arachnouphobia/stm32f030f4p6/ld/stm32f030f4_flash_8k.ld

/*
 *****************************************************************************
 **
 ** File : STM32F030F4_FLASH.ld
 **
 ** Abstract : Linker script for STM32F030F4 Device with
 ** 16KByte FLASH, 4KByte RAM
 **
 ** Set heap size, stack size and stack location according
 ** to application requirements.
 **
 ** Set memory bank area and size if external memory is used.
 **
 ** Target : STMicroelectronics STM32
 **
 *****************************************************************************
 */

/* Entry Point */
ENTRY(Reset_Handler)

/* Highest address of the user mode stack */
_estack = 0x20001000; /* end of 4K RAM */

/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0; /* required amount of heap */
_Min_Stack_Size = 0x80; /* required amount of stack */

/* Specify the memory areas */
MEMORY
{
    FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 8K
    RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 4K
    MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
}

/* Define output sections */
SECTIONS
{
    /* The startup code goes first into FLASH */
    .isr_vector :
    {
        . = ALIGN(4);
        KEEP(*(.isr_vector)) /* Startup code */
        . = ALIGN(4);
} >FLASH

/* The program code and other data goes into FLASH */
.text :
{
    . = ALIGN(4);
    *(.text) /* .text sections (code) */
        *(.text*) /* .text* sections (code) */
        *(.glue_7) /* glue arm to thumb code */
        *(.glue_7t) /* glue thumb to arm code */
        *(.eh_frame)

        KEEP (*(.init))
        KEEP (*(.fini))

        . = ALIGN(4);
        _etext = .; /* define a global symbols at end of code */
} >FLASH

/* Constant data goes into FLASH */
.rodata :
{
    . = ALIGN(4);
    *(.rodata) /* .rodata sections (constants, strings, etc.) */
        *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
        . = ALIGN(4);
} >FLASH

.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
.ARM : {
    __exidx_start = .;
    *(.ARM.exidx*)
    __exidx_end = .;
} >FLASH

.preinit_array :
{
    PROVIDE_HIDDEN (__preinit_array_start = .);
    KEEP (*(.preinit_array*))
    PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
    PROVIDE_HIDDEN (__init_array_start = .);
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array*))
    PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
    PROVIDE_HIDDEN (__fini_array_start = .);
    KEEP (*(SORT(.fini_array.*)))
    KEEP (*(.fini_array*))
    PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH

/* used by the startup to initialize data */
_sidata = LOADADDR(.data);

/* Initialized data sections goes into RAM, load LMA copy after code */
.data :
{
    . = ALIGN(4);
    _sdata = .; /* create a global symbol at data start */
    *(.data) /* .data sections */
        *(.data*) /* .data* sections */

        . = ALIGN(4);

        *(.ramfunctions)
        _edata = .; /* define a global symbol at data end */
} >RAM AT> FLASH

/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
    /* 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(4);
        _ebss = .; /* define a global symbol at bss end */
        __bss_end__ = _ebss;
} >RAM

/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack :
{
    . = ALIGN(4);
    PROVIDE ( end = . );
    PROVIDE ( _end = . );
    . = . + _Min_Heap_Size;
    . = . + _Min_Stack_Size;
    . = ALIGN(4);
} >RAM

/* MEMORY_bank1 section, code must be located here explicitly */
/* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
.memory_b1_text :
{
    *(.mb1text) /* .mb1text sections (code) */
        *(.mb1text*) /* .mb1text* sections (code) */
        *(.mb1rodata) /* read-only data (constants) */
        *(.mb1rodata*)
} >MEMORY_B1

/* Remove information from the standard libraries */
/DISCARD/ :
{
    libc.a ( * )
    libm.a ( * )
    libgcc.a ( * )
}

.ARM.attributes 0 : { *(.ARM.attributes) }
}