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/*

******************************************************************************

**

**  File        : LinkerScript.ld

**

**  Author		: STM32CubeMX

**

**  Abstract    : Linker script for STM32F103CBTx series

**                128Kbytes FLASH and 20Kbytes 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

**

**  Distribution: The file is distributed “as is,” without any warranty

**                of any kind.

**

*****************************************************************************

** @attention

**

** <h2><center>&copy; COPYRIGHT(c) 2019 STMicroelectronics</center></h2>

**

** Redistribution and use in source and binary forms, with or without modification,

** are permitted provided that the following conditions are met:

**   1. Redistributions of source code must retain the above copyright notice,

**      this list of conditions and the following disclaimer.

**   2. Redistributions in binary form must reproduce the above copyright notice,

**      this list of conditions and the following disclaimer in the documentation

**      and/or other materials provided with the distribution.

**   3. Neither the name of STMicroelectronics nor the names of its contributors

**      may be used to endorse or promote products derived from this software

**      without specific prior written permission.

**

** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

**

*****************************************************************************

*/

/* Entry Point */

ENTRY(Reset_Handler)

/* Highest address of the user mode stack */

_estack = ORIGIN(RAM) + LENGTH(RAM);    /* end of RAM */

/* Generate a link error if heap and stack don't fit into RAM */

_Min_Heap_Size = 0x200;      /* required amount of heap  */

_Min_Stack_Size = 0x400; /* required amount of stack */

/* Specify the memory areas */

MEMORY

{

RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K

FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 128K

}

/* 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);

    _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(8);

    PROVIDE ( end = . );

    PROVIDE ( _end = . );

    . = . + _Min_Heap_Size;

    . = . + _Min_Stack_Size;

    . = ALIGN(8);

  } >RAM

  /* Remove information from the standard libraries */

  /DISCARD/ :

  {

    libc.a ( * )

    libm.a ( * )

    libgcc.a ( * )

  }

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

}