Javascript WebAssembly链接错误:导入对象字段';DYNAMICTOP#PTR';这不是一个数字

Javascript WebAssembly链接错误:导入对象字段';DYNAMICTOP#PTR';这不是一个数字,javascript,emscripten,webassembly,Javascript,Emscripten,Webassembly,以下C文件使用emscripten编译为wasm: int counter = 100; int count() { counter += 1; return counter; } $emcc counter.c-o counter.wasm-s wasm=1-s SIDE\u MODULE=1 没有问题。然后,我让Web包将wasm文件(带有)作为UInt8Array加载: var buffer = new ArrayBuffer(648); var uint8 = ne

以下C文件使用emscripten编译为wasm:

int counter = 100;

int count() {
    counter += 1;
    return counter;
}
$emcc counter.c-o counter.wasm-s wasm=1-s SIDE\u MODULE=1
没有问题。然后,我让Web包将wasm文件(带有)作为UInt8Array加载:

var buffer = new ArrayBuffer(648);
var uint8 = new Uint8Array(buffer);
uint8.set([0,97,115,109,1,0,0,0,0,12,6,100,121,108,105,110,107,144,128,192,2,0,1,150,128,128,128,0,5,96,1,127,0,96,1,127,1,127,96,0,1,127,96,2,127,127,0,96,0,0,2,179,129,128,128,0,10,3,101,110,118,14,68,89,78,65,77,73,67,84,79,80,95,80,84,82,3,127,0,3,101,110,118,13,116,101,109,112,68,111,117,98,108,101,80,116,114,3,127,0,3,101,110,118,5,65,66,79,82,84,3,127,0,3,101,110,118,10,109,101,109,111,114,121,66,97,115,101,3,127,0,3,101,110,118,9,116,97,98,108,101,66,97,115,101,3,127,0,6,103,108,111,98,97,108,3,78,97,78,3,124,0,6,103,108,111,98,97,108,8,73,110,102,105,110,105,116,121,3,124,0,3,101,110,118,18,97,98,111,114,116,83,116,97,99,107,79,118,101,114,102,108,111,119,0,0,3,101,110,118,6,109,101,109,111,114,121,2,0,128,2,3,101,110,118,5,116,97,98,108,101,1,112,0,0,3,137,128,128,128,0,8,1,2,0,3,3,2,4,4,6,242,128,128,128,0,20,127,1,35,0,11,127,1,35,1,11,127,1,35,2,11,127,1,65,0,11,127,1,65,0,11,127,1,65,0,11,127,1,65,0,11,127,1,65,0,11,127,1,65,0,11,124,1,35,5,11,124,1,35,6,11,127,1,65,0,11,127,1,65,0,11,127,1,65,0,11,127,1,65,0,11,124,1,68,0,0,0,0,0,0,0,0,11,127,1,65,0,11,125,1,67,0,0,0,0,11,125,1,67,0,0,0,0,11,127,0,65,0,11,7,184,128,128,128,0,4,6,95,99,111,117,110,116,0,6,18,95,95,112,111,115,116,95,105,110,115,116,97,110,116,105,97,116,101,0,8,11,114,117,110,80,111,115,116,83,101,116,115,0,7,8,95,99,111,117,110,116,101,114,3,26,9,129,128,128,128,0,0,10,190,129,128,128,0,8,173,128,128,128,0,1,1,127,2,64,35,10,33,1,35,10,32,0,106,36,10,35,10,65,15,106,65,112,113,36,10,35,10,35,11,78,4,64,32,0,16,0,11,32,1,15,0,11,0,11,133,128,128,128,0,0,35,10,15,11,134,128,128,128,0,0,32,0,36,10,11,141,128,128,128,0,0,2,64,32,0,36,10,32,1,36,11,11,11,146,128,128,128,0,0,35,12,65,0,70,4,64,32,0,36,12,32,1,36,13,11,11,161,128,128,128,0,1,4,127,2,64,35,10,33,3,35,3,65,0,106,40,2,0,33,0,32,0,65,1,106,33,1,32,1,15,0,11,0,11,133,128,128,128,0,1,1,127,1,11,152,128,128,128,0,0,2,64,35,3,65,16,106,36,10,35,10,65,128,128,192,2,106,36,11,16,7,11,11,11,135,128,128,128,0,1,0,35,3,11,1,100,]);
然后,我的JS代码调用以下命令:

import Counter from './wasm/counter'
const counter = new Counter();
实例化失败,错误如下:

LinkError: import object field 'DYNAMICTOP_PTR' is not a Number
wasm加载器对
WebAssembly.Instance(模块,importObject)
使用以下默认选项(importObject):

我做错什么了吗?如何成功加载wasm代码

编辑: 按照@Ghillie的建议,我尝试用不同的优化标志编译C代码:

-O1
-02
-O3
-Os
-Oz
抛出一个
链接器错误:导入对象字段“memoryBase”不是一个数字,这是一个不同的错误,但无法解决问题

编辑2:


仅添加
-O1
优化标志不起作用,但允许使用不同的错误消息来调试代码,因此@Ghillie和我的答案为我的问题提供了完整的解决方案。

使用默认
-O0
以外的任何优化标志编译。例如:

emcc counter.c-O1-o counter.wasm-s wasm=1-s SIDE\u MODULE=1

这里列出了各种优化标志:


解决方案似乎是调整
WebAssembly中使用的
importObject
。实例(模块,importObject)


需要
memoryBase
tableBase
,初始内存值太低(抛出
链接错误:大小不兼容的内存

实例化完成后,我还必须调用
counter.exports.\u count()
而不是
counter.exports.count()

同样感谢@Ghillie,因为确实需要使用
-O1
优化标志


编辑:如果您正在阅读本文并刚刚开始使用WebAssembly,我总结了我的第一次体验,以防有所帮助:

谢谢您的建议,但不幸的是,它不起作用,请参阅我的编辑以了解详细信息。实际上,它很有帮助,因为使用不同的LinkError允许我调试代码,请参阅我的答案,谢谢!:)<代码>memoryBase
tableVase
是必需的,因为您是作为一个辅助模块进行编译的。如果你还没看过的话,你可以多读一点。
{
  'global': {},
  'env': {
    'memory': new Memory({initial: 10, limit: 100}),
    'table': new Table({initial: 0, element: 'anyfunc'})
  }
}
{
  'env': {
    'memoryBase': 0,
    'tableBase': 0,
    'memory': new WebAssembly.Memory({initial: 256}),
    'table': new WebAssembly.Table({initial: 0, element: 'anyfunc'})
  }
}