Comments (5)
emcc math.c -Os -s BINARYEN_ASYNC_COMPILATION=0 -s WASM=1 -s SIDE_MODULE=1 -o math.wasm
function loadWebAssembly(filename, imports = {}) {
return fetch(filename)
.then(response => response.arrayBuffer())
.then(buffer => WebAssembly.compile(buffer))
.then(module => {
imports.env = imports.env || {}
Object.assign(imports.env, {
memoryBase: 0,
tableBase: 0,
DYNAMICTOP_PTR: 0,
tempDoublePtr: 0,
ABORT: 0,
memory: new WebAssembly.Memory({ initial: 256, maximum: 256 }),
table: new WebAssembly.Table({ initial: 2, maximum: 8, element: 'anyfunc' }),
abortStackOverflow: function (allocSize) { },
nullFunc_X: function () { },
abort: function () { }
})
return new WebAssembly.Instance(module, imports)
})
}
loadWebAssembly('math.wasm').then(instance => {
const square = instance.exports._square
console.log('2^2 =', square(2))
console.log('3^2 =', square(3))
console.log('(2 + 5)^2 =', square(2 + 5))
})
from wasm-examples.
what @Jonnywang said is perfectly correct and some changes are needed accroding to your question. .Just like this:
table: new WebAssembly.Table({ initial: 4, maximum: 8, element: 'anyfunc' })
from wasm-examples.
我运行了你代码里面的wasm文件是正确的,但是我自己生成的wasm运行会报错,我使用的命令是
emcc math.c -Os -s WASM=1 -s SIDE_MODULE=1 -o math.wasm
我的环境是
emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 1.38.36
clang version 6.0.1 (Cswircachegitchromium.googlesource.com-external-github.com-emscripten--core-emscripten--fastcomp--clang 98df4be387dde3e3918fa5bbb5fc43e1a0e1daac) (Cswircachegitchromium.googlesource.com-external-github.com-emscripten--core-emscripten--fastcomp 1b4148f39a69c7fc62edadd85e4122b68694dfb7) (emscripten 1.38.31 : 1.38.31)
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir: D:\emsdk\fastcomp\fastcomp\bin
shared:INFO: (Emscripten: Running sanity checks)
求指点
from wasm-examples.
这是我的报错的信息(index):30 Uncaught (in promise) LinkError: WebAssembly.Instance(): Import #0 module="env" function="__memory_base" error: global import must be a number or WebAssembly.Global object
from wasm-examples.
Fixed by dad3d37
from wasm-examples.
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