How to use GDB to find what function a memory address corresponds to

Question

I am using google\'s heap checker to track down a memory leak. It gives me a stack trace such as:

Leak of 21 bytes in 1 objects allocated from:                          


        

Answer 1

Assuming your binary has debug information g++ -g you may be able to use x/ to get the info, I know that works for vtables.

x/xw to print hex words of memory, and gdb will annotate the left side with information about what's at the address.