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c0007f1a HC |
1 | #ifndef _ASM_S390_BUG_H |
2 | #define _ASM_S390_BUG_H | |
1da177e4 LT |
3 | |
4 | #include <linux/kernel.h> | |
5 | ||
c8538a7a | 6 | #ifdef CONFIG_BUG |
4896cef8 | 7 | |
c0007f1a HC |
8 | #ifdef CONFIG_64BIT |
9 | #define S390_LONG ".quad" | |
f4a10b21 | 10 | #else |
c0007f1a | 11 | #define S390_LONG ".long" |
f4a10b21 | 12 | #endif |
f4a10b21 | 13 | |
c0007f1a HC |
14 | #ifdef CONFIG_DEBUG_BUGVERBOSE |
15 | ||
16 | #define __EMIT_BUG(x) do { \ | |
17 | asm volatile( \ | |
18 | "0: j 0b+2\n" \ | |
19 | "1:\n" \ | |
20 | ".section .rodata.str,\"aMS\",@progbits,1\n" \ | |
21 | "2: .asciz \""__FILE__"\"\n" \ | |
22 | ".previous\n" \ | |
23 | ".section __bug_table,\"a\"\n" \ | |
24 | "3:\t" S390_LONG "\t1b,2b\n" \ | |
25 | " .short %0,%1\n" \ | |
26 | " .org 3b+%2\n" \ | |
27 | ".previous\n" \ | |
28 | : : "i" (__LINE__), \ | |
29 | "i" (x), \ | |
30 | "i" (sizeof(struct bug_entry))); \ | |
1da177e4 LT |
31 | } while (0) |
32 | ||
c0007f1a HC |
33 | #else /* CONFIG_DEBUG_BUGVERBOSE */ |
34 | ||
35 | #define __EMIT_BUG(x) do { \ | |
36 | asm volatile( \ | |
37 | "0: j 0b+2\n" \ | |
38 | "1:\n" \ | |
39 | ".section __bug_table,\"a\"\n" \ | |
40 | "2:\t" S390_LONG "\t1b\n" \ | |
41 | " .short %0\n" \ | |
42 | " .org 2b+%1\n" \ | |
43 | ".previous\n" \ | |
44 | : : "i" (x), \ | |
45 | "i" (sizeof(struct bug_entry))); \ | |
46 | } while (0) | |
47 | ||
48 | #endif /* CONFIG_DEBUG_BUGVERBOSE */ | |
49 | ||
50 | #define BUG() __EMIT_BUG(0) | |
51 | ||
52 | #define WARN_ON(x) ({ \ | |
53 | typeof(x) __ret_warn_on = (x); \ | |
54 | if (__builtin_constant_p(__ret_warn_on)) { \ | |
55 | if (__ret_warn_on) \ | |
56 | __EMIT_BUG(BUGFLAG_WARNING); \ | |
57 | } else { \ | |
58 | if (unlikely(__ret_warn_on)) \ | |
59 | __EMIT_BUG(BUGFLAG_WARNING); \ | |
60 | } \ | |
61 | unlikely(__ret_warn_on); \ | |
62 | }) | |
63 | ||
1da177e4 | 64 | #define HAVE_ARCH_BUG |
c0007f1a HC |
65 | #define HAVE_ARCH_WARN_ON |
66 | #endif /* CONFIG_BUG */ | |
c8538a7a | 67 | |
1da177e4 LT |
68 | #include <asm-generic/bug.h> |
69 | ||
c0007f1a | 70 | #endif /* _ASM_S390_BUG_H */ |