[STM32MP157_DK] Add linker script

Author: kbumsik

variants/STM32MP157_DK/ldscript.ld

@@ -1,9 +1,9 @@
 /*
-*****************************************************************************
+******************************************************************************
 **
-**  File        : ldscript.ld
+**  File        : LinkerScript.ld
 **
-**  Abstract    : Linker script for STM32 Device
+**  Abstract    : Linker script for STM32MP1 series
 **
 **                Set heap size, stack size and stack location according
 **                to application requirements.
@@ -12,15 +12,191 @@
 **
 **  Target      : STMicroelectronics STM32
 **
+**  Distribution: The file is distributed “as is,” without any warranty
+**                of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; Copyright (c) 2019 STMicroelectronics. 
+** All rights reserved.</center></h2>
+**
+** This software component is licensed by ST under BSD 3-Clause license,
+** the License; You may not use this file except in compliance with the 
+** License. You may obtain a copy of the License at:
+**                       opensource.org/licenses/BSD-3-Clause
 **
 *****************************************************************************
 */
-/* Copy here linker script for the new STM32 Device
- * or
- * replace this file by the new one with the same file name
- * It could be get thanks STM32CubeMX after code generation for Toolchain/IDE: 'SW4STM32',
- * ldscript will be availabe in the root folder (STM32YYxxxxxx_FLASH.ld)
- * or
- * copied from a STM32CubeYY project examples
- * where 'YY' could be F0, F1, F2, F3, F4, F7, G0, H7, L0, L1, L4, WB)
- */
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x10040000;    /* end of RAM */
+
+_Min_Heap_Size  = 0x200;  /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Memories definition */
+MEMORY
+{
+  m_interrupts (RX)  : ORIGIN = 0x00000000, LENGTH = 0x00000298
+  m_text       (RX)  : ORIGIN = 0x10000000, LENGTH = 0x00020000
+  m_data       (RW)  : ORIGIN = 0x10020000, LENGTH = 0x00020000
+  m_ipc_shm    (RW)  : ORIGIN = 0x10040000, LENGTH = 0x00008000
+}
+
+ /* Symbols needed for OpenAMP to enable rpmsg */
+__OPENAMP_region_start__  = ORIGIN(m_ipc_shm);
+__OPENAMP_region_end__ = ORIGIN(m_ipc_shm)+LENGTH(m_ipc_shm);
+
+/* Sections */
+SECTIONS
+{
+  /* The startup code into ROM memory */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } > m_interrupts
+ 
+
+  /* The program code and other data into ROM memory */
+  .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 */
+  } > m_text
+
+  /* Constant data into ROM memory*/
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } > m_text
+
+  .ARM.extab   : { 
+  	. = ALIGN(4);
+  	*(.ARM.extab* .gnu.linkonce.armextab.*)
+  	. = ALIGN(4);
+  } > m_text
+  
+  .ARM : {
+    . = ALIGN(4);
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+    . = ALIGN(4);
+  } > m_text
+
+  .preinit_array     :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+    . = ALIGN(4);
+  } > m_text
+  
+  .init_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+    . = ALIGN(4);
+  } > m_text
+  
+  .fini_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+    . = ALIGN(4);
+  } > m_text
+
+  /* Used by the startup to initialize data */
+  __DATA_ROM = .;
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections */
+  .data :  AT(__DATA_ROM)
+  {
+    . = 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 */
+  } > m_data
+
+  __DATA_END = __DATA_ROM + (_edata - _sdata);
+  text_end = ORIGIN(m_text) + LENGTH(m_text);
+  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
+
+  .resource_table :
+  {
+    . = ALIGN(4);
+    KEEP (*(.resource_table*))
+    . = ALIGN(4);
+  } > m_data
+  
+
+  /* Uninitialized data section into RAM memory */
+  . = 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;
+  } > m_data
+
+  /* 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);
+  } > m_data
+
+  
+
+  /* Remove information from the compiler libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+
+}