upgpkg: 0.97-15
This commit is contained in:
Tobias Powalowski
parent
434214e44e
commit
43572b9b5c
12
PKGBUILD
12
PKGBUILD
@ -2,7 +2,7 @@
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pkgname=grub
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pkgname=grub
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pkgver=0.97
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pkgver=0.97
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pkgrel=14
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pkgrel=15
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pkgdesc="A GNU multiboot boot loader"
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pkgdesc="A GNU multiboot boot loader"
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arch=('i686' 'x86_64')
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arch=('i686' 'x86_64')
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license=('GPL')
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license=('GPL')
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@ -18,7 +18,8 @@ source=(ftp://alpha.gnu.org/gnu/grub/grub-$pkgver.tar.gz
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special-devices.patch
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special-devices.patch
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more-raid.patch
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more-raid.patch
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intelmac.patch
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intelmac.patch
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grub-inode-size.patch)
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grub-inode-size.patch
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ext4.patch)
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backup=('boot/grub/menu.lst')
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backup=('boot/grub/menu.lst')
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install=grub.install
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install=grub.install
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md5sums=('cd3f3eb54446be6003156158d51f4884'
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md5sums=('cd3f3eb54446be6003156158d51f4884'
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@ -30,7 +31,8 @@ md5sums=('cd3f3eb54446be6003156158d51f4884'
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'49f6d4bcced0bc8bbcff273f3254bbfa'
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'49f6d4bcced0bc8bbcff273f3254bbfa'
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'f41f702014a064918d7afc6fc23baa6e'
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'f41f702014a064918d7afc6fc23baa6e'
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'175dc6b9f4ab94e8056c3afb3e34460a'
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'175dc6b9f4ab94e8056c3afb3e34460a'
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'ada26cbc681907823cc4ff2a55b97866')
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'ada26cbc681907823cc4ff2a55b97866'
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'39e0f9a05b7e04aceb24fc7bc4893e3d')
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build() {
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build() {
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cd $srcdir/$pkgname-$pkgver
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cd $srcdir/$pkgname-$pkgver
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@ -38,7 +40,6 @@ build() {
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#set destination architecture here
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#set destination architecture here
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DESTARCH="i686"
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DESTARCH="i686"
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#DESTARCH="x86_64"
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#DESTARCH="x86_64"
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# optimizations break the build -- disable them
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# optimizations break the build -- disable them
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# adding special devices to grub, patches are from fedora
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# adding special devices to grub, patches are from fedora
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patch -Np1 -i ../special-devices.patch || return 1
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patch -Np1 -i ../special-devices.patch || return 1
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@ -47,6 +48,9 @@ build() {
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patch -Np1 -i ../intelmac.patch || return 1
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patch -Np1 -i ../intelmac.patch || return 1
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# Add support for bigger inode size to e2fs_stage1_5
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# Add support for bigger inode size to e2fs_stage1_5
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patch -Np1 -i ../grub-inode-size.patch || return 1
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patch -Np1 -i ../grub-inode-size.patch || return 1
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# Add ext4 support
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# http://www.mail-archive.com/bug-grub@gnu.org/msg11458.html
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patch -Np1 -i ../ext4.patch || return 1
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#arch64 fixes for static build
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#arch64 fixes for static build
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if [ "$CARCH" = "x86_64" ]; then
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if [ "$CARCH" = "x86_64" ]; then
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263
ext4.patch
Normal file
263
ext4.patch
Normal file
@ -0,0 +1,263 @@
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diff -ruNp grub-0.97/stage2/fsys_ext2fs.c grub-0.97-patch/stage2/fsys_ext2fs.c
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--- grub-0.97/stage2/fsys_ext2fs.c 2004-08-08 20:19:18.000000000 +0200
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+++ grub-0.97-patch/stage2/fsys_ext2fs.c 2007-12-29 16:25:19.000000000
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+0100
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@@ -51,6 +51,9 @@ typedef unsigned int __u32;
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#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1)
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#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1)
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+/* Inode flags */
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+#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
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+
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/* include/linux/ext2_fs.h */
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struct ext2_super_block
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{
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@@ -191,6 +194,42 @@ struct ext2_dir_entry
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#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \
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~EXT2_DIR_ROUND)
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+/* linux/ext4_fs_extents.h */
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+/*
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+ * This is the extent on-disk structure.
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+ * It's used at the bottom of the tree.
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+ */
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+struct ext4_extent {
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+ __u32 ee_block; /* first logical block extent covers */
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+ __u16 ee_len; /* number of blocks covered by extent */
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+ __u16 ee_start_hi; /* high 16 bits of physical block */
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+ __u32 ee_start; /* low 32 bits of physical block */
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+};
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+
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+/*
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+ * This is index on-disk structure.
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+ * It's used at all the levels except the bottom.
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+ */
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+struct ext4_extent_idx {
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+ __u32 ei_block; /* index covers logical blocks from 'block' */
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+ __u32 ei_leaf; /* pointer to the physical block of the next *
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+ * level. leaf or next index could be there */
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+ __u16 ei_leaf_hi; /* high 16 bits of physical block */
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+ __u16 ei_unused;
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+};
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+
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+/*
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+ * Each block (leaves and indexes), even inode-stored has header.
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+ */
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+struct ext4_extent_header {
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+ __u16 eh_magic; /* probably will support different formats */
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+ __u16 eh_entries; /* number of valid entries */
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+ __u16 eh_max; /* capacity of store in entries */
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+ __u16 eh_depth; /* has tree real underlying blocks? */
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+ __u32 eh_generation; /* generation of the tree */
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+};
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+
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+#define EXT4_EXT_MAGIC 0xf30a
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/* ext2/super.c */
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#define log2(n) ffz(~(n))
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@@ -279,6 +318,26 @@ ext2_rdfsb (int fsblock, int buffer)
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EXT2_BLOCK_SIZE (SUPERBLOCK), (char *) buffer);
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}
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+/* Walk through extents index tree to find the good leaf */
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+static struct ext4_extent_header *
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+ext4_recurse_extent_index(struct ext4_extent_header *extent_block, int logical_block)
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+{
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+ int i;
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+ struct ext4_extent_idx *index = (struct ext4_extent_idx *) (extent_block + 1);
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+ if (extent_block->eh_magic != EXT4_EXT_MAGIC)
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+ return NULL;
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+ if (extent_block->eh_depth == 0)
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+ return extent_block;
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+ for (i = 0; i < extent_block->eh_entries; i++)
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+ {
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+ if (logical_block < index[i].ei_block)
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+ break;
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+ }
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+ if (i == 0 || !ext2_rdfsb(index[i-1].ei_leaf, DATABLOCK1))
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+ return NULL;
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+ return (ext4_recurse_extent_index((struct ext4_extent_header *) DATABLOCK1, logical_block));
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+}
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+
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/* from
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ext2/inode.c:ext2_bmap()
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*/
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--- grub-0.97/stage2/fsys_ext2fs.c~ 2008-12-28 20:19:00.000000000 +0100
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+++ grub-0.97/stage2/fsys_ext2fs.c 2008-12-28 20:19:00.000000000 +0100
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@@ -366,83 +366,106 @@
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}
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printf ("logical block %d\n", logical_block);
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#endif /* E2DEBUG */
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-
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- /* if it is directly pointed to by the inode, return that physical addr */
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- if (logical_block < EXT2_NDIR_BLOCKS)
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- {
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-#ifdef E2DEBUG
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- printf ("returning %d\n", (unsigned char *) (INODE->i_block[logical_block]));
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- printf ("returning %d\n", INODE->i_block[logical_block]);
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-#endif /* E2DEBUG */
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- return INODE->i_block[logical_block];
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- }
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- /* else */
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- logical_block -= EXT2_NDIR_BLOCKS;
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- /* try the indirect block */
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- if (logical_block < EXT2_ADDR_PER_BLOCK (SUPERBLOCK))
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+ /* standard ext2 inode */
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+ if (!(INODE->i_flags & EXT4_EXTENTS_FL))
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{
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- if (mapblock1 != 1
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- && !ext2_rdfsb (INODE->i_block[EXT2_IND_BLOCK], DATABLOCK1))
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- {
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- errnum = ERR_FSYS_CORRUPT;
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- return -1;
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- }
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- mapblock1 = 1;
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- return ((__u32 *) DATABLOCK1)[logical_block];
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- }
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- /* else */
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- logical_block -= EXT2_ADDR_PER_BLOCK (SUPERBLOCK);
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- /* now try the double indirect block */
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- if (logical_block < (1 << (EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK) * 2)))
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- {
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- int bnum;
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- if (mapblock1 != 2
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- && !ext2_rdfsb (INODE->i_block[EXT2_DIND_BLOCK], DATABLOCK1))
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- {
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- errnum = ERR_FSYS_CORRUPT;
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- return -1;
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- }
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- mapblock1 = 2;
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- if ((bnum = (((__u32 *) DATABLOCK1)
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- [logical_block >> EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK)]))
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- != mapblock2
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- && !ext2_rdfsb (bnum, DATABLOCK2))
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- {
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- errnum = ERR_FSYS_CORRUPT;
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- return -1;
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- }
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- mapblock2 = bnum;
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+ /* if it is directly pointed to by the inode, return that physical addr */
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+ if (logical_block < EXT2_NDIR_BLOCKS)
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+ {
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+#ifdef E2DEBUG
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+ printf ("returning %d\n", (unsigned char *) (INODE->i_block[logical_block]));
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+ printf ("returning %d\n", INODE->i_block[logical_block]);
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+#endif /* E2DEBUG */
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+ return INODE->i_block[logical_block];
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+ }
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+ /* else */
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+ logical_block -= EXT2_NDIR_BLOCKS;
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+ /* try the indirect block */
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+ if (logical_block < EXT2_ADDR_PER_BLOCK (SUPERBLOCK))
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+ {
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+ if (mapblock1 != 1
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+ && !ext2_rdfsb (INODE->i_block[EXT2_IND_BLOCK], DATABLOCK1))
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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+ mapblock1 = 1;
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+ return ((__u32 *) DATABLOCK1)[logical_block];
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+ }
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+ /* else */
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+ logical_block -= EXT2_ADDR_PER_BLOCK (SUPERBLOCK);
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+ /* now try the double indirect block */
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+ if (logical_block < (1 << (EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK) * 2)))
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+ {
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+ int bnum;
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+ if (mapblock1 != 2
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+ && !ext2_rdfsb (INODE->i_block[EXT2_DIND_BLOCK], DATABLOCK1))
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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+ mapblock1 = 2;
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+ if ((bnum = (((__u32 *) DATABLOCK1)
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+ [logical_block >> EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK)]))
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+ != mapblock2
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+ && !ext2_rdfsb (bnum, DATABLOCK2))
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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+ mapblock2 = bnum;
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+ return ((__u32 *) DATABLOCK2)
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+ [logical_block & (EXT2_ADDR_PER_BLOCK (SUPERBLOCK) - 1)];
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+ }
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+ /* else */
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+ mapblock2 = -1;
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+ logical_block -= (1 << (EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK) * 2));
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+ if (mapblock1 != 3
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+ && !ext2_rdfsb (INODE->i_block[EXT2_TIND_BLOCK], DATABLOCK1))
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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+ mapblock1 = 3;
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+ if (!ext2_rdfsb (((__u32 *) DATABLOCK1)
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+ [logical_block >> (EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK)
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+ * 2)],
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+ DATABLOCK2))
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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+ if (!ext2_rdfsb (((__u32 *) DATABLOCK2)
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+ [(logical_block >> EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK))
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+ & (EXT2_ADDR_PER_BLOCK (SUPERBLOCK) - 1)],
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+ DATABLOCK2))
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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return ((__u32 *) DATABLOCK2)
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- [logical_block & (EXT2_ADDR_PER_BLOCK (SUPERBLOCK) - 1)];
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- }
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- /* else */
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- mapblock2 = -1;
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- logical_block -= (1 << (EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK) * 2));
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- if (mapblock1 != 3
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- && !ext2_rdfsb (INODE->i_block[EXT2_TIND_BLOCK], DATABLOCK1))
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- {
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- errnum = ERR_FSYS_CORRUPT;
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- return -1;
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+ [logical_block & (EXT2_ADDR_PER_BLOCK (SUPERBLOCK) - 1)];
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}
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- mapblock1 = 3;
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- if (!ext2_rdfsb (((__u32 *) DATABLOCK1)
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- [logical_block >> (EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK)
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- * 2)],
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- DATABLOCK2))
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- {
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- errnum = ERR_FSYS_CORRUPT;
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- return -1;
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- }
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- if (!ext2_rdfsb (((__u32 *) DATABLOCK2)
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- [(logical_block >> EXT2_ADDR_PER_BLOCK_BITS (SUPERBLOCK))
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- & (EXT2_ADDR_PER_BLOCK (SUPERBLOCK) - 1)],
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- DATABLOCK2))
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+ /* inode is in extents format */
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+ else
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{
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+ int i;
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+ struct ext4_extent_header *extent_hdr = ext4_recurse_extent_index((struct ext4_extent_header *) INODE->i_block, logical_block);
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+ struct ext4_extent *extent = (struct ext4_extent *) (extent_hdr + 1);
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+ if ( extent_hdr == NULL || extent_hdr->eh_magic != EXT4_EXT_MAGIC)
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+ {
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+ errnum = ERR_FSYS_CORRUPT;
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+ return -1;
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+ }
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+ for (i = 0; i<extent_hdr->eh_entries; i++)
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+ {
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+ if (extent[i].ee_block <= logical_block && logical_block < extent[i].ee_block + extent[i].ee_len && !(extent[i].ee_len>>15))
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+ return (logical_block - extent[i].ee_block + extent[i].ee_start);
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+ }
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+ /* We should not arrive here */
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errnum = ERR_FSYS_CORRUPT;
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return -1;
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}
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- return ((__u32 *) DATABLOCK2)
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- [logical_block & (EXT2_ADDR_PER_BLOCK (SUPERBLOCK) - 1)];
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}
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/* preconditions: all preconds of ext2fs_block_map */
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Reference in New Issue
Block a user