1、ldscr ipt，用于程序连接过程中指导程序段组织情况

2、程序段：

只读段（可位于ROM和RAM中）：text、rodata

读写段（必须位于RAM中）：data、 bss

-1, ldscr ipt, used to connect the process of guiding the organization of the procedures in paragraph 2, the procedure above: read-only paragraph (ROM and RAM can be located in): text, rodata read paragraph (must be in the RAM in): data, bss