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https://github.com/oliverschmidt/contiki.git
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0d260f61a0
Some toolchains, like Sourcery CodeBench Lite 2013.05-23 arm-none-eabi (http://sourcery.mentor.com/public/gnu_toolchain/arm-none-eabi/) automatically force the alignment of an output section LMA to use the maximum alignment of all its input sections. This toolchain uses GNU binutils 2.23, and this automatic behavior is the same as the manual behavior of the ALIGN_WITH_INPUT feature of GNU binutils 2.24+. This behavior is not an issue per se, but it creates a gap between _etext and the LMA of the .data output section if _etext does not have the same alignment, while reset_handler() initialized this section by copying the data from _etext to its VMA, hence an offset in the addresses of loaded data, and missing data. This commit fixes this issue by making reset_handler() directly use the LMA of the .data section using LOADADDR(.data), rather than assuming that _etext is this LMA. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
123 lines
3.6 KiB
Plaintext
123 lines
3.6 KiB
Plaintext
/*
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* Copyright (c) 2013, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, 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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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* cc2538 linker configuration file. This is not the actual file used at link
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* stage. Rather, it is used as input for the auto-generation of the actual
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* ld script, which is called cc2538.ld and will be in the project directory
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*/
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#if (LPM_CONF_MAX_PM==2) && (LPM_CONF_ENABLE != 0)
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#define NRSRAM_START 0x20000000
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#define NRSRAM_LEN 0x00004000
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#define SRAM_START 0x20004000
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#define SRAM_LEN 0x00004000
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#else
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#define SRAM_START 0x20000000
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#define SRAM_LEN 0x00008000
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#endif
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#ifdef FLASH_CONF_ORIGIN
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#define FLASH_ORIGIN FLASH_CONF_ORIGIN
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#else
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#error FLASH_CONF_ORIGIN is not specified. Please define FLASH_CONF_ORIGIN in contiki-conf.h.
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#endif
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#ifdef FLASH_CONF_SIZE
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#define FLASH_SIZE FLASH_CONF_SIZE
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#else
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#error FLASH_CONF_SIZE is not specified. Please define FLASH_CONF_SIZE in contiki-conf.h.
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#endif
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#define FLASH_CCA_LENGTH 44
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#define FLASH_LENGTH (FLASH_SIZE - FLASH_CCA_LENGTH)
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#define FLASH_CCA_ORIGIN (FLASH_ORIGIN + FLASH_LENGTH)
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MEMORY
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{
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FLASH (rx) : ORIGIN = FLASH_ORIGIN, LENGTH = FLASH_LENGTH
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FLASH_CCA (RX) : ORIGIN = FLASH_CCA_ORIGIN, LENGTH = FLASH_CCA_LENGTH
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#if (LPM_CONF_MAX_PM==2) && (LPM_CONF_ENABLE != 0)
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NRSRAM (RWX) : ORIGIN = NRSRAM_START, LENGTH = NRSRAM_LEN
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#endif
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SRAM (RWX) : ORIGIN = SRAM_START, LENGTH = SRAM_LEN
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}
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SECTIONS
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{
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.text :
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{
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_text = .;
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KEEP(*(.vectors))
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*(.text*)
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*(.rodata*)
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_etext = .;
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} > FLASH= 0
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.socdata (NOLOAD) :
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{
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*(.udma_channel_control_table)
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} > SRAM
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.data :
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{
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_data = .;
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*(.data*)
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_edata = .;
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} > SRAM AT > FLASH
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_ldata = LOADADDR(.data);
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.ARM.exidx :
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{
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*(.ARM.exidx*)
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} > FLASH
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.bss :
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{
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_bss = .;
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*(.bss*)
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*(COMMON)
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_ebss = .;
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} > SRAM
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#if (LPM_CONF_MAX_PM==2) && (LPM_CONF_ENABLE != 0)
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.nrdata (NOLOAD) :
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{
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_nrdata = .;
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*(.nrdata*)
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_enrdata = .;
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} > NRSRAM
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#endif
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.flashcca :
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{
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KEEP(*(.flashcca))
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} > FLASH_CCA
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}
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