113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __SYMBOLS_H
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#define __SYMBOLS_H
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#include <types.h>
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extern u8 _sram[];
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extern u8 _esram[];
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#define _sram_size (_esram - _sram)
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extern u8 _dram[];
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extern u8 _timestamp[];
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extern u8 _etimestamp[];
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#define _timestamp_size (_etimestamp - _timestamp)
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extern u8 _preram_cbmem_console[];
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extern u8 _epreram_cbmem_console[];
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#define _preram_cbmem_console_size \
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(_epreram_cbmem_console - _preram_cbmem_console)
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extern u8 _cbmem_init_hooks[];
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extern u8 _ecbmem_init_hooks[];
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#define _cbmem_init_hooks_size (_ecbmem_init_hooks - _cbmem_init_hooks)
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extern u8 _stack[];
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extern u8 _estack[];
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#define _stack_size (_estack - _stack)
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extern u8 _preram_cbfs_cache[];
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extern u8 _epreram_cbfs_cache[];
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#define _preram_cbfs_cache_size (_epreram_cbfs_cache - _preram_cbfs_cache)
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extern u8 _postram_cbfs_cache[];
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extern u8 _epostram_cbfs_cache[];
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#define _postram_cbfs_cache_size (_epostram_cbfs_cache - _postram_cbfs_cache)
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extern u8 _cbfs_cache[];
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extern u8 _ecbfs_cache[];
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#define _cbfs_cache_size (_ecbfs_cache - _cbfs_cache)
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extern u8 _payload[];
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extern u8 _epayload[];
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#define _payload_size (_epayload - _payload)
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/* "program" always refers to the current execution unit. */
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extern u8 _program[];
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extern u8 _eprogram[];
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#define _program_size (_eprogram - _program)
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/* _<stage>_size is always the maximum amount allocated in memlayout, whereas
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* _program_size gives the actual memory footprint *used* by current stage. */
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extern u8 _bootblock[];
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extern u8 _ebootblock[];
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#define _bootblock_size (_ebootblock - _bootblock)
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extern u8 _romstage[];
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extern u8 _eromstage[];
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#define _romstage_size (_eromstage - _romstage)
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extern u8 _ramstage[];
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extern u8 _eramstage[];
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#define _ramstage_size (_eramstage - _ramstage)
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extern u8 _verstage[];
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extern u8 _everstage[];
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#define _verstage_size (_everstage - _verstage)
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/* Arch-specific, move to <arch/symbols.h> if they become too many. */
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extern u8 _ttb[];
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extern u8 _ettb[];
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#define _ttb_size (_ettb - _ttb)
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extern u8 _ttb_subtables[];
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extern u8 _ettb_subtables[];
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#define _ttb_subtables_size (_ettb_subtables - _ttb_subtables)
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extern u8 _dma_coherent[];
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extern u8 _edma_coherent[];
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#define _dma_coherent_size (_edma_coherent - _dma_coherent)
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extern u8 _soc_registers[];
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extern u8 _esoc_registers[];
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#define _soc_registers_size (_esoc_registers - _soc_registers)
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extern u8 _framebuffer[];
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extern u8 _eframebuffer[];
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#define _framebuffer_size (_eframebuffer - _framebuffer)
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/* Put this into a .c file accessing a linker script region to mark that region
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* as "optional". If it is defined in memlayout.ld (or anywhere else), the
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* values from that definition will be used. If not, start, end and size will
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* all evaluate to 0. (We can't explicitly assign the symbols to 0 in the
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* assembly due to https://sourceware.org/bugzilla/show_bug.cgi?id=1038.) */
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#define DECLARE_OPTIONAL_REGION(name) asm (".weak _" #name ", _e" #name )
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#endif /* __SYMBOLS_H */
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