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| author | Rickard x Andersson <rickaran@axis.com> | 2022-12-20 11:23:18 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-12-21 14:31:52 -0800 |
| commit | e96b95c2b7a63a454b6498e2df67aac14d046d13 (patch) | |
| tree | 5678afd70052add7c9bec7e32d7c44336f10f9d4 /kernel/gcov | |
| parent | c5651b31f51584bd1199b3a552c8211a8523d6e1 (diff) | |
| download | linux-stable-e96b95c2b7a63a454b6498e2df67aac14d046d13.tar.gz linux-stable-e96b95c2b7a63a454b6498e2df67aac14d046d13.tar.bz2 linux-stable-e96b95c2b7a63a454b6498e2df67aac14d046d13.zip | |
gcov: add support for checksum field
In GCC version 12.1 a checksum field was added.
This patch fixes a kernel crash occurring during boot when using
gcov-kernel with GCC version 12.2. The crash occurred on a system running
on i.MX6SX.
Link: https://lkml.kernel.org/r/20221220102318.3418501-1-rickaran@axis.com
Fixes: 977ef30a7d88 ("gcov: support GCC 12.1 and newer compilers")
Signed-off-by: Rickard x Andersson <rickaran@axis.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Martin Liska <mliska@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/gcov')
| -rw-r--r-- | kernel/gcov/gcc_4_7.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c index 7971e989e425..74a4ef1da9ad 100644 --- a/kernel/gcov/gcc_4_7.c +++ b/kernel/gcov/gcc_4_7.c @@ -82,6 +82,7 @@ struct gcov_fn_info { * @version: gcov version magic indicating the gcc version used for compilation * @next: list head for a singly-linked list * @stamp: uniquifying time stamp + * @checksum: unique object checksum * @filename: name of the associated gcov data file * @merge: merge functions (null for unused counter type) * @n_functions: number of instrumented functions @@ -94,6 +95,10 @@ struct gcov_info { unsigned int version; struct gcov_info *next; unsigned int stamp; + /* Since GCC 12.1 a checksum field is added. */ +#if (__GNUC__ >= 12) + unsigned int checksum; +#endif const char *filename; void (*merge[GCOV_COUNTERS])(gcov_type *, unsigned int); unsigned int n_functions; |