From owner-dev-commits-src-all@freebsd.org Thu Aug 12 12:39:31 2021 Return-Path: Delivered-To: dev-commits-src-all@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 88A2C66B161; Thu, 12 Aug 2021 12:39:31 +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 4GlmTv2DCLz4jCx; Thu, 12 Aug 2021 12:39:31 +0000 (UTC) (envelope-from git@FreeBSD.org) 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 24EF422F99; Thu, 12 Aug 2021 12:39:31 +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 17CCdV52059047; Thu, 12 Aug 2021 12:39:31 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 17CCdVGN059046; Thu, 12 Aug 2021 12:39:31 GMT (envelope-from git) Date: Thu, 12 Aug 2021 12:39:31 GMT Message-Id: <202108121239.17CCdVGN059046@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: c4bb20a5ec87 - stable/13 - _Exit(3): document implementation MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: c4bb20a5ec876fb44e152c5773b7104e4c753dec Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Aug 2021 12:39:31 -0000 The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=c4bb20a5ec876fb44e152c5773b7104e4c753dec commit c4bb20a5ec876fb44e152c5773b7104e4c753dec Author: Konstantin Belousov AuthorDate: 2021-08-05 16:04:44 +0000 Commit: Konstantin Belousov CommitDate: 2021-08-12 12:37:54 +0000 _Exit(3): document implementation (cherry picked from commit ee62fb2e1e14eab35d4e4e92535bcac9fc91eeb8) --- lib/libc/stdlib/exit.3 | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/lib/libc/stdlib/exit.3 b/lib/libc/stdlib/exit.3 index 9c2b79b72956..ff7a67ffcb85 100644 --- a/lib/libc/stdlib/exit.3 +++ b/lib/libc/stdlib/exit.3 @@ -32,7 +32,7 @@ .\" @(#)exit.3 8.1 (Berkeley) 6/4/93 .\" $FreeBSD$ .\" -.Dd March 22, 2020 +.Dd August 5, 2021 .Dt EXIT 3 .Os .Sh NAME @@ -58,17 +58,17 @@ Before termination, performs the following functions in the order listed: .Bl -enum -offset indent .It -Call the functions registered with the +Call all functions registered with the +.Xr __cxa_atexit 3 +function +(which are typically destructors from the loaded dynamic objects), +and the functions registered with the .Xr atexit 3 function, in the reverse order of their registration. .It Flush all open output streams. .It Close all open streams. -.It -Unlink all files created with the -.Xr tmpfile 3 -function. .El .Pp The @@ -76,6 +76,14 @@ The function terminates without calling the functions registered with the .Xr atexit 3 function, and may or may not perform the other actions listed. +The +.Fx +implementation of the +.Fn _Exit +function does not call destructors registered with +.Xr __cxa_atexit 3, +does not flush buffers, and does not close streams. +.Pp Both functions make the low-order eight bits of the .Fa status argument available to a parent process which has called a