29 lines
776 B
C
29 lines
776 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __VDSO_EXTABLE_H
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#define __VDSO_EXTABLE_H
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/*
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* Inject exception fixup for vDSO code. Unlike normal exception fixup,
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* vDSO uses a dedicated handler the addresses are relative to the overall
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* exception table, not each individual entry.
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*/
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#ifdef __ASSEMBLY__
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#define _ASM_VDSO_EXTABLE_HANDLE(from, to) \
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ASM_VDSO_EXTABLE_HANDLE from to
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.macro ASM_VDSO_EXTABLE_HANDLE from:req to:req
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.pushsection __ex_table, "a"
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.long (\from) - __ex_table
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.long (\to) - __ex_table
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.popsection
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.endm
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#else
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#define _ASM_VDSO_EXTABLE_HANDLE(from, to) \
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".pushsection __ex_table, \"a\"\n" \
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".long (" #from ") - __ex_table\n" \
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".long (" #to ") - __ex_table\n" \
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".popsection\n"
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#endif
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#endif /* __VDSO_EXTABLE_H */
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