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| 1 /* | |
| 2 ***************************************************************************** | |
| 3 ** | |
| 4 | |
| 5 ** File : LinkerScript.ld | |
| 6 ** | |
| 7 ** Abstract : Linker script for STM32F746NGHx Device with | |
| 8 ** 1024KByte FLASH, 320KByte RAM | |
| 9 ** | |
| 10 ** Set heap size, stack size and stack location according | |
| 11 ** to application requirements. | |
| 12 ** | |
| 13 ** Set memory bank area and size if external memory is used. | |
| 14 ** | |
| 15 ** Target : STMicroelectronics STM32 | |
| 16 ** | |
| 17 ** | |
| 18 ** Distribution: The file is distributed as is, without any warranty | |
| 19 ** of any kind. | |
| 20 ** | |
| 21 ***************************************************************************** | |
| 22 ** @attention | |
| 23 ** | |
| 24 ** <h2><center>© COPYRIGHT(c) 2014 Ac6</center></h2> | |
| 25 ** | |
| 26 ** Redistribution and use in source and binary forms, with or without modificati
on, | |
| 27 ** are permitted provided that the following conditions are met: | |
| 28 ** 1. Redistributions of source code must retain the above copyright notice, | |
| 29 ** this list of conditions and the following disclaimer. | |
| 30 ** 2. Redistributions in binary form must reproduce the above copyright notice
, | |
| 31 ** this list of conditions and the following disclaimer in the documentatio
n | |
| 32 ** and/or other materials provided with the distribution. | |
| 33 ** 3. Neither the name of Ac6 nor the names of its contributors | |
| 34 ** may be used to endorse or promote products derived from this software | |
| 35 ** without specific prior written permission. | |
| 36 ** | |
| 37 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 38 ** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 39 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AR
E | |
| 40 ** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
| 41 ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 42 ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 43 ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 44 ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 45 ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 46 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 47 ** | |
| 48 ***************************************************************************** | |
| 49 */ | |
| 50 | |
| 51 /* Entry Point */ | |
| 52 ENTRY(Reset_Handler) | |
| 53 | |
| 54 /* Highest address of the user mode stack */ | |
| 55 _estack = 0x20050000; /* end of RAM */ | |
| 56 /* Generate a link error if heap and stack don't fit into RAM */ | |
| 57 _Min_Heap_Size = 0x200; /* required amount of heap */ | |
| 58 _Min_Stack_Size = 0x400; /* required amount of stack */ | |
| 59 | |
| 60 /* Specify the memory areas */ | |
| 61 MEMORY | |
| 62 { | |
| 63 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K | |
| 64 RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 320K | |
| 65 } | |
| 66 | |
| 67 /* Define output sections */ | |
| 68 SECTIONS | |
| 69 { | |
| 70 /* The startup code goes first into FLASH */ | |
| 71 .isr_vector : | |
| 72 { | |
| 73 . = ALIGN(4); | |
| 74 KEEP(*(.isr_vector)) /* Startup code */ | |
| 75 . = ALIGN(4); | |
| 76 } >FLASH | |
| 77 | |
| 78 /* The program code and other data goes into FLASH */ | |
| 79 .text : | |
| 80 { | |
| 81 . = ALIGN(4); | |
| 82 *(.text) /* .text sections (code) */ | |
| 83 *(.text*) /* .text* sections (code) */ | |
| 84 *(.glue_7) /* glue arm to thumb code */ | |
| 85 *(.glue_7t) /* glue thumb to arm code */ | |
| 86 *(.eh_frame) | |
| 87 | |
| 88 KEEP (*(.init)) | |
| 89 KEEP (*(.fini)) | |
| 90 | |
| 91 . = ALIGN(4); | |
| 92 _etext = .; /* define a global symbols at end of code */ | |
| 93 } >FLASH | |
| 94 | |
| 95 /* Constant data goes into FLASH */ | |
| 96 .rodata : | |
| 97 { | |
| 98 . = ALIGN(4); | |
| 99 *(.rodata) /* .rodata sections (constants, strings, etc.) */ | |
| 100 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ | |
| 101 . = ALIGN(4); | |
| 102 } >FLASH | |
| 103 | |
| 104 .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH | |
| 105 .ARM : { | |
| 106 __exidx_start = .; | |
| 107 *(.ARM.exidx*) | |
| 108 __exidx_end = .; | |
| 109 } >FLASH | |
| 110 | |
| 111 .preinit_array : | |
| 112 { | |
| 113 PROVIDE_HIDDEN (__preinit_array_start = .); | |
| 114 KEEP (*(.preinit_array*)) | |
| 115 PROVIDE_HIDDEN (__preinit_array_end = .); | |
| 116 } >FLASH | |
| 117 .init_array : | |
| 118 { | |
| 119 PROVIDE_HIDDEN (__init_array_start = .); | |
| 120 KEEP (*(SORT(.init_array.*))) | |
| 121 KEEP (*(.init_array*)) | |
| 122 PROVIDE_HIDDEN (__init_array_end = .); | |
| 123 } >FLASH | |
| 124 .fini_array : | |
| 125 { | |
| 126 PROVIDE_HIDDEN (__fini_array_start = .); | |
| 127 KEEP (*(SORT(.fini_array.*))) | |
| 128 KEEP (*(.fini_array*)) | |
| 129 PROVIDE_HIDDEN (__fini_array_end = .); | |
| 130 } >FLASH | |
| 131 | |
| 132 /* used by the startup to initialize data */ | |
| 133 _sidata = LOADADDR(.data); | |
| 134 | |
| 135 /* Initialized data sections goes into RAM, load LMA copy after code */ | |
| 136 .data : | |
| 137 { | |
| 138 . = ALIGN(4); | |
| 139 _sdata = .; /* create a global symbol at data start */ | |
| 140 *(.data) /* .data sections */ | |
| 141 *(.data*) /* .data* sections */ | |
| 142 | |
| 143 . = ALIGN(4); | |
| 144 _edata = .; /* define a global symbol at data end */ | |
| 145 } >RAM AT> FLASH | |
| 146 | |
| 147 | |
| 148 /* Uninitialized data section */ | |
| 149 . = ALIGN(4); | |
| 150 .bss : | |
| 151 { | |
| 152 /* This is used by the startup in order to initialize the .bss secion */ | |
| 153 _sbss = .; /* define a global symbol at bss start */ | |
| 154 __bss_start__ = _sbss; | |
| 155 *(.bss) | |
| 156 *(.bss*) | |
| 157 *(COMMON) | |
| 158 | |
| 159 . = ALIGN(4); | |
| 160 _ebss = .; /* define a global symbol at bss end */ | |
| 161 __bss_end__ = _ebss; | |
| 162 } >RAM | |
| 163 | |
| 164 /* User_heap_stack section, used to check that there is enough RAM left */ | |
| 165 ._user_heap_stack : | |
| 166 { | |
| 167 . = ALIGN(8); | |
| 168 PROVIDE ( end = . ); | |
| 169 PROVIDE ( _end = . ); | |
| 170 . = . + _Min_Heap_Size; | |
| 171 . = . + _Min_Stack_Size; | |
| 172 . = ALIGN(8); | |
| 173 } >RAM | |
| 174 | |
| 175 | |
| 176 | |
| 177 /* Remove information from the standard libraries */ | |
| 178 /DISCARD/ : | |
| 179 { | |
| 180 libc.a ( * ) | |
| 181 libm.a ( * ) | |
| 182 libgcc.a ( * ) | |
| 183 } | |
| 184 | |
| 185 .ARM.attributes 0 : { *(.ARM.attributes) } | |
| 186 } | |
| 187 | |
| 188 | |
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