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| author | Marco Elver <elver@google.com> | 2020-07-24 09:00:05 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-08-25 00:09:58 +0200 |
| commit | bec4a2474890a6884eb890c778ea02bccaaae6eb (patch) | |
| tree | c503cb543a991b2812869b57821273398ffe8804 /lib/Kconfig.kcsan | |
| parent | kcsan: Add missing CONFIG_KCSAN_IGNORE_ATOMICS checks (diff) | |
| download | linux-bec4a2474890a6884eb890c778ea02bccaaae6eb.tar.xz linux-bec4a2474890a6884eb890c778ea02bccaaae6eb.zip | |
kcsan: Test support for compound instrumentation
Changes kcsan-test module to support checking reports that include
compound instrumentation. Since we should not fail the test if this
support is unavailable, we have to add a config variable that the test
can use to decide what to check for.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'lib/Kconfig.kcsan')
| -rw-r--r-- | lib/Kconfig.kcsan | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Kconfig.kcsan b/lib/Kconfig.kcsan index 3d282d51849b..f271ff5fbb5a 100644 --- a/lib/Kconfig.kcsan +++ b/lib/Kconfig.kcsan @@ -40,6 +40,11 @@ menuconfig KCSAN if KCSAN +# Compiler capabilities that should not fail the test if they are unavailable. +config CC_HAS_TSAN_COMPOUND_READ_BEFORE_WRITE + def_bool (CC_IS_CLANG && $(cc-option,-fsanitize=thread -mllvm -tsan-compound-read-before-write=1)) || \ + (CC_IS_GCC && $(cc-option,-fsanitize=thread --param tsan-compound-read-before-write=1)) + config KCSAN_VERBOSE bool "Show verbose reports with more information about system state" depends on PROVE_LOCKING |