linker - "Local Linker Symbols"和 "Local Program Variables"有什么区别？

Question

我想知道“本地链接器符号”和“本地程序变量”之间的区别？

我正在读一本书，里面有这样的:

alt text http://img682.imageshack.us/img682/9816/symbols.jpg

每个是什么意思？有什么例子吗？

Answer 1

/* This function has global scope within this file (module). It is represented 
 * by a "local linker symbol", since the linker will need to resolve its address 
 * if it is referenced by any other function.
 */
static void some_function()
{
    /* These "local program variables" are of no interest to the linker 
     * since they are not visible outside the current function, so no other 
     * part of the program can possibly reference them.
     */
    int a, b, c;
}