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TARGET_ARCH_GPRS/TOOLCHAIN_GCC_ARM/LPC11U37.ld@135:fce8a9387ed1, 2017-01-17 (annotated)

Committer:
kaoshen
Date:
Tue Jan 17 23:27:32 2017 +0000
Revision:
135:fce8a9387ed1
Parent:
88:9327015d4013 
333 ADS1115 ADC1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 88:9327015d4013 1 /* Linker script to configure memory regions. */
bogdanm 88:9327015d4013 2 MEMORY
bogdanm 88:9327015d4013 3 {
bogdanm 88:9327015d4013 4 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 128K
bogdanm 88:9327015d4013 5 RAM (rwx) : ORIGIN = 0x100000C0, LENGTH = 0x1F40
bogdanm 88:9327015d4013 6 USB_RAM (rwx): ORIGIN = 0x20004000, LENGTH = 0x800
bogdanm 88:9327015d4013 7 }
bogdanm 88:9327015d4013 8
bogdanm 88:9327015d4013 9 /* Linker script to place sections and symbol values. Should be used together
bogdanm 88:9327015d4013 10 * with other linker script that defines memory regions FLASH and RAM.
bogdanm 88:9327015d4013 11 * It references following symbols, which must be defined in code:
bogdanm 88:9327015d4013 12 * Reset_Handler : Entry of reset handler
bogdanm 88:9327015d4013 13 *
bogdanm 88:9327015d4013 14 * It defines following symbols, which code can use without definition:
bogdanm 88:9327015d4013 15 * __exidx_start
bogdanm 88:9327015d4013 16 * __exidx_end
bogdanm 88:9327015d4013 17 * __etext
bogdanm 88:9327015d4013 18 * __data_start__
bogdanm 88:9327015d4013 19 * __preinit_array_start
bogdanm 88:9327015d4013 20 * __preinit_array_end
bogdanm 88:9327015d4013 21 * __init_array_start
bogdanm 88:9327015d4013 22 * __init_array_end
bogdanm 88:9327015d4013 23 * __fini_array_start
bogdanm 88:9327015d4013 24 * __fini_array_end
bogdanm 88:9327015d4013 25 * __data_end__
bogdanm 88:9327015d4013 26 * __bss_start__
bogdanm 88:9327015d4013 27 * __bss_end__
bogdanm 88:9327015d4013 28 * __end__
bogdanm 88:9327015d4013 29 * end
bogdanm 88:9327015d4013 30 * __HeapLimit
bogdanm 88:9327015d4013 31 * __StackLimit
bogdanm 88:9327015d4013 32 * __StackTop
bogdanm 88:9327015d4013 33 * __stack
bogdanm 88:9327015d4013 34 */
bogdanm 88:9327015d4013 35 ENTRY(Reset_Handler)
bogdanm 88:9327015d4013 36
bogdanm 88:9327015d4013 37 SECTIONS
bogdanm 88:9327015d4013 38 {
bogdanm 88:9327015d4013 39 .text :
bogdanm 88:9327015d4013 40 {
bogdanm 88:9327015d4013 41 KEEP(*(.isr_vector))
bogdanm 88:9327015d4013 42 *(.text.Reset_Handler)
bogdanm 88:9327015d4013 43
bogdanm 88:9327015d4013 44 /* Only vectors and code running at reset are safe to be in first 512
bogdanm 88:9327015d4013 45 bytes since RAM can be mapped into this area for RAM based interrupt
bogdanm 88:9327015d4013 46 vectors. */
bogdanm 88:9327015d4013 47 . = 0x00000200;
bogdanm 88:9327015d4013 48 *(.text*)
bogdanm 88:9327015d4013 49
bogdanm 88:9327015d4013 50 KEEP(*(.init))
bogdanm 88:9327015d4013 51 KEEP(*(.fini))
bogdanm 88:9327015d4013 52
bogdanm 88:9327015d4013 53 /* .ctors */
bogdanm 88:9327015d4013 54 *crtbegin.o(.ctors)
bogdanm 88:9327015d4013 55 *crtbegin?.o(.ctors)
bogdanm 88:9327015d4013 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
bogdanm 88:9327015d4013 57 *(SORT(.ctors.*))
bogdanm 88:9327015d4013 58 *(.ctors)
bogdanm 88:9327015d4013 59
bogdanm 88:9327015d4013 60 /* .dtors */
bogdanm 88:9327015d4013 61 *crtbegin.o(.dtors)
bogdanm 88:9327015d4013 62 *crtbegin?.o(.dtors)
bogdanm 88:9327015d4013 63 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
bogdanm 88:9327015d4013 64 *(SORT(.dtors.*))
bogdanm 88:9327015d4013 65 *(.dtors)
bogdanm 88:9327015d4013 66
bogdanm 88:9327015d4013 67 *(.rodata*)
bogdanm 88:9327015d4013 68
bogdanm 88:9327015d4013 69 KEEP(*(.eh_frame*))
bogdanm 88:9327015d4013 70 } > FLASH
bogdanm 88:9327015d4013 71
bogdanm 88:9327015d4013 72 .ARM.extab :
bogdanm 88:9327015d4013 73 {
bogdanm 88:9327015d4013 74 *(.ARM.extab* .gnu.linkonce.armextab.*)
bogdanm 88:9327015d4013 75 } > FLASH
bogdanm 88:9327015d4013 76
bogdanm 88:9327015d4013 77 __exidx_start = .;
bogdanm 88:9327015d4013 78 .ARM.exidx :
bogdanm 88:9327015d4013 79 {
bogdanm 88:9327015d4013 80 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
bogdanm 88:9327015d4013 81 } > FLASH
bogdanm 88:9327015d4013 82 __exidx_end = .;
bogdanm 88:9327015d4013 83
bogdanm 88:9327015d4013 84 __etext = .;
bogdanm 88:9327015d4013 85
bogdanm 88:9327015d4013 86 .data : AT (__etext)
bogdanm 88:9327015d4013 87 {
bogdanm 88:9327015d4013 88 __data_start__ = .;
bogdanm 88:9327015d4013 89 *(vtable)
bogdanm 88:9327015d4013 90 *(.data*)
bogdanm 88:9327015d4013 91
bogdanm 88:9327015d4013 92 . = ALIGN(4);
bogdanm 88:9327015d4013 93 /* preinit data */
bogdanm 88:9327015d4013 94 PROVIDE (__preinit_array_start = .);
bogdanm 88:9327015d4013 95 KEEP(*(.preinit_array))
bogdanm 88:9327015d4013 96 PROVIDE (__preinit_array_end = .);
bogdanm 88:9327015d4013 97
bogdanm 88:9327015d4013 98 . = ALIGN(4);
bogdanm 88:9327015d4013 99 /* init data */
bogdanm 88:9327015d4013 100 PROVIDE (__init_array_start = .);
bogdanm 88:9327015d4013 101 KEEP(*(SORT(.init_array.*)))
bogdanm 88:9327015d4013 102 KEEP(*(.init_array))
bogdanm 88:9327015d4013 103 PROVIDE (__init_array_end = .);
bogdanm 88:9327015d4013 104
bogdanm 88:9327015d4013 105
bogdanm 88:9327015d4013 106 . = ALIGN(4);
bogdanm 88:9327015d4013 107 /* finit data */
bogdanm 88:9327015d4013 108 PROVIDE (__fini_array_start = .);
bogdanm 88:9327015d4013 109 KEEP(*(SORT(.fini_array.*)))
bogdanm 88:9327015d4013 110 KEEP(*(.fini_array))
bogdanm 88:9327015d4013 111 PROVIDE (__fini_array_end = .);
bogdanm 88:9327015d4013 112
bogdanm 88:9327015d4013 113 . = ALIGN(4);
bogdanm 88:9327015d4013 114 /* All data end */
bogdanm 88:9327015d4013 115 __data_end__ = .;
bogdanm 88:9327015d4013 116
bogdanm 88:9327015d4013 117 } > RAM
bogdanm 88:9327015d4013 118
bogdanm 88:9327015d4013 119 .bss :
bogdanm 88:9327015d4013 120 {
bogdanm 88:9327015d4013 121 __bss_start__ = .;
bogdanm 88:9327015d4013 122 *(.bss*)
bogdanm 88:9327015d4013 123 *(COMMON)
bogdanm 88:9327015d4013 124 __bss_end__ = .;
bogdanm 88:9327015d4013 125 } > RAM
bogdanm 88:9327015d4013 126
bogdanm 88:9327015d4013 127 .heap :
bogdanm 88:9327015d4013 128 {
bogdanm 88:9327015d4013 129 __end__ = .;
bogdanm 88:9327015d4013 130 end = __end__;
bogdanm 88:9327015d4013 131 *(.heap*)
bogdanm 88:9327015d4013 132 __HeapLimit = .;
bogdanm 88:9327015d4013 133 } > RAM
bogdanm 88:9327015d4013 134
bogdanm 88:9327015d4013 135 /* .stack_dummy section doesn't contains any symbols. It is only
bogdanm 88:9327015d4013 136 * used for linker to calculate size of stack sections, and assign
bogdanm 88:9327015d4013 137 * values to stack symbols later */
bogdanm 88:9327015d4013 138 .stack_dummy :
bogdanm 88:9327015d4013 139 {
bogdanm 88:9327015d4013 140 *(.stack)
bogdanm 88:9327015d4013 141 } > RAM
bogdanm 88:9327015d4013 142
bogdanm 88:9327015d4013 143 /* Set stack top to end of RAM, and stack limit move down by
bogdanm 88:9327015d4013 144 * size of stack_dummy section */
bogdanm 88:9327015d4013 145 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
bogdanm 88:9327015d4013 146 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
bogdanm 88:9327015d4013 147 PROVIDE(__stack = __StackTop);
bogdanm 88:9327015d4013 148
bogdanm 88:9327015d4013 149 /* Check if data + heap + stack exceeds RAM limit */
bogdanm 88:9327015d4013 150 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
bogdanm 88:9327015d4013 151 }