/*============================================================================
 *		LinkerScript for AT91SAM7S256 to test EVBmmTm Propox Board
 *============================================================================
 *
 *	The Linker Script defines how the code and data emitted by the
 *	GNU C compiler and assembler are to be loaded into memory (code goes
 *	into RAM, variables go into RAM).
 *	Any symbols defined in the Linker Script are automatically global and
 *	available to the rest of the program.
 *
 *	To force the linker to use this LINKER SCRIPT, just add the
 *	-T EVBmmTm_SAM7S256_RAM.cmd directive to the linker flags in the makefile.
 *	For example,
 *		LFLAGS  =  -Map main.map -T EVBmmTm_SAM7S256_RAM.cmd
 *
 *		The order that the object files are listed in the makefile determines
 *		what .text section is placed first.
 *
 *		For example: $(LD) $(LFLAGS) -o main.out $(OBJECTS)
 *			cstartup.o is first in the list of objects, so it will be
 *			placed at address 0x00000000
 *
 *	The top of the stack (_stack_end) is (last_byte_of_ram +1) - 4
 *
 *	Therefore:	_stack_end = (0x0020FFFF + 1) - 4 = 0x00210000 - 4 = 0x0020FFFC
 *
 *   Note that this symbol (_stack_end) is automatically GLOBAL and will be
 *	used by the cstartup.s startup assembler routine to specify all stacks
 *	for the various ARM modes
 *
 *					MEMORY MAP
 *				|								|0x00210000  <---------- _stack_end
 *		------->|-------------------------------|0x0021FFFF
 *				|								|
 *				|	UDF Stack -> 32 bytes		|
 *				|								|
 *				|-------------------------------|0x0020FFE0
 *				|								|
 *				|	ABT Stack -> 32 bytes		|
 *				|								|
 *				|-------------------------------|0x0020FFC0
 *				|								|
 *				|	FIQ Stack -> 128 bytes		|
 *				|								|
 *				|-------------------------------|0x0020FF40
 *				|								|
 *				|	IRQ Stack -> 128 bytes		|
 *				|								|
 *				|-------------------------------|0x0020FEC0
 *				|								|
 *				|	SVC Stack -> 128 bytes		|
 *				|								|
 *				|-------------------------------|0x0020FE40
 *				|								|
 *				|	stack area for system/user	|
 *				|								|
 *				|								|
 *				|		free ram				|
 *		ram		|								|
 *				|								|
 *				|.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.|0x0020XXXX <-------- _ebss
 *				|								|
 *				| .bss uninitialized variables	|
 *				|								|
 *				|.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.|0x0020XXXX <-------- _sbss
 *				|								|					  _edata
 *				|								|
 *				| .data initialized variables	|
 *				|								|					  _sdata
 *				|.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.|0x0020XXXX <-------- _etext
 *				|								|
 *				|								|
 *				|		C code					|
 *				|								|
 *				|								|
 *				|-------------------------------|0x00000XXX  main()
 *				|								|
 *				|	Startup Code (cstartup.s)	|
 *				|		(assembler)				|
 *				|								|
 *				|-------------------------------|0x00000020
 *				|	FIQ and IRQ Code			|
 *				|								|
 *				|-------------------------------|0x00000020
 *				|								|
 *				|	Interrupt Vector Table		|
 *				|		32 bytes				|
 *		------->|-------------------------------|0x00000000 _vec_reset
 *
 * Author:  Heiko Suesens	Dec. 22, 2007
 *============================================================================*/

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)

/* identify the Entry Point  (_reset_handler is defined in file cstartup.s) */
ENTRY(_reset_handler)

/* define the output sections  */
SECTIONS 
{
	.text :					/* collect all sections that should go into SRAM after startup  */ 
	{
		_stext = .;			/* define a global symbol _stext just at the begin of code */
		*(.vectors)				/* interrupt vectors at start */
		*(.text)				/* all .text sections (code)  */
		*(.rodata)				/* all .rodata sections (constants, strings, etc.)  */
		*(.rodata*)				/* all .rodata* sections (constants, strings, etc.)  */
		. = ALIGN(4);			/* align section on 32-bit boundary */
		_etext = .;			/* define a global symbol _etext just after the last code byte */
	}

	.data :	AT ( ADDR (.text) + SIZEOF (.text) )
								/* collect all initialized .data sections that go into RAM  */ 
	{ 
		_sdata = .;			/* create a global symbol marking the start of the .data section  */
		*(.data)				/* all .data sections  */
		*(.ramfunc)				/* all .ramfunc sections  */
		_edata = .;			/* define a global symbol marking the end of the .data section  */
	}

	.bss (NOLOAD) : { 			/* collect all uninitialized .bss sections that go into FLASH */
		. = ALIGN(4);			/* align section on 32-bit boundary */
		_sbss = .;				/* define a global symbol marking the start of the .bss section */
		*(.bss)
		_ebss = .;				/* define a global symbol marking the end of the .bss section */
	}

}
end = .;						/* define a global symbol marking the end of application */
	


****************************************************************************************************

Cross Reference Table

Symbol                                            File
AT91F_Dabt_handler                                cpu_init.o
                                                  cstartup_flash.o
AT91F_Default_FIQ_handler                         cpu_init.o
AT91F_Default_IRQ_handler                         cpu_init.o
AT91F_Pabt_handler                                cpu_init.o
                                                  cstartup_flash.o
AT91F_Software_Int_handler                        cpu_init.o
                                                  cstartup_flash.o
AT91F_Spurious_handler                            cpu_init.o
                                                  cstartup_flash.o
FIQCount                                          main.o
                                                  cstartup_flash.o
Flag_ptr                                          main.o
                                                  glcd_unit.o
                                                  uart_unit.o
                                                  pio_unit.o
                                                  flash_unit.o
                                                  spi_unit.o
                                                  pit_unit.o
                                                  cpu_init.o
SER_OUTPUT_Flags                                  uart_unit.o
                                                  pit_unit.o
SPI_Flags                                         flash_unit.o
                                                  spi_unit.o
SPI_RxBuffer                                      flash_unit.o
                                                  spi_unit.o
SPI_RxHead                                        flash_unit.o
                                                  spi_unit.o
SPI_RxTail                                        flash_unit.o
                                                  spi_unit.o
SPI_TxBuffer                                      flash_unit.o
                                                  spi_unit.o
SPI_TxHead                                        flash_unit.o
                                                  spi_unit.o
SPI_TxTail                                        flash_unit.o
                                                  spi_unit.o
TODO_Flags                                        main.o
                                                  uart_unit.o
                                                  pio_unit.o
                                                  pit_unit.o
UART0_RxBuffer                                    uart_unit.o
UART0_RxHead                                      uart_unit.o
UART0_RxTail                                      uart_unit.o
UART0_TxBuffer                                    uart_unit.o
UART0_TxHead                                      uart_unit.o
UART0_TxTail                                      uart_unit.o
_ebss                                             cstartup_flash.o
_edata                                            cstartup_flash.o
_etext                                            cstartup_flash.o
_reset_handler                                    cstartup_flash.o
_sbss                                             cstartup_flash.o
_sdata                                            cstartup_flash.o
cpu_init                                          cpu_init.o
                                                  cstartup_flash.o
flash_Buffer1_Read                                flash_unit.o
flash_ContinousArrayRead                          flash_unit.o
flash_buffer                                      flash_unit.o
flash_buffer_size                                 flash_unit.o
flash_cmd_read_buffer1                            flash_unit.o
flash_cmd_read_buffer1_size                       flash_unit.o
flash_cmd_read_buffer2                            flash_unit.o
flash_cmd_read_buffer2_size                       flash_unit.o
flash_cmd_read_id                                 flash_unit.o
flash_cmd_read_id_size                            flash_unit.o
flash_cmd_read_status                             flash_unit.o
flash_cmd_read_status_size                        flash_unit.o
flash_init                                        flash_unit.o
                                                  main.o
flash_read_id                                     flash_unit.o
flash_ready                                       flash_unit.o
glcd_busy                                         glcd_unit.o
glcd_clear_screen                                 glcd_unit.o
                                                  main.o
glcd_init                                         glcd_unit.o
                                                  main.o
glcd_pos_counter                                  main.o
                                                  glcd_unit.o
glcd_print_char                                   glcd_unit.o
glcd_print_string                                 glcd_unit.o
                                                  main.o
glcd_set_position                                 glcd_unit.o
glcd_strobe                                       glcd_unit.o
glcd_write_command                                glcd_unit.o
glcd_write_databyte                               glcd_unit.o
main                                              main.o
                                                  cstartup_flash.o
msec_counter                                      main.o
                                                  pit_unit.o
pdc_flash_Buffer1_Read                            flash_unit.o
                                                  main.o
pdc_flash_Buffer1_Write                           flash_unit.o
pdc_flash_Buffer2_Read                            flash_unit.o
pdc_flash_read_id                                 flash_unit.o
                                                  main.o
pdc_flash_read_status                             flash_unit.o
pdc_spi_cmd_read                                  spi_unit.o
                                                  flash_unit.o
pdc_spi_cmd_write                                 spi_unit.o
pdc_spi_read_buffer                               spi_unit.o
                                                  flash_unit.o
pdc_start_RxTx                                    spi_unit.o
pio_init                                          pio_unit.o
                                                  main.o
pioa_irq_handler                                  pio_unit.o
pit_init                                          pit_unit.o
                                                  main.o
pit_irq_handler                                   pit_unit.o
spi_init                                          spi_unit.o
                                                  flash_unit.o
spi_irq_handler                                   spi_unit.o
spi_put_int_2_buffer                              spi_unit.o
                                                  flash_unit.o
spi_start_tx                                      spi_unit.o
                                                  flash_unit.o
strlen                                            d:/programme/atmel/arm/programme/yagarto/bin/../lib/gcc/arm-elf/4.3.3/../../../../arm-elf/lib\libc.a(lib_a-strlen.o)
                                                  uart_unit.o
tmp_counter                                       main.o
uart0_irq_handler                                 uart_unit.o
uart_get_string                                   uart_unit.o
uart_init                                         uart_unit.o
                                                  main.o
uart_print_buffer                                 uart_unit.o
                                                  main.o
                                                  cpu_init.o
uart_print_mem                                    uart_unit.o
uart_print_reg                                    uart_unit.o
uart_print_string                                 uart_unit.o
uart_put_char_2_buffer                            uart_unit.o


**********************************************************************************************************

**** Build of configuration Default for project EVBmmTm_Propox ****

make all 
Heiko Suesens -> compile cstartup_flash
arm-elf-gcc -g -mcpu=arm7tdmi -D__ASSEMBLY__ -DAT91SAM7S256 -c -O0 -Wall -I./ -Wa,-adhlns=cstartup_flash.lst,--gdwarf-2 cstartup_flash.S -o cstartup_flash.o
Compiliert für SAM7S256, Memory_End = 0x00210000
Compiliert für SAM7S256 FLASH = 0x00100000
Heiko Suesens -> compile cpu_init
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 cpu_init.c -o cpu_init.o
Heiko Suesens -> compile pit_unit
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 pit_unit.c -o pit_unit.o
Heiko Suesens -> compile spi_unit
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 spi_unit.c -o spi_unit.o
Heiko Suesens -> compile flash_unit include flash_buffer
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 -DINCLUDE_FLASH_BUFFER flash_unit.c -o flash_unit.o
Heiko Suesens -> compile pio_unit
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 pio_unit.c -o pio_unit.o
Heiko Suesens -> compile uart_unit
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 uart_unit.c -o uart_unit.o
Heiko Suesens -> compile glcd_unit
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 glcd_unit.c -o glcd_unit.o
Heiko Suesens -> compile main
arm-elf-gcc -c -g -mcpu=arm7tdmi -O0 -Wall -I./ -DAT91SAM7S256 main.c -o main.o
arm-elf-gcc -nostartfiles -Wl,--cref -lc -lgcc -TEVBmmTm_SAM7S256_RAM.cmd -Ttext 0x00100000 -Wl,--section-start,Flash_Buffer_Section=0x0013A000 -Tdata 0x0020B000 -n -o evbmmtm_sam7S256_flash.elf cstartup_flash.o cpu_init.o pit_unit.o spi_unit.o flash_unit.o pio_unit.o uart_unit.o glcd_unit.o main.o > evbmmtm_sam7S256_flash.map
d:/programme/atmel/arm/programme/yagarto/bin/../lib/gcc/arm-elf/4.3.3/../../../../arm-elf/bin/ld.exe: warning: dot moved backwards before `Flash_Buffer_Section'
d:/programme/atmel/arm/programme/yagarto/bin/../lib/gcc/arm-elf/4.3.3/../../../../arm-elf/bin/ld.exe: warning: dot moved backwards before `Flash_Buffer_Section'
d:/programme/atmel/arm/programme/yagarto/bin/../lib/gcc/arm-elf/4.3.3/../../../../arm-elf/bin/ld.exe: warning: dot moved backwards before `Flash_Buffer_Section'
arm-elf-objcopy --strip-debug --strip-unneeded evbmmtm_sam7S256_flash.elf -O binary evbmmtm_sam7S256_flash.bin
arm-elf-objdump -D -S evbmmtm_sam7S256_flash.elf > evbmmtm_sam7S256_flash.lst