Hi, I have a cpp program which uses opencv modules and I have successfully 
compiled it to webassembly using emscripten. It works very well on chrome 
in my macbook. However when I tried to load the page through localhost in 
my phone using android chrome it threw the following error.

Uncaught (in promise) RuntimeError: abort(CompileError: 
WebAssembly.instantiate(): Compiling function #21 failed: Invalid opcode 
0xfe (enable with --experimental-wasm-threads) @+5378). Build with -s 
ASSERTIONS=1 for more info.

So I tried to figure out what was causing this and understood that it only 
happens after I have used a static library from opencv to build my wasm app 
using the following command.

emcc -O3 -o hello.js -s 
-I/Users/user1/MyDocuments/work/new/emscripten_playground/playground 
libopencv_core.a hello.cpp -s WASM=1 -s 
EXTRA_EXPORTED_RUNTIME_METHODS='["cwrap"]' -s SINGLE_FILE=1

if I take out the libopencv_core.a and remove the lines that use stuff from 
that module, the wasm loads without any warnings in the android chrome.
But I need to use those modules.
Please tell me if you got any idea about how to solve this problem.
Also if I enable the experimental webassembly flag in the android chrome it 
works without any problems. But I don't think I can do that through code so 
I need to find a way to fix this without the experimental flag. There has 
to be a way because opencv.js(wasm embedded) that is available from the 
opencv documentation runs without any errors on the android chrome .

-- 
You received this message because you are subscribed to the Google Groups 
"emscripten-discuss" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/emscripten-discuss/9bbea4b2-072d-490d-b3d5-eaa4065d8252n%40googlegroups.com.

Reply via email to