ENTRY( _start )

__stack_size = 2048;

PROVIDE( _stack_size = __stack_size );


MEMORY
{
/* CH32V30x_D8C - CH32V305RB-CH32V305FB
   CH32V30x_D8 - CH32V303CB-CH32V303RB
*/
/*
	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 128K
	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 32K
*/
    
/* CH32V30x_D8C - CH32V307VC-CH32V307WC-CH32V307RC
   CH32V30x_D8 - CH32V303VC-CH32V303RC
   FLASH + RAM supports the following configuration
   FLASH-192K + RAM-128K
   FLASH-224K + RAM-96K
   FLASH-256K + RAM-64K  
   FLASH-288K + RAM-32K  
*/
	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 288K
	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 32K
}


SECTIONS
{

	.init :
	{
		_sinit = .;
		. = ALIGN(4);
		KEEP(*(SORT_NONE(.init)))
		. = ALIGN(4);
		_einit = .;
	} >FLASH AT>FLASH

  .vector :
  {
      *(.vector);
	  . = ALIGN(64);
  } >FLASH AT>FLASH

	.text :
	{
		. = ALIGN(4);
		*(.text)
		*(.text.*)
		*(.rodata)
		*(.rodata*)
		*(.gnu.linkonce.t.*)
		. = ALIGN(4);
	} >FLASH AT>FLASH 

	.fini :
	{
		KEEP(*(SORT_NONE(.fini)))
		. = ALIGN(4);
	} >FLASH AT>FLASH

	PROVIDE( _etext = . );
	PROVIDE( _eitcm = . );	

	.preinit_array  :
	{
	  PROVIDE_HIDDEN (__preinit_array_start = .);
	  KEEP (*(.preinit_array))
	  PROVIDE_HIDDEN (__preinit_array_end = .);
	} >FLASH AT>FLASH 
	
	.init_array     :
	{
	  PROVIDE_HIDDEN (__init_array_start = .);
	  KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
	  KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
	  PROVIDE_HIDDEN (__init_array_end = .);
	} >FLASH AT>FLASH 
	
	.fini_array     :
	{
	  PROVIDE_HIDDEN (__fini_array_start = .);
	  KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
	  KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
	  PROVIDE_HIDDEN (__fini_array_end = .);
	} >FLASH AT>FLASH 
	
	.ctors          :
	{
	  /* 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))
	  KEEP (*crtbegin?.o(.ctors))
	  /* We don't want to include the .ctor section 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 *crtend?.o ) .ctors))
	  KEEP (*(SORT(.ctors.*)))
	  KEEP (*(.ctors))
	} >FLASH AT>FLASH 
	
	.dtors          :
	{
	  KEEP (*crtbegin.o(.dtors))
	  KEEP (*crtbegin?.o(.dtors))
	  KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
	  KEEP (*(SORT(.dtors.*)))
	  KEEP (*(.dtors))
	} >FLASH AT>FLASH 

	.dalign :
	{
		. = ALIGN(4);
		PROVIDE(_data_vma = .);
	} >RAM AT>FLASH	

	.dlalign :
	{
		. = ALIGN(4); 
		PROVIDE(_data_lma = .);
	} >FLASH AT>FLASH

	.data :
	{
    	*(.gnu.linkonce.r.*)
    	*(.data .data.*)
    	*(.gnu.linkonce.d.*)
		. = ALIGN(8);
    	PROVIDE( __global_pointer$ = . + 0x800 );
    	*(.sdata .sdata.*)
		*(.sdata2.*)
    	*(.gnu.linkonce.s.*)
    	. = ALIGN(8);
    	*(.srodata.cst16)
    	*(.srodata.cst8)
    	*(.srodata.cst4)
    	*(.srodata.cst2)
    	*(.srodata .srodata.*)
    	. = ALIGN(4);
		PROVIDE( _edata = .);
	} >RAM AT>FLASH

	.bss :
	{
		. = ALIGN(4);
		PROVIDE( _sbss = .);
  	    *(.sbss*)
        *(.gnu.linkonce.sb.*)
		*(.bss*)
     	*(.gnu.linkonce.b.*)		
		*(COMMON*)
		. = ALIGN(4);
		PROVIDE( _ebss = .);
	} >RAM AT>FLASH

	PROVIDE( _end = _ebss);
	PROVIDE( end = . );

    .stack ORIGIN(RAM) + LENGTH(RAM) - __stack_size :
    {
        PROVIDE( _heap_end = . );    
        . = ALIGN(4);
        PROVIDE(_susrstack = . );
        . = . + __stack_size;
        PROVIDE( _eusrstack = .);
    } >RAM 

}