Takayuki Ito / mbed

Library

Dependents:   OSCTest_2

Fork of mbed by gokmen ascioglu

LPC1768/GCC_ARM/LPC1768.ld@0:a8fa94490a0a, 2012-09-22 (annotated)

Committer:
gokmenascioglu
Date:
Sat Sep 22 10:32:07 2012 +0000
Revision:
0:a8fa94490a0a
alican library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gokmenascioglu 0:a8fa94490a0a 1 /* Linker script for mbed LPC1768 */
gokmenascioglu 0:a8fa94490a0a 2 GROUP(-lstdc++ -lsupc++ -lm -lc -lnosys -lgcc)
gokmenascioglu 0:a8fa94490a0a 3
gokmenascioglu 0:a8fa94490a0a 4 /* Linker script to configure memory regions. */
gokmenascioglu 0:a8fa94490a0a 5 MEMORY
gokmenascioglu 0:a8fa94490a0a 6 {
gokmenascioglu 0:a8fa94490a0a 7 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 512K
gokmenascioglu 0:a8fa94490a0a 8 RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = 0x7F38
gokmenascioglu 0:a8fa94490a0a 9
gokmenascioglu 0:a8fa94490a0a 10 USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
gokmenascioglu 0:a8fa94490a0a 11 ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
gokmenascioglu 0:a8fa94490a0a 12 }
gokmenascioglu 0:a8fa94490a0a 13
gokmenascioglu 0:a8fa94490a0a 14 /* Linker script to place sections and symbol values. Should be used together
gokmenascioglu 0:a8fa94490a0a 15 * with other linker script that defines memory regions FLASH and RAM.
gokmenascioglu 0:a8fa94490a0a 16 * It references following symbols, which must be defined in code:
gokmenascioglu 0:a8fa94490a0a 17 * Reset_Handler : Entry of reset handler
gokmenascioglu 0:a8fa94490a0a 18 *
gokmenascioglu 0:a8fa94490a0a 19 * It defines following symbols, which code can use without definition:
gokmenascioglu 0:a8fa94490a0a 20 * __exidx_start
gokmenascioglu 0:a8fa94490a0a 21 * __exidx_end
gokmenascioglu 0:a8fa94490a0a 22 * __etext
gokmenascioglu 0:a8fa94490a0a 23 * __data_start__
gokmenascioglu 0:a8fa94490a0a 24 * __preinit_array_start
gokmenascioglu 0:a8fa94490a0a 25 * __preinit_array_end
gokmenascioglu 0:a8fa94490a0a 26 * __init_array_start
gokmenascioglu 0:a8fa94490a0a 27 * __init_array_end
gokmenascioglu 0:a8fa94490a0a 28 * __fini_array_start
gokmenascioglu 0:a8fa94490a0a 29 * __fini_array_end
gokmenascioglu 0:a8fa94490a0a 30 * __data_end__
gokmenascioglu 0:a8fa94490a0a 31 * __bss_start__
gokmenascioglu 0:a8fa94490a0a 32 * __bss_end__
gokmenascioglu 0:a8fa94490a0a 33 * __end__
gokmenascioglu 0:a8fa94490a0a 34 * end
gokmenascioglu 0:a8fa94490a0a 35 * __HeapLimit
gokmenascioglu 0:a8fa94490a0a 36 * __StackLimit
gokmenascioglu 0:a8fa94490a0a 37 * __StackTop
gokmenascioglu 0:a8fa94490a0a 38 * __stack
gokmenascioglu 0:a8fa94490a0a 39 */
gokmenascioglu 0:a8fa94490a0a 40 ENTRY(Reset_Handler)
gokmenascioglu 0:a8fa94490a0a 41
gokmenascioglu 0:a8fa94490a0a 42 SECTIONS
gokmenascioglu 0:a8fa94490a0a 43 {
gokmenascioglu 0:a8fa94490a0a 44 .text :
gokmenascioglu 0:a8fa94490a0a 45 {
gokmenascioglu 0:a8fa94490a0a 46 KEEP(*(.isr_vector))
gokmenascioglu 0:a8fa94490a0a 47 *(.text*)
gokmenascioglu 0:a8fa94490a0a 48
gokmenascioglu 0:a8fa94490a0a 49 KEEP(*(.init))
gokmenascioglu 0:a8fa94490a0a 50 KEEP(*(.fini))
gokmenascioglu 0:a8fa94490a0a 51
gokmenascioglu 0:a8fa94490a0a 52 /* .ctors */
gokmenascioglu 0:a8fa94490a0a 53 *crtbegin.o(.ctors)
gokmenascioglu 0:a8fa94490a0a 54 *crtbegin?.o(.ctors)
gokmenascioglu 0:a8fa94490a0a 55 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
gokmenascioglu 0:a8fa94490a0a 56 *(SORT(.ctors.*))
gokmenascioglu 0:a8fa94490a0a 57 *(.ctors)
gokmenascioglu 0:a8fa94490a0a 58
gokmenascioglu 0:a8fa94490a0a 59 /* .dtors */
gokmenascioglu 0:a8fa94490a0a 60 *crtbegin.o(.dtors)
gokmenascioglu 0:a8fa94490a0a 61 *crtbegin?.o(.dtors)
gokmenascioglu 0:a8fa94490a0a 62 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
gokmenascioglu 0:a8fa94490a0a 63 *(SORT(.dtors.*))
gokmenascioglu 0:a8fa94490a0a 64 *(.dtors)
gokmenascioglu 0:a8fa94490a0a 65
gokmenascioglu 0:a8fa94490a0a 66 *(.rodata*)
gokmenascioglu 0:a8fa94490a0a 67
gokmenascioglu 0:a8fa94490a0a 68 KEEP(*(.eh_frame*))
gokmenascioglu 0:a8fa94490a0a 69 } > FLASH
gokmenascioglu 0:a8fa94490a0a 70
gokmenascioglu 0:a8fa94490a0a 71 .ARM.extab :
gokmenascioglu 0:a8fa94490a0a 72 {
gokmenascioglu 0:a8fa94490a0a 73 *(.ARM.extab* .gnu.linkonce.armextab.*)
gokmenascioglu 0:a8fa94490a0a 74 } > FLASH
gokmenascioglu 0:a8fa94490a0a 75
gokmenascioglu 0:a8fa94490a0a 76 __exidx_start = .;
gokmenascioglu 0:a8fa94490a0a 77 .ARM.exidx :
gokmenascioglu 0:a8fa94490a0a 78 {
gokmenascioglu 0:a8fa94490a0a 79 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
gokmenascioglu 0:a8fa94490a0a 80 } > FLASH
gokmenascioglu 0:a8fa94490a0a 81 __exidx_end = .;
gokmenascioglu 0:a8fa94490a0a 82
gokmenascioglu 0:a8fa94490a0a 83 __etext = .;
gokmenascioglu 0:a8fa94490a0a 84
gokmenascioglu 0:a8fa94490a0a 85 .data : AT (__etext)
gokmenascioglu 0:a8fa94490a0a 86 {
gokmenascioglu 0:a8fa94490a0a 87 __data_start__ = .;
gokmenascioglu 0:a8fa94490a0a 88 *(vtable)
gokmenascioglu 0:a8fa94490a0a 89 *(.data*)
gokmenascioglu 0:a8fa94490a0a 90
gokmenascioglu 0:a8fa94490a0a 91 . = ALIGN(4);
gokmenascioglu 0:a8fa94490a0a 92 /* preinit data */
gokmenascioglu 0:a8fa94490a0a 93 PROVIDE (__preinit_array_start = .);
gokmenascioglu 0:a8fa94490a0a 94 KEEP(*(.preinit_array))
gokmenascioglu 0:a8fa94490a0a 95 PROVIDE (__preinit_array_end = .);
gokmenascioglu 0:a8fa94490a0a 96
gokmenascioglu 0:a8fa94490a0a 97 . = ALIGN(4);
gokmenascioglu 0:a8fa94490a0a 98 /* init data */
gokmenascioglu 0:a8fa94490a0a 99 PROVIDE (__init_array_start = .);
gokmenascioglu 0:a8fa94490a0a 100 KEEP(*(SORT(.init_array.*)))
gokmenascioglu 0:a8fa94490a0a 101 KEEP(*(.init_array))
gokmenascioglu 0:a8fa94490a0a 102 PROVIDE (__init_array_end = .);
gokmenascioglu 0:a8fa94490a0a 103
gokmenascioglu 0:a8fa94490a0a 104
gokmenascioglu 0:a8fa94490a0a 105 . = ALIGN(4);
gokmenascioglu 0:a8fa94490a0a 106 /* finit data */
gokmenascioglu 0:a8fa94490a0a 107 PROVIDE (__fini_array_start = .);
gokmenascioglu 0:a8fa94490a0a 108 KEEP(*(SORT(.fini_array.*)))
gokmenascioglu 0:a8fa94490a0a 109 KEEP(*(.fini_array))
gokmenascioglu 0:a8fa94490a0a 110 PROVIDE (__fini_array_end = .);
gokmenascioglu 0:a8fa94490a0a 111
gokmenascioglu 0:a8fa94490a0a 112 . = ALIGN(4);
gokmenascioglu 0:a8fa94490a0a 113 /* All data end */
gokmenascioglu 0:a8fa94490a0a 114 __data_end__ = .;
gokmenascioglu 0:a8fa94490a0a 115
gokmenascioglu 0:a8fa94490a0a 116 } > RAM
gokmenascioglu 0:a8fa94490a0a 117
gokmenascioglu 0:a8fa94490a0a 118 .bss :
gokmenascioglu 0:a8fa94490a0a 119 {
gokmenascioglu 0:a8fa94490a0a 120 __bss_start__ = .;
gokmenascioglu 0:a8fa94490a0a 121 *(.bss*)
gokmenascioglu 0:a8fa94490a0a 122 *(COMMON)
gokmenascioglu 0:a8fa94490a0a 123 __bss_end__ = .;
gokmenascioglu 0:a8fa94490a0a 124 } > RAM
gokmenascioglu 0:a8fa94490a0a 125
gokmenascioglu 0:a8fa94490a0a 126 .heap :
gokmenascioglu 0:a8fa94490a0a 127 {
gokmenascioglu 0:a8fa94490a0a 128 __end__ = .;
gokmenascioglu 0:a8fa94490a0a 129 end = __end__;
gokmenascioglu 0:a8fa94490a0a 130 *(.heap*)
gokmenascioglu 0:a8fa94490a0a 131 __HeapLimit = .;
gokmenascioglu 0:a8fa94490a0a 132 } > RAM
gokmenascioglu 0:a8fa94490a0a 133
gokmenascioglu 0:a8fa94490a0a 134 /* .stack_dummy section doesn't contains any symbols. It is only
gokmenascioglu 0:a8fa94490a0a 135 * used for linker to calculate size of stack sections, and assign
gokmenascioglu 0:a8fa94490a0a 136 * values to stack symbols later */
gokmenascioglu 0:a8fa94490a0a 137 .stack_dummy :
gokmenascioglu 0:a8fa94490a0a 138 {
gokmenascioglu 0:a8fa94490a0a 139 *(.stack)
gokmenascioglu 0:a8fa94490a0a 140 } > RAM
gokmenascioglu 0:a8fa94490a0a 141
gokmenascioglu 0:a8fa94490a0a 142 /* Set stack top to end of RAM, and stack limit move down by
gokmenascioglu 0:a8fa94490a0a 143 * size of stack_dummy section */
gokmenascioglu 0:a8fa94490a0a 144 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
gokmenascioglu 0:a8fa94490a0a 145 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
gokmenascioglu 0:a8fa94490a0a 146 PROVIDE(__stack = __StackTop);
gokmenascioglu 0:a8fa94490a0a 147
gokmenascioglu 0:a8fa94490a0a 148 /* Check if data + heap + stack exceeds RAM limit */
gokmenascioglu 0:a8fa94490a0a 149 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
gokmenascioglu 0:a8fa94490a0a 150 }