Elijah Orr / mbed-renbed

Fork of the official mbed C/C SDK provides the software platform and libraries to build your applications for RenBED.

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Fork of mbed by mbed official

TARGET_MICRONFCBOARD/TOOLCHAIN_GCC_ARM/LPC11U34.ld@121:672067c3ada4, 2016-04-14 (annotated)

Committer:
elijahorr
Date:
Thu Apr 14 07:28:54 2016 +0000
Revision:
121:672067c3ada4
Parent:
102:da0ca467f8b5 
.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 101:7cff1c4259d7 1 /* Linker script to configure memory regions. */
Kojto 101:7cff1c4259d7 2 MEMORY
Kojto 101:7cff1c4259d7 3 {
Kojto 101:7cff1c4259d7 4 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 48K
Kojto 101:7cff1c4259d7 5 RAM (rwx) : ORIGIN = 0x100000C0, LENGTH = 0x1F40
Kojto 101:7cff1c4259d7 6 USB_RAM (rwx): ORIGIN = 0x20004000, LENGTH = 0x800
Kojto 101:7cff1c4259d7 7 }
Kojto 101:7cff1c4259d7 8
Kojto 101:7cff1c4259d7 9 /* Linker script to place sections and symbol values. Should be used together
Kojto 101:7cff1c4259d7 10 * with other linker script that defines memory regions FLASH and RAM.
Kojto 101:7cff1c4259d7 11 * It references following symbols, which must be defined in code:
Kojto 101:7cff1c4259d7 12 * Reset_Handler : Entry of reset handler
Kojto 101:7cff1c4259d7 13 *
Kojto 101:7cff1c4259d7 14 * It defines following symbols, which code can use without definition:
Kojto 101:7cff1c4259d7 15 * __exidx_start
Kojto 101:7cff1c4259d7 16 * __exidx_end
Kojto 101:7cff1c4259d7 17 * __etext
Kojto 101:7cff1c4259d7 18 * __data_start__
Kojto 101:7cff1c4259d7 19 * __preinit_array_start
Kojto 101:7cff1c4259d7 20 * __preinit_array_end
Kojto 101:7cff1c4259d7 21 * __init_array_start
Kojto 101:7cff1c4259d7 22 * __init_array_end
Kojto 101:7cff1c4259d7 23 * __fini_array_start
Kojto 101:7cff1c4259d7 24 * __fini_array_end
Kojto 101:7cff1c4259d7 25 * __data_end__
Kojto 101:7cff1c4259d7 26 * __bss_start__
Kojto 101:7cff1c4259d7 27 * __bss_end__
Kojto 101:7cff1c4259d7 28 * __end__
Kojto 101:7cff1c4259d7 29 * end
Kojto 101:7cff1c4259d7 30 * __HeapLimit
Kojto 101:7cff1c4259d7 31 * __StackLimit
Kojto 101:7cff1c4259d7 32 * __StackTop
Kojto 101:7cff1c4259d7 33 * __stack
Kojto 101:7cff1c4259d7 34 */
Kojto 101:7cff1c4259d7 35 ENTRY(Reset_Handler)
Kojto 101:7cff1c4259d7 36
Kojto 101:7cff1c4259d7 37 SECTIONS
Kojto 101:7cff1c4259d7 38 {
Kojto 101:7cff1c4259d7 39 .text :
Kojto 101:7cff1c4259d7 40 {
Kojto 101:7cff1c4259d7 41 KEEP(*(.isr_vector))
Kojto 101:7cff1c4259d7 42 *(.text.Reset_Handler)
Kojto 101:7cff1c4259d7 43
Kojto 101:7cff1c4259d7 44 /* Only vectors and code running at reset are safe to be in first 512
Kojto 101:7cff1c4259d7 45 bytes since RAM can be mapped into this area for RAM based interrupt
Kojto 101:7cff1c4259d7 46 vectors. */
Kojto 101:7cff1c4259d7 47 . = 0x00000200;
Kojto 101:7cff1c4259d7 48 *(.text*)
Kojto 101:7cff1c4259d7 49
Kojto 101:7cff1c4259d7 50 KEEP(*(.init))
Kojto 101:7cff1c4259d7 51 KEEP(*(.fini))
Kojto 101:7cff1c4259d7 52
Kojto 101:7cff1c4259d7 53 /* .ctors */
Kojto 101:7cff1c4259d7 54 *crtbegin.o(.ctors)
Kojto 101:7cff1c4259d7 55 *crtbegin?.o(.ctors)
Kojto 101:7cff1c4259d7 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
Kojto 101:7cff1c4259d7 57 *(SORT(.ctors.*))
Kojto 101:7cff1c4259d7 58 *(.ctors)
Kojto 101:7cff1c4259d7 59
Kojto 101:7cff1c4259d7 60 /* .dtors */
Kojto 101:7cff1c4259d7 61 *crtbegin.o(.dtors)
Kojto 101:7cff1c4259d7 62 *crtbegin?.o(.dtors)
Kojto 101:7cff1c4259d7 63 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
Kojto 101:7cff1c4259d7 64 *(SORT(.dtors.*))
Kojto 101:7cff1c4259d7 65 *(.dtors)
Kojto 101:7cff1c4259d7 66
Kojto 101:7cff1c4259d7 67 *(.rodata*)
Kojto 101:7cff1c4259d7 68
Kojto 101:7cff1c4259d7 69 KEEP(*(.eh_frame*))
Kojto 101:7cff1c4259d7 70 } > FLASH
Kojto 101:7cff1c4259d7 71
Kojto 101:7cff1c4259d7 72 .ARM.extab :
Kojto 101:7cff1c4259d7 73 {
Kojto 101:7cff1c4259d7 74 *(.ARM.extab* .gnu.linkonce.armextab.*)
Kojto 101:7cff1c4259d7 75 } > FLASH
Kojto 101:7cff1c4259d7 76
Kojto 101:7cff1c4259d7 77 __exidx_start = .;
Kojto 101:7cff1c4259d7 78 .ARM.exidx :
Kojto 101:7cff1c4259d7 79 {
Kojto 101:7cff1c4259d7 80 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
Kojto 101:7cff1c4259d7 81 } > FLASH
Kojto 101:7cff1c4259d7 82 __exidx_end = .;
Kojto 101:7cff1c4259d7 83
Kojto 101:7cff1c4259d7 84 __etext = .;
Kojto 101:7cff1c4259d7 85
Kojto 101:7cff1c4259d7 86 .data : AT (__etext)
Kojto 101:7cff1c4259d7 87 {
Kojto 101:7cff1c4259d7 88 __data_start__ = .;
Kojto 101:7cff1c4259d7 89 *(vtable)
Kojto 101:7cff1c4259d7 90 *(.data*)
Kojto 101:7cff1c4259d7 91
Kojto 101:7cff1c4259d7 92 . = ALIGN(4);
Kojto 101:7cff1c4259d7 93 /* preinit data */
Kojto 101:7cff1c4259d7 94 PROVIDE (__preinit_array_start = .);
Kojto 101:7cff1c4259d7 95 KEEP(*(.preinit_array))
Kojto 101:7cff1c4259d7 96 PROVIDE (__preinit_array_end = .);
Kojto 101:7cff1c4259d7 97
Kojto 101:7cff1c4259d7 98 . = ALIGN(4);
Kojto 101:7cff1c4259d7 99 /* init data */
Kojto 101:7cff1c4259d7 100 PROVIDE (__init_array_start = .);
Kojto 101:7cff1c4259d7 101 KEEP(*(SORT(.init_array.*)))
Kojto 101:7cff1c4259d7 102 KEEP(*(.init_array))
Kojto 101:7cff1c4259d7 103 PROVIDE (__init_array_end = .);
Kojto 101:7cff1c4259d7 104
Kojto 101:7cff1c4259d7 105
Kojto 101:7cff1c4259d7 106 . = ALIGN(4);
Kojto 101:7cff1c4259d7 107 /* finit data */
Kojto 101:7cff1c4259d7 108 PROVIDE (__fini_array_start = .);
Kojto 101:7cff1c4259d7 109 KEEP(*(SORT(.fini_array.*)))
Kojto 101:7cff1c4259d7 110 KEEP(*(.fini_array))
Kojto 101:7cff1c4259d7 111 PROVIDE (__fini_array_end = .);
Kojto 101:7cff1c4259d7 112
Kojto 101:7cff1c4259d7 113 . = ALIGN(4);
Kojto 101:7cff1c4259d7 114 /* All data end */
Kojto 101:7cff1c4259d7 115 __data_end__ = .;
Kojto 101:7cff1c4259d7 116
Kojto 101:7cff1c4259d7 117 } > RAM
Kojto 101:7cff1c4259d7 118
Kojto 101:7cff1c4259d7 119 .bss :
Kojto 101:7cff1c4259d7 120 {
Kojto 101:7cff1c4259d7 121 __bss_start__ = .;
Kojto 101:7cff1c4259d7 122 *(.bss*)
Kojto 101:7cff1c4259d7 123 *(COMMON)
Kojto 101:7cff1c4259d7 124 __bss_end__ = .;
Kojto 101:7cff1c4259d7 125 } > RAM
Kojto 101:7cff1c4259d7 126
Kojto 101:7cff1c4259d7 127 .heap :
Kojto 101:7cff1c4259d7 128 {
Kojto 101:7cff1c4259d7 129 __end__ = .;
Kojto 101:7cff1c4259d7 130 end = __end__;
Kojto 101:7cff1c4259d7 131 *(.heap*)
Kojto 101:7cff1c4259d7 132 __HeapLimit = .;
Kojto 101:7cff1c4259d7 133 } > RAM
Kojto 101:7cff1c4259d7 134
Kojto 101:7cff1c4259d7 135 /* .stack_dummy section doesn't contains any symbols. It is only
Kojto 101:7cff1c4259d7 136 * used for linker to calculate size of stack sections, and assign
Kojto 101:7cff1c4259d7 137 * values to stack symbols later */
Kojto 101:7cff1c4259d7 138 .stack_dummy :
Kojto 101:7cff1c4259d7 139 {
Kojto 101:7cff1c4259d7 140 *(.stack)
Kojto 101:7cff1c4259d7 141 } > RAM
Kojto 101:7cff1c4259d7 142
Kojto 101:7cff1c4259d7 143 /* Set stack top to end of RAM, and stack limit move down by
Kojto 101:7cff1c4259d7 144 * size of stack_dummy section */
Kojto 101:7cff1c4259d7 145 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
Kojto 101:7cff1c4259d7 146 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
Kojto 101:7cff1c4259d7 147 PROVIDE(__stack = __StackTop);
Kojto 101:7cff1c4259d7 148
Kojto 101:7cff1c4259d7 149 /* Check if data + heap + stack exceeds RAM limit */
Kojto 101:7cff1c4259d7 150 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
Kojto 101:7cff1c4259d7 151 }