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| author | Marco Elver <elver@google.com> | 2023-03-16 23:47:05 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-03-23 17:18:35 -0700 |
| commit | 5eb39cde1e2487ba5ec1802dc5e58a77e700d99e (patch) | |
| tree | e3709df8b95ae2a21e6d4d862274d7ce13ec34b3 | |
| parent | 2e08ca1802441224f5b7cc6bffbb687f7406de95 (diff) | |
| download | lwn-5eb39cde1e2487ba5ec1802dc5e58a77e700d99e.tar.gz lwn-5eb39cde1e2487ba5ec1802dc5e58a77e700d99e.zip | |
kcsan: avoid passing -g for test
Nathan reported that when building with GNU as and a version of clang that
defaults to DWARF5, the assembler will complain with:
Error: non-constant .uleb128 is not supported
This is because `-g` defaults to the compiler debug info default. If the
assembler does not support some of the directives used, the above errors
occur. To fix, remove the explicit passing of `-g`.
All the test wants is that stack traces print valid function names, and
debug info is not required for that. (I currently cannot recall why I
added the explicit `-g`.)
Link: https://lkml.kernel.org/r/20230316224705.709984-2-elver@google.com
Fixes: 1fe84fd4a402 ("kcsan: Add test suite")
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | kernel/kcsan/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kcsan/Makefile b/kernel/kcsan/Makefile index 8cf70f068d92..a45f3dfc8d14 100644 --- a/kernel/kcsan/Makefile +++ b/kernel/kcsan/Makefile @@ -16,6 +16,6 @@ obj-y := core.o debugfs.o report.o KCSAN_INSTRUMENT_BARRIERS_selftest.o := y obj-$(CONFIG_KCSAN_SELFTEST) += selftest.o -CFLAGS_kcsan_test.o := $(CFLAGS_KCSAN) -g -fno-omit-frame-pointer +CFLAGS_kcsan_test.o := $(CFLAGS_KCSAN) -fno-omit-frame-pointer CFLAGS_kcsan_test.o += $(DISABLE_STRUCTLEAK_PLUGIN) obj-$(CONFIG_KCSAN_KUNIT_TEST) += kcsan_test.o |