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>
diff --git a/scripts/extract-vmlinux b/scripts/extract-vmlinux
index 5061abc..e6239f3 100755
--- a/scripts/extract-vmlinux
+++ b/scripts/extract-vmlinux
@@ -57,6 +57,8 @@
try_decompress 'BZh' xy bunzip2
try_decompress '\135\0\0\0' xxx unlzma
try_decompress '\211\114\132' xy 'lzop -d'
+try_decompress '\002!L\030' xxx 'lz4 -d'
+try_decompress '(\265/\375' xxx unzstd
# Bail out:
echo "$me: Cannot find vmlinux." >&2