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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

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TARGET_NUCLEO_L4R5ZI/TOOLCHAIN_GCC_ARM/stm32l4r5xx.ld@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 171:3a7713b1edbc 1 #if !defined(MBED_APP_START)
AnnaBridge 171:3a7713b1edbc 2 #define MBED_APP_START 0x08000000
AnnaBridge 171:3a7713b1edbc 3 #endif
AnnaBridge 171:3a7713b1edbc 4
AnnaBridge 171:3a7713b1edbc 5 #if !defined(MBED_APP_SIZE)
AnnaBridge 171:3a7713b1edbc 6 #define MBED_APP_SIZE 2048K
AnnaBridge 171:3a7713b1edbc 7 #endif
AnnaBridge 171:3a7713b1edbc 8
AnnaBridge 171:3a7713b1edbc 9 /* Linker script to configure memory regions. */
AnnaBridge 171:3a7713b1edbc 10 /* Total: 111 vectors = 444 bytes (0x1BC) (+ 4 bytes for 8-byte alignment) to be reserved in RAM */
AnnaBridge 171:3a7713b1edbc 11 MEMORY
AnnaBridge 171:3a7713b1edbc 12 {
AnnaBridge 171:3a7713b1edbc 13 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
AnnaBridge 171:3a7713b1edbc 14 SRAM1 (rwx) : ORIGIN = 0x200001C0, LENGTH = 640k - 0x1C0
AnnaBridge 171:3a7713b1edbc 15 }
AnnaBridge 171:3a7713b1edbc 16
AnnaBridge 171:3a7713b1edbc 17 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 171:3a7713b1edbc 18 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 171:3a7713b1edbc 19 * It references following symbols, which must be defined in code:
AnnaBridge 171:3a7713b1edbc 20 * Reset_Handler : Entry of reset handler
AnnaBridge 171:3a7713b1edbc 21 *
AnnaBridge 171:3a7713b1edbc 22 * It defines following symbols, which code can use without definition:
AnnaBridge 171:3a7713b1edbc 23 * __exidx_start
AnnaBridge 171:3a7713b1edbc 24 * __exidx_end
AnnaBridge 171:3a7713b1edbc 25 * __etext
AnnaBridge 171:3a7713b1edbc 26 * __data_start__
AnnaBridge 171:3a7713b1edbc 27 * __preinit_array_start
AnnaBridge 171:3a7713b1edbc 28 * __preinit_array_end
AnnaBridge 171:3a7713b1edbc 29 * __init_array_start
AnnaBridge 171:3a7713b1edbc 30 * __init_array_end
AnnaBridge 171:3a7713b1edbc 31 * __fini_array_start
AnnaBridge 171:3a7713b1edbc 32 * __fini_array_end
AnnaBridge 171:3a7713b1edbc 33 * __data_end__
AnnaBridge 171:3a7713b1edbc 34 * __bss_start__
AnnaBridge 171:3a7713b1edbc 35 * __bss_end__
AnnaBridge 171:3a7713b1edbc 36 * __end__
AnnaBridge 171:3a7713b1edbc 37 * end
AnnaBridge 171:3a7713b1edbc 38 * __HeapLimit
AnnaBridge 171:3a7713b1edbc 39 * __StackLimit
AnnaBridge 171:3a7713b1edbc 40 * __StackTop
AnnaBridge 171:3a7713b1edbc 41 * __stack
AnnaBridge 171:3a7713b1edbc 42 * _estack
AnnaBridge 171:3a7713b1edbc 43 */
AnnaBridge 171:3a7713b1edbc 44 ENTRY(Reset_Handler)
AnnaBridge 171:3a7713b1edbc 45
AnnaBridge 171:3a7713b1edbc 46 SECTIONS
AnnaBridge 171:3a7713b1edbc 47 {
AnnaBridge 171:3a7713b1edbc 48 .text :
AnnaBridge 171:3a7713b1edbc 49 {
AnnaBridge 171:3a7713b1edbc 50 KEEP(*(.isr_vector))
AnnaBridge 171:3a7713b1edbc 51 *(.text*)
AnnaBridge 171:3a7713b1edbc 52 KEEP(*(.init))
AnnaBridge 171:3a7713b1edbc 53 KEEP(*(.fini))
AnnaBridge 171:3a7713b1edbc 54
AnnaBridge 171:3a7713b1edbc 55 /* .ctors */
AnnaBridge 171:3a7713b1edbc 56 *crtbegin.o(.ctors)
AnnaBridge 171:3a7713b1edbc 57 *crtbegin?.o(.ctors)
AnnaBridge 171:3a7713b1edbc 58 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 171:3a7713b1edbc 59 *(SORT(.ctors.*))
AnnaBridge 171:3a7713b1edbc 60 *(.ctors)
AnnaBridge 171:3a7713b1edbc 61
AnnaBridge 171:3a7713b1edbc 62 /* .dtors */
AnnaBridge 171:3a7713b1edbc 63 *crtbegin.o(.dtors)
AnnaBridge 171:3a7713b1edbc 64 *crtbegin?.o(.dtors)
AnnaBridge 171:3a7713b1edbc 65 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 171:3a7713b1edbc 66 *(SORT(.dtors.*))
AnnaBridge 171:3a7713b1edbc 67 *(.dtors)
AnnaBridge 171:3a7713b1edbc 68
AnnaBridge 171:3a7713b1edbc 69 *(.rodata*)
AnnaBridge 171:3a7713b1edbc 70
AnnaBridge 171:3a7713b1edbc 71 KEEP(*(.eh_frame*))
AnnaBridge 171:3a7713b1edbc 72 } > FLASH
AnnaBridge 171:3a7713b1edbc 73
AnnaBridge 171:3a7713b1edbc 74 .ARM.extab :
AnnaBridge 171:3a7713b1edbc 75 {
AnnaBridge 171:3a7713b1edbc 76 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 171:3a7713b1edbc 77 } > FLASH
AnnaBridge 171:3a7713b1edbc 78
AnnaBridge 171:3a7713b1edbc 79 __exidx_start = .;
AnnaBridge 171:3a7713b1edbc 80 .ARM.exidx :
AnnaBridge 171:3a7713b1edbc 81 {
AnnaBridge 171:3a7713b1edbc 82 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 171:3a7713b1edbc 83 } > FLASH
AnnaBridge 171:3a7713b1edbc 84 __exidx_end = .;
AnnaBridge 171:3a7713b1edbc 85
AnnaBridge 171:3a7713b1edbc 86 __etext = .;
AnnaBridge 171:3a7713b1edbc 87 _sidata = .;
AnnaBridge 171:3a7713b1edbc 88
AnnaBridge 171:3a7713b1edbc 89 .data : AT (__etext)
AnnaBridge 171:3a7713b1edbc 90 {
AnnaBridge 171:3a7713b1edbc 91 __data_start__ = .;
AnnaBridge 171:3a7713b1edbc 92 _sdata = .;
AnnaBridge 171:3a7713b1edbc 93 *(vtable)
AnnaBridge 171:3a7713b1edbc 94 *(.data*)
AnnaBridge 171:3a7713b1edbc 95
AnnaBridge 171:3a7713b1edbc 96 . = ALIGN(8);
AnnaBridge 171:3a7713b1edbc 97 /* preinit data */
AnnaBridge 171:3a7713b1edbc 98 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 171:3a7713b1edbc 99 KEEP(*(.preinit_array))
AnnaBridge 171:3a7713b1edbc 100 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 171:3a7713b1edbc 101
AnnaBridge 171:3a7713b1edbc 102 . = ALIGN(8);
AnnaBridge 171:3a7713b1edbc 103 /* init data */
AnnaBridge 171:3a7713b1edbc 104 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 171:3a7713b1edbc 105 KEEP(*(SORT(.init_array.*)))
AnnaBridge 171:3a7713b1edbc 106 KEEP(*(.init_array))
AnnaBridge 171:3a7713b1edbc 107 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 171:3a7713b1edbc 108
AnnaBridge 171:3a7713b1edbc 109
AnnaBridge 171:3a7713b1edbc 110 . = ALIGN(8);
AnnaBridge 171:3a7713b1edbc 111 /* finit data */
AnnaBridge 171:3a7713b1edbc 112 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 171:3a7713b1edbc 113 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 171:3a7713b1edbc 114 KEEP(*(.fini_array))
AnnaBridge 171:3a7713b1edbc 115 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 171:3a7713b1edbc 116
AnnaBridge 171:3a7713b1edbc 117 KEEP(*(.jcr*))
AnnaBridge 171:3a7713b1edbc 118 . = ALIGN(8);
AnnaBridge 171:3a7713b1edbc 119 /* All data end */
AnnaBridge 171:3a7713b1edbc 120 __data_end__ = .;
AnnaBridge 171:3a7713b1edbc 121 _edata = .;
AnnaBridge 171:3a7713b1edbc 122
AnnaBridge 171:3a7713b1edbc 123 } > SRAM1
AnnaBridge 171:3a7713b1edbc 124
AnnaBridge 171:3a7713b1edbc 125 .bss :
AnnaBridge 171:3a7713b1edbc 126 {
AnnaBridge 171:3a7713b1edbc 127 . = ALIGN(8);
AnnaBridge 171:3a7713b1edbc 128 __bss_start__ = .;
AnnaBridge 171:3a7713b1edbc 129 _sbss = .;
AnnaBridge 171:3a7713b1edbc 130 *(.bss*)
AnnaBridge 171:3a7713b1edbc 131 *(COMMON)
AnnaBridge 171:3a7713b1edbc 132 . = ALIGN(8);
AnnaBridge 171:3a7713b1edbc 133 __bss_end__ = .;
AnnaBridge 171:3a7713b1edbc 134 _ebss = .;
AnnaBridge 171:3a7713b1edbc 135 } > SRAM1
AnnaBridge 171:3a7713b1edbc 136
AnnaBridge 171:3a7713b1edbc 137 .heap (COPY):
AnnaBridge 171:3a7713b1edbc 138 {
AnnaBridge 171:3a7713b1edbc 139 __end__ = .;
AnnaBridge 171:3a7713b1edbc 140 end = __end__;
AnnaBridge 171:3a7713b1edbc 141 *(.heap*)
AnnaBridge 171:3a7713b1edbc 142 __HeapLimit = .;
AnnaBridge 171:3a7713b1edbc 143 } > SRAM1
AnnaBridge 171:3a7713b1edbc 144
AnnaBridge 171:3a7713b1edbc 145 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 171:3a7713b1edbc 146 * used for linker to calculate size of stack sections, and assign
AnnaBridge 171:3a7713b1edbc 147 * values to stack symbols later */
AnnaBridge 171:3a7713b1edbc 148 .stack_dummy (COPY):
AnnaBridge 171:3a7713b1edbc 149 {
AnnaBridge 171:3a7713b1edbc 150 *(.stack*)
AnnaBridge 171:3a7713b1edbc 151 } > SRAM1
AnnaBridge 171:3a7713b1edbc 152
AnnaBridge 171:3a7713b1edbc 153 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 171:3a7713b1edbc 154 * size of stack_dummy section */
AnnaBridge 171:3a7713b1edbc 155 __StackTop = ORIGIN(SRAM1) + LENGTH(SRAM1);
AnnaBridge 171:3a7713b1edbc 156 _estack = __StackTop;
AnnaBridge 171:3a7713b1edbc 157 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 171:3a7713b1edbc 158 PROVIDE(__stack = __StackTop);
AnnaBridge 171:3a7713b1edbc 159
AnnaBridge 171:3a7713b1edbc 160 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 171:3a7713b1edbc 161 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 171:3a7713b1edbc 162 }