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