mbed official / mbed

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

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mbed 2

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

TARGET_SAKURAIO_EVB_01/TOOLCHAIN_GCC_ARM/STM32F411XE.ld@170:e95d10626187, 2018-09-06 (annotated)

Committer:
AnnaBridge
Date:
Thu Sep 06 13:39:34 2018 +0100
Revision:
170:e95d10626187
Parent:
167:84c0a372a020
Child:
171:3a7713b1edbc
mbed library. Release version 163

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 167:84c0a372a020 1 #if !defined(MBED_APP_START)
AnnaBridge 167:84c0a372a020 2 #define MBED_APP_START 0x08000000
AnnaBridge 167:84c0a372a020 3 #endif
AnnaBridge 167:84c0a372a020 4
AnnaBridge 167:84c0a372a020 5 #if !defined(MBED_APP_SIZE)
AnnaBridge 167:84c0a372a020 6 #define MBED_APP_SIZE 512K
AnnaBridge 167:84c0a372a020 7 #endif
AnnaBridge 167:84c0a372a020 8
Anna Bridge 160:5571c4ff569f 9 /* Linker script to configure memory regions. */
Anna Bridge 160:5571c4ff569f 10 MEMORY
AnnaBridge 167:84c0a372a020 11 {
AnnaBridge 167:84c0a372a020 12 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
Anna Bridge 160:5571c4ff569f 13 RAM (rwx) : ORIGIN = 0x20000198, LENGTH = 128k - 0x198
Anna Bridge 160:5571c4ff569f 14 }
Anna Bridge 160:5571c4ff569f 15
Anna Bridge 160:5571c4ff569f 16 /* Linker script to place sections and symbol values. Should be used together
Anna Bridge 160:5571c4ff569f 17 * with other linker script that defines memory regions FLASH and RAM.
Anna Bridge 160:5571c4ff569f 18 * It references following symbols, which must be defined in code:
Anna Bridge 160:5571c4ff569f 19 * Reset_Handler : Entry of reset handler
Anna Bridge 160:5571c4ff569f 20 *
Anna Bridge 160:5571c4ff569f 21 * It defines following symbols, which code can use without definition:
Anna Bridge 160:5571c4ff569f 22 * __exidx_start
Anna Bridge 160:5571c4ff569f 23 * __exidx_end
Anna Bridge 160:5571c4ff569f 24 * __etext
Anna Bridge 160:5571c4ff569f 25 * __data_start__
Anna Bridge 160:5571c4ff569f 26 * __preinit_array_start
Anna Bridge 160:5571c4ff569f 27 * __preinit_array_end
Anna Bridge 160:5571c4ff569f 28 * __init_array_start
Anna Bridge 160:5571c4ff569f 29 * __init_array_end
Anna Bridge 160:5571c4ff569f 30 * __fini_array_start
Anna Bridge 160:5571c4ff569f 31 * __fini_array_end
Anna Bridge 160:5571c4ff569f 32 * __data_end__
Anna Bridge 160:5571c4ff569f 33 * __bss_start__
Anna Bridge 160:5571c4ff569f 34 * __bss_end__
Anna Bridge 160:5571c4ff569f 35 * __end__
Anna Bridge 160:5571c4ff569f 36 * end
Anna Bridge 160:5571c4ff569f 37 * __HeapLimit
Anna Bridge 160:5571c4ff569f 38 * __StackLimit
Anna Bridge 160:5571c4ff569f 39 * __StackTop
Anna Bridge 160:5571c4ff569f 40 * __stack
Anna Bridge 160:5571c4ff569f 41 * _estack
Anna Bridge 160:5571c4ff569f 42 */
Anna Bridge 160:5571c4ff569f 43 ENTRY(Reset_Handler)
Anna Bridge 160:5571c4ff569f 44
Anna Bridge 160:5571c4ff569f 45 SECTIONS
Anna Bridge 160:5571c4ff569f 46 {
Anna Bridge 160:5571c4ff569f 47 .text :
Anna Bridge 160:5571c4ff569f 48 {
Anna Bridge 160:5571c4ff569f 49 KEEP(*(.isr_vector))
Anna Bridge 160:5571c4ff569f 50 *(.text*)
Anna Bridge 160:5571c4ff569f 51 KEEP(*(.init))
Anna Bridge 160:5571c4ff569f 52 KEEP(*(.fini))
Anna Bridge 160:5571c4ff569f 53
Anna Bridge 160:5571c4ff569f 54 /* .ctors */
Anna Bridge 160:5571c4ff569f 55 *crtbegin.o(.ctors)
Anna Bridge 160:5571c4ff569f 56 *crtbegin?.o(.ctors)
Anna Bridge 160:5571c4ff569f 57 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
Anna Bridge 160:5571c4ff569f 58 *(SORT(.ctors.*))
Anna Bridge 160:5571c4ff569f 59 *(.ctors)
Anna Bridge 160:5571c4ff569f 60
Anna Bridge 160:5571c4ff569f 61 /* .dtors */
Anna Bridge 160:5571c4ff569f 62 *crtbegin.o(.dtors)
Anna Bridge 160:5571c4ff569f 63 *crtbegin?.o(.dtors)
Anna Bridge 160:5571c4ff569f 64 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
Anna Bridge 160:5571c4ff569f 65 *(SORT(.dtors.*))
Anna Bridge 160:5571c4ff569f 66 *(.dtors)
Anna Bridge 160:5571c4ff569f 67
Anna Bridge 160:5571c4ff569f 68 *(.rodata*)
Anna Bridge 160:5571c4ff569f 69
Anna Bridge 160:5571c4ff569f 70 KEEP(*(.eh_frame*))
Anna Bridge 160:5571c4ff569f 71 } > FLASH
Anna Bridge 160:5571c4ff569f 72
Anna Bridge 160:5571c4ff569f 73 .ARM.extab :
Anna Bridge 160:5571c4ff569f 74 {
Anna Bridge 160:5571c4ff569f 75 *(.ARM.extab* .gnu.linkonce.armextab.*)
Anna Bridge 160:5571c4ff569f 76 } > FLASH
Anna Bridge 160:5571c4ff569f 77
Anna Bridge 160:5571c4ff569f 78 __exidx_start = .;
Anna Bridge 160:5571c4ff569f 79 .ARM.exidx :
Anna Bridge 160:5571c4ff569f 80 {
Anna Bridge 160:5571c4ff569f 81 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
Anna Bridge 160:5571c4ff569f 82 } > FLASH
Anna Bridge 160:5571c4ff569f 83 __exidx_end = .;
Anna Bridge 160:5571c4ff569f 84
Anna Bridge 160:5571c4ff569f 85 __etext = .;
Anna Bridge 160:5571c4ff569f 86 _sidata = .;
Anna Bridge 160:5571c4ff569f 87
Anna Bridge 160:5571c4ff569f 88 .data : AT (__etext)
Anna Bridge 160:5571c4ff569f 89 {
Anna Bridge 160:5571c4ff569f 90 __data_start__ = .;
Anna Bridge 160:5571c4ff569f 91 _sdata = .;
Anna Bridge 160:5571c4ff569f 92 *(vtable)
Anna Bridge 160:5571c4ff569f 93 *(.data*)
Anna Bridge 160:5571c4ff569f 94
Anna Bridge 160:5571c4ff569f 95 . = ALIGN(4);
Anna Bridge 160:5571c4ff569f 96 /* preinit data */
Anna Bridge 160:5571c4ff569f 97 PROVIDE_HIDDEN (__preinit_array_start = .);
Anna Bridge 160:5571c4ff569f 98 KEEP(*(.preinit_array))
Anna Bridge 160:5571c4ff569f 99 PROVIDE_HIDDEN (__preinit_array_end = .);
Anna Bridge 160:5571c4ff569f 100
Anna Bridge 160:5571c4ff569f 101 . = ALIGN(4);
Anna Bridge 160:5571c4ff569f 102 /* init data */
Anna Bridge 160:5571c4ff569f 103 PROVIDE_HIDDEN (__init_array_start = .);
Anna Bridge 160:5571c4ff569f 104 KEEP(*(SORT(.init_array.*)))
Anna Bridge 160:5571c4ff569f 105 KEEP(*(.init_array))
Anna Bridge 160:5571c4ff569f 106 PROVIDE_HIDDEN (__init_array_end = .);
Anna Bridge 160:5571c4ff569f 107
Anna Bridge 160:5571c4ff569f 108
Anna Bridge 160:5571c4ff569f 109 . = ALIGN(4);
Anna Bridge 160:5571c4ff569f 110 /* finit data */
Anna Bridge 160:5571c4ff569f 111 PROVIDE_HIDDEN (__fini_array_start = .);
Anna Bridge 160:5571c4ff569f 112 KEEP(*(SORT(.fini_array.*)))
Anna Bridge 160:5571c4ff569f 113 KEEP(*(.fini_array))
Anna Bridge 160:5571c4ff569f 114 PROVIDE_HIDDEN (__fini_array_end = .);
Anna Bridge 160:5571c4ff569f 115
Anna Bridge 160:5571c4ff569f 116 KEEP(*(.jcr*))
Anna Bridge 160:5571c4ff569f 117 . = ALIGN(4);
Anna Bridge 160:5571c4ff569f 118 /* All data end */
Anna Bridge 160:5571c4ff569f 119 __data_end__ = .;
Anna Bridge 160:5571c4ff569f 120 _edata = .;
Anna Bridge 160:5571c4ff569f 121
Anna Bridge 160:5571c4ff569f 122 } > RAM
Anna Bridge 160:5571c4ff569f 123
Anna Bridge 160:5571c4ff569f 124 .bss :
Anna Bridge 160:5571c4ff569f 125 {
Anna Bridge 160:5571c4ff569f 126 . = ALIGN(4);
Anna Bridge 160:5571c4ff569f 127 __bss_start__ = .;
Anna Bridge 160:5571c4ff569f 128 _sbss = .;
Anna Bridge 160:5571c4ff569f 129 *(.bss*)
Anna Bridge 160:5571c4ff569f 130 *(COMMON)
Anna Bridge 160:5571c4ff569f 131 . = ALIGN(4);
Anna Bridge 160:5571c4ff569f 132 __bss_end__ = .;
Anna Bridge 160:5571c4ff569f 133 _ebss = .;
Anna Bridge 160:5571c4ff569f 134 } > RAM
Anna Bridge 160:5571c4ff569f 135
Anna Bridge 160:5571c4ff569f 136 .heap (COPY):
Anna Bridge 160:5571c4ff569f 137 {
Anna Bridge 160:5571c4ff569f 138 __end__ = .;
Anna Bridge 160:5571c4ff569f 139 end = __end__;
Anna Bridge 160:5571c4ff569f 140 *(.heap*)
Anna Bridge 160:5571c4ff569f 141 __HeapLimit = .;
Anna Bridge 160:5571c4ff569f 142 } > RAM
Anna Bridge 160:5571c4ff569f 143
Anna Bridge 160:5571c4ff569f 144 /* .stack_dummy section doesn't contains any symbols. It is only
Anna Bridge 160:5571c4ff569f 145 * used for linker to calculate size of stack sections, and assign
Anna Bridge 160:5571c4ff569f 146 * values to stack symbols later */
Anna Bridge 160:5571c4ff569f 147 .stack_dummy (COPY):
Anna Bridge 160:5571c4ff569f 148 {
Anna Bridge 160:5571c4ff569f 149 *(.stack*)
Anna Bridge 160:5571c4ff569f 150 } > RAM
Anna Bridge 160:5571c4ff569f 151
Anna Bridge 160:5571c4ff569f 152 /* Set stack top to end of RAM, and stack limit move down by
Anna Bridge 160:5571c4ff569f 153 * size of stack_dummy section */
Anna Bridge 160:5571c4ff569f 154 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
Anna Bridge 160:5571c4ff569f 155 _estack = __StackTop;
Anna Bridge 160:5571c4ff569f 156 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
Anna Bridge 160:5571c4ff569f 157 PROVIDE(__stack = __StackTop);
Anna Bridge 160:5571c4ff569f 158
Anna Bridge 160:5571c4ff569f 159 /* Check if data + heap + stack exceeds RAM limit */
Anna Bridge 160:5571c4ff569f 160 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
Anna Bridge 160:5571c4ff569f 161 }