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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_LPC824/TOOLCHAIN_GCC_ARM/LPC824.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 156:ff21514d8981 1 /* Linker script for mbed LPC824-GCC-ARM based on LPC1114-GCC-ARM-LPC1114.ld */
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 /* Define each memory region */
AnnaBridge 156:ff21514d8981 7 FLASH (rx) : ORIGIN = 0x0, LENGTH = 0x8000 /* 32K bytes */
AnnaBridge 156:ff21514d8981 8 RAM (rwx) : ORIGIN = 0x10000000+0xC0, LENGTH = 0x2000-0xC0 /* 8K bytes */
AnnaBridge 156:ff21514d8981 9
AnnaBridge 156:ff21514d8981 10
AnnaBridge 156:ff21514d8981 11 }
AnnaBridge 156:ff21514d8981 12
AnnaBridge 156:ff21514d8981 13 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 14 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 15 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 16 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 17 *
AnnaBridge 156:ff21514d8981 18 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 19 * __exidx_start
AnnaBridge 156:ff21514d8981 20 * __exidx_end
AnnaBridge 156:ff21514d8981 21 * __etext
AnnaBridge 156:ff21514d8981 22 * __data_start__
AnnaBridge 156:ff21514d8981 23 * __preinit_array_start
AnnaBridge 156:ff21514d8981 24 * __preinit_array_end
AnnaBridge 156:ff21514d8981 25 * __init_array_start
AnnaBridge 156:ff21514d8981 26 * __init_array_end
AnnaBridge 156:ff21514d8981 27 * __fini_array_start
AnnaBridge 156:ff21514d8981 28 * __fini_array_end
AnnaBridge 156:ff21514d8981 29 * __data_end__
AnnaBridge 156:ff21514d8981 30 * __bss_start__
AnnaBridge 156:ff21514d8981 31 * __bss_end__
AnnaBridge 156:ff21514d8981 32 * __end__
AnnaBridge 156:ff21514d8981 33 * end
AnnaBridge 156:ff21514d8981 34 * __HeapLimit
AnnaBridge 156:ff21514d8981 35 * __StackLimit
AnnaBridge 156:ff21514d8981 36 * __StackTop
AnnaBridge 156:ff21514d8981 37 * __stack
AnnaBridge 156:ff21514d8981 38 */
AnnaBridge 156:ff21514d8981 39 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 40
AnnaBridge 156:ff21514d8981 41 SECTIONS
AnnaBridge 156:ff21514d8981 42 {
AnnaBridge 156:ff21514d8981 43 .text :
AnnaBridge 156:ff21514d8981 44 {
AnnaBridge 156:ff21514d8981 45 KEEP(*(.isr_vector))
AnnaBridge 156:ff21514d8981 46 *(.text.Reset_Handler)
AnnaBridge 156:ff21514d8981 47 *(.text.SystemInit)
AnnaBridge 156:ff21514d8981 48 *(.text*)
AnnaBridge 156:ff21514d8981 49
AnnaBridge 156:ff21514d8981 50 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 51 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 52
AnnaBridge 156:ff21514d8981 53 /* .ctors */
AnnaBridge 156:ff21514d8981 54 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 55 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 57 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 58 *(.ctors)
AnnaBridge 156:ff21514d8981 59
AnnaBridge 156:ff21514d8981 60 /* .dtors */
AnnaBridge 156:ff21514d8981 61 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 62 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 63 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 64 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 65 *(.dtors)
AnnaBridge 156:ff21514d8981 66
AnnaBridge 156:ff21514d8981 67 *(.rodata*)
AnnaBridge 156:ff21514d8981 68
AnnaBridge 156:ff21514d8981 69 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 70 } > FLASH
AnnaBridge 156:ff21514d8981 71
AnnaBridge 156:ff21514d8981 72 .ARM.extab :
AnnaBridge 156:ff21514d8981 73 {
AnnaBridge 156:ff21514d8981 74 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 75 } > FLASH
AnnaBridge 156:ff21514d8981 76
AnnaBridge 156:ff21514d8981 77 __exidx_start = .;
AnnaBridge 156:ff21514d8981 78 .ARM.exidx :
AnnaBridge 156:ff21514d8981 79 {
AnnaBridge 156:ff21514d8981 80 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 81 } > FLASH
AnnaBridge 156:ff21514d8981 82 __exidx_end = .;
AnnaBridge 156:ff21514d8981 83
AnnaBridge 156:ff21514d8981 84 __etext = .;
AnnaBridge 156:ff21514d8981 85
AnnaBridge 156:ff21514d8981 86 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 87 {
AnnaBridge 156:ff21514d8981 88 __data_start__ = .;
AnnaBridge 156:ff21514d8981 89 *(vtable)
AnnaBridge 156:ff21514d8981 90 *(.data*)
AnnaBridge 156:ff21514d8981 91
AnnaBridge 171:3a7713b1edbc 92 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 93 /* preinit data */
AnnaBridge 156:ff21514d8981 94 PROVIDE (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 95 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 96 PROVIDE (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 97
AnnaBridge 171:3a7713b1edbc 98 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 99 /* init data */
AnnaBridge 156:ff21514d8981 100 PROVIDE (__init_array_start = .);
AnnaBridge 156:ff21514d8981 101 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 102 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 103 PROVIDE (__init_array_end = .);
AnnaBridge 156:ff21514d8981 104
AnnaBridge 156:ff21514d8981 105
AnnaBridge 171:3a7713b1edbc 106 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 107 /* finit data */
AnnaBridge 156:ff21514d8981 108 PROVIDE (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 109 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 110 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 111 PROVIDE (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 112
AnnaBridge 171:3a7713b1edbc 113 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 114 /* All data end */
AnnaBridge 156:ff21514d8981 115 __data_end__ = .;
AnnaBridge 156:ff21514d8981 116
AnnaBridge 156:ff21514d8981 117 } > RAM
AnnaBridge 156:ff21514d8981 118
AnnaBridge 156:ff21514d8981 119 .bss :
AnnaBridge 156:ff21514d8981 120 {
AnnaBridge 156:ff21514d8981 121 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 122 *(.bss*)
AnnaBridge 156:ff21514d8981 123 *(COMMON)
AnnaBridge 156:ff21514d8981 124 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 125 } > RAM
AnnaBridge 156:ff21514d8981 126
AnnaBridge 156:ff21514d8981 127 .heap :
AnnaBridge 156:ff21514d8981 128 {
AnnaBridge 156:ff21514d8981 129 __end__ = .;
AnnaBridge 156:ff21514d8981 130 end = __end__;
AnnaBridge 156:ff21514d8981 131 *(.heap*)
AnnaBridge 156:ff21514d8981 132 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 133 } > RAM
AnnaBridge 156:ff21514d8981 134
AnnaBridge 156:ff21514d8981 135 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 136 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 137 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 138 .stack_dummy :
AnnaBridge 156:ff21514d8981 139 {
AnnaBridge 156:ff21514d8981 140 *(.stack)
AnnaBridge 156:ff21514d8981 141 } > RAM
AnnaBridge 156:ff21514d8981 142
AnnaBridge 156:ff21514d8981 143 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 144 * size of stack_dummy section */
AnnaBridge 156:ff21514d8981 145 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 156:ff21514d8981 146 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 147 PROVIDE(__stack = __StackTop);
AnnaBridge 156:ff21514d8981 148
AnnaBridge 156:ff21514d8981 149 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 156:ff21514d8981 150 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 156:ff21514d8981 151 }