Commit 05384213 authored by Martin Liska's avatar Martin Liska Committed by Linus Torvalds
Browse files

gcov: support GCC 7.1 

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

[akpm@linux-foundation.org: coding-style fixes]
[mliska@suse.cz: v2]
  Link: http://lkml.kernel.org/r/e63a3c59-0149-c97e-4084-20ca8f146b26@suse.cz
Link: http://lkml.kernel.org/r/8c4084fa-3885-29fe-5fc4-0d4ca199c785@suse.cz


Signed-off-by: default avatarMartin Liska <mliska@suse.cz>
Acked-by: default avatarPeter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 8d35bb31

kernel/gcov/base.c

+6 −0
Original line number Diff line number Diff line
@@ -98,6 +98,12 @@ void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters) 
}

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
Original line number Diff line number Diff line
@@ -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

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