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

Asked 2011-10-03T18:51:55.087

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:                                                                                                                                                               
    @ 0xf6088241                                                                                                                                                                                               
    @ 0xf60890d2                                                                                                                                                                                               
    @ 0xf6089246                                                                                                                                                                                               
    @ 0x8054781                                                                                                                                                                                                
    @ 0x8054862                                                                                                                                                                                                
    @ 0xf684ee76                                                                                                                                                                                               
    @ 0xf684f343                                                                                                                                                                                               
    @ 0x804be4c                                                                                                                                                                                                
    @ 0x80544f



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

                        
                        
                            answered 2011-10-03T19:34:53.053
                            
                        
                        
                            
                                
                                
                            
                        
                        
                            
                            
                            
                                
                                
                            
                            
                        
                    
                
            
            
        

        
        
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