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gcov: add support for GCC 14

Using gcov on kernels compiled with GCC 14 results in truncated 16-byte
long .gcda files with no usable data. To fix this, update GCOV_COUNTERS
to match the value defined by GCC 14.

Tested with GCC versions 14.1.0 and 13.2.0.

Link: https://lkml.kernel.org/r/20240610092743.1609845-1-oberpar@linux.ibm.com
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reported-by: Allison Henderson <allison.henderson@oracle.com>
Reported-by: Chuck Lever III <chuck.lever@oracle.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

Peter Oberparleiter and committed by
Andrew Morton c1558bc5 7fea700e

+3 -1
+3 -1
kernel/gcov/gcc_4_7.c
··· 18 18 #include <linux/mm.h> 19 19 #include "gcov.h" 20 20 21 - #if (__GNUC__ >= 10) 21 + #if (__GNUC__ >= 14) 22 + #define GCOV_COUNTERS 9 23 + #elif (__GNUC__ >= 10) 22 24 #define GCOV_COUNTERS 8 23 25 #elif (__GNUC__ >= 7) 24 26 #define GCOV_COUNTERS 9