64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB 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, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB 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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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_BOOT_MACHINE_HEADER
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#define GRUB_BOOT_MACHINE_HEADER 1
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#define CIF_REG %l0
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#define CHOSEN_NODE_REG %l4
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#define STDOUT_NODE_REG %l5
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#define BOOTDEV_REG %l6
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#define PIC_REG %l7
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#define SCRATCH_PAD_BOOT 0x5000
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#define SCRATCH_PAD_DISKBOOT 0x4000
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#define SCRATCH_PAD_BOOT_SIZE 0x110
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#define GET_ABS(symbol, reg) \
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add PIC_REG, (symbol - pic_base), reg
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#define LDUW_ABS(symbol, offset, reg) \
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lduw [PIC_REG + (symbol - pic_base) + (offset)], reg
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#define LDX_ABS(symbol, offset, reg) \
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ldx [PIC_REG + (symbol - pic_base) + (offset)], reg
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#define GRUB_BOOT_AOUT_HEADER_SIZE 32
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#define GRUB_BOOT_MACHINE_SIGNATURE 0xbb44aa55
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#define GRUB_BOOT_MACHINE_BOOT_DEVPATH 0x08
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#define GRUB_BOOT_MACHINE_BOOT_DEVPATH_END 0x80
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#define GRUB_BOOT_MACHINE_KERNEL_BYTE 0x80
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#define GRUB_BOOT_MACHINE_CODE_END \
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(0x1fc - GRUB_BOOT_AOUT_HEADER_SIZE)
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#define GRUB_BOOT_MACHINE_KERNEL_ADDR 0x4200
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#ifndef ASM_FILE
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/* This is the blocklist used in the diskboot image. */
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struct grub_boot_blocklist
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{
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grub_uint64_t start;
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grub_uint32_t len;
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} GRUB_PACKED;
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#endif
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#endif /* ! BOOT_MACHINE_HEADER */
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