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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_BUG_H#define _LINUX_BUG_H
#include <asm/bug.h>#include <linux/compiler.h>#include <linux/build_bug.h>
enum bug_trap_type { BUG_TRAP_TYPE_NONE = 0, BUG_TRAP_TYPE_WARN = 1, BUG_TRAP_TYPE_BUG = 2,};
struct pt_regs;
#ifdef __CHECKER__#define MAYBE_BUILD_BUG_ON(cond) (0)#else /* __CHECKER__ */
#define MAYBE_BUILD_BUG_ON(cond) \ do { \ if (__builtin_constant_p((cond))) \ BUILD_BUG_ON(cond); \ else \ BUG_ON(cond); \ } while (0)
#endif /* __CHECKER__ */
#ifdef CONFIG_GENERIC_BUG#include <asm-generic/bug.h>
static inline int is_warning_bug(const struct bug_entry *bug){ return bug->flags & BUGFLAG_WARNING;}
void bug_get_file_line(struct bug_entry *bug, const char **file, unsigned int *line);
struct bug_entry *find_bug(unsigned long bugaddr);
enum bug_trap_type report_bug(unsigned long bug_addr, struct pt_regs *regs);enum bug_trap_type report_bug_entry(struct bug_entry *bug, struct pt_regs *regs);
/* These are defined by the architecture */int is_valid_bugaddr(unsigned long addr);
void generic_bug_clear_once(void);
#else /* !CONFIG_GENERIC_BUG */
static inline void *find_bug(unsigned long bugaddr){ return NULL;}
static inline enum bug_trap_type report_bug(unsigned long bug_addr, struct pt_regs *regs){ return BUG_TRAP_TYPE_BUG;}
struct bug_entry;
static inline enum bug_trap_typereport_bug_entry(struct bug_entry *bug, struct pt_regs *regs){ return BUG_TRAP_TYPE_BUG;}
static inline void bug_get_file_line(struct bug_entry *bug, const char **file, unsigned int *line){ *file = NULL; *line = 0;}
static inline void generic_bug_clear_once(void) {}
#endif /* CONFIG_GENERIC_BUG */
#ifdef CONFIG_PRINTKvoid mem_dump_obj(void *object);#elsestatic inline void mem_dump_obj(void *object) {}#endif
/* * Since detected data corruption should stop operation on the affected * structures. Return value must be checked and sanely acted on by caller. */static inline __must_check bool check_data_corruption(bool v) { return v; }#define CHECK_DATA_CORRUPTION(condition, addr, fmt, ...) \ check_data_corruption(({ \ bool corruption = unlikely(condition); \ if (corruption) { \ if (addr) \ mem_dump_obj(addr); \ if (IS_ENABLED(CONFIG_BUG_ON_DATA_CORRUPTION)) { \ pr_err(fmt, ##__VA_ARGS__); \ BUG(); \ } else \ WARN(1, fmt, ##__VA_ARGS__); \ } \ corruption; \ }))
#endif /* _LINUX_BUG_H */