You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: executable.rs
    path of file: ./repos/rustybox/libbb
    
    the code of the file until where you have to start completion: use crate::libbb::default_error_retval::xfunc_error_retval;
use crate::l
    
pub unsafe fn BB_EXECVP_or_die(mut argv: *mut *mut libc::c_char) -> ! {
  execvp(*argv.offset(0), argv as *const *mut libc::c_char);
  /* SUSv3-mandated exit codes */
  xfunc_error_retval = if *bb_errno == 2i32 { 127i32 } else { 126i32 } as u8;
  crate::libbb::perror_msg::bb_perror_msg_and_die(
    b"can\'t execute \'%s\'\x00" as *const u8 as *const libc::c_char,
    *argv.offset(0),
  );
}