From patchwork Tue Feb 2 15:11:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella X-Patchwork-Id: 41900 X-Patchwork-Delegate: azanella@linux.vnet.ibm.com Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 90A5F398B166; Tue, 2 Feb 2021 15:11:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 90A5F398B166 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1612278710; bh=rN7qZxCRG5QszL9noYacvE6M74GjyFOWWn+yuqUSEug=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=qn8r9q8qVcGsHgDj3PsZI8mz93gVK6rgPzMPxwehOpuIoZwrG2CkgIbtnK2LHHjk2 pXADHWkB6D4xKyGXXBb16Z4Gr78VFDs+dDa/RpKiA3lbSaMBG0pYsT5W4C87PTrkvC U5repkpt3AL6O5+ZEj/DN6G0PiglZP8jqInDEZhA= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-qt1-x82f.google.com (mail-qt1-x82f.google.com [IPv6:2607:f8b0:4864:20::82f]) by sourceware.org (Postfix) with ESMTPS id ACB26398B162 for ; Tue, 2 Feb 2021 15:11:47 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org ACB26398B162 Received: by mail-qt1-x82f.google.com with SMTP id l23so15082598qtq.13 for ; Tue, 02 Feb 2021 07:11:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=rN7qZxCRG5QszL9noYacvE6M74GjyFOWWn+yuqUSEug=; b=rVkrkF/2MJt4evEO+XSPJTzEhD6MsOeJWk/nlRkr9b/3pG+YUdmDno0ErS5LP6tWAd fV90QXKAJDLgXXdfhfAydY+n5OatdLwZhigUxvbeW6lccVKvnHmykUKNF11K4stz7Xyo nZfyQTaRy7j2eCbIvElz3wz1YmtluIHt+vJWNs3QRivEt/Aphnq8PtvLEl4cHDbzfVS1 mS9+e1Xo5wsRA3krJyw0OsiWPUchl9oI14kkvtquXdy5K76671/sIfK+OUnuLOKyE44A FWmw2qSBW4bBopN++omjC9QbVZS9P5vbRW60QCYT5tF9ONFVyuJnr+9BnZu91dWchfJt kQWw== X-Gm-Message-State: AOAM531cH0mRvf1HfLVBNfQEFf6cWmVry+J5PItuDjlHV0RPZ6q7rh7A Z0DtlRomDVp8jGIQsxKQizJejOpmcZhGvg== X-Google-Smtp-Source: ABdhPJyClQETAoo6v60zzbmFkxRUG5UcXqAfNsNrjwFPKCpWaEG2bl94NLSt0IKd2PeRQLdoib7BZQ== X-Received: by 2002:ac8:7b52:: with SMTP id m18mr20680075qtu.312.1612278707103; Tue, 02 Feb 2021 07:11:47 -0800 (PST) Received: from localhost.localdomain ([177.194.48.209]) by smtp.googlemail.com with ESMTPSA id z20sm16617267qki.93.2021.02.02.07.11.46 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Feb 2021 07:11:46 -0800 (PST) To: libc-alpha@sourceware.org Subject: [PATCH 5/8] posix: Do not clobber errno by atfork handlers Date: Tue, 2 Feb 2021 12:11:31 -0300 Message-Id: <20210202151134.2123748-5-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210202151134.2123748-1-adhemerval.zanella@linaro.org> References: <20210202151134.2123748-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-13.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Adhemerval Zanella via Libc-alpha From: Adhemerval Zanella Reply-To: Adhemerval Zanella Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Checked on x86_64-linux-gnu. --- posix/fork.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/posix/fork.c b/posix/fork.c index 4c9e60f187..7f27fb8338 100644 --- a/posix/fork.c +++ b/posix/fork.c @@ -68,7 +68,7 @@ __libc_fork (void) } pid_t pid = _Fork (); - + int save_errno = errno; if (pid == 0) { /* Reset the lock state in the multi-threaded case. */ @@ -107,6 +107,8 @@ __libc_fork (void) __run_fork_handlers (pid == 0 ? atfork_run_child : atfork_run_parent, multiple_threads); + if (pid < 0) + __set_errno (save_errno); return pid; } weak_alias (__libc_fork, __fork)