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e039ee4ee3
With a blatant copy of some x86 bits we introduce the alternative runtime patching "framework" to arm64. This is quite basic for now and we only provide the functions we need at this time. This is connected to the newly introduced feature bits. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
16 lines
333 B
C
16 lines
333 B
C
#ifndef __ASM_ALTERNATIVE_ASM_H
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#define __ASM_ALTERNATIVE_ASM_H
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#ifdef __ASSEMBLY__
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.macro altinstruction_entry orig_offset alt_offset feature orig_len alt_len
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.word \orig_offset - .
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.word \alt_offset - .
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.hword \feature
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.byte \orig_len
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.byte \alt_len
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.endm
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_ALTERNATIVE_ASM_H */
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