1#ifndef _PARISC_BUG_H
2#define _PARISC_BUG_H
3
4#include <linux/kernel.h>
5
6
7
8
9
10
11#ifdef CONFIG_BUG
12#define HAVE_ARCH_BUG
13#define HAVE_ARCH_WARN_ON
14
15
16#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
17#define PARISC_BUG_BREAK_INSN 0x03ffe01f
18
19#if defined(CONFIG_64BIT)
20#define ASM_WORD_INSN ".dword\t"
21#else
22#define ASM_WORD_INSN ".word\t"
23#endif
24
25#ifdef CONFIG_DEBUG_BUGVERBOSE
26#define BUG() \
27 do { \
28 asm volatile("\n" \
29 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
30 "\t.pushsection __bug_table,\"a\"\n" \
31 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
32 "\t.short %c1, %c2\n" \
33 "\t.org 2b+%c3\n" \
34 "\t.popsection" \
35 : : "i" (__FILE__), "i" (__LINE__), \
36 "i" (0), "i" (sizeof(struct bug_entry)) ); \
37 unreachable(); \
38 } while(0)
39
40#else
41#define BUG() \
42 do { \
43 asm volatile(PARISC_BUG_BREAK_ASM : : ); \
44 unreachable(); \
45 } while(0)
46#endif
47
48#ifdef CONFIG_DEBUG_BUGVERBOSE
49#define __WARN_TAINT(taint) \
50 do { \
51 asm volatile("\n" \
52 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
53 "\t.pushsection __bug_table,\"a\"\n" \
54 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
55 "\t.short %c1, %c2\n" \
56 "\t.org 2b+%c3\n" \
57 "\t.popsection" \
58 : : "i" (__FILE__), "i" (__LINE__), \
59 "i" (BUGFLAG_TAINT(taint)), \
60 "i" (sizeof(struct bug_entry)) ); \
61 } while(0)
62#else
63#define __WARN_TAINT(taint) \
64 do { \
65 asm volatile("\n" \
66 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
67 "\t.pushsection __bug_table,\"a\"\n" \
68 "2:\t" ASM_WORD_INSN "1b\n" \
69 "\t.short %c0\n" \
70 "\t.org 2b+%c1\n" \
71 "\t.popsection" \
72 : : "i" (BUGFLAG_TAINT(taint)), \
73 "i" (sizeof(struct bug_entry)) ); \
74 } while(0)
75#endif
76
77
78#define WARN_ON(x) ({ \
79 int __ret_warn_on = !!(x); \
80 if (__builtin_constant_p(__ret_warn_on)) { \
81 if (__ret_warn_on) \
82 __WARN(); \
83 } else { \
84 if (unlikely(__ret_warn_on)) \
85 __WARN(); \
86 } \
87 unlikely(__ret_warn_on); \
88})
89
90#endif
91
92#include <asm-generic/bug.h>
93#endif
94
95