projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |