Error: Failed to initialize the compiled Wasm binary with Wizer

示されている jco componentize コマンドと cowsay の JavaScript および WIT 入力を使って失敗を再現します。jco/node_modules/@bytecodealliance/componentize-js/src/componentize.js の 261 行付近にある報告された呼び出しから調査を始め、その後 Wizer のデバッグソースとバックトレースを調べて、なぜ初期化で trap が発生するのかを特定します。コマンドが正常に完了するか、回帰テストによって根本の失敗を明確に報告できれば完了です。

Hi, I'm getting a wizer error when trying to use jco. This is a continuation of troubleshooting of https://github.com/bytecodealliance/StarlingMonkey/issues/15#issuecomment-2350455813. In jco/node_modules/@bytecodealliance/componentize-js/src/componentize.js, I turned on debugging.

const DEBUG_BINDINGS = true;
const DEBUG_CALLS = true;

I pushed the output debugging sources to https://github.com/cataggar/StarlingMonkey15/tree/main/b0c26fbad66e

~/ms/jco> node src/jco.js componentize /Users/cataggar/ms/StarlingMonkey15/cowsay/cowsay.js --wit /Users/cataggar/ms/StarlingMonkey15/cowsay/src/cowsay.wit -o /Users/cataggar/ms/StarlingMonkey15/cowsay.wasm

--- Wizer Env ---
{
  DEBUG: '1',
  SOURCE_NAME: 'cowsay.js',
  IMPORT_WRAPPER_CNT: '0',
  EXPORT_CNT: '1',
  WASMTIME_BACKTRACE_DETAILS: '1',
  EXPORT0_NAME: 'export_tsVersion',
  EXPORT0_ARGS: '',
  EXPORT0_RET: '*i32',
  EXPORT0_RETSIZE: '8',
  IMPORT_CNT: 0
}
(wizer) create the memory buffer JS object
(wizer) create the realloc JS function
(wizer) create the 0 import JS functions
(wizer) setting the binding global
(wizer) complete
Redirecting call to abort() to mozalloc_abort

Error: the `componentize.wizer` function trapped

Caused by:
    0: error while executing at wasm backtrace:
           0: 0x7a3ec5 - <unknown>!<wasm function 11740>
           1: 0x7a7fee - <unknown>!<wasm function 12478>
           2: 0x7a84e0 - <unknown>!<wasm function 12582>
           3: 0x72c8c0 - <unknown>!<wasm function 6861>
           4: 0x352387 - <unknown>!<wasm function 522>
           5: 0x6ad3b2 - <unknown>!<wasm function 4800>
           6: 0x74ed01 - <unknown>!<wasm function 7670>
           7: 0x36bb2f - <unknown>!<wasm function 562>
           8: 0x4dcd55 - <unknown>!<wasm function 1527>
           9: 0xa91cf - <unknown>!<wasm function 79>
          10: 0x3424d4 - <unknown>!<wasm function 498>
          11: 0x66ac73 - <unknown>!<wasm function 4035>
          12: 0x625349 - <unknown>!<wasm function 3385>
          13: 0x422874 - <unknown>!<wasm function 940>
          14: 0x4225c1 - <unknown>!<wasm function 940>
          15: 0x2d00ad - <unknown>!<wasm function 358>
          16: 0x1fc7ba - <unknown>!<wasm function 186>
          17: 0x50ceed - <unknown>!<wasm function 1721>
          18: 0x33853e - <unknown>!<wasm function 485>
    1: wasm trap: wasm `unreachable` instruction executed
(jco componentize) Error: Failed to initialize the compiled Wasm binary with Wizer:
Wizering failed to complete
Binary and sources available for debugging at /var/folders/xm/hr4sq0d567vfs0xdth9t38zc0000gn/T/b0c26fbad66e

    at componentize (file:///Users/cataggar/ms/jco/node_modules/@bytecodealliance/componentize-js/src/componentize.js:261:13)
    at async componentize (file:///Users/cataggar/ms/jco/src/cmd/componentize.js:11:25)
    at async file:///Users/cataggar/ms/jco/src/jco.js:200:9