diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 7 | ||||
| -rw-r--r-- | lib/Kconfig.kcsan | 26 |
2 files changed, 31 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 9ad9210d70a1..1da566baecc9 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1117,6 +1117,7 @@ config PROVE_LOCKING select DEBUG_RWSEMS select DEBUG_WW_MUTEX_SLOWPATH select DEBUG_LOCK_ALLOC + select PREEMPT_COUNT if !ARCH_NO_PREEMPT select TRACE_IRQFLAGS default n help @@ -1325,11 +1326,17 @@ config WW_MUTEX_SELFTEST endmenu # lock debugging config TRACE_IRQFLAGS + depends on TRACE_IRQFLAGS_SUPPORT bool help Enables hooks to interrupt enabling and disabling for either tracing or lock debugging. +config TRACE_IRQFLAGS_NMI + def_bool y + depends on TRACE_IRQFLAGS + depends on TRACE_IRQFLAGS_NMI_SUPPORT + config STACKTRACE bool "Stack backtrace support" depends on STACKTRACE_SUPPORT diff --git a/lib/Kconfig.kcsan b/lib/Kconfig.kcsan index 5ee88e5119c2..3d282d51849b 100644 --- a/lib/Kconfig.kcsan +++ b/lib/Kconfig.kcsan @@ -4,7 +4,8 @@ config HAVE_ARCH_KCSAN bool config HAVE_KCSAN_COMPILER - def_bool CC_IS_CLANG && $(cc-option,-fsanitize=thread -mllvm -tsan-distinguish-volatile=1) + def_bool (CC_IS_CLANG && $(cc-option,-fsanitize=thread -mllvm -tsan-distinguish-volatile=1)) || \ + (CC_IS_GCC && $(cc-option,-fsanitize=thread --param tsan-distinguish-volatile=1)) help For the list of compilers that support KCSAN, please see <file:Documentation/dev-tools/kcsan.rst>. @@ -59,7 +60,28 @@ 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" |