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[PATCH v2 1/3] xen: gcov: add support for gcc 14
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Date: Fri, 28 Mar 2025 12:19:18 +0000
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- Cc: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Fri, 28 Mar 2025 12:19:34 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHbn9ugQ0dEnnHnb0a6KEmZuR8Mhg==
- Thread-topic: [PATCH v2 1/3] xen: gcov: add support for gcc 14
gcc 14 (with patch "Add condition coverage (MC/DC)") introduced 9th
gcov counter. Also this version can call new merge function
__gcov_merge_ior(), so we need a new stub for it.
Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
---
Changes is v2:
- Check for gcc 14, not gcc 14.1
---
xen/common/coverage/gcc_4_7.c | 4 +++-
xen/common/coverage/gcov_base.c | 5 +++++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/xen/common/coverage/gcc_4_7.c b/xen/common/coverage/gcc_4_7.c
index 1c20e35ee5..f4c1802303 100644
--- a/xen/common/coverage/gcc_4_7.c
+++ b/xen/common/coverage/gcc_4_7.c
@@ -28,8 +28,10 @@
#define GCOV_COUNTERS 10
#elif GCC_VERSION < 100000
#define GCOV_COUNTERS 9
-#else
+#elif GCC_VERSION < 140000
#define GCOV_COUNTERS 8
+#else
+#define GCOV_COUNTERS 9
#endif
#define GCOV_TAG_FUNCTION_LENGTH 3
diff --git a/xen/common/coverage/gcov_base.c b/xen/common/coverage/gcov_base.c
index d0c6d0a3f9..742034e039 100644
--- a/xen/common/coverage/gcov_base.c
+++ b/xen/common/coverage/gcov_base.c
@@ -56,6 +56,11 @@ void __gcov_merge_delta(gcov_type *counters, unsigned int
n_counters)
/* Unused. */
}
+void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+
/*
* Local variables:
* mode: C
--
2.48.1
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