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      1 /*	$NetBSD: ldscript,v 1.2 2020/02/12 18:11:30 thorpej Exp $	*/
      2 
      3 OUTPUT_FORMAT("elf32-bigarm", "elf32-bigarm",
      4 	      "elf32-littlearm")
      5 OUTPUT_ARCH(arm)
      6 ENTRY(SDRAM)
      7 MEMORY
      8 {
      9   /* RedBoot will copy the gzboot+compressed kernel image from the
     10      FIS partition starting @ 0x50060000 to the SDRAM location starting
     11      at 0x01d00000.  gzboot will uncompress the kernel to 0x00200000.
     12      NOTE: Even though there is room for 3M of gzboot+compressed kernel,
     13      there is only room for 1M of this in the FIS partition.  So we declare
     14      that same limit for "sdram" to simplify the linker script.  */
     15   flash : o = 0x50060000, l = 1M
     16   sdram : o = 0x01d00000, l = 1M	/* kernel loads at 0x00200000 */
     17 }
     18 SECTIONS
     19 {
     20   SDRAM = 0x01d00000;
     21 
     22   /DISCARD/ : { *(.ARM.attributes*) *(.ARM.exidx) }
     23 
     24   /* Read-only sections, merged into text segment: */
     25   __text_store = SDRAM;
     26   .text      :
     27   AT (SDRAM)
     28   {
     29     *(.text)
     30     *(.text.*)
     31     *(.stub)
     32     *(.glue_7t) *(.glue_7)
     33     *(.rodata) *(.rodata.*)
     34   } > sdram =0
     35   PROVIDE (__etext = .);
     36   PROVIDE (_etext = .);
     37   PROVIDE (etext = .);
     38   __data_store = SDRAM + SIZEOF(.text);
     39   .data    :
     40   AT (LOADADDR(.text) + SIZEOF(.text))
     41   {
     42     __data_start = . ;
     43     *(.data)
     44     *(.data.*)
     45   } > sdram
     46   .sdata     :
     47   AT (LOADADDR(.data) + SIZEOF(.data))
     48   {
     49     *(.sdata)
     50     *(.sdata.*)
     51     . = ALIGN(32 / 8);
     52   } > sdram
     53   _edata = .;
     54   PROVIDE (edata = .);
     55   __bss_start = .;
     56   __bss_start__ = .;
     57   .sbss      :
     58   AT (LOADADDR(.sdata) + SIZEOF(.sdata))
     59   {
     60     PROVIDE (__sbss_start = .);
     61     PROVIDE (___sbss_start = .);
     62     *(.dynsbss)
     63     *(.sbss)
     64     *(.sbss.*)
     65     *(.scommon)
     66     PROVIDE (__sbss_end = .);
     67     PROVIDE (___sbss_end = .);
     68   } > sdram
     69   .bss       :
     70   AT (LOADADDR(.sbss) + SIZEOF(.sbss))
     71   {
     72    *(.dynbss)
     73    *(.bss)
     74    *(.bss.*)
     75    *(COMMON)
     76    /* Align here to ensure that the .bss section occupies space up to
     77       _end.  Align after .bss to ensure correct alignment even if the
     78       .bss section disappears because there are no input sections.  */
     79    . = ALIGN(32 / 8);
     80   } > sdram
     81   . = ALIGN(32 / 8);
     82   _end = .;
     83   _bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
     84   PROVIDE (end = .);
     85   .image     :
     86   AT (LOADADDR(.bss) + SIZEOF(.bss))
     87   {
     88     *(.image)
     89   } > sdram
     90 }
     91