2022.08.13
I want delete all padding after the end of every function.
https://stackoverflow.com/questions/4486301/
The padding is created by the assembler, not by gcc. ... If you use the -Os optimization level, it's off by default ...
After reading man as,
I only find -n might be useful,
e.g. gcc -Xassembler -n -S -o helloworld.S helloworld.c
After this I realize I can eliminate alignment fill in pre-compiled lib.
Maybe ELF editor is a better choice.