#ifndef _LINUX_UNWIND_H #define _LINUX_UNWIND_H /* * Copyright (C) 2002-2006 Novell, Inc. * Jan Beulich <jbeulich@novell.com> * This code is released under version 2 of the GNU GPL. * * A simple API for unwinding kernel stacks. This is used for * debugging and error reporting purposes. The kernel doesn't need * full-blown stack unwinding with all the bells and whistles, so there * is not much point in implementing the full Dwarf2 unwind API. */ struct module; struct unwind_frame_info {}; static inline void unwind_init(void) {} static inline void unwind_setup(void) {} #ifdef CONFIG_MODULES static inline void *unwind_add_table(struct module *mod, const void *table_start, unsigned long table_size) { return NULL; } static inline void unwind_remove_table(void *handle, int init_only) { } #endif static inline int unwind_init_frame_info(struct unwind_frame_info *info, struct task_struct *tsk, const struct pt_regs *regs) { return -ENOSYS; } static inline int unwind_init_blocked(struct unwind_frame_info *info, struct task_struct *tsk) { return -ENOSYS; } static inline int unwind_init_running(struct unwind_frame_info *info, asmlinkage int (*cb)(struct unwind_frame_info *, void *arg), void *arg) { return -ENOSYS; } static inline int unwind(struct unwind_frame_info *info) { return -ENOSYS; } static inline int unwind_to_user(struct unwind_frame_info *info) { return -ENOSYS; } #endif /* _LINUX_UNWIND_H */