Date: Thu, 12 Aug 2021 12:39:31 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: c4bb20a5ec87 - stable/13 - _Exit(3): document implementation Message-ID: <202108121239.17CCdVGN059046@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=c4bb20a5ec876fb44e152c5773b7104e4c753dec commit c4bb20a5ec876fb44e152c5773b7104e4c753dec Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-08-05 16:04:44 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> 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
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