I was trying to debug an issue with entry point not being found on iOS 18.0 simulator and device(iPhone 14 Pro) with no success since the Xcode console output just prints No entry point found. Checked '(null)'.
Later when I tried to use iOS 15.0 Simulator of iPhone 13 to see if it makes a difference, I could see more verbose messages from the loader trying to look for entry points and was able to pin point the root cause of the issue.
Nothing was changed in the project settings, env variables or anything except switching to iOS 15.0 simulator from iOS 18.0 simulator, so I don't think it is environment issue or project configuration issue.
The absence of detailed logging got me stuck on this issue for sometime.
The same issue (minimal logging) was observed on iOS 17.4 simulator as well but is not present on iOS 15.0.
iOS 18.0 Log:
No entry point found. Checked '(null)'
iOS 15.0 Log:
2024-10-13 13:31:17.970323+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Looking up debug dylib relative path
2024-10-13 13:31:17.970533+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Found debug dylib relative path string SideStore.debug.dylib
2024-10-13 13:31:17.970560+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Looking up debug dylib entry point name
2024-10-13 13:31:17.970583+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] No debug dylib entry point name defined.
2024-10-13 13:31:17.970615+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Looking up debug dylib install name
2024-10-13 13:31:17.970646+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Found debug dylib install name string @rpath/SideStore.debug.dylib
2024-10-13 13:31:17.970672+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Looking for Previews JIT link entry point.
2024-10-13 13:31:17.971776+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] No Previews JIT entry point found.
2024-10-13 13:31:17.971797+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Gave PreviewsInjection a chance to run and it returned, continuing with debug dylib.
2024-10-13 13:31:17.971816+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Looking for main entry point.
2024-10-13 13:31:17.971846+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Opening debug dylib with '@rpath/SideStore.debug.dylib'
2024-10-13 13:31:17.971935+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] Debug dylib handle: 0x205c2d2a0
2024-10-13 13:31:17.971969+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] No entry point found. Checking for alias.
2024-10-13 13:31:17.972368+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] No alias entry point found. Falling back to look up entry point name 'main'
2024-10-13 13:31:17.972926+0530 SideStore[62559:1632528] [PreviewsAgentExecutorLibrary] No entry point found. Checked '(null)'
Questions:
- What is the difference between iOS 15 and > iOS 17.4
- Is this a bug or expected behavior? if so how do I get back logging as in iOS 15.0 on iOS 18.0 (need detailed logging from the loader)
- which exact version of IOS was this change/bug got introduced?