linux/include/linux/bug.h

/* 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 { … };

struct pt_regs;

#ifdef __CHECKER__
#define MAYBE_BUILD_BUG_ON …
#else /* __CHECKER__ */

#define MAYBE_BUILD_BUG_ON(cond) …

#endif	/* __CHECKER__ */

#ifdef CONFIG_GENERIC_BUG
#include <asm-generic/bug.h>

static inline int is_warning_bug(const struct bug_entry *bug)
{ … }

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);

/* 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 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 */

/*
 * 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) { … }
#define CHECK_DATA_CORRUPTION(condition, fmt, ...) …

#endif	/* _LINUX_BUG_H */