disasster [WIP] 🚧

Golang AARCH64 Disassembler.

---

Install

$ go get github.com/blacktop/disasster

Getting Started 🚀

package main

import "github.com/blacktop/disasster

func main() {

}

Development 👩‍💻

Requirments

$ brew install llvm z3

Or Build

$ git clone https://github.com/llvm/llvm-project.git
$ cd llvm-project/llvm
$ mkdir build
$ cd build
$ cmake ..
$ make AArch64CommonTableGen -j

Generate table.json

$ git clone https://github.com/llvm/llvm-project.git
$ cd llvm-project/llvm/lib/Target/AArch64
$ git checkout release/10.x
# if you already installed llvm from homebrew
$ /usr/local/opt/llvm/bin/llvm-tblgen AArch64.td -I=../../../include --dump-json > table.json

Update tables.go

$ go generate ./...

TODO ☑️

• Integrate with https://github.com/llir/llvm
• Impliment the DecoderMethods

❯ jq '.[]? | select(.DecoderMethod? != null) | .DecoderMethod' table.json | sort -n | uniq -c | sort
   1 "DecodeMRSSystemRegister"
   1 "DecodeMSRSystemRegister"
   1 "DecodeSImm<10>"
   1 "DecodeSImm<8>"
   1 "DecodeSVEIncDecImm"
   1 "DecodeVecShiftL16Imm"
   1 "DecodeVecShiftL32Imm"
   1 "DecodeVecShiftL64Imm"
   1 "DecodeVecShiftL8Imm"
   1 "DecodeVecShiftR16ImmNarrow"
   1 "DecodeVecShiftR32ImmNarrow"
   1 "DecodeVecShiftR64Imm"
   1 "DecodeVecShiftR64ImmNarrow"
   2 "DecodeAdrInstruction"
   2 "DecodeFMOVLaneInstruction"
   2 "DecodeImm8OptLsl<16>"
   2 "DecodeImm8OptLsl<32>"
   2 "DecodeImm8OptLsl<64>"
   2 "DecodeImm8OptLsl<8>"
   2 "DecodePCRelLabel19"
   2 "DecodeSImm<5>"
   2 "DecodeSImm<6>"
   2 "DecodeSImm<9>"
   2 "DecodeSystemPStateInstruction"
   2 "DecodeUnconditionalBranch"
   2 "DecodeVecShiftR16Imm"
   2 "DecodeVecShiftR32Imm"
   2 "DecodeVecShiftR8Imm"
   3 "DecodeFixedPointScaleImm32"
   3 "DecodeFixedPointScaleImm64"
   4 "DecodeSVELogicalImmInstruction"
   4 "DecodeTestAndBranch"
   5 "DecodeSImm<4>"
   6 "DecodeMoveImmInstruction"
   8 "DecodeAddSubImmShift"
   8 "DecodeLogicalImmInstruction"
   8 "DecodeModImmTiedInstruction"
  10 "DecodeMemExtend"
  12 "DecodeAddSubERegInstruction"
  21 "DecodeModImmInstruction"
  24 "DecodeThreeAddrSRegInstruction"
  24 "DecodeUnsignedLdStInstruction"
  40 "DecodeExclusiveLdStInstruction"
  46 "DecodePairLdStInstruction"
  96 "DecodeSignedLdStInstruction"

License

MIT Copyright (c) 2020 blacktop