Add linux-next specific files for 20110831
[linux-2.6/next.git] / arch / parisc / include / asm / bug.h
blob72cfdb0cfdd157485e2acd4a27de5c7788b483c1
1 #ifndef _PARISC_BUG_H
2 #define _PARISC_BUG_H
4 /*
5 * Tell the user there is some problem.
6 * The offending file and line are encoded in the __bug_table section.
7 */
9 #ifdef CONFIG_BUG
10 #define HAVE_ARCH_BUG
11 #define HAVE_ARCH_WARN_ON
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 */
17 #if defined(CONFIG_64BIT)
18 #define ASM_WORD_INSN ".dword\t"
19 #else
20 #define ASM_WORD_INSN ".word\t"
21 #endif
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" \
29 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
30 "\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 unreachable(); \
36 } while(0)
38 #else
39 #define BUG() \
40 do { \
41 asm volatile(PARISC_BUG_BREAK_ASM : : ); \
42 unreachable(); \
43 } while(0)
44 #endif
46 #ifdef CONFIG_DEBUG_BUGVERBOSE
47 #define __WARN_TAINT(taint) \
48 do { \
49 asm volatile("\n" \
50 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
51 "\t.pushsection __bug_table,\"a\"\n" \
52 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
53 "\t.short %c1, %c2\n" \
54 "\t.org 2b+%c3\n" \
55 "\t.popsection" \
56 : : "i" (__FILE__), "i" (__LINE__), \
57 "i" (BUGFLAG_TAINT(taint)), \
58 "i" (sizeof(struct bug_entry)) ); \
59 } while(0)
60 #else
61 #define __WARN_TAINT(taint) \
62 do { \
63 asm volatile("\n" \
64 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
65 "\t.pushsection __bug_table,\"a\"\n" \
66 "2:\t" ASM_WORD_INSN "1b\n" \
67 "\t.short %c0\n" \
68 "\t.org 2b+%c1\n" \
69 "\t.popsection" \
70 : : "i" (BUGFLAG_TAINT(taint)), \
71 "i" (sizeof(struct bug_entry)) ); \
72 } while(0)
73 #endif
76 #define WARN_ON(x) ({ \
77 int __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); \
88 #endif
90 #include <asm-generic/bug.h>
91 #endif