This memory layout is organized in following fashion :- 1>Text or Code Segment :-Text segment contains machine code of the compiled program. Command line arguments like argc and argv, and environment variables are stored in this memory. Now add the initialized static variable and check the size. Let see few examples to understand the memory layout of the C program. [narendra@CentOS]$ gcc memory-layout.c -o memory-layout [narendra@CentOS]$ size memory-layout text data bss dec hex filename 960 248 8 1216 4c0 memory-layout. Uninitialized data starts at the end of data segment and contains all global variables and static variables that are initialized to zero or do not have explicit initialization in source code. You can also see that I am able to change the value so it has read and write permission. Now add the global uninitialized variable and check the size. Basically, the memory layout of C program contains five segments these are the stack segment, heap segment, BSS (block started by symbol), DS (Data Segment) and text segment. Uninitialized data segment is also known as bss(block started by symbol) segment. These are − Stack Segment; Heap Segment; Text Segment; Data segment; Now … In this article, we will see the memory layout of different C++ Object. For example : we can open multiple sessions of a single application because the binary of that application consists of instructions and these instructions are stored in text segment. When we compile a program a binary gets generated. The malloc function returns a pointer to the allocated memory of byte_size. You can see the size of the .bss has been increased. Each segment has own read, write and executable permission. Now that doubts are clear. Stack is of Last in First Out(LIFO) structure. It has read-write permission so the value of the variable of this segment can be changed at run time. Interview Questions On bitwise Operators C, Interview Questions On Memory Allocation C, Machine Learning, Data Science and Deep Learning, Statistics for Data Science, Data and Business Analysis, Questions about dynamic memory allocation. The static variables are used within function/ file as local static variables. When we runs a program, the executable image is loaded into RAM of in an organized manner. #include
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