K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2022-10-07T15:27:45.013691Z
K 7
svn:log
V 799
Add ELFCOMPRESS_ZSTD ELF compression constant

ELFCOMPRESS_ZSTD indicates that an ELF section is compressed with zstd.
It is the second compression type, after the existing ELFCOMPRESS_ZLIB.
Zstd generally provides a compelling tradeoff of speed and compression
(other algorithms may compress slightly better but take a lot longer,
or run faster but do not compress nearly as well).

See https://groups.google.com/g/generic-abi/c/satyPkuMisk for details.
ELFCOMPRESS_ZSTD will be supported in a future Clang/LLVM update.  ELF
Tool Chain tools also need updating.

Reviewed by:	Fangrui Song
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit 05b6744c446c2d274738fbb27a3ded1bf9f9f1d1)

Git Hash:   68ff187a25306514b36e0b17314603e050ea301b
Git Author: emaste@FreeBSD.org
END