/* Linker script to configure memory regions
 *
 * Version:CodeSourcery Sourcery G++ Lite 2007q3-53
 * BugURL:https://support.codesourcery.com/GNUToolchain/
 *
 *  Copyright 2007 CodeSourcery.
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply. */

OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
ENTRY(_start)
SEARCH_DIR(.)
GROUP(-lgcc -lc -lcs3 -lcs3unhosted -lcs3micro)

MEMORY
{
  rom (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000   /* 512k */
  ram (rwx) : ORIGIN = 0x1FFF8000, LENGTH = 0x00010000   /*  32k */
}

/* These force the linker to search for particular symbols from
 * the start of the link process and thus ensure the user's
 * overrides are picked up
 */
EXTERN(__cs3_reset_cortex_m)
EXTERN(__cs3_interrupt_vector_cortex_m)
EXTERN(__cs3_start_c main __cs3_stack __cs3_stack_size __cs3_heap_end)

PROVIDE(__cs3_stack = __cs3_region_start_ram + __cs3_region_size_ram);
PROVIDE(__cs3_stack_size = __cs3_region_start_ram + __cs3_region_size_ram - _end);
PROVIDE(__cs3_heap_start = _end);
PROVIDE(__cs3_heap_end = __cs3_region_start_ram + __cs3_region_size_ram);

SECTIONS
{
    .text :
    {
        CREATE_OBJECT_SYMBOLS
        __cs3_region_start_rom = .;
        *(.cs3.region-head.rom)
        __cs3_interrupt_vector = __cs3_interrupt_vector_cortex_m;
        *(.cs3.interrupt_vector)
        /* Make sure we pulled in an interrupt vector.  */
        ASSERT (. != __cs3_interrupt_vector_cortex_m, "No interrupt vector");
        *(.rom)
        *(.rom.b)

        __cs3_reset = __cs3_reset_cortex_m;
        *(.cs3.reset)
        /* Make sure we pulled in some reset code.  */
        ASSERT (. != __cs3_reset, "No reset code");

        *(.text .text.* .gnu.linkonce.t.*)
        *(.plt)
        *(.gnu.warning)
        *(.glue_7t) *(.glue_7) *(.vfp11_veneer)

        *(.rodata .rodata.* .gnu.linkonce.r.*)

        *(.ARM.extab* .gnu.linkonce.armextab.*)
        *(.gcc_except_table)
        *(.eh_frame_hdr)
        *(.eh_frame)

        . = ALIGN(4);
        KEEP(*(.init))

        . = ALIGN(4);
        __preinit_array_start = .;
        KEEP (*(.preinit_array))
        __preinit_array_end = .;

        . = ALIGN(4);
        __init_array_start = .;
        KEEP (*(SORT(.init_array.*)))
        KEEP (*(.init_array))
        __init_array_end = .;

        . = ALIGN(0x4);
        KEEP (*crtbegin.o(.ctors))
        KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
        KEEP (*(SORT(.ctors.*)))
        KEEP (*crtend.o(.ctors))

        . = ALIGN(4);
        KEEP(*(.fini))

        . = ALIGN(4);
        __fini_array_start = .;
        KEEP (*(.fini_array))
        KEEP (*(SORT(.fini_array.*)))
        __fini_array_end = .;

        KEEP (*crtbegin.o(.dtors))
        KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
        KEEP (*(SORT(.dtors.*)))
        KEEP (*crtend.o(.dtors))

        . = ALIGN(4);
        __cs3_regions = .;
        LONG (0)
        LONG (__cs3_region_init_ram)
        LONG (__cs3_region_start_ram)
        LONG (__cs3_region_init_size_ram)
        LONG (__cs3_region_zero_size_ram)

        /* section information for finsh shell */
        . = ALIGN(4);
        __fsymtab_start = .;
        KEEP(*(FSymTab))
        __fsymtab_end = .;
        . = ALIGN(4);
        __vsymtab_start = .;
        KEEP(*(VSymTab))
        __vsymtab_end = .;
        . = ALIGN(4);

        . = ALIGN(4);
        __rt_init_start = .;
        KEEP(*(SORT(.rti_fn*)))
        __rt_init_end = .;
        . = ALIGN(4);

    }

    /* .ARM.exidx is sorted, so has to go in its own output section.  */
    __exidx_start = .;
    .ARM.exidx :
    {
      *(.ARM.exidx* .gnu.linkonce.armexidx.*)
    } >rom
    __exidx_end = .;
    .text.align :
    {
      . = ALIGN(8);
      _etext = .;
    } >rom
    __cs3_region_size_rom = LENGTH(rom);
    __cs3_region_num = 1;

    .data :
    {
        __cs3_region_start_ram = .;
        *(.cs3.region-head.ram)
        KEEP(*(.jcr))
        *(.got.plt) *(.got)
        *(.shdata)
        *(.data .data.* .gnu.linkonce.d.*)
        *(.ram)
        . = ALIGN (8);
        _edata = .;
    } >ram AT>rom

  .bss :
  {
    *(.shbss)
    *(.bss .bss.* .gnu.linkonce.b.*)
    *(COMMON)
    *(.ram.b)
    . = ALIGN (8);
    _end = .;
    __end = .;
  } >ram AT>rom

  .heap :
  {
    *(.heap)
  } >ram

  __bss_end = .;

  .stack (__cs3_stack - __cs3_stack_size) :
  {
    *(.stack)
  } >ram

  __cs3_region_init_ram = LOADADDR (.data);
  __cs3_region_init_size_ram = _edata - __cs3_region_start_ram;
  __cs3_region_zero_size_ram = _end - _edata;
  __cs3_region_size_ram = LENGTH(ram);
  __cs3_region_num = 1;

  .stab 0 (NOLOAD) : { *(.stab) }
  .stabstr 0 (NOLOAD) : { *(.stabstr) }
  /* DWARF debug sections.
   * Symbols in the DWARF debugging sections are relative to the beginning
   * of the section so we begin them at 0.  */
  /* DWARF 1 */
  .debug          0 : { *(.debug) }
  .line           0 : { *(.line) }
  /* GNU DWARF 1 extensions */
  .debug_srcinfo  0 : { *(.debug_srcinfo) }
  .debug_sfnames  0 : { *(.debug_sfnames) }
  /* DWARF 1.1 and DWARF 2 */
  .debug_aranges  0 : { *(.debug_aranges) }
  .debug_pubnames 0 : { *(.debug_pubnames) }
  /* DWARF 2 */
  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
  .debug_abbrev   0 : { *(.debug_abbrev) }
  .debug_line     0 : { *(.debug_line) }
  .debug_frame    0 : { *(.debug_frame) }
  .debug_str      0 : { *(.debug_str) }
  .debug_loc      0 : { *(.debug_loc) }
  .debug_macinfo  0 : { *(.debug_macinfo) }
  /* SGI/MIPS DWARF 2 extensions */
  .debug_weaknames 0 : { *(.debug_weaknames) }
  .debug_funcnames 0 : { *(.debug_funcnames) }
  .debug_typenames 0 : { *(.debug_typenames) }
  .debug_varnames  0 : { *(.debug_varnames) }

  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
  .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) }
  /DISCARD/ : { *(.note.GNU-stack) }
}