From owner-svn-src-head@freebsd.org Sun Sep 27 18:14:02 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C2D254236B8; Sun, 27 Sep 2020 18:14:02 +0000 (UTC) (envelope-from trasz@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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Bzv164W23z43wY; Sun, 27 Sep 2020 18:14:02 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7E6A910BC2; Sun, 27 Sep 2020 18:14:02 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 08RIE2E1090279; Sun, 27 Sep 2020 18:14:02 GMT (envelope-from trasz@FreeBSD.org) Received: (from trasz@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 08RIE272090278; Sun, 27 Sep 2020 18:14:02 GMT (envelope-from trasz@FreeBSD.org) Message-Id: <202009271814.08RIE272090278@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: trasz set sender to trasz@FreeBSD.org using -f From: Edward Tomasz Napierala Date: Sun, 27 Sep 2020 18:14:02 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r366201 - head/sys/sys X-SVN-Group: head X-SVN-Commit-Author: trasz X-SVN-Commit-Paths: head/sys/sys X-SVN-Commit-Revision: 366201 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Sep 2020 18:14:02 -0000 Author: trasz Date: Sun Sep 27 18:14:01 2020 New Revision: 366201 URL: https://svnweb.freebsd.org/changeset/base/366201 Log: Shrink struct sysent from 48 to 32 bytes (on LP64; on ILP32 its probably from 32 to 28) by shrinking some entries and reordering them. Reviewed by: kib Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D26508 Modified: head/sys/sys/sysent.h Modified: head/sys/sys/sysent.h ============================================================================== --- head/sys/sys/sysent.h Sun Sep 27 16:15:03 2020 (r366200) +++ head/sys/sys/sysent.h Sun Sep 27 18:14:01 2020 (r366201) @@ -65,14 +65,14 @@ extern bool systrace_enabled; #endif /* _KERNEL */ struct sysent { /* system call table */ - int sy_narg; /* number of arguments */ sy_call_t *sy_call; /* implementing function */ - au_event_t sy_auevent; /* audit event associated with syscall */ systrace_args_func_t sy_systrace_args_func; /* optional argument conversion function. */ + u_int8_t sy_narg; /* number of arguments */ + u_int8_t sy_flags; /* General flags for system calls. */ + au_event_t sy_auevent; /* audit event associated with syscall */ u_int32_t sy_entry; /* DTrace entry ID for systrace. */ u_int32_t sy_return; /* DTrace return ID for systrace. */ - u_int32_t sy_flags; /* General flags for system calls. */ u_int32_t sy_thrcnt; };