use atmel studio's startup and linker script
This commit is contained in:
Joey Castillo
@@ -1,82 +1,145 @@
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/*
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* Copyright (c) 2014-2016, Alex Taradov <alex@taradov.com>
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* All rights reserved.
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/**
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* \file
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* \brief Linker script for running in internal FLASH on the SAML22J18A
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* Copyright (c) 2018 Microchip Technology Inc.
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*
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* \asf_license_start
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*
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* \page License
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the Licence at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* \asf_license_stop
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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SEARCH_DIR(.)
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/* Memory Spaces Definitions */
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MEMORY
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{
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flash (rx) : ORIGIN = 0x00000000+0x2000, LENGTH = 0x00040000-0x2000 /* 256k */
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x8000 /* 32k */
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rom (rx) : ORIGIN = 0x2000, LENGTH = 0x00040000-0x2000
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
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}
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__top_flash = ORIGIN(flash) + LENGTH(flash);
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__top_ram = ORIGIN(ram) + LENGTH(ram);
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/* The stack size used by the application. NOTE: you need to adjust according to your application. */
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STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
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ENTRY(irq_handler_reset)
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ENTRY(Reset_Handler)
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/* Section Definitions */
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SECTIONS
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{
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.text : ALIGN(4)
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{
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FILL(0xff)
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KEEP(*(.vectors))
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*(.text*)
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*(.rodata)
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*(.rodata.*)
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.text :
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{
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. = ALIGN(4);
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_sfixed = .;
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KEEP(*(.vectors .vectors.*))
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*(.text .text.* .gnu.linkonce.t.*)
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*(.glue_7t) *(.glue_7)
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*(.rodata .rodata* .gnu.linkonce.r.*)
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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/* Support C constructors, and C destructors in both user code
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and the C library. This also provides support for C++ code. */
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. = ALIGN(4);
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KEEP(*(.init))
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. = ALIGN(4);
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__preinit_array_start = .;
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KEEP (*(.preinit_array))
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__preinit_array_end = .;
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. = ALIGN(4);
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__init_array_start = .;
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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__init_array_end = .;
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. = ALIGN(4);
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KEEP (*crtbegin.o(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*crtend.o(.ctors))
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. = ALIGN(4);
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KEEP(*(.fini))
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. = ALIGN(4);
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__fini_array_start = .;
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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__fini_array_end = .;
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*crtend.o(.dtors))
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. = ALIGN(4);
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_efixed = .; /* End of text section */
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} > rom
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/* .ARM.exidx is sorted, so has to go in its own output section. */
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PROVIDE_HIDDEN (__exidx_start = .);
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.ARM.exidx :
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{
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*(.ARM.exidx* .gnu.linkonce.armexidx.*)
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} > rom
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PROVIDE_HIDDEN (__exidx_end = .);
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. = ALIGN(4);
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} > flash
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_etext = .;
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. = ALIGN(4);
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_etext = .;
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.relocate : AT (_etext)
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{
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. = ALIGN(4);
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_srelocate = .;
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*(.ramfunc .ramfunc.*);
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*(.data .data.*);
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. = ALIGN(4);
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_erelocate = .;
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} > ram
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.uninit_RESERVED : ALIGN(4)
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{
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KEEP(*(.bss.$RESERVED*))
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} > ram
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/* .bss section which is used for uninitialized data */
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.bss (NOLOAD) :
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{
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. = ALIGN(4);
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_sbss = . ;
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_szero = .;
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*(.bss .bss.*)
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*(COMMON)
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. = ALIGN(4);
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_ebss = . ;
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_ezero = .;
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} > ram
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/* stack section */
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.stack (NOLOAD):
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{
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. = ALIGN(8);
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_sstack = .;
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. = . + STACK_SIZE;
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. = ALIGN(8);
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_estack = .;
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} > ram
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.data : ALIGN(4)
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{
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FILL(0xff)
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_data = .;
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*(.ramfunc .ramfunc.*);
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*(vtable)
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*(.data*)
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. = ALIGN(4);
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_edata = .;
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} > ram AT > flash
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.bss : ALIGN(4)
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{
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_bss = .;
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*(.bss*)
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*(COMMON)
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. = ALIGN(4);
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_ebss = .;
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PROVIDE(_end = .);
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} > ram
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PROVIDE(_stack_top = __top_ram - 0);
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_end = . ;
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}
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