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flash.ld
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188 lines (170 loc) · 5.39 KB
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/* Linker script for STM32F407 */
/* Entry Point */
ENTRY(Reset_Handler)
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x000; /* required amount of heap */
_Min_Stack_Size = 0x800; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
BOOTLOADER (rw) : ORIGIN = 0x08000000, LENGTH = 16K /* Sector 0 */
EEPROM (rw) : ORIGIN = 0x08004000, LENGTH = 16K /* Sector 1 */
FIRMWARE (rx) : ORIGIN = 0x08008000, LENGTH = 224K /* Sector 2 */
PATCHFLASH (rx) : ORIGIN = 0x08040000, LENGTH = 128K /* Sector 6 */ /* total Flash memory is 1Mb */
CCMHEAP (rw) : ORIGIN = 0x10004000, LENGTH = 32K
CCMRAM (rw) : ORIGIN = 0x1000c000, LENGTH = 16K /* total CCM is 64kb */
FIRMWARERAM (rwx): ORIGIN = 0x20000000, LENGTH = 48K
PATCHRAM (rwx) : ORIGIN = 0x2000c000, LENGTH = 144K /* total RAM is 192kb */
NVRAM (rw) : ORIGIN = 0x40024000, LENGTH = 4K
EXTRAM (rx) : ORIGIN = 0x68000000, LENGTH = 1M
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.program_header :
{
. = ALIGN(8);
_startprog = ABSOLUTE(.); /* define a global symbol at program start */
KEEP(*(.program_header)) /* Startup code */
. = ALIGN(8);
} >PATCHRAM /* AT>PATCHFLASH */
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(8);
_text_start = .;
*(.text.Reset_Handler)
*(.text.startup)
*(.main*)
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
. = ALIGN(8);
/* These are for static constructors and destructors under ELF */
KEEP (*crtbegin.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*crtend.o(.ctors))
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*crtend.o(.dtors))
KEEP (*(.init))
KEEP (*(.fini))
. = ALIGN(8);
_etext = .; /* define a global symbol at end of code */
_text_end = .;
} >PATCHRAM /* AT>PATCHFLASH */
_text_load = LOADADDR (.text);
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >PATCHRAM /* AT>PATCHFLASH */
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >PATCHRAM /* AT>PATCHFLASH */
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >PATCHRAM /* AT>PATCHFLASH */
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >PATCHRAM /* AT>PATCHFLASH */
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array*))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
} >PATCHRAM /* AT>PATCHFLASH */
/* used by the startup to initialize data */
_sidata = .;
/* Initialized data sections goes into RAM, load LMA copy after code */
.data : AT ( _sidata )
{
. = ALIGN(8);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
. = ALIGN(8);
_edata = .; /* define a global symbol at data end */
} >PATCHRAM
/* Uninitialized data section */
. = ALIGN(8);
.bss :
{
_endprog = ABSOLUTE(.); /* define a global symbol at program end */
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(8);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >PATCHRAM
.pv (NOLOAD) :
{
. = ALIGN(8);
_programvector = ABSOLUTE(.);
*(.pv)
. = ALIGN(8);
PROVIDE ( _eprogram = . );
PROVIDE ( _stack = . );
} >PATCHRAM
_eram = ORIGIN(PATCHRAM) + 80k; /* Limit to 80k for OwlWare compatiblity */
_estack = ORIGIN(PATCHRAM) + 80k;
.fastheap (NOLOAD) :
{
. = ALIGN(8);
PROVIDE ( _fastheap = . );
. = ALIGN(8);
} >CCMHEAP
_fasteheap = ORIGIN(CCMHEAP) + LENGTH(CCMHEAP);
/* CCM section, vars must be located here explicitly */
/* Example: int foo __attribute__ ((section (".ccmdata"))); */
.ccmdata (NOLOAD) :
{
. = ALIGN(8);
*(.ccmdata)
. = ALIGN(8);
} >CCMRAM
/* /\* User_stack section, used to check that there is enough RAM left *\/ */
/* ._user_stack (NOLOAD) : */
/* { */
/* . = ALIGN(8); */
/* PROVIDE ( _stack = . ); */
/* . = . + _Min_Stack_Size; */
/* . = ALIGN(8); */
/* } >CCMRAM */
/* _estack = ORIGIN(CCMRAM) + LENGTH(CCMRAM); */
/* External SRAM, used for heap memory */
.extdata (NOLOAD) :
{
. = ALIGN(8);
*(.extdata)
. = ALIGN(8);
PROVIDE ( _heap = . );
. = . + _Min_Heap_Size;
} >EXTRAM
_eheap = ORIGIN(EXTRAM) + LENGTH(EXTRAM);
/* Remove information from the standard libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ARM.attributes 0 : { *(.ARM.attributes) }
}