+#ifndef _LTTNG_WRAPPER_KALLSYMS_H
+#define _LTTNG_WRAPPER_KALLSYMS_H
+
+#include <linux/kallsyms.h>
+
+/*
+ * PowerPC ABIv1 needs KALLSYMS_ALL to get the function descriptor,
+ * which is needed to perform the function call.
+ */
+#if defined(CONFIG_PPC64) && (!defined(_CALL_ELF) || _CALL_ELF < 2)
+# ifndef CONFIG_KALLSYMS_ALL
+# error "LTTng-modules requires CONFIG_KALLSYMS_ALL on PowerPC ABIv1"
+# endif
+#endif
+