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kcsan: Add Kernel Concurrency Sanitizer infrastructure

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Kernel Concurrency Sanitizer (KCSAN) is a dynamic data-race detector for
kernel space. KCSAN is a sampling watchpoint-based data-race detector.
See the included Documentation/dev-tools/kcsan.rst for more details.

This patch adds basic infrastructure, but does not yet enable KCSAN for
any architecture.

Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Marco Elver
2019-11-14 19:02:54 +01:00
committed by Paul E. McKenney
parent 31f4f5b495
commit dfd402a4c4
24 changed files with 2006 additions and 9 deletions
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lib/Kconfig.debug
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@@ -2086,6 +2086,8 @@ source "lib/Kconfig.kgdb"
source "lib/Kconfig.ubsan"
source "lib/Kconfig.kcsan"
config ARCH_HAS_DEVMEM_IS_ALLOWED
bool