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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_LPC1769/TOOLCHAIN_GCC_ARM/LPC1768.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 157:e7ca05fa8600 1 /* Linker script for mbed LPC1768 */
AnnaBridge 157:e7ca05fa8600 2 #if !defined(MBED_APP_START)
AnnaBridge 157:e7ca05fa8600 3 #define MBED_APP_START 0x00000000
AnnaBridge 157:e7ca05fa8600 4 #endif
AnnaBridge 157:e7ca05fa8600 5
AnnaBridge 157:e7ca05fa8600 6 #if !defined(MBED_APP_SIZE)
AnnaBridge 157:e7ca05fa8600 7 #define MBED_APP_SIZE 512K
AnnaBridge 157:e7ca05fa8600 8 #endif
AnnaBridge 157:e7ca05fa8600 9 /* Linker script to configure memory regions. */
AnnaBridge 157:e7ca05fa8600 10 MEMORY
AnnaBridge 157:e7ca05fa8600 11 {
AnnaBridge 157:e7ca05fa8600 12 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
AnnaBridge 157:e7ca05fa8600 13 RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = (32K - 0xC8 - 32) /* topmost 32 bytes used by IAP functions */
AnnaBridge 157:e7ca05fa8600 14
AnnaBridge 157:e7ca05fa8600 15 USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
AnnaBridge 157:e7ca05fa8600 16 ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
AnnaBridge 157:e7ca05fa8600 17 }
AnnaBridge 157:e7ca05fa8600 18
AnnaBridge 157:e7ca05fa8600 19 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 157:e7ca05fa8600 20 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 157:e7ca05fa8600 21 * It references following symbols, which must be defined in code:
AnnaBridge 157:e7ca05fa8600 22 * Reset_Handler : Entry of reset handler
AnnaBridge 157:e7ca05fa8600 23 *
AnnaBridge 157:e7ca05fa8600 24 * It defines following symbols, which code can use without definition:
AnnaBridge 157:e7ca05fa8600 25 * __exidx_start
AnnaBridge 157:e7ca05fa8600 26 * __exidx_end
AnnaBridge 157:e7ca05fa8600 27 * __etext
AnnaBridge 157:e7ca05fa8600 28 * __data_start__
AnnaBridge 157:e7ca05fa8600 29 * __preinit_array_start
AnnaBridge 157:e7ca05fa8600 30 * __preinit_array_end
AnnaBridge 157:e7ca05fa8600 31 * __init_array_start
AnnaBridge 157:e7ca05fa8600 32 * __init_array_end
AnnaBridge 157:e7ca05fa8600 33 * __fini_array_start
AnnaBridge 157:e7ca05fa8600 34 * __fini_array_end
AnnaBridge 157:e7ca05fa8600 35 * __data_end__
AnnaBridge 157:e7ca05fa8600 36 * __bss_start__
AnnaBridge 157:e7ca05fa8600 37 * __bss_end__
AnnaBridge 157:e7ca05fa8600 38 * __end__
AnnaBridge 157:e7ca05fa8600 39 * end
AnnaBridge 157:e7ca05fa8600 40 * __HeapLimit
AnnaBridge 157:e7ca05fa8600 41 * __StackLimit
AnnaBridge 157:e7ca05fa8600 42 * __StackTop
AnnaBridge 157:e7ca05fa8600 43 * __stack
AnnaBridge 157:e7ca05fa8600 44 */
AnnaBridge 157:e7ca05fa8600 45 ENTRY(Reset_Handler)
AnnaBridge 157:e7ca05fa8600 46
AnnaBridge 157:e7ca05fa8600 47 SECTIONS
AnnaBridge 157:e7ca05fa8600 48 {
AnnaBridge 157:e7ca05fa8600 49 .text :
AnnaBridge 157:e7ca05fa8600 50 {
AnnaBridge 157:e7ca05fa8600 51 KEEP(*(.isr_vector))
AnnaBridge 157:e7ca05fa8600 52 /* Code Read Protect data */
AnnaBridge 157:e7ca05fa8600 53 . = 0x000002FC ;
AnnaBridge 157:e7ca05fa8600 54 KEEP(*(.CRPSection))
AnnaBridge 157:e7ca05fa8600 55 /* End of Code Read Protect */
AnnaBridge 157:e7ca05fa8600 56 *(.text*)
AnnaBridge 157:e7ca05fa8600 57
AnnaBridge 157:e7ca05fa8600 58 KEEP(*(.init))
AnnaBridge 157:e7ca05fa8600 59 KEEP(*(.fini))
AnnaBridge 157:e7ca05fa8600 60
AnnaBridge 157:e7ca05fa8600 61 /* .ctors */
AnnaBridge 157:e7ca05fa8600 62 *crtbegin.o(.ctors)
AnnaBridge 157:e7ca05fa8600 63 *crtbegin?.o(.ctors)
AnnaBridge 157:e7ca05fa8600 64 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 157:e7ca05fa8600 65 *(SORT(.ctors.*))
AnnaBridge 157:e7ca05fa8600 66 *(.ctors)
AnnaBridge 157:e7ca05fa8600 67
AnnaBridge 157:e7ca05fa8600 68 /* .dtors */
AnnaBridge 157:e7ca05fa8600 69 *crtbegin.o(.dtors)
AnnaBridge 157:e7ca05fa8600 70 *crtbegin?.o(.dtors)
AnnaBridge 157:e7ca05fa8600 71 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 157:e7ca05fa8600 72 *(SORT(.dtors.*))
AnnaBridge 157:e7ca05fa8600 73 *(.dtors)
AnnaBridge 157:e7ca05fa8600 74
AnnaBridge 157:e7ca05fa8600 75 *(.rodata*)
AnnaBridge 157:e7ca05fa8600 76
AnnaBridge 157:e7ca05fa8600 77 KEEP(*(.eh_frame*))
AnnaBridge 157:e7ca05fa8600 78
AnnaBridge 157:e7ca05fa8600 79
AnnaBridge 157:e7ca05fa8600 80 } > FLASH
AnnaBridge 157:e7ca05fa8600 81
AnnaBridge 157:e7ca05fa8600 82 .ARM.extab :
AnnaBridge 157:e7ca05fa8600 83 {
AnnaBridge 157:e7ca05fa8600 84 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 157:e7ca05fa8600 85 } > FLASH
AnnaBridge 157:e7ca05fa8600 86
AnnaBridge 157:e7ca05fa8600 87 __exidx_start = .;
AnnaBridge 157:e7ca05fa8600 88 .ARM.exidx :
AnnaBridge 157:e7ca05fa8600 89 {
AnnaBridge 157:e7ca05fa8600 90 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 157:e7ca05fa8600 91 } > FLASH
AnnaBridge 157:e7ca05fa8600 92 __exidx_end = .;
AnnaBridge 157:e7ca05fa8600 93
AnnaBridge 157:e7ca05fa8600 94 __etext = .;
AnnaBridge 157:e7ca05fa8600 95
AnnaBridge 157:e7ca05fa8600 96 .data : AT (__etext)
AnnaBridge 157:e7ca05fa8600 97 {
AnnaBridge 157:e7ca05fa8600 98 __data_start__ = .;
AnnaBridge 157:e7ca05fa8600 99 Image$$RW_IRAM1$$Base = .;
AnnaBridge 157:e7ca05fa8600 100 *(vtable)
AnnaBridge 157:e7ca05fa8600 101 *(.data*)
AnnaBridge 157:e7ca05fa8600 102
AnnaBridge 171:3a7713b1edbc 103 . = ALIGN(8);
AnnaBridge 157:e7ca05fa8600 104 /* preinit data */
AnnaBridge 157:e7ca05fa8600 105 PROVIDE (__preinit_array_start = .);
AnnaBridge 157:e7ca05fa8600 106 KEEP(*(.preinit_array))
AnnaBridge 157:e7ca05fa8600 107 PROVIDE (__preinit_array_end = .);
AnnaBridge 157:e7ca05fa8600 108
AnnaBridge 171:3a7713b1edbc 109 . = ALIGN(8);
AnnaBridge 157:e7ca05fa8600 110 /* init data */
AnnaBridge 157:e7ca05fa8600 111 PROVIDE (__init_array_start = .);
AnnaBridge 157:e7ca05fa8600 112 KEEP(*(SORT(.init_array.*)))
AnnaBridge 157:e7ca05fa8600 113 KEEP(*(.init_array))
AnnaBridge 157:e7ca05fa8600 114 PROVIDE (__init_array_end = .);
AnnaBridge 157:e7ca05fa8600 115
AnnaBridge 157:e7ca05fa8600 116
AnnaBridge 171:3a7713b1edbc 117 . = ALIGN(8);
AnnaBridge 157:e7ca05fa8600 118 /* finit data */
AnnaBridge 157:e7ca05fa8600 119 PROVIDE (__fini_array_start = .);
AnnaBridge 157:e7ca05fa8600 120 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 157:e7ca05fa8600 121 KEEP(*(.fini_array))
AnnaBridge 157:e7ca05fa8600 122 PROVIDE (__fini_array_end = .);
AnnaBridge 157:e7ca05fa8600 123
AnnaBridge 171:3a7713b1edbc 124 . = ALIGN(8);
AnnaBridge 157:e7ca05fa8600 125 /* All data end */
AnnaBridge 157:e7ca05fa8600 126 __data_end__ = .;
AnnaBridge 157:e7ca05fa8600 127
AnnaBridge 157:e7ca05fa8600 128 } > RAM
AnnaBridge 157:e7ca05fa8600 129
AnnaBridge 157:e7ca05fa8600 130
AnnaBridge 157:e7ca05fa8600 131 .bss :
AnnaBridge 157:e7ca05fa8600 132 {
AnnaBridge 157:e7ca05fa8600 133 __bss_start__ = .;
AnnaBridge 157:e7ca05fa8600 134 *(.bss*)
AnnaBridge 157:e7ca05fa8600 135 *(COMMON)
AnnaBridge 157:e7ca05fa8600 136 __bss_end__ = .;
AnnaBridge 157:e7ca05fa8600 137 Image$$RW_IRAM1$$ZI$$Limit = . ;
AnnaBridge 157:e7ca05fa8600 138 } > RAM
AnnaBridge 157:e7ca05fa8600 139
AnnaBridge 157:e7ca05fa8600 140
AnnaBridge 157:e7ca05fa8600 141 .heap :
AnnaBridge 157:e7ca05fa8600 142 {
AnnaBridge 157:e7ca05fa8600 143 __end__ = .;
AnnaBridge 157:e7ca05fa8600 144 end = __end__;
AnnaBridge 157:e7ca05fa8600 145 *(.heap*)
AnnaBridge 157:e7ca05fa8600 146 __HeapLimit = .;
AnnaBridge 157:e7ca05fa8600 147 } > RAM
AnnaBridge 157:e7ca05fa8600 148
AnnaBridge 157:e7ca05fa8600 149 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 157:e7ca05fa8600 150 * used for linker to calculate size of stack sections, and assign
AnnaBridge 157:e7ca05fa8600 151 * values to stack symbols later */
AnnaBridge 157:e7ca05fa8600 152 .stack_dummy :
AnnaBridge 157:e7ca05fa8600 153 {
AnnaBridge 157:e7ca05fa8600 154 *(.stack)
AnnaBridge 157:e7ca05fa8600 155 } > RAM
AnnaBridge 157:e7ca05fa8600 156
AnnaBridge 157:e7ca05fa8600 157 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 157:e7ca05fa8600 158 * size of stack_dummy section */
AnnaBridge 157:e7ca05fa8600 159 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 157:e7ca05fa8600 160 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 157:e7ca05fa8600 161 PROVIDE(__stack = __StackTop);
AnnaBridge 157:e7ca05fa8600 162
AnnaBridge 157:e7ca05fa8600 163 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 157:e7ca05fa8600 164 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 157:e7ca05fa8600 165
AnnaBridge 157:e7ca05fa8600 166
AnnaBridge 157:e7ca05fa8600 167 /* Code can explicitly ask for data to be
AnnaBridge 157:e7ca05fa8600 168 placed in these higher RAM banks where
AnnaBridge 157:e7ca05fa8600 169 they will be left uninitialized.
AnnaBridge 157:e7ca05fa8600 170 */
AnnaBridge 157:e7ca05fa8600 171 .AHBSRAM0 (NOLOAD):
AnnaBridge 157:e7ca05fa8600 172 {
AnnaBridge 157:e7ca05fa8600 173 Image$$RW_IRAM2$$Base = . ;
AnnaBridge 157:e7ca05fa8600 174 *(AHBSRAM0)
AnnaBridge 157:e7ca05fa8600 175 Image$$RW_IRAM2$$ZI$$Limit = .;
AnnaBridge 157:e7ca05fa8600 176 } > USB_RAM
AnnaBridge 157:e7ca05fa8600 177
AnnaBridge 157:e7ca05fa8600 178 .AHBSRAM1 (NOLOAD):
AnnaBridge 157:e7ca05fa8600 179 {
AnnaBridge 157:e7ca05fa8600 180 Image$$RW_IRAM3$$Base = . ;
AnnaBridge 157:e7ca05fa8600 181 *(AHBSRAM1)
AnnaBridge 157:e7ca05fa8600 182 Image$$RW_IRAM3$$ZI$$Limit = .;
AnnaBridge 157:e7ca05fa8600 183 } > ETH_RAM
AnnaBridge 157:e7ca05fa8600 184 }