128 lines
4.1 KiB
C
128 lines
4.1 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2005,2006,2007,2008,2009 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_KERNEL_HEADER
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#define GRUB_KERNEL_HEADER 1
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#include <grub/types.h>
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#include <grub/symbol.h>
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enum
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{
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OBJ_TYPE_ELF,
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OBJ_TYPE_MEMDISK,
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OBJ_TYPE_CONFIG,
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OBJ_TYPE_PREFIX,
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OBJ_TYPE_PUBKEY
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};
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/* The module header. */
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struct grub_module_header
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{
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/* The type of object. */
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grub_uint32_t type;
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/* The size of object (including this header). */
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grub_uint32_t size;
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};
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/* "gmim" (GRUB Module Info Magic). */
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#define GRUB_MODULE_MAGIC 0x676d696d
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struct grub_module_info32
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{
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/* Magic number so we know we have modules present. */
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grub_uint32_t magic;
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/* The offset of the modules. */
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grub_uint32_t offset;
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/* The size of all modules plus this header. */
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grub_uint32_t size;
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};
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struct grub_module_info64
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{
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/* Magic number so we know we have modules present. */
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grub_uint32_t magic;
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grub_uint32_t padding;
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/* The offset of the modules. */
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grub_uint64_t offset;
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/* The size of all modules plus this header. */
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grub_uint64_t size;
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};
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#ifndef GRUB_UTIL
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/* Space isn't reusable on some platforms. */
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/* On Qemu the preload space is readonly. */
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/* On emu there is no preload space. */
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/* On ieee1275 our code assumes that heap is p=v which isn't guaranteed for module space. */
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#if defined (GRUB_MACHINE_QEMU) || defined (GRUB_MACHINE_EMU) \
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|| defined (GRUB_MACHINE_EFI) \
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|| (defined (GRUB_MACHINE_IEEE1275) && !defined (__sparc__))
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#define GRUB_KERNEL_PRELOAD_SPACE_REUSABLE 0
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#endif
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#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) \
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|| defined (GRUB_MACHINE_MULTIBOOT) || defined (GRUB_MACHINE_MIPS_QEMU_MIPS) \
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|| defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_ARC) \
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|| defined (__sparc__) || defined (GRUB_MACHINE_UBOOT) || defined (GRUB_MACHINE_XEN)
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/* FIXME: stack is between 2 heap regions. Move it. */
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#define GRUB_KERNEL_PRELOAD_SPACE_REUSABLE 1
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#endif
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#ifndef GRUB_KERNEL_PRELOAD_SPACE_REUSABLE
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#error "Please check if preload space is reusable on this platform!"
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#endif
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#if GRUB_TARGET_SIZEOF_VOID_P == 8
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#define grub_module_info grub_module_info64
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#else
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#define grub_module_info grub_module_info32
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#endif
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extern grub_addr_t EXPORT_VAR (grub_modbase);
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#define FOR_MODULES(var) for (\
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var = (grub_modbase && ((((struct grub_module_info *) grub_modbase)->magic) == GRUB_MODULE_MAGIC)) ? (struct grub_module_header *) \
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(grub_modbase + (((struct grub_module_info *) grub_modbase)->offset)) : 0;\
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var && (grub_addr_t) var \
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< (grub_modbase + (((struct grub_module_info *) grub_modbase)->size)); \
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var = (struct grub_module_header *) \
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(((grub_uint32_t *) var) + ((((struct grub_module_header *) var)->size + sizeof (grub_addr_t) - 1) / sizeof (grub_addr_t)) * (sizeof (grub_addr_t) / sizeof (grub_uint32_t))))
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grub_addr_t grub_modules_get_end (void);
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#endif
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/* The start point of the C code. */
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void grub_main (void) __attribute__ ((noreturn));
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/* The machine-specific initialization. This must initialize memory. */
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void grub_machine_init (void);
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/* The machine-specific finalization. */
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void EXPORT_FUNC(grub_machine_fini) (int flags);
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/* The machine-specific prefix initialization. */
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void
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grub_machine_get_bootlocation (char **device, char **path);
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/* Register all the exported symbols. This is automatically generated. */
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void grub_register_exported_symbols (void);
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extern void (*EXPORT_VAR(grub_net_poll_cards_idle)) (void);
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#endif /* ! GRUB_KERNEL_HEADER */
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