Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _PARISC_BUG_H |
2 | #define _PARISC_BUG_H | |
3 | ||
6891f8a1 HD |
4 | /* |
5 | * Tell the user there is some problem. | |
6 | * The offending file and line are encoded in the __bug_table section. | |
7 | */ | |
8 | ||
c8538a7a | 9 | #ifdef CONFIG_BUG |
1da177e4 | 10 | #define HAVE_ARCH_BUG |
6891f8a1 HD |
11 | #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 | ||
0b3d643f HD |
17 | #if defined(CONFIG_64BIT) |
18 | #define ASM_WORD_INSN ".dword\t" | |
6891f8a1 | 19 | #else |
0b3d643f | 20 | #define ASM_WORD_INSN ".word\t" |
6891f8a1 HD |
21 | #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" \ | |
0b3d643f | 29 | "2:\t" ASM_WORD_INSN "1b, %c0\n" \ |
6891f8a1 HD |
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 | 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 | ||
e3828764 | 46 | #ifdef CONFIG_DEBUG_BUGVERBOSE |
6891f8a1 HD |
47 | #define __WARN() \ |
48 | do { \ | |
49 | asm volatile("\n" \ | |
50 | "1:\t" PARISC_BUG_BREAK_ASM "\n" \ | |
51 | "\t.pushsection __bug_table,\"a\"\n" \ | |
0b3d643f | 52 | "2:\t" ASM_WORD_INSN "1b, %c0\n" \ |
6891f8a1 HD |
53 | "\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) | |
e3828764 HD |
60 | #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" \ | |
0b3d643f | 66 | "2:\t" ASM_WORD_INSN "1b\n" \ |
e3828764 HD |
67 | "\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 | |
6891f8a1 HD |
74 | |
75 | ||
76 | #define WARN_ON(x) ({ \ | |
fd0cbdd3 | 77 | int __ret_warn_on = !!(x); \ |
6891f8a1 HD |
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 | ||
c8538a7a | 88 | #endif |
1da177e4 LT |
89 | |
90 | #include <asm-generic/bug.h> | |
91 | #endif | |
6891f8a1 | 92 |