14 Jan, 2011
1 commit
-
This implements the API defined in which is
used for kernel, initramfs, and initrd decompression. This patch together
with the first patch is enough for XZ-compressed initramfs and initrd;
XZ-compressed kernel will need arch-specific changes.The buffering requirements described in decompress_unxz.c are stricter
than with gzip, so the relevant changes should be done to the
arch-specific code when adding support for XZ-compressed kernel.
Similarly, the heap size in arch-specific pre-boot code may need to be
increased (30 KiB is enough).The XZ decompressor needs memmove(), memeq() (memcmp() == 0), and
memzero() (memset(ptr, 0, size)), which aren't available in all
arch-specific pre-boot environments. I'm including simple versions in
decompress_unxz.c, but a cleaner solution would naturally be nicer.Signed-off-by: Lasse Collin
Cc: "H. Peter Anvin"
Cc: Alain Knaff
Cc: Albin Tonnerre
Cc: Phillip Lougher
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Sep, 2010
1 commit
-
Remove initramfs_data.{lzo,lzma,gz,bz2}.S variants and use a common
implementation in initramfs_data.S. The common implementation expects the
file name of the initramfs to be defined in INITRAMFS_IMAGE.Change the Makefile to set the INITRAMFS_IMAGE define symbol according
to the selected compression method.Signed-off-by: Hendrik Brueckner
Cc: WANG Cong
Acked-by: Michal Marek
Acked-by: "H. Peter Anvin"
Cc: Hendrik Brueckner
Cc: Heiko Carstens
Cc: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Michal Marek
28 May, 2010
1 commit
-
Add the necessary parts to be enable the use of LZO-compressed initramfs
build into the kernel.Signed-off-by: Albin Tonnerre
Cc: "H. Peter Anvin"
Cc: Michal Marek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Sep, 2009
1 commit
-
Fix the Makefile comment since bzip2 is now supported.
Signed-off-by: Robert P. J. Day
Signed-off-by: Sam Ravnborg
01 Apr, 2009
1 commit
-
Impact: quiet Kconfig warning
It appears that Kconfig simply has no way to provide defaults for
entries that exist inside a conditionalized choice block.
Fortunately, it turns out we don't actually ever use
CONFIG_INITRAMFS_COMPRESSION_NONE, so we can just drop it for
everything outside the choice block.Signed-off-by: H. Peter Anvin
20 Feb, 2009
1 commit
-
Impact: Avoids silent environment dependency
Make builtin initramfs compression an explicit configurable. The
previous version would pick a compression based on the binaries which
were installed on the system, which could lead to unexpected results.
It is now explicitly configured, and not having the appropriate
binaries installed on the build host is simply an error.Signed-off-by: Alain Knaff
Signed-off-by: H. Peter Anvin
07 Jan, 2009
1 commit
-
Impact: Resolves build failures in some configurations
Makes it possible to disable CONFIG_RD_GZIP . In that case, the
built-in initramfs will be compressed by whatever compressor is
available (bzip2 or lzma) or left uncompressed if none is available.It also removes a couple of warnings which occur when no ramdisk
compression at all is chosen.It also restores the select ZLIB_INFLATE in drivers/block/Kconfig
which somehow came missing. This is needed to activate compilation of
the stuff in zlib_deflate.Signed-off-by: Alain Knaff
Signed-off-by: H. Peter Anvin
12 Feb, 2007
1 commit
-
The file init/initramfs.c is always compiled and linked in the kernel
vmlinux even when BLK_DEV_RAM and BLK_DEV_INITRD are disabled and the
system isn't using any form of an initramfs or initrd. In this situation
the code is only used to unpack a (static) default initial rootfilesystem.
The current init/initramfs.c code. usr/initramfs_data.o compiles to a size
of ~15 kbytes. Disabling BLK_DEV_RAM and BLK_DEV_INTRD shrinks the kernel
code size with ~60 Kbytes.This patch avoids compiling in the code and data for initramfs support if
CONFIG_BLK_DEV_INITRD is not defined. Instead of the initramfs code and
data it uses a small routine in init/noinitramfs.c to setup an initial
static default environment for mounting a rootfilesystem later on in the
kernel initialisation process. The new code is: 164 bytes of size.The patch is separated in two parts:
1) doesn't compile initramfs code when CONFIG_BLK_DEV_INITRD is not set
2) changing all plaforms vmlinux.lds.S files to not reserve an area of
PAGE_SIZE when CONFIG_BLK_DEV_INITRD is not set.[deweerdt@free.fr: warning fix]
Signed-off-by: Jean-Paul Saman
Cc: Al Viro
Cc:
Signed-off-by: Frederik Deweerdt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Nov, 2006
1 commit
-
Fix bug 7401.
Handle more than one source dir or file list to the initramfs gen scripts.
The Kconfig help for INITRAMFS_SOURCE claims that you can specify multiple
space-separated sources in order to allow unprivileged users to build an
image. There are two bugs in the current implementation that prevent this
from working.First, we pass "file1 dir2" to the gen_initramfs_list.sh script, which it
obviously can't open.Second, gen_initramfs_list.sh -l outputs multiple definitions for
deps_initramfs -- one for each argument.Signed-off-by: Thomas Chou
Cc: Sam Ravnborg
Acked-by: Matthew Wilcox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Sep, 2006
1 commit
-
Consistently decide when to rebuild a target across all of
if_changed, if_changed_dep, if_changed_rule.
PHONY targets are now treated alike (ignored) for all targetsWhile add it make Kbuild.include almost readable by factoring out a few
bits to some common variables and reuse this in Makefile.build.Signed-off-by: Sam Ravnborg
08 Aug, 2006
1 commit
-
When a file supplied via CONFIG_INITRAMFS pointed to a file
for which kbuild had a rule to compile it (foo.c => foo.o)
then kbuild would compile the file before adding the
file to the initramfs.Teach make that files included in initramfs shall not be updated by adding
an 'empty command'. (See "Using Empty Commands" in info make).Signed-off-by: Sam Ravnborg
10 Jun, 2006
1 commit
-
This patch fix double inclusion of ramfs-input.
Signed-off-by: Nickolay Vinogradov
Signed-off-by: Sam Ravnborg
11 Apr, 2006
1 commit
-
initramfs.cpio.gz being build in usr/ and included in the
kernel was not rebuild when the included files changed.To fix this the following was done:
- let gen_initramfs.sh generate a list of files and directories included
in the initramfs
- gen_initramfs generate the gzipped cpio archive so we could simplify
the kbuild file (Makefile)
- utilising the kbuild infrastructure so when uid/gid root mapping changes
the initramfs will be rebuildWith this change we have a much more robust initramfs generation.
Signed-off-by: Sam Ravnborg
26 Jul, 2005
1 commit
-
Kbuild.include is a placeholder for definitions originally present in
both the top-level Makefile and scripts/Makefile.build.
There were a slight difference in the filechk definition, so the most videly
used version was kept and usr/Makefile was adopted for this syntax.Signed-off-by: Sam Ravnborg
---
17 Apr, 2005
1 commit
-
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
