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| author | Marco Elver <elver@google.com> | 2020-02-04 18:21:12 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:42:26 +0100 |
| commit | 8cfbb04fae75260eae07ab8c74c1dcd44294d739 (patch) | |
| tree | 2b6da9cd0591916e390cc4af254c2c326279a57a /lib/Kconfig.kcsan | |
| parent | kcsan: Clarify Kconfig option KCSAN_IGNORE_ATOMICS (diff) | |
| download | linux-8cfbb04fae75260eae07ab8c74c1dcd44294d739.tar.xz linux-8cfbb04fae75260eae07ab8c74c1dcd44294d739.zip | |
kcsan: Clean up the main KCSAN Kconfig option
This patch cleans up the rules of the 'KCSAN' Kconfig option by:
1. implicitly selecting 'STACKTRACE' instead of depending on it;
2. depending on DEBUG_KERNEL, to avoid accidentally turning KCSAN on if
the kernel is not meant to be a debug kernel;
3. updating the short and long summaries.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/Kconfig.kcsan')
| -rw-r--r-- | lib/Kconfig.kcsan | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/Kconfig.kcsan b/lib/Kconfig.kcsan index 020ac63e4361..9785bbf9a1d1 100644 --- a/lib/Kconfig.kcsan +++ b/lib/Kconfig.kcsan @@ -4,12 +4,15 @@ config HAVE_ARCH_KCSAN bool menuconfig KCSAN - bool "KCSAN: watchpoint-based dynamic data race detector" - depends on HAVE_ARCH_KCSAN && !KASAN && STACKTRACE + bool "KCSAN: dynamic data race detector" + depends on HAVE_ARCH_KCSAN && DEBUG_KERNEL && !KASAN + select STACKTRACE help - Kernel Concurrency Sanitizer is a dynamic data race detector, which - uses a watchpoint-based sampling approach to detect races. See - <file:Documentation/dev-tools/kcsan.rst> for more details. + The Kernel Concurrency Sanitizer (KCSAN) is a dynamic data race + detector, which relies on compile-time instrumentation, and uses a + watchpoint-based sampling approach to detect data races. + + See <file:Documentation/dev-tools/kcsan.rst> for more details. if KCSAN |