87 lines
2.4 KiB
Plaintext
87 lines
2.4 KiB
Plaintext
|
/* Memory layout for bootloader configuration (this here describes the app part):
|
||
|
|
|
||
|
|
FLASH_APP .isr_vector
|
||
|
|
FLASH_APP .text
|
||
|
|
FLASH_APP .data
|
||
|
|
|
||
|
|
RAM .data
|
||
|
|
RAM .bss
|
||
|
|
RAM .heap
|
||
|
|
RAM .stack
|
||
|
|
*/
|
||
|
|
|
||
|
|
ENTRY(Reset_Handler)
|
||
|
|
|
||
|
|
/* define output sections */
|
||
|
|
SECTIONS
|
||
|
|
{
|
||
|
|
/* The startup code goes first into FLASH */
|
||
|
|
.isr_vector :
|
||
|
|
{
|
||
|
|
. = ALIGN(4);
|
||
|
|
KEEP(*(.isr_vector)) /* Startup code */
|
||
|
|
|
||
|
|
. = ALIGN(4);
|
||
|
|
} >FLASH_APP
|
||
|
|
|
||
|
|
/* 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_APP
|
||
|
|
|
||
|
|
/* 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_APP
|
||
|
|
|
||
|
|
/* 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) }
|
||
|
|
}
|