1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2c6557e7fSMartin Schwidefsky #ifndef _ASM_S390_BUG_H 3c6557e7fSMartin Schwidefsky #define _ASM_S390_BUG_H 4c6557e7fSMartin Schwidefsky 5c6557e7fSMartin Schwidefsky #include <linux/kernel.h> 6c6557e7fSMartin Schwidefsky 7c6557e7fSMartin Schwidefsky #ifdef CONFIG_BUG 8c6557e7fSMartin Schwidefsky 9c6557e7fSMartin Schwidefsky #ifdef CONFIG_DEBUG_BUGVERBOSE 10c6557e7fSMartin Schwidefsky 11c6557e7fSMartin Schwidefsky #define __EMIT_BUG(x) do { \ 126a3035daSHeiko Carstens asm_inline volatile( \ 1317248ea0SSven Schnelle "0: mc 0,0\n" \ 14c6557e7fSMartin Schwidefsky ".section .rodata.str,\"aMS\",@progbits,1\n" \ 1517248ea0SSven Schnelle "1: .asciz \""__FILE__"\"\n" \ 16c6557e7fSMartin Schwidefsky ".previous\n" \ 17e21f8bafSMartin Schwidefsky ".section __bug_table,\"awM\",@progbits,%2\n" \ 1817248ea0SSven Schnelle "2: .long 0b-2b,1b-2b\n" \ 19c6557e7fSMartin Schwidefsky " .short %0,%1\n" \ 2017248ea0SSven Schnelle " .org 2b+%2\n" \ 21c6557e7fSMartin Schwidefsky ".previous\n" \ 22c6557e7fSMartin Schwidefsky : : "i" (__LINE__), \ 23c6557e7fSMartin Schwidefsky "i" (x), \ 24c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 25c6557e7fSMartin Schwidefsky } while (0) 26c6557e7fSMartin Schwidefsky 27c6557e7fSMartin Schwidefsky #else /* CONFIG_DEBUG_BUGVERBOSE */ 28c6557e7fSMartin Schwidefsky 29c6557e7fSMartin Schwidefsky #define __EMIT_BUG(x) do { \ 306a3035daSHeiko Carstens asm_inline volatile( \ 3117248ea0SSven Schnelle "0: mc 0,0\n" \ 32e21f8bafSMartin Schwidefsky ".section __bug_table,\"awM\",@progbits,%1\n" \ 3317248ea0SSven Schnelle "1: .long 0b-1b\n" \ 34c6557e7fSMartin Schwidefsky " .short %0\n" \ 3517248ea0SSven Schnelle " .org 1b+%1\n" \ 36c6557e7fSMartin Schwidefsky ".previous\n" \ 37c6557e7fSMartin Schwidefsky : : "i" (x), \ 38c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 39c6557e7fSMartin Schwidefsky } while (0) 40c6557e7fSMartin Schwidefsky 41c6557e7fSMartin Schwidefsky #endif /* CONFIG_DEBUG_BUGVERBOSE */ 42c6557e7fSMartin Schwidefsky 432d6cd2a5SMartin Schwidefsky #define BUG() do { \ 442d6cd2a5SMartin Schwidefsky __EMIT_BUG(0); \ 455506e689SDavid Daney unreachable(); \ 462d6cd2a5SMartin Schwidefsky } while (0) 47c6557e7fSMartin Schwidefsky 4819d43626SPeter Zijlstra #define __WARN_FLAGS(flags) do { \ 4919d43626SPeter Zijlstra __EMIT_BUG(BUGFLAG_WARNING|(flags)); \ 50a9df8e32SHeiko Carstens } while (0) 51a9df8e32SHeiko Carstens 52c6557e7fSMartin Schwidefsky #define WARN_ON(x) ({ \ 53c6557e7fSMartin Schwidefsky int __ret_warn_on = !!(x); \ 54c6557e7fSMartin Schwidefsky if (__builtin_constant_p(__ret_warn_on)) { \ 55c6557e7fSMartin Schwidefsky if (__ret_warn_on) \ 56b2be0527SBen Hutchings __WARN(); \ 57c6557e7fSMartin Schwidefsky } else { \ 58c6557e7fSMartin Schwidefsky if (unlikely(__ret_warn_on)) \ 59b2be0527SBen Hutchings __WARN(); \ 60c6557e7fSMartin Schwidefsky } \ 61c6557e7fSMartin Schwidefsky unlikely(__ret_warn_on); \ 62c6557e7fSMartin Schwidefsky }) 63c6557e7fSMartin Schwidefsky 64c6557e7fSMartin Schwidefsky #define HAVE_ARCH_BUG 65c6557e7fSMartin Schwidefsky #define HAVE_ARCH_WARN_ON 66c6557e7fSMartin Schwidefsky #endif /* CONFIG_BUG */ 67c6557e7fSMartin Schwidefsky 68c6557e7fSMartin Schwidefsky #include <asm-generic/bug.h> 69c6557e7fSMartin Schwidefsky 70c6557e7fSMartin Schwidefsky #endif /* _ASM_S390_BUG_H */ 71