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-# awsmrt
-The aWsm runtime for efficient Wasm sandboxing. 
+# aWsm (awesome) 
+
+This project is a work-in-progress to build an efficient WASM runtime, **aWsm**, using `silverfish` compiler.
+
+## Setting up the environment
+
+To use a Docker container based environment, that makes your life easy by installing all the required dependencies and builds the toolchain for you.
+Run
+```
+./devenv.sh setup
+```
+**make sure you've docker installed.**
+
+To enter the docker environment,
+```
+./devenv.sh run
+```
+**spawns a shell in the container.**
+
+To setup toolchain path (within a container, per `run`)
+```
+source /opt/awsm/bin/devenv_src.sh
+```
+
+## To run applications
+
+There are a set of benchmarking applications in `code_benches` directory that should be "loadable", WIP!! (**only tested stringsearch for now**.)
+**All the remaining steps are in a Docker container environment.**
+
+```
+cd /awsm/code_benches/
+
+make clean all
+```
+This compiles all subfolders (WASM applications) and copies `<application>_wasm.so` to /awsm/runtime/bin.
+(**Make sure you have that directory in place! (I'll fix the makefiles)**)
+
+```
+cd /awsm/runtime
+make clean all
+```
+This will copy the awsmrt binary to /awsm/runtime/bin.
+
+```
+cd /awsm/runtime/bin
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:`pwd`
+```
+
+**Create input and test files**
+Supports module registration using json format now and invocations as well.
+More importantly, each module runs a udp server and waits for connections.
+The udpclient tool in `runtime/tools` directory uses a format `<ip:port>$<json_request_string>`, 
+connects to <ip:port> and sends the <json_reqest_string> to the IP address it connects at the start.
+
+To run `awsm runtime`,
+```
+./awsmrt ../tests/test_modules.json
+```
+
+To run the udpclient,
+```
+./udpclient ../tests/test_sandboxes.jsondata
+```
+And follow the prompts in udpclient to send requests to the runtime.
+
+## WIP (Work In Progress)
+
+* ~~Dynamic loading of multiple modules~~
+* ~~Multiple sandboxes (includes multiple modules, multiple instances of a module)~~
+* ~~Bookkeeping of multiple modules and multiple sandboxes.~~
+* ~~Runtime to "poll"?? on requests to instantiate a module~~ and respond with the result.
+* ~~Runtime to schedule multiple sandboxes.~~
+* Efficient scheduling and performance optimizations.
+* Runtime to enable event-based I/O (using `libuv`).
+* To enable WASI interface, perhaps through the use of WASI-SDK
+
+## Silverfish compiler
+
+Silverfish compiler uses `llvm` and interposes on loads/stores to enable sandbox isolation necessary in `aWsm` multi-sandboxing runtime.
+`aWsm` runtime includes the compiler-runtime API required for bounds checking in sandboxes.