tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC11UXX/TOOLCHAIN_GCC_ARM/TARGET_OC_MBUINO/LPC11U24.ld

   1 /* Linker script for mbed LPC1768 */
   2
   3 /* Linker script to configure memory regions. */
   4 MEMORY
   5 {
   6   FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 32K
   7   RAM (rwx) : ORIGIN = 0x100000C0, LENGTH = 0x1740
   8   USB_RAM (rwx): ORIGIN = 0x20004000, LENGTH = 0x800
   9 }
  10
  11 /* Linker script to place sections and symbol values. Should be used together
  12  * with other linker script that defines memory regions FLASH and RAM.
  13  * It references following symbols, which must be defined in code:
  14  *   Reset_Handler : Entry of reset handler
  15  *
  16  * It defines following symbols, which code can use without definition:
  17  *   __exidx_start
  18  *   __exidx_end
  19  *   __etext
  20  *   __data_start__
  21  *   __preinit_array_start
  22  *   __preinit_array_end
  23  *   __init_array_start
  24  *   __init_array_end
  25  *   __fini_array_start
  26  *   __fini_array_end
  27  *   __data_end__
  28  *   __bss_start__
  29  *   __bss_end__
  30  *   __end__
  31  *   end
  32  *   __HeapLimit
  33  *   __StackLimit
  34  *   __StackTop
  35  *   __stack
  36  */
  37 ENTRY(Reset_Handler)
  38
  39 SECTIONS
  40 {
  41     .text :
  42     {
  43         KEEP(*(.isr_vector))
  44         *(.text.Reset_Handler)
  45         *(.text.SystemInit)
  46
  47         /* Only vectors and code running at reset are safe to be in first 512
  48            bytes since RAM can be mapped into this area for RAM based interrupt
  49            vectors. */
  50         . = 0x00000200;
  51         *(.text*)
  52
  53         KEEP(*(.init))
  54         KEEP(*(.fini))
  55
  56         /* .ctors */
  57         *crtbegin.o(.ctors)
  58         *crtbegin?.o(.ctors)
  59         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
  60         *(SORT(.ctors.*))
  61         *(.ctors)
  62
  63         /* .dtors */
  64         *crtbegin.o(.dtors)
  65         *crtbegin?.o(.dtors)
  66         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
  67         *(SORT(.dtors.*))
  68         *(.dtors)
  69
  70         *(.rodata*)
  71
  72         KEEP(*(.eh_frame*))
  73     } > FLASH
  74
  75     .ARM.extab :
  76     {
  77         *(.ARM.extab* .gnu.linkonce.armextab.*)
  78     } > FLASH
  79
  80     __exidx_start = .;
  81     .ARM.exidx :
  82     {
  83         *(.ARM.exidx* .gnu.linkonce.armexidx.*)
  84     } > FLASH
  85     __exidx_end = .;
  86
  87     __etext = .;
  88
  89     .data : AT (__etext)
  90     {
  91         __data_start__ = .;
  92         *(vtable)
  93         *(.data*)
  94
  95         . = ALIGN(4);
  96         /* preinit data */
  97         PROVIDE (__preinit_array_start = .);
  98         KEEP(*(.preinit_array))
  99         PROVIDE (__preinit_array_end = .);
 100
 101         . = ALIGN(4);
 102         /* init data */
 103         PROVIDE (__init_array_start = .);
 104         KEEP(*(SORT(.init_array.*)))
 105         KEEP(*(.init_array))
 106         PROVIDE (__init_array_end = .);
 107
 108
 109         . = ALIGN(4);
 110         /* finit data */
 111         PROVIDE (__fini_array_start = .);
 112         KEEP(*(SORT(.fini_array.*)))
 113         KEEP(*(.fini_array))
 114         PROVIDE (__fini_array_end = .);
 115
 116         . = ALIGN(4);
 117         /* All data end */
 118         __data_end__ = .;
 119
 120     } > RAM
 121
 122     .bss :
 123     {
 124         __bss_start__ = .;
 125         *(.bss*)
 126         *(COMMON)
 127         __bss_end__ = .;
 128     } > RAM
 129
 130     .heap :
 131     {
 132         __end__ = .;
 133         end = __end__;
 134         *(.heap*)
 135         __HeapLimit = .;
 136     } > RAM
 137
 138     /* .stack_dummy section doesn't contains any symbols. It is only
 139      * used for linker to calculate size of stack sections, and assign
 140      * values to stack symbols later */
 141     .stack_dummy :
 142     {
 143         *(.stack)
 144     } > RAM
 145
 146     /* Set stack top to end of RAM, and stack limit move down by
 147      * size of stack_dummy section */
 148     __StackTop = ORIGIN(RAM) + LENGTH(RAM);
 149     __StackLimit = __StackTop - SIZEOF(.stack_dummy);
 150     PROVIDE(__stack = __StackTop);
 151
 152     /* Check if data + heap + stack exceeds RAM limit */
 153     ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
 154 }