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( \ 13c6557e7fSMartin Schwidefsky "0: j 0b+2\n" \ 14c6557e7fSMartin Schwidefsky "1:\n" \ 15c6557e7fSMartin Schwidefsky ".section .rodata.str,\"aMS\",@progbits,1\n" \ 16c6557e7fSMartin Schwidefsky "2: .asciz \""__FILE__"\"\n" \ 17c6557e7fSMartin Schwidefsky ".previous\n" \ 18e21f8bafSMartin Schwidefsky ".section __bug_table,\"awM\",@progbits,%2\n" \ 1952499f40SHeiko Carstens "3: .long 1b-3b,2b-3b\n" \ 20c6557e7fSMartin Schwidefsky " .short %0,%1\n" \ 21c6557e7fSMartin Schwidefsky " .org 3b+%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( \ 32c6557e7fSMartin Schwidefsky "0: j 0b+2\n" \ 33c6557e7fSMartin Schwidefsky "1:\n" \ 34e21f8bafSMartin Schwidefsky ".section __bug_table,\"awM\",@progbits,%1\n" \ 3552499f40SHeiko Carstens "2: .long 1b-2b\n" \ 36c6557e7fSMartin Schwidefsky " .short %0\n" \ 37c6557e7fSMartin Schwidefsky " .org 2b+%1\n" \ 38c6557e7fSMartin Schwidefsky ".previous\n" \ 39c6557e7fSMartin Schwidefsky : : "i" (x), \ 40c6557e7fSMartin Schwidefsky "i" (sizeof(struct bug_entry))); \ 41c6557e7fSMartin Schwidefsky } while (0) 42c6557e7fSMartin Schwidefsky 43c6557e7fSMartin Schwidefsky #endif /* CONFIG_DEBUG_BUGVERBOSE */ 44c6557e7fSMartin Schwidefsky 452d6cd2a5SMartin Schwidefsky #define BUG() do { \ 462d6cd2a5SMartin Schwidefsky __EMIT_BUG(0); \ 475506e689SDavid Daney unreachable(); \ 482d6cd2a5SMartin Schwidefsky } while (0) 49c6557e7fSMartin Schwidefsky 5019d43626SPeter Zijlstra #define __WARN_FLAGS(flags) do { \ 5119d43626SPeter Zijlstra __EMIT_BUG(BUGFLAG_WARNING|(flags)); \ 52a9df8e32SHeiko Carstens } while (0) 53a9df8e32SHeiko Carstens 54c6557e7fSMartin Schwidefsky #define WARN_ON(x) ({ \ 55c6557e7fSMartin Schwidefsky int __ret_warn_on = !!(x); \ 56c6557e7fSMartin Schwidefsky if (__builtin_constant_p(__ret_warn_on)) { \ 57c6557e7fSMartin Schwidefsky if (__ret_warn_on) \ 58b2be0527SBen Hutchings __WARN(); \ 59c6557e7fSMartin Schwidefsky } else { \ 60c6557e7fSMartin Schwidefsky if (unlikely(__ret_warn_on)) \ 61b2be0527SBen Hutchings __WARN(); \ 62c6557e7fSMartin Schwidefsky } \ 63c6557e7fSMartin Schwidefsky unlikely(__ret_warn_on); \ 64c6557e7fSMartin Schwidefsky }) 65c6557e7fSMartin Schwidefsky 66c6557e7fSMartin Schwidefsky #define HAVE_ARCH_BUG 67c6557e7fSMartin Schwidefsky #define HAVE_ARCH_WARN_ON 68c6557e7fSMartin Schwidefsky #endif /* CONFIG_BUG */ 69c6557e7fSMartin Schwidefsky 70c6557e7fSMartin Schwidefsky #include <asm-generic/bug.h> 71c6557e7fSMartin Schwidefsky 72c6557e7fSMartin Schwidefsky #endif /* _ASM_S390_BUG_H */ 73