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TARGET_LPC1768/TOOLCHAIN_GCC_ARM/LPC1768.ld@65:5798e58a58b1, 2013-08-12 (annotated)

Committer:
bogdanm
Date:
Mon Aug 12 13:17:46 2013 +0300
Revision:
65:5798e58a58b1
Parent:
64:e3affc9e7238
Child:
66:9c8f0e3462fb
New target (LPC4088), new features (interrupt chaining), bug fixes (KL25Z I2C).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 65:5798e58a58b1 1 /* Linker script for mbed LPC1768 */
bogdanm 65:5798e58a58b1 2
bogdanm 65:5798e58a58b1 3 /* Linker script to configure memory regions. */
bogdanm 65:5798e58a58b1 4 MEMORY
bogdanm 65:5798e58a58b1 5 {
bogdanm 65:5798e58a58b1 6 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 512K
bogdanm 65:5798e58a58b1 7 RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = 0x7F38
bogdanm 65:5798e58a58b1 8
bogdanm 65:5798e58a58b1 9 USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
bogdanm 65:5798e58a58b1 10 ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
bogdanm 65:5798e58a58b1 11 }
bogdanm 65:5798e58a58b1 12
bogdanm 65:5798e58a58b1 13 /* Linker script to place sections and symbol values. Should be used together
bogdanm 65:5798e58a58b1 14 * with other linker script that defines memory regions FLASH and RAM.
bogdanm 65:5798e58a58b1 15 * It references following symbols, which must be defined in code:
bogdanm 65:5798e58a58b1 16 * Reset_Handler : Entry of reset handler
bogdanm 65:5798e58a58b1 17 *
bogdanm 65:5798e58a58b1 18 * It defines following symbols, which code can use without definition:
bogdanm 65:5798e58a58b1 19 * __exidx_start
bogdanm 65:5798e58a58b1 20 * __exidx_end
bogdanm 65:5798e58a58b1 21 * __etext
bogdanm 65:5798e58a58b1 22 * __data_start__
bogdanm 65:5798e58a58b1 23 * __preinit_array_start
bogdanm 65:5798e58a58b1 24 * __preinit_array_end
bogdanm 65:5798e58a58b1 25 * __init_array_start
bogdanm 65:5798e58a58b1 26 * __init_array_end
bogdanm 65:5798e58a58b1 27 * __fini_array_start
bogdanm 65:5798e58a58b1 28 * __fini_array_end
bogdanm 65:5798e58a58b1 29 * __data_end__
bogdanm 65:5798e58a58b1 30 * __bss_start__
bogdanm 65:5798e58a58b1 31 * __bss_end__
bogdanm 65:5798e58a58b1 32 * __end__
bogdanm 65:5798e58a58b1 33 * end
bogdanm 65:5798e58a58b1 34 * __HeapLimit
bogdanm 65:5798e58a58b1 35 * __StackLimit
bogdanm 65:5798e58a58b1 36 * __StackTop
bogdanm 65:5798e58a58b1 37 * __stack
bogdanm 65:5798e58a58b1 38 */
bogdanm 65:5798e58a58b1 39 ENTRY(Reset_Handler)
bogdanm 65:5798e58a58b1 40
bogdanm 65:5798e58a58b1 41 SECTIONS
bogdanm 65:5798e58a58b1 42 {
bogdanm 65:5798e58a58b1 43 .text :
bogdanm 65:5798e58a58b1 44 {
bogdanm 65:5798e58a58b1 45 KEEP(*(.isr_vector))
bogdanm 65:5798e58a58b1 46 *(.text*)
bogdanm 65:5798e58a58b1 47
bogdanm 65:5798e58a58b1 48 KEEP(*(.init))
bogdanm 65:5798e58a58b1 49 KEEP(*(.fini))
bogdanm 65:5798e58a58b1 50
bogdanm 65:5798e58a58b1 51 /* .ctors */
bogdanm 65:5798e58a58b1 52 *crtbegin.o(.ctors)
bogdanm 65:5798e58a58b1 53 *crtbegin?.o(.ctors)
bogdanm 65:5798e58a58b1 54 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
bogdanm 65:5798e58a58b1 55 *(SORT(.ctors.*))
bogdanm 65:5798e58a58b1 56 *(.ctors)
bogdanm 65:5798e58a58b1 57
bogdanm 65:5798e58a58b1 58 /* .dtors */
bogdanm 65:5798e58a58b1 59 *crtbegin.o(.dtors)
bogdanm 65:5798e58a58b1 60 *crtbegin?.o(.dtors)
bogdanm 65:5798e58a58b1 61 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
bogdanm 65:5798e58a58b1 62 *(SORT(.dtors.*))
bogdanm 65:5798e58a58b1 63 *(.dtors)
bogdanm 65:5798e58a58b1 64
bogdanm 65:5798e58a58b1 65 *(.rodata*)
bogdanm 65:5798e58a58b1 66
bogdanm 65:5798e58a58b1 67 KEEP(*(.eh_frame*))
bogdanm 65:5798e58a58b1 68 } > FLASH
bogdanm 65:5798e58a58b1 69
bogdanm 65:5798e58a58b1 70 .ARM.extab :
bogdanm 65:5798e58a58b1 71 {
bogdanm 65:5798e58a58b1 72 *(.ARM.extab* .gnu.linkonce.armextab.*)
bogdanm 65:5798e58a58b1 73 } > FLASH
bogdanm 65:5798e58a58b1 74
bogdanm 65:5798e58a58b1 75 __exidx_start = .;
bogdanm 65:5798e58a58b1 76 .ARM.exidx :
bogdanm 65:5798e58a58b1 77 {
bogdanm 65:5798e58a58b1 78 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
bogdanm 65:5798e58a58b1 79 } > FLASH
bogdanm 65:5798e58a58b1 80 __exidx_end = .;
bogdanm 65:5798e58a58b1 81
bogdanm 65:5798e58a58b1 82 __etext = .;
bogdanm 65:5798e58a58b1 83
bogdanm 65:5798e58a58b1 84 .data : AT (__etext)
bogdanm 65:5798e58a58b1 85 {
bogdanm 65:5798e58a58b1 86 __data_start__ = .;
bogdanm 65:5798e58a58b1 87 *(vtable)
bogdanm 65:5798e58a58b1 88 *(.data*)
bogdanm 65:5798e58a58b1 89
bogdanm 65:5798e58a58b1 90 . = ALIGN(4);
bogdanm 65:5798e58a58b1 91 /* preinit data */
bogdanm 65:5798e58a58b1 92 PROVIDE (__preinit_array_start = .);
bogdanm 65:5798e58a58b1 93 KEEP(*(.preinit_array))
bogdanm 65:5798e58a58b1 94 PROVIDE (__preinit_array_end = .);
bogdanm 65:5798e58a58b1 95
bogdanm 65:5798e58a58b1 96 . = ALIGN(4);
bogdanm 65:5798e58a58b1 97 /* init data */
bogdanm 65:5798e58a58b1 98 PROVIDE (__init_array_start = .);
bogdanm 65:5798e58a58b1 99 KEEP(*(SORT(.init_array.*)))
bogdanm 65:5798e58a58b1 100 KEEP(*(.init_array))
bogdanm 65:5798e58a58b1 101 PROVIDE (__init_array_end = .);
bogdanm 65:5798e58a58b1 102
bogdanm 65:5798e58a58b1 103
bogdanm 65:5798e58a58b1 104 . = ALIGN(4);
bogdanm 65:5798e58a58b1 105 /* finit data */
bogdanm 65:5798e58a58b1 106 PROVIDE (__fini_array_start = .);
bogdanm 65:5798e58a58b1 107 KEEP(*(SORT(.fini_array.*)))
bogdanm 65:5798e58a58b1 108 KEEP(*(.fini_array))
bogdanm 65:5798e58a58b1 109 PROVIDE (__fini_array_end = .);
bogdanm 65:5798e58a58b1 110
bogdanm 65:5798e58a58b1 111 . = ALIGN(4);
bogdanm 65:5798e58a58b1 112 /* All data end */
bogdanm 65:5798e58a58b1 113 __data_end__ = .;
bogdanm 65:5798e58a58b1 114
bogdanm 65:5798e58a58b1 115 } > RAM
bogdanm 65:5798e58a58b1 116
bogdanm 65:5798e58a58b1 117 .bss :
bogdanm 65:5798e58a58b1 118 {
bogdanm 65:5798e58a58b1 119 __bss_start__ = .;
bogdanm 65:5798e58a58b1 120 *(.bss*)
bogdanm 65:5798e58a58b1 121 *(COMMON)
bogdanm 65:5798e58a58b1 122 __bss_end__ = .;
bogdanm 65:5798e58a58b1 123 } > RAM
bogdanm 65:5798e58a58b1 124
bogdanm 65:5798e58a58b1 125 .heap :
bogdanm 65:5798e58a58b1 126 {
bogdanm 65:5798e58a58b1 127 __end__ = .;
bogdanm 65:5798e58a58b1 128 end = __end__;
bogdanm 65:5798e58a58b1 129 *(.heap*)
bogdanm 65:5798e58a58b1 130 __HeapLimit = .;
bogdanm 65:5798e58a58b1 131 } > RAM
bogdanm 65:5798e58a58b1 132
bogdanm 65:5798e58a58b1 133 /* .stack_dummy section doesn't contains any symbols. It is only
bogdanm 65:5798e58a58b1 134 * used for linker to calculate size of stack sections, and assign
bogdanm 65:5798e58a58b1 135 * values to stack symbols later */
bogdanm 65:5798e58a58b1 136 .stack_dummy :
bogdanm 65:5798e58a58b1 137 {
bogdanm 65:5798e58a58b1 138 *(.stack)
bogdanm 65:5798e58a58b1 139 } > RAM
bogdanm 65:5798e58a58b1 140
bogdanm 65:5798e58a58b1 141 /* Set stack top to end of RAM, and stack limit move down by
bogdanm 65:5798e58a58b1 142 * size of stack_dummy section */
bogdanm 65:5798e58a58b1 143 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
bogdanm 65:5798e58a58b1 144 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
bogdanm 65:5798e58a58b1 145 PROVIDE(__stack = __StackTop);
bogdanm 65:5798e58a58b1 146
bogdanm 65:5798e58a58b1 147 /* Check if data + heap + stack exceeds RAM limit */
bogdanm 65:5798e58a58b1 148 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
bogdanm 65:5798e58a58b1 149 }