1c6557e7fSMartin Schwidefsky #ifndef _ASM_S390_BUG_H 2c6557e7fSMartin Schwidefsky #define _ASM_S390_BUG_H 3c6557e7fSMartin Schwidefsky 4c6557e7fSMartin Schwidefsky #include <linux/kernel.h> 5c6557e7fSMartin Schwidefsky 6c6557e7fSMartin Schwidefsky #ifdef CONFIG_BUG 7c6557e7fSMartin Schwidefsky 8c6557e7fSMartin Schwidefsky #ifdef CONFIG_64BIT 9c6557e7fSMartin Schwidefsky #define S390_LONG ".quad" 10c6557e7fSMartin Schwidefsky #else 11c6557e7fSMartin Schwidefsky #define S390_LONG ".long" 12c6557e7fSMartin Schwidefsky #endif 13c6557e7fSMartin Schwidefsky 14c6557e7fSMartin Schwidefsky #ifdef CONFIG_DEBUG_BUGVERBOSE 15c6557e7fSMartin Schwidefsky 16c6557e7fSMartin Schwidefsky #define __EMIT_BUG(x) do { \ 17c6557e7fSMartin Schwidefsky asm volatile( \ 18c6557e7fSMartin Schwidefsky "0: j 0b+2\n" \ 19c6557e7fSMartin Schwidefsky "1:\n" \ 20c6557e7fSMartin Schwidefsky ".section .rodata.str,\"aMS\",@progbits,1\n" \ 21c6557e7fSMartin Schwidefsky "2: .asciz \""__FILE__"\"\n" \ 22c6557e7fSMartin Schwidefsky ".previous\n" \ 23c6557e7fSMartin Schwidefsky ".section __bug_table,\"a\"\n" \ 24c6557e7fSMartin Schwidefsky "3:\t" S390_LONG "\t1b,2b\n" \ 25c6557e7fSMartin Schwidefsky " .short %0,%1\n" \ 26c6557e7fSMartin Schwidefsky " .org 3b+%2\n" \ 27c6557e7fSMartin Schwidefsky ".previous\n" \ 28c6557e7fSMartin Schwidefsky : : "i" (__LINE__), \ 29c6557e7fSMartin Schwidefsky "i" (x), \ 30c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 31c6557e7fSMartin Schwidefsky } while (0) 32c6557e7fSMartin Schwidefsky 33c6557e7fSMartin Schwidefsky #else /* CONFIG_DEBUG_BUGVERBOSE */ 34c6557e7fSMartin Schwidefsky 35c6557e7fSMartin Schwidefsky #define __EMIT_BUG(x) do { \ 36c6557e7fSMartin Schwidefsky asm volatile( \ 37c6557e7fSMartin Schwidefsky "0: j 0b+2\n" \ 38c6557e7fSMartin Schwidefsky "1:\n" \ 39c6557e7fSMartin Schwidefsky ".section __bug_table,\"a\"\n" \ 40c6557e7fSMartin Schwidefsky "2:\t" S390_LONG "\t1b\n" \ 41c6557e7fSMartin Schwidefsky " .short %0\n" \ 42c6557e7fSMartin Schwidefsky " .org 2b+%1\n" \ 43c6557e7fSMartin Schwidefsky ".previous\n" \ 44c6557e7fSMartin Schwidefsky : : "i" (x), \ 45c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 46c6557e7fSMartin Schwidefsky } while (0) 47c6557e7fSMartin Schwidefsky 48c6557e7fSMartin Schwidefsky #endif /* CONFIG_DEBUG_BUGVERBOSE */ 49c6557e7fSMartin Schwidefsky 502d6cd2a5SMartin Schwidefsky #define BUG() do { \ 512d6cd2a5SMartin Schwidefsky __EMIT_BUG(0); \ 522d6cd2a5SMartin Schwidefsky for (;;); \ 532d6cd2a5SMartin Schwidefsky } while (0) 54c6557e7fSMartin Schwidefsky 55c6557e7fSMartin Schwidefsky #define WARN_ON(x) ({ \ 56c6557e7fSMartin Schwidefsky int __ret_warn_on = !!(x); \ 57c6557e7fSMartin Schwidefsky if (__builtin_constant_p(__ret_warn_on)) { \ 58c6557e7fSMartin Schwidefsky if (__ret_warn_on) \ 59c6557e7fSMartin Schwidefsky __EMIT_BUG(BUGFLAG_WARNING); \ 60c6557e7fSMartin Schwidefsky } else { \ 61c6557e7fSMartin Schwidefsky if (unlikely(__ret_warn_on)) \ 62c6557e7fSMartin Schwidefsky __EMIT_BUG(BUGFLAG_WARNING); \ 63c6557e7fSMartin Schwidefsky } \ 64c6557e7fSMartin Schwidefsky unlikely(__ret_warn_on); \ 65c6557e7fSMartin Schwidefsky }) 66c6557e7fSMartin Schwidefsky 67c6557e7fSMartin Schwidefsky #define HAVE_ARCH_BUG 68c6557e7fSMartin Schwidefsky #define HAVE_ARCH_WARN_ON 69c6557e7fSMartin Schwidefsky #endif /* CONFIG_BUG */ 70c6557e7fSMartin Schwidefsky 71c6557e7fSMartin Schwidefsky #include <asm-generic/bug.h> 72c6557e7fSMartin Schwidefsky 73c6557e7fSMartin Schwidefsky #endif /* _ASM_S390_BUG_H */ 74