/* * Taken from nrf51822/Source/templates/gcc/gcc_nrf51_common.ld * * Linker script for Nordic Semiconductor nRF5 devices * * Version: Sourcery G++ 4.5-1 * Support: https://support.codesourcery.com/GNUToolchain/ * * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc. * * The authors hereby grant permission to use, copy, modify, distribute, * and license this software and its documentation for any purpose, provided * that existing copyright notices are retained in all copies and that this * notice is included verbatim in any distributions. No written agreement, * license, or royalty fee is required for any of the authorized uses. * Modifications to this software may be copyrighted by their authors * and need not follow the licensing terms described here, provided that * the new terms are clearly indicated on the first page of each file where * they apply. */ OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") /* Linker script to place sections and symbol values. Should be used together * with other linker script that defines memory regions FLASH and RAM. * It references following symbols, which must be defined in code: * Reset_Handler : Entry of reset handler * * It defines following symbols, which code can use without definition: * __exidx_start * __exidx_end * __etext * __data_start__ * __preinit_array_start * __preinit_array_end * __init_array_start * __init_array_end * __fini_array_start * __fini_array_end * __data_end__ * __bss_start__ * __bss_end__ * __end__ * end * __HeapLimit * __StackLimit * __StackTop * __stack */ ENTRY(Reset_Handler) SECTIONS { .text : { KEEP(*(.Vectors)) *(.text*) *(.init) *(.fini) /* .ctors */ *crtbegin.o(.ctors) *crtbegin?.o(.ctors) *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors) *(SORT(.ctors.*)) *(.ctors) /* .dtors */ *crtbegin.o(.dtors) *crtbegin?.o(.dtors) *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors) *(SORT(.dtors.*)) *(.dtors) *(.rodata*) *(.eh_frame*) } > FLASH .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } > FLASH __exidx_start = .; .ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } > FLASH __exidx_end = .; __etext = .; .data : AT (__etext) { __data_start__ = .; *(vtable) *(.data*) . = ALIGN(4); /* preinit data */ PROVIDE_HIDDEN (__preinit_array_start = .); *(.preinit_array) PROVIDE_HIDDEN (__preinit_array_end = .); . = ALIGN(4); /* init data */ PROVIDE_HIDDEN (__init_array_start = .); *(SORT(.init_array.*)) *(.init_array) PROVIDE_HIDDEN (__init_array_end = .); . = ALIGN(4); /* finit data */ PROVIDE_HIDDEN (__fini_array_start = .); *(SORT(.fini_array.*)) *(.fini_array) PROVIDE_HIDDEN (__fini_array_end = .); *(.jcr) . = ALIGN(4); /* All data end */ __data_end__ = .; } > RAM .bss : { . = ALIGN(4); __bss_start__ = .; *(.bss*) *(COMMON) . = ALIGN(4); __bss_end__ = .; } > RAM .heap (COPY): { __end__ = .; end = __end__; *(.heap*) __HeapLimit = .; } > RAM /* .stack_dummy section doesn't contains any symbols. It is only * used for linker to calculate size of stack sections, and assign * values to stack symbols later */ .stack_dummy (COPY): { *(.stack*) } > RAM /* Set stack top to end of RAM, and stack limit move down by * size of stack_dummy section */ __StackTop = ORIGIN(RAM) + LENGTH(RAM); __StackLimit = __StackTop - SIZEOF(.stack_dummy); PROVIDE(__stack = __StackTop); /* Check if data + heap + stack exceeds RAM limit */ ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack") }