bug.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_S390_BUG_H
 3#define _ASM_S390_BUG_H
 4
 5#include <linux/stringify.h>
 6
 7#ifdef CONFIG_BUG
 8
 9#ifndef CONFIG_DEBUG_BUGVERBOSE
10#define _BUGVERBOSE_LOCATION(file, line)
11#else
12#define __BUGVERBOSE_LOCATION(file, line)			\
13		.pushsection .rodata.str, "aMS", @progbits, 1;	\
14		.align 2;					\
15	10002:	.ascii file "\0";				\
16		.popsection;					\
17								\
18		.long 10002b - .;				\
19		.short line;
20#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
21#endif
22
23#ifndef CONFIG_GENERIC_BUG
24#define __BUG_ENTRY(cond_str, flags)
25#else
26#define __BUG_ENTRY(cond_str, flags)				\
27		.pushsection __bug_table, "aw";			\
28		.align 4;					\
29	10000:	.long 10001f - .;				\
30		_BUGVERBOSE_LOCATION(WARN_CONDITION_STR(cond_str) __FILE__, __LINE__) \
31		.short flags;					\
32		.popsection;					\
33	10001:
34#endif
35
36#define ASM_BUG_FLAGS(cond_str, flags)				\
37	__BUG_ENTRY(cond_str, flags)				\
38	mc		0,0
39
40#define ASM_BUG()	ASM_BUG_FLAGS("", 0)
41
42#define __BUG_FLAGS(cond_str, flags)				\
43	asm_inline volatile(__stringify(ASM_BUG_FLAGS(cond_str, flags)));
44
45#define __WARN_FLAGS(cond_str, flags)				\
46do {								\
47	__BUG_FLAGS(cond_str, BUGFLAG_WARNING|(flags));		\
48} while (0)
49
50#define BUG()							\
51do {								\
52	__BUG_FLAGS("", 0);					\
53	unreachable();						\
54} while (0)
55
56#define HAVE_ARCH_BUG
57
58#endif /* CONFIG_BUG */
59
60#include <asm-generic/bug.h>
61
62#endif /* _ASM_S390_BUG_H */