linux

iv/linux

Fork 0

Commit Graph

Author	SHA1	Message	Date
Helge Deller	db139d71c4	extract-vmlinux: Check for uncompressed image as fallback As on x86-64 and other architectures, the boot kernel on parisc (vmlinuz and bzImage) contains a full compressed copy of the final kernel executable (vmlinux.bin.gz), which one should be able to extract with the extract-vmlinux script. But on parisc extracting the kernel with extract-vmlinux fails. Currently the script first checks if the given file is an ELF file (which is true on parisc) and if so returns it. Thus on parisc we unexpectedly get back the vmlinuz boot file instead of the uncompressed vmlinux image. This patch fixes this issue by reverting the logic. It now first tries to find a compression signature in the given file and if that fails it checks the file itself as fallback. Signed-off-by: Helge Deller <deller@gmx.de>	2018-10-17 08:18:01 +02:00
Adam Borowski	47a18a2dab	scripts: teach extract-vmlinux about LZ4 and ZSTD Note that the LZ4 signature is different than that of modern LZ4 as we use the "legacy" format which suffers from some downsides like inability to disable compression. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>	2018-07-08 09:32:32 +09:00
Corentin Chary	09d481270d	scripts: add extract-vmlinux This script can be used to extract vmlinux from a compressed kernel image (bzImage, etc..). It's inspired from (a subset of) extract-ikconfig. It's something a lot of people have been looking for (mainly people with xen < 4 that doesn't support bzImages at all). Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Michal Marek <mmarek@suse.cz>	2011-08-31 16:12:17 +02:00

Author

SHA1

Message

Date

Helge Deller

db139d71c4

extract-vmlinux: Check for uncompressed image as fallback

As on x86-64 and other architectures, the boot kernel on parisc (vmlinuz
and bzImage) contains a full compressed copy of the final kernel
executable (vmlinux.bin.gz), which one should be able to extract with
the extract-vmlinux script.

But on parisc extracting the kernel with extract-vmlinux fails.
Currently the script first checks if the given file is an ELF file
(which is true on parisc) and if so returns it.  Thus on parisc we
unexpectedly get back the vmlinuz boot file instead of the uncompressed
vmlinux image.

This patch fixes this issue by reverting the logic. It now first tries
to find a compression signature in the given file and if that fails it
checks the file itself as fallback.

Signed-off-by: Helge Deller <deller@gmx.de>

2018-10-17 08:18:01 +02:00

Adam Borowski

47a18a2dab

scripts: teach extract-vmlinux about LZ4 and ZSTD

Note that the LZ4 signature is different than that of modern LZ4 as we
use the "legacy" format which suffers from some downsides like inability
to disable compression.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

2018-07-08 09:32:32 +09:00

Corentin Chary

09d481270d

scripts: add extract-vmlinux

This script can be used to extract vmlinux from a compressed
kernel image (bzImage, etc..). It's inspired from (a subset of)
extract-ikconfig.

It's something a lot of people have been looking for (mainly
people with xen < 4 that doesn't support bzImages at all).

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

2011-08-31 16:12:17 +02:00

3 Commits