From: Nick Desaulniers <ndesaulniers@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>,
Sedat Dilek <sedat.dilek@gmail.com>,
Nathan Chancellor <natechancellor@gmail.com>,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
Kees Cook <keescook@chromium.org>, Marco Elver <elver@google.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Randy Dunlap <rdunlap@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Sami Tolvanen <samitolvanen@google.com>,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: [PATCH] compiler-clang: add build check for clang 10.0.1
Date: Wed, 26 Aug 2020 13:14:19 -0700 [thread overview]
Message-ID: <20200826201420.3414123-1-ndesaulniers@google.com> (raw)
During Plumbers 2020, we voted to just support the latest release of
Clang for now. Add a compile time check for this.
Older clang's may work, but we will likely drop workarounds for older
versions.
Link: https://github.com/ClangBuiltLinux/linux/issues/9
Link: https://github.com/ClangBuiltLinux/linux/issues/941
Suggested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
---
include/linux/compiler-clang.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index cee0c728d39a..7338d3ffd240 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -3,6 +3,14 @@
#error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
#endif
+#define CLANG_VERSION (__clang_major__ * 10000 \
+ + __clang_minor__ * 100 \
+ + __clang_patchlevel__)
+
+#if CLANG_VERSION < 100001
+# error Sorry, your compiler is too old - please upgrade it.
+#endif
+
/* Compiler specific definitions for Clang compiler */
/* same as gcc, this was present in clang-2.6 so we can assume it works
--
2.28.0.297.g1956fa8f8d-goog
next reply other threads:[~2020-08-26 20:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-26 20:14 Nick Desaulniers [this message]
2020-08-26 21:01 ` Kees Cook
2020-08-27 7:16 ` Sedat Dilek
2020-08-26 21:17 ` Miguel Ojeda
2020-08-26 21:26 ` Nathan Chancellor
2020-08-27 7:19 ` Sedat Dilek
2020-08-26 21:42 ` Nathan Chancellor
2020-08-27 19:02 ` Marco Elver
2020-08-28 10:54 ` Andrey Konovalov
2020-08-31 23:32 ` Nick Desaulniers
2020-08-31 23:36 ` Nick Desaulniers
2020-08-27 7:22 ` Sedat Dilek
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