mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-29 09:38:08 +00:00
93 lines
2.8 KiB
Plaintext
93 lines
2.8 KiB
Plaintext
/*
|
|
TREZORv2 linker script
|
|
based on common.ld and stm32f405.ld
|
|
*/
|
|
|
|
/* Specify the memory areas */
|
|
MEMORY
|
|
{
|
|
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 32K
|
|
CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
|
|
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
|
|
}
|
|
|
|
/* produce a link error if there is not this amount of RAM for these sections */
|
|
_minimum_stack_size = 2K;
|
|
_minimum_heap_size = 16K;
|
|
|
|
/* Define tho top end of the stack. The stack is full descending so begins just
|
|
above last byte of RAM. Note that EABI requires the stack to be 8-byte
|
|
aligned for a call. */
|
|
_estack = ORIGIN(RAM) + LENGTH(RAM);
|
|
|
|
ENTRY(Reset_Handler)
|
|
|
|
/* define output sections */
|
|
SECTIONS
|
|
{
|
|
/* The startup code goes first into FLASH */
|
|
.flash :
|
|
{
|
|
. = ALIGN(4);
|
|
KEEP(*(.isr_vector)) /* Startup code */
|
|
. = ALIGN(4);
|
|
*(.text*) /* .text* sections (code) */
|
|
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
|
|
. = ALIGN(4);
|
|
_etext = .; /* define a global symbol at end of code */
|
|
} >FLASH
|
|
|
|
/* 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
|
|
|
|
/* 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) }
|
|
}
|
|
|
|
/* RAM extents for the garbage collector */
|
|
_ram_start = ORIGIN(RAM);
|
|
_ram_end = ORIGIN(RAM) + LENGTH(RAM);
|
|
_heap_start = _ebss; /* heap starts just after statically allocated memory */
|
|
_heap_end = 0x2001c000; /* tunable */
|