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_DISCO_L476VG/TOOLCHAIN_GCC_ARM/STM32L476XX.ld@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
163:e59c8e839560
Child:
172:65be27845400
mbed library. Release version 164

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1 #if !defined(MBED_APP_START)
AnnaBridge 156:ff21514d8981 2 #define MBED_APP_START 0x08000000
AnnaBridge 156:ff21514d8981 3 #endif
AnnaBridge 156:ff21514d8981 4
AnnaBridge 156:ff21514d8981 5 #if !defined(MBED_APP_SIZE)
AnnaBridge 156:ff21514d8981 6 #define MBED_APP_SIZE 1024k
AnnaBridge 156:ff21514d8981 7 #endif
AnnaBridge 156:ff21514d8981 8
AnnaBridge 156:ff21514d8981 9 /* Linker script to configure memory regions. */
AnnaBridge 156:ff21514d8981 10 MEMORY
AnnaBridge 156:ff21514d8981 11 {
AnnaBridge 156:ff21514d8981 12 FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
AnnaBridge 156:ff21514d8981 13 SRAM2 (rwx) : ORIGIN = 0x10000188, LENGTH = 32k - 0x188
AnnaBridge 156:ff21514d8981 14 SRAM1 (rwx) : ORIGIN = 0x20000000, LENGTH = 96k
AnnaBridge 156:ff21514d8981 15 }
AnnaBridge 156:ff21514d8981 16
AnnaBridge 156:ff21514d8981 17 /* Linker script to place sections and symbol values. Should be used together
AnnaBridge 156:ff21514d8981 18 * with other linker script that defines memory regions FLASH and RAM.
AnnaBridge 156:ff21514d8981 19 * It references following symbols, which must be defined in code:
AnnaBridge 156:ff21514d8981 20 * Reset_Handler : Entry of reset handler
AnnaBridge 156:ff21514d8981 21 *
AnnaBridge 156:ff21514d8981 22 * It defines following symbols, which code can use without definition:
AnnaBridge 156:ff21514d8981 23 * __exidx_start
AnnaBridge 156:ff21514d8981 24 * __exidx_end
AnnaBridge 156:ff21514d8981 25 * __etext
AnnaBridge 156:ff21514d8981 26 * __data_start__
AnnaBridge 156:ff21514d8981 27 * __preinit_array_start
AnnaBridge 156:ff21514d8981 28 * __preinit_array_end
AnnaBridge 156:ff21514d8981 29 * __init_array_start
AnnaBridge 156:ff21514d8981 30 * __init_array_end
AnnaBridge 156:ff21514d8981 31 * __fini_array_start
AnnaBridge 156:ff21514d8981 32 * __fini_array_end
AnnaBridge 156:ff21514d8981 33 * __data_end__
AnnaBridge 156:ff21514d8981 34 * __bss_start__
AnnaBridge 156:ff21514d8981 35 * __bss_end__
AnnaBridge 156:ff21514d8981 36 * __end__
AnnaBridge 156:ff21514d8981 37 * end
AnnaBridge 156:ff21514d8981 38 * __HeapLimit
AnnaBridge 156:ff21514d8981 39 * __StackLimit
AnnaBridge 156:ff21514d8981 40 * __StackTop
AnnaBridge 156:ff21514d8981 41 * __stack
AnnaBridge 156:ff21514d8981 42 * _estack
AnnaBridge 156:ff21514d8981 43 */
AnnaBridge 156:ff21514d8981 44 ENTRY(Reset_Handler)
AnnaBridge 156:ff21514d8981 45
AnnaBridge 156:ff21514d8981 46 SECTIONS
AnnaBridge 156:ff21514d8981 47 {
AnnaBridge 156:ff21514d8981 48 .text :
AnnaBridge 156:ff21514d8981 49 {
AnnaBridge 156:ff21514d8981 50 KEEP(*(.isr_vector))
AnnaBridge 156:ff21514d8981 51 *(.text*)
AnnaBridge 156:ff21514d8981 52 KEEP(*(.init))
AnnaBridge 156:ff21514d8981 53 KEEP(*(.fini))
AnnaBridge 156:ff21514d8981 54
AnnaBridge 156:ff21514d8981 55 /* .ctors */
AnnaBridge 156:ff21514d8981 56 *crtbegin.o(.ctors)
AnnaBridge 156:ff21514d8981 57 *crtbegin?.o(.ctors)
AnnaBridge 156:ff21514d8981 58 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
AnnaBridge 156:ff21514d8981 59 *(SORT(.ctors.*))
AnnaBridge 156:ff21514d8981 60 *(.ctors)
AnnaBridge 156:ff21514d8981 61
AnnaBridge 156:ff21514d8981 62 /* .dtors */
AnnaBridge 156:ff21514d8981 63 *crtbegin.o(.dtors)
AnnaBridge 156:ff21514d8981 64 *crtbegin?.o(.dtors)
AnnaBridge 156:ff21514d8981 65 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
AnnaBridge 156:ff21514d8981 66 *(SORT(.dtors.*))
AnnaBridge 156:ff21514d8981 67 *(.dtors)
AnnaBridge 156:ff21514d8981 68
AnnaBridge 156:ff21514d8981 69 *(.rodata*)
AnnaBridge 156:ff21514d8981 70
AnnaBridge 156:ff21514d8981 71 KEEP(*(.eh_frame*))
AnnaBridge 156:ff21514d8981 72 } > FLASH
AnnaBridge 156:ff21514d8981 73
AnnaBridge 156:ff21514d8981 74 .ARM.extab :
AnnaBridge 156:ff21514d8981 75 {
AnnaBridge 156:ff21514d8981 76 *(.ARM.extab* .gnu.linkonce.armextab.*)
AnnaBridge 156:ff21514d8981 77 } > FLASH
AnnaBridge 156:ff21514d8981 78
AnnaBridge 156:ff21514d8981 79 __exidx_start = .;
AnnaBridge 156:ff21514d8981 80 .ARM.exidx :
AnnaBridge 156:ff21514d8981 81 {
AnnaBridge 156:ff21514d8981 82 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
AnnaBridge 156:ff21514d8981 83 } > FLASH
AnnaBridge 156:ff21514d8981 84 __exidx_end = .;
AnnaBridge 156:ff21514d8981 85
AnnaBridge 156:ff21514d8981 86 __etext = .;
AnnaBridge 156:ff21514d8981 87 _sidata = .;
AnnaBridge 156:ff21514d8981 88
AnnaBridge 156:ff21514d8981 89 .data : AT (__etext)
AnnaBridge 156:ff21514d8981 90 {
AnnaBridge 156:ff21514d8981 91 __data_start__ = .;
AnnaBridge 156:ff21514d8981 92 _sdata = .;
AnnaBridge 156:ff21514d8981 93 *(vtable)
AnnaBridge 156:ff21514d8981 94 *(.data*)
AnnaBridge 156:ff21514d8981 95
AnnaBridge 171:3a7713b1edbc 96 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 97 /* preinit data */
AnnaBridge 156:ff21514d8981 98 PROVIDE_HIDDEN (__preinit_array_start = .);
AnnaBridge 156:ff21514d8981 99 KEEP(*(.preinit_array))
AnnaBridge 156:ff21514d8981 100 PROVIDE_HIDDEN (__preinit_array_end = .);
AnnaBridge 156:ff21514d8981 101
AnnaBridge 171:3a7713b1edbc 102 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 103 /* init data */
AnnaBridge 156:ff21514d8981 104 PROVIDE_HIDDEN (__init_array_start = .);
AnnaBridge 156:ff21514d8981 105 KEEP(*(SORT(.init_array.*)))
AnnaBridge 156:ff21514d8981 106 KEEP(*(.init_array))
AnnaBridge 156:ff21514d8981 107 PROVIDE_HIDDEN (__init_array_end = .);
AnnaBridge 156:ff21514d8981 108
AnnaBridge 156:ff21514d8981 109
AnnaBridge 171:3a7713b1edbc 110 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 111 /* finit data */
AnnaBridge 156:ff21514d8981 112 PROVIDE_HIDDEN (__fini_array_start = .);
AnnaBridge 156:ff21514d8981 113 KEEP(*(SORT(.fini_array.*)))
AnnaBridge 156:ff21514d8981 114 KEEP(*(.fini_array))
AnnaBridge 156:ff21514d8981 115 PROVIDE_HIDDEN (__fini_array_end = .);
AnnaBridge 156:ff21514d8981 116
AnnaBridge 156:ff21514d8981 117 KEEP(*(.jcr*))
AnnaBridge 171:3a7713b1edbc 118 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 119 /* All data end */
AnnaBridge 156:ff21514d8981 120 __data_end__ = .;
AnnaBridge 156:ff21514d8981 121 _edata = .;
AnnaBridge 156:ff21514d8981 122
AnnaBridge 156:ff21514d8981 123 } > SRAM1
AnnaBridge 156:ff21514d8981 124
AnnaBridge 156:ff21514d8981 125 .bss :
AnnaBridge 156:ff21514d8981 126 {
AnnaBridge 171:3a7713b1edbc 127 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 128 __bss_start__ = .;
AnnaBridge 156:ff21514d8981 129 _sbss = .;
AnnaBridge 156:ff21514d8981 130 *(.bss*)
AnnaBridge 156:ff21514d8981 131 *(COMMON)
AnnaBridge 171:3a7713b1edbc 132 . = ALIGN(8);
AnnaBridge 156:ff21514d8981 133 __bss_end__ = .;
AnnaBridge 156:ff21514d8981 134 _ebss = .;
AnnaBridge 156:ff21514d8981 135 } > SRAM1
AnnaBridge 156:ff21514d8981 136
AnnaBridge 156:ff21514d8981 137 .heap (COPY):
AnnaBridge 156:ff21514d8981 138 {
AnnaBridge 156:ff21514d8981 139 __end__ = .;
AnnaBridge 156:ff21514d8981 140 end = __end__;
AnnaBridge 156:ff21514d8981 141 *(.heap*)
AnnaBridge 163:e59c8e839560 142 . += (ORIGIN(SRAM1) + LENGTH(SRAM1) - .);
AnnaBridge 156:ff21514d8981 143 __HeapLimit = .;
AnnaBridge 156:ff21514d8981 144 } > SRAM1
AnnaBridge 163:e59c8e839560 145 PROVIDE(__heap_size = SIZEOF(.heap));
AnnaBridge 163:e59c8e839560 146 PROVIDE(__mbed_sbrk_start = ADDR(.heap));
AnnaBridge 163:e59c8e839560 147 PROVIDE(__mbed_krbs_start = ADDR(.heap) + SIZEOF(.heap));
AnnaBridge 163:e59c8e839560 148 /* Check if data + heap exceeds RAM1 limit */
AnnaBridge 163:e59c8e839560 149 ASSERT((ORIGIN(SRAM1)+LENGTH(SRAM1)) >= __HeapLimit, "SRAM1 overflow")
AnnaBridge 156:ff21514d8981 150 /* .stack_dummy section doesn't contains any symbols. It is only
AnnaBridge 156:ff21514d8981 151 * used for linker to calculate size of stack sections, and assign
AnnaBridge 156:ff21514d8981 152 * values to stack symbols later */
AnnaBridge 156:ff21514d8981 153 .stack_dummy (COPY):
AnnaBridge 156:ff21514d8981 154 {
AnnaBridge 156:ff21514d8981 155 *(.stack*)
AnnaBridge 163:e59c8e839560 156 } > SRAM2
AnnaBridge 156:ff21514d8981 157
AnnaBridge 156:ff21514d8981 158 /* Set stack top to end of RAM, and stack limit move down by
AnnaBridge 156:ff21514d8981 159 * size of stack_dummy section */
AnnaBridge 163:e59c8e839560 160 __StackTop = ORIGIN(SRAM2) + LENGTH(SRAM2);
AnnaBridge 156:ff21514d8981 161 _estack = __StackTop;
AnnaBridge 156:ff21514d8981 162 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
AnnaBridge 156:ff21514d8981 163 PROVIDE(__stack = __StackTop);
AnnaBridge 163:e59c8e839560 164 /* Check if stack exceeds RAM2 limit */
AnnaBridge 163:e59c8e839560 165 ASSERT((ORIGIN(SRAM2)+LENGTH(SRAM2)) >= __StackLimit, "SRAM2 overflow")
AnnaBridge 156:ff21514d8981 166
AnnaBridge 156:ff21514d8981 167 }