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16 Commits

Author SHA1 Message Date
Vladimir Serbinenko
3635094bf4 .org simplification 2013-12-24 02:48:31 +01:00
Vladimir Serbinenko
aeebec13ab Fix .org 2013-12-24 02:31:44 +01:00
Vladimir Serbinenko
3863ea6088 Replace .= with .org 2013-12-24 01:22:27 +01:00
Vladimir Serbinenko
0290aa8596 Check for .code16 support 2013-12-24 01:17:34 +01:00
Vladimir Serbinenko
09f5da1df6 Remove addr32 2013-12-24 01:11:32 +01:00
Vladimir Serbinenko
002ba123eb Remove useless addr32 2013-12-24 00:47:58 +01:00
Vladimir Serbinenko
a7831929d3 remove data32 2013-12-24 00:44:07 +01:00
Vladimir Serbinenko
2cbee7340c Merge branch 'master' into phcoder/scratch
Conflicts:
	grub-core/kern/arm/cache_armv6.S
	grub-core/kern/uboot/init.c
	include/grub/arm/system.h
2013-12-24 00:33:47 +01:00
Vladimir Serbinenko
850da8e056 dmraid 2013-12-24 00:32:40 +01:00
Colin Watson
f9fa053b69 mkconfig fix by Colin 2013-12-24 00:32:20 +01:00
Vladimir Serbinenko
2f1fd54c38 Skip apple ghosts 2013-12-24 00:05:22 +01:00
Vladimir Serbinenko
df056a2788 Gain more info about vendor path 2013-12-23 22:45:56 +01:00
Vladimir Serbinenko
1d83f4d467 Merge branch 'master' into phcoder/scratch 2013-12-23 04:16:55 +01:00
Vladimir Serbinenko
b2b8ed7032 ARM cache 2013-12-23 04:14:24 +01:00
Vladimir Serbinenko
4b03082fa9 EFI debug 2013-12-22 23:15:43 +01:00
Vladimir Serbinenko
d5edef1a77 Half boot time on pi when using standalone by using greffs 2013-12-22 21:17:54 +01:00
40 changed files with 714 additions and 449 deletions

View File

@@ -119,6 +119,7 @@ library = {
common = grub-core/fs/sfs.c;
common = grub-core/fs/squash4.c;
common = grub-core/fs/tar.c;
common = grub-core/fs/greffs.c;
common = grub-core/fs/udf.c;
common = grub-core/fs/ufs2.c;
common = grub-core/fs/ufs.c;

View File

@@ -210,80 +210,6 @@ fi
])
dnl Mass confusion!
dnl Older versions of GAS interpret `.code16' to mean ``generate 32-bit
dnl instructions, but implicitly insert addr32 and data32 bytes so
dnl that the code works in real mode''.
dnl
dnl Newer versions of GAS interpret `.code16' to mean ``generate 16-bit
dnl instructions,'' which seems right. This requires the programmer
dnl to explicitly insert addr32 and data32 instructions when they want
dnl them.
dnl
dnl We only support the newer versions, because the old versions cause
dnl major pain, by requiring manual assembly to get 16-bit instructions into
dnl asm files.
AC_DEFUN([grub_I386_ASM_ADDR32],
[AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([grub_I386_ASM_PREFIX_REQUIREMENT])
AC_MSG_CHECKING([for .code16 addr32 assembler support])
AC_CACHE_VAL(grub_cv_i386_asm_addr32,
[cat > conftest.s.in <<\EOF
.code16
l1: @ADDR32@ movb %al, l1
EOF
if test "x$grub_cv_i386_asm_prefix_requirement" = xyes; then
sed -e s/@ADDR32@/addr32/ < conftest.s.in > conftest.s
else
sed -e s/@ADDR32@/addr32\;/ < conftest.s.in > conftest.s
fi
if AC_TRY_COMMAND([${CC-cc} ${TARGET_CCASFLAGS} ${CFLAGS} -c conftest.s]) && test -s conftest.o; then
grub_cv_i386_asm_addr32=yes
else
grub_cv_i386_asm_addr32=no
fi
rm -f conftest*])
AC_MSG_RESULT([$grub_cv_i386_asm_addr32])])
dnl Later versions of GAS requires that addr32 and data32 prefixes
dnl appear in the same lines as the instructions they modify, while
dnl earlier versions requires that they appear in separate lines.
AC_DEFUN([grub_I386_ASM_PREFIX_REQUIREMENT],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(dnl
[whether addr32 must be in the same line as the instruction])
AC_CACHE_VAL(grub_cv_i386_asm_prefix_requirement,
[cat > conftest.s <<\EOF
.code16
l1: addr32 movb %al, l1
EOF
if AC_TRY_COMMAND([${CC-cc} ${TARGET_CCASFLAGS} ${CFLAGS} -c conftest.s]) && test -s conftest.o; then
grub_cv_i386_asm_prefix_requirement=yes
else
grub_cv_i386_asm_prefix_requirement=no
fi
rm -f conftest*])
if test "x$grub_cv_i386_asm_prefix_requirement" = xyes; then
grub_tmp_addr32="addr32"
grub_tmp_data32="data32"
else
grub_tmp_addr32="addr32;"
grub_tmp_data32="data32;"
fi
ADDR32=$grub_tmp_addr32
DATA32=$grub_tmp_data32
AC_MSG_RESULT([$grub_cv_i386_asm_prefix_requirement])])
dnl Check what symbol is defined as a bss start symbol.
dnl Written by Michael Hohmoth and Yoshinori K. Okuji.
AC_DEFUN([grub_CHECK_BSS_START_SYMBOL],

View File

@@ -31,10 +31,6 @@
#define HAVE_FONT_SOURCE @HAVE_FONT_SOURCE@
/* Define if C symbols get an underscore after compilation. */
#define HAVE_ASM_USCORE @HAVE_ASM_USCORE@
/* Define it to \"addr32\" or \"addr32;\" to make GAS happy. */
#define ADDR32 @ADDR32@
/* Define it to \"data32\" or \"data32;\" to make GAS happy. */
#define DATA32 @DATA32@
/* Define it to one of __bss_start, edata and _edata. */
#define BSS_START_SYMBOL @BSS_START_SYMBOL@
/* Define it to either end or _end. */

View File

@@ -538,12 +538,33 @@ AC_COMPILE_IFELSE(
# on arm clang doesn't support .arch directive
# on mips clang doesn't support privilegied instructions, doubleword store/load
# and crashes with hand-written assembly
if test "x$grub_cv_cc_target_clang" = xyes && ( test "x$target_cpu" = xi386 \
|| test "x$target_cpu" = xx86_64 || test "x$target_cpu" = xarm \
if test "x$grub_cv_cc_target_clang" = xyes && ( test "x$target_cpu" = xarm \
|| test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ); then
TARGET_CCASFLAGS="$TARGET_CCASFLAGS -no-integrated-as"
fi
if test "x$grub_cv_cc_target_clang" = xyes && ( test "x$target_cpu" = xi386 \
|| test "x$target_cpu" = xx86_64 ); then
AC_CACHE_CHECK([if clang can handle .code16], [grub_cv_cc_target_clang_code16]
[
CFLAGS="$TARGET_CCASFLAGS"
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [[
asm volatile (".code16\n"
"xorw %ax, %ax\n"
#ifdef __x86_64__
".code64\n"
#else
".code32\n"
#endif
);
]])],
[grub_cv_cc_target_clang_code16=yes], [grub_cv_cc_target_clang_code16=no])])
if test x$grub_cv_cc_target_clang_code16 = xno ; then
TARGET_CCASFLAGS="$TARGET_CCASFLAGS -no-integrated-as"
fi
fi
if test "x$grub_cv_cc_target_clang" = xyes && test "x$target_cpu" = xpowerpc; then
AC_CACHE_CHECK([if clang can handle ame instruction], [grub_cv_cc_target_clang_ame]
[
@@ -1046,8 +1067,6 @@ if test "x$target_cpu" = xi386; then
grub_CHECK_END_SYMBOL
fi
CFLAGS="$TARGET_CFLAGS"
grub_I386_ASM_PREFIX_REQUIREMENT
grub_I386_ASM_ADDR32
fi
grub_PROG_NM_WORKS
@@ -1568,8 +1587,6 @@ AS_IF([test x$target_cpu = xi386 -a x$platform = xqemu],
[AC_SUBST([GRUB_BOOT_MACHINE_LINK_ADDR], 0xffe00)])
AC_SUBST(HAVE_ASM_USCORE)
AC_SUBST(ADDR32)
AC_SUBST(DATA32)
AC_SUBST(BSS_START_SYMBOL)
AC_SUBST(END_SYMBOL)
AC_SUBST(PACKAGE)

View File

@@ -1399,6 +1399,11 @@ module = {
common = fs/tar.c;
};
module = {
name = greffs;
common = fs/greffs.c;
};
module = {
name = udf;
common = fs/udf.c;

View File

@@ -165,8 +165,8 @@ start:
* this area.
*/
. = _start + GRUB_BOOT_MACHINE_BPB_START
. = _start + 4
.org GRUB_BOOT_MACHINE_BPB_START
.org 4
#endif
#ifdef HYBRID_BOOT
floppy
@@ -174,7 +174,7 @@ start:
scratch
#endif
. = _start + GRUB_BOOT_MACHINE_BPB_END
.org GRUB_BOOT_MACHINE_BPB_END
/*
* End of BIOS parameter block.
*/
@@ -183,14 +183,14 @@ kernel_address:
.word GRUB_BOOT_MACHINE_KERNEL_ADDR
#ifndef HYBRID_BOOT
. = _start + GRUB_BOOT_MACHINE_KERNEL_SECTOR
.org GRUB_BOOT_MACHINE_KERNEL_SECTOR
kernel_sector:
.long 1
kernel_sector_high:
.long 0
#endif
. = _start + GRUB_BOOT_MACHINE_BOOT_DRIVE
.org GRUB_BOOT_MACHINE_BOOT_DRIVE
boot_drive:
.byte 0xff /* the disk to load kernel from */
/* 0xff means use the boot drive */
@@ -208,7 +208,7 @@ LOCAL(after_BPB):
* possible boot drive. If GRUB is installed into a floppy,
* this does nothing (only jump).
*/
. = _start + GRUB_BOOT_MACHINE_DRIVE_CHECK
.org GRUB_BOOT_MACHINE_DRIVE_CHECK
boot_drive_check:
jmp 3f /* grub-setup may overwrite this jump */
testb $0x80, %dl
@@ -511,13 +511,13 @@ LOCAL(message):
*/
#ifdef HYBRID_BOOT
. = _start + 0x1b0
.org 0x1b0
kernel_sector:
.long 1
kernel_sector_high:
.long 0
#endif
. = _start + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC
.org GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC
nt_magic:
.long 0
.word 0
@@ -528,7 +528,7 @@ nt_magic:
* sneaky, huh?
*/
. = _start + GRUB_BOOT_MACHINE_PART_START
.org GRUB_BOOT_MACHINE_PART_START
#ifndef HYBRID_BOOT
floppy
@@ -536,7 +536,7 @@ nt_magic:
scratch
#endif
. = _start + GRUB_BOOT_MACHINE_PART_END
.org GRUB_BOOT_MACHINE_PART_END
/* the last 2 bytes in the sector 0 contain the signature */
.word GRUB_BOOT_MACHINE_SIGNATURE

View File

@@ -43,7 +43,7 @@ _start:
LOCAL(next):
jmp 1f
. = start + 8
.org 8
bi_pvd:
.long 0 /* LBA of primary volume descriptor. */
@@ -168,6 +168,6 @@ err_noboot_msg:
err_cdfail_msg:
.ascii "cdrom read fails\0"
. = start + 0x7FF
.org 0x7FF
.byte 0

View File

@@ -362,7 +362,7 @@ LOCAL(message):
.word 0
.word 0
. = _start + 0x200 - GRUB_BOOT_MACHINE_LIST_SIZE
.org 0x200 - GRUB_BOOT_MACHINE_LIST_SIZE
LOCAL(firstlist): /* this label has to be before the first list entry!!! */
/* fill the first data listing with the default */
blocklist_default_start:

View File

@@ -41,7 +41,7 @@ data_start:
xorl %ebp, %ebp
jmp LOCAL(linux_next)
. = data_start + 0x1F1
.org 0x1F1
setup_sects:
.byte CODE_SECTORS
@@ -292,4 +292,4 @@ LOCAL(fail):
err_int15_msg:
.ascii "move memory fails\0"
. = _start + CODE_SECTORS * 512
.org (CODE_SECTORS + 1) * 512

View File

@@ -38,5 +38,5 @@ start:
/* This region is a junk. Do you say that this is wasteful?
But I like that the memory layout of the body is consistent
among different kernels rather than scamping just for 1.5KB. */
. = _start + 0x8200 - 0x7C00 - 0x200 - 1
.org 0x8200 - 0x7C00 - 0x200 - 1
.byte 0

View File

@@ -50,23 +50,23 @@ LOCAL (base):
* This is a special data area.
*/
. = _start + GRUB_DECOMPRESSOR_MACHINE_COMPRESSED_SIZE
.org GRUB_DECOMPRESSOR_MACHINE_COMPRESSED_SIZE
LOCAL(compressed_size):
.long 0
. = _start + GRUB_DECOMPRESSOR_MACHINE_UNCOMPRESSED_SIZE
.org GRUB_DECOMPRESSOR_MACHINE_UNCOMPRESSED_SIZE
LOCAL(uncompressed_size):
.long 0
. = _start + GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY
.org GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY
reed_solomon_redundancy:
.long 0
. = _start + GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_LENGTH
.org GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_LENGTH
.short (LOCAL(reed_solomon_part) - _start)
/*
* This is the area for all of the special variables.
*/
. = _start + GRUB_DECOMPRESSOR_I386_PC_BOOT_DEVICE
.org GRUB_DECOMPRESSOR_I386_PC_BOOT_DEVICE
LOCAL(boot_dev):
.byte 0xFF, 0xFF, 0xFF
LOCAL(boot_drive):
@@ -89,13 +89,13 @@ LOCAL (codestart):
sti /* we're safe again */
/* save the boot drive */
ADDR32 movb %dl, LOCAL(boot_drive)
movb %dl, LOCAL(boot_drive)
/* reset disk system (%ah = 0) */
int $0x13
/* transition to protected mode */
DATA32 call real_to_prot
calll real_to_prot
/* The ".code32" directive takes GAS out of 16-bit mode. */
.code32
@@ -149,7 +149,7 @@ gate_a20_try_bios:
movw $0x2401, %ax
int $0x15
DATA32 call real_to_prot
calll real_to_prot
.code32
popl %ebp

View File

@@ -31,7 +31,7 @@ _start:
jmp 1f
. = _start + GRUB_BOOT_I386_QEMU_CORE_ENTRY_ADDR
.org GRUB_BOOT_I386_QEMU_CORE_ENTRY_ADDR
VARIABLE(grub_core_entry_addr)
.long 0
1:
@@ -48,7 +48,7 @@ VARIABLE(grub_core_entry_addr)
/* Transition to protected mode. We use pushl to force generation
of a flat return address. */
pushl $1f
DATA32 jmp real_to_prot
jmpl real_to_prot
.code32
/* Ensure A20 is enabled. We're in qemu, so control port A works
and there is no need to wait since there is no real logic, it's
@@ -66,9 +66,9 @@ VARIABLE(grub_core_entry_addr)
/* Intel, in its infinite wisdom, decided to put the i8086 entry point
*right here* and this is why we need this kludge. */
. = GRUB_BOOT_MACHINE_SIZE - 16
.org GRUB_BOOT_MACHINE_SIZE - 16
.code16
jmp _start
. = GRUB_BOOT_MACHINE_SIZE
.org GRUB_BOOT_MACHINE_SIZE

View File

@@ -162,7 +162,7 @@ retry_cs5536:
b continue
. = start + GRUB_CPU_LOONGSON_FLASH_TLB_REFILL - GRUB_CPU_LOONGSON_FLASH_START
.org GRUB_CPU_LOONGSON_FLASH_TLB_REFILL - GRUB_CPU_LOONGSON_FLASH_START
tlb_refill:
mfc0 $s1, GRUB_CPU_LOONGSON_COP0_EPC
mfc0 $s2, GRUB_CPU_LOONGSON_COP0_BADVADDR
@@ -196,13 +196,13 @@ tlb_refill:
b fatal
addiu $a0, $a0, %lo(unhandled_tlb_refill)
. = start + GRUB_CPU_LOONGSON_FLASH_CACHE_ERROR - GRUB_CPU_LOONGSON_FLASH_START
.org GRUB_CPU_LOONGSON_FLASH_CACHE_ERROR - GRUB_CPU_LOONGSON_FLASH_START
cache_error:
lui $a0, %hi(unhandled_cache_error)
b fatal
addiu $a0, $a0, %lo(unhandled_cache_error)
. = start + GRUB_CPU_LOONGSON_FLASH_OTHER_EXCEPTION - GRUB_CPU_LOONGSON_FLASH_START
.org GRUB_CPU_LOONGSON_FLASH_OTHER_EXCEPTION - GRUB_CPU_LOONGSON_FLASH_START
other_exception:
mfc0 $s0, GRUB_CPU_LOONGSON_COP0_CAUSE
mfc0 $s1, GRUB_CPU_LOONGSON_COP0_EPC

View File

@@ -39,13 +39,13 @@ start:
bal codestart
nop
base:
. = _start + GRUB_DECOMPRESSOR_MACHINE_COMPRESSED_SIZE
.org GRUB_DECOMPRESSOR_MACHINE_COMPRESSED_SIZE
compressed_size:
.long 0
. = _start + GRUB_DECOMPRESSOR_MACHINE_UNCOMPRESSED_SIZE
.org GRUB_DECOMPRESSOR_MACHINE_UNCOMPRESSED_SIZE
uncompressed_size:
.long 0
. = _start + GRUB_DECOMPRESSOR_MACHINE_UNCOMPRESSED_ADDR
.org GRUB_DECOMPRESSOR_MACHINE_UNCOMPRESSED_ADDR
uncompressed_addr:
.long 0
codestart:

View File

@@ -41,9 +41,9 @@ pic_base:
* After loading in that block we will execute it by jumping to the
* load address plus the size of the prepended A.OUT header (32 bytes).
*/
. = _start + GRUB_BOOT_MACHINE_BOOT_DEVPATH
.org GRUB_BOOT_MACHINE_BOOT_DEVPATH
boot_path:
. = _start + GRUB_BOOT_MACHINE_KERNEL_BYTE
.org GRUB_BOOT_MACHINE_KERNEL_BYTE
boot_path_end:
kernel_byte: .xword (2 << 9)
kernel_address: .word GRUB_BOOT_MACHINE_KERNEL_ADDR
@@ -52,7 +52,7 @@ kernel_address: .word GRUB_BOOT_MACHINE_KERNEL_ADDR
#define boot_path_end (_start + 1024)
#include <grub/offsets.h>
. = _start + 8
.org 8
kernel_byte: .xword (2 << 9)
kernel_size: .word 512
kernel_address: .word GRUB_BOOT_SPARC64_IEEE1275_IMAGE_ADDRESS
@@ -224,7 +224,7 @@ bootpath_known:
#else
nop
#endif
. = _start + GRUB_BOOT_MACHINE_CODE_END
.org GRUB_BOOT_MACHINE_CODE_END
/* the last 4 bytes in the sector 0 contain the signature */
.word GRUB_BOOT_MACHINE_SIGNATURE

View File

@@ -136,7 +136,7 @@ lastlist:
.word 0
.word 0
. = _start + (0x200 - GRUB_BOOT_SPARC64_IEEE1275_LIST_SIZE)
.org (0x200 - GRUB_BOOT_SPARC64_IEEE1275_LIST_SIZE)
blocklist_default_start:
.word 0
.word 2

View File

@@ -333,6 +333,21 @@ name_devices (struct grub_efidisk_data *devices)
if (! dp)
continue;
/* Ghosts proudly presented by Apple. */
if (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE
&& GRUB_EFI_DEVICE_PATH_SUBTYPE (dp)
== GRUB_EFI_VENDOR_MEDIA_DEVICE_PATH_SUBTYPE)
{
grub_efi_vendor_device_path_t *vendor = (grub_efi_vendor_device_path_t *) dp;
const struct grub_efi_guid apple = GRUB_EFI_VENDOR_APPLE_GUID;
if (vendor->header.length == sizeof (*vendor)
&& grub_memcmp (&vendor->vendor_guid, &apple,
sizeof (vendor->vendor_guid)) == 0
&& find_parent_device (devices, d))
continue;
}
m = d->block_io->media;
if (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_ACPI_DEVICE_PATH_TYPE
&& GRUB_EFI_DEVICE_PATH_SUBTYPE (dp)
@@ -654,6 +669,7 @@ grub_efidisk_get_device_handle (grub_disk_t disk)
case 'h':
/* If this is the whole disk, just return its own data. */
grub_printf ("parent handle = %p\n", d->handle);
if (! disk->partition)
return d->handle;
@@ -664,13 +680,24 @@ grub_efidisk_get_device_handle (grub_disk_t disk)
struct grub_efidisk_data *c;
devices = make_devices ();
FOR_CHILDREN (c, devices)
grub_efi_print_device_path (d->device_path);
for (c = devices; c; c = c->next)
{
grub_efi_hard_drive_device_path_t *hd;
hd = (grub_efi_hard_drive_device_path_t *) c->last_device_path;
if ((GRUB_EFI_DEVICE_PATH_TYPE (c->last_device_path)
grub_efi_print_device_path (c->device_path);
grub_printf ("part %d = %x, %x, %x, %x, %x, %x\n",
is_child (c, d),
(int) GRUB_EFI_DEVICE_PATH_TYPE (c->last_device_path),
(int) GRUB_EFI_DEVICE_PATH_SUBTYPE (c->last_device_path),
(int) hd->partition_start, (int) hd->partition_size,
(int) grub_partition_get_start (disk->partition),
(int) grub_partition_get_len (disk->partition));
if (is_child (c, d)
&& (GRUB_EFI_DEVICE_PATH_TYPE (c->last_device_path)
== GRUB_EFI_MEDIA_DEVICE_PATH_TYPE)
&& (GRUB_EFI_DEVICE_PATH_SUBTYPE (c->last_device_path)
== GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE)

314
grub-core/fs/greffs.c Normal file
View File

@@ -0,0 +1,314 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 Free Software Foundation, Inc.
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/archelp.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/dl.h>
#include <grub/i18n.h>
#include <grub/greffs.h>
GRUB_MOD_LICENSE ("GPLv3+");
struct grub_greffs_data
{
grub_uint32_t dofs;
};
static grub_err_t
get_string (grub_disk_t disk,
const struct grub_greffs_header *head,
grub_uint32_t fn,
char **buf, grub_size_t *size)
{
grub_uint32_t desc[2];
grub_size_t read_size;
if (grub_disk_read (disk, 0,
grub_cpu_to_le32 (head->string_ptrs_offset)
+ fn * sizeof (desc[0]), sizeof (desc), &desc))
return grub_errno;
read_size = desc[1] - desc[0];
if (*size < read_size + 1)
{
grub_free (*buf);
*size = (read_size + 4) * 2;
*buf = grub_malloc (*size);
if (!*buf)
{
*size = 0;
return grub_errno;
}
}
if (grub_disk_read (disk, 0, desc[0], read_size, *buf))
return grub_errno;
(*buf)[read_size] = '\0';
return GRUB_ERR_NONE;
}
static grub_err_t
find_file (grub_disk_t disk,
struct grub_greffs_header *head,
const char *name_in, grub_uint32_t *f, int exact)
{
grub_uint32_t num_files, cur_file = 0;
int i;
char *buf = NULL;
grub_size_t buf_size = 0;
grub_err_t err;
num_files = grub_le_to_cpu32 (head->nfiles);
for (i = 31; i >= 0; i--)
{
int cmp;
if ((cur_file | (1 << i)) > num_files)
continue;
err = get_string (disk, head, (cur_file | (1 << i)) - 1, &buf, &buf_size);
if (err)
{
grub_free (buf);
return err;
}
cmp = grub_strcmp (buf, name_in);
if (cmp <= 0)
cur_file |= (1 << i);
if (cmp == 0)
{
grub_free (buf);
*f = cur_file - 1;
return GRUB_ERR_NONE;
}
}
grub_free (buf);
if (!exact)
{
*f = cur_file;
return GRUB_ERR_NONE;
}
return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"),
name_in);
}
static char *
canonicalize (const char *name_in, int make_dir)
{
const char *iptr;
char *out, *optr;
out = grub_malloc (grub_strlen (name_in) + 2);
if (!out)
return NULL;
for (iptr = name_in, optr = out; *iptr; )
{
while (*iptr == '/')
iptr++;
if (iptr[0] == '.' && (iptr[1] == '/' || iptr[1] == 0))
{
iptr += 2;
continue;
}
if (iptr[0] == '.' && iptr[1] == '.' && (iptr[2] == '/' || iptr[2] == 0))
{
iptr += 3;
if (optr == out)
continue;
for (optr -= 2; optr >= out && *optr != '/'; optr--);
optr++;
continue;
}
while (*iptr && *iptr != '/')
*optr++ = *iptr++;
if (*iptr)
*optr++ = *iptr++;
else if (make_dir && optr != out)
*optr++ = '/';
}
*optr = 0;
return out;
}
static grub_err_t
grub_greffs_dir (grub_device_t device, const char *path_in,
grub_fs_dir_hook_t hook, void *hook_data)
{
grub_err_t err;
grub_uint32_t cur_file, num_files;
char *buf = 0;
grub_size_t buf_size = 0;
char *can;
grub_size_t len;
struct grub_greffs_header head;
if (grub_disk_read (device->disk, 0, 0, sizeof (head), &head))
return grub_error (GRUB_ERR_BAD_FS, "not a greffs filesystem");
if (grub_memcmp (head.magic, GRUB_GREFFS_MAGIC, sizeof (head.magic)) != 0)
return grub_error (GRUB_ERR_BAD_FS, "not a greffs filesystem");
can = canonicalize (path_in, 1);
if (!can)
return grub_errno;
if (can[0] == '\0')
cur_file = 0;
else
{
err = find_file (device->disk, &head, can, &cur_file, 0);
if (err)
goto fail;
}
num_files = grub_le_to_cpu32 (head.nfiles);
len = grub_strlen (can);
while (cur_file < num_files)
{
char *p, *n;
struct grub_dirhook_info info;
err = get_string (device->disk, &head, cur_file, &buf, &buf_size);
if (err)
goto fail;
if (grub_memcmp (can, buf, len) != 0)
break;
grub_memset (&info, 0, sizeof (info));
n = buf + len;
while (*n == '/')
n++;
p = grub_strchr (n, '/');
if (p)
*p = 0;
info.dir = (p != NULL);
if (hook (n, &info, hook_data))
goto fail;
if (!p)
cur_file++;
else
{
*p = '/' + 1;
p[1] = '\0';
err = find_file (device->disk, &head, buf, &cur_file, 0);
if (err)
goto fail;
}
}
fail:
grub_free (buf);
grub_free (can);
return grub_errno;
}
static grub_err_t
grub_greffs_open (grub_file_t file, const char *name_in)
{
struct grub_greffs_header head;
struct grub_greffs_data *data;
struct grub_greffs_inode inode;
grub_err_t err;
grub_uint32_t cur_file;
char *can;
if (grub_disk_read (file->device->disk, 0, 0, sizeof (head), &head))
return grub_error (GRUB_ERR_BAD_FS, "not a greffs filesystem");
if (grub_memcmp (head.magic, GRUB_GREFFS_MAGIC, sizeof (head.magic)) != 0)
return grub_error (GRUB_ERR_BAD_FS, "not a greffs filesystem");
can = canonicalize (name_in, 0);
if (!can)
return grub_errno;
err = find_file (file->device->disk, &head, can, &cur_file, 1);
grub_free (can);
if (err)
return err;
data = grub_malloc (sizeof (*data));
if (!data)
return grub_errno;
if (grub_disk_read (file->device->disk,
0, grub_le_to_cpu32 (head.inodes_offset)
+ sizeof (inode) * cur_file, sizeof (inode), &inode))
return grub_error (GRUB_ERR_BAD_FS, "not a greffs filesystem");
data->dofs = grub_cpu_to_le32 (inode.start);
file->size = grub_cpu_to_le32 (inode.size);
file->data = data;
return GRUB_ERR_NONE;
}
static grub_ssize_t
grub_greffs_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_greffs_data *data;
grub_ssize_t ret;
data = file->data;
file->device->disk->read_hook = file->read_hook;
file->device->disk->read_hook_data = file->read_hook_data;
ret = (grub_disk_read (file->device->disk, 0, data->dofs + file->offset,
len, buf)) ? -1 : (grub_ssize_t) len;
file->device->disk->read_hook = 0;
return ret;
}
static grub_err_t
grub_greffs_close (grub_file_t file)
{
struct grub_greffs_data *data;
data = file->data;
grub_free (data);
return grub_errno;
}
static struct grub_fs grub_greffs_fs = {
.name = "greffs",
.dir = grub_greffs_dir,
.open = grub_greffs_open,
.read = grub_greffs_read,
.close = grub_greffs_close,
#ifdef GRUB_UTIL
.reserved_first_sector = 0,
.blocklist_install = 0,
#endif
};
GRUB_MOD_INIT (greffs)
{
grub_fs_register (&grub_greffs_fs);
}
GRUB_MOD_FINI (greffs)
{
grub_fs_unregister (&grub_greffs_fs);
}

View File

@@ -51,7 +51,7 @@ FUNCTION(_start)
b codestart
@ Size of final image integrated module blob - set by grub-mkimage
.org _start + GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
.org GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
VARIABLE(grub_total_module_size)
.long 0

View File

@@ -385,6 +385,34 @@ grub_efi_get_device_path (grub_efi_handle_t handle)
GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
}
static void
dump_vendor_path (const char *type, grub_efi_vendor_device_path_t *vendor)
{
grub_uint32_t vendor_data_len = vendor->header.length - sizeof (*vendor);
grub_printf ("/%sVendor(%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)[%x: ",
type,
(unsigned) vendor->vendor_guid.data1,
(unsigned) vendor->vendor_guid.data2,
(unsigned) vendor->vendor_guid.data3,
(unsigned) vendor->vendor_guid.data4[0],
(unsigned) vendor->vendor_guid.data4[1],
(unsigned) vendor->vendor_guid.data4[2],
(unsigned) vendor->vendor_guid.data4[3],
(unsigned) vendor->vendor_guid.data4[4],
(unsigned) vendor->vendor_guid.data4[5],
(unsigned) vendor->vendor_guid.data4[6],
(unsigned) vendor->vendor_guid.data4[7],
vendor_data_len);
if (vendor->header.length > sizeof (*vendor))
{
grub_uint32_t i;
for (i = 0; i < vendor_data_len; i++)
grub_printf ("%02x ", vendor->vendor_defined_data[i]);
}
grub_printf ("]");
}
/* Print the chain of Device Path nodes. This is mainly for debugging. */
void
grub_efi_print_device_path (grub_efi_device_path_t *dp)
@@ -444,21 +472,8 @@ grub_efi_print_device_path (grub_efi_device_path_t *dp)
}
break;
case GRUB_EFI_VENDOR_DEVICE_PATH_SUBTYPE:
{
grub_efi_vendor_device_path_t *vendor = (grub_efi_vendor_device_path_t *) dp;
grub_printf ("/Vendor(%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)",
(unsigned) vendor->vendor_guid.data1,
(unsigned) vendor->vendor_guid.data2,
(unsigned) vendor->vendor_guid.data3,
(unsigned) vendor->vendor_guid.data4[0],
(unsigned) vendor->vendor_guid.data4[1],
(unsigned) vendor->vendor_guid.data4[2],
(unsigned) vendor->vendor_guid.data4[3],
(unsigned) vendor->vendor_guid.data4[4],
(unsigned) vendor->vendor_guid.data4[5],
(unsigned) vendor->vendor_guid.data4[6],
(unsigned) vendor->vendor_guid.data4[7]);
}
dump_vendor_path ("Hardware",
(grub_efi_vendor_device_path_t *) dp);
break;
case GRUB_EFI_CONTROLLER_DEVICE_PATH_SUBTYPE:
{
@@ -663,22 +678,8 @@ grub_efi_print_device_path (grub_efi_device_path_t *dp)
}
break;
case GRUB_EFI_VENDOR_MESSAGING_DEVICE_PATH_SUBTYPE:
{
grub_efi_vendor_messaging_device_path_t *vendor
= (grub_efi_vendor_messaging_device_path_t *) dp;
grub_printf ("/Vendor(%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)",
(unsigned) vendor->vendor_guid.data1,
(unsigned) vendor->vendor_guid.data2,
(unsigned) vendor->vendor_guid.data3,
(unsigned) vendor->vendor_guid.data4[0],
(unsigned) vendor->vendor_guid.data4[1],
(unsigned) vendor->vendor_guid.data4[2],
(unsigned) vendor->vendor_guid.data4[3],
(unsigned) vendor->vendor_guid.data4[4],
(unsigned) vendor->vendor_guid.data4[5],
(unsigned) vendor->vendor_guid.data4[6],
(unsigned) vendor->vendor_guid.data4[7]);
}
dump_vendor_path ("Messaging",
(grub_efi_vendor_device_path_t *) dp);
break;
default:
grub_printf ("/UnknownMessaging(%x)", (unsigned) subtype);
@@ -719,22 +720,8 @@ grub_efi_print_device_path (grub_efi_device_path_t *dp)
}
break;
case GRUB_EFI_VENDOR_MEDIA_DEVICE_PATH_SUBTYPE:
{
grub_efi_vendor_device_path_t *vendor = (grub_efi_vendor_device_path_t *) dp;
grub_printf ("/Vendor(%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)",
(unsigned) vendor->vendor_guid.data1,
(unsigned) vendor->vendor_guid.data2,
(unsigned) vendor->vendor_guid.data3,
(unsigned) vendor->vendor_guid.data4[0],
(unsigned) vendor->vendor_guid.data4[1],
(unsigned) vendor->vendor_guid.data4[2],
(unsigned) vendor->vendor_guid.data4[3],
(unsigned) vendor->vendor_guid.data4[4],
(unsigned) vendor->vendor_guid.data4[5],
(unsigned) vendor->vendor_guid.data4[6],
(unsigned) vendor->vendor_guid.data4[7]);
}
dump_vendor_path ("Media",
(grub_efi_vendor_device_path_t *) dp);
break;
case GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE:
{

View File

@@ -67,6 +67,8 @@ grub_file_open (const char *name)
const char *file_name;
grub_file_filter_id_t filter;
grub_boot_time ("Opening '%s'", name);
device_name = grub_file_get_device_name (name);
if (grub_errno)
goto fail;

View File

@@ -135,7 +135,7 @@ LOCAL(prot_to_real_addr):
.macro REAL_TO_PROT
movl LOCAL(real_to_prot_addr), %eax
DATA32 call *%ax
calll *%eax
.endm
/*

View File

@@ -28,7 +28,7 @@
_start:
jmp codestart
. = _start + GRUB_KERNEL_I386_QEMU_CORE_ENTRY_ADDR
.org GRUB_KERNEL_I386_QEMU_CORE_ENTRY_ADDR
VARIABLE(grub_core_entry_addr)
.long 0

View File

@@ -54,7 +54,7 @@ protstack:
.endm
.macro REAL_TO_PROT
DATA32 call real_to_prot
calll real_to_prot
.endm
/*
@@ -137,7 +137,7 @@ real_to_prot:
/* load the GDT register */
xorw %ax, %ax
movw %ax, %ds
DATA32 ADDR32 lgdt gdtdesc
lgdtl gdtdesc
/* turn on protected mode */
movl %cr0, %eax
@@ -145,7 +145,7 @@ real_to_prot:
movl %eax, %cr0
/* jump to relocation, flush prefetch queue, and reload %cs */
DATA32 ljmp $GRUB_MEMORY_MACHINE_PROT_MODE_CSEG, $protcseg
ljmpl $GRUB_MEMORY_MACHINE_PROT_MODE_CSEG, $protcseg
.code32
protcseg:
@@ -237,7 +237,7 @@ tmpcseg:
movl %eax, %cr0
/* flush prefetch queue, reload %cs */
DATA32 ljmp $0, $realcseg
ljmpl $0, $realcseg
realcseg:
/* we are in real mode now
@@ -258,6 +258,6 @@ realcseg:
#endif
/* return on new stack! */
DATA32 ret
retl
.code32

View File

@@ -36,7 +36,7 @@ start:
bal cont
nop
. = _start + GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
.org GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
VARIABLE(grub_total_modules_size)
.long 0

View File

@@ -27,7 +27,7 @@ _start:
ba codestart
mov %o4, %o0
. = EXT_C(_start) + GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
.org GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
VARIABLE(grub_total_module_size)
.word 0

View File

@@ -89,8 +89,7 @@ struct piwg_full_device_path
.subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE, \
.length = sizeof (struct grub_efi_piwg_device_path) \
}, \
.guid = {0x2B0585EB, 0xD8B8, 0x49A9, {0x8B, 0x8C, 0xE2, 0x1B, \
0x01, 0xAE, 0xF2, 0xB7}} \
.guid = GRUB_EFI_VENDOR_APPLE_GUID \
}, \
.end = \
{ \

View File

@@ -249,7 +249,8 @@ grub_cmd_chainloader (grub_command_t cmd __attribute__ ((unused)),
if (! dp)
{
grub_error (GRUB_ERR_BAD_DEVICE, "not a valid root device");
grub_error (GRUB_ERR_BAD_DEVICE, "not a valid root device (%p, %p)",
dev_handle, dp);
goto fail;
}

View File

@@ -9,8 +9,6 @@ grub_have_font_source=@HAVE_FONT_SOURCE@
# Autodetected config
grub_have_asm_uscore=@HAVE_ASM_USCORE@
grub_i8086_addr32="@ADDR32@"
grub_i8086_data32="@DATA32@"
grub_bss_start_symbol="@BSS_START_SYMBOL@"
grub_end_symbol="@END_SYMBOL@"

View File

@@ -230,12 +230,18 @@ read_lists (const char *val)
{
if (! grub_no_modules)
{
grub_boot_time ("Reading commands");
read_command_list (val);
grub_boot_time ("Reading filesystems");
read_fs_list (val);
grub_boot_time ("Reading crypto");
read_crypto_list (val);
grub_boot_time ("Reading terminal");
read_terminal_list (val);
}
grub_boot_time ("Reading gettext");
grub_gettext_reread_prefix (val);
grub_boot_time ("Lists reread");
}
static char *

View File

@@ -198,124 +198,17 @@ char *
grub_util_devmapper_part_to_disk (struct stat *st,
int *is_part, const char *path)
{
struct dm_tree *tree;
uint32_t maj, min;
struct dm_tree_node *node = NULL, *child;
void *handle;
const char *node_uuid, *mapper_name = NULL, *child_uuid, *child_name;
int major, minor;
tree = dm_tree_create ();
if (! tree)
if (grub_util_get_dm_node_linear_info (st->st_rdev,
&major, &minor, 0))
{
grub_util_info ("dm_tree_create failed");
goto devmapper_out;
*is_part = 1;
return grub_find_device ("/dev",
(major << 8) | minor);
}
maj = major (st->st_rdev);
min = minor (st->st_rdev);
if (! dm_tree_add_dev (tree, maj, min))
{
grub_util_info ("dm_tree_add_dev failed");
goto devmapper_out;
}
node = dm_tree_find_node (tree, maj, min);
if (! node)
{
grub_util_info ("dm_tree_find_node failed");
goto devmapper_out;
}
reiterate:
node_uuid = dm_tree_node_get_uuid (node);
if (! node_uuid)
{
grub_util_info ("%s has no DM uuid", path);
goto devmapper_out;
}
if (strncmp (node_uuid, "LVM-", 4) == 0)
{
grub_util_info ("%s is an LVM", path);
goto devmapper_out;
}
if (strncmp (node_uuid, "mpath-", 6) == 0)
{
/* Multipath partitions have partN-mpath-* UUIDs, and are
linear mappings so are handled by
grub_util_get_dm_node_linear_info. Multipath disks are not
linear mappings and must be handled specially. */
grub_util_info ("%s is a multipath disk", path);
goto devmapper_out;
}
if (strncmp (node_uuid, "DMRAID-", 7) != 0)
{
int major, minor;
const char *node_name;
grub_util_info ("%s is not DM-RAID", path);
if ((node_name = dm_tree_node_get_name (node))
&& grub_util_get_dm_node_linear_info (node_name,
&major, &minor, 0))
{
*is_part = 1;
if (tree)
dm_tree_free (tree);
char *ret = grub_find_device ("/dev",
(major << 8) | minor);
return ret;
}
goto devmapper_out;
}
handle = NULL;
/* Counter-intuitively, device-mapper refers to the disk-like
device containing a DM-RAID partition device as a "child" of
the partition device. */
child = dm_tree_next_child (&handle, node, 0);
if (! child)
{
grub_util_info ("%s has no DM children", path);
goto devmapper_out;
}
child_uuid = dm_tree_node_get_uuid (child);
if (! child_uuid)
{
grub_util_info ("%s child has no DM uuid", path);
goto devmapper_out;
}
else if (strncmp (child_uuid, "DMRAID-", 7) != 0)
{
grub_util_info ("%s child is not DM-RAID", path);
goto devmapper_out;
}
child_name = dm_tree_node_get_name (child);
if (! child_name)
{
grub_util_info ("%s child has no DM name", path);
goto devmapper_out;
}
mapper_name = child_name;
*is_part = 1;
node = child;
goto reiterate;
devmapper_out:
if (! mapper_name && node)
{
/* This is a DM-RAID disk, not a partition. */
mapper_name = dm_tree_node_get_name (node);
if (! mapper_name)
grub_util_info ("%s has no DM name", path);
}
char *ret;
if (mapper_name)
ret = xasprintf ("/dev/mapper/%s", mapper_name);
else
ret = NULL;
if (tree)
dm_tree_free (tree);
return ret;
*is_part = 0;
return xstrdup (path);
}
int

View File

@@ -83,7 +83,7 @@ grub_util_device_is_mapped (const char *dev)
}
int
grub_util_get_dm_node_linear_info (const char *dev,
grub_util_get_dm_node_linear_info (dev_t dev,
int *maj, int *min,
grub_disk_addr_t *st)
{
@@ -97,14 +97,16 @@ grub_util_get_dm_node_linear_info (const char *dev,
grub_disk_addr_t partstart = 0;
const char *node_uuid;
major = major (dev);
minor = minor (dev);
while (1)
{
dmt = dm_task_create(DM_DEVICE_TABLE);
if (!dmt)
break;
if (! (first ? dm_task_set_name (dmt, dev)
: dm_task_set_major_minor (dmt, major, minor, 0)))
if (! (dm_task_set_major_minor (dmt, major, minor, 0)))
{
dm_task_destroy (dmt);
break;
@@ -117,8 +119,7 @@ grub_util_get_dm_node_linear_info (const char *dev,
}
node_uuid = dm_task_get_uuid (dmt);
if (node_uuid && (strncmp (node_uuid, "LVM-", 4) == 0
|| strncmp (node_uuid, "mpath-", 6) == 0
|| strncmp (node_uuid, "DMRAID-", 7) == 0))
|| strncmp (node_uuid, "mpath-", 6) == 0))
{
dm_task_destroy (dmt);
break;
@@ -190,7 +191,7 @@ grub_util_device_is_mapped (const char *dev __attribute__ ((unused)))
}
int
grub_util_get_dm_node_linear_info (const char *dev __attribute__ ((unused)),
grub_util_get_dm_node_linear_info (dev_t dev __attribute__ ((unused)),
int *maj __attribute__ ((unused)),
int *min __attribute__ ((unused)),
grub_disk_addr_t *st __attribute__ ((unused)))

View File

@@ -288,6 +288,7 @@ grub_hostdisk_linux_find_partition (char *dev, grub_disk_addr_t sector)
{
grub_util_fd_t fd;
grub_disk_addr_t start;
struct stat st;
sprintf (p, format, i);
@@ -300,14 +301,16 @@ grub_hostdisk_linux_find_partition (char *dev, grub_disk_addr_t sector)
return 0;
}
missing = 0;
close (fd);
if (!grub_util_device_is_mapped (real_dev)
|| !grub_util_get_dm_node_linear_info (real_dev, 0, 0, &start))
if (fstat (fd, &st) < 0
|| !grub_util_device_is_mapped_stat (&st)
|| !grub_util_get_dm_node_linear_info (st.st_rdev, 0, 0, &start))
start = grub_util_find_partition_start_os (real_dev);
/* We don't care about errors here. */
grub_errno = GRUB_ERR_NONE;
close (fd);
if (start == sector)
{
struct linux_partition_cache *new_cache_item;

View File

@@ -46,5 +46,5 @@ message:
.ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
.byte 0
. = base + 510
.org 510
.short 0xaa55

View File

@@ -280,6 +280,12 @@
{ 0xb1b621d5, 0xf19c, 0x41a5, \
{ 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } \
}
#define GRUB_EFI_VENDOR_APPLE_GUID \
{ 0x2B0585EB, 0xD8B8, 0x49A9, \
{ 0x8B, 0x8C, 0xE2, 0x1B, 0x01, 0xAE, 0xF2, 0xB7 } \
}
struct grub_efi_sal_system_table
{
grub_uint32_t signature;
@@ -815,14 +821,6 @@ typedef struct grub_efi_uart_device_path grub_efi_uart_device_path_t;
#define GRUB_EFI_VENDOR_MESSAGING_DEVICE_PATH_SUBTYPE 10
struct grub_efi_vendor_messaging_device_path
{
grub_efi_device_path_t header;
grub_efi_packed_guid_t vendor_guid;
grub_efi_uint8_t vendor_defined_data[0];
} GRUB_PACKED;
typedef struct grub_efi_vendor_messaging_device_path grub_efi_vendor_messaging_device_path_t;
/* Media Device Path. */
#define GRUB_EFI_MEDIA_DEVICE_PATH_TYPE 4

View File

@@ -61,7 +61,7 @@ char *
grub_util_get_os_disk (const char *os_dev);
int
grub_util_get_dm_node_linear_info (const char *dev,
grub_util_get_dm_node_linear_info (dev_t dev,
int *maj, int *min,
grub_disk_addr_t *st);

55
include/grub/greffs.h Normal file
View File

@@ -0,0 +1,55 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 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_GREFFS_HEADER
#define GRUB_GREFFS_HEADER 1
#include <grub/types.h>
/*
Layout:
header
grub_uint32_t[] pointers to names
inodes
names
contents.
Everything is little-endian.
*/
struct grub_greffs_header
{
char magic[4];
#define GRUB_GREFFS_MAGIC "gref"
grub_uint32_t nfiles;
/* must be divisible by 4. */
grub_uint32_t inodes_offset;
/* must be divisible by 4. */
grub_uint32_t string_ptrs_offset;
};
struct grub_greffs_inode
{
grub_uint32_t start;
grub_uint32_t size;
grub_uint32_t mtime;
/* Currently always 0. If we ever need symlinks,
it could be added. */
grub_uint32_t type;
};
#endif

View File

@@ -77,10 +77,15 @@
grub_disk_addr_t
grub_util_find_partition_start (const char *dev)
{
#if GRUB_UTIL_FD_STAT_IS_FUNCTIONAL
struct stat st;
grub_disk_addr_t partition_start;
if (grub_util_device_is_mapped (dev)
&& grub_util_get_dm_node_linear_info (dev, 0, 0, &partition_start))
if (stat (dev, &st) >= 0
&& grub_util_device_is_mapped_stat (&st)
&& grub_util_get_dm_node_linear_info (st.st_rdev, 0, 0, &partition_start))
return partition_start;
#endif
return grub_util_find_partition_start_os (dev);
}

View File

@@ -283,7 +283,7 @@ for i in "${grub_mkconfig_dir}"/* ; do
echo "### BEGIN $i ($platform) ###"
case x$platform in
xx86)
echo "if [ x\"\$grub_platform\" != xxen \\( x\"\$grub_cpu\" = xi386 -o x\"\$grub_cpu\" = xx86_64 -o x\"\$grub_platform\" = x \\) ]; then" ;;
echo "if [ x\"\$grub_platform\" != xxen -a \\( x\"\$grub_cpu\" = xi386 -o x\"\$grub_cpu\" = xx86_64 -o x\"\$grub_platform\" = x \\) ]; then" ;;
xi386-xen-pae)
echo "if [ x\"\$grub_cpu-\$grub_platform\" = xi386-xen -o x\"\$grub_cpu-\$grub_platform\" = x- ]; then" ;;
xx86_64-xen)

View File

@@ -21,6 +21,7 @@
#include <grub/util/install.h>
#include <grub/util/misc.h>
#include <grub/emu/config.h>
#include <grub/greffs.h>
#include <string.h>
@@ -34,7 +35,6 @@ static char *output_image;
static char **files;
static int nfiles;
const struct grub_install_image_target_desc *format;
static FILE *memdisk;
enum
{
@@ -116,91 +116,56 @@ struct argp argp = {
NULL, help_filter, NULL
};
/* tar support */
#define MAGIC "ustar"
struct head
struct file_desc
{
char name[100];
char mode[8];
char uid[8];
char gid[8];
char size[12];
char mtime[12];
char chksum[8];
char typeflag;
char linkname[100];
char magic[6];
char version[2];
char uname[32];
char gname[32];
char devmajor[8];
char devminor[8];
char prefix[155];
char pad[12];
} GRUB_PACKED;
char *name;
char *source;
grub_size_t size;
grub_size_t mtime;
};
static struct file_desc *file_descs;
static size_t n_file_descs, alloc_file_descs;
static void
write_zeros (unsigned rsz)
static inline void
canonicalize (char *name)
{
char buf[512];
memset (buf, 0, 512);
fwrite (buf, 1, rsz, memdisk);
}
static void
write_pad (unsigned sz)
{
write_zeros ((~sz + 1) & 511);
}
static void
set_tar_value (char *field, grub_uint32_t val,
unsigned len)
{
unsigned i;
for (i = 0; i < len - 1; i++)
field[len - 2 - i] = '0' + ((val >> (3 * i)) & 7);
}
static void
compute_checksum (struct head *hd)
{
unsigned int chk = 0;
unsigned char *ptr;
memset (hd->chksum, ' ', 8);
for (ptr = (unsigned char *) hd; ptr < (unsigned char *) (hd + 1); ptr++)
chk += *ptr;
set_tar_value (hd->chksum, chk, 8);
char *iptr, *optr;
for (iptr = name, optr = name; *iptr; )
{
while (*iptr == '/')
iptr++;
if (iptr[0] == '.' && (iptr[1] == '/' || iptr[1] == 0))
{
iptr += 2;
continue;
}
if (iptr[0] == '.' && iptr[1] == '.' && (iptr[2] == '/' || iptr[2] == 0))
{
iptr += 3;
if (optr == name)
continue;
for (optr -= 2; optr >= name && *optr != '/'; optr--);
optr++;
continue;
}
while (*iptr && *iptr != '/')
*optr++ = *iptr++;
if (*iptr)
*optr++ = *iptr++;
}
*optr = 0;
}
static void
add_tar_file (const char *from,
const char *to)
{
char *tcn;
const char *iptr;
char *optr;
struct head hd;
grub_util_fd_t in;
ssize_t r;
grub_uint32_t mtime = 0;
grub_uint32_t size;
COMPILE_TIME_ASSERT (sizeof (hd) == 512);
size_t idx;
if (grub_util_is_special_file (from))
return;
mtime = grub_util_get_mtime (from);
optr = tcn = xmalloc (strlen (to) + 1);
for (iptr = to; *iptr == '/'; iptr++);
for (; *iptr; iptr++)
if (!(iptr[0] == '/' && iptr[1] == '/'))
*optr++ = *iptr;
*optr = '\0';
if (grub_util_is_directory (from))
{
grub_util_fd_dir_t d;
@@ -221,69 +186,138 @@ add_tar_file (const char *from,
free (fp);
}
grub_util_fd_closedir (d);
free (tcn);
return;
}
if (optr - tcn > 99)
idx = n_file_descs++;
if (idx >= alloc_file_descs)
{
memset (&hd, 0, sizeof (hd));
memcpy (hd.name, tcn, 99);
memcpy (hd.mode, "0000600", 7);
memcpy (hd.uid, "0001750", 7);
memcpy (hd.gid, "0001750", 7);
set_tar_value (hd.size, optr - tcn, 12);
set_tar_value (hd.mtime, mtime, 12);
hd.typeflag = 'L';
memcpy (hd.magic, "ustar ", 7);
memcpy (hd.uname, "grub", 4);
memcpy (hd.gname, "grub", 4);
compute_checksum (&hd);
fwrite (&hd, 1, sizeof (hd), memdisk);
fwrite (tcn, 1, optr - tcn, memdisk);
write_pad (optr - tcn);
alloc_file_descs = 2 * n_file_descs;
file_descs = xrealloc (file_descs, alloc_file_descs
* sizeof (file_descs[0]));
}
in = grub_util_fd_open (from, GRUB_UTIL_FD_O_RDONLY);
if (!GRUB_UTIL_FD_IS_VALID (in))
grub_util_error (_("cannot open `%s': %s"), from, grub_util_fd_strerror ());
file_descs[idx].name = xstrdup (to);
file_descs[idx].source = xstrdup (from);
canonicalize (file_descs[idx].name);
file_descs[idx].mtime = grub_util_get_mtime (from);
file_descs[idx].size = grub_util_get_fd_size (in, from, NULL);
grub_util_fd_close (in);
}
static int
filecmp (const void *p1, const void *p2)
{
const struct file_desc *a = p1, *b = p2;
/* Don't use strcmp, it's buggy on some systems. */
return grub_strcmp (a->name, b->name);
}
static void
write_memdisk (char *memdisk_img)
{
FILE *memdisk;
struct grub_greffs_header head;
struct grub_greffs_inode inode;
size_t total_strlen = 0, i;
size_t name_pad = 0;
grub_uint32_t file_offset;
qsort (file_descs, n_file_descs, sizeof (file_descs[0]), filecmp);
for (i = 0; i < n_file_descs; i++)
total_strlen += grub_strlen (file_descs[i].name);
name_pad = ALIGN_UP (total_strlen, 4) - total_strlen;
total_strlen += name_pad;
grub_memcpy (head.magic, GRUB_GREFFS_MAGIC, sizeof (head.magic));
head.nfiles = grub_cpu_to_le32 (n_file_descs);
head.inodes_offset = grub_cpu_to_le32 (sizeof (head)
+ sizeof (grub_uint32_t)
* (n_file_descs + 1));
head.string_ptrs_offset = grub_cpu_to_le32 (sizeof (head));
memdisk = grub_util_fopen (memdisk_img, "wb");
if (!memdisk)
grub_util_error (_("Can't create file: %s"), strerror (errno));
fwrite (&head, 1, sizeof (head), memdisk);
grub_uint32_t curname = sizeof (head) + sizeof (grub_uint32_t)
* (n_file_descs + 1) + sizeof (inode) * n_file_descs;
for (i = 0; i <= n_file_descs; i++)
{
grub_uint32_t curname_le = grub_cpu_to_le32 (curname);
fwrite (&curname_le, 1, sizeof (curname_le), memdisk);
if (i != n_file_descs)
curname += grub_strlen (file_descs[i].name);
}
file_offset = sizeof (head) + sizeof (grub_uint32_t)
* (n_file_descs + 1) + sizeof (inode) * n_file_descs + total_strlen;
for (i = 0; i < n_file_descs; i++)
{
inode.start = grub_cpu_to_le32 (file_offset);
inode.size = grub_cpu_to_le32 (file_descs[i].size);
inode.mtime = grub_cpu_to_le32 (file_descs[i].mtime);
inode.type = 0;
fwrite (&inode, 1, sizeof (inode), memdisk);
file_offset += file_descs[i].size;
}
for (i = 0; i < n_file_descs; i++)
fwrite (file_descs[i].name, 1, grub_strlen (file_descs[i].name), memdisk);
if (!grub_install_copy_buffer)
grub_install_copy_buffer = xmalloc (GRUB_INSTALL_COPY_BUFFER_SIZE);
size = grub_util_get_fd_size (in, from, NULL);
grub_memset (grub_install_copy_buffer, 0, 4);
fwrite (grub_install_copy_buffer, 1, name_pad, memdisk);
memset (&hd, 0, sizeof (hd));
memcpy (hd.name, tcn, optr - tcn < 99 ? optr - tcn : 99);
memcpy (hd.mode, "0000600", 7);
memcpy (hd.uid, "0001750", 7);
memcpy (hd.gid, "0001750", 7);
set_tar_value (hd.size, size, 12);
set_tar_value (hd.mtime, mtime, 12);
hd.typeflag = '0';
memcpy (hd.magic, "ustar ", 7);
memcpy (hd.uname, "grub", 4);
memcpy (hd.gname, "grub", 4);
compute_checksum (&hd);
fwrite (&hd, 1, sizeof (hd), memdisk);
while (1)
for (i = 0; i < n_file_descs; i++)
{
r = grub_util_fd_read (in, grub_install_copy_buffer, GRUB_INSTALL_COPY_BUFFER_SIZE);
if (r <= 0)
break;
fwrite (grub_install_copy_buffer, 1, r, memdisk);
}
grub_util_fd_close (in);
grub_util_fd_t in;
size_t remaining = file_descs[i].size;
in = grub_util_fd_open (file_descs[i].source, GRUB_UTIL_FD_O_RDONLY);
if (!GRUB_UTIL_FD_IS_VALID (in))
grub_util_error (_("cannot open `%s': %s"),
file_descs[i].source, grub_util_fd_strerror ());
while (remaining)
{
size_t toread = remaining;
ssize_t r;
if (remaining > GRUB_INSTALL_COPY_BUFFER_SIZE)
toread = GRUB_INSTALL_COPY_BUFFER_SIZE;
r = grub_util_fd_read (in, grub_install_copy_buffer, toread);
if (r <= 0)
break;
fwrite (grub_install_copy_buffer, 1, r, memdisk);
if (r >= remaining)
remaining = 0;
else
remaining -= r;
}
grub_util_fd_close (in);
write_pad (size);
grub_memset (grub_install_copy_buffer, 0, GRUB_INSTALL_COPY_BUFFER_SIZE);
while (remaining)
{
size_t toread = remaining;
if (remaining > GRUB_INSTALL_COPY_BUFFER_SIZE)
toread = GRUB_INSTALL_COPY_BUFFER_SIZE;
fwrite (grub_install_copy_buffer, 1, toread, memdisk);
remaining -= toread;
}
}
fclose (memdisk);
}
int
@@ -319,8 +353,6 @@ main (int argc, char *argv[])
char *memdisk_img = grub_util_make_temporary_file ();
memdisk = grub_util_fopen (memdisk_img, "wb");
add_tar_file (memdisk_dir, "");
for (i = 0; i < nfiles; i++)
{
@@ -341,14 +373,12 @@ main (int argc, char *argv[])
to++;
add_tar_file (from, to);
}
write_zeros (512);
fclose (memdisk);
write_memdisk (memdisk_img);
grub_util_unlink_recursive (memdisk_dir);
grub_install_push_module ("memdisk");
grub_install_push_module ("tar");
grub_install_push_module ("greffs");
grub_install_make_image_wrap (grub_install_source_directory,
"(memdisk)/boot/grub", output_image,
@@ -356,5 +386,6 @@ main (int argc, char *argv[])
grub_util_get_target_name (format), 0);
grub_util_unlink (memdisk_img);
return 0;
}