Overview
| Comment: | Obfuscate tagged pointers on ARM64/ELF |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | tagged-pointers |
| Files: | files | file ages | folders |
| SHA3-256: |
01d06c0f5d7c6e9902a396b7f9347c82 |
| User & Date: | js on 2020-07-18 12:54:58 |
| Other Links: | branch diff | manifest | tags |
Context
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2020-07-18
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| 15:52 | Obfuscate tagged pointers on MIPS/ELF check-in: 86014b7cc2 user: js tags: tagged-pointers | |
| 12:54 | Obfuscate tagged pointers on ARM64/ELF check-in: 01d06c0f5d user: js tags: tagged-pointers | |
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2020-07-14
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| 23:43 | Obfuscate tagged pointers on MIPS64/ELF check-in: f073f79c09 user: js tags: tagged-pointers | |
Changes
Modified src/runtime/lookup-asm/lookup-asm-arm64-elf.S from [ff623479ef] to [a8a0a8247a].
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47 48 49 50 51 52 53 54 55 56 57 58 59 60 | cbz x2, \not_found mov x0, x2 ret .Ltagged_pointer_\name: and x0, x0, #0xE lsl x0, x0, #2 adrp x2, :got:objc_tagged_pointer_classes ldr x2, [x2, #:got_lo12:objc_tagged_pointer_classes] ldr x2, [x2, x0] ldr x2, [x2, #64] | > > > > | 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | cbz x2, \not_found mov x0, x2 ret .Ltagged_pointer_\name: adrp x2, :got:objc_tagged_pointer_secret ldr x2, [x2, #:got_lo12:objc_tagged_pointer_secret] ldr x2, [x2] eor x0, x0, x2 and x0, x0, #0xE lsl x0, x0, #2 adrp x2, :got:objc_tagged_pointer_classes ldr x2, [x2, #:got_lo12:objc_tagged_pointer_classes] ldr x2, [x2, x0] ldr x2, [x2, #64] |
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