projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| 29 | #define BUG() do { \ | |
| 30 | __asm__ __volatile__( \ | |
| 31 | "1: twi 31,0,0\n" \ | |
| 32 | ".section __bug_table,\"a\"\n\t" \ | |
| 33 | " .llong 1b,%0,%1,%2\n" \ | |
| 34 | ".previous" \ | |
| 35 | : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \ | |
| 36 | } while (0) | |
| 37 | ||
| 38 | #define BUG_ON(x) do { \ | |
| 39 | __asm__ __volatile__( \ | |
| 40 | "1: tdnei %0,0\n" \ | |
| 41 | ".section __bug_table,\"a\"\n\t" \ | |
| 42 | " .llong 1b,%1,%2,%3\n" \ | |
| 43 | ".previous" \ | |
| 44 | : : "r" (x), "i" (__LINE__), "i" (__FILE__), \ | |
| 45 | "i" (__FUNCTION__)); \ | |
| 46 | } while (0) | |
| 47 | ||
| 48 | #define WARN_ON(x) do { \ | |
| 49 | __asm__ __volatile__( \ | |
| 50 | "1: tdnei %0,0\n" \ | |
| 51 | ".section __bug_table,\"a\"\n\t" \ | |
| 52 | " .llong 1b,%1,%2,%3\n" \ | |
| 53 | ".previous" \ | |
| 54 | : : "r" (x), "i" (__LINE__ + BUG_WARNING_TRAP), \ | |
| 55 | "i" (__FILE__), "i" (__FUNCTION__)); \ | |
| 56 | } while (0) | |
| 57 | ||
| 58 | #endif | |
| 59 | ||
| 60 | #define HAVE_ARCH_BUG | |
| 61 | #define HAVE_ARCH_BUG_ON | |
| 62 | #define HAVE_ARCH_WARN_ON | |
| 63 | #include <asm-generic/bug.h> | |
| 64 | ||
| 65 | #endif |