X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/813fb2f63a553c957e917ede5f119b021d6ce391..bca245acd4c03fd752d1a45f011ad495e60fe53d:/libkern/os/trace_internal.h?ds=sidebyside

diff --git a/libkern/os/trace_internal.h b/libkern/os/trace_internal.h
index 1ee1c984e..8073b0772 100644
--- a/libkern/os/trace_internal.h
+++ b/libkern/os/trace_internal.h
@@ -26,6 +26,7 @@
 
 #include <os/log.h>
 #include <uuid/uuid.h>
+#include <kern/assert.h>
 #include <firehose/firehose_types_private.h>
 
 __BEGIN_DECLS
@@ -34,7 +35,8 @@ OS_ALWAYS_INLINE
 inline uint32_t
 _os_trace_offset(const void *dso, const void *addr, _firehose_tracepoint_flags_activity_t flags __unused)
 {
-    return (uint32_t) ((uintptr_t)addr - (uintptr_t)dso);
+	assert((uintptr_t)addr >= (uintptr_t)dso);
+	return (uint32_t) ((uintptr_t)addr - (uintptr_t)dso);
 }
 
 bool