Packaged debug builds crash on launch

[BastianKusserow]

Hey!

after doing something like \.gradlew archive,Debug,... package with a Debug build, the app crashes right on launch. I debugged that a bit and the error message was telling me AppName.debug.dylib not valid for use in process: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed..

Turns out, it seems like Xcode 16 introduced a new build setting, called ENABLE_DEBUG_DYLIB that, when set to YES, produces a file named AppName.debug.dylib, that is loaded by the main binary on launch. That dylib apparently is not signed properly (and I am not sure if it should be there in the first place) as its mainly used that things like previews work properly.

I worked around that by providing ENABLE_DEBUG_DYLIB=NO as additional build parameter, but wonder if that should maybe be done by the gxp?

Happy to do a PR on that once clarified how to proceed with that.

[renep]

I have not yet run into this issue.
I'm wondering if it make sense to sign a debug dylib. When you want to debug something, then you run it locally and build it with Xcode. I don't know if there is a case where you debug a version that was build using gxp? So maybe the ENABLE_DEBUG_DYLIB=NO should be added automatically when building.

I have only take a quick look at the Codesign code. There is an option that all "*.dylib" should be codesigned. The question is why your debug.dylib was not found.

[BastianKusserow]

We have that option to share a debug build via firebase and try to stick to the debug build as close as possible. Today I also questioned if that's the right thing to do, but anyways, I think the gxp could always set the flag to false as you also suggested.

I'll hack together a quick repo tomorrow and share it.