sdram.dld

motorola自己开发的针对coldfire 5272的Dbug bootloader程序

/*
 * File:		sdram.dld
 * Purpose:		Linker file for the M5272C3 Rev 2.0 and earlier
 *
 * Notes:		dBUG running in SDRAM
 *
 */

MEMORY
{
	sdram		: org = 0x00000000, len = 0x00400000
	vector_ram	: org = 0x00000000, len = 0x00000400
	user_space	: org = 0x00020000, len = 0x00FE0000
	mbar		: org = 0x10000000, len = 0x00001800
	sram		: org = 0x20000000, len = 0x00001000
	ext_sram	: org = 0x30000000, len = 0x00080000
	flash	 	: org = 0xFFE00000, len = 0x00200000	
	vector_rom	: org = 0xFFE00000, len = 0x00004000
	params		: org = 0xFFE04000, len = 0x00002000
	dbug		: org = 0xFFE08000, len = 0x00038000
}

SECTIONS
{
	.vectors :
	{
		vectors.o (.text)
	} > sdram

	.text :
	{
		*(.text)
	} > sdram

	GROUP:
	{
		.data :
		{
			___DATA_ROM = .;
			___DATA_RAM = .;
			*(.data)
			*(.code_relocation)
			___DATA_END = .;
		}

		.bss (BSS) :
		{
			___BSS_START = .;
			*(.bss)
			*[COMMON]
			___BSS_END = .;
			___HEAP_START	= .;
			.				= . + 4;
			___HEAP_END		= .;
			___PARAMS_START	= .;
			.				= . + 0x48;
			___PARAMS_END	= .;
			___SP_END		= .;
			.				= . + 0xC00;
			___SP_INIT		= .;
		}
	} > sdram
}

___MBAR				= ADDR(mbar);
___VECTOR_RAM		= ADDR(vector_ram);
___SDRAM			= ADDR(sdram);
___SDRAM_SIZE		= SIZEOF(sdram);
___SRAM				= ADDR(sram);
___SRAM_SIZE		= SIZEOF(sram);
___EXT_SRAM			= ADDR(ext_sram);
___EXT_SRAM_SIZE	= SIZEOF(ext_sram);
___FLASH			= ADDR(flash);
___FLASH_SIZE		= SIZEOF(flash);
___PARAMS			= ADDR(params);
___PARAMS_SIZE		= ___PARAMS_END - ___PARAMS_START;
___DBUG_ADDRESS		= ADDR(vector_rom);
___DBUG_CODE_START	= ADDR(dbug);
___DBUG_CODE_SIZE	= SIZEOF(dbug);
___DBUG_SIZE		= 0x00040000;
___VECTORS_ROM		= ADDR(vector_rom);
___VECTORS_RAM		= ADDR(vector_ram);
___VECTORS_SIZE		= SIZEOF(.vectors);
___USER_SPACE		= ADDR(user_space);
___USER_SPACE_SIZE	= SIZEOF(user_space);

/* Is this linked to run in ROM? */
___Running_in_ROM	= 0x0;