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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

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_NUCLEO_L496ZG_P/TOOLCHAIN_GCC_ARM/STM32L496XX.ld@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
158:1c57384330a6 
mbed library. Release version 164

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 158:1c57384330a6 1 /* Linker script to configure memory regions. */
AnnaBridge 171:3a7713b1edbc 2 /* 0x1AC resevered for vectors; 8-byte aligned = 0x1B0 (0x1AC + 0x4)*/
AnnaBridge 171:3a7713b1edbc 3
AnnaBridge 171:3a7713b1edbc 4 #if !defined(MBED_APP_START)
AnnaBridge 171:3a7713b1edbc 5 #define MBED_APP_START 0x08000000
AnnaBridge 171:3a7713b1edbc 6 #endif
AnnaBridge 171:3a7713b1edbc 7 #if !defined(MBED_APP_SIZE)
AnnaBridge 171:3a7713b1edbc 8 #define MBED_APP_SIZE 1024k
AnnaBridge 171:3a7713b1edbc 9 #endif
AnnaBridge 171:3a7713b1edbc 10
AnnaBridge 158:1c57384330a6 11 MEMORY
AnnaBridge 158:1c57384330a6 12 {
AnnaBridge 171:3a7713b1edbc 13 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
AnnaBridge 171:3a7713b1edbc 14 SRAM1 (rwx) : ORIGIN = 0x200001B0, LENGTH = 320k - (0x1AC +0x4)
AnnaBridge 158:1c57384330a6 15 }
AnnaBridge 158:1c57384330a6 16
AnnaBridge 158:1c57384330a6 17 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 158:1c57384330a6 18 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 158:1c57384330a6 19 * It references following symbols, which must be defined in code:
AnnaBridge 158:1c57384330a6 20 * Reset_Handler : Entry of reset handler
AnnaBridge 158:1c57384330a6 21 *
AnnaBridge 158:1c57384330a6 22 * It defines following symbols, which code can use without definition:
AnnaBridge 158:1c57384330a6 23 * __exidx_start
AnnaBridge 158:1c57384330a6 24 * __exidx_end
AnnaBridge 158:1c57384330a6 25 * __etext
AnnaBridge 158:1c57384330a6 26 * __data_start__
AnnaBridge 158:1c57384330a6 27 * __preinit_array_start
AnnaBridge 158:1c57384330a6 28 * __preinit_array_end
AnnaBridge 158:1c57384330a6 29 * __init_array_start
AnnaBridge 158:1c57384330a6 30 * __init_array_end
AnnaBridge 158:1c57384330a6 31 * __fini_array_start
AnnaBridge 158:1c57384330a6 32 * __fini_array_end
AnnaBridge 158:1c57384330a6 33 * __data_end__
AnnaBridge 158:1c57384330a6 34 * __bss_start__
AnnaBridge 158:1c57384330a6 35 * __bss_end__
AnnaBridge 158:1c57384330a6 36 * __end__
AnnaBridge 158:1c57384330a6 37 * end
AnnaBridge 158:1c57384330a6 38 * __HeapLimit
AnnaBridge 158:1c57384330a6 39 * __StackLimit
AnnaBridge 158:1c57384330a6 40 * __StackTop
AnnaBridge 158:1c57384330a6 41 * __stack
AnnaBridge 158:1c57384330a6 42 * _estack
AnnaBridge 158:1c57384330a6 43 */
AnnaBridge 158:1c57384330a6 44 ENTRY(Reset_Handler)
AnnaBridge 158:1c57384330a6 45
AnnaBridge 158:1c57384330a6 46 SECTIONS
AnnaBridge 158:1c57384330a6 47 {
AnnaBridge 158:1c57384330a6 48 .text :
AnnaBridge 158:1c57384330a6 49 {
AnnaBridge 158:1c57384330a6 50 KEEP(*(.isr_vector))
AnnaBridge 158:1c57384330a6 51 *(.text*)
AnnaBridge 158:1c57384330a6 52 KEEP(*(.init))
AnnaBridge 158:1c57384330a6 53 KEEP(*(.fini))
AnnaBridge 158:1c57384330a6 54
AnnaBridge 158:1c57384330a6 55 /* .ctors */
AnnaBridge 158:1c57384330a6 56 *crtbegin.o(.ctors)
AnnaBridge 158:1c57384330a6 57 *crtbegin?.o(.ctors)
AnnaBridge 158:1c57384330a6 58 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 158:1c57384330a6 59 *(SORT(.ctors.*))
AnnaBridge 158:1c57384330a6 60 *(.ctors)
AnnaBridge 158:1c57384330a6 61
AnnaBridge 158:1c57384330a6 62 /* .dtors */
AnnaBridge 158:1c57384330a6 63 *crtbegin.o(.dtors)
AnnaBridge 158:1c57384330a6 64 *crtbegin?.o(.dtors)
AnnaBridge 158:1c57384330a6 65 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 158:1c57384330a6 66 *(SORT(.dtors.*))
AnnaBridge 158:1c57384330a6 67 *(.dtors)
AnnaBridge 158:1c57384330a6 68
AnnaBridge 158:1c57384330a6 69 *(.rodata*)
AnnaBridge 158:1c57384330a6 70
AnnaBridge 158:1c57384330a6 71 KEEP(*(.eh_frame*))
AnnaBridge 158:1c57384330a6 72 } > FLASH
AnnaBridge 158:1c57384330a6 73
AnnaBridge 158:1c57384330a6 74 .ARM.extab :
AnnaBridge 158:1c57384330a6 75 {
AnnaBridge 158:1c57384330a6 76 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 158:1c57384330a6 77 } > FLASH
AnnaBridge 158:1c57384330a6 78
AnnaBridge 158:1c57384330a6 79 __exidx_start = .;
AnnaBridge 158:1c57384330a6 80 .ARM.exidx :
AnnaBridge 158:1c57384330a6 81 {
AnnaBridge 158:1c57384330a6 82 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 158:1c57384330a6 83 } > FLASH
AnnaBridge 158:1c57384330a6 84 __exidx_end = .;
AnnaBridge 158:1c57384330a6 85
AnnaBridge 158:1c57384330a6 86 __etext = .;
AnnaBridge 158:1c57384330a6 87 _sidata = .;
AnnaBridge 158:1c57384330a6 88
AnnaBridge 158:1c57384330a6 89 .data : AT (__etext)
AnnaBridge 158:1c57384330a6 90 {
AnnaBridge 158:1c57384330a6 91 __data_start__ = .;
AnnaBridge 158:1c57384330a6 92 _sdata = .;
AnnaBridge 158:1c57384330a6 93 *(vtable)
AnnaBridge 158:1c57384330a6 94 *(.data*)
AnnaBridge 158:1c57384330a6 95
AnnaBridge 171:3a7713b1edbc 96 . = ALIGN(8);
AnnaBridge 158:1c57384330a6 97 /* preinit data */
AnnaBridge 158:1c57384330a6 98 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 158:1c57384330a6 99 KEEP(*(.preinit_array))
AnnaBridge 158:1c57384330a6 100 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 158:1c57384330a6 101
AnnaBridge 171:3a7713b1edbc 102 . = ALIGN(8);
AnnaBridge 158:1c57384330a6 103 /* init data */
AnnaBridge 158:1c57384330a6 104 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 158:1c57384330a6 105 KEEP(*(SORT(.init_array.*)))
AnnaBridge 158:1c57384330a6 106 KEEP(*(.init_array))
AnnaBridge 158:1c57384330a6 107 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 158:1c57384330a6 108
AnnaBridge 158:1c57384330a6 109
AnnaBridge 171:3a7713b1edbc 110 . = ALIGN(8);
AnnaBridge 158:1c57384330a6 111 /* finit data */
AnnaBridge 158:1c57384330a6 112 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 158:1c57384330a6 113 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 158:1c57384330a6 114 KEEP(*(.fini_array))
AnnaBridge 158:1c57384330a6 115 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 158:1c57384330a6 116
AnnaBridge 158:1c57384330a6 117 KEEP(*(.jcr*))
AnnaBridge 171:3a7713b1edbc 118 . = ALIGN(8);
AnnaBridge 158:1c57384330a6 119 /* All data end */
AnnaBridge 158:1c57384330a6 120 __data_end__ = .;
AnnaBridge 158:1c57384330a6 121 _edata = .;
AnnaBridge 158:1c57384330a6 122
AnnaBridge 158:1c57384330a6 123 } > SRAM1
AnnaBridge 158:1c57384330a6 124
AnnaBridge 158:1c57384330a6 125 .bss :
AnnaBridge 158:1c57384330a6 126 {
AnnaBridge 171:3a7713b1edbc 127 . = ALIGN(8);
AnnaBridge 158:1c57384330a6 128 __bss_start__ = .;
AnnaBridge 158:1c57384330a6 129 _sbss = .;
AnnaBridge 158:1c57384330a6 130 *(.bss*)
AnnaBridge 158:1c57384330a6 131 *(COMMON)
AnnaBridge 171:3a7713b1edbc 132 . = ALIGN(8);
AnnaBridge 158:1c57384330a6 133 __bss_end__ = .;
AnnaBridge 158:1c57384330a6 134 _ebss = .;
AnnaBridge 158:1c57384330a6 135 } > SRAM1
AnnaBridge 158:1c57384330a6 136
AnnaBridge 158:1c57384330a6 137 .heap (COPY):
AnnaBridge 158:1c57384330a6 138 {
AnnaBridge 158:1c57384330a6 139 __end__ = .;
AnnaBridge 158:1c57384330a6 140 end = __end__;
AnnaBridge 158:1c57384330a6 141 *(.heap*)
AnnaBridge 158:1c57384330a6 142 __HeapLimit = .;
AnnaBridge 158:1c57384330a6 143 } > SRAM1
AnnaBridge 158:1c57384330a6 144
AnnaBridge 158:1c57384330a6 145 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 158:1c57384330a6 146 * used for linker to calculate size of stack sections, and assign
AnnaBridge 158:1c57384330a6 147 * values to stack symbols later */
AnnaBridge 158:1c57384330a6 148 .stack_dummy (COPY):
AnnaBridge 158:1c57384330a6 149 {
AnnaBridge 158:1c57384330a6 150 *(.stack*)
AnnaBridge 158:1c57384330a6 151 } > SRAM1
AnnaBridge 158:1c57384330a6 152
AnnaBridge 158:1c57384330a6 153 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 158:1c57384330a6 154 * size of stack_dummy section */
AnnaBridge 158:1c57384330a6 155 __StackTop = ORIGIN(SRAM1) + LENGTH(SRAM1);
AnnaBridge 158:1c57384330a6 156 _estack = __StackTop;
AnnaBridge 158:1c57384330a6 157 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 158:1c57384330a6 158 PROVIDE(__stack = __StackTop);
AnnaBridge 158:1c57384330a6 159
AnnaBridge 158:1c57384330a6 160 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 158:1c57384330a6 161 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 158:1c57384330a6 162 }