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File    : STM32F1xx_Flash.icf
Purpose : STM32F1xx linker script for application placement in Flash,
          for use with the SEGGER Linker.
Maps    : STM32F100C4, STM32F100C6, STM32F100C8, STM32F100CB, STM32F100R4, 
          STM32F100R6, STM32F100R8, STM32F100RB, STM32F100RC, STM32F100RD, 
          STM32F100RE, STM32F100V8, STM32F100VB, STM32F100VC, STM32F100VD, 
          STM32F100VE, STM32F100ZC, STM32F100ZD, STM32F100ZE, STM32F101C4, 
          STM32F101C6, STM32F101C8, STM32F101CB, STM32F101R4, STM32F101R6, 
          STM32F101R8, STM32F101RB, STM32F101RC, STM32F101RD, STM32F101RE, 
          STM32F101RF, STM32F101RG, STM32F101T4, STM32F101T6, STM32F101T8, 
          STM32F101TB, STM32F101V8, STM32F101VB, STM32F101VC, STM32F101VD, 
          STM32F101VE, STM32F101VF, STM32F101VG, STM32F101ZC, STM32F101ZD, 
          STM32F101ZE, STM32F101ZF, STM32F101ZG, STM32F102C4, STM32F102C6, 
          STM32F102C8, STM32F102CB, STM32F102R4, STM32F102R6, STM32F102R8, 
          STM32F102RB, STM32F103C4, STM32F103C6, STM32F103C8, STM32F103CB, 
          STM32F103R4, STM32F103R6, STM32F103R8, STM32F103RB, STM32F103RC, 
          STM32F103RD, STM32F103RE, STM32F103RF, STM32F103RG, STM32F103T4, 
          STM32F103T6, STM32F103T8, STM32F103TB, STM32F103V8, STM32F103VB, 
          STM32F103VC, STM32F103VD, STM32F103VE, STM32F103VF, STM32F103VG, 
          STM32F103ZC, STM32F103ZD, STM32F103ZE, STM32F103ZF, STM32F103ZG, 
          STM32F105R8, STM32F105RB, STM32F105RC, STM32F105V8, STM32F105VB, 
          STM32F105VC, STM32F107RB, STM32F107RC, STM32F107VB, STM32F107VC
Literature:
  [1]  SEGGER Linker User Guide (https://www.segger.com/doc/UM20005_Linker.html)
  [2]  SEGGER Linker Section Placement (https://wiki.segger.com/SEGGER_Linker_Script_Files)
*/

define memory with size = 4G;

//
// Combined regions per memory type
//
define region FLASH = FLASH1;
define region RAM   = RAM1;

//
// Block definitions
//
define block vectors                        { section .vectors };                                   // Vector table section
define block vectors_ram                    { section .vectors_ram };                               // Vector table section
define block ctors                          { section .ctors,     section .ctors.*, block with         alphabetical order { init_array } };
define block dtors                          { section .dtors,     section .dtors.*, block with reverse alphabetical order { fini_array } };
define block exidx                          { section .ARM.exidx, section .ARM.exidx.* };
define block tbss                           { section .tbss,      section .tbss.*  };
define block tdata                          { section .tdata,     section .tdata.* };
define block tls with fixed order           { block tbss, block tdata };
define block tdata_load                     { copy of block tdata };
define block heap           with auto size = __HEAPSIZE__,  alignment = 8, readwrite access { };
define block stack          with      size = __STACKSIZE__, alignment = 8, readwrite access { };
define block stack_process  with      size = __STACKSIZE_PROCESS__, alignment = 8, /* fill =0xCD, */ readwrite access { };

//
// Explicit initialization settings for sections
// Packing options for initialize by copy: packing=auto/lzss/zpak/packbits
//
do not initialize                           { section .non_init, section .non_init.*, section .*.non_init, section .*.non_init.* };
do not initialize                           { section .no_init, section .no_init.*, section .*.no_init, section .*.no_init.* };   // Legacy sections, kept for backwards compatibility
do not initialize                           { section .noinit, section .noinit.*, section .*.noinit, section .*.noinit.* };       // Legacy sections, used by some SDKs/HALs
do not initialize                           { block vectors_ram };
initialize by copy with packing=auto        { section .data, section .data.*, section .*.data, section .*.data.* };               // Static data sections
initialize by copy with packing=auto        { section .fast, section .fast.*, section .*.fast, section .*.fast.* };               // "RAM Code" sections

initialize by calling __SEGGER_STOP_X_InitLimits    { section .data.stop.* };

#define USES_ALLOC_FUNC                                   \
  linked symbol malloc || linked symbol aligned_alloc ||  \
  linked symbol calloc || linked symbol realloc

initialize by calling __SEGGER_init_heap if USES_ALLOC_FUNC { block heap };                        // Init the heap if one is required
initialize by calling __SEGGER_init_ctors    { block ctors };                                      // Call constructors for global objects which need to be constructed before reaching main (if any). Make sure this is done after setting up heap.

//assert with warning "free() linked into application but there are no calls to an allocation function!" {
//  linked symbol free => USES_ALLOC_FUNC
//};

assert with error "heap is too small!"              { USES_ALLOC_FUNC => size  of block heap >= 48 };
assert with error "heap size not a multiple of 8!"  { USES_ALLOC_FUNC => size  of block heap % 8 == 0 };
assert with error "heap not correctly aligned!"     { USES_ALLOC_FUNC => start of block heap % 8 == 0 };

//
// Explicit placement in FLASHn
//
place in FLASH1                             { section .FLASH1, section .FLASH1.* };
//
// FLASH Placement
//
place at start of FLASH                     { block vectors };                                      // Vector table section
place in FLASH with minimum size order      { block tdata_load,                                     // Thread-local-storage load image
                                              block exidx,                                          // ARM exception unwinding block
                                              block ctors,                                          // Constructors block
                                              block dtors,                                          // Destructors block
                                              readonly,                                             // Catch-all for readonly data (e.g. .rodata, .srodata)
                                              readexec                                              // Catch-all for (readonly) executable code (e.g. .text)
                                            };

//
// Explicit placement in RAMn
//
place in RAM1                               { section .RAM1, section .RAM1.* };
//
// RAM Placement
//
place at start of RAM                       { block vectors_ram };
place in RAM                                { section .fast, section .fast.* };                     // "ramfunc" section
place in RAM with auto order                { block tls,                                            // Thread-local-storage block
                                              readwrite,                                            // Catch-all for initialized/uninitialized data sections (e.g. .data, .noinit)
                                              zeroinit                                              // Catch-all for zero-initialized data sections (e.g. .bss)
                                            };
place in RAM                                { block heap };                                         // Heap reserved block
place at end of RAM                         { block stack };                                        // Stack reserved block at the end


keep { section .shellCommand };
