diff --git a/headers/private/kernel/debug.h b/headers/private/kernel/debug.h
index c5d7a1228a..8018476358 100755
--- a/headers/private/kernel/debug.h
+++ b/headers/private/kernel/debug.h
@@ -12,14 +12,6 @@
 struct kernel_args;
 
 
-extern int dbg_register_file[SMP_MAX_CPUS][14];
-	/* XXXmpetit -- must be made generic */
-
-int  dbg_init(struct kernel_args *ka);
-int  dbg_init2(struct kernel_args *ka);
-char dbg_putch(char c);
-void dbg_puts(const char *s);
-
 #if DEBUG 
 #	define ASSERT(x) \
 	if (x) {} else { panic("ASSERT FAILED (%s:%d): %s\n", __FILE__, __LINE__, #x); }
@@ -27,4 +19,22 @@ void dbg_puts(const char *s);
 #	define ASSERT(x) 
 #endif
 
+extern int dbg_register_file[SMP_MAX_CPUS][14];
+	/* XXXmpetit -- must be made generic */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int	dbg_init(struct kernel_args *ka);
+extern int	dbg_init2(struct kernel_args *ka);
+extern char	dbg_putch(char c);
+extern void	dbg_puts(const char *s);
+
+extern void _user_debug_output(const char *userString);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/* _KERNEL_DEBUG_H */
diff --git a/headers/private/kernel/ksyscalls.h b/headers/private/kernel/ksyscalls.h
index 325420feea..2fbffc9cde 100755
--- a/headers/private/kernel/ksyscalls.h
+++ b/headers/private/kernel/ksyscalls.h
@@ -148,6 +148,7 @@ enum {
 	SYSCALL_ATOMIC_OR64,
 	SYSCALL_ATOMIC_GET64,
 	SYSCALL_SET_REAL_TIME_CLOCK,
+	SYSCALL_DEBUG_OUTPUT,
 };
 
 int syscall_dispatcher(unsigned long call_num, void *arg_buffer, uint64 *call_ret);
diff --git a/headers/private/kernel/syscalls.h b/headers/private/kernel/syscalls.h
index 963d54d6e9..65e9c745cf 100644
--- a/headers/private/kernel/syscalls.h
+++ b/headers/private/kernel/syscalls.h
@@ -134,6 +134,8 @@ int sys_getenv(const char *, char **);
 /* region prototypes */
 area_id sys_find_region_by_name(const char *);
 
+void _kern_debug_output(const char *message);
+
 /* This is a real BSD'ism :) Basically it returns the size of the
  * descriptor table for the current process as an integer.
  */
diff --git a/src/kernel/libroot/os/syscalls.S b/src/kernel/libroot/os/syscalls.S
index f7f782280a..2298026f9e 100644
--- a/src/kernel/libroot/os/syscalls.S
+++ b/src/kernel/libroot/os/syscalls.S
@@ -164,6 +164,7 @@ SYSCALL6(sys_sysctl, 71)
 //SYSCALL3(sys_socket, 72)
 SYSCALL3(sys_setenv, 79)
 SYSCALL2(sys_getenv, 80)
+SYSCALL1(_kern_debug_output, 139)
 
 /* atomic calls */
 SYSCALL2(_kern_atomic_set, 126)