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Feb 23rd, 2011
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  1. #include "config.h"
  2.  
  3. ENTRY(start)
  4. OUTPUT_FORMAT(elf32-littlearm)
  5. OUTPUT_ARCH(arm)
  6. STARTUP(target/arm/imx233/crt0.o)
  7.  
  8. #define IRAMORIG  0
  9. #define IRAMSIZE 32K
  10. #define DRAMORIG 0x40000000
  11. #define DRAMSIZE (MEMORYSIZE * 0x100000)
  12. #define STACKSIZE 2k
  13.  
  14. MEMORY
  15. {
  16.     DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
  17.     IRAM0 : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
  18. }
  19.  
  20. SECTIONS
  21. {
  22.     /* We will put Rockbox bootloader at the last 1MByte of the  SDRAM. */
  23.  
  24.     /* Example of a section:
  25.     * .section VMA(Virtual Memory Address) : LMA(Load Memory Address).
  26.     * VMA and LMA addresses can be verified by doing:
  27.     * "arm-elf-objdump -h bootloader.elf". */
  28.  
  29.     .text 0 : AT (DRAMORIG + DRAMSIZE - 1M)
  30.     {
  31.         *(.glue_7)
  32.         *(.glue_7t)
  33.         *(.text)
  34.         *(.text*)
  35.         *(.icode)
  36.         *(.icode*)
  37.         *(.rodata)
  38.         *(.rodata*)
  39.         . = ALIGN(4);
  40.         end_text = .;
  41.     }
  42.  
  43.     /* Initialized variables are placed on SDRAM, right after .text section. */
  44.     /* Data section: VMA is the same as the LMA, right after the end of .text */
  45.     .data . :
  46.     {
  47.         *(.data)
  48.         *(.data*)
  49.         . = ALIGN(4);
  50.         end_data = .;
  51.     }
  52.  
  53.     /* Uninitialized variables are placed at SDRAM, right after .text section. */
  54.     .bss (NOLOAD) :
  55.     {
  56.         bss = .;
  57.         *(.bss) /* Bss section contains all uninitialized data generated by the compiler. */
  58.         *(.bss*)
  59.         *(COMMON)
  60.         . = ALIGN(4);
  61.         end_bss = .;
  62.     }
  63.  
  64.     /* Stack is placed at SDRAM, right after .bss section. */
  65.     .stack . :
  66.     {
  67.        *(.stack)
  68.        stackbegin = .;
  69.        . += STACKSIZE;
  70.        end_stack = .;
  71.     }
  72. }
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