include/asm/unwind.h (6 lines of code) (raw):
#ifndef _ASM_UML_UNWIND_H
#define _ASM_UML_UNWIND_H
static inline void
unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
void *orc, size_t orc_size) {}
#endif /* _ASM_UML_UNWIND_H */