When building my app with a build of latest emsdk 3.1.69, I found that
the virtual file system would no longer be populated and only contained
the bare hardcoded minimum. Turned out that
commit 483cdcd5306780520a2de8856fcd13910e71497e
Author: Sam Clegg <[email protected]>
Date: Thu Oct 3 14:35:51 2024 -0700
Micro-optimize preRun/postRun handling. NFC (#22671)
[...]
diff --git a/src/preamble.js b/src/preamble.js
index d37cb9fe7..3a6aee9c9 100644
--- a/src/preamble.js
+++ b/src/preamble.js
@@ -195,11 +195,10 @@ function preRun() {
assert(!ENVIRONMENT_IS_PTHREAD); // PThreads reuse the runtime from the main
thread.
#endif
#if expectToReceiveOnModule('preRun')
- if (Module['preRun']) {
- if (typeof Module['preRun'] == 'function') Module['preRun'] =
[Module['preRun']];
- while (Module['preRun'].length) {
- addOnPreRun(Module['preRun'].shift());
- }
+ var preRuns = Module['preRun'];
+ if (preRuns) {
+ if (typeof preRuns == 'function') preRuns = [preRuns];
+ preRuns.forEach(addOnPreRun);
}
#endif
callRuntimeCallbacks(__ATPRERUN__);
[...]
caused the function runWithFS to no longer be called, because it gets
added to Module.preRun from within the function runMetaWithFS that
itself is called from within the function preRun.
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