.fini sections contain codes that are to be executed after the the main program is executed. To create an .fini section in an object file, use the assembler pseudo-ops shown in Example 3–2.
.section ".fini" .align 4 <instructions>
At link time, the .fini sections in a sequence of .o files are concatenated into a .fini section in the linker output file. The codes in the .fini section are executed after the main program is executed.
Because the whole .fini section is treated as a single function body, it is recommended that the only code added to these section be in the following form:.
The called routine should be located in another section. This will prevent conflicting register and stack usage within the .fini sections.