How to print the contents of a memory address using LLDB?

Question

I am using LLDB and wondering how to print the contents of a specific memory address, for example 0xb0987654.

Answer 1

To complement Michael's answer.

I tend to use:

memory read -s1 -fu -c10000 0xb0987654 --force 

That will print in the debugger.

1. -s for bytes grouping so use 1 for uint8 for example and 4 for int
2. -f for format. I inherently forget the right symbol. Just put the statement with -f and it will snap back at you and give you the list of all the options
3. -c is for count of bytes
4. if you are printing more than 1024 bytes, append with --force

Hope this helps.

Answer 2

Xcode has a very nice Memory Browser window, which will very nicely display the contents of memory addresses. It also lets you control byte grouping and number of bytes displayed, and move back or forward a memory page:

You can access it by pressing ⌘^⌥⇧M. After entering it, press enter to open the memory browser in the main editor.

or

Debug --> Debug Workflow --> View Memory

Notice the field on its bottom left corner where you can paste the memory address you want to inspect!

Documentation here: https://developer.apple.com/library/ios/recipes/xcode_help-debugger/articles/viewing_memory.html

Related answer here: How do I open the memory browser in Xcode 4?