To debug your application, you need to compile them with debug information. You can use -g
option when compiling the source code if you are using wasi-sdk (also work for emcc and rustc):
/opt/wasi-sdk/bin/clang -g test.c -o test.wasm
Then you will get test.wasm
which is a WebAssembly module with embedded DWARF sections. Further, you can use llvm-dwarfdump
to check if the generated wasm file contains DWARF information:
llvm-dwarfdump-12 test.wasm
See Debugging with interpreter.
See Debugging with AOT.