This repo will hopefully eventually hold a collection of useful gdb-python scripts for debug.
If you don't know much about GDBs python scripting API check out this writeup!
PS: I tried to search the interwebs first for a pre-existing implementation for commands added but could not find anything. If you know of a repo that provides similar functionality for any of the command you see, do let me know!
newlib heapdump - Pretty prints the blocks in a newlib libc heap