91 lines
2.7 KiB
Plaintext
91 lines
2.7 KiB
Plaintext
ENTRY(Reset_Handler)
|
|
|
|
/* define output sections */
|
|
SECTIONS
|
|
{
|
|
/* The startup code goes first into FLASH */
|
|
.isr_vector :
|
|
{
|
|
. = ALIGN(4);
|
|
KEEP(*(.isr_vector)) /* Startup code */
|
|
|
|
/* This first flash block is 16K annd the isr vectors only take up
|
|
about 400 bytes. So we pull in a couple of object files to pad it
|
|
out. */
|
|
|
|
. = ALIGN(4);
|
|
|
|
/* NOTE: If you update the list of files contained in .isr_vector,
|
|
then be sure to also update smhal/Makefile where it forcibly
|
|
builds each of these files with -Os */
|
|
|
|
*/ff.o(.text*)
|
|
*/vfs_fat_*.o(.text*)
|
|
*/py/formatfloat.o(.text*)
|
|
*/py/parsenum.o(.text*)
|
|
*/py/mpprint.o(.text*)
|
|
|
|
. = ALIGN(4);
|
|
} >FLASH_ISR
|
|
|
|
/* The program code and other data goes into FLASH */
|
|
.text :
|
|
{
|
|
. = ALIGN(4);
|
|
*(.text*) /* .text* sections (code) */
|
|
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
|
|
/* *(.glue_7) */ /* glue arm to thumb code */
|
|
/* *(.glue_7t) */ /* glue thumb to arm code */
|
|
|
|
. = ALIGN(4);
|
|
_etext = .; /* define a global symbol at end of code */
|
|
} >FLASH_TEXT
|
|
|
|
/* used by the startup to initialize data */
|
|
_sidata = LOADADDR(.data);
|
|
|
|
/* This is the initialized data section
|
|
The program executes knowing that the data is in the RAM
|
|
but the loader puts the initial values in the FLASH (inidata).
|
|
It is one task of the startup to copy the initial values from FLASH to RAM. */
|
|
.data :
|
|
{
|
|
. = ALIGN(4);
|
|
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
|
|
*(.data*) /* .data* sections */
|
|
|
|
. = ALIGN(4);
|
|
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
|
|
} >RAM AT> FLASH_TEXT
|
|
|
|
/* Uninitialized data section */
|
|
.bss :
|
|
{
|
|
. = ALIGN(4);
|
|
_sbss = .; /* define a global symbol at bss start; used by startup code */
|
|
*(.bss*)
|
|
*(COMMON)
|
|
|
|
. = ALIGN(4);
|
|
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
|
|
} >RAM
|
|
|
|
/* this is to define the start of the heap, and make sure we have a minimum size */
|
|
.heap :
|
|
{
|
|
. = ALIGN(4);
|
|
. = . + _minimum_heap_size;
|
|
. = ALIGN(4);
|
|
} >RAM
|
|
|
|
/* this just checks there is enough RAM for the stack */
|
|
.stack :
|
|
{
|
|
. = ALIGN(4);
|
|
. = . + _minimum_stack_size;
|
|
. = ALIGN(4);
|
|
} >RAM
|
|
|
|
.ARM.attributes 0 : { *(.ARM.attributes) }
|
|
}
|