LLDB.md

Here's a collection of handy lldb commands in the XCode debugger

Also, see the cheat sheet here: https://www.nesono.com/sites/default/files/lldb%20cheat%20sheet.pdf

Manually symbolicate an address:

image lookup --address {address}

Print callstack of the current thread:

thread backtrace

List all the threads:

thread list

Print the value of a variable:

p <variable>

Print array elements:

parray <count> <array variable>

UE4 example: 
parray 100 (float*)FloatValues.AllocatorInstance.Data

Watchpoint:

To set a watch point on memory address:
w s e -- <address>

To list all the watchpoint:
watchpoint list

To delete a watchpoint:
watchpoint delete <ID>