链接脚本使用----- 将二进制文件作为一个段

   1: .section .piggydata,#alloc

   2: .globl    input_data

   3: t_data:

   4: .incbin    "arch/arm/boot/compressed/piggy.gzip"

   5: .globl    input_data_end

   6: t_data_end:

   1: #include <stdio.h>

   2:  

   3: extern unsigned int __peng_start;

   4: extern unsigned int __peng_end;

   5:  

   6: char *p = (char *)(&__peng_start);

   7: //我们要获取__peng_start的存放地址，作为字符串首地址，或者数组名来使用。

   8: int main(int argc, const char *argv[])

   9: {

  10:     int i;

  11:     unsigned int len = 0;

  12:  

  13:     len = (unsigned int)(&__peng_end) - (unsigned int)(&__peng_start);

  14:  

  15:     printf("len = %x\n", len);

  16:  

  17:     printf("%p\n", &__peng_start);

  18:     printf("%p\n", &__peng_end);

  19:  

  20:     for(i=0; i<len; i++)

  21:     {

  22:         if (i % 16 == 0)

  23:         {

  24:             printf("\n");

  25:         }

  26:         printf("%3x ", *p++&0xff);

  27:     }

  28:  

  29:  

  30:     return 0;

  31: }

   1: OUTPUT_FORMAT("elf32-i386", "elf32-i386",

   2:           "elf32-i386")

   3: OUTPUT_ARCH(i386)

   4: ENTRY(_start)

   5: SEARCH_DIR("/usr/i486-linux-gnu/lib32"); SEARCH_DIR("/usr/local/lib32"); SEARCH_DIR("/lib32"); SEARCH_DIR("/usr/lib32"); SEARCH_DIR("/usr/i486-linux-gnu/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");

   6: SECTIONS

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  19:   .peng :

  20:   {

  21:      . = ALIGN(4);

  22:      __peng_start = .;

  23:      *(.peng);

  24:      __peng_end = .;

  25:      . = ALIGN(4);

  26:   }

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 110:        linker won‘t look for a file to match a

 111:        wildcard.  The wildcard also means that it

 112:        doesn‘t matter which directory crtbegin.o

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 119:        end of ctors marker and it must be last */

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