Method and apparatus for preventing stack overflow in embedded system

A method of preventing a stack overflow comprising:

• determining whether a maximum stack usage of a main function of the thread image exceeds a capacity of a currently usable memory if loading a thread image is requested;
• and
• storing the maximum stack usage of the main function of the thread image and loading the thread image if it is determined that the maximum stack usage of the main function of the thread image does not exceed the capacity of the currently usable memory, according to a result of the determination.

An apparatus for preventing a stack overflow comprising:

• a stack usage storage to store maximum stack usages of functions provided from a kernel;
• and
• a processing module to process a requested operation on the basis of a maximum stack usage of at least one function for executing the requested operation from among the maximum stack usages of the functions and a size of a usable region in a stack for the requested operation.

An apparatus for preventing a stack overflow comprising:

• a stack usage storage to store maximum stack usages of main functions of predetermined threads;
• and
• a task module, if a stack allocated to a thread that requested to be created already exists, to create the thread on the basis of a maximum stack usage of a main function of the thread from among the stored maximum stack usages and a size of the allocated stack, and if the stack allocated to the thread does not exist, allocate a stack to the thread on the basis of the maximum stack usage of the main function of the thread from among the stored maximum stack usages and a capacity of a currently usable memory, and to create the thread.