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/*
* Copyright (C) 2012 Regents of the University of California
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _ASM_RISCV_BUG_H
#define _ASM_RISCV_BUG_H
#include <linux/compiler.h>
#include <linux/const.h>
#include <linux/types.h>
#include <asm/asm.h>
#ifdef CONFIG_GENERIC_BUG
#define __BUG_INSN _AC(0x00100073, UL) /* ebreak */
#ifndef __ASSEMBLY__
typedef u32 bug_insn_t;
#ifdef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
#define __BUG_ENTRY_ADDR RISCV_INT " 1b - 2b"
#define __BUG_ENTRY_FILE RISCV_INT " %0 - 2b"
#else
#define __BUG_ENTRY_ADDR RISCV_PTR " 1b"
#define __BUG_ENTRY_FILE RISCV_PTR " %0"
#endif
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define __BUG_ENTRY \
__BUG_ENTRY_ADDR "\n\t" \
__BUG_ENTRY_FILE "\n\t" \
RISCV_SHORT " %1"
#else
#define __BUG_ENTRY \
__BUG_ENTRY_ADDR
#endif
#define BUG() \
do { \
__asm__ __volatile__ ( \
"1:\n\t" \
"ebreak\n" \
".pushsection __bug_table,\"a\"\n\t" \
"2:\n\t" \
__BUG_ENTRY "\n\t" \
".org 2b + %2\n\t" \
".popsection" \
: \
: "i" (__FILE__), "i" (__LINE__), \
"i" (sizeof(struct bug_entry))); \
unreachable(); \
} while (0)
#endif /* !__ASSEMBLY__ */
#else /* CONFIG_GENERIC_BUG */
#ifndef __ASSEMBLY__
#define BUG() \
do { \
__asm__ __volatile__ ("ebreak\n"); \
unreachable(); \
} while (0)
#endif /* !__ASSEMBLY__ */
#endif /* CONFIG_GENERIC_BUG */
#define HAVE_ARCH_BUG
#include <asm-generic/bug.h>
#ifndef __ASSEMBLY__
struct pt_regs;
struct task_struct;
extern void die(struct pt_regs *regs, const char *str);
extern void do_trap(struct pt_regs *regs, int signo, int code,
unsigned long addr, struct task_struct *tsk);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_RISCV_BUG_H */
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