Awesome
Introduction
This tool statically (AOT) translates (or raises) binaries to LLVM IR.
Building as part of the LLVM tree
cd llvm-project && git clone https://github.com/TBSI-RIOS-Lab/elf-lifter llvm/tools/elf-lifter
mkdir build && cd build
cmake -G "Ninja" -DLLVM_TARGETS_TO_BUILD="X86;ARM" -DLLVM_ENABLE_PROJECTS="clang;lld" -DLLVM_ENABLE_ASSERTIONS=true -DCMAKE_BUILD_TYPE=Release ../llvm
ninja
Usage
llvm-mctoll <ELF>
| Command | Description |
|---|---|
-dh or --help | Display available options |
-d <binary> | Generate LLVM IR for a binary and place the result in <binary>-dis.ll |
--filter-functions-file=<file> | Text file with C functions to exclude or include during raising |
--include-files=[file1,file2,file3,...] or -I file1 -I file2 -I file3 | Specify full path of one or more files with function prototypes to use |
-debug | Print all debug output |
-debug-only=mctoll | Print the LLVM IR after each pass of the raiser |
-debug-only=prototypes | Print ignored duplicate function prototypes in --include-files |
See usage document for additional details of command-line options.
Checking correctness of translation
The easiest way to check the raised LLVM IR <binary>-dis.ll is correct is to compile the IR to an executable using clang and run the resulting executable. The tests in the repository follow this methodology.