tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC82X/TARGET_LPC824/TOOLCHAIN_GCC_ARM/LPC824.ld

   1 /* Linker script for mbed LPC824-GCC-ARM based on LPC1114-GCC-ARM-LPC1114.ld */
   2
   3 /* Linker script to configure memory regions. */
   4 MEMORY
   5 {
   6   /* Define each memory region */
   7   FLASH (rx) : ORIGIN = 0x0, LENGTH = 0x8000 /* 32K bytes */
   8   RAM (rwx) : ORIGIN = 0x10000000+0xC0, LENGTH = 0x2000-0xC0 /* 8K bytes */
   9
  10
  11 }
  12
  13 /* Linker script to place sections and symbol values. Should be used together
  14  * with other linker script that defines memory regions FLASH and RAM.
  15  * It references following symbols, which must be defined in code:
  16  *   Reset_Handler : Entry of reset handler
  17  *
  18  * It defines following symbols, which code can use without definition:
  19  *   __exidx_start
  20  *   __exidx_end
  21  *   __etext
  22  *   __data_start__
  23  *   __preinit_array_start
  24  *   __preinit_array_end
  25  *   __init_array_start
  26  *   __init_array_end
  27  *   __fini_array_start
  28  *   __fini_array_end
  29  *   __data_end__
  30  *   __bss_start__
  31  *   __bss_end__
  32  *   __end__
  33  *   end
  34  *   __HeapLimit
  35  *   __StackLimit
  36  *   __StackTop
  37  *   __stack
  38  */
  39 ENTRY(Reset_Handler)
  40
  41 SECTIONS
  42 {
  43     .text :
  44     {
  45         KEEP(*(.isr_vector))
  46                 *(.text.Reset_Handler)
  47         *(.text.SystemInit)
  48                 . = 0x200;
  49         *(.text*)
  50
  51         KEEP(*(.init))
  52         KEEP(*(.fini))
  53
  54         /* .ctors */
  55         *crtbegin.o(.ctors)
  56         *crtbegin?.o(.ctors)
  57         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
  58         *(SORT(.ctors.*))
  59         *(.ctors)
  60
  61         /* .dtors */
  62         *crtbegin.o(.dtors)
  63         *crtbegin?.o(.dtors)
  64         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
  65         *(SORT(.dtors.*))
  66         *(.dtors)
  67
  68         *(.rodata*)
  69
  70         KEEP(*(.eh_frame*))
  71     } > FLASH
  72
  73     .ARM.extab :
  74     {
  75         *(.ARM.extab* .gnu.linkonce.armextab.*)
  76     } > FLASH
  77
  78     __exidx_start = .;
  79     .ARM.exidx :
  80     {
  81         *(.ARM.exidx* .gnu.linkonce.armexidx.*)
  82     } > FLASH
  83     __exidx_end = .;
  84
  85     __etext = .;
  86
  87     .data : AT (__etext)
  88     {
  89         __data_start__ = .;
  90         *(vtable)
  91         *(.data*)
  92
  93         . = ALIGN(4);
  94         /* preinit data */
  95         PROVIDE (__preinit_array_start = .);
  96         KEEP(*(.preinit_array))
  97         PROVIDE (__preinit_array_end = .);
  98
  99         . = ALIGN(4);
 100         /* init data */
 101         PROVIDE (__init_array_start = .);
 102         KEEP(*(SORT(.init_array.*)))
 103         KEEP(*(.init_array))
 104         PROVIDE (__init_array_end = .);
 105
 106
 107         . = ALIGN(4);
 108         /* finit data */
 109         PROVIDE (__fini_array_start = .);
 110         KEEP(*(SORT(.fini_array.*)))
 111         KEEP(*(.fini_array))
 112         PROVIDE (__fini_array_end = .);
 113
 114         . = ALIGN(4);
 115         /* All data end */
 116         __data_end__ = .;
 117
 118     } > RAM
 119
 120     .bss :
 121     {
 122         __bss_start__ = .;
 123         *(.bss*)
 124         *(COMMON)
 125         __bss_end__ = .;
 126     } > RAM
 127
 128     .heap :
 129     {
 130         __end__ = .;
 131         end = __end__;
 132         *(.heap*)
 133         __HeapLimit = .;
 134     } > RAM
 135
 136     /* .stack_dummy section doesn't contains any symbols. It is only
 137      * used for linker to calculate size of stack sections, and assign
 138      * values to stack symbols later */
 139     .stack_dummy :
 140     {
 141         *(.stack)
 142     } > RAM
 143
 144     /* Set stack top to end of RAM, and stack limit move down by
 145      * size of stack_dummy section */
 146     __StackTop = ORIGIN(RAM) + LENGTH(RAM);
 147     __StackLimit = __StackTop - SIZEOF(.stack_dummy);
 148     PROVIDE(__stack = __StackTop);
 149
 150     /* Check if data + heap + stack exceeds RAM limit */
 151     ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
 152 }