mirror of https://github.com/YosysHQ/picorv32.git
63 lines
2.4 KiB
Plaintext
63 lines
2.4 KiB
Plaintext
MEMORY
|
|
{
|
|
FLASH (rx) : ORIGIN = 0x00100000, LENGTH = 0x400000 /* entire flash, 4 MiB */
|
|
RAM (xrw) : ORIGIN = 0x00000000, LENGTH = 0x000400 /* 1 KB */
|
|
}
|
|
|
|
SECTIONS {
|
|
/* The program code and other data goes into FLASH */
|
|
.text :
|
|
{
|
|
. = ALIGN(4);
|
|
*(.text) /* .text sections (code) */
|
|
*(.text*) /* .text* sections (code) */
|
|
*(.rodata) /* .rodata sections (constants, strings, etc.) */
|
|
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
|
|
*(.srodata) /* .rodata sections (constants, strings, etc.) */
|
|
*(.srodata*) /* .rodata* sections (constants, strings, etc.) */
|
|
_etext = .; /* define a global symbol at end of code */
|
|
_sidata = _etext; /* This is used by the startup in order to initialize the .data secion */
|
|
} >FLASH
|
|
|
|
|
|
/* 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 : AT ( _sidata )
|
|
{
|
|
. = ALIGN(4);
|
|
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
|
|
_ram_start = .; /* create a global symbol at ram start for garbage collector */
|
|
. = ALIGN(4);
|
|
*(.data) /* .data sections */
|
|
*(.data*) /* .data* sections */
|
|
*(.sdata) /* .sdata sections */
|
|
*(.sdata*) /* .sdata* 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
|
|
|
|
/* Uninitialized data section */
|
|
.bss :
|
|
{
|
|
. = ALIGN(4);
|
|
_sbss = .; /* define a global symbol at bss start; used by startup code */
|
|
*(.bss)
|
|
*(.bss*)
|
|
*(.sbss)
|
|
*(.sbss*)
|
|
*(COMMON)
|
|
|
|
. = ALIGN(4);
|
|
_ebss = .; /* define a global symbol at bss end; used by startup code */
|
|
} >RAM
|
|
|
|
/* this is to define the start of the heap, and make sure we have a minimum size */
|
|
.heap :
|
|
{
|
|
. = ALIGN(4);
|
|
_heap_start = .; /* define a global symbol at heap start */
|
|
} >RAM
|
|
}
|