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OUTPUT_ARCH(arm)
ENTRY(_start)
MEMORY {
ewram : ORIGIN = 0x02000000, LENGTH = 256K /* on-board work RAM (2 wait states) */
iwram : ORIGIN = 0x03000000, LENGTH = 32K /* in-chip work RAM (faster) */
rom : ORIGIN = 0x08000000, LENGTH = 32M /* flash ROM */
}
__stack_size_irq = 1K;
__stack_size_usr = 2K;
SECTIONS
{
.text :
{
KEEP (*(.init))
*(.text)
. = ALIGN(4);
} >rom
.rodata :
{
. = ALIGN(4);
*(.rodata)
*(.rodata*)
. = ALIGN(4);
} >rom
/* Put the stack at the bottom of RAM, so that the application will
* crash on stack overflow instead of silently corrupting memory.
* See: http://blog.japaric.io/stack-overflow-protection/ */
.stack (NOLOAD) :
{
. = ALIGN(4);
_stack_top_irq = .;
. += __stack_size_irq;
_stack_top = .;
. += __stack_size_usr;
} >iwram
/* Start address (in flash) of .data, used by startup code. */
_sidata = LOADADDR(.data);
/* Globals with initial value */
.data :
{
. = ALIGN(4);
_sdata = .; /* used by startup code */
*(.data)
*(.data*)
*(.iwram .iwram.*)
. = ALIGN(4);
_edata = .; /* used by startup code */
} >iwram AT>rom
/* Zero-initialized globals */
.bss :
{
. = ALIGN(4);
_sbss = .; /* used by startup code */
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* used by startup code */
} >iwram
/DISCARD/ :
{
*(.ARM.exidx) /* causes 'no memory region specified' error in lld */
*(.ARM.exidx.*) /* causes spurious 'undefined reference' errors */
}
}
/* For the memory allocator. */
_heap_start = ORIGIN(ewram);
_heap_end = ORIGIN(ewram) + LENGTH(ewram);
_globals_start = _sdata;
_globals_end = _ebss;
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