This commit removes the maps hiding, as it not only breaks behavior compatibility with Magisk Zygisk (original), but also can break some modules because of that. It doesn't provide any improved hiding in slightly better detections and makes the codebase more complex.
This commit improves how "ptrace_message" is cleaned by utilizing seccomp (Secure Computation Mode) to clear its value.
"ptrace_message" not being cleared is a Linux kernel vulnerability/bug that impacts all versions below 6.1, as the fix only came in 6.1, and because of that, we need to find ways to "0" it. This is the second fix for that, being the GKI2 fix the first: 70697be9a5
This commit improves the compatibility of SoInfo hiding code with more Android versions, like Android 16 QPR1 Beta 1 and newer versions, and also reduces complexity of the code.
This commit adds numerous improvements to the state of hidden'ility of ReZygisk, and also for compatibility. Recommended to check #111 for more information.
Two counters for module loading and unloading are introduced in the commit a2e83ab348. To remove linker traces of libzygisk.so and Zygisk modules, we should reset them properly.
1. fix typo vsdo -> vdso and allow this symbol to be not found, which is the case for the 32bit linkers on some devices
2. use soinfo_free to fully remove the soinfo record of libzygisk.so
3. set `soinfo.size = 0` to avoid the library being unmapped while removing its soinfo record
4. add more debug logs for troubleshooting
Relying on dlclose to unload libzygisk.so will block us to clean its trace in the solist.
This commit allows us to unmap libzygisk.so without using dlclose.
To call munmap, we use the function pthread_attr_setstacksize instead of pthread_attr_destroy, so that tail-call can still be applied here since it has the same signature as munmap.
