LLDB

-g

Compilation flag to be able to use a debugger

lldb <executable name>

Open debugger

quit/q

Exits debugger

run

Runs program up to break point

b <line number>

sets a breakpoint at the specified line number

l

See the code around the location where your execution is currently paused

p <variable name>

prints value of variable

p &<variable name>

prints address of variable

watchpoint set variable <variable name>

stop execution and notify if the value of the variable changes

next

Executes one line of code without entering function calls

step

Executes one line of code and will enter function calls

kill

exit current program

-fno-stack-protector

Removes compiler protections against buffer overflow

x/<#>x<unit>. &<var>

Read # of units from the memory address starting at &var. (ex: x/4xb &name reads four bytes from variable name)

word

4-byte block of memory

objdump -d <executable>

Gives addresses of all machine code for the executable

bt/backtrace

go back a frame