Eric Lee / linux-smarc-t335x-v3.2

04 Dec, 2008

1 commit

  • 3b1ec9fb8   kbuild: gen_init_cpio expands shell variables in file names ... Browse Code »

    Modify gen_init_cpio so that lines that specify files can contain
    what looks like a shell variable that's expanded during processing.

    For example:

    file /sbin/kinit ${RFS_BASE}/usr/src/klibc/kinit/kinit 0755 0 0

    given RFS_BASE is "/some/directory" in the environment

    would be expanded to

    file /sbin/kinit /some/directory/usr/src/klibc/kinit/kinit 0755 0 0

    If several environment variables appear in a line, they are all expanded
    with processing happening from left to right.
    Undefined variables expand to a null string.
    Syntax errors stop processing, letting the existing error handling
    show the user offending line.

    This patch helps embedded folks who frequently create several
    RFS directories and then switch between them as they're tuning
    an initramfs.

    Signed-off-by: gene.sally@timesys.com
    Signed-off-by: Sam Ravnborg

    Sally, Gene
     

17 Jul, 2007

2 commits

03 May, 2007

1 commit

12 Feb, 2007

2 commits

  • 24fa50961   [PATCH] usr/gen_init_cpio.c: support for hard links ... Browse Code »

    Extend usr/gen_init_cpio.c "file" entry, adding support for hard links.

    Previous format:
    file

    New format:
    file []

    The hard links specification is optional, keeping the previous
    behaviour.

    All hard links are defined sequentially in the resulting cpio and the
    file data is present only in the last link. This is the behaviour of
    GNU's cpio and is supported by the kernel initramfs extractor.

    Signed-off-by: Luciano Rocha
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Luciano Rocha
     
  • c33df4eaa   [PATCH] disable init/initramfs.c ... Browse Code »

    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

    Jean-Paul Saman
     

26 Nov, 2006

1 commit

  • a26d79ca8   [PATCH] initramfs: handle more than one source dir or file list ... Browse Code »

    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

    Thomas Chou
     

25 Sep, 2006

1 commit

  • 48f1f0589   kbuild: consistently decide when to rebuild a target ... Browse Code »

    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 targets

    While 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

    Sam Ravnborg
     

08 Aug, 2006

1 commit

  • 58a2f7d85   kbuild: do not try to build content of initramfs ... Browse Code »

    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

    Sam Ravnborg
     

10 Jun, 2006

1 commit

20 Apr, 2006

1 commit

11 Apr, 2006

1 commit

  • d39a206bc   kbuild: rebuild initramfs if content of initramfs changes ... Browse Code »

    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 rebuild

    With this change we have a much more robust initramfs generation.

    Signed-off-by: Sam Ravnborg

    Sam Ravnborg
     

18 Oct, 2005

1 commit

11 Aug, 2005

1 commit

26 Jul, 2005

1 commit

  • 8ec4b4ff1   kbuild: introduce Kbuild.include ... Browse Code »

    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
    ---

    Sam Ravnborg
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    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!

    Linus Torvalds