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Sep 25

Crash reporter for Emscripten sites - C++ exceptions in window.onerror

Dear Experts, I'm trying to build a basic crash reporter for my Emscripten project. I'll

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Crash reporter for Emscripten sites - C++ exceptions in window.onerror

Dear Experts, I'm trying to build a basic crash reporter for my Emscripten project. I'll

Sep 25

John Dallman, … Sam Clegg16

Sep 23

Catching out-of-bounds memory accesses

To tie this thread off, I'm going to settle for my test harness crashing on bad memory accesses

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Catching out-of-bounds memory accesses

To tie this thread off, I'm going to settle for my test harness crashing on bad memory accesses

Sep 23

Sep 11

[PSA] Plan to remove RELOCATABLE and LINKABLE settings

See https://github.com/emscripten-core/emscripten/issues/25262 These settings are mostly used to

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[PSA] Plan to remove RELOCATABLE and LINKABLE settings

See https://github.com/emscripten-core/emscripten/issues/25262 These settings are mostly used to

Sep 11

Phil Endecott, … Sam Clegg5

Sep 2

MAIN_THREAD_ASYNC_EM_ASM and pthread locks on main thread

On Sat, Aug 30, 2025 at 9:15 AM Thomas Lively <tli...@google.com> wrote: Hi Phil, Glad you

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MAIN_THREAD_ASYNC_EM_ASM and pthread locks on main thread

On Sat, Aug 30, 2025 at 9:15 AM Thomas Lively <tli...@google.com> wrote: Hi Phil, Glad you

Sep 2

Aug 30

Sharing WebGL textures between main thread and background threads / offscreen canvases

Dear Experts, I have an OpenGL app which I successfully ported to Emscripten back in 2021. That port

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Sharing WebGL textures between main thread and background threads / offscreen canvases

Dear Experts, I have an OpenGL app which I successfully ported to Emscripten back in 2021. That port

Aug 30

Mo_Al_, Alon Zakai2

Aug 25

wasmbind, js-sys and web-sys but for C++

Very cool! I've wondered for a while if a wasm-bindgen-like approach would be useful for people.

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wasmbind, js-sys and web-sys but for C++

Very cool! I've wondered for a while if a wasm-bindgen-like approach would be useful for people.

Aug 25

Brendan Dahl, … キャロウ　マーク4

Aug 4

Proposal: Require C++17 for embind

> On Aug 4, 2025, at 19:51, John Dallman <jgdats...@gmail.com> wrote: > > I'd

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Proposal: Require C++17 for embind

> On Aug 4, 2025, at 19:51, John Dallman <jgdats...@gmail.com> wrote: > > I'd

Aug 4

キャロウ　マーク, Brendan Dahl5

Aug 1

How to use allow_raw_pointer?

FWIW, I've added policies to properties[1]. You can now do obj.set("a", somePtr,

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How to use allow_raw_pointer?

FWIW, I've added policies to properties[1]. You can now do obj.set("a", somePtr,

Aug 1

Stephan Bergmann, Sam Clegg5

Jul 24

Accessing a thread's module instance in an -sMODULARIZE -pthread setting?

On 7/24/25 01:14, 'Sam Clegg' via emscripten-discuss wrote: > I think you could try

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Accessing a thread's module instance in an -sMODULARIZE -pthread setting?

On 7/24/25 01:14, 'Sam Clegg' via emscripten-discuss wrote: > I think you could try

Jul 24

Carl Woffenden, Thomas Grund2

Jun 22

Re: Digest for emscripten-discuss@googlegroups.com - 1 update in 1 topic

I checked `-sASSERTIONS` and `-sASSERTIONS=2` without getting assertions/warnings. c...@numfum.com

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Re: Digest for emscripten-discuss@googlegroups.com - 1 update in 1 topic

I checked `-sASSERTIONS` and `-sASSERTIONS=2` without getting assertions/warnings. c...@numfum.com

Jun 22

Thomas Grund, Sam Clegg7

Jun 18

onRuntimeInitialized is called in Firefox but not in Chrome

I checked the `-O0` without getting assertions/warnings. s...@google.com schrieb am Montag, 16. Juni

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onRuntimeInitialized is called in Firefox but not in Chrome

I checked the `-O0` without getting assertions/warnings. s...@google.com schrieb am Montag, 16. Juni

Jun 18

Александр Гурьянов, Alon Zakai3

May 29

Video: Estimating and Porting Projects to the Web

Hi, not yet. While WasmFS was still in development, we implemented several internal filesystem tools

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Video: Estimating and Porting Projects to the Web

Hi, not yet. While WasmFS was still in development, we implemented several internal filesystem tools

May 29

キャロウ　マーク2

May 24

Uncaught (in promise) TypeError: handle is undefined

I figured this one out too. I built a debug version and at run time a message appeared in the console

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Uncaught (in promise) TypeError: handle is undefined

I figured this one out too. I built a debug version and at run time a message appeared in the console

May 24

キャロウ　マーク, Sam Clegg3

May 23

SDL2 not found in 4.0.9

On May 23, 2025, at 0:20, 'Sam Clegg' via emscripten-discuss <emscripten-discuss@

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SDL2 not found in 4.0.9

On May 23, 2025, at 0:20, 'Sam Clegg' via emscripten-discuss <emscripten-discuss@

May 23

Sam Clegg, … Brendan Dahl7

May 19

[RFC] Changes to how "modularization" works in emscripten

There has recently been a lot of progress on the modularization options available in emscripten.

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[RFC] Changes to how "modularization" works in emscripten

There has recently been a lot of progress on the modularization options available in emscripten.

May 19

Sam Clegg, Jeremy Friesner3

May 16

Is anyone still running emscripten on x86 macOS?

Thanks Jeremy. From the discussion on the bug it seems there are enough folks still using x86 macOS

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Is anyone still running emscripten on x86 macOS?

Thanks Jeremy. From the discussion on the bug it seems there are enough folks still using x86 macOS

May 16

Apr 29

PSA: Emscripten will no longer generate separate ww.js/aw.js files with WASM_WORKERS/AUDIO_WORKLET

Just like we did earlier for pthread's worker.js we have now eliminated the separate `ww.js` and

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PSA: Emscripten will no longer generate separate ww.js/aw.js files with WASM_WORKERS/AUDIO_WORKLET

Just like we did earlier for pthread's worker.js we have now eliminated the separate `ww.js` and

Apr 29

Apr 13

Unable to use any emscripten.h function which is defined in javascript in a statically linked library

I fixed it: I was compiling to a build/index file and I still had an old JS glue code file so I didn

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Unable to use any emscripten.h function which is defined in javascript in a statically linked library

I fixed it: I was compiling to a build/index file and I still had an old JS glue code file so I didn

Apr 13

Søren Gammelmark, Eduard Mironenko2

Apr 8

A question about BindingType and fallible conversion

Do we get paid for answering these questions or is there any portal that offers tasks that you can

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A question about BindingType and fallible conversion

Do we get paid for answering these questions or is there any portal that offers tasks that you can

Apr 8

Александр Гурьянов, Sam Clegg4

Apr 3

Question About pthread Message Handling in Web Workers

In the old filesystem all FS calls are proxied back to the main thread and run there. The proxying

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Question About pthread Message Handling in Web Workers

In the old filesystem all FS calls are proxied back to the main thread and run there. The proxying

Apr 3

Stephan Bergmann, Sam Clegg2

Apr 2

"Add OpenGL::GL cmake imported targets" breaks Qt6 trunk configure

Thanks for reporting. I think this should fix it: https://github.com/emscripten-core/emscripten/pull/

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"Add OpenGL::GL cmake imported targets" breaks Qt6 trunk configure

Thanks for reporting. I think this should fix it: https://github.com/emscripten-core/emscripten/pull/

Apr 2

Mar 25

ASYNCIFY and BigInt Issue

Hello, I have a C++ class say, class MediaPacket { public: int64_t timestamp; } EMSCRIPTEN_BINDINGS(

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ASYNCIFY and BigInt Issue

Hello, I have a C++ class say, class MediaPacket { public: int64_t timestamp; } EMSCRIPTEN_BINDINGS(

Mar 25

Mar 19

Proposal to remove EMULATE_FUNCTION_POINTER_CASTS setting

The primary (known) user of this setting (CPython) decided to go a different route several years ago

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Proposal to remove EMULATE_FUNCTION_POINTER_CASTS setting

The primary (known) user of this setting (CPython) decided to go a different route several years ago

Mar 19

Jeremy Friesner

Mar 18

Best way to pass the C++ object's "this" pointer to a JavaScript callback method?

I'm using the "Non-abstract virtual methods" approach (ie with optional_override()) to

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Best way to pass the C++ object's "this" pointer to a JavaScript callback method?

I'm using the "Non-abstract virtual methods" approach (ie with optional_override()) to

Mar 18

fidel e., … Sam Clegg5

Mar 13

WASM FS no copy

On Thu, Mar 13, 2025 at 8:35 AM fidel e. <fidel....@gmail.com> wrote: Thank you for your

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WASM FS no copy

On Thu, Mar 13, 2025 at 8:35 AM fidel e. <fidel....@gmail.com> wrote: Thank you for your

Mar 13

Xellos, … Sam Clegg5

Mar 5

Optimization levels and settings

On Wed, Mar 5, 2025 at 2:22 AM Xellos <jakub...@gmail.com> wrote: I see. Can I reliably

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Optimization levels and settings

On Wed, Mar 5, 2025 at 2:22 AM Xellos <jakub...@gmail.com> wrote: I see. Can I reliably

Mar 5

Jeremy Friesner

Feb 25

Memory management in BindingType for string class

Hi all, I defined a custom BindingType<> structure for my C++ String class, and it (used along

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Memory management in BindingType for string class

Hi all, I defined a custom BindingType<> structure for my C++ String class, and it (used along

Feb 25

Tim Tommerson, Sam Clegg5

Feb 20

emscripten_set_main_loop change causes breakage

On Thu, Feb 20, 2025 at 11:38 AM Tim Tommerson <tim666...@gmail.com> wrote: Hello , Thanks

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emscripten_set_main_loop change causes breakage

On Thu, Feb 20, 2025 at 11:38 AM Tim Tommerson <tim666...@gmail.com> wrote: Hello , Thanks

Feb 20

Mo_Al_, Tommie Moore4

Feb 13

Getting FLTK to run without issues in the browser

I'm not sure I understand the question. Do you mean build your code which uses FLTK? Sent from my

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Getting FLTK to run without issues in the browser

I'm not sure I understand the question. Do you mean build your code which uses FLTK? Sent from my

Feb 13

John Dallman, Sam Clegg4

Feb 13

Should the copyright date from "emcc --version" be updated?

Thanks! The product I'm working on is extremely careful about compiler version changes, and there

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Should the copyright date from "emcc --version" be updated?

Thanks! The product I'm working on is extremely careful about compiler version changes, and there

Feb 13

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