diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-12-07 02:14:04 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:04 +0100 |
| commit | 968de4f02621db35b8ae5239c8cfc6664fb872d8 (patch) | |
| tree | 9388da7f18f9511e1bbfeaf934cba8dbc696e9f4 /arch/i386/boot/compressed/vmlinux.scr | |
| parent | fd593d12770d4a0d1ff095d44b96436c18479ee8 (diff) | |
| download | linux-968de4f02621db35b8ae5239c8cfc6664fb872d8.tar.gz | |
[PATCH] i386: Relocatable kernel support
This patch modifies the i386 kernel so that if CONFIG_RELOCATABLE is
selected it will be able to be loaded at any 4K aligned address below
1G. The technique used is to compile the decompressor with -fPIC and
modify it so the decompressor is fully relocatable. For the main
kernel relocations are generated. Resulting in a kernel that is relocatable
with no runtime overhead and no need to modify the source code.
A reserved 32bit word in the parameters has been assigned
to serve as a stack so we figure out where are running.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/i386/boot/compressed/vmlinux.scr')
| -rw-r--r-- | arch/i386/boot/compressed/vmlinux.scr | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/i386/boot/compressed/vmlinux.scr b/arch/i386/boot/compressed/vmlinux.scr index 1ed9d791f8638..707a88f7f29eb 100644 --- a/arch/i386/boot/compressed/vmlinux.scr +++ b/arch/i386/boot/compressed/vmlinux.scr @@ -1,9 +1,10 @@ SECTIONS { - .data : { + .data.compressed : { input_len = .; LONG(input_data_end - input_data) input_data = .; *(.data) + output_len = . - 4; input_data_end = .; } } |