The patch titled
Subject: gcov: add support for checksum field
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
gcov-add-support-for-checksum-field.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/gcov-add-support-for-checksum-field.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Rickard x Andersson <rickaran@xxxxxxxx>
Subject: gcov: add support for checksum field
Date: Tue, 20 Dec 2022 11:23:18 +0100
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@xxxxxxxx
Fixes: 977ef30a7d88 ("gcov: support GCC 12.1 and newer compilers")
Signed-off-by: Rickard x Andersson <rickaran@xxxxxxxx>
Reviewed-by: Peter Oberparleiter <oberpar@xxxxxxxxxxxxx>
Tested-by: Peter Oberparleiter <oberpar@xxxxxxxxxxxxx>
Reviewed-By: Martin Liska <mliska@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/gcov/gcc_4_7.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/kernel/gcov/gcc_4_7.c~gcov-add-support-for-checksum-field
+++ a/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;
_
Patches currently in -mm which might be from rickaran@xxxxxxxx are
gcov-add-support-for-checksum-field.patch
