Messages in this thread | | | Date | Tue, 10 Dec 2019 10:59:20 -0800 | From | Paul Burton <> | Subject | Re: [PATCH] MIPS: disable kcov instrumentation in compressed dir |
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Hi Denis,
On Tue, Dec 10, 2019 at 08:50:02PM +0300, Denis Efremov wrote: > This patch fixes the compilation with CONFIG_KCOV enabled. > Otherwise linking fails with: > ld: arch/mips/boot/compressed/piggy.o: in function `main': > dummy.c:(.text.startup+0x8): undefined reference to `__sanitizer_cov_...' > make[1]: *** [arch/mips/boot/compressed/Makefile:101: vmlinuz] Error 1 > > Signed-off-by: Denis Efremov <efremov@linux.com> > --- > arch/mips/boot/compressed/Makefile | 3 +++ > 1 file changed, 3 insertions(+)
This one's identical to this patch which was merged to mips-fixes yesterday:
https://git.kernel.org/mips/c/3f0a2abff9aa
Thanks, Paul
> diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile > index 172801ed35b8..d859f079b771 100644 > --- a/arch/mips/boot/compressed/Makefile > +++ b/arch/mips/boot/compressed/Makefile > @@ -29,6 +29,9 @@ KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ > -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ > -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) > > +# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. > +KCOV_INSTRUMENT := n > + > # decompressor objects (linked with vmlinuz) > vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o > > -- > 2.20.1 >
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