WASMonkey

The WASMonkey patches a WASM object file to replace a set of exported functions with imported functions from another library.

Usage

```text USAGE: wasmonkey [FLAGS] [OPTIONS] --input --output

FLAGS: -n, --original-names Use the original name as a key in the builtins map -h, --help Prints help information -V, --version Prints version information

OPTIONS: -B, --builtins-additional ... Additional builtins function names to replace -b, --builtins Path to the builtins library -m, --builtins-map Path to the builtins map file -i, --input Path to the input file -o, --output Path to the output file ```

builtins_file is an object containing alternative implementations to functions called in the wasm code.

Symbols starting with a builtin_ prefix will be used for substitution.

For example, a memmove() function defined as an external in the WASM object will be replaced by calls to an imported builtin_memmove() function, if builtin_memmove() is present in the builtins file.

A JSON-encoded map of the performed substitutions can be optionally written into builtins_map_file.