Commit 4c9544c0 authored Dec 09, 2019 by Jouni Hogander Committed by Greg Kroah-Hartman Jan 17, 2020

MIPS: Prevent link failure with kcov instrumentation



[ Upstream commit a4a3893114a41e365274d5fab5d9ff5acc235ff0 ]

__sanitizer_cov_trace_pc() is not linked in and causing link
failure if KCOV_INSTRUMENT is enabled. Fix this by disabling
instrumentation for compressed image.

Signed-off-by: Jouni Hogander <jouni.hogander@unikie.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 60af5786

arch/mips/boot/compressed/Makefile

+3 −0

Original line number	Diff line number	Diff line
		@@ -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