Function app_stack_region 

pub fn app_stack_region(
    args: &[String],
    envs: &[String],
    auxv: &[AuxEntry],
    sp: usize,
) -> Vec<u8>

Generate initial stack frame for user stack

Arguments

• args - Arguments of the application
• envs - Environment variables of the application
• auxv - Auxiliary vectors of the application
• sp - Highest address of the stack

Return

• Vec<u8> - Initial stack frame of the application

Notes

The detailed format is described in https://articles.manugarg.com/aboutelfauxiliaryvectors.html