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_KL25Z/TOOLCHAIN_GCC_ARM/MKL25Z4.ld@89:552587b429a1, 2014-09-12 (annotated)

Committer:
bogdanm
Date:
Fri Sep 12 16:41:52 2014 +0100
Revision:
89:552587b429a1
Parent:
69:4a7918f48478
Child:
171:3a7713b1edbc
Release 89 of the mbed library



Main changes:



- low power optimizations for Nordic targets

- code structure changes for Freescale K64F targets

- bug fixes in various backends

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 69:4a7918f48478 1 /*
emilmont 69:4a7918f48478 2 * KL25Z ARM GCC linker script file
emilmont 69:4a7918f48478 3 */
emilmont 69:4a7918f48478 4
emilmont 69:4a7918f48478 5 MEMORY
emilmont 69:4a7918f48478 6 {
emilmont 69:4a7918f48478 7 VECTORS (rx) : ORIGIN = 0x00000000, LENGTH = 0x00000400
emilmont 69:4a7918f48478 8 FLASH_PROTECTION (rx) : ORIGIN = 0x00000400, LENGTH = 0x00000010
emilmont 69:4a7918f48478 9 FLASH (rx) : ORIGIN = 0x00000410, LENGTH = 128K - 0x00000410
emilmont 69:4a7918f48478 10 RAM (rwx) : ORIGIN = 0x1FFFF0C0, LENGTH = 16K - 0xC0
emilmont 69:4a7918f48478 11 }
emilmont 69:4a7918f48478 12
emilmont 69:4a7918f48478 13 /* Linker script to place sections and symbol values. Should be used together
emilmont 69:4a7918f48478 14 * with other linker script that defines memory regions FLASH and RAM.
emilmont 69:4a7918f48478 15 * It references following symbols, which must be defined in code:
emilmont 69:4a7918f48478 16 * _reset_init : Entry of reset handler
emilmont 69:4a7918f48478 17 *
emilmont 69:4a7918f48478 18 * It defines following symbols, which code can use without definition:
emilmont 69:4a7918f48478 19 * __exidx_start
emilmont 69:4a7918f48478 20 * __exidx_end
emilmont 69:4a7918f48478 21 * __etext
emilmont 69:4a7918f48478 22 * __data_start__
emilmont 69:4a7918f48478 23 * __preinit_array_start
emilmont 69:4a7918f48478 24 * __preinit_array_end
emilmont 69:4a7918f48478 25 * __init_array_start
emilmont 69:4a7918f48478 26 * __init_array_end
emilmont 69:4a7918f48478 27 * __fini_array_start
emilmont 69:4a7918f48478 28 * __fini_array_end
emilmont 69:4a7918f48478 29 * __data_end__
emilmont 69:4a7918f48478 30 * __bss_start__
emilmont 69:4a7918f48478 31 * __bss_end__
emilmont 69:4a7918f48478 32 * __end__
emilmont 69:4a7918f48478 33 * end
emilmont 69:4a7918f48478 34 * __HeapLimit
emilmont 69:4a7918f48478 35 * __StackLimit
emilmont 69:4a7918f48478 36 * __StackTop
emilmont 69:4a7918f48478 37 * __stack
emilmont 69:4a7918f48478 38 */
emilmont 69:4a7918f48478 39 ENTRY(Reset_Handler)
emilmont 69:4a7918f48478 40
emilmont 69:4a7918f48478 41 SECTIONS
emilmont 69:4a7918f48478 42 {
emilmont 69:4a7918f48478 43 .isr_vector :
emilmont 69:4a7918f48478 44 {
emilmont 69:4a7918f48478 45 __vector_table = .;
emilmont 69:4a7918f48478 46 KEEP(*(.vector_table))
emilmont 69:4a7918f48478 47 *(.text.Reset_Handler)
emilmont 69:4a7918f48478 48 *(.text.System_Init)
emilmont 69:4a7918f48478 49 . = ALIGN(4);
emilmont 69:4a7918f48478 50 } > VECTORS
emilmont 69:4a7918f48478 51
emilmont 69:4a7918f48478 52 .flash_protect :
emilmont 69:4a7918f48478 53 {
emilmont 69:4a7918f48478 54 KEEP(*(.kinetis_flash_config_field))
emilmont 69:4a7918f48478 55 . = ALIGN(4);
emilmont 69:4a7918f48478 56 } > FLASH_PROTECTION
emilmont 69:4a7918f48478 57
emilmont 69:4a7918f48478 58 .text :
emilmont 69:4a7918f48478 59 {
emilmont 69:4a7918f48478 60 *(.text*)
emilmont 69:4a7918f48478 61
emilmont 69:4a7918f48478 62 KEEP(*(.init))
emilmont 69:4a7918f48478 63 KEEP(*(.fini))
emilmont 69:4a7918f48478 64
emilmont 69:4a7918f48478 65 /* .ctors */
emilmont 69:4a7918f48478 66 *crtbegin.o(.ctors)
emilmont 69:4a7918f48478 67 *crtbegin?.o(.ctors)
emilmont 69:4a7918f48478 68 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
emilmont 69:4a7918f48478 69 *(SORT(.ctors.*))
emilmont 69:4a7918f48478 70 *(.ctors)
emilmont 69:4a7918f48478 71
emilmont 69:4a7918f48478 72 /* .dtors */
emilmont 69:4a7918f48478 73 *crtbegin.o(.dtors)
emilmont 69:4a7918f48478 74 *crtbegin?.o(.dtors)
emilmont 69:4a7918f48478 75 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
emilmont 69:4a7918f48478 76 *(SORT(.dtors.*))
emilmont 69:4a7918f48478 77 *(.dtors)
emilmont 69:4a7918f48478 78
emilmont 69:4a7918f48478 79 *(.rodata*)
emilmont 69:4a7918f48478 80
emilmont 69:4a7918f48478 81 KEEP(*(.eh_frame*))
emilmont 69:4a7918f48478 82 } > FLASH
emilmont 69:4a7918f48478 83
emilmont 69:4a7918f48478 84 .ARM.extab :
emilmont 69:4a7918f48478 85 {
emilmont 69:4a7918f48478 86 *(.ARM.extab* .gnu.linkonce.armextab.*)
emilmont 69:4a7918f48478 87 } > FLASH
emilmont 69:4a7918f48478 88
emilmont 69:4a7918f48478 89 __exidx_start = .;
emilmont 69:4a7918f48478 90 .ARM.exidx :
emilmont 69:4a7918f48478 91 {
emilmont 69:4a7918f48478 92 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
emilmont 69:4a7918f48478 93 } > FLASH
emilmont 69:4a7918f48478 94 __exidx_end = .;
emilmont 69:4a7918f48478 95
emilmont 69:4a7918f48478 96 __etext = .;
emilmont 69:4a7918f48478 97
emilmont 69:4a7918f48478 98 .data : AT (__etext)
emilmont 69:4a7918f48478 99 {
emilmont 69:4a7918f48478 100 __data_start__ = .;
emilmont 69:4a7918f48478 101 *(vtable)
emilmont 69:4a7918f48478 102 *(.data*)
emilmont 69:4a7918f48478 103
emilmont 69:4a7918f48478 104 . = ALIGN(4);
emilmont 69:4a7918f48478 105 /* preinit data */
emilmont 69:4a7918f48478 106 PROVIDE_HIDDEN (__preinit_array_start = .);
emilmont 69:4a7918f48478 107 KEEP(*(.preinit_array))
emilmont 69:4a7918f48478 108 PROVIDE_HIDDEN (__preinit_array_end = .);
emilmont 69:4a7918f48478 109
emilmont 69:4a7918f48478 110 . = ALIGN(4);
emilmont 69:4a7918f48478 111 /* init data */
emilmont 69:4a7918f48478 112 PROVIDE_HIDDEN (__init_array_start = .);
emilmont 69:4a7918f48478 113 KEEP(*(SORT(.init_array.*)))
emilmont 69:4a7918f48478 114 KEEP(*(.init_array))
emilmont 69:4a7918f48478 115 PROVIDE_HIDDEN (__init_array_end = .);
emilmont 69:4a7918f48478 116
emilmont 69:4a7918f48478 117
emilmont 69:4a7918f48478 118 . = ALIGN(4);
emilmont 69:4a7918f48478 119 /* finit data */
emilmont 69:4a7918f48478 120 PROVIDE_HIDDEN (__fini_array_start = .);
emilmont 69:4a7918f48478 121 KEEP(*(SORT(.fini_array.*)))
emilmont 69:4a7918f48478 122 KEEP(*(.fini_array))
emilmont 69:4a7918f48478 123 PROVIDE_HIDDEN (__fini_array_end = .);
emilmont 69:4a7918f48478 124
emilmont 69:4a7918f48478 125 . = ALIGN(4);
emilmont 69:4a7918f48478 126 /* All data end */
emilmont 69:4a7918f48478 127 __data_end__ = .;
emilmont 69:4a7918f48478 128
emilmont 69:4a7918f48478 129 } > RAM
emilmont 69:4a7918f48478 130
emilmont 69:4a7918f48478 131 .bss :
emilmont 69:4a7918f48478 132 {
emilmont 69:4a7918f48478 133 __bss_start__ = .;
emilmont 69:4a7918f48478 134 *(.bss*)
emilmont 69:4a7918f48478 135 *(COMMON)
emilmont 69:4a7918f48478 136 __bss_end__ = .;
emilmont 69:4a7918f48478 137 } > RAM
emilmont 69:4a7918f48478 138
emilmont 69:4a7918f48478 139 .heap :
emilmont 69:4a7918f48478 140 {
emilmont 69:4a7918f48478 141 __end__ = .;
emilmont 69:4a7918f48478 142 end = __end__;
emilmont 69:4a7918f48478 143 *(.heap*)
emilmont 69:4a7918f48478 144 __HeapLimit = .;
emilmont 69:4a7918f48478 145 } > RAM
emilmont 69:4a7918f48478 146
emilmont 69:4a7918f48478 147 /* .stack_dummy section doesn't contains any symbols. It is only
emilmont 69:4a7918f48478 148 * used for linker to calculate size of stack sections, and assign
emilmont 69:4a7918f48478 149 * values to stack symbols later */
emilmont 69:4a7918f48478 150 .stack_dummy :
emilmont 69:4a7918f48478 151 {
emilmont 69:4a7918f48478 152 *(.stack)
emilmont 69:4a7918f48478 153 } > RAM
emilmont 69:4a7918f48478 154
emilmont 69:4a7918f48478 155 /* Set stack top to end of RAM, and stack limit move down by
emilmont 69:4a7918f48478 156 * size of stack_dummy section */
emilmont 69:4a7918f48478 157 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
emilmont 69:4a7918f48478 158 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
emilmont 69:4a7918f48478 159 PROVIDE(__stack = __StackTop);
emilmont 69:4a7918f48478 160
emilmont 69:4a7918f48478 161 /* Check if data + heap + stack exceeds RAM limit */
emilmont 69:4a7918f48478 162 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
emilmont 69:4a7918f48478 163 }