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.
161 lines
5.3 KiB
Plaintext
161 lines
5.3 KiB
Plaintext
/****************************************************************************
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* boards/arm/sama5/sama5d3x-ek/scripts/pg-sram.ld
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License 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. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* The SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
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* The .text virtual address space begins at the same location as the physical
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* address space: 0x0030:0000. The virtual space is broken up into three
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* regions:
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*
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* PHYSICAL VIRTUAL
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* NAME DESCRIPTION SIZE START SIZE START
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* -------- -------------------------- ----- ----------- ------- -----------
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* locked Pages locked in memory. 40KB 0x0030:0000 40KB 0x0030:0000
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* paged Pages in nonvolatile store. 48KB 0x0030:a000 48KB 0x0030:a000
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* data .data/.bss/heap. 24KB 0x0031:6000 24KB 0x0031:6000
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* Reserved for page table 16KB 0x0031:c000 16KB 0x0031:c000
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* -------- -------------------------- ----- ----------- ------- -----------
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* 128KB 0x0032 0000 128KB 0x0032 0000
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*
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* These region sizes must match the size in pages specified for each region
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* in the NuttX configuration file: CONFIG_PAGING_NLOCKED, CONFIG_PAGING_NVPAGED,
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* and CONFIG_PAGING_NDATA.
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*
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* NOTE 1: The locked region is should be big here so that you can enable lots of
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* debug output without overflowing the locked region. 32KB would probably be
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* plenty if this were a real, optimized application.
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*
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* NOTE 2: Different compilers will compile the code to different sizes. If you
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* get a link time error saying that the locked region is full, you may have to
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* re-organize this memory layout (here and in defconfig) to make the locked
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* region even bigger.
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*
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* NOTE 3: Vectors in low memory are assumed and 16KB of ISRAM is reserved at
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* the high end of ISRAM for the page table (?).
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*/
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MEMORY
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{
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locked (rx) : ORIGIN = 0x00300000, LENGTH = 40K
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paged (rx) : ORIGIN = 0x0030a000, LENGTH = 48K
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data (rw) : ORIGIN = 0x00316000, LENGTH = 24K
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}
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ENTRY(entry)
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ENTRY(_stext)
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SECTIONS
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{
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.locked :
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{
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_slocked = ABSOLUTE(.);
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*(.vectors)
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up_head.o locked.r (.text .text.*)
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up_head.o locked.r (.fixup)
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up_head.o locked.r (.gnu.warning)
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up_head.o locked.r (.rodata .rodata.*)
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up_head.o locked.r (.gnu.linkonce.t.*)
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up_head.o locked.r (.glue_7)
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up_head.o locked.r (.glue_7t)
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up_head.o locked.r (.got)
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up_head.o locked.r (.gcc_except_table)
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up_head.o locked.r (.gnu.linkonce.r.*)
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_elocked = ABSOLUTE(.);
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} >locked
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.init_section :
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{
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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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} > locked
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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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} > isram
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PROVIDE_HIDDEN (__exidx_end = .);
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.paged :
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{
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_spaged = ABSOLUTE(.);
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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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*(.ARM.extab*)
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*(.gnu.linkonce.armextab.*)
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_epaged = ABSOLUTE(.);
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} > paged
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.data :
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{
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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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. = ALIGN(4);
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_edata = ABSOLUTE(.);
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} > data AT > locked
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.bss :
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{
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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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} > data
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/* Uninitialized data */
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.noinit :
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{
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_snoinit = ABSOLUTE(.);
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*(.noinit*)
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_enoinit = ABSOLUTE(.);
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} > data
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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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}
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