mbed official / mbed

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

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

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_F756ZG/TOOLCHAIN_GCC_ARM/STM32F756xG.ld@156:ff21514d8981, 2017-11-08 (annotated)

Committer:
AnnaBridge
Date:
Wed Nov 08 17:18:06 2017 +0000
Revision:
156:ff21514d8981
Child:
171:3a7713b1edbc
Reverting back to release 154 of the mbed library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1 /* Linker script to configure memory regions. */
AnnaBridge 156:ff21514d8981 2 MEMORY
AnnaBridge 156:ff21514d8981 3 {
AnnaBridge 156:ff21514d8981 4 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
AnnaBridge 156:ff21514d8981 5 RAM (rwx) : ORIGIN = 0x200001C8, LENGTH = 320K - 0x1C8
AnnaBridge 156:ff21514d8981 6 }
AnnaBridge 156:ff21514d8981 7
AnnaBridge 156:ff21514d8981 8 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 9 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 10 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 11 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 12 *
AnnaBridge 156:ff21514d8981 13 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 14 * __exidx_start
AnnaBridge 156:ff21514d8981 15 * __exidx_end
AnnaBridge 156:ff21514d8981 16 * __etext
AnnaBridge 156:ff21514d8981 17 * __data_start__
AnnaBridge 156:ff21514d8981 18 * __preinit_array_start
AnnaBridge 156:ff21514d8981 19 * __preinit_array_end
AnnaBridge 156:ff21514d8981 20 * __init_array_start
AnnaBridge 156:ff21514d8981 21 * __init_array_end
AnnaBridge 156:ff21514d8981 22 * __fini_array_start
AnnaBridge 156:ff21514d8981 23 * __fini_array_end
AnnaBridge 156:ff21514d8981 24 * __data_end__
AnnaBridge 156:ff21514d8981 25 * __bss_start__
AnnaBridge 156:ff21514d8981 26 * __bss_end__
AnnaBridge 156:ff21514d8981 27 * __end__
AnnaBridge 156:ff21514d8981 28 * end
AnnaBridge 156:ff21514d8981 29 * __HeapLimit
AnnaBridge 156:ff21514d8981 30 * __StackLimit
AnnaBridge 156:ff21514d8981 31 * __StackTop
AnnaBridge 156:ff21514d8981 32 * __stack
AnnaBridge 156:ff21514d8981 33 * _estack
AnnaBridge 156:ff21514d8981 34 */
AnnaBridge 156:ff21514d8981 35 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 36
AnnaBridge 156:ff21514d8981 37 SECTIONS
AnnaBridge 156:ff21514d8981 38 {
AnnaBridge 156:ff21514d8981 39 .text :
AnnaBridge 156:ff21514d8981 40 {
AnnaBridge 156:ff21514d8981 41 KEEP(*(.isr_vector))
AnnaBridge 156:ff21514d8981 42 *(.text*)
AnnaBridge 156:ff21514d8981 43 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 44 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 45
AnnaBridge 156:ff21514d8981 46 /* .ctors */
AnnaBridge 156:ff21514d8981 47 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 48 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 49 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 50 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 51 *(.ctors)
AnnaBridge 156:ff21514d8981 52
AnnaBridge 156:ff21514d8981 53 /* .dtors */
AnnaBridge 156:ff21514d8981 54 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 55 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 57 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 58 *(.dtors)
AnnaBridge 156:ff21514d8981 59
AnnaBridge 156:ff21514d8981 60 *(.rodata*)
AnnaBridge 156:ff21514d8981 61
AnnaBridge 156:ff21514d8981 62 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 63 } > FLASH
AnnaBridge 156:ff21514d8981 64
AnnaBridge 156:ff21514d8981 65 .ARM.extab :
AnnaBridge 156:ff21514d8981 66 {
AnnaBridge 156:ff21514d8981 67 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 68 } > FLASH
AnnaBridge 156:ff21514d8981 69
AnnaBridge 156:ff21514d8981 70 __exidx_start = .;
AnnaBridge 156:ff21514d8981 71 .ARM.exidx :
AnnaBridge 156:ff21514d8981 72 {
AnnaBridge 156:ff21514d8981 73 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 74 } > FLASH
AnnaBridge 156:ff21514d8981 75 __exidx_end = .;
AnnaBridge 156:ff21514d8981 76
AnnaBridge 156:ff21514d8981 77 __etext = .;
AnnaBridge 156:ff21514d8981 78 _sidata = .;
AnnaBridge 156:ff21514d8981 79
AnnaBridge 156:ff21514d8981 80 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 81 {
AnnaBridge 156:ff21514d8981 82 __data_start__ = .;
AnnaBridge 156:ff21514d8981 83 _sdata = .;
AnnaBridge 156:ff21514d8981 84 *(vtable)
AnnaBridge 156:ff21514d8981 85 *(.data*)
AnnaBridge 156:ff21514d8981 86
AnnaBridge 156:ff21514d8981 87 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 88 /* preinit data */
AnnaBridge 156:ff21514d8981 89 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 90 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 91 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 92
AnnaBridge 156:ff21514d8981 93 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 94 /* init data */
AnnaBridge 156:ff21514d8981 95 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 156:ff21514d8981 96 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 97 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 98 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 156:ff21514d8981 99
AnnaBridge 156:ff21514d8981 100
AnnaBridge 156:ff21514d8981 101 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 102 /* finit data */
AnnaBridge 156:ff21514d8981 103 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 104 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 105 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 106 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 107
AnnaBridge 156:ff21514d8981 108 KEEP(*(.jcr*))
AnnaBridge 156:ff21514d8981 109 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 110 /* All data end */
AnnaBridge 156:ff21514d8981 111 __data_end__ = .;
AnnaBridge 156:ff21514d8981 112 _edata = .;
AnnaBridge 156:ff21514d8981 113
AnnaBridge 156:ff21514d8981 114 } > RAM
AnnaBridge 156:ff21514d8981 115
AnnaBridge 156:ff21514d8981 116 .bss :
AnnaBridge 156:ff21514d8981 117 {
AnnaBridge 156:ff21514d8981 118 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 119 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 120 _sbss = .;
AnnaBridge 156:ff21514d8981 121 *(.bss*)
AnnaBridge 156:ff21514d8981 122 *(COMMON)
AnnaBridge 156:ff21514d8981 123 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 124 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 125 _ebss = .;
AnnaBridge 156:ff21514d8981 126 } > RAM
AnnaBridge 156:ff21514d8981 127
AnnaBridge 156:ff21514d8981 128 .heap (COPY):
AnnaBridge 156:ff21514d8981 129 {
AnnaBridge 156:ff21514d8981 130 __end__ = .;
AnnaBridge 156:ff21514d8981 131 end = __end__;
AnnaBridge 156:ff21514d8981 132 *(.heap*)
AnnaBridge 156:ff21514d8981 133 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 134 } > RAM
AnnaBridge 156:ff21514d8981 135
AnnaBridge 156:ff21514d8981 136 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 137 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 138 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 139 .stack_dummy (COPY):
AnnaBridge 156:ff21514d8981 140 {
AnnaBridge 156:ff21514d8981 141 *(.stack*)
AnnaBridge 156:ff21514d8981 142 } > RAM
AnnaBridge 156:ff21514d8981 143
AnnaBridge 156:ff21514d8981 144 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 145 * size of stack_dummy section */
AnnaBridge 156:ff21514d8981 146 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 156:ff21514d8981 147 _estack = __StackTop;
AnnaBridge 156:ff21514d8981 148 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 149 PROVIDE(__stack = __StackTop);
AnnaBridge 156:ff21514d8981 150
AnnaBridge 156:ff21514d8981 151 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 156:ff21514d8981 152 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 156:ff21514d8981 153 }