diff --git a/libexec/rtld-elf/rtld_printf.c b/libexec/rtld-elf/rtld_printf.c
index aedaf5104e3..48a148f72df 100644
--- a/libexec/rtld-elf/rtld_printf.c
+++ b/libexec/rtld-elf/rtld_printf.c
@@ -489,6 +489,18 @@ rtld_fdprintf(int fd, const char *fmt, ...)
 	return (retval);
 }
 
+int
+rtld_fdprintfx(int fd, const char *fmt, ...)
+{
+	va_list ap;
+	int retval;
+
+	va_start(ap, fmt);
+	retval = rtld_vfdprintf(fd, fmt, ap);
+	va_end(ap);
+	return (retval);
+}
+
 void
 rtld_fdputstr(int fd, const char *str)
 {
diff --git a/libexec/rtld-elf/rtld_printf.h b/libexec/rtld-elf/rtld_printf.h
index 3d3a0480ecc..e2fac948dc5 100644
--- a/libexec/rtld-elf/rtld_printf.h
+++ b/libexec/rtld-elf/rtld_printf.h
@@ -39,6 +39,7 @@ int rtld_snprintf(char *buf, size_t bufsize, const char *fmt, ...)
 int rtld_vsnprintf(char *buf, size_t bufsize, const char *fmt, va_list ap);
 int rtld_vfdprintf(int fd, const char *fmt, va_list ap);
 int rtld_fdprintf(int fd, const char *fmt, ...) __printflike(2, 3);
+int rtld_fdprintfx(int fd, const char *fmt, ...);
 void rtld_fdputstr(int fd, const char *str);
 void rtld_fdputchar(int fd, int c);