projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| c0007f1a HC |
2 | #ifndef _ASM_S390_BUG_H |
| 3 | #define _ASM_S390_BUG_H | |
| 1da177e4 LT |
4 | |
| 5 | #include <linux/kernel.h> | |
| 6 | ||
| c8538a7a | 7 | #ifdef CONFIG_BUG |
| 4896cef8 | 8 | |
| c0007f1a HC |
9 | #ifdef CONFIG_DEBUG_BUGVERBOSE |
| 10 | ||
| 11 | #define __EMIT_BUG(x) do { \ | |
| 12 | asm volatile( \ | |
| 13 | "0: j 0b+2\n" \ | |
| 14 | "1:\n" \ | |
| 15 | ".section .rodata.str,\"aMS\",@progbits,1\n" \ | |
| 16 | "2: .asciz \""__FILE__"\"\n" \ | |
| 17 | ".previous\n" \ | |
| 325cdacd | 18 | ".section __bug_table,\"aw\"\n" \ |
| 52499f40 | 19 | "3: .long 1b-3b,2b-3b\n" \ |
| c0007f1a HC |
20 | " .short %0,%1\n" \ |
| 21 | " .org 3b+%2\n" \ | |
| 22 | ".previous\n" \ | |
| 23 | : : "i" (__LINE__), \ | |
| 24 | "i" (x), \ | |
| 25 | "i" (sizeof(struct bug_entry))); \ | |
| 1da177e4 LT |
26 | } while (0) |
| 27 | ||
| c0007f1a HC |
28 | #else /* CONFIG_DEBUG_BUGVERBOSE */ |
| 29 | ||
| 30 | #define __EMIT_BUG(x) do { \ | |
| 31 | asm volatile( \ | |
| 32 | "0: j 0b+2\n" \ | |
| 33 | "1:\n" \ | |
| 325cdacd | 34 | ".section __bug_table,\"aw\"\n" \ |
| 52499f40 | 35 | "2: .long 1b-2b\n" \ |
| c0007f1a HC |
36 | " .short %0\n" \ |
| 37 | " .org 2b+%1\n" \ | |
| 38 | ".previous\n" \ | |
| 39 | : : "i" (x), \ | |
| 40 | "i" (sizeof(struct bug_entry))); \ | |
| 41 | } while (0) | |
| 42 | ||
| 43 | #endif /* CONFIG_DEBUG_BUGVERBOSE */ | |
| 44 | ||
| 2d6cd2a5 MS |
45 | #define BUG() do { \ |
| 46 | __EMIT_BUG(0); \ | |
| 5506e689 | 47 | unreachable(); \ |
| 2d6cd2a5 | 48 | } while (0) |
| c0007f1a | 49 | |
| 19d43626 PZ |
50 | #define __WARN_FLAGS(flags) do { \ |
| 51 | __EMIT_BUG(BUGFLAG_WARNING|(flags)); \ | |
| a9df8e32 HC |
52 | } while (0) |
| 53 | ||
| c0007f1a | 54 | #define WARN_ON(x) ({ \ |
| fd0cbdd3 | 55 | int __ret_warn_on = !!(x); \ |
| c0007f1a HC |
56 | if (__builtin_constant_p(__ret_warn_on)) { \ |
| 57 | if (__ret_warn_on) \ | |
| b2be0527 | 58 | __WARN(); \ |
| c0007f1a HC |
59 | } else { \ |
| 60 | if (unlikely(__ret_warn_on)) \ | |
| b2be0527 | 61 | __WARN(); \ |
| c0007f1a HC |
62 | } \ |
| 63 | unlikely(__ret_warn_on); \ | |
| 64 | }) | |
| 65 | ||
| 1da177e4 | 66 | #define HAVE_ARCH_BUG |
| c0007f1a HC |
67 | #define HAVE_ARCH_WARN_ON |
| 68 | #endif /* CONFIG_BUG */ | |
| c8538a7a | 69 | |
| 1da177e4 LT |
70 | #include <asm-generic/bug.h> |
| 71 | ||
| c0007f1a | 72 | #endif /* _ASM_S390_BUG_H */ |