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| author | Arnd Bergmann <arnd@arndb.de> | 2020-05-21 16:20:37 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 20:03:59 +0200 |
| commit | ea91a1d45d19469001a4955583187b0d75915759 (patch) | |
| tree | 172cb2b83453189187fc3d1463cc3429b6064fdc /net/psample | |
| parent | Rebase locking/kcsan to locking/urgent (diff) | |
| download | linux-ea91a1d45d19469001a4955583187b0d75915759.tar.xz linux-ea91a1d45d19469001a4955583187b0d75915759.zip | |
ubsan, kcsan: Don't combine sanitizer with kcov on clang
Clang does not allow -fsanitize-coverage=trace-{pc,cmp} together
with -fsanitize=bounds or with ubsan:
clang: error: argument unused during compilation: '-fsanitize-coverage=trace-pc' [-Werror,-Wunused-command-line-argument]
clang: error: argument unused during compilation: '-fsanitize-coverage=trace-cmp' [-Werror,-Wunused-command-line-argument]
To avoid the warning, check whether clang can handle this correctly or
disallow ubsan and kcsan when kcov is enabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marco Elver <elver@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://bugs.llvm.org/show_bug.cgi?id=45831
Link: https://lore.kernel.org/lkml/20200505142341.1096942-1-arnd@arndb.de
Link: https://lkml.kernel.org/r/20200521142047.169334-2-elver@google.com
Diffstat (limited to 'net/psample')
0 files changed, 0 insertions, 0 deletions