From nobody Sun Jun 29 00:30:02 2025 X-Original-To: dev-commits-src-all@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 4bV9DC5Ftzz60fwp; Sun, 29 Jun 2025 00:30:03 +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 "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4bV9DB4kLHz3bs3; Sun, 29 Jun 2025 00:30:02 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1751157002; 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=g68bhkV3dYTjBID/3o2nLs4vhHTlO35fhxvIOT1rFrc=; b=nQWVTxJDAWZOXjbIQG/300GHgru9fiQ7QRUqd4lCRnFV0osXZbUuIhajnYetWkPFT/T0tu 36eKIFKtvI+BHnZncMrGj6Fl6av6HzFPmFurKFc1zzE1PV8seQf5b9qw7bjTzUW6CSo+ya SH7lbDF+ssWPhoQ7YwedRujKZkeA8/2a4QM6kK8erJaT0a0PN9qL5o5VDWLqUH8JdYnMAi by4ZEHpcpShXvJEefXvNGWUSjHBVjxEHZtnUIT8qMWfY78Nc81rdSObA1qYgHnMkAIvhTH L8Ch4Klj0f4KxXLnmtM59NjIo+T3kV+WAgvHg5QI3kZRCGQrEhMagSooLPekbA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1751157002; 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=g68bhkV3dYTjBID/3o2nLs4vhHTlO35fhxvIOT1rFrc=; b=HlJ6YPh8RIYCJ8ArOERR+mynkgxENA91QK9yde+T+lkR7Nwfj4bJs6m5c7kuRo/IkRKHIA 0qhr2PHSzRDeHpQxgwSlsBO2Mbo4F24eOiP2rYXZwX8pxOlsD091pdzBRBzY7icGdjdOjF egi7QJRRdkvft9pA3c7I/DWvAdnqBNtrRUG5nZQz8H9IklFyCAf4tDOMv69jHrygXGY3A/ /pZimLzLXGqHEtpT6BN9mcvt8csgpaFCN1FwL8cWGGCT3TfkghKmuQUx7l3bP/wcz1+gUj iw+BxfcA/avY3JOPVJFsRilqBLQZuwczHzHaGWS3t0aBKPKUJfWEaRKMAl5iyg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1751157002; a=rsa-sha256; cv=none; b=JVuPXj8SzfCRIl6L4BQnTnu/4jujQVawSIhu6a89RI1Tfsxa85LseX8SguQRT2MulyEmFD LREbY28683nmOjNM/5XTPu1J2+4hNxJmG8B+KjlZT++4EJ84Epw6vQvSLCzHJAScQa0bY7 9gd1dOboF/wS220OODbVZnFyGuKaV+/7rdohLUv2E/MWc0R65S20AqGLMSpKq8wy9L1Ei3 d0LcbhiGK3cYBjnbS9NG+D35K2rnJwS+soT38HIxgzOOtN0f4J5uD+0Lo+eDnDPNd7tI0a MZii5KqX14vheD12w2615mz1LnCWuL1191BnXt58Sp6ka55KnMZkjN3PUaUrig== 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 4bV9DB42xNzwZJ; Sun, 29 Jun 2025 00:30:02 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 55T0U2pi086653; Sun, 29 Jun 2025 00:30:02 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 55T0U2XK086649; Sun, 29 Jun 2025 00:30:02 GMT (envelope-from git) Date: Sun, 29 Jun 2025 00:30:02 GMT Message-Id: <202506290030.55T0U2XK086649@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: 3131e7a41725 - stable/14 - csu: C standard requires errno on main() entry List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@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/14 X-Git-Reftype: branch X-Git-Commit: 3131e7a41725acd53d7612da8cb9de278f81e244 Auto-Submitted: auto-generated The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=3131e7a41725acd53d7612da8cb9de278f81e244 commit 3131e7a41725acd53d7612da8cb9de278f81e244 Author: Konstantin Belousov AuthorDate: 2025-06-23 23:46:43 +0000 Commit: Konstantin Belousov CommitDate: 2025-06-29 00:29:12 +0000 csu: C standard requires errno on main() entry (cherry picked from commit 64584008139f73b07fa7c7979c41780be458b8cc) --- lib/libc/csu/libc_start1.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/libc/csu/libc_start1.c b/lib/libc/csu/libc_start1.c index f0e708e405ce..a1887a2c28c0 100644 --- a/lib/libc/csu/libc_start1.c +++ b/lib/libc/csu/libc_start1.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include "libc_private.h" @@ -154,6 +155,13 @@ __libc_start1(int argc, char *argv[], char *env[], void (*cleanup)(void), } handle_static_init(argc, argv, env); + + /* + * C17 4.3 paragraph 3: + * The value of errno in the initial thread is zero at program + * startup. + */ + errno = 0; exit(mainX(argc, argv, env)); } @@ -182,5 +190,6 @@ __libc_start1_gcrt(int argc, char *argv[], char *env[], monstartup(eprolp, etextp); handle_static_init(argc, argv, env); + errno = 0; exit(mainX(argc, argv, env)); }