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chore (wasi): wasm bigint issue

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ecmscripten has this flag "-sWASM_BIGINT=1" which make functions like
fd_pread and seek to have different signature where the uint64 offset
are represented as offset_lo and offset_hi. With this flag, the offset
become of type BigInt
This commit is contained in:
MickaelK 2025-04-25 10:18:09 +10:00
parent e63ff46c6d
commit c7c7113f52
1 changed files with 2 additions and 2 deletions
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4
public/assets/helpers/loader_wasm.js
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@ -291,14 +291,14 @@ export class Wasi {
return 0; return 0;
} }
fd_pread(fd, iovs, iovs_len, offset64, nread) { fd_pread(fd, iovs, iovs_len, offset_lo, offset_hi, nread) {
const file = FS[fd]; const file = FS[fd];
if (!file) { if (!file) {
console.error(`Invalid fd: ${fd}`); console.error(`Invalid fd: ${fd}`);
return -1; return -1;
} }
const start = Number(offset64); const start = (offset_hi >>> 0) * 0x100000000 + (offset_lo >>> 0);
const ioVec = new Uint32Array(this.#instance.exports.memory.buffer, iovs, iovs_len * 2); const ioVec = new Uint32Array(this.#instance.exports.memory.buffer, iovs, iovs_len * 2);
const mem = new Uint8Array(this.#instance.exports.memory.buffer); const mem = new Uint8Array(this.#instance.exports.memory.buffer);