MK20D7.ld

/* Entry Point */
ENTRY(__thumb_startup)

/* Highest address of the user mode stack */
_estack = 0x20000000;    /* end of m_data */
__SP_INIT = _estack;

/* Generate a link error if heap and stack don't fit into RAM */
__heap_size = 0x00;                    /* required amount of heap  */
__stack_size = 0x0400;                 /* required amount of stack */


MEMORY {
  m_interrupts (RX) : ORIGIN = 0x00000000, LENGTH = 0x000001BC
  m_text      (RX) : ORIGIN = 0x00000410, LENGTH = 0x0003FBF0
  m_data      (RW) : ORIGIN = 0x1FFF8000, LENGTH = 0x00008000
  m_data_20000000 (RW) : ORIGIN = 0x20000000, LENGTH = 0x00008000
  m_cfmprotrom  (RX) : ORIGIN = 0x00000400, LENGTH = 0x00000010
}

/* Define output sections */
SECTIONS
{
  /* The startup code goes first into INTERNAL_FLASH */
  .interrupts :
  {
    __vector_table = .;
    . = ALIGN(4);
    KEEP(*(.vectortable)) /* Startup code */
    . = ALIGN(4);
  } > m_interrupts

  .cfmprotect :
  {
    . = ALIGN(4);
	KEEP(*(.cfmconfig))	/* Flash Configuration Field (FCF) */
	. = ALIGN(4);
  } > m_cfmprotrom

  /* The program code and other data goes into INTERNAL_FLASH */
  .text :
  {
    . = ALIGN(4);
    *(.text)           /* .text sections (code) */
    *(.text*)          /* .text* sections (code) */
    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
    *(.glue_7)         /* glue arm to thumb code */
    *(.glue_7t)        /* glue thumb to arm code */
    *(.eh_frame)

    KEEP (*(.init))
    KEEP (*(.fini))

    . = ALIGN(4);

    _etext = .;        /* define a global symbols at end of code */
  } > m_text

   .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } > m_text
    .ARM : {
    __exidx_start = .;
      *(.ARM.exidx*)
      __exidx_end = .;
  } > m_text

 .ctors :
  {
    __CTOR_LIST__ = .;
    /* gcc uses crtbegin.o to find the start of
       the constructors, so we make sure it is
       first.  Because this is a wildcard, it
       doesn't matter if the user does not
       actually link against crtbegin.o; the
       linker won't look for a file to match a
       wildcard.  The wildcard also means that it
       doesn't matter which directory crtbegin.o
       is in.  */
    KEEP (*crtbegin.o(.ctors))
    /* We don't want to include the .ctor section from
       from the crtend.o file until after the sorted ctors.
       The .ctor section from the crtend file contains the
       end of ctors marker and it must be last */
    KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
    KEEP (*(SORT(.ctors.*)))
    KEEP (*(.ctors))
    __CTOR_END__ = .;
  } > m_text

  .dtors :
  {
    __DTOR_LIST__ = .;
    KEEP (*crtbegin.o(.dtors))
    KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
    KEEP (*(SORT(.dtors.*)))
    KEEP (*(.dtors))
    __DTOR_END__ = .;
  } > m_text

  .preinit_array     :
  {
    PROVIDE_HIDDEN (__preinit_array_start = .);
    KEEP (*(.preinit_array*))
    PROVIDE_HIDDEN (__preinit_array_end = .);
  } > m_text
  .init_array :
  {
    PROVIDE_HIDDEN (__init_array_start = .);
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array*))
    PROVIDE_HIDDEN (__init_array_end = .);
  } > m_text
  .fini_array :
  {
    PROVIDE_HIDDEN (__fini_array_start = .);
    KEEP (*(SORT(.fini_array.*)))
    KEEP (*(.fini_array*))
    PROVIDE_HIDDEN (__fini_array_end = .);

	___ROM_AT = .;
  } > m_text

  /* Initialized data sections goes into RAM, load LMA copy after code */
  .data : AT(___ROM_AT)
  {
    . = ALIGN(4);
    _sdata = .;        /* create a global symbol at data start */
    *(.data)           /* .data sections */
    *(.data*)          /* .data* sections */

    . = ALIGN(4);

    _edata = .;        /* define a global symbol at data end */
  } > m_data

  ___data_size = _edata - _sdata;

  ___m_data_20000000_ROMStart = ___ROM_AT + SIZEOF(.data);
  .m_data_20000000 : AT(___m_data_20000000_ROMStart)
  {
     . = ALIGN(4);
     ___m_data_20000000_RAMStart = .;
     *(.m_data_20000000) /* This is an User defined section */
     ___m_data_20000000_RAMEnd = .;
     . = ALIGN(4);
  } > m_data_20000000
  ___m_data_20000000_ROMSize = ___m_data_20000000_RAMEnd - ___m_data_20000000_RAMStart;

  /* Uninitialized data section */
  . = ALIGN(4);
  .bss :
  {
    /* This is used by the startup in order to initialize the .bss section */
    __START_BSS = .;
	  PROVIDE ( __bss_start__ = __START_BSS );

    *(.bss)
    *(.bss*)
    *(COMMON)

    . = ALIGN(4);
    __END_BSS = .;
 	  PROVIDE ( __bss_end__ = __END_BSS );
  } > m_data

  _romp_at = ___ROM_AT + SIZEOF(.data) +SIZEOF(.m_data_20000000);
  .romp : AT(_romp_at)
  {
    __S_romp = _romp_at;
    LONG(___ROM_AT);
    LONG(_sdata);
    LONG(___data_size);
    LONG(___m_data_20000000_ROMStart);
    LONG(___m_data_20000000_RAMStart);
    LONG(___m_data_20000000_ROMSize);
    LONG(0);
    LONG(0);
    LONG(0);
  } > m_data

  /* User_heap_stack section, used to check that there is enough RAM left */
  ._user_heap_stack :
  {
    . = ALIGN(4);
    PROVIDE ( end = . );
    PROVIDE ( _end = . );
    __heap_addr = .;
    . = . + __heap_size;
    . = . + __stack_size;
    . = ALIGN(4);
  } > m_data

  .ARM.attributes 0 : { *(.ARM.attributes) }
}