4c2e7ce8b9
The var name "fixup" is a bit confusing, since this is a exception_table_entry. Use "ex" instead to refer to an entire entry. In subsequent patches we'll use `fixup` to refer to the fixup field specifically. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
28 lines
677 B
C
28 lines
677 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
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* Lennox Wu <lennox.wu@sunplusct.com>
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* Chen Liqin <liqin.chen@sunplusct.com>
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* Copyright (C) 2013 Regents of the University of California
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*/
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#include <linux/extable.h>
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#include <linux/module.h>
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#include <linux/uaccess.h>
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bool fixup_exception(struct pt_regs *regs)
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{
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const struct exception_table_entry *ex;
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ex = search_exception_tables(regs->epc);
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if (!ex)
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return false;
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if (regs->epc >= BPF_JIT_REGION_START && regs->epc < BPF_JIT_REGION_END)
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return rv_bpf_fixup_exception(ex, regs);
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regs->epc = (unsigned long)&ex->fixup + ex->fixup;
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return true;
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}
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