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TARGET_NUCLEO_F446RE/TOOLCHAIN_GCC_ARM/STM32F446XE.ld@106:ba1f97679dad, 2015-09-02 (annotated)

Committer:
Kojto
Date:
Wed Sep 02 14:17:43 2015 +0100
Revision:
106:ba1f97679dad
Release 106  of the mbed library



Changes:

- new platform - Nucleo F446RE

- STM32F4 Cube driver update v2.3.2

- ST cmsis driver v2.3.2

- nordic bugfix gcc linker start address

- lpc11u68 - bugfix for serial ports

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 106:ba1f97679dad 1 /* Linker script to configure memory regions. */
Kojto 106:ba1f97679dad 2 MEMORY
Kojto 106:ba1f97679dad 3 {
Kojto 106:ba1f97679dad 4 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
Kojto 106:ba1f97679dad 5 RAM (rwx) : ORIGIN = 0x200001C4, LENGTH = 128k - 0x1C4
Kojto 106:ba1f97679dad 6 }
Kojto 106:ba1f97679dad 7
Kojto 106:ba1f97679dad 8 /* Linker script to place sections and symbol values. Should be used together
Kojto 106:ba1f97679dad 9 * with other linker script that defines memory regions FLASH and RAM.
Kojto 106:ba1f97679dad 10 * It references following symbols, which must be defined in code:
Kojto 106:ba1f97679dad 11 * Reset_Handler : Entry of reset handler
Kojto 106:ba1f97679dad 12 *
Kojto 106:ba1f97679dad 13 * It defines following symbols, which code can use without definition:
Kojto 106:ba1f97679dad 14 * __exidx_start
Kojto 106:ba1f97679dad 15 * __exidx_end
Kojto 106:ba1f97679dad 16 * __etext
Kojto 106:ba1f97679dad 17 * __data_start__
Kojto 106:ba1f97679dad 18 * __preinit_array_start
Kojto 106:ba1f97679dad 19 * __preinit_array_end
Kojto 106:ba1f97679dad 20 * __init_array_start
Kojto 106:ba1f97679dad 21 * __init_array_end
Kojto 106:ba1f97679dad 22 * __fini_array_start
Kojto 106:ba1f97679dad 23 * __fini_array_end
Kojto 106:ba1f97679dad 24 * __data_end__
Kojto 106:ba1f97679dad 25 * __bss_start__
Kojto 106:ba1f97679dad 26 * __bss_end__
Kojto 106:ba1f97679dad 27 * __end__
Kojto 106:ba1f97679dad 28 * end
Kojto 106:ba1f97679dad 29 * __HeapLimit
Kojto 106:ba1f97679dad 30 * __StackLimit
Kojto 106:ba1f97679dad 31 * __StackTop
Kojto 106:ba1f97679dad 32 * __stack
Kojto 106:ba1f97679dad 33 * _estack
Kojto 106:ba1f97679dad 34 */
Kojto 106:ba1f97679dad 35 ENTRY(Reset_Handler)
Kojto 106:ba1f97679dad 36
Kojto 106:ba1f97679dad 37 SECTIONS
Kojto 106:ba1f97679dad 38 {
Kojto 106:ba1f97679dad 39 .text :
Kojto 106:ba1f97679dad 40 {
Kojto 106:ba1f97679dad 41 KEEP(*(.isr_vector))
Kojto 106:ba1f97679dad 42 *(.text*)
Kojto 106:ba1f97679dad 43 KEEP(*(.init))
Kojto 106:ba1f97679dad 44 KEEP(*(.fini))
Kojto 106:ba1f97679dad 45
Kojto 106:ba1f97679dad 46 /* .ctors */
Kojto 106:ba1f97679dad 47 *crtbegin.o(.ctors)
Kojto 106:ba1f97679dad 48 *crtbegin?.o(.ctors)
Kojto 106:ba1f97679dad 49 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
Kojto 106:ba1f97679dad 50 *(SORT(.ctors.*))
Kojto 106:ba1f97679dad 51 *(.ctors)
Kojto 106:ba1f97679dad 52
Kojto 106:ba1f97679dad 53 /* .dtors */
Kojto 106:ba1f97679dad 54 *crtbegin.o(.dtors)
Kojto 106:ba1f97679dad 55 *crtbegin?.o(.dtors)
Kojto 106:ba1f97679dad 56 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
Kojto 106:ba1f97679dad 57 *(SORT(.dtors.*))
Kojto 106:ba1f97679dad 58 *(.dtors)
Kojto 106:ba1f97679dad 59
Kojto 106:ba1f97679dad 60 *(.rodata*)
Kojto 106:ba1f97679dad 61
Kojto 106:ba1f97679dad 62 KEEP(*(.eh_frame*))
Kojto 106:ba1f97679dad 63 } > FLASH
Kojto 106:ba1f97679dad 64
Kojto 106:ba1f97679dad 65 .ARM.extab :
Kojto 106:ba1f97679dad 66 {
Kojto 106:ba1f97679dad 67 *(.ARM.extab* .gnu.linkonce.armextab.*)
Kojto 106:ba1f97679dad 68 } > FLASH
Kojto 106:ba1f97679dad 69
Kojto 106:ba1f97679dad 70 __exidx_start = .;
Kojto 106:ba1f97679dad 71 .ARM.exidx :
Kojto 106:ba1f97679dad 72 {
Kojto 106:ba1f97679dad 73 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
Kojto 106:ba1f97679dad 74 } > FLASH
Kojto 106:ba1f97679dad 75 __exidx_end = .;
Kojto 106:ba1f97679dad 76
Kojto 106:ba1f97679dad 77 __etext = .;
Kojto 106:ba1f97679dad 78 _sidata = .;
Kojto 106:ba1f97679dad 79
Kojto 106:ba1f97679dad 80 .data : AT (__etext)
Kojto 106:ba1f97679dad 81 {
Kojto 106:ba1f97679dad 82 __data_start__ = .;
Kojto 106:ba1f97679dad 83 _sdata = .;
Kojto 106:ba1f97679dad 84 *(vtable)
Kojto 106:ba1f97679dad 85 *(.data*)
Kojto 106:ba1f97679dad 86
Kojto 106:ba1f97679dad 87 . = ALIGN(4);
Kojto 106:ba1f97679dad 88 /* preinit data */
Kojto 106:ba1f97679dad 89 PROVIDE_HIDDEN (__preinit_array_start = .);
Kojto 106:ba1f97679dad 90 KEEP(*(.preinit_array))
Kojto 106:ba1f97679dad 91 PROVIDE_HIDDEN (__preinit_array_end = .);
Kojto 106:ba1f97679dad 92
Kojto 106:ba1f97679dad 93 . = ALIGN(4);
Kojto 106:ba1f97679dad 94 /* init data */
Kojto 106:ba1f97679dad 95 PROVIDE_HIDDEN (__init_array_start = .);
Kojto 106:ba1f97679dad 96 KEEP(*(SORT(.init_array.*)))
Kojto 106:ba1f97679dad 97 KEEP(*(.init_array))
Kojto 106:ba1f97679dad 98 PROVIDE_HIDDEN (__init_array_end = .);
Kojto 106:ba1f97679dad 99
Kojto 106:ba1f97679dad 100
Kojto 106:ba1f97679dad 101 . = ALIGN(4);
Kojto 106:ba1f97679dad 102 /* finit data */
Kojto 106:ba1f97679dad 103 PROVIDE_HIDDEN (__fini_array_start = .);
Kojto 106:ba1f97679dad 104 KEEP(*(SORT(.fini_array.*)))
Kojto 106:ba1f97679dad 105 KEEP(*(.fini_array))
Kojto 106:ba1f97679dad 106 PROVIDE_HIDDEN (__fini_array_end = .);
Kojto 106:ba1f97679dad 107
Kojto 106:ba1f97679dad 108 KEEP(*(.jcr*))
Kojto 106:ba1f97679dad 109 . = ALIGN(4);
Kojto 106:ba1f97679dad 110 /* All data end */
Kojto 106:ba1f97679dad 111 __data_end__ = .;
Kojto 106:ba1f97679dad 112 _edata = .;
Kojto 106:ba1f97679dad 113
Kojto 106:ba1f97679dad 114 } > RAM
Kojto 106:ba1f97679dad 115
Kojto 106:ba1f97679dad 116 .bss :
Kojto 106:ba1f97679dad 117 {
Kojto 106:ba1f97679dad 118 . = ALIGN(4);
Kojto 106:ba1f97679dad 119 __bss_start__ = .;
Kojto 106:ba1f97679dad 120 _sbss = .;
Kojto 106:ba1f97679dad 121 *(.bss*)
Kojto 106:ba1f97679dad 122 *(COMMON)
Kojto 106:ba1f97679dad 123 . = ALIGN(4);
Kojto 106:ba1f97679dad 124 __bss_end__ = .;
Kojto 106:ba1f97679dad 125 _ebss = .;
Kojto 106:ba1f97679dad 126 } > RAM
Kojto 106:ba1f97679dad 127
Kojto 106:ba1f97679dad 128 .heap (COPY):
Kojto 106:ba1f97679dad 129 {
Kojto 106:ba1f97679dad 130 __end__ = .;
Kojto 106:ba1f97679dad 131 end = __end__;
Kojto 106:ba1f97679dad 132 *(.heap*)
Kojto 106:ba1f97679dad 133 __HeapLimit = .;
Kojto 106:ba1f97679dad 134 } > RAM
Kojto 106:ba1f97679dad 135
Kojto 106:ba1f97679dad 136 /* .stack_dummy section doesn't contains any symbols. It is only
Kojto 106:ba1f97679dad 137 * used for linker to calculate size of stack sections, and assign
Kojto 106:ba1f97679dad 138 * values to stack symbols later */
Kojto 106:ba1f97679dad 139 .stack_dummy (COPY):
Kojto 106:ba1f97679dad 140 {
Kojto 106:ba1f97679dad 141 *(.stack*)
Kojto 106:ba1f97679dad 142 } > RAM
Kojto 106:ba1f97679dad 143
Kojto 106:ba1f97679dad 144 /* Set stack top to end of RAM, and stack limit move down by
Kojto 106:ba1f97679dad 145 * size of stack_dummy section */
Kojto 106:ba1f97679dad 146 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
Kojto 106:ba1f97679dad 147 _estack = __StackTop;
Kojto 106:ba1f97679dad 148 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
Kojto 106:ba1f97679dad 149 PROVIDE(__stack = __StackTop);
Kojto 106:ba1f97679dad 150
Kojto 106:ba1f97679dad 151 /* Check if data + heap + stack exceeds RAM limit */
Kojto 106:ba1f97679dad 152 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
Kojto 106:ba1f97679dad 153 }