Hi, I'm trying to debug an issue I have, where emscripten_webgl_create_context fails to find a second canvas. The issue happens even when I checked that the canvas can be found using document.querySelector in the calling JS. In order to debug this, I'd like to step into the library_html5.js code and see what's happening there, but AFAIS, library_html5.js isn't explicitly packaged into the resulting JS code. Is there a way to step into the code using a debugger?
Alternatively, can anyone explain why this might happen? It happens only when I build using -Os or -Oz, not -O3. This is the compilation call: em++ -std=c++17 -o ./bin/appWASM.js \ ./src/*/*.cpp ./build-wasm/srcDerivedFiles/*.cpp ./build-wasm/*.a \ -g0 -Oz \ -s LEGACY_GL_EMULATION=0 \ -s ALLOW_MEMORY_GROWTH=1 \ -s USE_WEBGL2=0 \ -s WASM=1 \ -s NO_EXIT_RUNTIME=1 \ -s EXPORTED_FUNCTIONS='["_main"]' \ -s ERROR_ON_UNDEFINED_SYMBOLS=1 \ -s USE_LIBPNG=1 \ -s USE_FREETYPE=1 \ -s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1 \ -s ASSERTIONS=1 \ -s OFFSCREENCANVAS_SUPPORT=0 \ -s USE_PTHREADS=0 \ --bind -- 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/003e6e31-cb64-48b8-a8a6-9b43695ea863%40googlegroups.com.
