DISABLE_EXCEPTION_CATCHING=2 with EXCEPTION_CATCHING_WHITELIST seems not to be working in latest upstream backend

[Rohit Saini]

Hi All,

We made a update to 1.39.6 recently . Previously we were on 1.38.34 and using -s DISABLE_EXCEPTION_CATCHING=2 -s EXCEPTION_CATCHING_WHITELIST="@whitelist.txt", and it was working fine.

But in latest upstream it seems to be stopped working.

I wrote a small program to verify that, it is not working with this program as well.

#include <iostream>

#include "emscripten.h"

using namespace std;

extern "C"

void fun() {

   try {

      throw 10000;

   } catch(...) {

      cout<<"hello"<<endl;

   }

}

int main () {

   fun();

   return 0;

}

I run this command 

emcc test.cpp -s DISABLE_EXCEPTION_CATCHING=2 -s EXCEPTION_CATCHING_WHITELIST=["_fun"] -o test.html

with 1.38.34 it's working fine and printing hello, but with 1.39.6 function is not catching exception and "uncaught exception" is printing on console.

Regards,

[Rohit Saini]

Hi,

Is anyone looking into this. Actually my team is blocked by this issue. Or can anyone please tell me any workaround.

Regards,

Rohit Saini

[Sam Clegg]

Seems like a regression with the upstream backend.  Does it work with 1.39.6 under fastcomp?

Would you mind opening a bug on the emscripten bug tracker?

cheers,

sam

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[Rohit Saini]

Hi,

I added an issue https://github.com/emscripten-core/emscripten/issues/10371 

This small example seems to be working with 1.39.6 under fastcomp. But I am not able to check this with my actual project as building my project with latest fastcomp gives some other errors.

regards,

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