1#ifndef _ASM_GENERIC_BUG_H 2#define _ASM_GENERIC_BUG_H 3 4#include <linux/compiler.h> 5 6#ifdef CONFIG_BUG 7 8#ifdef CONFIG_GENERIC_BUG 9#ifndef __ASSEMBLY__ 10struct bug_entry { 11 unsigned long bug_addr; 12#ifdef CONFIG_DEBUG_BUGVERBOSE 13 const char *file; 14 unsigned short line; 15#endif 16 unsigned short flags; 17}; 18#endif /* __ASSEMBLY__ */ 19 20#define BUGFLAG_WARNING (1<<0) 21#endif /* CONFIG_GENERIC_BUG */ 22 23#ifndef HAVE_ARCH_BUG 24#define BUG() do { \ 25 printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ 26 panic("BUG!"); \ 27} while (0) 28#endif 29 30#ifndef HAVE_ARCH_BUG_ON 31#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) 32#endif 33 34#ifndef HAVE_ARCH_WARN_ON 35#define WARN_ON(condition) ({ \ 36 typeof(condition) __ret_warn_on = (condition); \ 37 if (unlikely(__ret_warn_on)) { \ 38 printk("WARNING: at %s:%d %s()\n", __FILE__, \ 39 __LINE__, __FUNCTION__); \ 40 dump_stack(); \ 41 } \ 42 unlikely(__ret_warn_on); \ 43}) 44#endif 45 46#else /* !CONFIG_BUG */ 47#ifndef HAVE_ARCH_BUG 48#define BUG() 49#endif 50 51#ifndef HAVE_ARCH_BUG_ON 52#define BUG_ON(condition) do { if (condition) ; } while(0) 53#endif 54 55#ifndef HAVE_ARCH_WARN_ON 56#define WARN_ON(condition) ({ \ 57 typeof(condition) __ret_warn_on = (condition); \ 58 unlikely(__ret_warn_on); \ 59}) 60#endif 61#endif 62 63#define WARN_ON_ONCE(condition) ({ \ 64 static int __warned; \ 65 typeof(condition) __ret_warn_once = (condition); \ 66 \ 67 if (unlikely(__ret_warn_once)) \ 68 if (WARN_ON(!__warned)) \ 69 __warned = 1; \ 70 unlikely(__ret_warn_once); \ 71}) 72 73#ifdef CONFIG_SMP 74# define WARN_ON_SMP(x) WARN_ON(x) 75#else 76# define WARN_ON_SMP(x) do { } while (0) 77#endif 78 79#endif 80