diff --git a/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/NRF51822.ld b/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/NRF51822.ld new file mode 100644 index 0000000000..9b29c54dba --- /dev/null +++ b/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/NRF51822.ld @@ -0,0 +1,13 @@ +/* Linker script to configure memory regions. */ + +SEARCH_DIR(.) +GROUP(-lgcc -lc -lnosys) + +MEMORY +{ + FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x40000 + RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000 +} + + +INCLUDE "gcc_nrf51_common.ld" diff --git a/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/gcc_nrf51_common.ld b/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/gcc_nrf51_common.ld new file mode 100644 index 0000000000..471dcc851b --- /dev/null +++ b/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/gcc_nrf51_common.ld @@ -0,0 +1,161 @@ +/* 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") +} +