keil生成的文件怎么那么多,分别是什么,比如.opt .bak .plg

2025-02-06 21:39:03
推荐回答(2个)
回答1:

.plg:编译器编译结果
.hex和.bin:可执行文件
.map和.lst:链接文件
.o:目标文件
.crf、.lnp、.d和.axf:调试文件
.opt:保存工程配置信息
.bak:工程备份文件

回答2:

.map文件解析:
一、文件分析流程
1、第一部分:Section Cross References
主要是各个源文件生成的模块之间相互引用的关系。
stm32f10x.o(STACK) refers (Special) to stkheap2.o(.text) for __use_two_region_memory
比如上面这句话,stm32f10x.o是stm32f10x.s生成的目标文件模块,(STACK)是文件内定义的一个段,链接器把它视为一个Section,输入节。它引用了模块stkheap2.o输入节(.text)里面的一个全局符号__use_two_region_memory(可能是一个函数或变量)。这个(Special)不知道是什么含义。
剩下的基本都是这用的意思。
stm32f10x_vector.o(.text) refers to __main.o(!!!main) for __main
__main.o(!!!main) refers to kernel.o(.text) for __rt_entry
kernel.o(.text) refers to usertask.o(.text) for main
上面这几个对于程序意义比较重大用户在启动代码中调用了__main.o模块中的__main函数,__main又调用了kernel.o中的__rt_entry函数,最后kernel.o又调用了用户定义的main主函数。
2、第二部分:Removing Unused input sections from the image.
就是将库中没有用到的函数从可执行映像中删除掉,减小程序的体积。
Removing os_mbox.o(.text), (1094 bytes).
Removing os_mutex.o(.text), (1744 bytes).
Removing os_sem.o(.text), (1016 bytes).
3、第三部分:Image Symbol Table
Local Symbols
符号表里的局部符号。
../../angel/boardlib.s 0x00000000 Number 0 boardinit1.o ABSOLUTE
../../angel/handlers.s 0x00000000 Number 0 __scatter_copy.o ABSOLUTE
../../angel/kernel.s 0x00000000 Number 0 kernel.o ABSOLUTE
../../angel/rt.s 0x00000000 Number 0 rt_raise.o ABSOLUTE
../../angel/scatter.s 0x00000000 Number 0 __scatter.o ABSOLUTE
../../angel/startup.s 0x00000000 Number 0 __main.o ABSOLUTE
../../angel/sys.s 0x00000000 Number 0 sys_exit.o ABSOLUTE
../../angel/sysapp.c 0x00000000 Number 0 sys_wrch.o ABSOLUTE
../../armsys.c 0x00000000 Number 0 _get_argv.o ABSOLUTE
../../division_7m.s 0x00000000 Number 0 rtudiv10.o ABSOLUTE
../../fpinit.s 0x00000000 Number 0 fpinit.o ABSOLUTE
../../heapalloc.c 0x00000000 Number 0 hrguard.o ABSOLUTE
../../printf.c 0x00000000 Number 0 _printf_outstr_char.o ABSOLUTE
../../signal.c 0x00000000 Number 0 defsig_exit.o ABSOLUTE
../../stdlib.c 0x00000000 Number 0 exit.o ABSOLUTE
../../stkheap.s 0x00000000 Number 0 heapext.o ABSOLUTE
以上是一些系统内部的局部符号,还有用户的一些局部符号
4、第四部分:Global Symbols
全局符号
_terminate_user_alloc - Undefined Weak Reference
_terminateio - Undefined Weak Reference
__Vectors 0x08000000 Data 4 stm32f10x_vector.o(RESET)
__main 0x08000131 Thumb Code 8 __main.o(!!!main)
__scatterload 0x08000139 Thumb Code 0 __scatter.o(!!!scatter)
__scatterload_rt2 0x08000139 Thumb Code 44 __scatter.o(!!!scatter)
这些是一些系统的全局符号
Font8x16 0x08001a82 Data 2048 tft018.o(.constdata)
Font8x8 0x08002282 Data 2056 tft018.o(.constdata)
codeGB_16 0x08002a8a Data 770 tft018.o(.constdata)
Region$$Table$$Base 0x08002dc0 Number 0 anon$$obj.o(Region$$Table)
Region$$Table$$Limit 0x08002de0 Number 0 anon$$obj.o(Region$$Table)
后面这两个符号我认为很重要,在运行库代码将可执行映像从加载视图转变为可执行视图的过程中起到了关键作用。Number是指它并不占据程序空间,而只是一个具有一定数值的符号,类似于程序中用define和EQU定义的。
经过这么一分析,现在我对于程序的加载映像和执行映像有了较深的理解:程序的RO_Code加上RO_Data总共是0x2dc0这么大,地址范围0x0800,0000到0x8000,2dbf。然后在0x0800,2dc0-2dcf共16个字节放了RW加载映像地址(0x0800,2de0)、执行映像地址(0x2000,0000)、RW长度(0x20)和将该段数据从加载映像复制到执行映像的函数地址。在0x0800,2dd0-2ddf共16个字节放了ZI加载映像地址(0x0800,2e00)、执行映像地址(0x2000,0020)、ZI长度(0x480)和建立ZI、HEAP和STACK执行映像的函数地址。
在上面的第二个阶段,将ZI清零阶段,程序的ZI长度实际上只有0x20,而库代码留出了0x60的长度。因此数据区的顶端为0x2000,00a0-1。接下来从0x2000,00a0开始为堆的起始地址,堆长度加上程序栈长度为0x2000,04a0,这就是堆栈顶端,也是__initial_SP的初始值。
程序进入_rt_entry后,还要对heapstack进行处理,但我没有看到有什么用的变化。从中对库留出的ZI数据区进行了一些处理,我暂时也看不明白。好了,调试就到这里,回到map文件分析的正途。
5、第五部分:
Memory Map of the image
//映像的内存分布
Image Entry point : 0x080000ed
//程序的入口点:这里应该是RESET_Handler的地址
Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00002e00, Max: 0x00020000, ABSOLUTE)
//程序的加载映像地址和长度,2e00=2dc0(代码和常数)+0x20(Region Table是RW的加载和执行地址、ZI与HEAPSTACK的执行地址)+0x20(已经初始化的数据)。
Execution Region ER_IROM1(Base: 0x08000000, Size: 0x00002de0, Max: 0x00020000, ABSOLUTE) //这段RO区域的加载映像和执行映像一致。
Base Addr Size Type Attr Idx E Section Name Object
0x08000000 0x000000ec Data RO 3 RESET stm32f10x.o
0x080000ec 0x00000008 Code RO 191 * !!!main __main.o(c_w.l)
Execution Region RW_IRAM1 (Base: 0x20000000, Size: 0x000004a0, Max: 0x00005000, ABSOLUTE) //RW数据区 ZI数据区 Heap和Stack数据区。
Base Addr Size Type Attr Idx E Section Name Object
0x20000000 0x00000001 Data RW 100 .data tft018.o
x20000040 0x00000060 Zero RW 212 .bss libspace.o(c_w.l)
0x200000a0 0x00000000 Zero RW 2 HEAP stm32f10x.o
0x200000a0 0x00000400 Zero RW 1 STACK stm32f10x.o
6、第六部分:Image component sizes
这是指出各个模块的输入节的大小
Code (inc. data) RO Data RW Data ZI Data Debug Object Name
972 58 0 10 32 2416 can.o
824 168 0 15 0 1791 candemo.o
928 88 0 0 0 4529 stm32_init.o
52 18 236 0 1024 2700 stm32f10x.o
1836 32 4874 1 0 8076 tft018.o
最后给出总长度:这个11744应该=0x2dc0,1184应该0x4a0。11776应该是=0x2e00。
Total RO Size (Code + RO Data) 11744 ( 11.47kB)
Total RW Size (RW Data + ZI Data) 1184 ( 1.16kB)
Total ROM Size (Code + RO Data + RW Data) 11776 ( 11.50kB)

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