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