How to find a variable if I have its address in memory?

Question

in my application, I get an exception: MyApp(38431,0xa004ffa0) malloc: *** error for object 0xa08be760: pointer being freed was not allocated

Is there any way for Xcode to show me where this pointer is? How can I find where the problem is?

I know that I can print the info line * [address] and it can show me where the line is. But now it does not work for me.

How can I get the number of rows or the name of the variable in which the exception is thrown?

Thanks in advance, Ilya

Answer 1

free() malloc(). . (gdb), "bt" "backtrace", .

Answer 2

gdb try

bt

, . , gdb + xcode , , .

Answer 3

a malloc_error, , .

, :

• MallocStackLogging, MallocStackLoggingNoCompact 1.
• Run the program, and as soon as it will print the string, use malloc_history from the shell to see the stack trace allocation: malloc_history <pid> <addr>.