Missing `_LSCopyAllHandlersForURLScheme` symbol

[Lazerbeak12345]

Expected Result
What did you expect to happen?

The application would not error on missing this symbol

Actual Result
What did happen?

Gimp 2.99.18 x86_64 has this in it's logs before a core dump.

dyld: Symbol not found: _LSCopyAllHandlersForURLScheme
  Referenced from: /Applications/gimp.app/Contents/MacOS/../Resources/lib/libgio-2.0.0.dylib
  Expected in: /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
 in /Applications/gimp.app/Contents/MacOS/../Resources/lib/libgio-2.0.0.dylib
abort_with_payload: reason: Symbol not found: _LSCopyAllHandlersForURLScheme
  Referenced from: /Applications/gimp.app/Contents/MacOS/../Resources/lib/libgio-2.0.0.dylib
  Expected in: /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
 in /Applications/gimp.app/Contents/MacOS/../Resources/lib/libgio-2.0.0.dylib; code: 4
Abort trap: 6 (core dumped)

Steps To Reproduce

1. Get gimp-2.99.18-x86_64.dmg from the official download page. (this is an old version of gimp)
2. Install the app
3. run /Applications/gimp.app/Contents/MacOS/gimp

System Information
What system are you using?

Software	Version
Linux Kernel	6.14.2-artix1-1
Darling	darling master @ a458d15df

[Lazerbeak12345]

/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices is not present on my macOS sonoma system - though I must admit, I have no idea if this version of gimp would work on that version (haven't tested it yet)

[CuriousTommy]

/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices is not present on my macOS sonoma system

Starting with macOS Big Sur, pretty much all the frameworks live inside a shared cache. You'll need to use a tool to extract the shared cache.

https://theapplewiki.com/wiki/Dev:Dyld_shared_cache

[Lazerbeak12345]

You'll need to use a tool to extract the shared cache.

I managed to extract the framework that I needed, but can't get darling-stub-gen to use the extracted framework. (I'm following this guide)

I tried this:

darling-stub-gen $HOME/Documents/extracted/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices CoreServices

which gave me

Failed to recognize Mach-O location

I looked at the code for tools/darling-stub-gen:

darling/tools/darling-stub-gen

Lines 11 to 15 in 83c14dd

	# Constants
	library_prefix = "/usr/lib/"
	iossupport_system_prefix = "/System/iOSSupport"
	framework_prefix = "/System/Library/Frameworks/"
	private_framework_prefix = "/System/Library/PrivateFrameworks/"

darling/tools/darling-stub-gen

Lines 87 to 113 in 83c14dd

	full_path = sys.argv[1]
	output_dir = sys.argv[2]
	validate_path = full_path
	try:
	os.makedirs(output_dir)
	except FileExistsError:
	pass
	if full_path.startswith(iossupport_system_prefix):
	iossupport_system = True
	validate_path = full_path[len(iossupport_system_prefix):]
	if validate_path.endswith(".dylib"):
	library = True
	target_name = extract_library_name(validate_path)
	elif len(validate_path) > len(framework_prefix) and validate_path[:len(framework_prefix)] == framework_prefix:
	framework = True
	target_name = extract_framework_name(validate_path)
	elif len(validate_path) > len(private_framework_prefix) and validate_path[
	:len(private_framework_prefix)] == private_framework_prefix:
	private_framework = True
	target_name = extract_framework_name(validate_path)
	else:
	print("Failed to recognize Mach-O location")
	target_name = None
	exit(1)

And it looks like the issue is that the framework must be in the correct (absolute) installation path, but when I run

mkdir -p /System/Library/Frameworks/CoreServices.framework/Versions/A/
sudo mv binaries/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices

I get

mv: fastcopy: open() failed (to): /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices: Read-only file system

(see "About System Integrity Protection on your Mac")

If this doesn't work, perhaps I could start a VM inside my mac with an older version of macos? I just want to get the latest symbols since I'm doing it anyway.

EDIT: I can just disable SIP. I daily drive linux - I know what I'm doing. I don't need the guardrail....

[CuriousTommy]

Okay, let's take a step back here...

• darling-stub-gen should only be used for a framework/library that does not already exist in Darling. CoreServices already exists in Darling.
  • Also, there are other major issues with the current darling-stub-gen tool that makes it impossible to use on newer versions of macOS. I was working on a rewrite for the tool, but I had to put it on hold to focus on other stuff.
• When you are dealing with a missing symbol, you should look for the symbol on Apple's developer website and add it to Darling's source code. Going off of the website, here is how the LSCopyAllHandlersForURLScheme function is suppose to look
• There's a time and place where you may need to disable SIP, this isn't one of those cases.