``Object file format''
shows that section headers are followed by the appropriate
number of bytes of text or data.
The raw data for each section begins on a 4-byte boundary in the file.
Link editor SECTIONS directives allow users to do the following, among other things:
If no SECTIONS directives are given, each input section appears in an output section of the same name. For example, if a number of object files, each with a .text section, are linked together, the output object file contains a single .text section made up of the combined input .text sections.