mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_WIZWIKI_W7500/TOOLCHAIN_GCC_ARM/W7500.ld@162:dbaafcfe0e9d, 2018-03-19 (annotated)

Committer:
AnnaBridge
Date:
Mon Mar 19 15:30:13 2018 +0000
Revision:
162:dbaafcfe0e9d
Child:
171:3a7713b1edbc
mbed library. Release version 160

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 162:dbaafcfe0e9d 1 /* Linker script to configure memory regions. */
AnnaBridge 162:dbaafcfe0e9d 2 MEMORY
AnnaBridge 162:dbaafcfe0e9d 3 {
AnnaBridge 162:dbaafcfe0e9d 4 FLASH (rx) : ORIGIN = 0x0, LENGTH = 0x20000 /* 128K */
AnnaBridge 162:dbaafcfe0e9d 5 RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000 /* 16K */
AnnaBridge 162:dbaafcfe0e9d 6 }
AnnaBridge 162:dbaafcfe0e9d 7
AnnaBridge 162:dbaafcfe0e9d 8 /* Library configurations */
AnnaBridge 162:dbaafcfe0e9d 9 GROUP(libgcc.a libc.a libm.a libnosys.a)
AnnaBridge 162:dbaafcfe0e9d 10
AnnaBridge 162:dbaafcfe0e9d 11 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 162:dbaafcfe0e9d 12 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 162:dbaafcfe0e9d 13 * It references following symbols, which must be defined in code:
AnnaBridge 162:dbaafcfe0e9d 14 * Reset_Handler : Entry of reset handler
AnnaBridge 162:dbaafcfe0e9d 15 *
AnnaBridge 162:dbaafcfe0e9d 16 * It defines following symbols, which code can use without definition:
AnnaBridge 162:dbaafcfe0e9d 17 * __exidx_start
AnnaBridge 162:dbaafcfe0e9d 18 * __exidx_end
AnnaBridge 162:dbaafcfe0e9d 19 * __etext
AnnaBridge 162:dbaafcfe0e9d 20 * __data_start__
AnnaBridge 162:dbaafcfe0e9d 21 * __preinit_array_start
AnnaBridge 162:dbaafcfe0e9d 22 * __preinit_array_end
AnnaBridge 162:dbaafcfe0e9d 23 * __init_array_start
AnnaBridge 162:dbaafcfe0e9d 24 * __init_array_end
AnnaBridge 162:dbaafcfe0e9d 25 * __fini_array_start
AnnaBridge 162:dbaafcfe0e9d 26 * __fini_array_end
AnnaBridge 162:dbaafcfe0e9d 27 * __data_end__
AnnaBridge 162:dbaafcfe0e9d 28 * __bss_start__
AnnaBridge 162:dbaafcfe0e9d 29 * __bss_end__
AnnaBridge 162:dbaafcfe0e9d 30 * __end__
AnnaBridge 162:dbaafcfe0e9d 31 * end
AnnaBridge 162:dbaafcfe0e9d 32 * __HeapLimit
AnnaBridge 162:dbaafcfe0e9d 33 * __StackLimit
AnnaBridge 162:dbaafcfe0e9d 34 * __StackTop
AnnaBridge 162:dbaafcfe0e9d 35 * __stack
AnnaBridge 162:dbaafcfe0e9d 36 */
AnnaBridge 162:dbaafcfe0e9d 37 ENTRY(Reset_Handler)
AnnaBridge 162:dbaafcfe0e9d 38
AnnaBridge 162:dbaafcfe0e9d 39 SECTIONS
AnnaBridge 162:dbaafcfe0e9d 40 {
AnnaBridge 162:dbaafcfe0e9d 41 .text :
AnnaBridge 162:dbaafcfe0e9d 42 {
AnnaBridge 162:dbaafcfe0e9d 43 KEEP(*(.isr_vector))
AnnaBridge 162:dbaafcfe0e9d 44 *(.text*)
AnnaBridge 162:dbaafcfe0e9d 45
AnnaBridge 162:dbaafcfe0e9d 46 KEEP(*(.init))
AnnaBridge 162:dbaafcfe0e9d 47 KEEP(*(.fini))
AnnaBridge 162:dbaafcfe0e9d 48
AnnaBridge 162:dbaafcfe0e9d 49 /* .ctors */
AnnaBridge 162:dbaafcfe0e9d 50 *crtbegin.o(.ctors)
AnnaBridge 162:dbaafcfe0e9d 51 *crtbegin?.o(.ctors)
AnnaBridge 162:dbaafcfe0e9d 52 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 162:dbaafcfe0e9d 53 *(SORT(.ctors.*))
AnnaBridge 162:dbaafcfe0e9d 54 *(.ctors)
AnnaBridge 162:dbaafcfe0e9d 55
AnnaBridge 162:dbaafcfe0e9d 56 /* .dtors */
AnnaBridge 162:dbaafcfe0e9d 57 *crtbegin.o(.dtors)
AnnaBridge 162:dbaafcfe0e9d 58 *crtbegin?.o(.dtors)
AnnaBridge 162:dbaafcfe0e9d 59 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 162:dbaafcfe0e9d 60 *(SORT(.dtors.*))
AnnaBridge 162:dbaafcfe0e9d 61 *(.dtors)
AnnaBridge 162:dbaafcfe0e9d 62
AnnaBridge 162:dbaafcfe0e9d 63 *(.rodata*)
AnnaBridge 162:dbaafcfe0e9d 64
AnnaBridge 162:dbaafcfe0e9d 65 KEEP(*(.eh_frame*))
AnnaBridge 162:dbaafcfe0e9d 66 } > FLASH
AnnaBridge 162:dbaafcfe0e9d 67
AnnaBridge 162:dbaafcfe0e9d 68 .ARM.extab :
AnnaBridge 162:dbaafcfe0e9d 69 {
AnnaBridge 162:dbaafcfe0e9d 70 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 162:dbaafcfe0e9d 71 } > FLASH
AnnaBridge 162:dbaafcfe0e9d 72
AnnaBridge 162:dbaafcfe0e9d 73 __exidx_start = .;
AnnaBridge 162:dbaafcfe0e9d 74 .ARM.exidx :
AnnaBridge 162:dbaafcfe0e9d 75 {
AnnaBridge 162:dbaafcfe0e9d 76 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 162:dbaafcfe0e9d 77 } > FLASH
AnnaBridge 162:dbaafcfe0e9d 78 __exidx_end = .;
AnnaBridge 162:dbaafcfe0e9d 79
AnnaBridge 162:dbaafcfe0e9d 80 __etext = .;
AnnaBridge 162:dbaafcfe0e9d 81
AnnaBridge 162:dbaafcfe0e9d 82 .data : AT (__etext)
AnnaBridge 162:dbaafcfe0e9d 83 {
AnnaBridge 162:dbaafcfe0e9d 84 __data_start__ = .;
AnnaBridge 162:dbaafcfe0e9d 85 *(vtable)
AnnaBridge 162:dbaafcfe0e9d 86 *(.data*)
AnnaBridge 162:dbaafcfe0e9d 87
AnnaBridge 162:dbaafcfe0e9d 88 . = ALIGN(4);
AnnaBridge 162:dbaafcfe0e9d 89 /* preinit data */
AnnaBridge 162:dbaafcfe0e9d 90 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 162:dbaafcfe0e9d 91 KEEP(*(.preinit_array))
AnnaBridge 162:dbaafcfe0e9d 92 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 162:dbaafcfe0e9d 93
AnnaBridge 162:dbaafcfe0e9d 94 . = ALIGN(4);
AnnaBridge 162:dbaafcfe0e9d 95 /* init data */
AnnaBridge 162:dbaafcfe0e9d 96 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 162:dbaafcfe0e9d 97 KEEP(*(SORT(.init_array.*)))
AnnaBridge 162:dbaafcfe0e9d 98 KEEP(*(.init_array))
AnnaBridge 162:dbaafcfe0e9d 99 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 162:dbaafcfe0e9d 100
AnnaBridge 162:dbaafcfe0e9d 101
AnnaBridge 162:dbaafcfe0e9d 102 . = ALIGN(4);
AnnaBridge 162:dbaafcfe0e9d 103 /* finit data */
AnnaBridge 162:dbaafcfe0e9d 104 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 162:dbaafcfe0e9d 105 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 162:dbaafcfe0e9d 106 KEEP(*(.fini_array))
AnnaBridge 162:dbaafcfe0e9d 107 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 162:dbaafcfe0e9d 108
AnnaBridge 162:dbaafcfe0e9d 109 KEEP(*(.jcr*))
AnnaBridge 162:dbaafcfe0e9d 110 . = ALIGN(4);
AnnaBridge 162:dbaafcfe0e9d 111 /* All data end */
AnnaBridge 162:dbaafcfe0e9d 112 __data_end__ = .;
AnnaBridge 162:dbaafcfe0e9d 113
AnnaBridge 162:dbaafcfe0e9d 114 } > RAM
AnnaBridge 162:dbaafcfe0e9d 115
AnnaBridge 162:dbaafcfe0e9d 116 .bss :
AnnaBridge 162:dbaafcfe0e9d 117 {
AnnaBridge 162:dbaafcfe0e9d 118 . = ALIGN(4);
AnnaBridge 162:dbaafcfe0e9d 119 __bss_start__ = .;
AnnaBridge 162:dbaafcfe0e9d 120 *(.bss*)
AnnaBridge 162:dbaafcfe0e9d 121 *(COMMON)
AnnaBridge 162:dbaafcfe0e9d 122 . = ALIGN(4);
AnnaBridge 162:dbaafcfe0e9d 123 __bss_end__ = .;
AnnaBridge 162:dbaafcfe0e9d 124 } > RAM
AnnaBridge 162:dbaafcfe0e9d 125
AnnaBridge 162:dbaafcfe0e9d 126 .heap (COPY):
AnnaBridge 162:dbaafcfe0e9d 127 {
AnnaBridge 162:dbaafcfe0e9d 128 __end__ = .;
AnnaBridge 162:dbaafcfe0e9d 129 end = __end__;
AnnaBridge 162:dbaafcfe0e9d 130 *(.heap*)
AnnaBridge 162:dbaafcfe0e9d 131 __HeapLimit = .;
AnnaBridge 162:dbaafcfe0e9d 132 } > RAM
AnnaBridge 162:dbaafcfe0e9d 133
AnnaBridge 162:dbaafcfe0e9d 134 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 162:dbaafcfe0e9d 135 * used for linker to calculate size of stack sections, and assign
AnnaBridge 162:dbaafcfe0e9d 136 * values to stack symbols later */
AnnaBridge 162:dbaafcfe0e9d 137 .stack_dummy (COPY):
AnnaBridge 162:dbaafcfe0e9d 138 {
AnnaBridge 162:dbaafcfe0e9d 139 *(.stack*)
AnnaBridge 162:dbaafcfe0e9d 140 } > RAM
AnnaBridge 162:dbaafcfe0e9d 141
AnnaBridge 162:dbaafcfe0e9d 142
AnnaBridge 162:dbaafcfe0e9d 143 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 162:dbaafcfe0e9d 144 * size of stack_dummy section */
AnnaBridge 162:dbaafcfe0e9d 145 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
AnnaBridge 162:dbaafcfe0e9d 146 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 162:dbaafcfe0e9d 147 PROVIDE(__stack = __StackTop);
AnnaBridge 162:dbaafcfe0e9d 148
AnnaBridge 162:dbaafcfe0e9d 149 /* Check if data + heap + stack exceeds RAM limit */
AnnaBridge 162:dbaafcfe0e9d 150 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
AnnaBridge 162:dbaafcfe0e9d 151 }
AnnaBridge 162:dbaafcfe0e9d 152