Linux Application Development-coredump

Linux application Development-core Dump a coredump
Core dump is also known as kernel dumps. When an exception occurs during the operation of the program, the Linux system
You can store the memory content in a core file when the program goes wrong, called the core Dump
Two reasons for the error in the resulting segment
1 Array out of bounds
2 Stack Overflow
3 Accessing NULL pointers
4 modifying read-only memory
Three Open Core dump
Linux turns off this feature by default
Open Ulimit-c umlimited
Close Ulimit-c
Four use
After opening, execute gdb./test.out core.****

Linux Application Development-coredump