| 1 | /* |
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| 2 | * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
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| 3 | * Licensed under the GPL |
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| 4 | */ |
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| 5 | |
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| 6 | #include <arch.h> |
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| 7 | #include <sysdep/ptrace.h> |
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| 8 | |
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| 9 | /* These two are from asm-um/uaccess.h and linux/module.h, check them. */ |
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| 10 | struct exception_table_entry |
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| 11 | { |
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| 12 | unsigned long insn; |
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| 13 | unsigned long fixup; |
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| 14 | }; |
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| 15 | |
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| 16 | const struct exception_table_entry *search_exception_tables(unsigned long add); |
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| 17 | |
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| 18 | /* Compare this to arch/i386/mm/extable.c:fixup_exception() */ |
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| 19 | int arch_fixup(unsigned long address, struct uml_pt_regs *regs) |
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| 20 | { |
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| 21 | const struct exception_table_entry *fixup; |
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| 22 | |
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| 23 | fixup = search_exception_tables(add: address); |
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| 24 | if (fixup) { |
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| 25 | UPT_IP(regs) = fixup->fixup; |
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| 26 | return 1; |
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| 27 | } |
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| 28 | return 0; |
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| 29 | } |
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| 30 | |
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