https://github.com/keillion/emsdk-cheatlist

https://github.com/keillion/emsdk-cheatlist

Last synced: 8 days ago
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• Host: GitHub
• URL: https://github.com/keillion/emsdk-cheatlist
• Owner: Keillion
• License: mit
• Created: 2021-07-23T10:05:40.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2023-12-11T06:55:46.000Z (about 1 year ago)
• Last Synced: 2024-10-30T23:12:12.739Z (about 2 months ago)
• Language: JavaScript
• Size: 76.2 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# emsdk-cheatlist

Use cmake + [emsdk](https://emscripten.org/index.html) to build multiple wasm in one time.

Prepare: emscripten 3.1.30

modify emcc.py: https://github.com/Keillion/emscripten/commit/fc55d8790a55fe3b8976a542e1bde47a5295d103

[Dynamic link](https://emscripten.org/docs/compiling/Dynamic-Linking.html) sideModule.

Use [webidl](https://emscripten.org/docs/porting/connecting_cpp_and_javascript/WebIDL-Binder.html).

Generate idl cpp and js for reference

```shell

$ /emsdk/upstream/emscripten/tools/webidl_binder mainModule.idl mainModuleGlue

```

## How to Build

```shell

$ mkdir build

$ cd build

$ emcmake cmake ../

$ emmake make

``` 

In order to see which system libs are actually needed. [refer](https://emscripten.org/docs/compiling/Dynamic-Linking.html#system-libraries)

```shell

$ emmake make VERBOSE=1

```

## Note

`html` need to be host in an HTTP server. The mimetype of `.wasm` needs to set as `application/wasm`.

## Free memery

Not freeing `char *` return value in webidl will cause a memory leak.

====

## std.js

Most fileds in wasmImport or wasmExport are not needed, I save a slimmed std.js here for reference.