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Patch "gcov: support GCC 7.1" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Aug 30, 2017

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This is a note to let you know that I've just added the patch titled

gcov: support GCC 7.1

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     gcov-support-gcc-7.1.patch

and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 05384213436ab690c46d9dfec706b80ef8d671ab Mon Sep 17 00:00:00 2001

From: Martin Liska <[email protected]>
Date: Fri, 12 May 2017 15:46:35 -0700
Subject: gcov: support GCC 7.1

From: Martin Liska <[email protected]>

commit 05384213436ab690c46d9dfec706b80ef8d671ab upstream.

Starting from GCC 7.1, __gcov_exit is a new symbol expected to be implemented in a profiling runtime.

---
 kernel/gcov/base.c    |    6 ++++++
 kernel/gcov/gcc_4_7.c |    4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)
kernel/gcov/base.c +6 -0
@@ -98,6 +98,12 @@ void __gcov_merge_icall_topn(gcov_type *
 }
 EXPORT_SYMBOL(__gcov_merge_icall_topn);
 
+void __gcov_exit(void)
+{
+	/* Unused. */
+}
+EXPORT_SYMBOL(__gcov_exit);
+
 /**
  * gcov_enable_events - enable event reporting through gcov_event()
  *
kernel/gcov/gcc_4_7.c +3 -1
@@ -18,7 +18,9 @@
 #include <linux/vmalloc.h>
 #include "gcov.h"
 
-#if (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
+#if (__GNUC__ >= 7)
+#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

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/gcov-support-gcc-7.1.patch