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CCS中,#pragma CODE_SECTION(boot,".bootload")语句不起作用

hang SU
Intellectual 280 points 


所用版本为CCS3.3.83；程序编译通过，但是load后（未运行）发现该语句没有起到任何效果。

CMD文件已经修改。
在做bootloader时用C语言（非汇编）直接写的程序，拿来用，结果发现#pragma CODE_SECTION(boot,".bootload")语句不起作用，未能够达到预期的分配效果。

所用版本为CCS3.3.83，程序编译能够通过，但是load后（未运行）发现该语句没有起到任何效果，boot()函数未被分配到boot函数代码段空间。

请各位专业人士指教问题原因
另：使用CCS3.3.38编译正常，代码段分配正常
  • 0
    TI__Guru**** 357097 points

    你到.map文件里看一下.bootload段有没有分配到指定的段？

  • 0 回复 Shine
    Intellectual 280 points

    .map文件中，boot_ram段占用量为零

  • 0 回复 hang SU
    TI__Guru**** 357097 points

    能把相关的code_section代码和cmd文件贴出来么？

  • 0 回复 Shine
    Intellectual 280 points

    换回低版本了，现在编译正常了，.map文件编译后被覆盖了，当时的存储空间占用就是上图的那个情况

  • 0 回复 hang SU
    TI__Guru**** 357097 points

    谢谢分享解决办法！

  • 0 回复 Shine
    Intellectual 280 points

    在另一台上装了一下，编译后map文件和boot文件如下

     

    以下为boot部分

    #define AWCCR		*(unsigned int *)0xf0000004
#define A1CR		*(unsigned int *)0xf0000010
#define PFUNC		*(unsigned int *)0x44000010
#define	PDIR		*(unsigned int *)0x44000014
#define PDOUT		*(unsigned int *)0x44000018
#define	FLASH		*(unsigned short *)(0x90000800)

/* 将boot函数放在.boot_prog section */ 
//#pragma CODE_SECTION(delay,".boot_load") 


#pragma CODE_SECTION(boot_prog,".boot_load") 
  
void boot_prog() 
{ 
    /* 由于boot函数运行时尚未初始化C语言运行环境的Stack， 
    因此所有变量都采用register */ 
  
    register unsigned int * boot_dst; 
    register unsigned int * boot_src; 
    register unsigned int   addr; 
    register unsigned int   boot_ep; 
    register unsigned int   boot_cnt; 
  	register char	  page;

  	PFUNC = 0x00000800;
	PDIR  = 0x00000800;
	PDOUT = 0x00000000;
	A1CR  = 0x00160449;
    /* 被载入的程序的boot table所在的地址 */ 
    boot_src = (unsigned int *)(0x90000400); 
    boot_ep = *boot_src++; /* 取得 Entry point */ 
    while(1)
    { 
        boot_cnt =(unsigned int) *boot_src++; 
		addr = (unsigned int)boot_src & 0x00FFFFFF;
		page = (unsigned char)addr>>13;
		asm("	nop 9");
		PDOUT = 0x00000800;
		asm("	nop 9");
		FLASH = page;
		asm("	nop 9");
		PDOUT = 0x00000000;
		asm("	nop 9");
        boot_dst = (unsigned int *)(*boot_src++); 
        if(boot_cnt == 0)
        { 
            (*(void (*)())boot_ep)(); /* 跳转到Entry point */ 
        } 
        while(boot_cnt>0)
        { 
            *boot_dst++ = *boot_src++; 
			addr = (unsigned int)boot_src & 0x00FFFFFF;
			page = addr>>13;
			asm("	nop 9");
			PDOUT = 0x00000800;
		    asm("	nop 9");
			FLASH = page;
			asm("	nop 9");
			PDOUT = 0x00000000;
		    asm("	nop 9");
            boot_cnt -= 4; 
        } 
    } 
}

    以下为编译后map文件

    ******************************************************************************
               TMS320C6x Linker PC v6.1.10                     
******************************************************************************
>> Linked Tue Jun 16 10:04:47 2015

OUTPUT FILE NAME:   <./Debug/led.out>
ENTRY POINT SYMBOL: "_c_int00"  address: 10001480


MEMORY CONFIGURATION

         name            origin    length      used     unused   attr    fill
----------------------  --------  ---------  --------  --------  ----  --------
  BOOT_RAM 10000000 00000400 00000000 00000400 RWIX   RAM                   10000400   00020000  00001b4c  0001e4b4  RWIX
  SDRAM                 80000000   08000000  00000000  08000000  RWIX
  FLASH_BOOT            90000000   00000400  00000000  00000400  RWIX
  FLASH_REST            90000400   0001fc00  00001240  0001e9c0  RWIX


SECTION ALLOCATION MAP

 output                                  attributes/
section   page    origin      length       input sections
--------  ----  ----------  ----------   ----------------
.pinit     0    10000400    00000000     UNINITIALIZED

.bss       0    10000400    00000000     UNINITIALIZED

.data      0    10000400    00000000     UNINITIALIZED

.stack     0    10001640    00000800     UNINITIALIZED
                  10001640    00000008     rts6700.lib : boot.obj (.stack)
                  10001648    000007f8     --HOLE--

.far       0    10001e40    000000a0     UNINITIALIZED
                  10001e40    0000008c     rts6700.lib : exit.obj (.far)
                  10001ecc    00000009     led.obj (.far)
                  10001ed5    00000003     --HOLE--
                  10001ed8    00000008     rts6700.lib : _lock.obj (.far)

.cinit     0    10001ee0    0000006c     
                  10001ee0    0000002c     rts6700.lib : exit.obj (.cinit)
                  10001f0c    00000004     --HOLE-- [fill = 0]
                  10001f10    0000001c                 : _lock.obj (.cinit)
                  10001f2c    00000004     --HOLE-- [fill = 0]
                  10001f30    00000011     led.obj (.cinit)
                  10001f41    00000007     --HOLE-- [fill = 0]
                  10001f48    00000004     (.pad.cinit) [fill = 0]

.text      0    90000400    00001240     RUN ADDR = 10000400
                  90000400    000006a0     dec672x.obj (.text)
                  90000aa0    00000360     csl_C6722.lib : csl_emifHwSetup.o (.text:csl_section:emif)
                  90000e00    00000240     rts6700.lib : memcpy62.obj (.text:_memcpy)
                  90001040    00000140                 : exit.obj (.text:_exit)
                  90001180    00000120                 : autoinit.obj (.text:__auto_init)
                  900012a0    00000100     csl_C6722.lib : csl_emifOpen.o (.text:csl_section:emif)
                  900013a0    000000e0     led.obj (.text)
                  90001480    00000080     rts6700.lib : boot.obj (.text:_c_int00)
                  90001500    00000060     csl_C6722.lib : csl_emifGetBaseAddress.o (.text:csl_section:emif)
                  90001560    00000040     rts6700.lib : args_main.obj (.text:__args_main)
                  900015a0    00000020                 : _lock.obj (.text:__nop)
                  900015c0    00000020                 : exit.obj (.text:_abort)
                  900015e0    00000020     csl_C6722.lib : csl_emifClose.o (.text:csl_section:emif)
                  90001600    00000020                   : csl_emifInit.o (.text:csl_section:emif)
                  90001620    00000020                   : csl_sysinit.o (.text:csl_section:sysInit)


GLOBAL SYMBOLS: SORTED ALPHABETICALLY BY Name 

address    name
--------   ----
10000400   $bss
10000400   .bss
10000400   .data
10000400   .text
100015c0   C$$EXIT
100015e0   _CSL_emifClose
10001500   _CSL_emifGetBaseAddress
10000aa0   _CSL_emifHwSetup
10001600   _CSL_emifInit
100012a0   _CSL_emifOpen
10001620   _CSL_sysInit
10000400   _DEC672X_cpld_rget
10000444   _DEC672X_cpld_rset
10000494   _DEC672X_wait
10000510   _FlashEnable
100007cc   _InitEmif
100005b0   _InitPll
10001ecc   _LedCode
00000800   __STACK_SIZE
ffffffff   ___TI_pprof_out_hndl
ffffffff   ___TI_prof_data_size
ffffffff   ___TI_prof_data_start
ffffffff   ___binit__
10000400   ___bss__
ffffffff   ___c_args__
10001ee0   ___cinit__
10000400   ___data__
10000400   ___edata__
10000400   ___end__
10001640   ___etext__
ffffffff   ___pinit__
10000400   ___text__
10001560   __args_main
10001180   __auto_init
10001ec4   __cleanup_ptr
10001ec8   __dtors_ptr
10001ed8   __lock
100015a0   __nop
10001640   __stack
10001edc   __unlock
100015c0   _abort
10001480   _c_int00
10001040   _exit
100013a0   _main
10000e00   _memcpy
ffffffff   binit
10001ee0   cinit
10000400   edata
10000400   end
10001640   etext
ffffffff   pinit


GLOBAL SYMBOLS: SORTED BY Symbol Address 

address    name
--------   ----
00000800   __STACK_SIZE
10000400   $bss
10000400   .bss
10000400   .data
10000400   .text
10000400   _DEC672X_cpld_rget
10000400   ___bss__
10000400   ___data__
10000400   ___edata__
10000400   ___end__
10000400   ___text__
10000400   edata
10000400   end
10000444   _DEC672X_cpld_rset
10000494   _DEC672X_wait
10000510   _FlashEnable
100005b0   _InitPll
100007cc   _InitEmif
10000aa0   _CSL_emifHwSetup
10000e00   _memcpy
10001040   _exit
10001180   __auto_init
100012a0   _CSL_emifOpen
100013a0   _main
10001480   _c_int00
10001500   _CSL_emifGetBaseAddress
10001560   __args_main
100015a0   __nop
100015c0   C$$EXIT
100015c0   _abort
100015e0   _CSL_emifClose
10001600   _CSL_emifInit
10001620   _CSL_sysInit
10001640   ___etext__
10001640   __stack
10001640   etext
10001ec4   __cleanup_ptr
10001ec8   __dtors_ptr
10001ecc   _LedCode
10001ed8   __lock
10001edc   __unlock
10001ee0   ___cinit__
10001ee0   cinit
ffffffff   ___TI_pprof_out_hndl
ffffffff   ___TI_prof_data_size
ffffffff   ___TI_prof_data_start
ffffffff   ___binit__
ffffffff   ___c_args__
ffffffff   ___pinit__
ffffffff   binit
ffffffff   pinit

[51 symbols]


     

  • 0 回复 Shine
    Intellectual 280 points 
    CMD文件代码：
    MEMORY
{
    BOOT_RAM :       o = 10000000h   l = 00000400h
    RAM:             o = 10000400h   l = 00020000h
    SDRAM:           o = 80000000h   l = 08000000h
    FLASH_BOOT:	     o = 90000000h   l = 00000400h
    FLASH_REST:	     o = 90000400h   l = 0001fc00h		
}


SECTIONS
{
    
    .boot_load  :   load = FLASH_BOOT,  run = BOOT_RAM
    .text		:   load = FLASH_REST,  run = RAM
    .stack       >       RAM
    .bss         >       RAM
    .cinit       >       RAM
    .pinit       >       RAM
    .cio         >       RAM 
    .const       >       RAM
    .data        >       RAM
    .switch      >       RAM 
    .sysmem      >       RAM
    .far         >       RAM

                              
}