Messages in this thread |  | | Date | Tue, 9 Feb 2021 13:38:17 +0100 | From | Thomas Bogendoerfer <> | Subject | Re: [PATCH mips-fixes] MIPS: compressed: fix build with enabled UBSAN |
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On Mon, Feb 08, 2021 at 12:37:42PM +0000, Alexander Lobakin wrote: > 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> > --- > arch/mips/boot/compressed/Makefile | 1 + > 1 file changed, 1 insertion(+)
applied to mips-next.
Thomas.
-- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
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