This is a note to let you know that I've just added the patch titled
gcov: add support for checksum field
to the 6.1-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-add-support-for-checksum-field.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e96b95c2b7a63a454b6498e2df67aac14d046d13 Mon Sep 17 00:00:00 2001
From: Rickard x Andersson <rickaran@xxxxxxxx>
Date: Tue, 20 Dec 2022 11:23:18 +0100
Subject: gcov: add support for checksum field
From: Rickard x Andersson <rickaran@xxxxxxxx>
commit e96b95c2b7a63a454b6498e2df67aac14d046d13 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/gcov/gcc_4_7.c | 5 +++++
1 file changed, 5 insertions(+)
--- 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;
Patches currently in stable-queue which might be from rickaran@xxxxxxxx are
queue-6.1/gcov-add-support-for-checksum-field.patch
