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Merge mainline into plan9

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-11-13 12:48:39 +01:00
commit 4e01c8c165
595 changed files with 52570 additions and 11831 deletions
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152
grub-core/loader/i386/pc/chainloader.c
View file

@ -18,7 +18,6 @@
*/
#include <grub/loader.h>
#include <grub/machine/loader.h>
#include <grub/machine/chainloader.h>
#include <grub/machine/memory.h>
#include <grub/file.h>
@ -37,28 +36,110 @@
#include <grub/i18n.h>
#include <grub/video.h>
#include <grub/mm.h>
#include <grub/fat.h>
#include <grub/ntfs.h>
#include <grub/i386/relocator.h>
GRUB_MOD_LICENSE ("GPLv3+");
static grub_dl_t my_mod;
static int boot_drive;
static void *boot_part_addr;
static grub_addr_t boot_part_addr;
static struct grub_relocator *rel;
typedef enum
{
GRUB_CHAINLOADER_FORCE = 0x1,
GRUB_CHAINLOADER_BPB = 0x2,
} grub_chainloader_flags_t;
static grub_err_t
grub_chainloader_boot (void)
{
struct grub_relocator16_state state = {
.edx = boot_drive,
.esi = boot_part_addr,
.ds = 0,
.es = 0,
.fs = 0,
.gs = 0,
.ss = 0,
.cs = 0,
.sp = GRUB_MEMORY_MACHINE_BOOT_LOADER_ADDR,
.ip = GRUB_MEMORY_MACHINE_BOOT_LOADER_ADDR,
.a20 = 0
};
grub_video_set_mode ("text", 0, 0);
grub_chainloader_real_boot (boot_drive, boot_part_addr);
/* Never reach here. */
return GRUB_ERR_NONE;
return grub_relocator16_boot (rel, state);
}
static grub_err_t
grub_chainloader_unload (void)
{
grub_relocator_unload (rel);
rel = NULL;
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
void
grub_chainloader_patch_bpb (void *bs, grub_device_t dev, grub_uint8_t dl)
{
grub_uint32_t part_start = 0;
if (dev && dev->disk)
part_start = grub_partition_get_start (dev->disk->partition);
if (grub_memcmp ((char *) &((struct grub_ntfs_bpb *) bs)->oem_name,
"NTFS", 4) == 0)
{
struct grub_ntfs_bpb *bpb = (struct grub_ntfs_bpb *) bs;
bpb->num_hidden_sectors = grub_cpu_to_le32 (part_start);
bpb->bios_drive = dl;
return;
}
do
{
struct grub_fat_bpb *bpb = (struct grub_fat_bpb *) bs;
if (grub_strncmp((const char *) bpb->version_specific.fat12_or_fat16.fstype, "FAT12", 5)
&& grub_strncmp((const char *) bpb->version_specific.fat12_or_fat16.fstype, "FAT16", 5)
&& grub_strncmp((const char *) bpb->version_specific.fat32.fstype, "FAT32", 5))
break;
if (grub_le_to_cpu16 (bpb->bytes_per_sector) < 512
|| (grub_le_to_cpu16 (bpb->bytes_per_sector)
& (grub_le_to_cpu16 (bpb->bytes_per_sector) - 1)))
break;
if (bpb->sectors_per_cluster == 0
|| (bpb->sectors_per_cluster & (bpb->sectors_per_cluster - 1)))
break;
if (bpb->num_reserved_sectors == 0)
break;
if (bpb->num_total_sectors_16 == 0 || bpb->num_total_sectors_32 == 0)
break;
if (bpb->num_fats == 0)
break;
if (bpb->sectors_per_fat_16)
{
bpb->num_hidden_sectors = grub_cpu_to_le32 (part_start);
bpb->version_specific.fat12_or_fat16.num_ph_drive = dl;
return;
}
if (bpb->version_specific.fat32.sectors_per_fat_32)
{
bpb->num_hidden_sectors = grub_cpu_to_le32 (part_start);
bpb->version_specific.fat32.num_ph_drive = dl;
return;
}
break;
}
while (0);
}
static void
grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
{
@ -66,7 +147,12 @@ grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
grub_uint16_t signature;
grub_device_t dev;
int drive = -1;
void *part_addr = 0;
grub_addr_t part_addr = 0;
grub_uint8_t *bs, *ptable;
rel = grub_relocator_new ();
if (!rel)
goto fail;
grub_dl_ref (my_mod);
@ -75,8 +161,25 @@ grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
if (! file)
goto fail;
{
grub_relocator_chunk_t ch;
grub_err_t err;
err = grub_relocator_alloc_chunk_addr (rel, &ch, 0x7C00,
GRUB_DISK_SECTOR_SIZE);
if (err)
goto fail;
bs = get_virtual_current_address (ch);
err = grub_relocator_alloc_chunk_addr (rel, &ch,
GRUB_MEMORY_MACHINE_PART_TABLE_ADDR,
64);
if (err)
goto fail;
ptable = get_virtual_current_address (ch);
}
/* Read the first block. */
if (grub_file_read (file, (void *) 0x7C00, GRUB_DISK_SECTOR_SIZE)
if (grub_file_read (file, bs, GRUB_DISK_SECTOR_SIZE)
!= GRUB_DISK_SECTOR_SIZE)
{
if (grub_errno == GRUB_ERR_NONE)
@ -86,7 +189,7 @@ grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
}
/* Check the signature. */
signature = *((grub_uint16_t *) (0x7C00 + GRUB_DISK_SECTOR_SIZE - 2));
signature = *((grub_uint16_t *) (bs + GRUB_DISK_SECTOR_SIZE - 2));
if (signature != grub_le_to_cpu16 (0xaa55)
&& ! (flags & GRUB_CHAINLOADER_FORCE))
{
@ -110,15 +213,17 @@ grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
if (p && grub_strcmp (p->partmap->name, "msdos") == 0)
{
disk->partition = p->parent;
grub_disk_read (disk, p->offset, 446, 64,
(void *) GRUB_MEMORY_MACHINE_PART_TABLE_ADDR);
part_addr = (void *) (GRUB_MEMORY_MACHINE_PART_TABLE_ADDR
+ (p->index << 4));
grub_disk_read (disk, p->offset, 446, 64, ptable);
part_addr = (GRUB_MEMORY_MACHINE_PART_TABLE_ADDR
+ (p->index << 4));
disk->partition = p;
}
}
}
if (flags & GRUB_CHAINLOADER_BPB)
grub_chainloader_patch_bpb ((void *) 0x7C00, dev, drive);
if (dev)
grub_device_close (dev);
@ -145,11 +250,23 @@ grub_cmd_chainloader (grub_command_t cmd __attribute__ ((unused)),
{
grub_chainloader_flags_t flags = 0;
if (argc > 0 && grub_strcmp (argv[0], "--force") == 0)
while (argc > 0)
{
flags |= GRUB_CHAINLOADER_FORCE;
argc--;
argv++;
if (grub_strcmp (argv[0], "--force") == 0)
{
flags |= GRUB_CHAINLOADER_FORCE;
argc--;
argv++;
continue;
}
if (grub_strcmp (argv[0], "--bpb") == 0)
{
flags |= GRUB_CHAINLOADER_BPB;
argc--;
argv++;
continue;
}
break;
}
if (argc == 0)
@ -165,7 +282,8 @@ static grub_command_t cmd;
GRUB_MOD_INIT(chainloader)
{
cmd = grub_register_command ("chainloader", grub_cmd_chainloader,
0, N_("Load another boot loader."));
N_("[--force|--bpb] FILE"),
N_("Load another boot loader."));
my_mod = mod;
}

139
grub-core/loader/i386/pc/freedos.c Normal file
View file

@ -0,0 +1,139 @@
/* chainloader.c - boot another boot loader */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2007,2009,2010 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/loader.h>
#include <grub/file.h>
#include <grub/err.h>
#include <grub/device.h>
#include <grub/disk.h>
#include <grub/misc.h>
#include <grub/types.h>
#include <grub/partition.h>
#include <grub/dl.h>
#include <grub/command.h>
#include <grub/machine/biosnum.h>
#include <grub/i18n.h>
#include <grub/video.h>
#include <grub/mm.h>
#include <grub/cpu/relocator.h>
GRUB_MOD_LICENSE ("GPLv3+");
static grub_dl_t my_mod;
static struct grub_relocator *rel;
static grub_uint32_t ebx = 0xffffffff;
#define GRUB_FREEDOS_SEGMENT 0x60
#define GRUB_FREEDOS_STACK_SEGMENT 0x1fe0
#define GRUB_FREEDOS_STACK_POINTER 0x8000
static grub_err_t
grub_freedos_boot (void)
{
struct grub_relocator16_state state = {
.cs = GRUB_FREEDOS_SEGMENT,
.ip = 0,
.ds = 0,
.es = 0,
.fs = 0,
.gs = 0,
.ss = GRUB_FREEDOS_STACK_SEGMENT,
.sp = GRUB_FREEDOS_STACK_POINTER,
.ebx = ebx,
.edx = 0,
.a20 = 1
};
grub_video_set_mode ("text", 0, 0);
return grub_relocator16_boot (rel, state);
}
static grub_err_t
grub_freedos_unload (void)
{
grub_relocator_unload (rel);
rel = NULL;
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_freedos (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_err_t err;
void *kernelsys;
grub_size_t kernelsyssize;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
grub_dl_ref (my_mod);
rel = grub_relocator_new ();
if (!rel)
goto fail;
file = grub_file_open (argv[0]);
if (! file)
goto fail;
ebx = grub_get_root_biosnumber ();
kernelsyssize = grub_file_size (file);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, GRUB_FREEDOS_SEGMENT << 4,
kernelsyssize);
if (err)
goto fail;
kernelsys = get_virtual_current_address (ch);
}
if (grub_file_read (file, kernelsys, kernelsyssize)
!= (grub_ssize_t) kernelsyssize)
goto fail;
grub_loader_set (grub_freedos_boot, grub_freedos_unload, 1);
return GRUB_ERR_NONE;
fail:
if (file)
grub_file_close (file);
grub_freedos_unload ();
return grub_errno;
}
static grub_command_t cmd;
GRUB_MOD_INIT(freedos)
{
cmd = grub_register_command ("freedos", grub_cmd_freedos,
0, N_("Load FreeDOS kernel.sys."));
my_mod = mod;
}
GRUB_MOD_FINI(freedos)
{
grub_unregister_command (cmd);
}

49
grub-core/loader/i386/pc/linux.c
View file

@ -18,7 +18,6 @@
*/
#include <grub/loader.h>
#include <grub/machine/loader.h>
#include <grub/file.h>
#include <grub/err.h>
#include <grub/device.h>
@ -34,9 +33,11 @@
#include <grub/cpu/relocator.h>
#include <grub/video.h>
#include <grub/i386/floppy.h>
#include <grub/lib/cmdline.h>
GRUB_MOD_LICENSE ("GPLv3+");
#define GRUB_LINUX_CL_OFFSET 0x9000
#define GRUB_LINUX_CL_END_OFFSET 0x90FF
static grub_dl_t my_mod;
@ -46,6 +47,7 @@ static struct grub_relocator *relocator = NULL;
static grub_addr_t grub_linux_real_target;
static char *grub_linux_real_chunk;
static grub_size_t grub_linux16_prot_size;
static grub_size_t maximal_cmdline_size;
static grub_err_t
grub_linux16_boot (void)
@ -58,6 +60,7 @@ grub_linux16_boot (void)
state.sp = GRUB_LINUX_SETUP_STACK;
state.cs = segment + 0x20;
state.ip = 0;
state.a20 = 1;
grub_video_set_mode ("text", 0, 0);
@ -86,7 +89,6 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_size_t real_size;
grub_ssize_t len;
int i;
char *dest;
char *grub_linux_prot_chunk;
int grub_linux_is_bzimage;
grub_addr_t grub_linux_prot_target;
@ -126,15 +128,20 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
setup_sects = lh.setup_sects;
linux_mem_size = 0;
maximal_cmdline_size = 256;
if (lh.header == grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE)
&& grub_le_to_cpu16 (lh.version) >= 0x0200)
{
grub_linux_is_bzimage = (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL);
lh.type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE;
if (grub_le_to_cpu16 (lh.version) >= 0x0206)
maximal_cmdline_size = grub_le_to_cpu32 (lh.cmdline_size) + 1;
/* Put the real mode part at as a high location as possible. */
grub_linux_real_target = grub_mmap_get_lower ()
- GRUB_LINUX_SETUP_MOVE_SIZE;
- (GRUB_LINUX_CL_OFFSET + maximal_cmdline_size);
/* But it must not exceed the traditional area. */
if (grub_linux_real_target > GRUB_LINUX_OLD_REAL_MODE_ADDR)
grub_linux_real_target = GRUB_LINUX_OLD_REAL_MODE_ADDR;
@ -151,7 +158,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
{
lh.cl_magic = grub_cpu_to_le16 (GRUB_LINUX_CL_MAGIC);
lh.cl_offset = grub_cpu_to_le16 (GRUB_LINUX_CL_OFFSET);
lh.setup_move_size = grub_cpu_to_le16 (GRUB_LINUX_SETUP_MOVE_SIZE);
lh.setup_move_size = grub_cpu_to_le16 (GRUB_LINUX_CL_OFFSET
+ maximal_cmdline_size);
}
}
else
@ -183,12 +191,13 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
goto fail;
}
if (grub_linux_real_target + GRUB_LINUX_SETUP_MOVE_SIZE
if (grub_linux_real_target + GRUB_LINUX_CL_OFFSET + maximal_cmdline_size
> grub_mmap_get_lower ())
{
grub_error (GRUB_ERR_OUT_OF_RANGE,
"too small lower memory (0x%x > 0x%x)",
grub_linux_real_target + GRUB_LINUX_SETUP_MOVE_SIZE,
grub_linux_real_target + GRUB_LINUX_CL_OFFSET
+ maximal_cmdline_size,
(int) grub_mmap_get_lower ());
goto fail;
}
@ -261,7 +270,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
grub_linux_real_target,
GRUB_LINUX_SETUP_MOVE_SIZE);
GRUB_LINUX_CL_OFFSET
+ maximal_cmdline_size);
if (err)
return err;
grub_linux_real_chunk = get_virtual_current_address (ch);
@ -286,21 +296,14 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
((GRUB_LINUX_MAX_SETUP_SECTS - setup_sects - 1)
<< GRUB_DISK_SECTOR_BITS));
/* Specify the boot file. */
dest = grub_stpcpy (grub_linux_real_chunk + GRUB_LINUX_CL_OFFSET,
"BOOT_IMAGE=");
dest = grub_stpcpy (dest, argv[0]);
/* Copy kernel parameters. */
for (i = 1;
i < argc
&& dest + grub_strlen (argv[i]) + 1 < (grub_linux_real_chunk
+ GRUB_LINUX_CL_END_OFFSET);
i++)
{
*dest++ = ' ';
dest = grub_stpcpy (dest, argv[i]);
}
/* Create kernel command line. */
grub_memcpy ((char *)grub_linux_real_chunk + GRUB_LINUX_CL_OFFSET,
LINUX_IMAGE, sizeof (LINUX_IMAGE));
grub_create_loader_cmdline (argc, argv,
(char *)grub_linux_real_chunk
+ GRUB_LINUX_CL_OFFSET + sizeof (LINUX_IMAGE) - 1,
maximal_cmdline_size
- (sizeof (LINUX_IMAGE) - 1));
if (grub_linux_is_bzimage)
grub_linux_prot_target = GRUB_LINUX_BZIMAGE_ADDR;

7
grub-core/loader/i386/pc/ntldr.c
View file

@ -32,6 +32,9 @@
#include <grub/video.h>
#include <grub/mm.h>
#include <grub/cpu/relocator.h>
#include <grub/machine/chainloader.h>
GRUB_MOD_LICENSE ("GPLv3+");
static grub_dl_t my_mod;
static struct grub_relocator *rel;
@ -51,7 +54,8 @@ grub_ntldr_boot (void)
.gs = 0,
.ss = 0,
.sp = 0x7c00,
.edx = edx
.edx = edx,
.a20 = 1
};
grub_video_set_mode ("text", 0, 0);
@ -110,6 +114,7 @@ grub_cmd_ntldr (grub_command_t cmd __attribute__ ((unused)),
grub_device_close (dev);
goto fail;
}
grub_chainloader_patch_bpb (bs, dev, edx);
}
if (dev)

6
grub-core/loader/i386/pc/plan9.c
View file

@ -47,7 +47,8 @@ static grub_uint32_t eip = 0xffffffff;
static const struct grub_arg_option options[] =
{
{"map", 'm', GRUB_ARG_OPTION_REPEATABLE,
N_("Override guessed mapping of Plan9 devices."), "GRUBDEVICE=PLAN9DEVICE",
N_("Override guessed mapping of Plan9 devices."),
N_("GRUBDEVICE=PLAN9DEVICE"),
ARG_TYPE_STRING},
{0, 0, 0, 0, 0, 0}
};
@ -77,7 +78,8 @@ grub_plan9_boot (void)
.edi = 0,
.esp = 0,
.ebp = 0,
.esi = 0
.esi = 0,
.a20 = 1
};
grub_video_set_mode ("text", 0, 0);