Initial bootloader commit

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/*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 2014 - 2022 SEGGER Microcontroller GmbH *
* *
* www.segger.com Support: support@segger.com *
* *
**********************************************************************
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* All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or *
* without modification, are permitted provided that the following *
* condition is met: *
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* - Redistributions of source code must retain the above copyright *
* notice, this condition and the following disclaimer. *
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* 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 SEGGER Microcontroller 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 *
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**********************************************************************
-------------------------- END-OF-HEADER -----------------------------
File : EFR32MG24_Flash.icf
Purpose : EFR32MG24 linker script for application placement in Flash,
for use with the SEGGER Linker.
Maps : EFR32MG24A010F1024IM40, EFR32MG24A010F1024IM48, EFR32MG24A010F1536GM40,
EFR32MG24A010F1536GM48, EFR32MG24A010F1536IM40, EFR32MG24A010F1536IM48,
EFR32MG24A020F1024IM40, EFR32MG24A020F1024IM48, EFR32MG24A020F1536GM40,
EFR32MG24A020F1536GM48, EFR32MG24A020F1536IM40, EFR32MG24A020F1536IM48,
EFR32MG24A021F1024IM40, EFR32MG24A110F1024IM48, EFR32MG24A110F1536GM48,
EFR32MG24A111F1536GM48, EFR32MG24A120F1536GM48, EFR32MG24A121F1536GM48,
EFR32MG24A410F1536IM40, EFR32MG24A410F1536IM48, EFR32MG24A420F1536IM40,
EFR32MG24A420F1536IM48, EFR32MG24A610F1536IM40, EFR32MG24A620F1536IM40,
EFR32MG24B010F1024IM48, EFR32MG24B010F1536IM40, EFR32MG24B010F1536IM48,
EFR32MG24B020F1024IM48, EFR32MG24B020F1536IM40, EFR32MG24B020F1536IM48,
EFR32MG24B110F1536GM48, EFR32MG24B110F1536IM48, EFR32MG24B120F1536IM48,
EFR32MG24B210F1536IM48, EFR32MG24B220F1536IM48, EFR32MG24B310F1536IM48,
EFR32MG24B610F1536IM40
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 { };
//
// 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
#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