From: Rickard x Andersson <rickaran@xxxxxxxx>
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.
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>
Cc: <stable@xxxxxxxxxxxxxxx>
---
kernel/gcov/gcc_4_7.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index c699feda21ac..04880d8fba25 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -85,6 +85,7 @@ 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
@@ -97,6 +98,10 @@ 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;
--
2.30.2
