Getting "Assertion failed: old table entries must remain the same when linking with multiple dynamic libraries"

[gorinje]

Hi,

Setting dynamicLibraries to more than one .wasm files always provide this error :

Assertion failed: old table entries must remain the same

whatever .wasm files are used.

This is cause by this assert in the generated .js file :

for (var i = 0; i < tableBase; i++) {
        assert(table.get(i) === oldTable[i], 'old table entries must remain the same');
}

The last index of oldTable[i] is always null although table.get(i) has a value.

[gorinje]

Commenting this line assert make the project work though.

[sbc100]

How are you building your side modules? Can you provide a full example perhaps?

Are you using the RUNTIME_LINKED_LIBS option? Or setting Module.dynamicLibraries programatically?

[gorinje]

You are perfectly right, my issue lacks of context. Sorry for that.

My side modules are compiled with the following flags :
-s SIDE_MODULE=1 -s EXPORTED_FUNCTIONS='["_xxxxx"]'

And the main module with :
-s "EXTRA_EXPORTED_RUNTIME_METHODS=['ccall']" -s TOTAL_MEMORY=20MB -s USE_SDL=2 -s USE_ZLIB=1 -s FETCH=1 --emrun -fPIC -s MAIN_MODULE=1

All compilations have been made with -fPIC. All dynamic libraries are linked with Module.dynamicLibraries. I have got 4 side modules. Adding one of them work, but adding any of two of them or more causes this line to raise an assert. Commenting it makes the program working though.

[sbc100]

Interesting .. perhaps we don't have enough testing with multiple side modules.