linux-kernel - [PATCH] gcov: remove support for GCC

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Message-Id: <20201111030557.2015680-1-ndesaulniers@google.com>
Date:   Tue, 10 Nov 2020 19:05:56 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Peter Oberparleiter <oberpar@...ux.ibm.com>
Cc:     clang-built-linux@...glegroups.com,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] gcov: remove support for GCC < 4.9

Since
commit 0bddd227f3dc ("Documentation: update for gcc 4.9 requirement")
the minimum supported version of GCC is gcc-4.9. It's now safe to remove
this code.

Similar to
commit 10415533a906 ("gcov: Remove old GCC 3.4 support")
but that was for GCC 4.8 and this is for GCC 4.9.

Link: https://github.com/ClangBuiltLinux/linux/issues/427
Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
---
 kernel/gcov/gcc_4_7.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index 53c67c87f141..0da0aacc1f26 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -25,10 +25,8 @@
 #define GCOV_COUNTERS			9
 #elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
 #define GCOV_COUNTERS			10
-#elif __GNUC__ == 4 && __GNUC_MINOR__ >= 9
-#define GCOV_COUNTERS			9
 #else
-#define GCOV_COUNTERS			8
+#define GCOV_COUNTERS			9
 #endif
 
 #define GCOV_TAG_FUNCTION_LENGTH	3
-- 
2.29.2.222.g5d2a92d10f8-goog