4330a9c8e5
In order to align the entry points for the various stages on x86 to _start one needs to rename the reset_vector symbol. The section is the same; it's just a symbol change. Change-Id: I0e6bbf1da04a6e248781a9c222a146725c34268a Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13881 Tested-by: build bot (Jenkins) Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
72 lines
1.9 KiB
Text
72 lines
1.9 KiB
Text
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* Copyright (C) 2006 Advanced Micro Devices, Inc.
|
|
* Copyright (C) 2008-2010 coresystems GmbH
|
|
*
|
|
* 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; version 2 of the License.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
ENTRY(_start)
|
|
|
|
MEMORY {
|
|
rom : ORIGIN = 0xffff0000, LENGTH = 64K
|
|
}
|
|
|
|
TARGET(binary)
|
|
SECTIONS
|
|
{
|
|
/* Symbol ap_sipi_vector must be aligned to 4kB to start AP CPUs
|
|
* with Startup IPI message without RAM. Align .rom to next 4 byte
|
|
* boundary anyway, so no pad byte appears between _rom and _start.
|
|
*/
|
|
.bogus ROMLOC_MIN : {
|
|
. = CONFIG_SIPI_VECTOR_IN_ROM ? ALIGN(4096) : ALIGN(4);
|
|
ROMLOC = .;
|
|
} >rom = 0xff
|
|
|
|
/* This section might be better named .setup */
|
|
.rom ROMLOC : {
|
|
_rom = .;
|
|
ap_sipi_vector = .;
|
|
*(.rom.text);
|
|
*(.rom.data);
|
|
*(.rom.data.*);
|
|
*(.text);
|
|
*(.text.*);
|
|
*(.rodata);
|
|
*(.rodata.*);
|
|
_erom = .;
|
|
} >rom = 0xff
|
|
|
|
/* Allocation reserves extra 16 bytes here. Alignment requirements
|
|
* may cause the total size of a section to change when the start
|
|
* address gets applied.
|
|
*/
|
|
ROMLOC_MIN = 0xffffff00 - (_erom - _rom + 16) -
|
|
(CONFIG_SIPI_VECTOR_IN_ROM ? 4096 : 0);
|
|
|
|
/* Post-check proper SIPI vector. */
|
|
_bogus = ASSERT(!CONFIG_SIPI_VECTOR_IN_ROM || ((ap_sipi_vector & 0x0fff) == 0x0),
|
|
"Bad SIPI vector alignment");
|
|
_bogus = ASSERT(!CONFIG_SIPI_VECTOR_IN_ROM || (ap_sipi_vector == CONFIG_AP_SIPI_VECTOR),
|
|
"Address mismatch on AP_SIPI_VECTOR");
|
|
|
|
/DISCARD/ : {
|
|
*(.comment)
|
|
*(.note)
|
|
*(.comment.*)
|
|
*(.note.*)
|
|
*(.eh_frame)
|
|
*(.iplt)
|
|
*(.rel.*)
|
|
*(.igot.*)
|
|
}
|
|
}
|