Commit 1fe84fd4 authored by Marco Elver's avatar Marco Elver Committed by Paul E. McKenney
Browse files

kcsan: Add test suite 



This adds KCSAN test focusing on behaviour of the integrated runtime.
Tests various race scenarios, and verifies the reports generated to
console. Makes use of KUnit for test organization, and the Torture
framework for test thread control.

Signed-off-by: default avatarMarco Elver <elver@google.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent c93773c1

kernel/kcsan/Makefile

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@@ -12,3 +12,6 @@ CFLAGS_core.o := $(call cc-option,-fno-conserve-stack,) \ 


obj-y := core.o debugfs.o report.o

obj-$(CONFIG_KCSAN_SELFTEST) += test.o



CFLAGS_kcsan-test.o := $(CFLAGS_KCSAN) -g -fno-omit-frame-pointer

obj-$(CONFIG_KCSAN_TEST) += kcsan-test.o

kernel/kcsan/kcsan-test.c

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+1084 −0

File added.

Preview size limit exceeded, changes collapsed.

lib/Kconfig.kcsan

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@@ -59,7 +59,28 @@ config KCSAN_SELFTEST 
	bool "Perform short selftests on boot"

	default y

	help

	  Run KCSAN selftests on boot. On test failure, causes the kernel to panic.

	  Run KCSAN selftests on boot. On test failure, causes the kernel to

	  panic. Recommended to be enabled, ensuring critical functionality

	  works as intended.



config KCSAN_TEST

	tristate "KCSAN test for integrated runtime behaviour"

	depends on TRACEPOINTS && KUNIT

	select TORTURE_TEST

	help

	  KCSAN test focusing on behaviour of the integrated runtime. Tests

	  various race scenarios, and verifies the reports generated to

	  console. Makes use of KUnit for test organization, and the Torture

	  framework for test thread control.



	  Each test case may run at least up to KCSAN_REPORT_ONCE_IN_MS

	  milliseconds. Test run duration may be optimized by building the

	  kernel and KCSAN test with KCSAN_REPORT_ONCE_IN_MS set to a lower

	  than default value.



	  Say Y here if you want the test to be built into the kernel and run

	  during boot; say M if you want the test to build as a module; say N

	  if you are unsure.



config KCSAN_EARLY_ENABLE

	bool "Early enable during boot"