Commit 8ed691b0 authored by Alexander Potapenko's avatar Alexander Potapenko Committed by Andrew Morton

kmsan: add tests for KMSAN

The testing module triggers KMSAN warnings in different cases and checks
that the errors are properly reported, using console probes to capture the
tool's output.

Link: https://lkml.kernel.org/r/20220915150417.722975-25-glider@google.comSigned-off-by: default avatarAlexander Potapenko <glider@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 553a8018
...@@ -47,4 +47,16 @@ config KMSAN_CHECK_PARAM_RETVAL ...@@ -47,4 +47,16 @@ config KMSAN_CHECK_PARAM_RETVAL
may potentially report errors in corner cases when non-instrumented may potentially report errors in corner cases when non-instrumented
functions call instrumented ones. functions call instrumented ones.
config KMSAN_KUNIT_TEST
tristate "KMSAN integration test suite" if !KUNIT_ALL_TESTS
default KUNIT_ALL_TESTS
depends on TRACEPOINTS && KUNIT
help
Test suite for KMSAN, testing various error detection scenarios,
and checking that reports are correctly output to console.
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.
endif endif
...@@ -22,3 +22,7 @@ CFLAGS_init.o := $(CC_FLAGS_KMSAN_RUNTIME) ...@@ -22,3 +22,7 @@ CFLAGS_init.o := $(CC_FLAGS_KMSAN_RUNTIME)
CFLAGS_instrumentation.o := $(CC_FLAGS_KMSAN_RUNTIME) CFLAGS_instrumentation.o := $(CC_FLAGS_KMSAN_RUNTIME)
CFLAGS_report.o := $(CC_FLAGS_KMSAN_RUNTIME) CFLAGS_report.o := $(CC_FLAGS_KMSAN_RUNTIME)
CFLAGS_shadow.o := $(CC_FLAGS_KMSAN_RUNTIME) CFLAGS_shadow.o := $(CC_FLAGS_KMSAN_RUNTIME)
obj-$(CONFIG_KMSAN_KUNIT_TEST) += kmsan_test.o
KMSAN_SANITIZE_kmsan_test.o := y
CFLAGS_kmsan_test.o += $(call cc-disable-warning, uninitialized)
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