From 2784430ecd233cfb5544ce67fc85c1b4042df152 Mon Sep 17 00:00:00 2001 From: Juan Carlos Ferrer Date: Sat, 31 May 2014 16:56:34 -0500 Subject: [PATCH] Merges linker scripts into a single file --- .../TOOLCHAIN_GCC_ARM/NRF51822.ld | 147 +++++++++++++++- .../TOOLCHAIN_GCC_ARM/gcc_nrf51_common.ld | 161 ------------------ 2 files changed, 143 insertions(+), 165 deletions(-) delete mode 100644 libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/gcc_nrf51_common.ld 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 index 9b29c54dba..c6e271f43d 100644 --- 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 @@ -1,13 +1,152 @@ /* 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 } +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") +} -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 deleted file mode 100644 index 471dcc851b..0000000000 --- a/libraries/mbed/targets/cmsis/TARGET_NORDIC/TARGET_NRF51822/TOOLCHAIN_GCC_ARM/gcc_nrf51_common.ld +++ /dev/null @@ -1,161 +0,0 @@ -/* 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") -} -