diff options
Diffstat (limited to 'include/asm-powerpc/bug.h')
-rw-r--r-- | include/asm-powerpc/bug.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/include/asm-powerpc/bug.h b/include/asm-powerpc/bug.h deleted file mode 100644 index e55d1f66b86f..000000000000 --- a/include/asm-powerpc/bug.h +++ /dev/null | |||
@@ -1,121 +0,0 @@ | |||
1 | #ifndef _ASM_POWERPC_BUG_H | ||
2 | #define _ASM_POWERPC_BUG_H | ||
3 | #ifdef __KERNEL__ | ||
4 | |||
5 | #include <asm/asm-compat.h> | ||
6 | /* | ||
7 | * Define an illegal instr to trap on the bug. | ||
8 | * We don't use 0 because that marks the end of a function | ||
9 | * in the ELF ABI. That's "Boo Boo" in case you wonder... | ||
10 | */ | ||
11 | #define BUG_OPCODE .long 0x00b00b00 /* For asm */ | ||
12 | #define BUG_ILLEGAL_INSTR "0x00b00b00" /* For BUG macro */ | ||
13 | |||
14 | #ifdef CONFIG_BUG | ||
15 | |||
16 | #ifdef __ASSEMBLY__ | ||
17 | #ifdef CONFIG_DEBUG_BUGVERBOSE | ||
18 | .macro EMIT_BUG_ENTRY addr,file,line,flags | ||
19 | .section __bug_table,"a" | ||
20 | 5001: PPC_LONG \addr, 5002f | ||
21 | .short \line, \flags | ||
22 | .org 5001b+BUG_ENTRY_SIZE | ||
23 | .previous | ||
24 | .section .rodata,"a" | ||
25 | 5002: .asciz "\file" | ||
26 | .previous | ||
27 | .endm | ||
28 | #else | ||
29 | .macro EMIT_BUG_ENTRY addr,file,line,flags | ||
30 | .section __bug_table,"a" | ||
31 | 5001: PPC_LONG \addr | ||
32 | .short \flags | ||
33 | .org 5001b+BUG_ENTRY_SIZE | ||
34 | .previous | ||
35 | .endm | ||
36 | #endif /* verbose */ | ||
37 | |||
38 | #else /* !__ASSEMBLY__ */ | ||
39 | /* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and | ||
40 | sizeof(struct bug_entry), respectively */ | ||
41 | #ifdef CONFIG_DEBUG_BUGVERBOSE | ||
42 | #define _EMIT_BUG_ENTRY \ | ||
43 | ".section __bug_table,\"a\"\n" \ | ||
44 | "2:\t" PPC_LONG "1b, %0\n" \ | ||
45 | "\t.short %1, %2\n" \ | ||
46 | ".org 2b+%3\n" \ | ||
47 | ".previous\n" | ||
48 | #else | ||
49 | #define _EMIT_BUG_ENTRY \ | ||
50 | ".section __bug_table,\"a\"\n" \ | ||
51 | "2:\t" PPC_LONG "1b\n" \ | ||
52 | "\t.short %2\n" \ | ||
53 | ".org 2b+%3\n" \ | ||
54 | ".previous\n" | ||
55 | #endif | ||
56 | |||
57 | /* | ||
58 | * BUG_ON() and WARN_ON() do their best to cooperate with compile-time | ||
59 | * optimisations. However depending on the complexity of the condition | ||
60 | * some compiler versions may not produce optimal results. | ||
61 | */ | ||
62 | |||
63 | #define BUG() do { \ | ||
64 | __asm__ __volatile__( \ | ||
65 | "1: twi 31,0,0\n" \ | ||
66 | _EMIT_BUG_ENTRY \ | ||
67 | : : "i" (__FILE__), "i" (__LINE__), \ | ||
68 | "i" (0), "i" (sizeof(struct bug_entry))); \ | ||
69 | for(;;) ; \ | ||
70 | } while (0) | ||
71 | |||
72 | #define BUG_ON(x) do { \ | ||
73 | if (__builtin_constant_p(x)) { \ | ||
74 | if (x) \ | ||
75 | BUG(); \ | ||
76 | } else { \ | ||
77 | __asm__ __volatile__( \ | ||
78 | "1: "PPC_TLNEI" %4,0\n" \ | ||
79 | _EMIT_BUG_ENTRY \ | ||
80 | : : "i" (__FILE__), "i" (__LINE__), "i" (0), \ | ||
81 | "i" (sizeof(struct bug_entry)), \ | ||
82 | "r" ((__force long)(x))); \ | ||
83 | } \ | ||
84 | } while (0) | ||
85 | |||
86 | #define __WARN() do { \ | ||
87 | __asm__ __volatile__( \ | ||
88 | "1: twi 31,0,0\n" \ | ||
89 | _EMIT_BUG_ENTRY \ | ||
90 | : : "i" (__FILE__), "i" (__LINE__), \ | ||
91 | "i" (BUGFLAG_WARNING), \ | ||
92 | "i" (sizeof(struct bug_entry))); \ | ||
93 | } while (0) | ||
94 | |||
95 | #define WARN_ON(x) ({ \ | ||
96 | int __ret_warn_on = !!(x); \ | ||
97 | if (__builtin_constant_p(__ret_warn_on)) { \ | ||
98 | if (__ret_warn_on) \ | ||
99 | __WARN(); \ | ||
100 | } else { \ | ||
101 | __asm__ __volatile__( \ | ||
102 | "1: "PPC_TLNEI" %4,0\n" \ | ||
103 | _EMIT_BUG_ENTRY \ | ||
104 | : : "i" (__FILE__), "i" (__LINE__), \ | ||
105 | "i" (BUGFLAG_WARNING), \ | ||
106 | "i" (sizeof(struct bug_entry)), \ | ||
107 | "r" (__ret_warn_on)); \ | ||
108 | } \ | ||
109 | unlikely(__ret_warn_on); \ | ||
110 | }) | ||
111 | |||
112 | #define HAVE_ARCH_BUG | ||
113 | #define HAVE_ARCH_BUG_ON | ||
114 | #define HAVE_ARCH_WARN_ON | ||
115 | #endif /* __ASSEMBLY __ */ | ||
116 | #endif /* CONFIG_BUG */ | ||
117 | |||
118 | #include <asm-generic/bug.h> | ||
119 | |||
120 | #endif /* __KERNEL__ */ | ||
121 | #endif /* _ASM_POWERPC_BUG_H */ | ||