How to identify the correct libraries to be loaded for each game by using the log?

[Kilowog01]

I have been testing this emulator for more than a year and I still can not understand that TODO errors, the explanation of the FAQ (which is the same as sshadow) does not solve all the problems like:

U {PPU[0x1000000] Thread (main_thread) [0x004dd9d4]} HLE TODO: Unimplemented syscall sys_spu_thread_group_log -> CELL_OK
U {PPU[0x1000000] Thread (main_thread) [0x00c75f64]} sys_spu TODO: Unsupported SPU Thread Group type (0x20)
U {PPU[0x1000000] Thread (main_thread) [0x00c7956c]} sys_prx TODO: sys_prx_register_library(library=*0xc7ccfc)
U {PPU[0x1000000] Thread (main_thread) [0x00c79454]} sysPrxForUser TODO: _sys_process_atexitspawn()
U {PPU[0x1000000] Thread (main_thread) [0x00c7899c]} cellGcmSys TODO: cellGcmSetZcull(index=0, offset=0x1870000, width=1280, height=704, cullStart=0x0, zFormat=0x2, aaFormat=0x0, zCullDir=0x0, zCullFormat=0x1, sFunc=0x2, sRef=0x1, sMask=0x1)
U {PPU[0x1000000] Thread (main_thread) [0x00c75b3c]} cellSpurs TODO: _cellSpursLFQueueInitialize(pTasksetOrSpurs=*0x30010081, pQueue=*0x200eda80, buffer=*0x200edb00, size=0x20, depth=0xc, direction=3)
U {PPU[0x1000000] Thread (main_thread) [0x00ed4690]} sys_rsx TODO: sys_rsx_device_map(addr=*0xd003f9d0, a2=0xd003f9c8, dev_id=0x8)
(among many others)

I believe that we should gather all the errors and their solutions in a topic since it is basically a trial and error. A small summary of what each LLE does would also be very good. It would help a lot considering that many of us do not have English as a native language and many terms have no translation so an explanation would make it easier. I think the only ones I have a minimum idea of what they can do are Libfont, freetype, jpgdec, pngdec, mp3dec etc.