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_OC_MBUINO/TOOLCHAIN_GCC_ARM/LPC11U24.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
AnnaBridge 156:ff21514d8981 3 /* Linker script to configure memory regions. */
AnnaBridge 156:ff21514d8981 4 MEMORY
AnnaBridge 156:ff21514d8981 5 {
AnnaBridge 156:ff21514d8981 6 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 32K
AnnaBridge 156:ff21514d8981 7 RAM (rwx) : ORIGIN = 0x100000C0, LENGTH = 0x1740
AnnaBridge 156:ff21514d8981 8 USB_RAM (rwx): ORIGIN = 0x20004000, LENGTH = 0x800
AnnaBridge 156:ff21514d8981 9 }
AnnaBridge 156:ff21514d8981 10
AnnaBridge 156:ff21514d8981 11 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 12 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 13 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 14 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 15 *
AnnaBridge 156:ff21514d8981 16 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 17 * __exidx_start
AnnaBridge 156:ff21514d8981 18 * __exidx_end
AnnaBridge 156:ff21514d8981 19 * __etext
AnnaBridge 156:ff21514d8981 20 * __data_start__
AnnaBridge 156:ff21514d8981 21 * __preinit_array_start
AnnaBridge 156:ff21514d8981 22 * __preinit_array_end
AnnaBridge 156:ff21514d8981 23 * __init_array_start
AnnaBridge 156:ff21514d8981 24 * __init_array_end
AnnaBridge 156:ff21514d8981 25 * __fini_array_start
AnnaBridge 156:ff21514d8981 26 * __fini_array_end
AnnaBridge 156:ff21514d8981 27 * __data_end__
AnnaBridge 156:ff21514d8981 28 * __bss_start__
AnnaBridge 156:ff21514d8981 29 * __bss_end__
AnnaBridge 156:ff21514d8981 30 * __end__
AnnaBridge 156:ff21514d8981 31 * end
AnnaBridge 156:ff21514d8981 32 * __HeapLimit
AnnaBridge 156:ff21514d8981 33 * __StackLimit
AnnaBridge 156:ff21514d8981 34 * __StackTop
AnnaBridge 156:ff21514d8981 35 * __stack
AnnaBridge 156:ff21514d8981 36 */
AnnaBridge 156:ff21514d8981 37 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 38
AnnaBridge 156:ff21514d8981 39 SECTIONS
AnnaBridge 156:ff21514d8981 40 {
AnnaBridge 156:ff21514d8981 41 .text :
AnnaBridge 156:ff21514d8981 42 {
AnnaBridge 156:ff21514d8981 43 KEEP(*(.isr_vector))
AnnaBridge 156:ff21514d8981 44 *(.text.Reset_Handler)
AnnaBridge 156:ff21514d8981 45 *(.text.SystemInit)
AnnaBridge 156:ff21514d8981 46
AnnaBridge 156:ff21514d8981 47 /* Only vectors and code running at reset are safe to be in first 512
AnnaBridge 156:ff21514d8981 48 bytes since RAM can be mapped into this area for RAM based interrupt
AnnaBridge 156:ff21514d8981 49 vectors. */
AnnaBridge 156:ff21514d8981 50 . = 0x00000200;
AnnaBridge 156:ff21514d8981 51 *(.text*)
AnnaBridge 156:ff21514d8981 52
AnnaBridge 156:ff21514d8981 53 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 54 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 55
AnnaBridge 156:ff21514d8981 56 /* .ctors */
AnnaBridge 156:ff21514d8981 57 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 58 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 59 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 60 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 61 *(.ctors)
AnnaBridge 156:ff21514d8981 62
AnnaBridge 156:ff21514d8981 63 /* .dtors */
AnnaBridge 156:ff21514d8981 64 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 65 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 66 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 67 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 68 *(.dtors)
AnnaBridge 156:ff21514d8981 69
AnnaBridge 156:ff21514d8981 70 *(.rodata*)
AnnaBridge 156:ff21514d8981 71
AnnaBridge 156:ff21514d8981 72 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 73 } > FLASH
AnnaBridge 156:ff21514d8981 74
AnnaBridge 156:ff21514d8981 75 .ARM.extab :
AnnaBridge 156:ff21514d8981 76 {
AnnaBridge 156:ff21514d8981 77 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 78 } > FLASH
AnnaBridge 156:ff21514d8981 79
AnnaBridge 156:ff21514d8981 80 __exidx_start = .;
AnnaBridge 156:ff21514d8981 81 .ARM.exidx :
AnnaBridge 156:ff21514d8981 82 {
AnnaBridge 156:ff21514d8981 83 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 84 } > FLASH
AnnaBridge 156:ff21514d8981 85 __exidx_end = .;
AnnaBridge 156:ff21514d8981 86
AnnaBridge 156:ff21514d8981 87 __etext = .;
AnnaBridge 156:ff21514d8981 88
AnnaBridge 156:ff21514d8981 89 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 90 {
AnnaBridge 156:ff21514d8981 91 __data_start__ = .;
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 (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 98 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 99 PROVIDE (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 100
AnnaBridge 156:ff21514d8981 101 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 102 /* init data */
AnnaBridge 156:ff21514d8981 103 PROVIDE (__init_array_start = .);
AnnaBridge 156:ff21514d8981 104 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 105 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 106 PROVIDE (__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 (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 112 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 113 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 114 PROVIDE (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 115
AnnaBridge 156:ff21514d8981 116 . = ALIGN(4);
AnnaBridge 156:ff21514d8981 117 /* All data end */
AnnaBridge 156:ff21514d8981 118 __data_end__ = .;
AnnaBridge 156:ff21514d8981 119
AnnaBridge 156:ff21514d8981 120 } > RAM
AnnaBridge 156:ff21514d8981 121
AnnaBridge 156:ff21514d8981 122 .bss :
AnnaBridge 156:ff21514d8981 123 {
AnnaBridge 156:ff21514d8981 124 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 125 *(.bss*)
AnnaBridge 156:ff21514d8981 126 *(COMMON)
AnnaBridge 156:ff21514d8981 127 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 128 } > RAM
AnnaBridge 156:ff21514d8981 129
AnnaBridge 156:ff21514d8981 130 .heap :
AnnaBridge 156:ff21514d8981 131 {
AnnaBridge 156:ff21514d8981 132 __end__ = .;
AnnaBridge 156:ff21514d8981 133 end = __end__;
AnnaBridge 156:ff21514d8981 134 *(.heap*)
AnnaBridge 156:ff21514d8981 135 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 136 } > RAM
AnnaBridge 156:ff21514d8981 137
AnnaBridge 156:ff21514d8981 138 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 139 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 140 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 141 .stack_dummy :
AnnaBridge 156:ff21514d8981 142 {
AnnaBridge 156:ff21514d8981 143 *(.stack)
AnnaBridge 156:ff21514d8981 144 } > RAM
AnnaBridge 156:ff21514d8981 145
AnnaBridge 156:ff21514d8981 146 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 147 * size of stack_dummy section */
AnnaBridge 156:ff21514d8981 148 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 156:ff21514d8981 149 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 150 PROVIDE(__stack = __StackTop);
AnnaBridge 156:ff21514d8981 151
AnnaBridge 156:ff21514d8981 152 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 156:ff21514d8981 153 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 156:ff21514d8981 154 }