mips: Enable KCSAN
This patch enables KCSAN for the 64-bit version. Updated rules
for the incompatible compilation units (vdso, boot/compressed).
Signed-off-by: Nemanja Rakovic <nemanja.rakovic@syrmia.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index da6b3e0..c667254 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -101,6 +101,7 @@
select TRACE_IRQFLAGS_SUPPORT
select VIRT_TO_BUS
select ARCH_HAS_ELFCORE_COMPAT
+ select HAVE_ARCH_KCSAN if 64BIT
config MIPS_FIXUP_BIGPHYS_ADDR
bool
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 5a15d51..a35f782 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -38,6 +38,7 @@
KCOV_INSTRUMENT := n
GCOV_PROFILE := n
UBSAN_SANITIZE := n
+KASAN_SANITIZE := n
# decompressor objects (linked with vmlinuz)
vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
index d65f55f..f72658b 100644
--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -1,6 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
# Objects to go into the VDSO.
+# Sanitizer runtimes are unavailable and cannot be linked here.
+ KCSAN_SANITIZE := n
+
# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before
# the inclusion of generic Makefile.
ARCH_REL_TYPE_ABS := R_MIPS_JUMP_SLOT|R_MIPS_GLOB_DAT
