PS4 Userland Printf Driver with Usermode Printf to Klog recently added by @zecoxao to the latest HEN for PS2 / PSP emulator classics debugging, and following PRXtoSPRX this weekend PlayStation 4 developer @cfwprophet of CFWPrpht.Tumblr.com made available a GODMODE.prx driver module for scene devs to make use of in PS4 homebrew as requested.
Download: GODMODE.rar / godmode-master.zip / GIT
To quote from the ReadMe.md file: GODMODE prx for PS4
Since requested here it is: Used eversions trick of fw version resolving on kernel level to build a dynamically resolved Prison break and most important patches prx. Currently FW's 4.55, 5.01 and 5.05 are supported.
Run "Kamehameha();" once at startup of your userland app code.
Credits to eversion for his fw version resolving trick.
Special thx to XDPX for pointing my nose onto.
Greets to all Geeks.