sai kiran / mbed-src

Watchdog Timer

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L4/TARGET_NUCLEO_L476RG/TOOLCHAIN_GCC_ARM/STM32L476XX.ld@630:1806c2edb763, 2015-09-28 (annotated)

Committer:
mbed_official
Date:
Mon Sep 28 10:30:09 2015 +0100
Revision:
630:1806c2edb763
Parent:
623:db79ecd649d0 
Synchronized with git revision 87e468c302cd3e5d0f840971ca587ba8c50847bf



Full URL: https://github.com/mbedmicro/mbed/commit/87e468c302cd3e5d0f840971ca587ba8c50847bf/



Fixed stack location problem for disco and nucleo boards (STM32L4)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 623:db79ecd649d0 1 /* Linker script to configure memory regions. */
mbed_official 623:db79ecd649d0 2 MEMORY
mbed_official 623:db79ecd649d0 3 {
mbed_official 623:db79ecd649d0 4 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
mbed_official 630:1806c2edb763 5 SRAM2 (rwx) : ORIGIN = 0x10000188, LENGTH = 32k - 0x188
mbed_official 630:1806c2edb763 6 SRAM1 (rwx) : ORIGIN = 0x20000000, LENGTH = 96k
mbed_official 623:db79ecd649d0 7 }
mbed_official 623:db79ecd649d0 8
mbed_official 623:db79ecd649d0 9 /* Linker script to place sections and symbol values. Should be used together
mbed_official 623:db79ecd649d0 10 * with other linker script that defines memory regions FLASH and RAM.
mbed_official 623:db79ecd649d0 11 * It references following symbols, which must be defined in code:
mbed_official 623:db79ecd649d0 12 * Reset_Handler : Entry of reset handler
mbed_official 623:db79ecd649d0 13 *
mbed_official 623:db79ecd649d0 14 * It defines following symbols, which code can use without definition:
mbed_official 623:db79ecd649d0 15 * __exidx_start
mbed_official 623:db79ecd649d0 16 * __exidx_end
mbed_official 623:db79ecd649d0 17 * __etext
mbed_official 623:db79ecd649d0 18 * __data_start__
mbed_official 623:db79ecd649d0 19 * __preinit_array_start
mbed_official 623:db79ecd649d0 20 * __preinit_array_end
mbed_official 623:db79ecd649d0 21 * __init_array_start
mbed_official 623:db79ecd649d0 22 * __init_array_end
mbed_official 623:db79ecd649d0 23 * __fini_array_start
mbed_official 623:db79ecd649d0 24 * __fini_array_end
mbed_official 623:db79ecd649d0 25 * __data_end__
mbed_official 623:db79ecd649d0 26 * __bss_start__
mbed_official 623:db79ecd649d0 27 * __bss_end__
mbed_official 623:db79ecd649d0 28 * __end__
mbed_official 623:db79ecd649d0 29 * end
mbed_official 623:db79ecd649d0 30 * __HeapLimit
mbed_official 623:db79ecd649d0 31 * __StackLimit
mbed_official 623:db79ecd649d0 32 * __StackTop
mbed_official 623:db79ecd649d0 33 * __stack
mbed_official 623:db79ecd649d0 34 * _estack
mbed_official 623:db79ecd649d0 35 */
mbed_official 623:db79ecd649d0 36 ENTRY(Reset_Handler)
mbed_official 623:db79ecd649d0 37
mbed_official 623:db79ecd649d0 38 SECTIONS
mbed_official 623:db79ecd649d0 39 {
mbed_official 623:db79ecd649d0 40 .text :
mbed_official 623:db79ecd649d0 41 {
mbed_official 623:db79ecd649d0 42 KEEP(*(.isr_vector))
mbed_official 623:db79ecd649d0 43 *(.text*)
mbed_official 623:db79ecd649d0 44 KEEP(*(.init))
mbed_official 623:db79ecd649d0 45 KEEP(*(.fini))
mbed_official 623:db79ecd649d0 46
mbed_official 623:db79ecd649d0 47 /* .ctors */
mbed_official 623:db79ecd649d0 48 *crtbegin.o(.ctors)
mbed_official 623:db79ecd649d0 49 *crtbegin?.o(.ctors)
mbed_official 623:db79ecd649d0 50 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
mbed_official 623:db79ecd649d0 51 *(SORT(.ctors.*))
mbed_official 623:db79ecd649d0 52 *(.ctors)
mbed_official 623:db79ecd649d0 53
mbed_official 623:db79ecd649d0 54 /* .dtors */
mbed_official 623:db79ecd649d0 55 *crtbegin.o(.dtors)
mbed_official 623:db79ecd649d0 56 *crtbegin?.o(.dtors)
mbed_official 623:db79ecd649d0 57 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
mbed_official 623:db79ecd649d0 58 *(SORT(.dtors.*))
mbed_official 623:db79ecd649d0 59 *(.dtors)
mbed_official 623:db79ecd649d0 60
mbed_official 623:db79ecd649d0 61 *(.rodata*)
mbed_official 623:db79ecd649d0 62
mbed_official 623:db79ecd649d0 63 KEEP(*(.eh_frame*))
mbed_official 623:db79ecd649d0 64 } > FLASH
mbed_official 623:db79ecd649d0 65
mbed_official 623:db79ecd649d0 66 .ARM.extab :
mbed_official 623:db79ecd649d0 67 {
mbed_official 623:db79ecd649d0 68 *(.ARM.extab* .gnu.linkonce.armextab.*)
mbed_official 623:db79ecd649d0 69 } > FLASH
mbed_official 623:db79ecd649d0 70
mbed_official 623:db79ecd649d0 71 __exidx_start = .;
mbed_official 623:db79ecd649d0 72 .ARM.exidx :
mbed_official 623:db79ecd649d0 73 {
mbed_official 623:db79ecd649d0 74 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
mbed_official 623:db79ecd649d0 75 } > FLASH
mbed_official 623:db79ecd649d0 76 __exidx_end = .;
mbed_official 623:db79ecd649d0 77
mbed_official 623:db79ecd649d0 78 __etext = .;
mbed_official 623:db79ecd649d0 79 _sidata = .;
mbed_official 623:db79ecd649d0 80
mbed_official 623:db79ecd649d0 81 .data : AT (__etext)
mbed_official 623:db79ecd649d0 82 {
mbed_official 623:db79ecd649d0 83 __data_start__ = .;
mbed_official 623:db79ecd649d0 84 _sdata = .;
mbed_official 623:db79ecd649d0 85 *(vtable)
mbed_official 623:db79ecd649d0 86 *(.data*)
mbed_official 623:db79ecd649d0 87
mbed_official 623:db79ecd649d0 88 . = ALIGN(4);
mbed_official 623:db79ecd649d0 89 /* preinit data */
mbed_official 623:db79ecd649d0 90 PROVIDE_HIDDEN (__preinit_array_start = .);
mbed_official 623:db79ecd649d0 91 KEEP(*(.preinit_array))
mbed_official 623:db79ecd649d0 92 PROVIDE_HIDDEN (__preinit_array_end = .);
mbed_official 623:db79ecd649d0 93
mbed_official 623:db79ecd649d0 94 . = ALIGN(4);
mbed_official 623:db79ecd649d0 95 /* init data */
mbed_official 623:db79ecd649d0 96 PROVIDE_HIDDEN (__init_array_start = .);
mbed_official 623:db79ecd649d0 97 KEEP(*(SORT(.init_array.*)))
mbed_official 623:db79ecd649d0 98 KEEP(*(.init_array))
mbed_official 623:db79ecd649d0 99 PROVIDE_HIDDEN (__init_array_end = .);
mbed_official 623:db79ecd649d0 100
mbed_official 623:db79ecd649d0 101
mbed_official 623:db79ecd649d0 102 . = ALIGN(4);
mbed_official 623:db79ecd649d0 103 /* finit data */
mbed_official 623:db79ecd649d0 104 PROVIDE_HIDDEN (__fini_array_start = .);
mbed_official 623:db79ecd649d0 105 KEEP(*(SORT(.fini_array.*)))
mbed_official 623:db79ecd649d0 106 KEEP(*(.fini_array))
mbed_official 623:db79ecd649d0 107 PROVIDE_HIDDEN (__fini_array_end = .);
mbed_official 623:db79ecd649d0 108
mbed_official 623:db79ecd649d0 109 KEEP(*(.jcr*))
mbed_official 623:db79ecd649d0 110 . = ALIGN(4);
mbed_official 623:db79ecd649d0 111 /* All data end */
mbed_official 623:db79ecd649d0 112 __data_end__ = .;
mbed_official 623:db79ecd649d0 113 _edata = .;
mbed_official 623:db79ecd649d0 114
mbed_official 630:1806c2edb763 115 } > SRAM2
mbed_official 623:db79ecd649d0 116
mbed_official 623:db79ecd649d0 117 .bss :
mbed_official 623:db79ecd649d0 118 {
mbed_official 623:db79ecd649d0 119 . = ALIGN(4);
mbed_official 623:db79ecd649d0 120 __bss_start__ = .;
mbed_official 623:db79ecd649d0 121 _sbss = .;
mbed_official 623:db79ecd649d0 122 *(.bss*)
mbed_official 623:db79ecd649d0 123 *(COMMON)
mbed_official 623:db79ecd649d0 124 . = ALIGN(4);
mbed_official 623:db79ecd649d0 125 __bss_end__ = .;
mbed_official 623:db79ecd649d0 126 _ebss = .;
mbed_official 630:1806c2edb763 127 } > SRAM2
mbed_official 623:db79ecd649d0 128
mbed_official 623:db79ecd649d0 129 .heap (COPY):
mbed_official 623:db79ecd649d0 130 {
mbed_official 623:db79ecd649d0 131 __end__ = .;
mbed_official 623:db79ecd649d0 132 end = __end__;
mbed_official 623:db79ecd649d0 133 *(.heap*)
mbed_official 623:db79ecd649d0 134 __HeapLimit = .;
mbed_official 630:1806c2edb763 135 } > SRAM2
mbed_official 623:db79ecd649d0 136
mbed_official 623:db79ecd649d0 137 /* .stack_dummy section doesn't contains any symbols. It is only
mbed_official 623:db79ecd649d0 138 * used for linker to calculate size of stack sections, and assign
mbed_official 623:db79ecd649d0 139 * values to stack symbols later */
mbed_official 623:db79ecd649d0 140 .stack_dummy (COPY):
mbed_official 623:db79ecd649d0 141 {
mbed_official 623:db79ecd649d0 142 *(.stack*)
mbed_official 630:1806c2edb763 143 } > SRAM2
mbed_official 623:db79ecd649d0 144
mbed_official 623:db79ecd649d0 145 /* Set stack top to end of RAM, and stack limit move down by
mbed_official 623:db79ecd649d0 146 * size of stack_dummy section */
mbed_official 630:1806c2edb763 147 __StackTop = ORIGIN(SRAM2) + LENGTH(SRAM2);
mbed_official 623:db79ecd649d0 148 _estack = __StackTop;
mbed_official 623:db79ecd649d0 149 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
mbed_official 623:db79ecd649d0 150 PROVIDE(__stack = __StackTop);
mbed_official 623:db79ecd649d0 151
mbed_official 623:db79ecd649d0 152 /* Check if data + heap + stack exceeds RAM limit */
mbed_official 623:db79ecd649d0 153 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
mbed_official 623:db79ecd649d0 154 }