marcus chiou / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/TOOLCHAIN_GCC_ARM/TARGET_MCU_NRF51_16K_S110/NRF51822.ld@598:2d5fc5624619, 2015-07-29 (annotated)

Committer:
mbed_official
Date:
Wed Jul 29 09:45:09 2015 +0100
Revision:
598:2d5fc5624619
Child:
613:bc40b8d2aec4
Synchronized with git revision e87fec7b35d45d8663318a40a4a9fb58f91d0237



Full URL: https://github.com/mbedmicro/mbed/commit/e87fec7b35d45d8663318a40a4a9fb58f91d0237/



Microbit addition

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 598:2d5fc5624619 1 /* Linker script to configure memory regions. */
mbed_official 598:2d5fc5624619 2
mbed_official 598:2d5fc5624619 3 MEMORY
mbed_official 598:2d5fc5624619 4 {
mbed_official 598:2d5fc5624619 5 FLASH (rx) : ORIGIN = 0x00016000, LENGTH = 0x2A000
mbed_official 598:2d5fc5624619 6 RAM (rwx) : ORIGIN = 0x20002000, LENGTH = 0x2000
mbed_official 598:2d5fc5624619 7 }
mbed_official 598:2d5fc5624619 8
mbed_official 598:2d5fc5624619 9 OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
mbed_official 598:2d5fc5624619 10
mbed_official 598:2d5fc5624619 11 /* Linker script to place sections and symbol values. Should be used together
mbed_official 598:2d5fc5624619 12 * with other linker script that defines memory regions FLASH and RAM.
mbed_official 598:2d5fc5624619 13 * It references following symbols, which must be defined in code:
mbed_official 598:2d5fc5624619 14 * Reset_Handler : Entry of reset handler
mbed_official 598:2d5fc5624619 15 *
mbed_official 598:2d5fc5624619 16 * It defines following symbols, which code can use without definition:
mbed_official 598:2d5fc5624619 17 * __exidx_start
mbed_official 598:2d5fc5624619 18 * __exidx_end
mbed_official 598:2d5fc5624619 19 * __etext
mbed_official 598:2d5fc5624619 20 * __data_start__
mbed_official 598:2d5fc5624619 21 * __preinit_array_start
mbed_official 598:2d5fc5624619 22 * __preinit_array_end
mbed_official 598:2d5fc5624619 23 * __init_array_start
mbed_official 598:2d5fc5624619 24 * __init_array_end
mbed_official 598:2d5fc5624619 25 * __fini_array_start
mbed_official 598:2d5fc5624619 26 * __fini_array_end
mbed_official 598:2d5fc5624619 27 * __data_end__
mbed_official 598:2d5fc5624619 28 * __bss_start__
mbed_official 598:2d5fc5624619 29 * __bss_end__
mbed_official 598:2d5fc5624619 30 * __end__
mbed_official 598:2d5fc5624619 31 * end
mbed_official 598:2d5fc5624619 32 * __HeapLimit
mbed_official 598:2d5fc5624619 33 * __StackLimit
mbed_official 598:2d5fc5624619 34 * __StackTop
mbed_official 598:2d5fc5624619 35 * __stack
mbed_official 598:2d5fc5624619 36 */
mbed_official 598:2d5fc5624619 37 ENTRY(Reset_Handler)
mbed_official 598:2d5fc5624619 38
mbed_official 598:2d5fc5624619 39 SECTIONS
mbed_official 598:2d5fc5624619 40 {
mbed_official 598:2d5fc5624619 41 .text :
mbed_official 598:2d5fc5624619 42 {
mbed_official 598:2d5fc5624619 43 KEEP(*(.Vectors))
mbed_official 598:2d5fc5624619 44 *(.text*)
mbed_official 598:2d5fc5624619 45
mbed_official 598:2d5fc5624619 46 KEEP(*(.init))
mbed_official 598:2d5fc5624619 47 KEEP(*(.fini))
mbed_official 598:2d5fc5624619 48
mbed_official 598:2d5fc5624619 49 /* .ctors */
mbed_official 598:2d5fc5624619 50 *crtbegin.o(.ctors)
mbed_official 598:2d5fc5624619 51 *crtbegin?.o(.ctors)
mbed_official 598:2d5fc5624619 52 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
mbed_official 598:2d5fc5624619 53 *(SORT(.ctors.*))
mbed_official 598:2d5fc5624619 54 *(.ctors)
mbed_official 598:2d5fc5624619 55
mbed_official 598:2d5fc5624619 56 /* .dtors */
mbed_official 598:2d5fc5624619 57 *crtbegin.o(.dtors)
mbed_official 598:2d5fc5624619 58 *crtbegin?.o(.dtors)
mbed_official 598:2d5fc5624619 59 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
mbed_official 598:2d5fc5624619 60 *(SORT(.dtors.*))
mbed_official 598:2d5fc5624619 61 *(.dtors)
mbed_official 598:2d5fc5624619 62
mbed_official 598:2d5fc5624619 63 *(.rodata*)
mbed_official 598:2d5fc5624619 64
mbed_official 598:2d5fc5624619 65 KEEP(*(.eh_frame*))
mbed_official 598:2d5fc5624619 66 } > FLASH
mbed_official 598:2d5fc5624619 67
mbed_official 598:2d5fc5624619 68
mbed_official 598:2d5fc5624619 69 .ARM.extab :
mbed_official 598:2d5fc5624619 70 {
mbed_official 598:2d5fc5624619 71 *(.ARM.extab* .gnu.linkonce.armextab.*)
mbed_official 598:2d5fc5624619 72 } > FLASH
mbed_official 598:2d5fc5624619 73
mbed_official 598:2d5fc5624619 74 __exidx_start = .;
mbed_official 598:2d5fc5624619 75 .ARM.exidx :
mbed_official 598:2d5fc5624619 76 {
mbed_official 598:2d5fc5624619 77 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
mbed_official 598:2d5fc5624619 78 } > FLASH
mbed_official 598:2d5fc5624619 79 __exidx_end = .;
mbed_official 598:2d5fc5624619 80
mbed_official 598:2d5fc5624619 81 __etext = .;
mbed_official 598:2d5fc5624619 82
mbed_official 598:2d5fc5624619 83 .data : AT (__etext)
mbed_official 598:2d5fc5624619 84 {
mbed_official 598:2d5fc5624619 85 __data_start__ = .;
mbed_official 598:2d5fc5624619 86 *(vtable)
mbed_official 598:2d5fc5624619 87 *(.data*)
mbed_official 598:2d5fc5624619 88
mbed_official 598:2d5fc5624619 89 . = ALIGN(4);
mbed_official 598:2d5fc5624619 90 /* preinit data */
mbed_official 598:2d5fc5624619 91 PROVIDE_HIDDEN (__preinit_array_start = .);
mbed_official 598:2d5fc5624619 92 KEEP(*(.preinit_array))
mbed_official 598:2d5fc5624619 93 PROVIDE_HIDDEN (__preinit_array_end = .);
mbed_official 598:2d5fc5624619 94
mbed_official 598:2d5fc5624619 95 . = ALIGN(4);
mbed_official 598:2d5fc5624619 96 /* init data */
mbed_official 598:2d5fc5624619 97 PROVIDE_HIDDEN (__init_array_start = .);
mbed_official 598:2d5fc5624619 98 KEEP(*(SORT(.init_array.*)))
mbed_official 598:2d5fc5624619 99 KEEP(*(.init_array))
mbed_official 598:2d5fc5624619 100 PROVIDE_HIDDEN (__init_array_end = .);
mbed_official 598:2d5fc5624619 101
mbed_official 598:2d5fc5624619 102
mbed_official 598:2d5fc5624619 103 . = ALIGN(4);
mbed_official 598:2d5fc5624619 104 /* finit data */
mbed_official 598:2d5fc5624619 105 PROVIDE_HIDDEN (__fini_array_start = .);
mbed_official 598:2d5fc5624619 106 KEEP(*(SORT(.fini_array.*)))
mbed_official 598:2d5fc5624619 107 KEEP(*(.fini_array))
mbed_official 598:2d5fc5624619 108 PROVIDE_HIDDEN (__fini_array_end = .);
mbed_official 598:2d5fc5624619 109
mbed_official 598:2d5fc5624619 110 *(.jcr)
mbed_official 598:2d5fc5624619 111 . = ALIGN(4);
mbed_official 598:2d5fc5624619 112 /* All data end */
mbed_official 598:2d5fc5624619 113 __data_end__ = .;
mbed_official 598:2d5fc5624619 114
mbed_official 598:2d5fc5624619 115 } > RAM
mbed_official 598:2d5fc5624619 116
mbed_official 598:2d5fc5624619 117 .bss :
mbed_official 598:2d5fc5624619 118 {
mbed_official 598:2d5fc5624619 119 . = ALIGN(4);
mbed_official 598:2d5fc5624619 120 __bss_start__ = .;
mbed_official 598:2d5fc5624619 121 *(.bss*)
mbed_official 598:2d5fc5624619 122 *(COMMON)
mbed_official 598:2d5fc5624619 123 . = ALIGN(4);
mbed_official 598:2d5fc5624619 124 __bss_end__ = .;
mbed_official 598:2d5fc5624619 125 } > RAM
mbed_official 598:2d5fc5624619 126
mbed_official 598:2d5fc5624619 127 .heap (COPY):
mbed_official 598:2d5fc5624619 128 {
mbed_official 598:2d5fc5624619 129 __end__ = .;
mbed_official 598:2d5fc5624619 130 end = __end__;
mbed_official 598:2d5fc5624619 131 *(.heap*)
mbed_official 598:2d5fc5624619 132 __HeapLimit = .;
mbed_official 598:2d5fc5624619 133 } > RAM
mbed_official 598:2d5fc5624619 134
mbed_official 598:2d5fc5624619 135 /* .stack_dummy section doesn't contains any symbols. It is only
mbed_official 598:2d5fc5624619 136 * used for linker to calculate size of stack sections, and assign
mbed_official 598:2d5fc5624619 137 * values to stack symbols later */
mbed_official 598:2d5fc5624619 138 .stack_dummy (COPY):
mbed_official 598:2d5fc5624619 139 {
mbed_official 598:2d5fc5624619 140 *(.stack*)
mbed_official 598:2d5fc5624619 141 } > RAM
mbed_official 598:2d5fc5624619 142
mbed_official 598:2d5fc5624619 143 /* Set stack top to end of RAM, and stack limit move down by
mbed_official 598:2d5fc5624619 144 * size of stack_dummy section */
mbed_official 598:2d5fc5624619 145 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
mbed_official 598:2d5fc5624619 146 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
mbed_official 598:2d5fc5624619 147 PROVIDE(__stack = __StackTop);
mbed_official 598:2d5fc5624619 148
mbed_official 598:2d5fc5624619 149 /* Check if data + heap + stack exceeds RAM limit */
mbed_official 598:2d5fc5624619 150 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
mbed_official 598:2d5fc5624619 151 }