android native - How my native library path not listed in GetMemoryRegions result when I debug using lldb?

Question

I want to debug my native library libtestnative.so at the low level using lldb. In order to do that I have to know what is the base address of the target shared object. I wrote a lldb script leveraging the python framework to dump all memory regions but in the result list there was no entry of it though the code still executed normally.

I tried 2 things:

1. put a endless loop to keep the shared object "alive" in the process memory when I interrupted the process in lldb client:

jobject myNativeMethod3(JNIEnv *env, jobject thiz, jobject arrayObj) {
    LOGI("Reading string array");

    struct timespec ts = {2, 0}; // 2 second sleep
    while(true){
        LOGI("waiting for lldb");
        nanosleep(&ts, nullptr);
    }
}

2. dump every entry to a file:

def get_memory_regions(debugger, command, result, internal_dict):
    target = debugger.GetSelectedTarget()
    process = target.GetProcess()
    if not process:
        print("No process available.")
        return

    region_list = process.GetMemoryRegions()
    print(f"Total regions: {region_list.GetSize()}")
    with open('regions.txt', 'w') as f:
        for i in range(region_list.GetSize()):
            region_info = lldb.SBMemoryRegionInfo()
            if region_list.GetMemoryRegionAtIndex(i, region_info):
                name = region_info.GetName()
                f.write(f"{name}\n")

but the target shared object name not appeared in the list.

I could see there was an entry named /data/app/~~v4slxMbRQy4YqeFeTO3Rig==/com.example.testnative-Lkf80ctXP4dWS-iV201AwQ==/base.apk appeared, but I also expect a lib named libtestnative.so in the list.