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FeatherM4CAN to TOOL1RR (linker debug)

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/**

* \file

* \brief Linker script for running in internal FLASH on the SAME51N19A

* \asf_license_start

* \page License

* SPDX-License-Identifier: Apache-2.0

* Licensed under the Apache License, Version 2.0 (the "License"); you may

* not use this file except in compliance with the License.

* You may obtain a copy of the Licence at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an AS IS BASIS, WITHOUT

* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

* \asf_license_stop

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")

OUTPUT_ARCH(arm)

SEARCH_DIR(.)

/* Memory Spaces Definitions */

MEMORY

{

rom (rx) : ORIGIN = 0x00000000, LENGTH = 0x00080000

ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000

bkupram (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000

qspi (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000

}

/* Section Definitions */

SECTIONS

{

.text :

{

. = ALIGN(4);

_sfixed = .;

KEEP(*(.vectors .vectors.*))

*(.text .text.* .gnu.linkonce.t.*)

*(.glue_7t) *(.glue_7)

*(.rodata .rodata* .gnu.linkonce.r.*)

*(.ARM.extab* .gnu.linkonce.armextab.*)

/* Support C constructors, and C destructors in both user code

and the C library. This also provides support for C++ code. */

. = ALIGN(4);

KEEP(*(.init))

. = ALIGN(4);

__preinit_array_start = .;

KEEP (*(.preinit_array))

__preinit_array_end = .;

. = ALIGN(4);

__init_array_start = .;

KEEP (*(SORT(.init_array.*)))

KEEP (*(.init_array))

__init_array_end = .;

. = ALIGN(4);

KEEP (*crtbegin.o(.ctors))

KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))

KEEP (*(SORT(.ctors.*)))

KEEP (*crtend.o(.ctors))

. = ALIGN(4);

KEEP(*(.fini))

. = ALIGN(4);

__fini_array_start = .;

KEEP (*(.fini_array))

KEEP (*(SORT(.fini_array.*)))

__fini_array_end = .;

KEEP (*crtbegin.o(.dtors))

KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))

KEEP (*(SORT(.dtors.*)))

KEEP (*crtend.o(.dtors))

. = ALIGN(4);

_efixed = .; /* End of text section */

} > rom

/* .ARM.exidx is sorted, so has to go in its own output section. */

PROVIDE_HIDDEN (__exidx_start = .);

.ARM.exidx :

{

*(.ARM.exidx* .gnu.linkonce.armexidx.*)

} > rom

PROVIDE_HIDDEN (__exidx_end = .);

. = ALIGN(4);

_etext = .;

/* CAN message buffers must be in the first 64K of RAM */

.canMessage (NOLOAD) :

{

. = ALIGN(4);

_sCanMessage = . ;

*(.CanMessage .CanMessage.*)

. = ALIGN(4);

_eCanMessage = . ;

} > ram

/* DMA programming and write-back memory, here because they are volatile so we must't CRC them when we check for data corruption */

.dmaBuffers (NOLOAD) :

{

. = ALIGN(16);

_sDmaBuffers = . ;

*(.DmaBuffers .DmaBuffers.*)

. = ALIGN(4);

_eDmaBuffers = . ;

} > ram

.relocate : AT (_etext)

{

. = ALIGN(4);

_srelocate = .;

*(.ramfunc .ramfunc.*);

*(.data .data.*);

. = ALIGN(4);

_erelocate = .;

} > ram

_firmware_crc = _etext + (_erelocate - _srelocate); /* We append the CRC32 to the binary file. This is its offset in memory. */

.bkupram (NOLOAD):

{

. = ALIGN(8);

_sbkupram = .;

*(.bkupram .bkupram.*);

. = ALIGN(8);

_ebkupram = .;

} > bkupram

.qspi (NOLOAD):

{

. = ALIGN(8);

_sqspi = .;

*(.qspi .qspi.*);

. = ALIGN(8);

_eqspi = .;

} > qspi

/* .bss section which is used for uninitialized data */

.bss (NOLOAD) :

{

. = ALIGN(4);

_sbss = . ;

_szero = .;

*(.bss .bss.*)

*(COMMON)

. = ALIGN(4);

_ebss = . ;

_ezero = .;

} > ram

. = ALIGN(4);

_end = . ;

/* .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 :

{

*(.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(_sstack = __StackLimit);

PROVIDE(_estack = __StackTop);

}

Saved diffs

Original text

Open file

/**
 * \file
 *
 * \brief Linker script for running in internal FLASH on the SAME51N19A
 *
 * Copyright (c) 2017 Microchip Technology Inc.
 *
 * \asf_license_start
 *
 * \page License
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the Licence at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * \asf_license_stop
 *
 */

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
SEARCH_DIR(.)

/* Memory Spaces Definitions */
MEMORY
{
  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
  ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
  bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
  qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000
}

/* Section Definitions */
SECTIONS
{
    .text :
    {
        . = ALIGN(4);
        _sfixed = .;
        KEEP(*(.vectors .vectors.*))
        *(.text .text.* .gnu.linkonce.t.*)
        *(.glue_7t) *(.glue_7)
        *(.rodata .rodata* .gnu.linkonce.r.*)
        *(.ARM.extab* .gnu.linkonce.armextab.*)

/* Support C constructors, and C destructors in both user code
           and the C library. This also provides support for C++ code. */
        . = ALIGN(4);
        KEEP(*(.init))
        . = ALIGN(4);
        __preinit_array_start = .;
        KEEP (*(.preinit_array))
        __preinit_array_end = .;

. = ALIGN(4);
        __init_array_start = .;
        KEEP (*(SORT(.init_array.*)))
        KEEP (*(.init_array))
        __init_array_end = .;

. = ALIGN(4);
        KEEP (*crtbegin.o(.ctors))
        KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
        KEEP (*(SORT(.ctors.*)))
        KEEP (*crtend.o(.ctors))

. = ALIGN(4);
        KEEP(*(.fini))

. = ALIGN(4);
        __fini_array_start = .;
        KEEP (*(.fini_array))
        KEEP (*(SORT(.fini_array.*)))
        __fini_array_end = .;

KEEP (*crtbegin.o(.dtors))
        KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
        KEEP (*(SORT(.dtors.*)))
        KEEP (*crtend.o(.dtors))

. = ALIGN(4);
        _efixed = .;            /* End of text section */
    } > rom

/* .ARM.exidx is sorted, so has to go in its own output section.  */
    PROVIDE_HIDDEN (__exidx_start = .);
    .ARM.exidx :
    {
      *(.ARM.exidx* .gnu.linkonce.armexidx.*)
    } > rom
    PROVIDE_HIDDEN (__exidx_end = .);

. = ALIGN(4);
    _etext = .;

/* CAN message buffers must be in the first 64K of RAM */
    .canMessage (NOLOAD) :
    {
        . = ALIGN(4);
        _sCanMessage = . ;
		*(.CanMessage .CanMessage.*)
        . = ALIGN(4);
        _eCanMessage = . ;
    } > ram

/* DMA programming and write-back memory, here because they are volatile so we must't CRC them when we check for data corruption */
    .dmaBuffers (NOLOAD) :
    {
    	. = ALIGN(16);
    	_sDmaBuffers = . ;
    	*(.DmaBuffers .DmaBuffers.*)
    	. = ALIGN(4);
    	_eDmaBuffers = . ;
    } > ram

.relocate : AT (_etext)
    {
        . = ALIGN(4);
        _srelocate = .;
        *(.ramfunc .ramfunc.*);
        *(.data .data.*);
        . = ALIGN(4);
        _erelocate = .;
    } > ram

_firmware_crc = _etext + (_erelocate - _srelocate);		/* We append the CRC32 to the binary file. This is its offset in memory. */

.bkupram (NOLOAD):
    {
        . = ALIGN(8);
        _sbkupram = .;
        *(.bkupram .bkupram.*);
        . = ALIGN(8);
        _ebkupram = .;
    } > bkupram

.qspi (NOLOAD):
    {
        . = ALIGN(8);
        _sqspi = .;
        *(.qspi .qspi.*);
        . = ALIGN(8);
        _eqspi = .;
    } > qspi

/* .bss section which is used for uninitialized data */
    .bss (NOLOAD) :
    {
        . = ALIGN(4);
        _sbss = . ;
        _szero = .;
        *(.bss .bss.*)
        *(COMMON)
        . = ALIGN(4);
        _ebss = . ;
        _ezero = .;
    } > ram

. = ALIGN(4);
    _end = . ;

/* .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 :
    {
        *(.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(_sstack = __StackLimit);
    PROVIDE(_estack = __StackTop);
}

Changed text

Open file

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
SEARCH_DIR(.)

. = ALIGN(4);
        __init_array_start = .;
        KEEP (*(SORT(.init_array.*)))
        KEEP (*(.init_array))
        __init_array_end = .;

. = ALIGN(4);
        KEEP (*crtbegin.o(.ctors))
        KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
        KEEP (*(SORT(.ctors.*)))
        KEEP (*crtend.o(.ctors))

. = ALIGN(4);
        KEEP(*(.fini))

. = ALIGN(4);
        __fini_array_start = .;
        KEEP (*(.fini_array))
        KEEP (*(SORT(.fini_array.*)))
        __fini_array_end = .;

KEEP (*crtbegin.o(.dtors))
        KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
        KEEP (*(SORT(.dtors.*)))
        KEEP (*crtend.o(.dtors))

. = ALIGN(4);
        _efixed = .;            /* End of text section */
    } > rom

. = ALIGN(4);
    _etext = .;

.relocate : AT (_etext)
    {
        . = ALIGN(4);
        _srelocate = .;
        *(.ramfunc .ramfunc.*);
        *(.data .data.*);
        . = ALIGN(4);
        _erelocate = .;
    } > ram

_firmware_crc = _etext + (_erelocate - _srelocate);		/* We append the CRC32 to the binary file. This is its offset in memory. */

.bkupram (NOLOAD):
    {
        . = ALIGN(8);
        _sbkupram = .;
        *(.bkupram .bkupram.*);
        . = ALIGN(8);
        _ebkupram = .;
    } > bkupram

.qspi (NOLOAD):
    {
        . = ALIGN(8);
        _sqspi = .;
        *(.qspi .qspi.*);
        . = ALIGN(8);
        _eqspi = .;
    } > qspi

. = ALIGN(4);
    _end = . ;