Various sections in assembly

Data Section

• The data section is used for declaring initialized data and constants.

• This data do not change during the run time.

• Constants, file names, buffer size can be declared here

• static int i = 10;

• Syntax :- section.data

BSS Section

• It is used for declaring the variables

• Its also called uninitialized data section.

• static int i;

• Syntax :- section.bss

Text Section

• The text section is used for keeping the actual code.

• This section must begin with the declaration global _start, which tells the kernel where the program execution begins.

• Syntax :-

  section.text
     global _start
  _start:

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