如何使用MinGW创建固定大小的内存段，将数据放置在段内的固定位置

Question

I am using MinGW to create a win32 exe. I would like to create a memory segment with a fixed size, and after that place variable inside this segment at a fixed address relative to the start of the segment. Has anyone an idea of how to do this?

I was able to declare my own segment with:

  .codeflash BLOCK(__section_alignment__) :
  {
    __codeflash_start__ = . ;
    *(.codeflash)
    __codeflash_end__ = . ;    
  }

And place variables inside this segment using:

__attribute__((section(".codeflash"))) 

I am using the default linker script.

Thanks.

Answer 1

Lets say 0x100 bytes from the start of the segment

  .codeflash BLOCK(__section_alignment__) :
  {
    . += 0x100;
    __codeflash_start__ = . ;
    KEEP(*(.codeflash))
    KEEP(*(.codeflash*))
    __codeflash_end__ = . ;    
  }

Answer 2

我使用上面的建议来解决问题：将所有内容添加到结构中并将此结构放在部分中。