Maksim Panchenko b971d4d7c8 [BOLT][AArch64] Add symbolizer for AArch64 disassembler. NFCI (#127969) ...

Add AArch64MCSymbolizer that symbolizes `MCInst` operands during
disassembly. The symbolization was previously done in
`BinaryFunction::disassemble()`, but it is also required by
`scanExternalRefs()` for "lite" mode functionality. Hence, similar to
x86, I've implemented the symbolizer interface that uses
`BinaryFunction` relocations to properly create instruction operands. I
expect the result of the disassembly to be identical after the change.

AArch64 disassembler was not calling `tryAddingSymbolicOperand()` for
`MOV` instructions. Fix that. Additionally, the disassembler marks `ldr`
instructions as branches by setting `IsBranch` parameter to true. Ignore
the parameter and rely on `MCPlusBuilder` interface instead.

I've modified `--check-encoding` flag to check symolization of operands
of instructions that have relocations against them.

2025-03-03 12:44:28 -08:00

160 KiB

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