coreboot/src/arch/x86/romstage.ld

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/*
* 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.
*
* 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.
*/
TARGET(binary)
SECTIONS
{
. = ROMSTAGE_BASE;
.rom . : {
_rom = .;
*(.rom.text);
*(.rom.text.*);
*(.text);
*(.text.*);
*(.rom.data);
. = ALIGN(4);
_cbmem_init_hooks = .;
KEEP(*(.rodata.cbmem_init_hooks));
_ecbmem_init_hooks = .;
*(.rodata);
*(.rodata.*);
*(.rom.data.*);
. = ALIGN(16);
_erom = .;
}
/DISCARD/ : {
*(.comment)
*(.note)
*(.comment.*)
*(.note.*)
*(.eh_frame);
}
. = CONFIG_DCACHE_RAM_BASE;
.car.data . (NOLOAD) : {
_car_data_start = .;
#if IS_ENABLED(CONFIG_HAS_PRECBMEM_TIMESTAMP_REGION)
_timestamp = .;
. = . + 0x100;
_etimestamp = .;
#endif
*(.car.global_data);
_car_data_end = .;
/* The preram cbmem console area comes last to take advantage
* of a zero-sized array to hold the memconsole contents.
* However, collisions within the cache-as-ram region cannot be
* statically checked because the cache-as-ram region usage is
* cpu/chipset dependent. */
_preram_cbmem_console = .;
_epreram_cbmem_console = . + (CONFIG_LATE_CBMEM_INIT ? 0 : 0xc00);
}
/* Global variables are not allowed in romstage
* This section is checked during stage creation to ensure
* that there are no global variables present
*/
. = 0xffffff00;
.illegal_globals . : {
*(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data)
*(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data.*)
*(.bss)
*(.bss.*)
*(.sbss)
*(.sbss.*)
}
_bogus = ASSERT((CONFIG_DCACHE_RAM_SIZE == 0) || (SIZEOF(.car.data) + 0xc00 <= CONFIG_DCACHE_RAM_SIZE), "Cache as RAM area is too full");
}