blob: 83ba510ed5d874ea77c70ec9d8ed7352fd31b6dc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _PARISC_BUG_H
2#define _PARISC_BUG_H
3
Helge Deller6891f8a2006-12-16 16:16:50 +01004/*
5 * Tell the user there is some problem.
6 * The offending file and line are encoded in the __bug_table section.
7 */
8
Matt Mackallc8538a72005-05-01 08:59:01 -07009#ifdef CONFIG_BUG
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#define HAVE_ARCH_BUG
Helge Deller6891f8a2006-12-16 16:16:50 +010011#define HAVE_ARCH_WARN_ON
12
13/* the break instruction is used as BUG() marker. */
14#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
15#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */
16
Helge Deller0b3d6432007-01-28 14:52:57 +010017#if defined(CONFIG_64BIT)
18#define ASM_WORD_INSN ".dword\t"
Helge Deller6891f8a2006-12-16 16:16:50 +010019#else
Helge Deller0b3d6432007-01-28 14:52:57 +010020#define ASM_WORD_INSN ".word\t"
Helge Deller6891f8a2006-12-16 16:16:50 +010021#endif
22
23#ifdef CONFIG_DEBUG_BUGVERBOSE
24#define BUG() \
25 do { \
26 asm volatile("\n" \
27 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
28 "\t.pushsection __bug_table,\"a\"\n" \
Helge Deller0b3d6432007-01-28 14:52:57 +010029 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
Helge Deller6891f8a2006-12-16 16:16:50 +010030 "\t.short %c1, %c2\n" \
31 "\t.org 2b+%c3\n" \
32 "\t.popsection" \
33 : : "i" (__FILE__), "i" (__LINE__), \
34 "i" (0), "i" (sizeof(struct bug_entry)) ); \
35 for(;;) ; \
36 } while(0)
37
38#else
39#define BUG() \
40 do { \
41 asm volatile(PARISC_BUG_BREAK_ASM : : ); \
42 for(;;) ; \
43 } while(0)
44#endif
45
Helge Dellere3828762006-12-16 17:48:26 +010046#ifdef CONFIG_DEBUG_BUGVERBOSE
Helge Deller6891f8a2006-12-16 16:16:50 +010047#define __WARN() \
48 do { \
49 asm volatile("\n" \
50 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
51 "\t.pushsection __bug_table,\"a\"\n" \
Helge Deller0b3d6432007-01-28 14:52:57 +010052 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
Helge Deller6891f8a2006-12-16 16:16:50 +010053 "\t.short %c1, %c2\n" \
54 "\t.org 2b+%c3\n" \
55 "\t.popsection" \
56 : : "i" (__FILE__), "i" (__LINE__), \
57 "i" (BUGFLAG_WARNING), \
58 "i" (sizeof(struct bug_entry)) ); \
59 } while(0)
Helge Dellere3828762006-12-16 17:48:26 +010060#else
61#define __WARN() \
62 do { \
63 asm volatile("\n" \
64 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
65 "\t.pushsection __bug_table,\"a\"\n" \
Helge Deller0b3d6432007-01-28 14:52:57 +010066 "2:\t" ASM_WORD_INSN "1b\n" \
Helge Dellere3828762006-12-16 17:48:26 +010067 "\t.short %c0\n" \
68 "\t.org 2b+%c1\n" \
69 "\t.popsection" \
70 : : "i" (BUGFLAG_WARNING), \
71 "i" (sizeof(struct bug_entry)) ); \
72 } while(0)
73#endif
Helge Deller6891f8a2006-12-16 16:16:50 +010074
75
76#define WARN_ON(x) ({ \
77 typeof(x) __ret_warn_on = (x); \
78 if (__builtin_constant_p(__ret_warn_on)) { \
79 if (__ret_warn_on) \
80 __WARN(); \
81 } else { \
82 if (unlikely(__ret_warn_on)) \
83 __WARN(); \
84 } \
85 unlikely(__ret_warn_on); \
86})
87
Matt Mackallc8538a72005-05-01 08:59:01 -070088#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
90#include <asm-generic/bug.h>
91#endif
Helge Deller6891f8a2006-12-16 16:16:50 +010092