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TARGET_NUCLEO_F746ZG/TOOLCHAIN_GCC_ARM/STM32F746ZG.ld@135:fce8a9387ed1, 2017-01-17 (annotated)

Committer:
kaoshen
Date:
Tue Jan 17 23:27:32 2017 +0000
Revision:
135:fce8a9387ed1
Parent:
115:87f2f5183dfb 
333 ADS1115 ADC1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 115:87f2f5183dfb 1 /* Linker script to configure memory regions. */
Kojto 115:87f2f5183dfb 2 MEMORY
Kojto 115:87f2f5183dfb 3 {
Kojto 115:87f2f5183dfb 4 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
Kojto 115:87f2f5183dfb 5 RAM (rwx) : ORIGIN = 0x200001C8, LENGTH = 320K - 0x1C8
Kojto 115:87f2f5183dfb 6 }
Kojto 115:87f2f5183dfb 7
Kojto 115:87f2f5183dfb 8 /* Linker script to place sections and symbol values. Should be used together
Kojto 115:87f2f5183dfb 9 * with other linker script that defines memory regions FLASH and RAM.
Kojto 115:87f2f5183dfb 10 * It references following symbols, which must be defined in code:
Kojto 115:87f2f5183dfb 11 * Reset_Handler : Entry of reset handler
Kojto 115:87f2f5183dfb 12 *
Kojto 115:87f2f5183dfb 13 * It defines following symbols, which code can use without definition:
Kojto 115:87f2f5183dfb 14 * __exidx_start
Kojto 115:87f2f5183dfb 15 * __exidx_end
Kojto 115:87f2f5183dfb 16 * __etext
Kojto 115:87f2f5183dfb 17 * __data_start__
Kojto 115:87f2f5183dfb 18 * __preinit_array_start
Kojto 115:87f2f5183dfb 19 * __preinit_array_end
Kojto 115:87f2f5183dfb 20 * __init_array_start
Kojto 115:87f2f5183dfb 21 * __init_array_end
Kojto 115:87f2f5183dfb 22 * __fini_array_start
Kojto 115:87f2f5183dfb 23 * __fini_array_end
Kojto 115:87f2f5183dfb 24 * __data_end__
Kojto 115:87f2f5183dfb 25 * __bss_start__
Kojto 115:87f2f5183dfb 26 * __bss_end__
Kojto 115:87f2f5183dfb 27 * __end__
Kojto 115:87f2f5183dfb 28 * end
Kojto 115:87f2f5183dfb 29 * __HeapLimit
Kojto 115:87f2f5183dfb 30 * __StackLimit
Kojto 115:87f2f5183dfb 31 * __StackTop
Kojto 115:87f2f5183dfb 32 * __stack
Kojto 115:87f2f5183dfb 33 * _estack
Kojto 115:87f2f5183dfb 34 */
Kojto 115:87f2f5183dfb 35 ENTRY(Reset_Handler)
Kojto 115:87f2f5183dfb 36
Kojto 115:87f2f5183dfb 37 SECTIONS
Kojto 115:87f2f5183dfb 38 {
Kojto 115:87f2f5183dfb 39 .text :
Kojto 115:87f2f5183dfb 40 {
Kojto 115:87f2f5183dfb 41 KEEP(*(.isr_vector))
Kojto 115:87f2f5183dfb 42 *(.text*)
Kojto 115:87f2f5183dfb 43 KEEP(*(.init))
Kojto 115:87f2f5183dfb 44 KEEP(*(.fini))
Kojto 115:87f2f5183dfb 45
Kojto 115:87f2f5183dfb 46 /* .ctors */
Kojto 115:87f2f5183dfb 47 *crtbegin.o(.ctors)
Kojto 115:87f2f5183dfb 48 *crtbegin?.o(.ctors)
Kojto 115:87f2f5183dfb 49 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
Kojto 115:87f2f5183dfb 50 *(SORT(.ctors.*))
Kojto 115:87f2f5183dfb 51 *(.ctors)
Kojto 115:87f2f5183dfb 52
Kojto 115:87f2f5183dfb 53 /* .dtors */
Kojto 115:87f2f5183dfb 54 *crtbegin.o(.dtors)
Kojto 115:87f2f5183dfb 55 *crtbegin?.o(.dtors)
Kojto 115:87f2f5183dfb 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
Kojto 115:87f2f5183dfb 57 *(SORT(.dtors.*))
Kojto 115:87f2f5183dfb 58 *(.dtors)
Kojto 115:87f2f5183dfb 59
Kojto 115:87f2f5183dfb 60 *(.rodata*)
Kojto 115:87f2f5183dfb 61
Kojto 115:87f2f5183dfb 62 KEEP(*(.eh_frame*))
Kojto 115:87f2f5183dfb 63 } > FLASH
Kojto 115:87f2f5183dfb 64
Kojto 115:87f2f5183dfb 65 .ARM.extab :
Kojto 115:87f2f5183dfb 66 {
Kojto 115:87f2f5183dfb 67 *(.ARM.extab* .gnu.linkonce.armextab.*)
Kojto 115:87f2f5183dfb 68 } > FLASH
Kojto 115:87f2f5183dfb 69
Kojto 115:87f2f5183dfb 70 __exidx_start = .;
Kojto 115:87f2f5183dfb 71 .ARM.exidx :
Kojto 115:87f2f5183dfb 72 {
Kojto 115:87f2f5183dfb 73 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
Kojto 115:87f2f5183dfb 74 } > FLASH
Kojto 115:87f2f5183dfb 75 __exidx_end = .;
Kojto 115:87f2f5183dfb 76
Kojto 115:87f2f5183dfb 77 __etext = .;
Kojto 115:87f2f5183dfb 78 _sidata = .;
Kojto 115:87f2f5183dfb 79
Kojto 115:87f2f5183dfb 80 .data : AT (__etext)
Kojto 115:87f2f5183dfb 81 {
Kojto 115:87f2f5183dfb 82 __data_start__ = .;
Kojto 115:87f2f5183dfb 83 _sdata = .;
Kojto 115:87f2f5183dfb 84 *(vtable)
Kojto 115:87f2f5183dfb 85 *(.data*)
Kojto 115:87f2f5183dfb 86
Kojto 115:87f2f5183dfb 87 . = ALIGN(4);
Kojto 115:87f2f5183dfb 88 /* preinit data */
Kojto 115:87f2f5183dfb 89 PROVIDE_HIDDEN (__preinit_array_start = .);
Kojto 115:87f2f5183dfb 90 KEEP(*(.preinit_array))
Kojto 115:87f2f5183dfb 91 PROVIDE_HIDDEN (__preinit_array_end = .);
Kojto 115:87f2f5183dfb 92
Kojto 115:87f2f5183dfb 93 . = ALIGN(4);
Kojto 115:87f2f5183dfb 94 /* init data */
Kojto 115:87f2f5183dfb 95 PROVIDE_HIDDEN (__init_array_start = .);
Kojto 115:87f2f5183dfb 96 KEEP(*(SORT(.init_array.*)))
Kojto 115:87f2f5183dfb 97 KEEP(*(.init_array))
Kojto 115:87f2f5183dfb 98 PROVIDE_HIDDEN (__init_array_end = .);
Kojto 115:87f2f5183dfb 99
Kojto 115:87f2f5183dfb 100
Kojto 115:87f2f5183dfb 101 . = ALIGN(4);
Kojto 115:87f2f5183dfb 102 /* finit data */
Kojto 115:87f2f5183dfb 103 PROVIDE_HIDDEN (__fini_array_start = .);
Kojto 115:87f2f5183dfb 104 KEEP(*(SORT(.fini_array.*)))
Kojto 115:87f2f5183dfb 105 KEEP(*(.fini_array))
Kojto 115:87f2f5183dfb 106 PROVIDE_HIDDEN (__fini_array_end = .);
Kojto 115:87f2f5183dfb 107
Kojto 115:87f2f5183dfb 108 KEEP(*(.jcr*))
Kojto 115:87f2f5183dfb 109 . = ALIGN(4);
Kojto 115:87f2f5183dfb 110 /* All data end */
Kojto 115:87f2f5183dfb 111 __data_end__ = .;
Kojto 115:87f2f5183dfb 112 _edata = .;
Kojto 115:87f2f5183dfb 113
Kojto 115:87f2f5183dfb 114 } > RAM
Kojto 115:87f2f5183dfb 115
Kojto 115:87f2f5183dfb 116 .bss :
Kojto 115:87f2f5183dfb 117 {
Kojto 115:87f2f5183dfb 118 . = ALIGN(4);
Kojto 115:87f2f5183dfb 119 __bss_start__ = .;
Kojto 115:87f2f5183dfb 120 _sbss = .;
Kojto 115:87f2f5183dfb 121 *(.bss*)
Kojto 115:87f2f5183dfb 122 *(COMMON)
Kojto 115:87f2f5183dfb 123 . = ALIGN(4);
Kojto 115:87f2f5183dfb 124 __bss_end__ = .;
Kojto 115:87f2f5183dfb 125 _ebss = .;
Kojto 115:87f2f5183dfb 126 } > RAM
Kojto 115:87f2f5183dfb 127
Kojto 115:87f2f5183dfb 128 .heap (COPY):
Kojto 115:87f2f5183dfb 129 {
Kojto 115:87f2f5183dfb 130 __end__ = .;
Kojto 115:87f2f5183dfb 131 end = __end__;
Kojto 115:87f2f5183dfb 132 *(.heap*)
Kojto 115:87f2f5183dfb 133 __HeapLimit = .;
Kojto 115:87f2f5183dfb 134 } > RAM
Kojto 115:87f2f5183dfb 135
Kojto 115:87f2f5183dfb 136 /* .stack_dummy section doesn't contains any symbols. It is only
Kojto 115:87f2f5183dfb 137 * used for linker to calculate size of stack sections, and assign
Kojto 115:87f2f5183dfb 138 * values to stack symbols later */
Kojto 115:87f2f5183dfb 139 .stack_dummy (COPY):
Kojto 115:87f2f5183dfb 140 {
Kojto 115:87f2f5183dfb 141 *(.stack*)
Kojto 115:87f2f5183dfb 142 } > RAM
Kojto 115:87f2f5183dfb 143
Kojto 115:87f2f5183dfb 144 /* Set stack top to end of RAM, and stack limit move down by
Kojto 115:87f2f5183dfb 145 * size of stack_dummy section */
Kojto 115:87f2f5183dfb 146 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
Kojto 115:87f2f5183dfb 147 _estack = __StackTop;
Kojto 115:87f2f5183dfb 148 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
Kojto 115:87f2f5183dfb 149 PROVIDE(__stack = __StackTop);
Kojto 115:87f2f5183dfb 150
Kojto 115:87f2f5183dfb 151 /* Check if data + heap + stack exceeds RAM limit */
Kojto 115:87f2f5183dfb 152 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
Kojto 115:87f2f5183dfb 153 }