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lib/relocator

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-08-03 12:48:25 +02:00
parent f84114f583
commit e7573c5ce2
9 changed files with 509 additions and 120 deletions
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11
include/grub/i386/multiboot.h
View file

@ -27,16 +27,11 @@ void grub_multiboot2_real_boot (grub_addr_t entry,
struct grub_multiboot_info *mbi)
__attribute__ ((noreturn));
extern grub_addr_t grub_multiboot_payload_orig;
extern grub_uint32_t grub_multiboot_payload_eip;
extern char *grub_multiboot_payload_orig;
extern grub_addr_t grub_multiboot_payload_dest;
extern grub_size_t grub_multiboot_payload_size;
extern grub_uint32_t grub_multiboot_payload_entry_offset;
extern grub_uint8_t grub_multiboot_forward_relocator;
extern grub_uint8_t grub_multiboot_forward_relocator_end;
extern grub_uint8_t grub_multiboot_backward_relocator;
extern grub_uint8_t grub_multiboot_backward_relocator_end;
#define RELOCATOR_SIZEOF(x) (&grub_multiboot_##x##_relocator_end - &grub_multiboot_##x##_relocator)
#define GRUB_MULTIBOOT_STACK_SIZE 4096
#endif /* ! GRUB_MULTIBOOT_CPU_HEADER */

40
include/grub/i386/relocator.h Normal file
View file

@ -0,0 +1,40 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB 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, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_RELOCATOR_CPU_HEADER
#define GRUB_RELOCATOR_CPU_HEADER 1
struct grub_relocator32_state
{
grub_uint32_t esp;
grub_uint32_t eax;
grub_uint32_t ebx;
grub_uint32_t ecx;
grub_uint32_t edx;
grub_uint32_t eip;
};
void *
grub_relocator32_alloc (grub_size_t size);
grub_err_t
grub_relocator32_boot (void *relocator, grub_uint32_t dest,
struct grub_relocator32_state state);
void
grub_relocator32_free (void *relocator);
#endif /* ! GRUB_RELOCATOR_CPU_HEADER */