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 5b4a461e7SHerbert Xu #include <linux/compiler.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" \ 18*69505e3dSJosh Poimboeuf "2: .long 0b-.\n" \ 19*69505e3dSJosh Poimboeuf " .long 1b-.\n" \ 20c6557e7fSMartin Schwidefsky " .short %0,%1\n" \ 2117248ea0SSven Schnelle " .org 2b+%2\n" \ 22c6557e7fSMartin Schwidefsky ".previous\n" \ 23c6557e7fSMartin Schwidefsky : : "i" (__LINE__), \ 24c6557e7fSMartin Schwidefsky "i" (x), \ 25c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 26c6557e7fSMartin Schwidefsky } while (0) 27c6557e7fSMartin Schwidefsky 28c6557e7fSMartin Schwidefsky #else /* CONFIG_DEBUG_BUGVERBOSE */ 29c6557e7fSMartin Schwidefsky 30c6557e7fSMartin Schwidefsky #define __EMIT_BUG(x) do { \ 316a3035daSHeiko Carstens asm_inline volatile( \ 3217248ea0SSven Schnelle "0: mc 0,0\n" \ 33e21f8bafSMartin Schwidefsky ".section __bug_table,\"awM\",@progbits,%1\n" \ 34*69505e3dSJosh Poimboeuf "1: .long 0b-.\n" \ 35c6557e7fSMartin Schwidefsky " .short %0\n" \ 3617248ea0SSven Schnelle " .org 1b+%1\n" \ 37c6557e7fSMartin Schwidefsky ".previous\n" \ 38c6557e7fSMartin Schwidefsky : : "i" (x), \ 39c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 40c6557e7fSMartin Schwidefsky } while (0) 41c6557e7fSMartin Schwidefsky 42c6557e7fSMartin Schwidefsky #endif /* CONFIG_DEBUG_BUGVERBOSE */ 43c6557e7fSMartin Schwidefsky 442d6cd2a5SMartin Schwidefsky #define BUG() do { \ 452d6cd2a5SMartin Schwidefsky __EMIT_BUG(0); \ 465506e689SDavid Daney unreachable(); \ 472d6cd2a5SMartin Schwidefsky } while (0) 48c6557e7fSMartin Schwidefsky 4919d43626SPeter Zijlstra #define __WARN_FLAGS(flags) do { \ 5019d43626SPeter Zijlstra __EMIT_BUG(BUGFLAG_WARNING|(flags)); \ 51a9df8e32SHeiko Carstens } while (0) 52a9df8e32SHeiko Carstens 53c6557e7fSMartin Schwidefsky #define WARN_ON(x) ({ \ 54c6557e7fSMartin Schwidefsky int __ret_warn_on = !!(x); \ 55c6557e7fSMartin Schwidefsky if (__builtin_constant_p(__ret_warn_on)) { \ 56c6557e7fSMartin Schwidefsky if (__ret_warn_on) \ 57b2be0527SBen Hutchings __WARN(); \ 58c6557e7fSMartin Schwidefsky } else { \ 59c6557e7fSMartin Schwidefsky if (unlikely(__ret_warn_on)) \ 60b2be0527SBen Hutchings __WARN(); \ 61c6557e7fSMartin Schwidefsky } \ 62c6557e7fSMartin Schwidefsky unlikely(__ret_warn_on); \ 63c6557e7fSMartin Schwidefsky }) 64c6557e7fSMartin Schwidefsky 65c6557e7fSMartin Schwidefsky #define HAVE_ARCH_BUG 66c6557e7fSMartin Schwidefsky #define HAVE_ARCH_WARN_ON 67c6557e7fSMartin Schwidefsky #endif /* CONFIG_BUG */ 68c6557e7fSMartin Schwidefsky 69c6557e7fSMartin Schwidefsky #include <asm-generic/bug.h> 70c6557e7fSMartin Schwidefsky 71c6557e7fSMartin Schwidefsky #endif /* _ASM_S390_BUG_H */ 72