1 #ifndef _ASM_S390_BUG_H 2 #define _ASM_S390_BUG_H 3 4 #include <linux/kernel.h> 5 6 #ifdef CONFIG_BUG 7 8 #ifdef CONFIG_64BIT 9 #define S390_LONG ".quad" 10 #else 11 #define S390_LONG ".long" 12 #endif 13 14 #ifdef CONFIG_DEBUG_BUGVERBOSE 15 16 #define __EMIT_BUG(x) do { \ 17 asm volatile( \ 18 "0: j 0b+2\n" \ 19 "1:\n" \ 20 ".section .rodata.str,\"aMS\",@progbits,1\n" \ 21 "2: .asciz \""__FILE__"\"\n" \ 22 ".previous\n" \ 23 ".section __bug_table,\"a\"\n" \ 24 "3:\t" S390_LONG "\t1b,2b\n" \ 25 " .short %0,%1\n" \ 26 " .org 3b+%2\n" \ 27 ".previous\n" \ 28 : : "i" (__LINE__), \ 29 "i" (x), \ 30 "i" (sizeof(struct bug_entry))); \ 31 } while (0) 32 33 #else /* CONFIG_DEBUG_BUGVERBOSE */ 34 35 #define __EMIT_BUG(x) do { \ 36 asm volatile( \ 37 "0: j 0b+2\n" \ 38 "1:\n" \ 39 ".section __bug_table,\"a\"\n" \ 40 "2:\t" S390_LONG "\t1b\n" \ 41 " .short %0\n" \ 42 " .org 2b+%1\n" \ 43 ".previous\n" \ 44 : : "i" (x), \ 45 "i" (sizeof(struct bug_entry))); \ 46 } while (0) 47 48 #endif /* CONFIG_DEBUG_BUGVERBOSE */ 49 50 #define BUG() do { \ 51 __EMIT_BUG(0); \ 52 unreachable(); \ 53 } while (0) 54 55 #define WARN_ON(x) ({ \ 56 int __ret_warn_on = !!(x); \ 57 if (__builtin_constant_p(__ret_warn_on)) { \ 58 if (__ret_warn_on) \ 59 __EMIT_BUG(BUGFLAG_WARNING); \ 60 } else { \ 61 if (unlikely(__ret_warn_on)) \ 62 __EMIT_BUG(BUGFLAG_WARNING); \ 63 } \ 64 unlikely(__ret_warn_on); \ 65 }) 66 67 #define HAVE_ARCH_BUG 68 #define HAVE_ARCH_WARN_ON 69 #endif /* CONFIG_BUG */ 70 71 #include <asm-generic/bug.h> 72 73 #endif /* _ASM_S390_BUG_H */ 74