1deae26bfSKyle McMartin #ifndef _PARISC_BUG_H 2deae26bfSKyle McMartin #define _PARISC_BUG_H 3deae26bfSKyle McMartin 4deae26bfSKyle McMartin /* 5deae26bfSKyle McMartin * Tell the user there is some problem. 6deae26bfSKyle McMartin * The offending file and line are encoded in the __bug_table section. 7deae26bfSKyle McMartin */ 8deae26bfSKyle McMartin 9deae26bfSKyle McMartin #ifdef CONFIG_BUG 10deae26bfSKyle McMartin #define HAVE_ARCH_BUG 11deae26bfSKyle McMartin #define HAVE_ARCH_WARN_ON 12deae26bfSKyle McMartin 13deae26bfSKyle McMartin /* the break instruction is used as BUG() marker. */ 14deae26bfSKyle McMartin #define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff" 15deae26bfSKyle McMartin #define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */ 16deae26bfSKyle McMartin 17deae26bfSKyle McMartin #if defined(CONFIG_64BIT) 18deae26bfSKyle McMartin #define ASM_WORD_INSN ".dword\t" 19deae26bfSKyle McMartin #else 20deae26bfSKyle McMartin #define ASM_WORD_INSN ".word\t" 21deae26bfSKyle McMartin #endif 22deae26bfSKyle McMartin 23deae26bfSKyle McMartin #ifdef CONFIG_DEBUG_BUGVERBOSE 24deae26bfSKyle McMartin #define BUG() \ 25deae26bfSKyle McMartin do { \ 26deae26bfSKyle McMartin asm volatile("\n" \ 27deae26bfSKyle McMartin "1:\t" PARISC_BUG_BREAK_ASM "\n" \ 28deae26bfSKyle McMartin "\t.pushsection __bug_table,\"a\"\n" \ 29deae26bfSKyle McMartin "2:\t" ASM_WORD_INSN "1b, %c0\n" \ 30deae26bfSKyle McMartin "\t.short %c1, %c2\n" \ 31deae26bfSKyle McMartin "\t.org 2b+%c3\n" \ 32deae26bfSKyle McMartin "\t.popsection" \ 33deae26bfSKyle McMartin : : "i" (__FILE__), "i" (__LINE__), \ 34deae26bfSKyle McMartin "i" (0), "i" (sizeof(struct bug_entry)) ); \ 3505920797SDavid Daney unreachable(); \ 36deae26bfSKyle McMartin } while(0) 37deae26bfSKyle McMartin 38deae26bfSKyle McMartin #else 39deae26bfSKyle McMartin #define BUG() \ 40deae26bfSKyle McMartin do { \ 41deae26bfSKyle McMartin asm volatile(PARISC_BUG_BREAK_ASM : : ); \ 4205920797SDavid Daney unreachable(); \ 43deae26bfSKyle McMartin } while(0) 44deae26bfSKyle McMartin #endif 45deae26bfSKyle McMartin 46deae26bfSKyle McMartin #ifdef CONFIG_DEBUG_BUGVERBOSE 47deae26bfSKyle McMartin #define __WARN() \ 48deae26bfSKyle McMartin do { \ 49deae26bfSKyle McMartin asm volatile("\n" \ 50deae26bfSKyle McMartin "1:\t" PARISC_BUG_BREAK_ASM "\n" \ 51deae26bfSKyle McMartin "\t.pushsection __bug_table,\"a\"\n" \ 52deae26bfSKyle McMartin "2:\t" ASM_WORD_INSN "1b, %c0\n" \ 53deae26bfSKyle McMartin "\t.short %c1, %c2\n" \ 54deae26bfSKyle McMartin "\t.org 2b+%c3\n" \ 55deae26bfSKyle McMartin "\t.popsection" \ 56deae26bfSKyle McMartin : : "i" (__FILE__), "i" (__LINE__), \ 57deae26bfSKyle McMartin "i" (BUGFLAG_WARNING), \ 58deae26bfSKyle McMartin "i" (sizeof(struct bug_entry)) ); \ 59deae26bfSKyle McMartin } while(0) 60deae26bfSKyle McMartin #else 61deae26bfSKyle McMartin #define __WARN() \ 62deae26bfSKyle McMartin do { \ 63deae26bfSKyle McMartin asm volatile("\n" \ 64deae26bfSKyle McMartin "1:\t" PARISC_BUG_BREAK_ASM "\n" \ 65deae26bfSKyle McMartin "\t.pushsection __bug_table,\"a\"\n" \ 66deae26bfSKyle McMartin "2:\t" ASM_WORD_INSN "1b\n" \ 67deae26bfSKyle McMartin "\t.short %c0\n" \ 68deae26bfSKyle McMartin "\t.org 2b+%c1\n" \ 69deae26bfSKyle McMartin "\t.popsection" \ 70deae26bfSKyle McMartin : : "i" (BUGFLAG_WARNING), \ 71deae26bfSKyle McMartin "i" (sizeof(struct bug_entry)) ); \ 72deae26bfSKyle McMartin } while(0) 73deae26bfSKyle McMartin #endif 74deae26bfSKyle McMartin 75deae26bfSKyle McMartin 76deae26bfSKyle McMartin #define WARN_ON(x) ({ \ 77deae26bfSKyle McMartin int __ret_warn_on = !!(x); \ 78deae26bfSKyle McMartin if (__builtin_constant_p(__ret_warn_on)) { \ 79deae26bfSKyle McMartin if (__ret_warn_on) \ 80deae26bfSKyle McMartin __WARN(); \ 81deae26bfSKyle McMartin } else { \ 82deae26bfSKyle McMartin if (unlikely(__ret_warn_on)) \ 83deae26bfSKyle McMartin __WARN(); \ 84deae26bfSKyle McMartin } \ 85deae26bfSKyle McMartin unlikely(__ret_warn_on); \ 86deae26bfSKyle McMartin }) 87deae26bfSKyle McMartin 88deae26bfSKyle McMartin #endif 89deae26bfSKyle McMartin 90deae26bfSKyle McMartin #include <asm-generic/bug.h> 91deae26bfSKyle McMartin #endif 92deae26bfSKyle McMartin 93