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_LPC1768/TOOLCHAIN_GCC_ARM/LPC1768.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 /* Linker script for mbed LPC1768 */
AnnaBridge 156:ff21514d8981 2 #if !defined(MBED_APP_START)
AnnaBridge 156:ff21514d8981 3 #define MBED_APP_START 0x00000000
AnnaBridge 156:ff21514d8981 4 #endif
AnnaBridge 156:ff21514d8981 5
AnnaBridge 156:ff21514d8981 6 #if !defined(MBED_APP_SIZE)
AnnaBridge 156:ff21514d8981 7 #define MBED_APP_SIZE 512K
AnnaBridge 156:ff21514d8981 8 #endif
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 = 0x100000C8, LENGTH = (32K - 0xC8 - 32) /* topmost 32 bytes used by IAP functions */
AnnaBridge 156:ff21514d8981 14
AnnaBridge 156:ff21514d8981 15 USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
AnnaBridge 156:ff21514d8981 16 ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
AnnaBridge 156:ff21514d8981 17 }
AnnaBridge 156:ff21514d8981 18
AnnaBridge 156:ff21514d8981 19 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 20 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 21 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 22 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 23 *
AnnaBridge 156:ff21514d8981 24 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 25 * __exidx_start
AnnaBridge 156:ff21514d8981 26 * __exidx_end
AnnaBridge 156:ff21514d8981 27 * __etext
AnnaBridge 156:ff21514d8981 28 * __data_start__
AnnaBridge 156:ff21514d8981 29 * __preinit_array_start
AnnaBridge 156:ff21514d8981 30 * __preinit_array_end
AnnaBridge 156:ff21514d8981 31 * __init_array_start
AnnaBridge 156:ff21514d8981 32 * __init_array_end
AnnaBridge 156:ff21514d8981 33 * __fini_array_start
AnnaBridge 156:ff21514d8981 34 * __fini_array_end
AnnaBridge 156:ff21514d8981 35 * __data_end__
AnnaBridge 156:ff21514d8981 36 * __bss_start__
AnnaBridge 156:ff21514d8981 37 * __bss_end__
AnnaBridge 156:ff21514d8981 38 * __end__
AnnaBridge 156:ff21514d8981 39 * end
AnnaBridge 156:ff21514d8981 40 * __HeapLimit
AnnaBridge 156:ff21514d8981 41 * __StackLimit
AnnaBridge 156:ff21514d8981 42 * __StackTop
AnnaBridge 156:ff21514d8981 43 * __stack
AnnaBridge 156:ff21514d8981 44 */
AnnaBridge 156:ff21514d8981 45 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 46
AnnaBridge 156:ff21514d8981 47 SECTIONS
AnnaBridge 156:ff21514d8981 48 {
AnnaBridge 156:ff21514d8981 49 .text :
AnnaBridge 156:ff21514d8981 50 {
AnnaBridge 156:ff21514d8981 51 KEEP(*(.isr_vector))
AnnaBridge 156:ff21514d8981 52 /* Code Read Protect data */
AnnaBridge 156:ff21514d8981 53 . = 0x000002FC ;
AnnaBridge 156:ff21514d8981 54 KEEP(*(.CRPSection))
AnnaBridge 156:ff21514d8981 55 /* End of Code Read Protect */
AnnaBridge 156:ff21514d8981 56 *(.text*)
AnnaBridge 156:ff21514d8981 57
AnnaBridge 156:ff21514d8981 58 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 59 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 60
AnnaBridge 156:ff21514d8981 61 /* .ctors */
AnnaBridge 156:ff21514d8981 62 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 63 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 64 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 65 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 66 *(.ctors)
AnnaBridge 156:ff21514d8981 67
AnnaBridge 156:ff21514d8981 68 /* .dtors */
AnnaBridge 156:ff21514d8981 69 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 70 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 71 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 72 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 73 *(.dtors)
AnnaBridge 156:ff21514d8981 74
AnnaBridge 156:ff21514d8981 75 *(.rodata*)
AnnaBridge 156:ff21514d8981 76
AnnaBridge 156:ff21514d8981 77 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 78
AnnaBridge 156:ff21514d8981 79
AnnaBridge 156:ff21514d8981 80 } > FLASH
AnnaBridge 156:ff21514d8981 81
AnnaBridge 156:ff21514d8981 82 .ARM.extab :
AnnaBridge 156:ff21514d8981 83 {
AnnaBridge 156:ff21514d8981 84 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 85 } > FLASH
AnnaBridge 156:ff21514d8981 86
AnnaBridge 156:ff21514d8981 87 __exidx_start = .;
AnnaBridge 156:ff21514d8981 88 .ARM.exidx :
AnnaBridge 156:ff21514d8981 89 {
AnnaBridge 156:ff21514d8981 90 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 91 } > FLASH
AnnaBridge 156:ff21514d8981 92 __exidx_end = .;
AnnaBridge 156:ff21514d8981 93
AnnaBridge 156:ff21514d8981 94 __etext = .;
AnnaBridge 156:ff21514d8981 95
AnnaBridge 156:ff21514d8981 96 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 97 {
AnnaBridge 156:ff21514d8981 98 __data_start__ = .;
AnnaBridge 156:ff21514d8981 99 Image$$RW_IRAM1$$Base = .;
AnnaBridge 156:ff21514d8981 100 *(vtable)
AnnaBridge 156:ff21514d8981 101 *(.data*)
AnnaBridge 156:ff21514d8981 102
AnnaBridge 156:ff21514d8981 103 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 104 /* preinit data */
AnnaBridge 156:ff21514d8981 105 PROVIDE (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 106 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 107 PROVIDE (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 108
AnnaBridge 156:ff21514d8981 109 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 110 /* init data */
AnnaBridge 156:ff21514d8981 111 PROVIDE (__init_array_start = .);
AnnaBridge 156:ff21514d8981 112 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 113 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 114 PROVIDE (__init_array_end = .);
AnnaBridge 156:ff21514d8981 115
AnnaBridge 156:ff21514d8981 116
AnnaBridge 156:ff21514d8981 117 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 118 /* finit data */
AnnaBridge 156:ff21514d8981 119 PROVIDE (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 120 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 121 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 122 PROVIDE (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 123
AnnaBridge 156:ff21514d8981 124 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 125 /* All data end */
AnnaBridge 156:ff21514d8981 126 __data_end__ = .;
AnnaBridge 156:ff21514d8981 127
AnnaBridge 156:ff21514d8981 128 } > RAM
AnnaBridge 156:ff21514d8981 129
AnnaBridge 156:ff21514d8981 130
AnnaBridge 156:ff21514d8981 131 .bss :
AnnaBridge 156:ff21514d8981 132 {
AnnaBridge 156:ff21514d8981 133 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 134 *(.bss*)
AnnaBridge 156:ff21514d8981 135 *(COMMON)
AnnaBridge 156:ff21514d8981 136 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 137 Image$$RW_IRAM1$$ZI$$Limit = . ;
AnnaBridge 156:ff21514d8981 138 } > RAM
AnnaBridge 156:ff21514d8981 139
AnnaBridge 156:ff21514d8981 140
AnnaBridge 156:ff21514d8981 141 .heap :
AnnaBridge 156:ff21514d8981 142 {
AnnaBridge 156:ff21514d8981 143 __end__ = .;
AnnaBridge 156:ff21514d8981 144 end = __end__;
AnnaBridge 156:ff21514d8981 145 *(.heap*)
AnnaBridge 156:ff21514d8981 146 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 147 } > RAM
AnnaBridge 156:ff21514d8981 148
AnnaBridge 156:ff21514d8981 149 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 150 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 151 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 152 .stack_dummy :
AnnaBridge 156:ff21514d8981 153 {
AnnaBridge 156:ff21514d8981 154 *(.stack)
AnnaBridge 156:ff21514d8981 155 } > RAM
AnnaBridge 156:ff21514d8981 156
AnnaBridge 156:ff21514d8981 157 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 158 * size of stack_dummy section */
AnnaBridge 156:ff21514d8981 159 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 156:ff21514d8981 160 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 161 PROVIDE(__stack = __StackTop);
AnnaBridge 156:ff21514d8981 162
AnnaBridge 156:ff21514d8981 163 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 156:ff21514d8981 164 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 156:ff21514d8981 165
AnnaBridge 156:ff21514d8981 166
AnnaBridge 156:ff21514d8981 167 /* Code can explicitly ask for data to be
AnnaBridge 156:ff21514d8981 168 placed in these higher RAM banks where
AnnaBridge 156:ff21514d8981 169 they will be left uninitialized.
AnnaBridge 156:ff21514d8981 170 */
AnnaBridge 156:ff21514d8981 171 .AHBSRAM0 (NOLOAD):
AnnaBridge 156:ff21514d8981 172 {
AnnaBridge 156:ff21514d8981 173 Image$$RW_IRAM2$$Base = . ;
AnnaBridge 156:ff21514d8981 174 *(AHBSRAM0)
AnnaBridge 156:ff21514d8981 175 Image$$RW_IRAM2$$ZI$$Limit = .;
AnnaBridge 156:ff21514d8981 176 } > USB_RAM
AnnaBridge 156:ff21514d8981 177
AnnaBridge 156:ff21514d8981 178 .AHBSRAM1 (NOLOAD):
AnnaBridge 156:ff21514d8981 179 {
AnnaBridge 156:ff21514d8981 180 Image$$RW_IRAM3$$Base = . ;
AnnaBridge 156:ff21514d8981 181 *(AHBSRAM1)
AnnaBridge 156:ff21514d8981 182 Image$$RW_IRAM3$$ZI$$Limit = .;
AnnaBridge 156:ff21514d8981 183 } > ETH_RAM
AnnaBridge 156:ff21514d8981 184 }