tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L1/TARGET_MOTE_L152RC/TOOLCHAIN_GCC_ARM/STM32L152XC.ld

   1 /* Linker script to configure memory regions. */
   2 MEMORY
   3 {
   4   /* 256KB FLASH, 32KB RAM, Reserve up till 0x13C. There are 0x73 vectors = 292
   5    * bytes (0x124) in RAM. But all GCC scripts seem to require BootRAM @0x138
   6    */
   7   FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 256k
   8   RAM (rwx) : ORIGIN = 0x2000013C, LENGTH = 0x8000-0x13C
   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  *   _estack
  37  */
  38 ENTRY(Reset_Handler)
  39
  40 SECTIONS
  41 {
  42     .text :
  43     {
  44         KEEP(*(.isr_vector))
  45         *(.text*)
  46         KEEP(*(.init))
  47         KEEP(*(.fini))
  48
  49         /* .ctors */
  50         *crtbegin.o(.ctors)
  51         *crtbegin?.o(.ctors)
  52         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
  53         *(SORT(.ctors.*))
  54         *(.ctors)
  55
  56         /* .dtors */
  57         *crtbegin.o(.dtors)
  58         *crtbegin?.o(.dtors)
  59         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
  60         *(SORT(.dtors.*))
  61         *(.dtors)
  62
  63         *(.rodata*)
  64
  65         KEEP(*(.eh_frame*))
  66     } > FLASH
  67
  68     .ARM.extab :
  69     {
  70         *(.ARM.extab* .gnu.linkonce.armextab.*)
  71     } > FLASH
  72
  73     __exidx_start = .;
  74     .ARM.exidx :
  75     {
  76         *(.ARM.exidx* .gnu.linkonce.armexidx.*)
  77     } > FLASH
  78     __exidx_end = .;
  79
  80     __etext = .;
  81     _sidata = .;
  82
  83     .data : AT (__etext)
  84     {
  85         __data_start__ = .;
  86         _sdata = .;
  87         *(vtable)
  88         *(.data*)
  89
  90         . = ALIGN(4);
  91         /* preinit data */
  92         PROVIDE_HIDDEN (__preinit_array_start = .);
  93         KEEP(*(.preinit_array))
  94         PROVIDE_HIDDEN (__preinit_array_end = .);
  95
  96         . = ALIGN(4);
  97         /* init data */
  98         PROVIDE_HIDDEN (__init_array_start = .);
  99         KEEP(*(SORT(.init_array.*)))
 100         KEEP(*(.init_array))
 101         PROVIDE_HIDDEN (__init_array_end = .);
 102
 103
 104         . = ALIGN(4);
 105         /* finit data */
 106         PROVIDE_HIDDEN (__fini_array_start = .);
 107         KEEP(*(SORT(.fini_array.*)))
 108         KEEP(*(.fini_array))
 109         PROVIDE_HIDDEN (__fini_array_end = .);
 110
 111         KEEP(*(.jcr*))
 112         . = ALIGN(4);
 113         /* All data end */
 114         __data_end__ = .;
 115         _edata = .;
 116
 117     } > RAM
 118
 119     .bss :
 120     {
 121         . = ALIGN(4);
 122         __bss_start__ = .;
 123         _sbss = .;
 124         *(.bss*)
 125         *(COMMON)
 126         . = ALIGN(4);
 127         __bss_end__ = .;
 128         _ebss = .;
 129     } > RAM
 130
 131     .heap (COPY):
 132     {
 133         __end__ = .;
 134         end = __end__;
 135         *(.heap*)
 136         __HeapLimit = .;
 137     } > RAM
 138
 139     /* .stack_dummy section doesn't contains any symbols. It is only
 140      * used for linker to calculate size of stack sections, and assign
 141      * values to stack symbols later */
 142     .stack_dummy (COPY):
 143     {
 144         *(.stack*)
 145     } > RAM
 146
 147     /* Set stack top to end of RAM, and stack limit move down by
 148      * size of stack_dummy section */
 149     __StackTop = ORIGIN(RAM) + LENGTH(RAM);
 150     _estack = __StackTop;
 151     __StackLimit = __StackTop - SIZEOF(.stack_dummy);
 152     PROVIDE(__stack = __StackTop);
 153
 154     /* Check if data + heap + stack exceeds RAM limit */
 155     ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
 156 }