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76d2a049 PD |
1 | /* |
2 | * Copyright (C) 2012 Regents of the University of California | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation, version 2. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
13 | ||
14 | #ifndef _ASM_RISCV_BUG_H | |
15 | #define _ASM_RISCV_BUG_H | |
16 | ||
17 | #include <linux/compiler.h> | |
18 | #include <linux/const.h> | |
19 | #include <linux/types.h> | |
20 | ||
21 | #include <asm/asm.h> | |
22 | ||
23 | #ifdef CONFIG_GENERIC_BUG | |
24 | #define __BUG_INSN _AC(0x00100073, UL) /* ebreak */ | |
25 | ||
26 | #ifndef __ASSEMBLY__ | |
27 | typedef u32 bug_insn_t; | |
28 | ||
29 | #ifdef CONFIG_GENERIC_BUG_RELATIVE_POINTERS | |
5e6f82b0 OJ |
30 | #define __BUG_ENTRY_ADDR RISCV_INT " 1b - 2b" |
31 | #define __BUG_ENTRY_FILE RISCV_INT " %0 - 2b" | |
76d2a049 PD |
32 | #else |
33 | #define __BUG_ENTRY_ADDR RISCV_PTR " 1b" | |
34 | #define __BUG_ENTRY_FILE RISCV_PTR " %0" | |
35 | #endif | |
36 | ||
37 | #ifdef CONFIG_DEBUG_BUGVERBOSE | |
38 | #define __BUG_ENTRY \ | |
39 | __BUG_ENTRY_ADDR "\n\t" \ | |
40 | __BUG_ENTRY_FILE "\n\t" \ | |
5e6f82b0 | 41 | RISCV_SHORT " %1" |
76d2a049 PD |
42 | #else |
43 | #define __BUG_ENTRY \ | |
44 | __BUG_ENTRY_ADDR | |
45 | #endif | |
46 | ||
47 | #define BUG() \ | |
48 | do { \ | |
49 | __asm__ __volatile__ ( \ | |
50 | "1:\n\t" \ | |
51 | "ebreak\n" \ | |
52 | ".pushsection __bug_table,\"a\"\n\t" \ | |
53 | "2:\n\t" \ | |
54 | __BUG_ENTRY "\n\t" \ | |
55 | ".org 2b + %2\n\t" \ | |
56 | ".popsection" \ | |
57 | : \ | |
58 | : "i" (__FILE__), "i" (__LINE__), \ | |
59 | "i" (sizeof(struct bug_entry))); \ | |
60 | unreachable(); \ | |
61 | } while (0) | |
62 | #endif /* !__ASSEMBLY__ */ | |
63 | #else /* CONFIG_GENERIC_BUG */ | |
64 | #ifndef __ASSEMBLY__ | |
65 | #define BUG() \ | |
66 | do { \ | |
67 | __asm__ __volatile__ ("ebreak\n"); \ | |
68 | unreachable(); \ | |
69 | } while (0) | |
70 | #endif /* !__ASSEMBLY__ */ | |
71 | #endif /* CONFIG_GENERIC_BUG */ | |
72 | ||
73 | #define HAVE_ARCH_BUG | |
74 | ||
75 | #include <asm-generic/bug.h> | |
76 | ||
77 | #ifndef __ASSEMBLY__ | |
78 | ||
79 | struct pt_regs; | |
80 | struct task_struct; | |
81 | ||
82 | extern void die(struct pt_regs *regs, const char *str); | |
83 | extern void do_trap(struct pt_regs *regs, int signo, int code, | |
84 | unsigned long addr, struct task_struct *tsk); | |
85 | ||
86 | #endif /* !__ASSEMBLY__ */ | |
87 | ||
88 | #endif /* _ASM_RISCV_BUG_H */ |