ubsan_handle_shift_out_of_bounds' follow
Add UBSAN_SANITIZE := n to mips/boot/compressed/Makefile to exclude
it from instrumentation scope and fix this issue.
Fixes: 1e35918ad9d1 ("MIPS: Enable Undefined Behavior Sanitizer UBSAN")
Cc: stable@vger.kernel.org # 5.0+
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index d66511825fe1..337ab1d18cc1 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -36,6 +36,7 @@ KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. KCOV_INSTRUMENT := n +UBSAN_SANITIZE := n # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o |