From: Miguel Ojeda <ojeda@kernel.org>
To: Andrey Konovalov <andreyknvl@gmail.com>,
Marco Elver <elver@google.com>, Kees Cook <keescook@chromium.org>,
Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Nathan Chancellor <nathan@kernel.org>,
Uros Bizjak <ubizjak@gmail.com>,
Dan Li <ashimida@linux.alibaba.com>,
Alexander Potapenko <glider@google.com>,
Miguel Ojeda <ojeda@kernel.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] compiler-gcc: remove attribute support check for `__no_sanitize_undefined__`
Date: Fri, 21 Oct 2022 13:59:55 +0200 [thread overview]
Message-ID: <20221021115956.9947-4-ojeda@kernel.org> (raw)
In-Reply-To: <20221021115956.9947-1-ojeda@kernel.org>
The attribute was added in GCC 4.9, while the minimum GCC version
supported by the kernel is GCC 5.1.
Therefore, remove the check.
Link: https://godbolt.org/z/GrMeo6fYr
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---
include/linux/compiler-gcc.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index ba207deb77ca..7f2c2bb73815 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -90,11 +90,7 @@
#define __no_sanitize_thread
#endif
-#if __has_attribute(__no_sanitize_undefined__)
#define __no_sanitize_undefined __attribute__((__no_sanitize_undefined__))
-#else
-#define __no_sanitize_undefined
-#endif
#if defined(CONFIG_KCOV) && __has_attribute(__no_sanitize_coverage__)
#define __no_sanitize_coverage __attribute__((__no_sanitize_coverage__))
--
2.38.1
next prev parent reply other threads:[~2022-10-21 12:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 11:59 [PATCH 1/5] compiler-gcc: be consistent with underscores use for `no_sanitize` Miguel Ojeda
2022-10-21 11:59 ` [PATCH 2/5] compiler-gcc: remove attribute support check for `__no_sanitize_address__` Miguel Ojeda
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:18 ` Nathan Chancellor
2022-10-21 11:59 ` [PATCH 3/5] compiler-gcc: remove attribute support check for `__no_sanitize_thread__` Miguel Ojeda
2022-10-21 14:55 ` Marco Elver
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:18 ` Nathan Chancellor
2022-10-21 11:59 ` Miguel Ojeda [this message]
2022-10-21 16:11 ` [PATCH 4/5] compiler-gcc: remove attribute support check for `__no_sanitize_undefined__` Kees Cook
2022-10-21 21:19 ` Nathan Chancellor
2022-10-21 11:59 ` [PATCH 5/5] compiler-gcc: document minimum version for `__no_sanitize_coverage__` Miguel Ojeda
2022-10-21 14:55 ` Marco Elver
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:20 ` Nathan Chancellor
2022-10-21 16:11 ` [PATCH 1/5] compiler-gcc: be consistent with underscores use for `no_sanitize` Kees Cook
2022-10-21 21:17 ` Nathan Chancellor
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