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_B96B_F446VE/TOOLCHAIN_GCC_ARM/STM32F446XE.ld@169:a7c7b631e539, 2018-06-22 (annotated)

Committer:
Anna Bridge
Date:
Fri Jun 22 15:38:59 2018 +0100
Revision:
169:a7c7b631e539
Parent:
156:ff21514d8981
Child:
171:3a7713b1edbc
mbed library. Release version 162

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1 #if !defined(MBED_APP_START)
AnnaBridge 156:ff21514d8981 2 #define MBED_APP_START 0x08000000
AnnaBridge 156:ff21514d8981 3 #endif
AnnaBridge 156:ff21514d8981 4
AnnaBridge 156:ff21514d8981 5 #if !defined(MBED_APP_SIZE)
AnnaBridge 156:ff21514d8981 6 #define MBED_APP_SIZE 512K
AnnaBridge 156:ff21514d8981 7 #endif
AnnaBridge 156:ff21514d8981 8
AnnaBridge 156:ff21514d8981 9 /* Linker script to configure memory regions. */
AnnaBridge 156:ff21514d8981 10 MEMORY
AnnaBridge 156:ff21514d8981 11 {
AnnaBridge 156:ff21514d8981 12 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
AnnaBridge 156:ff21514d8981 13 RAM (rwx) : ORIGIN = 0x200001C4, LENGTH = 128k - 0x1C4
AnnaBridge 156:ff21514d8981 14 }
AnnaBridge 156:ff21514d8981 15
AnnaBridge 156:ff21514d8981 16 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 17 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 18 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 19 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 20 *
AnnaBridge 156:ff21514d8981 21 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 22 * __exidx_start
AnnaBridge 156:ff21514d8981 23 * __exidx_end
AnnaBridge 156:ff21514d8981 24 * __etext
AnnaBridge 156:ff21514d8981 25 * __data_start__
AnnaBridge 156:ff21514d8981 26 * __preinit_array_start
AnnaBridge 156:ff21514d8981 27 * __preinit_array_end
AnnaBridge 156:ff21514d8981 28 * __init_array_start
AnnaBridge 156:ff21514d8981 29 * __init_array_end
AnnaBridge 156:ff21514d8981 30 * __fini_array_start
AnnaBridge 156:ff21514d8981 31 * __fini_array_end
AnnaBridge 156:ff21514d8981 32 * __data_end__
AnnaBridge 156:ff21514d8981 33 * __bss_start__
AnnaBridge 156:ff21514d8981 34 * __bss_end__
AnnaBridge 156:ff21514d8981 35 * __end__
AnnaBridge 156:ff21514d8981 36 * end
AnnaBridge 156:ff21514d8981 37 * __HeapLimit
AnnaBridge 156:ff21514d8981 38 * __StackLimit
AnnaBridge 156:ff21514d8981 39 * __StackTop
AnnaBridge 156:ff21514d8981 40 * __stack
AnnaBridge 156:ff21514d8981 41 * _estack
AnnaBridge 156:ff21514d8981 42 */
AnnaBridge 156:ff21514d8981 43 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 44
AnnaBridge 156:ff21514d8981 45 SECTIONS
AnnaBridge 156:ff21514d8981 46 {
AnnaBridge 156:ff21514d8981 47 .text :
AnnaBridge 156:ff21514d8981 48 {
AnnaBridge 156:ff21514d8981 49 KEEP(*(.isr_vector))
AnnaBridge 156:ff21514d8981 50 *(.text*)
AnnaBridge 156:ff21514d8981 51 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 52 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 53
AnnaBridge 156:ff21514d8981 54 /* .ctors */
AnnaBridge 156:ff21514d8981 55 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 56 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 57 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 58 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 59 *(.ctors)
AnnaBridge 156:ff21514d8981 60
AnnaBridge 156:ff21514d8981 61 /* .dtors */
AnnaBridge 156:ff21514d8981 62 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 63 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 64 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 65 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 66 *(.dtors)
AnnaBridge 156:ff21514d8981 67
AnnaBridge 156:ff21514d8981 68 *(.rodata*)
AnnaBridge 156:ff21514d8981 69
AnnaBridge 156:ff21514d8981 70 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 71 } > FLASH
AnnaBridge 156:ff21514d8981 72
AnnaBridge 156:ff21514d8981 73 .ARM.extab :
AnnaBridge 156:ff21514d8981 74 {
AnnaBridge 156:ff21514d8981 75 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 76 } > FLASH
AnnaBridge 156:ff21514d8981 77
AnnaBridge 156:ff21514d8981 78 __exidx_start = .;
AnnaBridge 156:ff21514d8981 79 .ARM.exidx :
AnnaBridge 156:ff21514d8981 80 {
AnnaBridge 156:ff21514d8981 81 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 82 } > FLASH
AnnaBridge 156:ff21514d8981 83 __exidx_end = .;
AnnaBridge 156:ff21514d8981 84
AnnaBridge 156:ff21514d8981 85 __etext = .;
AnnaBridge 156:ff21514d8981 86 _sidata = .;
AnnaBridge 156:ff21514d8981 87
AnnaBridge 156:ff21514d8981 88 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 89 {
AnnaBridge 156:ff21514d8981 90 __data_start__ = .;
AnnaBridge 156:ff21514d8981 91 _sdata = .;
AnnaBridge 156:ff21514d8981 92 *(vtable)
AnnaBridge 156:ff21514d8981 93 *(.data*)
AnnaBridge 156:ff21514d8981 94
AnnaBridge 156:ff21514d8981 95 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 96 /* preinit data */
AnnaBridge 156:ff21514d8981 97 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 98 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 99 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 100
AnnaBridge 156:ff21514d8981 101 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 102 /* init data */
AnnaBridge 156:ff21514d8981 103 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 156:ff21514d8981 104 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 105 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 106 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 156:ff21514d8981 107
AnnaBridge 156:ff21514d8981 108
AnnaBridge 156:ff21514d8981 109 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 110 /* finit data */
AnnaBridge 156:ff21514d8981 111 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 112 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 113 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 114 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 115
AnnaBridge 156:ff21514d8981 116 KEEP(*(.jcr*))
AnnaBridge 156:ff21514d8981 117 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 118 /* All data end */
AnnaBridge 156:ff21514d8981 119 __data_end__ = .;
AnnaBridge 156:ff21514d8981 120 _edata = .;
AnnaBridge 156:ff21514d8981 121
AnnaBridge 156:ff21514d8981 122 } > RAM
AnnaBridge 156:ff21514d8981 123
AnnaBridge 156:ff21514d8981 124 .bss :
AnnaBridge 156:ff21514d8981 125 {
AnnaBridge 156:ff21514d8981 126 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 127 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 128 _sbss = .;
AnnaBridge 156:ff21514d8981 129 *(.bss*)
AnnaBridge 156:ff21514d8981 130 *(COMMON)
AnnaBridge 156:ff21514d8981 131 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 132 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 133 _ebss = .;
AnnaBridge 156:ff21514d8981 134 } > RAM
AnnaBridge 156:ff21514d8981 135
AnnaBridge 156:ff21514d8981 136 .heap (COPY):
AnnaBridge 156:ff21514d8981 137 {
AnnaBridge 156:ff21514d8981 138 __end__ = .;
AnnaBridge 156:ff21514d8981 139 end = __end__;
AnnaBridge 156:ff21514d8981 140 *(.heap*)
AnnaBridge 156:ff21514d8981 141 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 142 } > RAM
AnnaBridge 156:ff21514d8981 143
AnnaBridge 156:ff21514d8981 144 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 145 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 146 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 147 .stack_dummy (COPY):
AnnaBridge 156:ff21514d8981 148 {
AnnaBridge 156:ff21514d8981 149 *(.stack*)
AnnaBridge 156:ff21514d8981 150 } > RAM
AnnaBridge 156:ff21514d8981 151
AnnaBridge 156:ff21514d8981 152 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 153 * size of stack_dummy section */
AnnaBridge 156:ff21514d8981 154 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 156:ff21514d8981 155 _estack = __StackTop;
AnnaBridge 156:ff21514d8981 156 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 157 PROVIDE(__stack = __StackTop);
AnnaBridge 156:ff21514d8981 158
AnnaBridge 156:ff21514d8981 159 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 156:ff21514d8981 160 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 156:ff21514d8981 161 }