From nobody Fri Apr 17 00:42:49 2026 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 4fxbhB2GFhz6b0Vc for ; Fri, 17 Apr 2026 00:42:50 +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 "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fxbhB06dmz3fCF for ; Fri, 17 Apr 2026 00:42:50 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776386570; 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=nzkj2kjL2ZogTTikYvaITPRCMdoXdzEsVxMk7U578eU=; b=LWU2TCTG0BJuhUc++yVzbc5sJ9aIlJL2PORON8MGK+s4oAeyuL7cBONHVcPW9z0oIcuybt hiJJb8visvm4ITrO69GHtvVQ6XeJd4bw5GbyuateVbt+DOLXEcR5LZQxZq9h7x5B0hTDd9 /0rkVejn3I4uT9gaS+NQw2Fqwy1ZZrDWEfDx0rGSF/nAqCqRiTS5ntecKdI7+UGVhwoVVh D1tn/6abzTmsG6B7u4xrbdVmDaG47aW4k7n1PKLgnJjO3jonr6WWtLRJrn8Ld3njVfRIN4 QISDXIo48gPVwIEcdJCDiwByJyLwVuAtPw3s4LlDaxn5/XCPFwHNiIx++TR7Qg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1776386570; a=rsa-sha256; cv=none; b=bo6l3wHDcwuBDzDY+Xs6xB4WAofpk1PEovpXeaNngJeBeL88Uei+SgK1IPPAXILPCBEmly kYW2GqkeVpBQuSMTjD1/Lt59BMWr6wgNR63ICZTg7iLsbIA5SQuVXaya4O9h4vpVV9sFCT yqwaoOheVnmpSN0wFjcTP3g1FkLQvb4nHQpe8bCp0A29zEytRFCcZrJv+RY2kR2xfDuxlJ nRhhRdSEcqtu99cBgb7m++ddZGrXur8y0jo6H/VGhGJ+mxa8f/UEw6WEgwSOkd8jA4eoAz ejvrVl0SdCVg5eheQwP3qg1nXTrdJ9sG7rWuM3k8rK0cVFFxioIM2eRrK7L6LA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776386570; 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=nzkj2kjL2ZogTTikYvaITPRCMdoXdzEsVxMk7U578eU=; b=ZMchYduAvZ9ltglfpUbHGRsu0P5ZFcAxGRq4GgDgidgArPDBq/L7PA6yc7Zzc3vqlKivEz RIvvGv04001AB2oSzyeDEAwJfpZVvHLH9uS7WYfWLh2O1ufu1G4wH4JSDzMe5xY+GTvxQH dwVocq3ZVsq540ivHO6icKKB697vYIEinvH/+Ty1NtMd2LTwVoxKXnRBML6tLOITa1ch6e e2u30RMsuHSJHBN+4q+7FI95oGy/thSK4vGZ/V4kVCgX5TJKZjzhijANNX05l9PVw0yJvp Hzh0yVo8hJvHTbB/d1nHq0OY8RB/TjVZrVXbJ0ZcD5+V5ooZoHCK1yc1CrV5Lw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4fxbh96Y15zXQQ for ; Fri, 17 Apr 2026 00:42:49 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 426b8 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Fri, 17 Apr 2026 00:42:49 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: 52aed375638d - stable/15 - libthr.3: describe SIGTHR 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: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org 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/15 X-Git-Reftype: branch X-Git-Commit: 52aed375638dc5278a28c515fe9a0cdcf6c0aaa9 Auto-Submitted: auto-generated Date: Fri, 17 Apr 2026 00:42:49 +0000 Message-Id: <69e18209.426b8.5063a157@gitrepo.freebsd.org> The branch stable/15 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=52aed375638dc5278a28c515fe9a0cdcf6c0aaa9 commit 52aed375638dc5278a28c515fe9a0cdcf6c0aaa9 Author: Konstantin Belousov AuthorDate: 2026-04-13 23:42:51 +0000 Commit: Konstantin Belousov CommitDate: 2026-04-17 00:42:38 +0000 libthr.3: describe SIGTHR (cherry picked from commit 934a35ac2bbbcf8cd65d8824fa824eb5c6170c88) --- lib/libthr/libthr.3 | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/lib/libthr/libthr.3 b/lib/libthr/libthr.3 index 8c7b84490547..5d9c5ec6706b 100644 --- a/lib/libthr/libthr.3 +++ b/lib/libthr/libthr.3 @@ -269,6 +269,25 @@ the critical section. This should be taken into account when interpreting .Xr ktrace 1 logs. +.Pp +The +.Nm +library uses the +.Va SIGTHR +signal for internal operations, in particular, +for cancellation requests. +This signal's masking and disposition is controlled by the library, +and user programs should not try to modify them. +The library interposes functions controlling signals to prevent +inadvertent modifications and to guard portable code against +exposure to +.Va SIGTHR . +.Pp +Note: similarly, the +.Va SIGLIBRT +signal is reserved for use by +.Lb librt , +and should be not modified by users. .Sh PROCESS-SHARED SYNCHRONIZATION OBJECTS In the .Li libthr