This data structure is used by the Zig language code generation and therefore must be kept in sync with the compiler implementation.
__va_stk: *c_int__va_reg: *c_int__va_ndx: c_intpub const VaListXtensa = extern struct {
__va_stk: *c_int,
__va_reg: *c_int,
__va_ndx: c_int,
}