Log is always empty despite running enableCompleteLogging()

[falhenaki]

I have a tweak that runs the following code

#include "InspCWrapper.m"

%ctor {
    setMaximumRelativeLoggingDepth(4);

    NSLog(@"Flag1");
    enableLogging();
    enableCompleteLogging();

    NSLog(@"Flag2");
}

I can confirm that this runs because both Flag1 and Flag2 run successfully. However, despite running enableCompleteLogging(). The log file located in
/var/mobile/Containers/Data/Application/<App-Hex>/Documents/InspectiveC
I always empty. I am happy to sure any additional information if you can confirm that this is not a mistake on my part/what information you need. I installed the deb from Cydia so I did not use fishook when compiling (is this the reason?).
Also, i attempted using the same function using cycript and got this

cy#  enableCompleteLogging(); 
throw new Error("insufficient number of arguments to ffi function")

[DavidGoldman]

re: the cycript issue I've run into that and haven't found a workaround.

Are you using Fishhook or Substrate here? I'd imagine that's probably the issue - the hook fails or doesn't get called. Since coolstar released odysseyra1n with libhooker, this should now be possible if you use that. let me push out an update

[falhenaki]

I'm using theos. The hook does get called because the flag logs execute. @DavidGoldman

[falhenaki]

I see your comment on Fishook in the readme. Can you please clarify more? is this needed? is fishook a tool that needs to be installed? I am unfamiliar.

[DavidGoldman]

The fishhhook hooking method has limitations - IIRC I think it can only show calls from the same image (e.g. your tweak, which isn't helpful). libhooker should work though, once I have time to try out odysseyra1n I'll push out an update.

[eclair4151]

I guess to add to this i am having the same issue. I use Substrate with CheckRa1n on an iPhone 7 Plus, iOS 13.5. I installed the Deb via Cydia. Didnt install anything fishhook specific.

i am a bit similarly a bit confused by the fishhook section. but i have the same result using USE_FISHHOOK=1 or not,

Files getting created but are all empty

[gr3atest]

Addressing the CYCRIPT issue:

The reason this happens is because of the way the FFI function was defined. Try using this:

enableCompleteLogging=(typedef void())(dlsym(handle,"InspectiveC_enableCompleteLogging"))

Instead of voidFunc.