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TARGET_NUCLEO_F103RB/TOOLCHAIN_GCC_ARM/STM32F103XB.ld@99:7f6c6de930c0, 2015-05-03 (annotated)

Committer:
Mikchel
Date:
Sun May 03 16:04:42 2015 +0000
Revision:
99:7f6c6de930c0
Parent:
96:487b796308b0 
12

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 96:487b796308b0 1 /* Linker script to configure memory regions. */
Kojto 96:487b796308b0 2 MEMORY
Kojto 96:487b796308b0 3 {
Kojto 96:487b796308b0 4 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 128K
Kojto 96:487b796308b0 5 RAM (rwx) : ORIGIN = 0x200000EC, LENGTH = 20K - 0xEC
Kojto 96:487b796308b0 6 }
Kojto 96:487b796308b0 7
Kojto 96:487b796308b0 8 /* Linker script to place sections and symbol values. Should be used together
Kojto 96:487b796308b0 9 * with other linker script that defines memory regions FLASH and RAM.
Kojto 96:487b796308b0 10 * It references following symbols, which must be defined in code:
Kojto 96:487b796308b0 11 * Reset_Handler : Entry of reset handler
Kojto 96:487b796308b0 12 *
Kojto 96:487b796308b0 13 * It defines following symbols, which code can use without definition:
Kojto 96:487b796308b0 14 * __exidx_start
Kojto 96:487b796308b0 15 * __exidx_end
Kojto 96:487b796308b0 16 * __etext
Kojto 96:487b796308b0 17 * __data_start__
Kojto 96:487b796308b0 18 * __preinit_array_start
Kojto 96:487b796308b0 19 * __preinit_array_end
Kojto 96:487b796308b0 20 * __init_array_start
Kojto 96:487b796308b0 21 * __init_array_end
Kojto 96:487b796308b0 22 * __fini_array_start
Kojto 96:487b796308b0 23 * __fini_array_end
Kojto 96:487b796308b0 24 * __data_end__
Kojto 96:487b796308b0 25 * __bss_start__
Kojto 96:487b796308b0 26 * __bss_end__
Kojto 96:487b796308b0 27 * __end__
Kojto 96:487b796308b0 28 * end
Kojto 96:487b796308b0 29 * __HeapLimit
Kojto 96:487b796308b0 30 * __StackLimit
Kojto 96:487b796308b0 31 * __StackTop
Kojto 96:487b796308b0 32 * __stack
Kojto 96:487b796308b0 33 * _estack
Kojto 96:487b796308b0 34 */
Kojto 96:487b796308b0 35 ENTRY(Reset_Handler)
Kojto 96:487b796308b0 36
Kojto 96:487b796308b0 37 SECTIONS
Kojto 96:487b796308b0 38 {
Kojto 96:487b796308b0 39 .text :
Kojto 96:487b796308b0 40 {
Kojto 96:487b796308b0 41 KEEP(*(.isr_vector))
Kojto 96:487b796308b0 42 *(.text*)
Kojto 96:487b796308b0 43 KEEP(*(.init))
Kojto 96:487b796308b0 44 KEEP(*(.fini))
Kojto 96:487b796308b0 45
Kojto 96:487b796308b0 46 /* .ctors */
Kojto 96:487b796308b0 47 *crtbegin.o(.ctors)
Kojto 96:487b796308b0 48 *crtbegin?.o(.ctors)
Kojto 96:487b796308b0 49 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
Kojto 96:487b796308b0 50 *(SORT(.ctors.*))
Kojto 96:487b796308b0 51 *(.ctors)
Kojto 96:487b796308b0 52
Kojto 96:487b796308b0 53 /* .dtors */
Kojto 96:487b796308b0 54 *crtbegin.o(.dtors)
Kojto 96:487b796308b0 55 *crtbegin?.o(.dtors)
Kojto 96:487b796308b0 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
Kojto 96:487b796308b0 57 *(SORT(.dtors.*))
Kojto 96:487b796308b0 58 *(.dtors)
Kojto 96:487b796308b0 59
Kojto 96:487b796308b0 60 *(.rodata*)
Kojto 96:487b796308b0 61
Kojto 96:487b796308b0 62 KEEP(*(.eh_frame*))
Kojto 96:487b796308b0 63 } > FLASH
Kojto 96:487b796308b0 64
Kojto 96:487b796308b0 65 .ARM.extab :
Kojto 96:487b796308b0 66 {
Kojto 96:487b796308b0 67 *(.ARM.extab* .gnu.linkonce.armextab.*)
Kojto 96:487b796308b0 68 } > FLASH
Kojto 96:487b796308b0 69
Kojto 96:487b796308b0 70 __exidx_start = .;
Kojto 96:487b796308b0 71 .ARM.exidx :
Kojto 96:487b796308b0 72 {
Kojto 96:487b796308b0 73 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
Kojto 96:487b796308b0 74 } > FLASH
Kojto 96:487b796308b0 75 __exidx_end = .;
Kojto 96:487b796308b0 76
Kojto 96:487b796308b0 77 __etext = .;
Kojto 96:487b796308b0 78 _sidata = .;
Kojto 96:487b796308b0 79
Kojto 96:487b796308b0 80 .data : AT (__etext)
Kojto 96:487b796308b0 81 {
Kojto 96:487b796308b0 82 __data_start__ = .;
Kojto 96:487b796308b0 83 _sdata = .;
Kojto 96:487b796308b0 84 *(vtable)
Kojto 96:487b796308b0 85 *(.data*)
Kojto 96:487b796308b0 86
Kojto 96:487b796308b0 87 . = ALIGN(4);
Kojto 96:487b796308b0 88 /* preinit data */
Kojto 96:487b796308b0 89 PROVIDE_HIDDEN (__preinit_array_start = .);
Kojto 96:487b796308b0 90 KEEP(*(.preinit_array))
Kojto 96:487b796308b0 91 PROVIDE_HIDDEN (__preinit_array_end = .);
Kojto 96:487b796308b0 92
Kojto 96:487b796308b0 93 . = ALIGN(4);
Kojto 96:487b796308b0 94 /* init data */
Kojto 96:487b796308b0 95 PROVIDE_HIDDEN (__init_array_start = .);
Kojto 96:487b796308b0 96 KEEP(*(SORT(.init_array.*)))
Kojto 96:487b796308b0 97 KEEP(*(.init_array))
Kojto 96:487b796308b0 98 PROVIDE_HIDDEN (__init_array_end = .);
Kojto 96:487b796308b0 99
Kojto 96:487b796308b0 100
Kojto 96:487b796308b0 101 . = ALIGN(4);
Kojto 96:487b796308b0 102 /* finit data */
Kojto 96:487b796308b0 103 PROVIDE_HIDDEN (__fini_array_start = .);
Kojto 96:487b796308b0 104 KEEP(*(SORT(.fini_array.*)))
Kojto 96:487b796308b0 105 KEEP(*(.fini_array))
Kojto 96:487b796308b0 106 PROVIDE_HIDDEN (__fini_array_end = .);
Kojto 96:487b796308b0 107
Kojto 96:487b796308b0 108 KEEP(*(.jcr*))
Kojto 96:487b796308b0 109 . = ALIGN(4);
Kojto 96:487b796308b0 110 /* All data end */
Kojto 96:487b796308b0 111 __data_end__ = .;
Kojto 96:487b796308b0 112 _edata = .;
Kojto 96:487b796308b0 113
Kojto 96:487b796308b0 114 } > RAM
Kojto 96:487b796308b0 115
Kojto 96:487b796308b0 116 .bss :
Kojto 96:487b796308b0 117 {
Kojto 96:487b796308b0 118 . = ALIGN(4);
Kojto 96:487b796308b0 119 __bss_start__ = .;
Kojto 96:487b796308b0 120 _sbss = .;
Kojto 96:487b796308b0 121 *(.bss*)
Kojto 96:487b796308b0 122 *(COMMON)
Kojto 96:487b796308b0 123 . = ALIGN(4);
Kojto 96:487b796308b0 124 __bss_end__ = .;
Kojto 96:487b796308b0 125 _ebss = .;
Kojto 96:487b796308b0 126 } > RAM
Kojto 96:487b796308b0 127
Kojto 96:487b796308b0 128 .heap (COPY):
Kojto 96:487b796308b0 129 {
Kojto 96:487b796308b0 130 __end__ = .;
Kojto 96:487b796308b0 131 end = __end__;
Kojto 96:487b796308b0 132 *(.heap*)
Kojto 96:487b796308b0 133 __HeapLimit = .;
Kojto 96:487b796308b0 134 } > RAM
Kojto 96:487b796308b0 135
Kojto 96:487b796308b0 136 /* .stack_dummy section doesn't contains any symbols. It is only
Kojto 96:487b796308b0 137 * used for linker to calculate size of stack sections, and assign
Kojto 96:487b796308b0 138 * values to stack symbols later */
Kojto 96:487b796308b0 139 .stack_dummy (COPY):
Kojto 96:487b796308b0 140 {
Kojto 96:487b796308b0 141 *(.stack*)
Kojto 96:487b796308b0 142 } > RAM
Kojto 96:487b796308b0 143
Kojto 96:487b796308b0 144 /* Set stack top to end of RAM, and stack limit move down by
Kojto 96:487b796308b0 145 * size of stack_dummy section */
Kojto 96:487b796308b0 146 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
Kojto 96:487b796308b0 147 _estack = __StackTop;
Kojto 96:487b796308b0 148 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
Kojto 96:487b796308b0 149 PROVIDE(__stack = __StackTop);
Kojto 96:487b796308b0 150
Kojto 96:487b796308b0 151 /* Check if data + heap + stack exceeds RAM limit */
Kojto 96:487b796308b0 152 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
Kojto 96:487b796308b0 153 }
Kojto 96:487b796308b0 154