Egor Rumjantsev / mbed

The official mbed C/C SDK provides the software platform and libraries to build your applications.

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TARGET_LPC11U24/TOOLCHAIN_GCC_ARM/LPC11U24.ld@99:7f6c6de930c0, 2015-05-03 (annotated)

Committer:
Mikchel
Date:
Sun May 03 16:04:42 2015 +0000
Revision:
99:7f6c6de930c0
Parent:
81:7d30d6019079 
12

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 81:7d30d6019079 1 /* Linker script for mbed LPC1768 */
bogdanm 81:7d30d6019079 2
bogdanm 81:7d30d6019079 3 /* Linker script to configure memory regions. */
bogdanm 81:7d30d6019079 4 MEMORY
bogdanm 81:7d30d6019079 5 {
bogdanm 81:7d30d6019079 6 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 32K
bogdanm 81:7d30d6019079 7 RAM (rwx) : ORIGIN = 0x100000C0, LENGTH = 0x1F40
bogdanm 81:7d30d6019079 8 USB_RAM (rwx): ORIGIN = 0x20004000, LENGTH = 0x800
bogdanm 81:7d30d6019079 9 }
bogdanm 81:7d30d6019079 10
bogdanm 81:7d30d6019079 11 /* Linker script to place sections and symbol values. Should be used together
bogdanm 81:7d30d6019079 12 * with other linker script that defines memory regions FLASH and RAM.
bogdanm 81:7d30d6019079 13 * It references following symbols, which must be defined in code:
bogdanm 81:7d30d6019079 14 * Reset_Handler : Entry of reset handler
bogdanm 81:7d30d6019079 15 *
bogdanm 81:7d30d6019079 16 * It defines following symbols, which code can use without definition:
bogdanm 81:7d30d6019079 17 * __exidx_start
bogdanm 81:7d30d6019079 18 * __exidx_end
bogdanm 81:7d30d6019079 19 * __etext
bogdanm 81:7d30d6019079 20 * __data_start__
bogdanm 81:7d30d6019079 21 * __preinit_array_start
bogdanm 81:7d30d6019079 22 * __preinit_array_end
bogdanm 81:7d30d6019079 23 * __init_array_start
bogdanm 81:7d30d6019079 24 * __init_array_end
bogdanm 81:7d30d6019079 25 * __fini_array_start
bogdanm 81:7d30d6019079 26 * __fini_array_end
bogdanm 81:7d30d6019079 27 * __data_end__
bogdanm 81:7d30d6019079 28 * __bss_start__
bogdanm 81:7d30d6019079 29 * __bss_end__
bogdanm 81:7d30d6019079 30 * __end__
bogdanm 81:7d30d6019079 31 * end
bogdanm 81:7d30d6019079 32 * __HeapLimit
bogdanm 81:7d30d6019079 33 * __StackLimit
bogdanm 81:7d30d6019079 34 * __StackTop
bogdanm 81:7d30d6019079 35 * __stack
bogdanm 81:7d30d6019079 36 */
bogdanm 81:7d30d6019079 37 ENTRY(Reset_Handler)
bogdanm 81:7d30d6019079 38
bogdanm 81:7d30d6019079 39 SECTIONS
bogdanm 81:7d30d6019079 40 {
bogdanm 81:7d30d6019079 41 .text :
bogdanm 81:7d30d6019079 42 {
bogdanm 81:7d30d6019079 43 KEEP(*(.isr_vector))
bogdanm 81:7d30d6019079 44 *(.text.Reset_Handler)
bogdanm 81:7d30d6019079 45 *(.text.SystemInit)
bogdanm 81:7d30d6019079 46
bogdanm 81:7d30d6019079 47 /* Only vectors and code running at reset are safe to be in first 512
bogdanm 81:7d30d6019079 48 bytes since RAM can be mapped into this area for RAM based interrupt
bogdanm 81:7d30d6019079 49 vectors. */
bogdanm 81:7d30d6019079 50 . = 0x00000200;
bogdanm 81:7d30d6019079 51 *(.text*)
bogdanm 81:7d30d6019079 52
bogdanm 81:7d30d6019079 53 KEEP(*(.init))
bogdanm 81:7d30d6019079 54 KEEP(*(.fini))
bogdanm 81:7d30d6019079 55
bogdanm 81:7d30d6019079 56 /* .ctors */
bogdanm 81:7d30d6019079 57 *crtbegin.o(.ctors)
bogdanm 81:7d30d6019079 58 *crtbegin?.o(.ctors)
bogdanm 81:7d30d6019079 59 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
bogdanm 81:7d30d6019079 60 *(SORT(.ctors.*))
bogdanm 81:7d30d6019079 61 *(.ctors)
bogdanm 81:7d30d6019079 62
bogdanm 81:7d30d6019079 63 /* .dtors */
bogdanm 81:7d30d6019079 64 *crtbegin.o(.dtors)
bogdanm 81:7d30d6019079 65 *crtbegin?.o(.dtors)
bogdanm 81:7d30d6019079 66 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
bogdanm 81:7d30d6019079 67 *(SORT(.dtors.*))
bogdanm 81:7d30d6019079 68 *(.dtors)
bogdanm 81:7d30d6019079 69
bogdanm 81:7d30d6019079 70 *(.rodata*)
bogdanm 81:7d30d6019079 71
bogdanm 81:7d30d6019079 72 KEEP(*(.eh_frame*))
bogdanm 81:7d30d6019079 73 } > FLASH
bogdanm 81:7d30d6019079 74
bogdanm 81:7d30d6019079 75 .ARM.extab :
bogdanm 81:7d30d6019079 76 {
bogdanm 81:7d30d6019079 77 *(.ARM.extab* .gnu.linkonce.armextab.*)
bogdanm 81:7d30d6019079 78 } > FLASH
bogdanm 81:7d30d6019079 79
bogdanm 81:7d30d6019079 80 __exidx_start = .;
bogdanm 81:7d30d6019079 81 .ARM.exidx :
bogdanm 81:7d30d6019079 82 {
bogdanm 81:7d30d6019079 83 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
bogdanm 81:7d30d6019079 84 } > FLASH
bogdanm 81:7d30d6019079 85 __exidx_end = .;
bogdanm 81:7d30d6019079 86
bogdanm 81:7d30d6019079 87 __etext = .;
bogdanm 81:7d30d6019079 88
bogdanm 81:7d30d6019079 89 .data : AT (__etext)
bogdanm 81:7d30d6019079 90 {
bogdanm 81:7d30d6019079 91 __data_start__ = .;
bogdanm 81:7d30d6019079 92 *(vtable)
bogdanm 81:7d30d6019079 93 *(.data*)
bogdanm 81:7d30d6019079 94
bogdanm 81:7d30d6019079 95 . = ALIGN(4);
bogdanm 81:7d30d6019079 96 /* preinit data */
bogdanm 81:7d30d6019079 97 PROVIDE (__preinit_array_start = .);
bogdanm 81:7d30d6019079 98 KEEP(*(.preinit_array))
bogdanm 81:7d30d6019079 99 PROVIDE (__preinit_array_end = .);
bogdanm 81:7d30d6019079 100
bogdanm 81:7d30d6019079 101 . = ALIGN(4);
bogdanm 81:7d30d6019079 102 /* init data */
bogdanm 81:7d30d6019079 103 PROVIDE (__init_array_start = .);
bogdanm 81:7d30d6019079 104 KEEP(*(SORT(.init_array.*)))
bogdanm 81:7d30d6019079 105 KEEP(*(.init_array))
bogdanm 81:7d30d6019079 106 PROVIDE (__init_array_end = .);
bogdanm 81:7d30d6019079 107
bogdanm 81:7d30d6019079 108
bogdanm 81:7d30d6019079 109 . = ALIGN(4);
bogdanm 81:7d30d6019079 110 /* finit data */
bogdanm 81:7d30d6019079 111 PROVIDE (__fini_array_start = .);
bogdanm 81:7d30d6019079 112 KEEP(*(SORT(.fini_array.*)))
bogdanm 81:7d30d6019079 113 KEEP(*(.fini_array))
bogdanm 81:7d30d6019079 114 PROVIDE (__fini_array_end = .);
bogdanm 81:7d30d6019079 115
bogdanm 81:7d30d6019079 116 . = ALIGN(4);
bogdanm 81:7d30d6019079 117 /* All data end */
bogdanm 81:7d30d6019079 118 __data_end__ = .;
bogdanm 81:7d30d6019079 119
bogdanm 81:7d30d6019079 120 } > RAM
bogdanm 81:7d30d6019079 121
bogdanm 81:7d30d6019079 122 .bss :
bogdanm 81:7d30d6019079 123 {
bogdanm 81:7d30d6019079 124 __bss_start__ = .;
bogdanm 81:7d30d6019079 125 *(.bss*)
bogdanm 81:7d30d6019079 126 *(COMMON)
bogdanm 81:7d30d6019079 127 __bss_end__ = .;
bogdanm 81:7d30d6019079 128 } > RAM
bogdanm 81:7d30d6019079 129
bogdanm 81:7d30d6019079 130 .heap :
bogdanm 81:7d30d6019079 131 {
bogdanm 81:7d30d6019079 132 __end__ = .;
bogdanm 81:7d30d6019079 133 end = __end__;
bogdanm 81:7d30d6019079 134 *(.heap*)
bogdanm 81:7d30d6019079 135 __HeapLimit = .;
bogdanm 81:7d30d6019079 136 } > RAM
bogdanm 81:7d30d6019079 137
bogdanm 81:7d30d6019079 138 /* .stack_dummy section doesn't contains any symbols. It is only
bogdanm 81:7d30d6019079 139 * used for linker to calculate size of stack sections, and assign
bogdanm 81:7d30d6019079 140 * values to stack symbols later */
bogdanm 81:7d30d6019079 141 .stack_dummy :
bogdanm 81:7d30d6019079 142 {
bogdanm 81:7d30d6019079 143 *(.stack)
bogdanm 81:7d30d6019079 144 } > RAM
bogdanm 81:7d30d6019079 145
bogdanm 81:7d30d6019079 146 /* Set stack top to end of RAM, and stack limit move down by
bogdanm 81:7d30d6019079 147 * size of stack_dummy section */
bogdanm 81:7d30d6019079 148 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
bogdanm 81:7d30d6019079 149 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
bogdanm 81:7d30d6019079 150 PROVIDE(__stack = __StackTop);
bogdanm 81:7d30d6019079 151
bogdanm 81:7d30d6019079 152 /* Check if data + heap + stack exceeds RAM limit */
bogdanm 81:7d30d6019079 153 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
bogdanm 81:7d30d6019079 154 }