u-boot/board/atmel/atstk1000/u-boot.lds
Haavard Skinnemoen caf83ea888 avr32: Use the same entry point for reset and exception handling
Since the reset vector is always aligned to a very large boundary, we
can save a couple of KB worth of alignment padding by placing the
exception vectors at the same address.

Deciding which one it is is easy: If we're handling an exception, the
CPU is in Exception mode. If we're starting up after reset, the CPU is
in Supervisor mode. So this adds a very minimal overhead to the reset
path (only executed once) and the exception handling path (normally
never executed at all.)

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-05-27 15:27:30 +02:00

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Text

/* -*- Fundamental -*-
*
* Copyright (C) 2005-2006 Atmel Corporation
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_FORMAT("elf32-avr32", "elf32-avr32", "elf32-avr32")
OUTPUT_ARCH(avr32)
ENTRY(_start)
SECTIONS
{
. = 0;
_text = .;
.text : {
*(.exception.text)
*(.text)
*(.text.*)
}
_etext = .;
.rodata : {
*(.rodata)
*(.rodata.*)
}
. = ALIGN(8);
_data = .;
.data : {
*(.data)
*(.data.*)
}
. = ALIGN(4);
__u_boot_cmd_start = .;
.u_boot_cmd : {
KEEP(*(.u_boot_cmd))
}
__u_boot_cmd_end = .;
. = ALIGN(4);
_got = .;
.got : {
*(.got)
}
_egot = .;
. = ALIGN(8);
_edata = .;
.bss (NOLOAD) : {
*(.bss)
*(.bss.*)
}
. = ALIGN(8);
_end = .;
}