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6. Processes > Memory Layout of a Process

Memory Layout of a Process

The memory allocated to each process is composed of a number of parts, usually referred to as segments. These segments are as follows:

  • The text segment contains the machine-language instructions of the program run by the process. The text segment is made read-only so that a process doesn’t accidentally modify its own instructions via a bad pointer value. Since many processes may be running the same program, the text segment is made sharable so that a single copy of the program code can be mapped into the virtual address space of all of the processes.


  

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