From nobody Fri Oct 07 15:26:55 2022 X-Original-To: dev-commits-src-branches@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4MkXGm2QDBz4dyPG; Fri, 7 Oct 2022 15:26:56 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4MkXGl6HHmz449D; Fri, 7 Oct 2022 15:26:55 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1665156415; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ewZh35pWnExBtiDHp37j0uZ3HJq7t5GG41kRc9kkgtg=; b=vdi6u6q0StoD2KrbaO+zwiXDmBW9kTOzd5Eaq2bmrERtRckP8hz6GCJjVNX9Ye2s1ivS2c FgMmpsAFQ4hJpI66Pr8TP1X4Gf2c4jdImK2zPSoAAjopFdB5RUFX8GhD7du5S+UkLz74on VLtES2mX8m2KH0HLjmz53N7/Xk6xeABbO0nJaMIsbOJpoGMXQJtUia9FavP8WTLkxYWie5 dbu8wkWETtaNIWhox5VLZ87ia6Wckeu9q4OIlYh/kpZCmvOiGxI8BENxEL5rPRIUDoPd2d nZ5myKnDQ01FmkbWFmYi7sKIHcwVcTCEKYn0gORoh75P1sB/jvo+gsQSQ3CcFw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4MkXGl5PC8zdkd; Fri, 7 Oct 2022 15:26:55 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 297FQtZC049140; Fri, 7 Oct 2022 15:26:55 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 297FQtVL049139; Fri, 7 Oct 2022 15:26:55 GMT (envelope-from git) Date: Fri, 7 Oct 2022 15:26:55 GMT Message-Id: <202210071526.297FQtVL049139@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Ed Maste Subject: git: 68ff187a2530 - stable/12 - Add ELFCOMPRESS_ZSTD ELF compression constant List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-branches@freebsd.org X-BeenThere: dev-commits-src-branches@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: emaste X-Git-Repository: src X-Git-Refname: refs/heads/stable/12 X-Git-Reftype: branch X-Git-Commit: 68ff187a25306514b36e0b17314603e050ea301b Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1665156415; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ewZh35pWnExBtiDHp37j0uZ3HJq7t5GG41kRc9kkgtg=; b=pqEpLgLADUWhGUuN0LXBZwQsn245GtN7UMTi42xZTRCdHEtJvvItYhwVyBZbfLswgcY06C QzE/nS/CFnKKcrFk80RvfN4UiorJyUIRjFRl7uDMnoNDqNVADDlI32CnxVHP/3jX7YsVtJ 4NPOf7AzYJMJ/LuCzIGgFOcdrcSp36QbQdvnIGt+u1MhtnMo8zpOtXeYv36vMtsmzPu50h kwJcqZy7Rdo1UIA6CgWTNWcKXmbrUNtJpmeu5GErUNF+ag/BwjMAJ4Ou0Bs3tttTTiMsFx gXyB4vN29f3TLaXEAYwCQ6VpKB2KLaSVGfYmy+uqpLMphPkp+MOPkeoWVD2xYA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1665156415; a=rsa-sha256; cv=none; b=kPWl947li4OzPx6CQlvyvKlShPIPsl0iLCeIFnxeqHv538WH1gOqzMpP29OYD5t2Ukk42v HAexWh/Q9c4/EQCydMABxySk+3/0xqjfFMDNCJcuwmpMfSxoyJEh9lgRyMwBlAOUO+D/dH IOinXu4HRGhU0ADvXeQotmRDSP2xvfDrdUyAytghwcieKl3Md/quVuB202o/+NRULRPv2m GQpf2m8/VZ8LWI6gkLOWph9SFkgWBmRN9Gb4ClfB87t/IsWF3wTbHTN0CTm9g/yG5GLT+F UPfxH5fxBFmxper2tYAjrWFSPM2y90QzQhNtts6h5JKEMrxNUU1ma4h054XUsw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch stable/12 has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=68ff187a25306514b36e0b17314603e050ea301b commit 68ff187a25306514b36e0b17314603e050ea301b Author: Ed Maste AuthorDate: 2022-06-28 13:06:12 +0000 Commit: Ed Maste CommitDate: 2022-10-07 15:24:36 +0000 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) --- share/man/man5/elf.5 | 6 +++++- sys/sys/elf_common.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/share/man/man5/elf.5 b/share/man/man5/elf.5 index f7abefa9a5d0..df051adbf873 100644 --- a/share/man/man5/elf.5 +++ b/share/man/man5/elf.5 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd March 11, 2020 +.Dd July 25, 2022 .Dt ELF 5 .Os .Sh NAME @@ -1069,6 +1069,10 @@ be registered. This section holds information used for C++ exception-handling. .El .Pp +A value of +.Dv ELFCOMPRESS_ZSTD +indicates that the data is compressed using +Zstandard. String table sections hold null-terminated character sequences, commonly called strings. The object file uses these strings to represent symbol diff --git a/sys/sys/elf_common.h b/sys/sys/elf_common.h index ed5352ba53a2..d77fc31720a4 100644 --- a/sys/sys/elf_common.h +++ b/sys/sys/elf_common.h @@ -923,6 +923,7 @@ typedef struct { /* Values for ch_type (compressed section headers). */ #define ELFCOMPRESS_ZLIB 1 /* ZLIB/DEFLATE */ +#define ELFCOMPRESS_ZSTD 2 /* Zstandard */ #define ELFCOMPRESS_LOOS 0x60000000 /* OS-specific */ #define ELFCOMPRESS_HIOS 0x6fffffff #define ELFCOMPRESS_LOPROC 0x70000000 /* Processor-specific */