MErge mainline into intwrap
This commit is contained in:
Vladimir 'phcoder' Serbinenko
commit
afba9f98ec
719 changed files with 55744 additions and 25714 deletions
55
grub-core/lib/i386/halt.c
Normal file
55
grub-core/lib/i386/halt.c
Normal file
|
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2008 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/>.
|
||||
*/
|
||||
|
||||
#include <grub/cpu/io.h>
|
||||
#include <grub/misc.h>
|
||||
|
||||
const char bochs_shutdown[] = "Shutdown";
|
||||
|
||||
/*
|
||||
* This call is special... it never returns... in fact it should simply
|
||||
* hang at this point!
|
||||
*/
|
||||
static inline void __attribute__ ((noreturn))
|
||||
stop (void)
|
||||
{
|
||||
asm volatile ("cli");
|
||||
while (1)
|
||||
{
|
||||
asm volatile ("hlt");
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
grub_halt (void)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
/* Disable interrupts. */
|
||||
__asm__ __volatile__ ("cli");
|
||||
|
||||
/* Bochs, QEMU, etc. */
|
||||
for (i = 0; i < sizeof (bochs_shutdown) - 1; i++)
|
||||
grub_outb (bochs_shutdown[i], 0x8900);
|
||||
|
||||
grub_printf ("GRUB doesn't know how to halt this machine yet!\n");
|
||||
|
||||
/* In order to return we'd have to check what the previous status of IF
|
||||
flag was. But user most likely doesn't want to return anyway ... */
|
||||
stop ();
|
||||
}
|
||||
46
grub-core/lib/i386/pc/biosnum.c
Normal file
46
grub-core/lib/i386/pc/biosnum.c
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
/*
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
#include <grub/env.h>
|
||||
#include <grub/misc.h>
|
||||
#include <grub/disk.h>
|
||||
|
||||
static int
|
||||
grub_get_root_biosnumber_default (void)
|
||||
{
|
||||
char *biosnum;
|
||||
int ret = -1;
|
||||
grub_device_t dev;
|
||||
|
||||
biosnum = grub_env_get ("biosnum");
|
||||
|
||||
if (biosnum)
|
||||
return grub_strtoul (biosnum, 0, 0);
|
||||
|
||||
dev = grub_device_open (0);
|
||||
if (dev && dev->disk && dev->disk->dev
|
||||
&& dev->disk->dev->id == GRUB_DISK_DEVICE_BIOSDISK_ID)
|
||||
ret = (int) dev->disk->id;
|
||||
|
||||
if (dev)
|
||||
grub_device_close (dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int (*grub_get_root_biosnumber) (void) = grub_get_root_biosnumber_default;
|
||||
102
grub-core/lib/i386/relocator.c
Normal file
102
grub-core/lib/i386/relocator.c
Normal file
|
|
@ -0,0 +1,102 @@
|
|||
/*
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
#include <grub/mm.h>
|
||||
#include <grub/misc.h>
|
||||
|
||||
#include <grub/types.h>
|
||||
#include <grub/types.h>
|
||||
#include <grub/err.h>
|
||||
|
||||
#include <grub/i386/relocator.h>
|
||||
|
||||
extern grub_uint8_t grub_relocator32_forward_start;
|
||||
extern grub_uint8_t grub_relocator32_forward_end;
|
||||
extern grub_uint8_t grub_relocator32_backward_start;
|
||||
extern grub_uint8_t grub_relocator32_backward_end;
|
||||
|
||||
extern grub_uint32_t grub_relocator32_backward_dest;
|
||||
extern grub_uint32_t grub_relocator32_backward_size;
|
||||
extern grub_addr_t grub_relocator32_backward_src;
|
||||
|
||||
extern grub_uint32_t grub_relocator32_forward_dest;
|
||||
extern grub_uint32_t grub_relocator32_forward_size;
|
||||
extern grub_addr_t grub_relocator32_forward_src;
|
||||
|
||||
extern grub_uint32_t grub_relocator32_forward_eax;
|
||||
extern grub_uint32_t grub_relocator32_forward_ebx;
|
||||
extern grub_uint32_t grub_relocator32_forward_ecx;
|
||||
extern grub_uint32_t grub_relocator32_forward_edx;
|
||||
extern grub_uint32_t grub_relocator32_forward_eip;
|
||||
extern grub_uint32_t grub_relocator32_forward_esp;
|
||||
|
||||
extern grub_uint32_t grub_relocator32_backward_eax;
|
||||
extern grub_uint32_t grub_relocator32_backward_ebx;
|
||||
extern grub_uint32_t grub_relocator32_backward_ecx;
|
||||
extern grub_uint32_t grub_relocator32_backward_edx;
|
||||
extern grub_uint32_t grub_relocator32_backward_eip;
|
||||
extern grub_uint32_t grub_relocator32_backward_esp;
|
||||
|
||||
#define RELOCATOR_SIZEOF(x) (&grub_relocator32_##x##_end - &grub_relocator32_##x##_start)
|
||||
#define RELOCATOR_ALIGN 16
|
||||
#define PREFIX(x) grub_relocator32_ ## x
|
||||
|
||||
static void
|
||||
write_call_relocator_bw (void *ptr, void *src, grub_uint32_t dest,
|
||||
grub_size_t size, struct grub_relocator32_state state)
|
||||
{
|
||||
grub_relocator32_backward_dest = dest;
|
||||
grub_relocator32_backward_src = PTR_TO_UINT64 (src);
|
||||
grub_relocator32_backward_size = size;
|
||||
|
||||
grub_relocator32_backward_eax = state.eax;
|
||||
grub_relocator32_backward_ebx = state.ebx;
|
||||
grub_relocator32_backward_ecx = state.ecx;
|
||||
grub_relocator32_backward_edx = state.edx;
|
||||
grub_relocator32_backward_eip = state.eip;
|
||||
grub_relocator32_backward_esp = state.esp;
|
||||
|
||||
grub_memmove (ptr,
|
||||
&grub_relocator32_backward_start,
|
||||
RELOCATOR_SIZEOF (backward));
|
||||
((void (*) (void)) ptr) ();
|
||||
}
|
||||
|
||||
static void
|
||||
write_call_relocator_fw (void *ptr, void *src, grub_uint32_t dest,
|
||||
grub_size_t size, struct grub_relocator32_state state)
|
||||
{
|
||||
|
||||
grub_relocator32_forward_dest = dest;
|
||||
grub_relocator32_forward_src = PTR_TO_UINT64 (src);
|
||||
grub_relocator32_forward_size = size;
|
||||
|
||||
grub_relocator32_forward_eax = state.eax;
|
||||
grub_relocator32_forward_ebx = state.ebx;
|
||||
grub_relocator32_forward_ecx = state.ecx;
|
||||
grub_relocator32_forward_edx = state.edx;
|
||||
grub_relocator32_forward_eip = state.eip;
|
||||
grub_relocator32_forward_esp = state.esp;
|
||||
|
||||
grub_memmove (ptr,
|
||||
&grub_relocator32_forward_start,
|
||||
RELOCATOR_SIZEOF (forward));
|
||||
((void (*) (void)) ptr) ();
|
||||
}
|
||||
|
||||
#include "../relocator.c"
|
||||
250
grub-core/lib/i386/relocator_asm.S
Normal file
250
grub-core/lib/i386/relocator_asm.S
Normal file
|
|
@ -0,0 +1,250 @@
|
|||
/*
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
#include <grub/symbol.h>
|
||||
#include <grub/i386/memory.h>
|
||||
|
||||
#ifdef BACKWARD
|
||||
#define RELOCATOR_VARIABLE(x) VARIABLE(grub_relocator32_backward_ ## x)
|
||||
#else
|
||||
#define RELOCATOR_VARIABLE(x) VARIABLE(grub_relocator32_forward_ ## x)
|
||||
#endif
|
||||
#ifdef __x86_64__
|
||||
#define RAX %rax
|
||||
#define RCX %rcx
|
||||
#define RDI %rdi
|
||||
#define RSI %rdi
|
||||
#else
|
||||
#define RAX %eax
|
||||
#define RCX %ecx
|
||||
#define RDI %edi
|
||||
#define RSI %esi
|
||||
#endif
|
||||
|
||||
/* The code segment of the protected mode. */
|
||||
#define CODE_SEGMENT 0x10
|
||||
|
||||
/* The data segment of the protected mode. */
|
||||
#define DATA_SEGMENT 0x18
|
||||
|
||||
.p2align 4 /* force 16-byte alignment */
|
||||
|
||||
RELOCATOR_VARIABLE(start)
|
||||
#ifdef BACKWARD
|
||||
LOCAL(base):
|
||||
#endif
|
||||
cli
|
||||
|
||||
#ifndef __x86_64__
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
RELOCATOR_VARIABLE(dest)
|
||||
.long 0
|
||||
movl %eax, %edi
|
||||
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
RELOCATOR_VARIABLE(src)
|
||||
.long 0
|
||||
movl %eax, %esi
|
||||
|
||||
/* mov imm32, %ecx */
|
||||
.byte 0xb9
|
||||
RELOCATOR_VARIABLE(size)
|
||||
.long 0
|
||||
#else
|
||||
xorq %rax, %rax
|
||||
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
RELOCATOR_VARIABLE(dest)
|
||||
.long 0
|
||||
movq %rax, %rdi
|
||||
|
||||
/* mov imm64, %rax */
|
||||
.byte 0x48
|
||||
.byte 0xb8
|
||||
RELOCATOR_VARIABLE(src)
|
||||
.long 0, 0
|
||||
movq %rax, %rsi
|
||||
|
||||
xorq %rcx, %rcx
|
||||
/* mov imm32, %ecx */
|
||||
.byte 0xb9
|
||||
RELOCATOR_VARIABLE(size)
|
||||
.long 0
|
||||
|
||||
#endif
|
||||
|
||||
mov RDI, RAX
|
||||
|
||||
#ifdef BACKWARD
|
||||
add RCX, RSI
|
||||
add RCX, RDI
|
||||
#endif
|
||||
|
||||
#ifndef BACKWARD
|
||||
add RCX, RAX
|
||||
#endif
|
||||
add $0x3, RCX
|
||||
shr $2, RCX
|
||||
|
||||
|
||||
#ifdef BACKWARD
|
||||
/* Backward movsl is implicitly off-by-four. compensate that. */
|
||||
sub $4, RSI
|
||||
sub $4, RDI
|
||||
|
||||
/* Backward copy. */
|
||||
std
|
||||
|
||||
rep
|
||||
movsl
|
||||
|
||||
#else
|
||||
/* Forward copy. */
|
||||
cld
|
||||
rep
|
||||
movsl
|
||||
#endif
|
||||
|
||||
/* %rax contains now our new 'base'. */
|
||||
mov RAX, RSI
|
||||
add $(LOCAL(cont0) - LOCAL(base)), RAX
|
||||
jmp *RAX
|
||||
LOCAL(cont0):
|
||||
lea (LOCAL(cont1) - LOCAL(base)) (RSI, 1), RAX
|
||||
movl %eax, (LOCAL(jump_vector) - LOCAL(base)) (RSI, 1)
|
||||
|
||||
lea (LOCAL(gdt) - LOCAL(base)) (RSI, 1), RAX
|
||||
mov RAX, (LOCAL(gdt_addr) - LOCAL(base)) (RSI, 1)
|
||||
|
||||
/* Switch to compatibility mode. */
|
||||
|
||||
lgdt (LOCAL(gdtdesc) - LOCAL(base)) (RSI, 1)
|
||||
|
||||
/* Update %cs. */
|
||||
ljmp *(LOCAL(jump_vector) - LOCAL(base)) (RSI, 1)
|
||||
|
||||
LOCAL(cont1):
|
||||
.code32
|
||||
|
||||
/* Update other registers. */
|
||||
movl $DATA_SEGMENT, %eax
|
||||
movl %eax, %ds
|
||||
movl %eax, %es
|
||||
movl %eax, %fs
|
||||
movl %eax, %gs
|
||||
movl %eax, %ss
|
||||
|
||||
/* Disable paging. */
|
||||
movl %cr0, %eax
|
||||
andl $(~GRUB_MEMORY_CPU_CR0_PAGING_ON), %eax
|
||||
movl %eax, %cr0
|
||||
|
||||
#ifdef __x86_64__
|
||||
/* Disable amd64. */
|
||||
movl $GRUB_MEMORY_CPU_AMD64_MSR, %ecx
|
||||
rdmsr
|
||||
andl $(~GRUB_MEMORY_CPU_AMD64_MSR_ON), %eax
|
||||
wrmsr
|
||||
#endif
|
||||
|
||||
/* Turn off PAE. */
|
||||
movl %cr4, %eax
|
||||
andl $GRUB_MEMORY_CPU_CR4_PAE_ON, %eax
|
||||
movl %eax, %cr4
|
||||
|
||||
jmp LOCAL(cont2)
|
||||
LOCAL(cont2):
|
||||
.code32
|
||||
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
RELOCATOR_VARIABLE (esp)
|
||||
.long 0
|
||||
|
||||
movl %eax, %esp
|
||||
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
RELOCATOR_VARIABLE (eax)
|
||||
.long 0
|
||||
|
||||
/* mov imm32, %ebx */
|
||||
.byte 0xbb
|
||||
RELOCATOR_VARIABLE (ebx)
|
||||
.long 0
|
||||
|
||||
/* mov imm32, %ecx */
|
||||
.byte 0xb9
|
||||
RELOCATOR_VARIABLE (ecx)
|
||||
.long 0
|
||||
|
||||
/* mov imm32, %edx */
|
||||
.byte 0xba
|
||||
RELOCATOR_VARIABLE (edx)
|
||||
.long 0
|
||||
|
||||
/* Cleared direction flag is of no problem with any current
|
||||
payload and makes this implementation easier. */
|
||||
cld
|
||||
|
||||
.byte 0xea
|
||||
RELOCATOR_VARIABLE (eip)
|
||||
.long 0
|
||||
.word CODE_SEGMENT
|
||||
|
||||
/* GDT. Copied from loader/i386/linux.c. */
|
||||
.p2align 4
|
||||
LOCAL(gdt):
|
||||
/* NULL. */
|
||||
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
|
||||
|
||||
/* Reserved. */
|
||||
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
|
||||
|
||||
/* Code segment. */
|
||||
.byte 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x9A, 0xCF, 0x00
|
||||
|
||||
/* Data segment. */
|
||||
.byte 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x92, 0xCF, 0x00
|
||||
|
||||
.p2align 4
|
||||
LOCAL(gdtdesc):
|
||||
.word 0x27
|
||||
LOCAL(gdt_addr):
|
||||
#ifdef __x86_64__
|
||||
/* Filled by the code. */
|
||||
.quad 0
|
||||
#else
|
||||
/* Filled by the code. */
|
||||
.long 0
|
||||
#endif
|
||||
|
||||
.p2align 4
|
||||
LOCAL(jump_vector):
|
||||
/* Jump location. Is filled by the code */
|
||||
.long 0
|
||||
.long CODE_SEGMENT
|
||||
|
||||
#ifndef BACKWARD
|
||||
LOCAL(base):
|
||||
#endif
|
||||
|
||||
RELOCATOR_VARIABLE(end)
|
||||
2
grub-core/lib/i386/relocator_backward.S
Normal file
2
grub-core/lib/i386/relocator_backward.S
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
#define BACKWARD
|
||||
#include "relocator_asm.S"
|
||||
56
grub-core/lib/i386/setjmp.S
Normal file
56
grub-core/lib/i386/setjmp.S
Normal file
|
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2003,2007 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/>.
|
||||
*/
|
||||
|
||||
#include <grub/symbol.h>
|
||||
|
||||
.file "setjmp.S"
|
||||
|
||||
.text
|
||||
|
||||
/*
|
||||
* int grub_setjmp (grub_jmp_buf env)
|
||||
*/
|
||||
FUNCTION(grub_setjmp)
|
||||
movl %ebx, 0(%eax) /* EBX */
|
||||
movl %esi, 4(%eax) /* ESI */
|
||||
movl %edi, 8(%eax) /* EDI */
|
||||
movl %ebp, 12(%eax) /* EBP */
|
||||
popl %ecx
|
||||
movl %esp, 16(%eax) /* ESP */
|
||||
movl %ecx, 20(%eax) /* EIP */
|
||||
xorl %eax, %eax
|
||||
jmp *%ecx
|
||||
|
||||
|
||||
/*
|
||||
* int grub_longjmp (grub_jmp_buf env, int val)
|
||||
*/
|
||||
FUNCTION(grub_longjmp)
|
||||
movl 0(%eax), %ebx
|
||||
movl 4(%eax), %esi
|
||||
movl 8(%eax), %edi
|
||||
movl 12(%eax), %ebp
|
||||
movl 16(%eax), %esp
|
||||
movl 20(%eax), %ecx
|
||||
|
||||
movl %edx, %eax
|
||||
testl %eax, %eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: jmp *%ecx
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue