marcus chiou / mbed-src

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targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/TOOLCHAIN_GCC_ARM/TARGET_MCU_NORDIC_32K/NRF51822.ld@636:cb7d56e6ff53, 2015-10-27 (annotated)

Committer:
marcusC
Date:
Tue Oct 27 07:54:54 2015 +0000
Revision:
636:cb7d56e6ff53
Parent:
531:47d2b67c511f 
Changed for DELTA_DFCM_NNN40; Do not initialize flash at mbed_sdk_init()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 310:1c287fe42d43 1 /* Linker script to configure memory regions. */
mbed_official 310:1c287fe42d43 2
mbed_official 310:1c287fe42d43 3 MEMORY
mbed_official 310:1c287fe42d43 4 {
mbed_official 531:47d2b67c511f 5 FLASH (rx) : ORIGIN = 0x0001C000, LENGTH = 0x24000
mbed_official 531:47d2b67c511f 6 RAM (rwx) : ORIGIN = 0x20002800, LENGTH = 0x5800
mbed_official 310:1c287fe42d43 7 }
mbed_official 310:1c287fe42d43 8
mbed_official 310:1c287fe42d43 9 OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
mbed_official 310:1c287fe42d43 10
mbed_official 310:1c287fe42d43 11 /* Linker script to place sections and symbol values. Should be used together
mbed_official 310:1c287fe42d43 12 * with other linker script that defines memory regions FLASH and RAM.
mbed_official 310:1c287fe42d43 13 * It references following symbols, which must be defined in code:
mbed_official 310:1c287fe42d43 14 * Reset_Handler : Entry of reset handler
mbed_official 310:1c287fe42d43 15 *
mbed_official 310:1c287fe42d43 16 * It defines following symbols, which code can use without definition:
mbed_official 310:1c287fe42d43 17 * __exidx_start
mbed_official 310:1c287fe42d43 18 * __exidx_end
mbed_official 310:1c287fe42d43 19 * __etext
mbed_official 310:1c287fe42d43 20 * __data_start__
mbed_official 310:1c287fe42d43 21 * __preinit_array_start
mbed_official 310:1c287fe42d43 22 * __preinit_array_end
mbed_official 310:1c287fe42d43 23 * __init_array_start
mbed_official 310:1c287fe42d43 24 * __init_array_end
mbed_official 310:1c287fe42d43 25 * __fini_array_start
mbed_official 310:1c287fe42d43 26 * __fini_array_end
mbed_official 310:1c287fe42d43 27 * __data_end__
mbed_official 310:1c287fe42d43 28 * __bss_start__
mbed_official 310:1c287fe42d43 29 * __bss_end__
mbed_official 310:1c287fe42d43 30 * __end__
mbed_official 310:1c287fe42d43 31 * end
mbed_official 310:1c287fe42d43 32 * __HeapLimit
mbed_official 310:1c287fe42d43 33 * __StackLimit
mbed_official 310:1c287fe42d43 34 * __StackTop
mbed_official 310:1c287fe42d43 35 * __stack
mbed_official 310:1c287fe42d43 36 */
mbed_official 310:1c287fe42d43 37 ENTRY(Reset_Handler)
mbed_official 310:1c287fe42d43 38
mbed_official 310:1c287fe42d43 39 SECTIONS
mbed_official 310:1c287fe42d43 40 {
mbed_official 310:1c287fe42d43 41 .text :
mbed_official 310:1c287fe42d43 42 {
mbed_official 310:1c287fe42d43 43 KEEP(*(.Vectors))
mbed_official 310:1c287fe42d43 44 *(.text*)
mbed_official 310:1c287fe42d43 45
mbed_official 310:1c287fe42d43 46 KEEP(*(.init))
mbed_official 310:1c287fe42d43 47 KEEP(*(.fini))
mbed_official 310:1c287fe42d43 48
mbed_official 310:1c287fe42d43 49 /* .ctors */
mbed_official 310:1c287fe42d43 50 *crtbegin.o(.ctors)
mbed_official 310:1c287fe42d43 51 *crtbegin?.o(.ctors)
mbed_official 310:1c287fe42d43 52 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
mbed_official 310:1c287fe42d43 53 *(SORT(.ctors.*))
mbed_official 310:1c287fe42d43 54 *(.ctors)
mbed_official 310:1c287fe42d43 55
mbed_official 310:1c287fe42d43 56 /* .dtors */
mbed_official 310:1c287fe42d43 57 *crtbegin.o(.dtors)
mbed_official 310:1c287fe42d43 58 *crtbegin?.o(.dtors)
mbed_official 310:1c287fe42d43 59 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
mbed_official 310:1c287fe42d43 60 *(SORT(.dtors.*))
mbed_official 310:1c287fe42d43 61 *(.dtors)
mbed_official 310:1c287fe42d43 62
mbed_official 310:1c287fe42d43 63 *(.rodata*)
mbed_official 310:1c287fe42d43 64
mbed_official 310:1c287fe42d43 65 KEEP(*(.eh_frame*))
mbed_official 310:1c287fe42d43 66 } > FLASH
mbed_official 310:1c287fe42d43 67
mbed_official 310:1c287fe42d43 68
mbed_official 310:1c287fe42d43 69 .ARM.extab :
mbed_official 310:1c287fe42d43 70 {
mbed_official 310:1c287fe42d43 71 *(.ARM.extab* .gnu.linkonce.armextab.*)
mbed_official 310:1c287fe42d43 72 } > FLASH
mbed_official 310:1c287fe42d43 73
mbed_official 310:1c287fe42d43 74 __exidx_start = .;
mbed_official 310:1c287fe42d43 75 .ARM.exidx :
mbed_official 310:1c287fe42d43 76 {
mbed_official 310:1c287fe42d43 77 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
mbed_official 310:1c287fe42d43 78 } > FLASH
mbed_official 310:1c287fe42d43 79 __exidx_end = .;
mbed_official 310:1c287fe42d43 80
mbed_official 310:1c287fe42d43 81 __etext = .;
mbed_official 310:1c287fe42d43 82
mbed_official 310:1c287fe42d43 83 .data : AT (__etext)
mbed_official 310:1c287fe42d43 84 {
mbed_official 310:1c287fe42d43 85 __data_start__ = .;
mbed_official 310:1c287fe42d43 86 *(vtable)
mbed_official 310:1c287fe42d43 87 *(.data*)
mbed_official 310:1c287fe42d43 88
mbed_official 310:1c287fe42d43 89 . = ALIGN(4);
mbed_official 310:1c287fe42d43 90 /* preinit data */
mbed_official 310:1c287fe42d43 91 PROVIDE_HIDDEN (__preinit_array_start = .);
mbed_official 310:1c287fe42d43 92 KEEP(*(.preinit_array))
mbed_official 310:1c287fe42d43 93 PROVIDE_HIDDEN (__preinit_array_end = .);
mbed_official 310:1c287fe42d43 94
mbed_official 310:1c287fe42d43 95 . = ALIGN(4);
mbed_official 310:1c287fe42d43 96 /* init data */
mbed_official 310:1c287fe42d43 97 PROVIDE_HIDDEN (__init_array_start = .);
mbed_official 310:1c287fe42d43 98 KEEP(*(SORT(.init_array.*)))
mbed_official 310:1c287fe42d43 99 KEEP(*(.init_array))
mbed_official 310:1c287fe42d43 100 PROVIDE_HIDDEN (__init_array_end = .);
mbed_official 310:1c287fe42d43 101
mbed_official 310:1c287fe42d43 102
mbed_official 310:1c287fe42d43 103 . = ALIGN(4);
mbed_official 310:1c287fe42d43 104 /* finit data */
mbed_official 310:1c287fe42d43 105 PROVIDE_HIDDEN (__fini_array_start = .);
mbed_official 310:1c287fe42d43 106 KEEP(*(SORT(.fini_array.*)))
mbed_official 310:1c287fe42d43 107 KEEP(*(.fini_array))
mbed_official 310:1c287fe42d43 108 PROVIDE_HIDDEN (__fini_array_end = .);
mbed_official 310:1c287fe42d43 109
mbed_official 310:1c287fe42d43 110 *(.jcr)
mbed_official 310:1c287fe42d43 111 . = ALIGN(4);
mbed_official 310:1c287fe42d43 112 /* All data end */
mbed_official 310:1c287fe42d43 113 __data_end__ = .;
mbed_official 310:1c287fe42d43 114
mbed_official 310:1c287fe42d43 115 } > RAM
mbed_official 310:1c287fe42d43 116
mbed_official 310:1c287fe42d43 117 .bss :
mbed_official 310:1c287fe42d43 118 {
mbed_official 310:1c287fe42d43 119 . = ALIGN(4);
mbed_official 310:1c287fe42d43 120 __bss_start__ = .;
mbed_official 310:1c287fe42d43 121 *(.bss*)
mbed_official 310:1c287fe42d43 122 *(COMMON)
mbed_official 310:1c287fe42d43 123 . = ALIGN(4);
mbed_official 310:1c287fe42d43 124 __bss_end__ = .;
mbed_official 310:1c287fe42d43 125 } > RAM
mbed_official 310:1c287fe42d43 126
mbed_official 310:1c287fe42d43 127 .heap (COPY):
mbed_official 310:1c287fe42d43 128 {
mbed_official 310:1c287fe42d43 129 __end__ = .;
mbed_official 310:1c287fe42d43 130 end = __end__;
mbed_official 310:1c287fe42d43 131 *(.heap*)
mbed_official 310:1c287fe42d43 132 __HeapLimit = .;
mbed_official 310:1c287fe42d43 133 } > RAM
mbed_official 310:1c287fe42d43 134
mbed_official 310:1c287fe42d43 135 /* .stack_dummy section doesn't contains any symbols. It is only
mbed_official 310:1c287fe42d43 136 * used for linker to calculate size of stack sections, and assign
mbed_official 310:1c287fe42d43 137 * values to stack symbols later */
mbed_official 310:1c287fe42d43 138 .stack_dummy (COPY):
mbed_official 310:1c287fe42d43 139 {
mbed_official 310:1c287fe42d43 140 *(.stack*)
mbed_official 310:1c287fe42d43 141 } > RAM
mbed_official 310:1c287fe42d43 142
mbed_official 310:1c287fe42d43 143 /* Set stack top to end of RAM, and stack limit move down by
mbed_official 310:1c287fe42d43 144 * size of stack_dummy section */
mbed_official 310:1c287fe42d43 145 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
mbed_official 310:1c287fe42d43 146 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
mbed_official 310:1c287fe42d43 147 PROVIDE(__stack = __StackTop);
mbed_official 310:1c287fe42d43 148
mbed_official 310:1c287fe42d43 149 /* Check if data + heap + stack exceeds RAM limit */
mbed_official 310:1c287fe42d43 150 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
mbed_official 310:1c287fe42d43 151 }