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_UBLOX_C027/TOOLCHAIN_GCC_ARM/LPC1768.ld@143:86740a56073b, 2017-05-26 (annotated)

Committer:
AnnaBridge
Date:
Fri May 26 12:30:20 2017 +0100
Revision:
143:86740a56073b
Parent:
77:869cf507173a
Child:
145:64910690c574
Release 143 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 77:869cf507173a 1 /* Linker script for mbed LPC1768 */
emilmont 77:869cf507173a 2
emilmont 77:869cf507173a 3 /* Linker script to configure memory regions. */
emilmont 77:869cf507173a 4 MEMORY
emilmont 77:869cf507173a 5 {
emilmont 77:869cf507173a 6 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 512K
emilmont 77:869cf507173a 7 RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = (32K - 0xC8)
emilmont 77:869cf507173a 8
emilmont 77:869cf507173a 9 USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
emilmont 77:869cf507173a 10 ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
emilmont 77:869cf507173a 11 }
emilmont 77:869cf507173a 12
emilmont 77:869cf507173a 13 /* Linker script to place sections and symbol values. Should be used together
emilmont 77:869cf507173a 14 * with other linker script that defines memory regions FLASH and RAM.
emilmont 77:869cf507173a 15 * It references following symbols, which must be defined in code:
emilmont 77:869cf507173a 16 * Reset_Handler : Entry of reset handler
emilmont 77:869cf507173a 17 *
emilmont 77:869cf507173a 18 * It defines following symbols, which code can use without definition:
emilmont 77:869cf507173a 19 * __exidx_start
emilmont 77:869cf507173a 20 * __exidx_end
emilmont 77:869cf507173a 21 * __etext
emilmont 77:869cf507173a 22 * __data_start__
emilmont 77:869cf507173a 23 * __preinit_array_start
emilmont 77:869cf507173a 24 * __preinit_array_end
emilmont 77:869cf507173a 25 * __init_array_start
emilmont 77:869cf507173a 26 * __init_array_end
emilmont 77:869cf507173a 27 * __fini_array_start
emilmont 77:869cf507173a 28 * __fini_array_end
emilmont 77:869cf507173a 29 * __data_end__
emilmont 77:869cf507173a 30 * __bss_start__
emilmont 77:869cf507173a 31 * __bss_end__
emilmont 77:869cf507173a 32 * __end__
emilmont 77:869cf507173a 33 * end
emilmont 77:869cf507173a 34 * __HeapLimit
emilmont 77:869cf507173a 35 * __StackLimit
emilmont 77:869cf507173a 36 * __StackTop
emilmont 77:869cf507173a 37 * __stack
emilmont 77:869cf507173a 38 */
emilmont 77:869cf507173a 39 ENTRY(Reset_Handler)
emilmont 77:869cf507173a 40
emilmont 77:869cf507173a 41 SECTIONS
emilmont 77:869cf507173a 42 {
emilmont 77:869cf507173a 43 .text :
emilmont 77:869cf507173a 44 {
emilmont 77:869cf507173a 45 KEEP(*(.isr_vector))
emilmont 77:869cf507173a 46 *(.text*)
emilmont 77:869cf507173a 47
emilmont 77:869cf507173a 48 KEEP(*(.init))
emilmont 77:869cf507173a 49 KEEP(*(.fini))
emilmont 77:869cf507173a 50
emilmont 77:869cf507173a 51 /* .ctors */
emilmont 77:869cf507173a 52 *crtbegin.o(.ctors)
emilmont 77:869cf507173a 53 *crtbegin?.o(.ctors)
emilmont 77:869cf507173a 54 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
emilmont 77:869cf507173a 55 *(SORT(.ctors.*))
emilmont 77:869cf507173a 56 *(.ctors)
emilmont 77:869cf507173a 57
emilmont 77:869cf507173a 58 /* .dtors */
emilmont 77:869cf507173a 59 *crtbegin.o(.dtors)
emilmont 77:869cf507173a 60 *crtbegin?.o(.dtors)
emilmont 77:869cf507173a 61 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
emilmont 77:869cf507173a 62 *(SORT(.dtors.*))
emilmont 77:869cf507173a 63 *(.dtors)
emilmont 77:869cf507173a 64
emilmont 77:869cf507173a 65 *(.rodata*)
emilmont 77:869cf507173a 66
emilmont 77:869cf507173a 67 KEEP(*(.eh_frame*))
emilmont 77:869cf507173a 68 } > FLASH
emilmont 77:869cf507173a 69
emilmont 77:869cf507173a 70 .ARM.extab :
emilmont 77:869cf507173a 71 {
emilmont 77:869cf507173a 72 *(.ARM.extab* .gnu.linkonce.armextab.*)
emilmont 77:869cf507173a 73 } > FLASH
emilmont 77:869cf507173a 74
emilmont 77:869cf507173a 75 __exidx_start = .;
emilmont 77:869cf507173a 76 .ARM.exidx :
emilmont 77:869cf507173a 77 {
emilmont 77:869cf507173a 78 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
emilmont 77:869cf507173a 79 } > FLASH
emilmont 77:869cf507173a 80 __exidx_end = .;
emilmont 77:869cf507173a 81
emilmont 77:869cf507173a 82 __etext = .;
emilmont 77:869cf507173a 83
emilmont 77:869cf507173a 84 .data : AT (__etext)
emilmont 77:869cf507173a 85 {
emilmont 77:869cf507173a 86 __data_start__ = .;
emilmont 77:869cf507173a 87 Image$$RW_IRAM1$$Base = .;
emilmont 77:869cf507173a 88 *(vtable)
emilmont 77:869cf507173a 89 *(.data*)
emilmont 77:869cf507173a 90
emilmont 77:869cf507173a 91 . = ALIGN(4);
emilmont 77:869cf507173a 92 /* preinit data */
emilmont 77:869cf507173a 93 PROVIDE (__preinit_array_start = .);
emilmont 77:869cf507173a 94 KEEP(*(.preinit_array))
emilmont 77:869cf507173a 95 PROVIDE (__preinit_array_end = .);
emilmont 77:869cf507173a 96
emilmont 77:869cf507173a 97 . = ALIGN(4);
emilmont 77:869cf507173a 98 /* init data */
emilmont 77:869cf507173a 99 PROVIDE (__init_array_start = .);
emilmont 77:869cf507173a 100 KEEP(*(SORT(.init_array.*)))
emilmont 77:869cf507173a 101 KEEP(*(.init_array))
emilmont 77:869cf507173a 102 PROVIDE (__init_array_end = .);
emilmont 77:869cf507173a 103
emilmont 77:869cf507173a 104
emilmont 77:869cf507173a 105 . = ALIGN(4);
emilmont 77:869cf507173a 106 /* finit data */
emilmont 77:869cf507173a 107 PROVIDE (__fini_array_start = .);
emilmont 77:869cf507173a 108 KEEP(*(SORT(.fini_array.*)))
emilmont 77:869cf507173a 109 KEEP(*(.fini_array))
emilmont 77:869cf507173a 110 PROVIDE (__fini_array_end = .);
emilmont 77:869cf507173a 111
emilmont 77:869cf507173a 112 . = ALIGN(4);
emilmont 77:869cf507173a 113 /* All data end */
emilmont 77:869cf507173a 114 __data_end__ = .;
emilmont 77:869cf507173a 115
emilmont 77:869cf507173a 116 } > RAM
emilmont 77:869cf507173a 117
emilmont 77:869cf507173a 118
emilmont 77:869cf507173a 119 .bss :
emilmont 77:869cf507173a 120 {
emilmont 77:869cf507173a 121 __bss_start__ = .;
emilmont 77:869cf507173a 122 *(.bss*)
emilmont 77:869cf507173a 123 *(COMMON)
emilmont 77:869cf507173a 124 __bss_end__ = .;
emilmont 77:869cf507173a 125 Image$$RW_IRAM1$$ZI$$Limit = . ;
emilmont 77:869cf507173a 126 } > RAM
emilmont 77:869cf507173a 127
emilmont 77:869cf507173a 128
emilmont 77:869cf507173a 129 .heap :
emilmont 77:869cf507173a 130 {
emilmont 77:869cf507173a 131 __end__ = .;
emilmont 77:869cf507173a 132 end = __end__;
emilmont 77:869cf507173a 133 *(.heap*)
emilmont 77:869cf507173a 134 __HeapLimit = .;
emilmont 77:869cf507173a 135 } > RAM
emilmont 77:869cf507173a 136
emilmont 77:869cf507173a 137 /* .stack_dummy section doesn't contains any symbols. It is only
emilmont 77:869cf507173a 138 * used for linker to calculate size of stack sections, and assign
emilmont 77:869cf507173a 139 * values to stack symbols later */
emilmont 77:869cf507173a 140 .stack_dummy :
emilmont 77:869cf507173a 141 {
emilmont 77:869cf507173a 142 *(.stack)
emilmont 77:869cf507173a 143 } > RAM
emilmont 77:869cf507173a 144
emilmont 77:869cf507173a 145 /* Set stack top to end of RAM, and stack limit move down by
emilmont 77:869cf507173a 146 * size of stack_dummy section */
emilmont 77:869cf507173a 147 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
emilmont 77:869cf507173a 148 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
emilmont 77:869cf507173a 149 PROVIDE(__stack = __StackTop);
emilmont 77:869cf507173a 150
emilmont 77:869cf507173a 151 /* Check if data + heap + stack exceeds RAM limit */
emilmont 77:869cf507173a 152 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
emilmont 77:869cf507173a 153
emilmont 77:869cf507173a 154
emilmont 77:869cf507173a 155 /* Code can explicitly ask for data to be
emilmont 77:869cf507173a 156 placed in these higher RAM banks where
emilmont 77:869cf507173a 157 they will be left uninitialized.
emilmont 77:869cf507173a 158 */
emilmont 77:869cf507173a 159 .AHBSRAM0 (NOLOAD):
emilmont 77:869cf507173a 160 {
emilmont 77:869cf507173a 161 Image$$RW_IRAM2$$Base = . ;
emilmont 77:869cf507173a 162 *(AHBSRAM0)
emilmont 77:869cf507173a 163 Image$$RW_IRAM2$$ZI$$Limit = .;
emilmont 77:869cf507173a 164 } > USB_RAM
emilmont 77:869cf507173a 165
emilmont 77:869cf507173a 166 .AHBSRAM1 (NOLOAD):
emilmont 77:869cf507173a 167 {
emilmont 77:869cf507173a 168 Image$$RW_IRAM3$$Base = . ;
emilmont 77:869cf507173a 169 *(AHBSRAM1)
emilmont 77:869cf507173a 170 Image$$RW_IRAM3$$ZI$$Limit = .;
emilmont 77:869cf507173a 171 } > ETH_RAM
emilmont 77:869cf507173a 172 }