1 files changed, 9 insertions, 0 deletions

diff --git a/libexec/rtld-elf/debug.h b/libexec/rtld-elf/debug.h
index b3563386eaff..2600651997e8 100644
--- a/libexec/rtld-elf/debug.h
+++ b/libexec/rtld-elf/debug.h
@@ -38,6 +38,9 @@
 
 #include <sys/cdefs.h>
 
+#include <string.h>
+#include <unistd.h>
+
 extern void debug_printf(const char *, ...) __printflike(1, 2);
 extern int debug;
 
@@ -47,4 +50,10 @@ extern int debug;
 #define dbg(format, args...)	((void) 0)
 #endif
 
+#define assert(cond)	((cond) ? (void) 0 :		\
+    (msg("ld-elf.so.1: assert failed: " __FILE__ ":"	\
+      __XSTRING(__LINE__) "\n"), abort()))
+#define msg(s)		write(1, s, strlen(s))
+#define trace()		msg("ld-elf.so.1: " __XSTRING(__LINE__) "\n")
+
 #endif /* DEBUG_H */