1 /* SPDX-License-Identifier: GPL-2.0 */ 1
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\",
15 "1: .asciz \""__FILE__"\"
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_ent
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_ent
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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