1 #ifndef _PARISC_BUG_H 2 #define _PARISC_BUG_H 3 4 /* 5 * Tell the user there is some problem. 6 * The offending file and line are encoded in the __bug_table section. 7 */ 8 9 #ifdef CONFIG_BUG 10 #define HAVE_ARCH_BUG 11 #define HAVE_ARCH_WARN_ON 12 13 /* the break instruction is used as BUG() marker. */ 14 #define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff" 15 #define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */ 16 17 #if defined(CONFIG_64BIT) 18 #define ASM_WORD_INSN ".dword\t" 19 #else 20 #define ASM_WORD_INSN ".word\t" 21 #endif 22 23 #ifdef CONFIG_DEBUG_BUGVERBOSE 24 #define BUG() \ 25 do { \ 26 asm volatile("\n" \ 27 "1:\t" PARISC_BUG_BREAK_ASM "\n" \ 28 "\t.pushsection __bug_table,\"a\"\n" \ 29 "2:\t" ASM_WORD_INSN "1b, %c0\n" \ 30 "\t.short %c1, %c2\n" \ 31 "\t.org 2b+%c3\n" \ 32 "\t.popsection" \ 33 : : "i" (__FILE__), "i" (__LINE__), \ 34 "i" (0), "i" (sizeof(struct bug_entry)) ); \ 35 unreachable(); \ 36 } while(0) 37 38 #else 39 #define BUG() \ 40 do { \ 41 asm volatile(PARISC_BUG_BREAK_ASM : : ); \ 42 unreachable(); \ 43 } while(0) 44 #endif 45 46 #ifdef CONFIG_DEBUG_BUGVERBOSE 47 #define __WARN() \ 48 do { \ 49 asm volatile("\n" \ 50 "1:\t" PARISC_BUG_BREAK_ASM "\n" \ 51 "\t.pushsection __bug_table,\"a\"\n" \ 52 "2:\t" ASM_WORD_INSN "1b, %c0\n" \ 53 "\t.short %c1, %c2\n" \ 54 "\t.org 2b+%c3\n" \ 55 "\t.popsection" \ 56 : : "i" (__FILE__), "i" (__LINE__), \ 57 "i" (BUGFLAG_WARNING), \ 58 "i" (sizeof(struct bug_entry)) ); \ 59 } while(0) 60 #else 61 #define __WARN() \ 62 do { \ 63 asm volatile("\n" \ 64 "1:\t" PARISC_BUG_BREAK_ASM "\n" \ 65 "\t.pushsection __bug_table,\"a\"\n" \ 66 "2:\t" ASM_WORD_INSN "1b\n" \ 67 "\t.short %c0\n" \ 68 "\t.org 2b+%c1\n" \ 69 "\t.popsection" \ 70 : : "i" (BUGFLAG_WARNING), \ 71 "i" (sizeof(struct bug_entry)) ); \ 72 } while(0) 73 #endif 74 75 76 #define WARN_ON(x) ({ \ 77 int __ret_warn_on = !!(x); \ 78 if (__builtin_constant_p(__ret_warn_on)) { \ 79 if (__ret_warn_on) \ 80 __WARN(); \ 81 } else { \ 82 if (unlikely(__ret_warn_on)) \ 83 __WARN(); \ 84 } \ 85 unlikely(__ret_warn_on); \ 86 }) 87 88 #endif 89 90 #include <asm-generic/bug.h> 91 #endif 92 93