SceLibKernel, not to be confused with Kernel is a user library that implements wrappers to some common syscalls (for example, SceIoFilemgr), some user standard library functions (including C standard library), and other common features like heap management. This library is the functionally similar to libc.so.6 on Linux.
This is a user library and exists only in userland. The SELF can be found in
The latest version of dlmalloc is included in SceLibKernel. Most of the assert checks and security are included.