学习笔记
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blog's People
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WebAssembly
1. 什么是WebAssembly?
MDN doc:https://developer.mozilla.org/en-US/docs/WebAssembly
2. 怎么使用?
安装编译工具Emscripten:
git clone https://github.com/juj/emsdk.git
cd emsdk
./emsdk install latest
./emsdk activate latest
source ./emsdk_env.sh --build=Release
接下来执行以下命令可将hello.c编译成html:
emcc hello.c -s WASM=1 -o hello.html
Emscripten本来是将C/C++文件编译成asm.js文件的,通过加上-s WASM=1标志可编译成wasm文件。通过上述命令编译出的文件包括hello.html、hello.js、hello.wasm,如果想要只编译生成wasm文件,需要参考WebAssembly Standalone。
WebAssembly Standalone Demo:https://gist.github.com/kripken/59c67556dc03bb6d57052fedef1e61ab
两个工具
-
WABT
支持二进制WebAssembly格式 与 程序员可读的文本格式(S-expression格式)之间的转换
-
wasm2wast Tool:将WebAssembly二进制格式转换成S-expression;
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wast2wasm Tool
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wasm-interp Tool:让开发者可以通过命令行运行WebAssembly二进制
-
-
Binaryen
Compiler infrastructure and toolchain library for WebAssembly
支持asm.js与WebAssembly之间的相互转换;LLVM;RUST等
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