1 files changed, 59 insertions, 0 deletions

diff --git a/libexec/rtld-elf/debug.h b/libexec/rtld-elf/debug.h
new file mode 100644
index 000000000000..2600651997e8
--- /dev/null
+++ b/libexec/rtld-elf/debug.h
@@ -0,0 +1,59 @@
+/*-
+ * Copyright 1996-1998 John D. Polstra.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Support for printing debugging messages.
+ */
+
+#ifndef DEBUG_H
+#define DEBUG_H 1
+
+#ifndef __GNUC__
+#error "This file must be compiled with GCC"
+#endif
+
+#include <sys/cdefs.h>
+
+#include <string.h>
+#include <unistd.h>
+
+extern void debug_printf(const char *, ...) __printflike(1, 2);
+extern int debug;
+
+#ifdef DEBUG
+#define dbg(format, args...)	debug_printf(format , ## args)
+#else
+#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 */