4ec7af779d
When I try to set priorities in certain programs, such as init_priority(HIGH_PRIORITY), I've noticed that during linking, there's no guarantee that the programs will be compiled in the sequence I've specified based on priority. This has led to some runtime errors in my program. I realized that in the ld file, when initializing dynamic arrays, there's no assurance of initializing init_array.* before init_array. This has resulted in runtime errors in the program. Consequently, I've rearranged the init_array.* in the ld file of NuttX to be placed before init_array and added a SORT operation to init_array.* to ensure accurate initialization based on priorities during linking.
155 lines
4.3 KiB
Plaintext
155 lines
4.3 KiB
Plaintext
/****************************************************************************
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* kernel-space.ld
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* 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 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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****************************************************************************/
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/* NOTE: This depends on the memory.ld script having been included prior to
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* this script.
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*/
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OUTPUT_ARCH(arm)
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EXTERN(_vectors)
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EXTERN(boot_header)
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ENTRY(_stext)
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/*
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* Ensure that abort() is present in the final object. The exception handling
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* code pulled in by libgcc.a requires it (and that code cannot be easily avoided).
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*/
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EXTERN(abort)
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EXTERN(_bootdelay_signature)
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/*
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* TODO: Fill in the signature location into TOC from user-space elf
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EXTERN(_main_toc)
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*/
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SECTIONS
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{
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.boot_header :
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{
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KEEP(*(.boot_header))
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} > BOOT_HEADER
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.text : {
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_stext = ABSOLUTE(.);
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*(.vectors)
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. = ALIGN(32);
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/*
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This signature provides the bootloader with a way to delay booting
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*/
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_bootdelay_signature = ABSOLUTE(.);
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FILL(0xffecc2925d7d05c5)
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. += 8;
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/*
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*(.main_toc)
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*/
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*(.text .text.*)
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*(.fixup)
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*(.gnu.warning)
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*(.rodata .rodata.*)
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*(.gnu.linkonce.t.*)
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*(.glue_7)
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*(.glue_7t)
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*(.got)
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*(.gcc_except_table)
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*(.gnu.linkonce.r.*)
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_etext = ABSOLUTE(.);
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} > kflash
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/*
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* Init functions (static constructors and the like)
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*/
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.init_section : {
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_sinit = ABSOLUTE(.);
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KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
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KEEP(*(.init_array .ctors))
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_einit = ABSOLUTE(.);
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} > kflash
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.ARM.extab : {
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*(.ARM.extab*)
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} > kflash
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__exidx_start = ABSOLUTE(.);
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.ARM.exidx : {
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*(.ARM.exidx*)
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} > kflash
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__exidx_end = ABSOLUTE(.);
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_eronly = ABSOLUTE(.);
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.data : {
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_sdata = ABSOLUTE(.);
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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CONSTRUCTORS
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_edata = ABSOLUTE(.);
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} > ksram AT > kflash
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.bss : {
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_sbss = ABSOLUTE(.);
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*(.bss .bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(4);
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_ebss = ABSOLUTE(.);
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} > ksram
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/* Stabs debugging sections */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_info 0 : { *(.debug_info) }
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.debug_line 0 : { *(.debug_line) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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.debug_aranges 0 : { *(.debug_aranges) }
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.ramfunc : {
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_sramfuncs = .;
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*(.ramfunc .ramfunc.*)
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. = ALIGN(4);
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_eramfuncs = .;
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} > ksram AT > kflash
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_framfuncs = LOADADDR(.ramfunc);
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}
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