Kefeng Wang dd03762ab6 arm64: Enable KCSAN ... This patch enables KCSAN for arm64, with updates to build rules to not use KCSAN for several incompatible compilation units. Recent GCC version(at least GCC10) made outline-atomics as the default option(unlike Clang), which will cause linker errors for kernel/kcsan/core.o. Disables the out-of-line atomics by no-outline-atomics to fix the linker errors. Meanwhile, as Mark said[1], some latent issues are needed to be fixed which isn't just a KCSAN problem, we make the KCSAN depends on EXPERT for now. Tested selftest and kcsan_test(built with GCC11 and Clang 13), and all passed. [1] https://lkml.kernel.org/r/YadiUPpJ0gADbiHQ@FVFF77S0Q05N Acked-by: Marco Elver <elver@google.com> # kernel/kcsan Tested-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Link: https://lore.kernel.org/r/20211211131734.126874-1-wangkefeng.wang@huawei.com [catalin.marinas@arm.com: added comment to justify EXPERT] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2021-12-14 18:54:34 +00:00
..
core.c	kcsan: Move ctx to start of argument list	2021-09-13 16:41:19 -07:00
debugfs.c	kcsan: use u64 instead of cycles_t	2021-07-30 17:09:02 +02:00
encoding.h	kcsan: Add missing license and copyright headers	2021-03-08 14:27:43 -08:00
kcsan_test.c	kcsan: Support reporting scoped read-write access type	2021-09-13 16:41:19 -07:00
kcsan.h	kcsan: Add ability to pass instruction pointer of access to reporting	2021-09-13 16:41:19 -07:00
Makefile	arm64: Enable KCSAN	2021-12-14 18:54:34 +00:00
permissive.h	kcsan: permissive: Ignore data-racy 1-bit value changes	2021-07-20 13:49:44 -07:00
report.c	kcsan: Support reporting scoped read-write access type	2021-09-13 16:41:19 -07:00
selftest.c	kcsan: selftest: Cleanup and add missing __init	2021-09-13 16:41:20 -07:00