defs: add truncate_k{,u}long_to_current_klongsize

* src/defs.h (truncate_klong_to_current_klongsize,
truncate_kulong_to_current_klongsize): New functions.

1 files changed, 26 insertions, 0 deletions

diff --git a/src/defs.h b/src/defs.h
index b5f324e11..c9fe79dc6 100644
--- a/src/defs.h
+++ b/src/defs.h
@@ -1758,6 +1758,32 @@ truncate_kulong_to_current_wordsize(const kernel_ulong_t v)
 	}
 }
 
+static inline kernel_long_t
+truncate_klong_to_current_klongsize(const kernel_long_t v)
+{
+# if ANY_WORDSIZE_LESS_THAN_KERNEL_LONG
+	if (current_klongsize < sizeof(v)) {
+		return (int) v;
+	} else
+# endif
+	{
+		return v;
+	}
+}
+
+static inline kernel_ulong_t
+truncate_kulong_to_current_klongsize(const kernel_ulong_t v)
+{
+# if ANY_WORDSIZE_LESS_THAN_KERNEL_LONG
+	if (current_klongsize < sizeof(v)) {
+		return (unsigned int) v;
+	} else
+# endif
+	{
+		return v;
+	}
+}
+
 /*
  * Cast a pointer or a pointer-sized integer to kernel_ulong_t.
  */