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-rw-r--r--include/uapi/linux/kcov.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/uapi/linux/kcov.h b/include/uapi/linux/kcov.h
index 9529867717a8..409d3ad1e6e2 100644
--- a/include/uapi/linux/kcov.h
+++ b/include/uapi/linux/kcov.h
@@ -4,9 +4,24 @@
#include <linux/types.h>
+/*
+ * Argument for KCOV_REMOTE_ENABLE ioctl, see Documentation/dev-tools/kcov.rst
+ * and the comment before kcov_remote_start() for usage details.
+ */
+struct kcov_remote_arg {
+ unsigned int trace_mode; /* KCOV_TRACE_PC or KCOV_TRACE_CMP */
+ unsigned int area_size; /* Length of coverage buffer in words */
+ unsigned int num_handles; /* Size of handles array */
+ __u64 common_handle;
+ __u64 handles[0];
+};
+
+#define KCOV_REMOTE_MAX_HANDLES 0x100
+
#define KCOV_INIT_TRACE _IOR('c', 1, unsigned long)
#define KCOV_ENABLE _IO('c', 100)
#define KCOV_DISABLE _IO('c', 101)
+#define KCOV_REMOTE_ENABLE _IOW('c', 102, struct kcov_remote_arg)
enum {
/*
@@ -32,4 +47,17 @@ enum {
#define KCOV_CMP_SIZE(n) ((n) << 1)
#define KCOV_CMP_MASK KCOV_CMP_SIZE(3)
+#define KCOV_SUBSYSTEM_COMMON (0x00ull << 56)
+#define KCOV_SUBSYSTEM_USB (0x01ull << 56)
+
+#define KCOV_SUBSYSTEM_MASK (0xffull << 56)
+#define KCOV_INSTANCE_MASK (0xffffffffull)
+
+static inline __u64 kcov_remote_handle(__u64 subsys, __u64 inst)
+{
+ if (subsys & ~KCOV_SUBSYSTEM_MASK || inst & ~KCOV_INSTANCE_MASK)
+ return 0;
+ return subsys | inst;
+}
+
#endif /* _LINUX_KCOV_IOCTLS_H */