Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _PPC64_BUG_H |
| 2 | #define _PPC64_BUG_H |
| 3 | |
| 4 | /* |
| 5 | * Define an illegal instr to trap on the bug. |
| 6 | * We don't use 0 because that marks the end of a function |
| 7 | * in the ELF ABI. That's "Boo Boo" in case you wonder... |
| 8 | */ |
| 9 | #define BUG_OPCODE .long 0x00b00b00 /* For asm */ |
| 10 | #define BUG_ILLEGAL_INSTR "0x00b00b00" /* For BUG macro */ |
| 11 | |
| 12 | #ifndef __ASSEMBLY__ |
| 13 | |
| 14 | struct bug_entry { |
| 15 | unsigned long bug_addr; |
| 16 | long line; |
| 17 | const char *file; |
| 18 | const char *function; |
| 19 | }; |
| 20 | |
| 21 | struct bug_entry *find_bug(unsigned long bugaddr); |
| 22 | |
| 23 | /* |
| 24 | * If this bit is set in the line number it means that the trap |
| 25 | * is for WARN_ON rather than BUG or BUG_ON. |
| 26 | */ |
| 27 | #define BUG_WARNING_TRAP 0x1000000 |
| 28 | |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 29 | #ifdef CONFIG_BUG |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #define BUG() do { \ |
| 32 | __asm__ __volatile__( \ |
| 33 | "1: twi 31,0,0\n" \ |
| 34 | ".section __bug_table,\"a\"\n\t" \ |
| 35 | " .llong 1b,%0,%1,%2\n" \ |
| 36 | ".previous" \ |
| 37 | : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \ |
| 38 | } while (0) |
| 39 | |
| 40 | #define BUG_ON(x) do { \ |
| 41 | __asm__ __volatile__( \ |
| 42 | "1: tdnei %0,0\n" \ |
| 43 | ".section __bug_table,\"a\"\n\t" \ |
| 44 | " .llong 1b,%1,%2,%3\n" \ |
| 45 | ".previous" \ |
Anton Blanchard | 32818c2 | 2005-08-26 18:34:07 -0700 | [diff] [blame] | 46 | : : "r" ((long long)(x)), "i" (__LINE__), \ |
| 47 | "i" (__FILE__), "i" (__FUNCTION__)); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | } while (0) |
| 49 | |
| 50 | #define WARN_ON(x) do { \ |
| 51 | __asm__ __volatile__( \ |
| 52 | "1: tdnei %0,0\n" \ |
| 53 | ".section __bug_table,\"a\"\n\t" \ |
| 54 | " .llong 1b,%1,%2,%3\n" \ |
| 55 | ".previous" \ |
Anton Blanchard | 32818c2 | 2005-08-26 18:34:07 -0700 | [diff] [blame] | 56 | : : "r" ((long long)(x)), \ |
| 57 | "i" (__LINE__ + BUG_WARNING_TRAP), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | "i" (__FILE__), "i" (__FUNCTION__)); \ |
| 59 | } while (0) |
| 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | #define HAVE_ARCH_BUG |
| 62 | #define HAVE_ARCH_BUG_ON |
| 63 | #define HAVE_ARCH_WARN_ON |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 64 | #endif |
| 65 | #endif |
| 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | #include <asm-generic/bug.h> |
| 68 | |
| 69 | #endif |