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review.coreboot.org / coreboot / f8c7c2396eb843b17fd32d19bd9e481e088cee57 / . / src / arch / x86 / init / ldscript_failover.lb
blob: d6940eece72afef20d60bb37208732489060938b [file] [log] [blame]
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]1/*
Stefan Reinauer79253842010-04-13 13:43:35 +0000[diff] [blame]2 * This file is part of the coreboot project.
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]3 *
Stefan Reinauer79253842010-04-13 13:43:35 +0000[diff] [blame]4 * Copyright (C) 2006 Advanced Micro Devices, Inc.
5 * Copyright (C) 2008-2010 coresystems GmbH
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]6 *
Stefan Reinauer79253842010-04-13 13:43:35 +0000[diff] [blame]7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]19 */
20
Stefan Reinauer79253842010-04-13 13:43:35 +0000[diff] [blame]21/* We use ELF as output format. So that we can debug the code in some form. */
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]22OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
23OUTPUT_ARCH(i386)
24
Patrick Georgi1c1d9a02010-02-23 19:38:44 +0000[diff] [blame]25MEMORY {
26 rom : ORIGIN = 0xffff0000, LENGTH = 64K
27}
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]28
29TARGET(binary)
30SECTIONS
31{
Kyösti Mälkki7dfe32c2012-02-14 10:39:17 +0200[diff] [blame]32 /* Symbol ap_sipi_vector must be aligned to 4kB to start AP CPUs
Kyösti Mälkkif8c7c232012-04-06 04:03:50 +0300[diff] [blame^]33 * with Startup IPI message without RAM. Align .rom to next 4 byte
34 * boundary anyway, so no pad byte appears between _rom and _start.
Kyösti Mälkkib192df42011-11-23 16:33:12 +0200[diff] [blame]35 */
36 .bogus ROMLOC_MIN : {
Kyösti Mälkkif8c7c232012-04-06 04:03:50 +0300[diff] [blame^]37 . = CONFIG_SIPI_VECTOR_IN_ROM ? ALIGN(4096) : ALIGN(4);
Kyösti Mälkkib192df42011-11-23 16:33:12 +0200[diff] [blame]38 ROMLOC = .;
39 } >rom = 0xff
40
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]41 /* This section might be better named .setup */
Patrick Georgi1c1d9a02010-02-23 19:38:44 +0000[diff] [blame]42 .rom ROMLOC : {
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]43 _rom = .;
Kyösti Mälkki7dfe32c2012-02-14 10:39:17 +0200[diff] [blame]44 ap_sipi_vector = .;
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]45 *(.rom.text);
46 *(.rom.data);
47 *(.rom.data.*);
48 *(.rodata.*);
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]49 _erom = .;
Stefan Reinauer79253842010-04-13 13:43:35 +0000[diff] [blame]50 } >rom = 0xff
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]51
Kyösti Mälkkib192df42011-11-23 16:33:12 +0200[diff] [blame]52 /* Allocation reserves extra 16 bytes here. Alignment requirements
53 * may cause the total size of a section to change when the start
54 * address gets applied.
55 */
Kyösti Mälkkif8c7c232012-04-06 04:03:50 +0300[diff] [blame^]56 ROMLOC_MIN = 0xffffff00 - (_erom - _rom + 16) -
57 (CONFIG_SIPI_VECTOR_IN_ROM ? 4096 : 0);
Kyösti Mälkki7dfe32c2012-02-14 10:39:17 +0200[diff] [blame]58
59 /* Post-check proper SIPI vector. */
Kyösti Mälkkif8c7c232012-04-06 04:03:50 +0300[diff] [blame^]60 _bogus = ASSERT(!CONFIG_SIPI_VECTOR_IN_ROM || ((ap_sipi_vector & 0x0fff) == 0x0),
61 "Bad SIPI vector alignment");
62 _bogus = ASSERT(!CONFIG_SIPI_VECTOR_IN_ROM || (ap_sipi_vector == CONFIG_AP_SIPI_VECTOR),
63 "Address mismatch on AP_SIPI_VECTOR");
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]64
65 /DISCARD/ : {
66 *(.comment)
67 *(.note)
68 *(.comment.*)
69 *(.note.*)
Patrick Georgi1c1d9a02010-02-23 19:38:44 +0000[diff] [blame]70 *(.iplt)
71 *(.rel.*)
72 *(.igot.*)
Patrick Georgi3c970ee2010-02-19 19:59:03 +0000[diff] [blame]73 }
74}