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arm64e

Apple's variant of the ARM64 ABI in which return addresses and code pointers are signed with pointer authentication.

arm64e is Apple's ARMv8.3+ ABI slice used by its system binaries: prologues sign the return address with pacibsp and return with retab, and function pointers, vtable pointers and some data pointers are signed with diversified keys; third-party code generally ships as plain arm64.

See also

pointer authentication vtable ABI return address
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