projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 */ |