Linux/include/asm-generic/bug.h

Version: ~ [ linux-6.11-rc3 ] ~ [ linux-6.10.4 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.45 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.104 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.164 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.223 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.281 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.319 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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1 /* SPDX-License-Identifier: GPL-2.0 */ !! 1 #ifndef _M68K_BUG_H 2 #ifndef _ASM_GENERIC_BUG_H !! 2 #define _M68K_BUG_H 3 #define _ASM_GENERIC_BUG_H << 4 3 5 #include <linux/compiler.h> !! 4 #include <linux/config.h> 6 #include <linux/instrumentation.h> << 7 #include <linux/once_lite.h> << 8 5 9 #define CUT_HERE "------------[ << 10 << 11 #ifdef CONFIG_GENERIC_BUG << 12 #define BUGFLAG_WARNING (1 << 0) << 13 #define BUGFLAG_ONCE (1 << 1) << 14 #define BUGFLAG_DONE (1 << 2) << 15 #define BUGFLAG_NO_CUT_HERE (1 << 3) << 16 #define BUGFLAG_TAINT(taint) ((taint) << 8) << 17 #define BUG_GET_TAINT(bug) ((bug)->flags << 18 #endif << 19 << 20 #ifndef __ASSEMBLY__ << 21 #include <linux/panic.h> << 22 #include <linux/printk.h> << 23 << 24 struct warn_args; << 25 struct pt_regs; << 26 << 27 void __warn(const char *file, int line, void * << 28 struct pt_regs *regs, struct warn_ << 29 << 30 #ifdef CONFIG_BUG << 31 << 32 #ifdef CONFIG_GENERIC_BUG << 33 struct bug_entry { << 34 #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS << 35 unsigned long bug_addr; << 36 #else << 37 signed int bug_addr_disp; << 38 #endif << 39 #ifdef CONFIG_DEBUG_BUGVERBOSE 6 #ifdef CONFIG_DEBUG_BUGVERBOSE 40 #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS !! 7 #ifndef CONFIG_SUN3 41 const char *file; !! 8 #define BUG() do { \ >> 9 printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \ >> 10 asm volatile("illegal"); \ >> 11 } while (0) 42 #else 12 #else 43 signed int file_disp; << 44 #endif << 45 unsigned short line; << 46 #endif << 47 unsigned short flags; << 48 }; << 49 #endif /* CONFIG_GENERIC_BUG */ << 50 << 51 /* << 52 * Don't use BUG() or BUG_ON() unless there's << 53 * example might be detecting data structure c << 54 * of an operation that can't be backed out of << 55 * can somehow continue operating, perhaps wit << 56 * it's probably not BUG-worthy. << 57 * << 58 * If you're tempted to BUG(), think again: i << 59 * really the *only* solution? There are usua << 60 * users don't need to reboot ASAP and can mos << 61 */ << 62 #ifndef HAVE_ARCH_BUG << 63 #define BUG() do { \ 13 #define BUG() do { \ 64 printk("BUG: failure at %s:%d/%s()!\n" !! 14 printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \ 65 barrier_before_unreachable(); \ << 66 panic("BUG!"); \ 15 panic("BUG!"); \ 67 } while (0) 16 } while (0) 68 #endif 17 #endif 69 << 70 #ifndef HAVE_ARCH_BUG_ON << 71 #define BUG_ON(condition) do { if (unlikely(co << 72 #endif << 73 << 74 /* << 75 * WARN(), WARN_ON(), WARN_ON_ONCE(), and so o << 76 * significant kernel issues that need prompt << 77 * appear at runtime. << 78 * << 79 * Do not use these macros when checking for i << 80 * (e.g. invalid system call arguments, or inv << 81 * network/devices), and on transient conditio << 82 * These macros should be used for recoverable << 83 * For invalid external inputs, transient cond << 84 * pr_err[_once/_ratelimited]() followed by du << 85 * Do not include "BUG"/"WARNING" in format st << 86 * conditions distinguishable from kernel issu << 87 * << 88 * Use the versions with printk format strings << 89 */ << 90 extern __printf(4, 5) << 91 void warn_slowpath_fmt(const char *file, const << 92 const char *fmt, ...); << 93 extern __printf(1, 2) void __warn_printk(const << 94 << 95 #ifndef __WARN_FLAGS << 96 #define __WARN() __WARN_printf( << 97 #define __WARN_printf(taint, arg...) do { << 98 instrumentation_begin(); << 99 warn_slowpath_fmt(__FILE__, __ << 100 instrumentation_end(); << 101 } while (0) << 102 #else 18 #else 103 #define __WARN() __WARN_FLAGS(B !! 19 #define BUG() do { \ 104 #define __WARN_printf(taint, arg...) do { !! 20 asm volatile("illegal"); \ 105 instrumentation_begin(); << 106 __warn_printk(arg); << 107 __WARN_FLAGS(BUGFLAG_NO_CUT_HE << 108 instrumentation_end(); << 109 } while (0) << 110 #define WARN_ON_ONCE(condition) ({ << 111 int __ret_warn_on = !!(condition); << 112 if (unlikely(__ret_warn_on)) << 113 __WARN_FLAGS(BUGFLAG_ONCE | << 114 BUGFLAG_TAINT(TAI << 115 unlikely(__ret_warn_on); << 116 }) << 117 #endif << 118 << 119 /* used internally by panic.c */ << 120 << 121 #ifndef WARN_ON << 122 #define WARN_ON(condition) ({ << 123 int __ret_warn_on = !!(condition); << 124 if (unlikely(__ret_warn_on)) << 125 __WARN(); << 126 unlikely(__ret_warn_on); << 127 }) << 128 #endif << 129 << 130 #ifndef WARN << 131 #define WARN(condition, format...) ({ << 132 int __ret_warn_on = !!(condition); << 133 if (unlikely(__ret_warn_on)) << 134 __WARN_printf(TAINT_WARN, form << 135 unlikely(__ret_warn_on); << 136 }) << 137 #endif << 138 << 139 #define WARN_TAINT(condition, taint, format... << 140 int __ret_warn_on = !!(condition); << 141 if (unlikely(__ret_warn_on)) << 142 __WARN_printf(taint, format); << 143 unlikely(__ret_warn_on); << 144 }) << 145 << 146 #ifndef WARN_ON_ONCE << 147 #define WARN_ON_ONCE(condition) << 148 DO_ONCE_LITE_IF(condition, WARN_ON, 1) << 149 #endif << 150 << 151 #define WARN_ONCE(condition, format...) << 152 DO_ONCE_LITE_IF(condition, WARN, 1, fo << 153 << 154 #define WARN_TAINT_ONCE(condition, taint, form << 155 DO_ONCE_LITE_IF(condition, WARN_TAINT, << 156 << 157 #else /* !CONFIG_BUG */ << 158 #ifndef HAVE_ARCH_BUG << 159 #define BUG() do { \ << 160 do {} while (1); \ << 161 unreachable(); \ << 162 } while (0) 21 } while (0) 163 #endif 22 #endif 164 23 165 #ifndef HAVE_ARCH_BUG_ON !! 24 #define BUG_ON(condition) do { \ 166 #define BUG_ON(condition) do { if (unlikely(co !! 25 if (unlikely((condition)!=0)) \ 167 #endif !! 26 BUG(); \ >> 27 } while(0) 168 28 169 #ifndef HAVE_ARCH_WARN_ON !! 29 #define PAGE_BUG(page) do { \ 170 #define WARN_ON(condition) ({ !! 30 BUG(); \ 171 int __ret_warn_on = !!(condition); !! 31 } while (0) 172 unlikely(__ret_warn_on); << 173 }) << 174 #endif << 175 << 176 #ifndef WARN << 177 #define WARN(condition, format...) ({ << 178 int __ret_warn_on = !!(condition); << 179 no_printk(format); << 180 unlikely(__ret_warn_on); << 181 }) << 182 #endif << 183 << 184 #define WARN_ON_ONCE(condition) WARN_ON(condit << 185 #define WARN_ONCE(condition, format...) WARN(c << 186 #define WARN_TAINT(condition, taint, format... << 187 #define WARN_TAINT_ONCE(condition, taint, form << 188 << 189 #endif << 190 << 191 /* << 192 * WARN_ON_SMP() is for cases that the warning << 193 * meaningless for !SMP or may even cause fail << 194 * It can also be used with values that are on << 195 * on SMP: << 196 * << 197 * struct foo { << 198 * [...] << 199 * #ifdef CONFIG_SMP << 200 * int bar; << 201 * #endif << 202 * }; << 203 * << 204 * void func(struct foo *zoot) << 205 * { << 206 * WARN_ON_SMP(!zoot->bar); << 207 * << 208 * For CONFIG_SMP, WARN_ON_SMP() should act th << 209 * and should be a nop and return false for un << 210 * << 211 * if (WARN_ON_SMP(x)) returns true only when << 212 * and x is true. << 213 */ << 214 #ifdef CONFIG_SMP << 215 # define WARN_ON_SMP(x) WARN_O << 216 #else << 217 /* << 218 * Use of ({0;}) because WARN_ON_SMP(x) may be << 219 * a stand alone line statement or as a condit << 220 * statement. << 221 * A simple "" would cause gcc to give a "stat << 222 * warning. << 223 */ << 224 # define WARN_ON_SMP(x) ({0;}) << 225 #endif << 226 32 227 #endif /* __ASSEMBLY__ */ !! 33 #define WARN_ON(condition) do { \ >> 34 if (unlikely((condition)!=0)) { \ >> 35 printk("Badness in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \ >> 36 dump_stack(); \ >> 37 } \ >> 38 } while (0) 228 39 229 #endif 40 #endif 230 41

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TOMOYO Linux Cross Reference
Linux/include/asm-generic/bug.h

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Differences between /include/asm-generic/bug.h (Version linux-6.11-rc3) and /include/asm-m68k/bug.h (Version linux-2.6.0)

TOMOYO Linux Cross Reference Linux/include/asm-generic/bug.h

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Differences between /include/asm-generic/bug.h (Version linux-6.11-rc3) and /include/asm-m68k/bug.h (Version linux-2.6.0)

TOMOYO Linux Cross Reference
Linux/include/asm-generic/bug.h