From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6F8BDC04A94 for ; Tue, 1 Aug 2023 20:08:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229773AbjHAUIb (ORCPT ); Tue, 1 Aug 2023 16:08:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229606AbjHAUIa (ORCPT ); Tue, 1 Aug 2023 16:08:30 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12F9D213E for ; Tue, 1 Aug 2023 13:08:30 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id d9443c01a7336-1bba9539a23so8251525ad.1 for ; Tue, 01 Aug 2023 13:08:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1690920509; x=1691525309; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=cyM/dP+D3U6XSy8Hs2ZbgBd+HnEPAyJWPt8OQCl8Ls0=; b=SL/5IvheZcN5py7r/yOCmMFSyq3KOlQ8iIyrXw0FcNVixmH90Xb0nJQD/FG1PNbwdp 1tqEkuKbQ1NVEiB4X6LnuaB1ea66wcJoA/IgLaT5kwnJ+wPnGDVS621vWsb1BJ3PpWzK wuF98I1MTowiW+1VgSlEVGUh3K7A7LST8ZjN8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690920509; x=1691525309; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=cyM/dP+D3U6XSy8Hs2ZbgBd+HnEPAyJWPt8OQCl8Ls0=; b=LKEilX7USzaCraJiaw3LqCj4x7xsE1zg6Ynqr19obtQZjK4AuZAmnm4r62uYVxTmHN 3HrAbdmxPZfZ/Sz/b5IkaN+1ecz2NN7HSmYJriNcyYUJmMW1ydTnDH+QhaAp5VRtjpXw 2woC6S2tG4nr2q/rlj3S0EcTjxSqHZdJGMo36rp05YEjWKeJjA+6Sbzi8iTg2mZ45Ih4 s8BW0fdDFC8gDLQ9/BxpA2IviIMTldaiet0vTtSNNtxBuHFtPO0PCRa74MQ/TqJIc+Nn /EryuVG8ieOCOyzzj5lkYIx4JrOOZjHVGpVLJhxt5AUGzMrlJbvmvbyeAd0ib4yyNkMw mr3w== X-Gm-Message-State: ABy/qLaYkgOEULBKH01IBScpWDeLsYqEZL1+NSb6oFlGbJLWq2XmXQWN OJNpp15H4T5DrrrGty5fZ4SRzNGJ9HzCDhJnc1YTSQ== X-Google-Smtp-Source: APBJJlG7b5TCh8+9PpgLz+YkhRIVIZTne5WSuEr+NK3XswBrlwhbr7edszRi/47z0gaknymqqnHD6w== X-Received: by 2002:a17:902:db0f:b0:1b8:b0c4:2e3d with SMTP id m15-20020a170902db0f00b001b8b0c42e3dmr13221851plx.4.1690920509500; Tue, 01 Aug 2023 13:08:29 -0700 (PDT) Received: from lbrmn-mmayer.ric.broadcom.net ([192.19.161.248]) by smtp.gmail.com with ESMTPSA id v11-20020a170902d68b00b001b53d3d8f3dsm10807449ply.299.2023.08.01.13.08.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Aug 2023 13:08:29 -0700 (PDT) Received: by lbrmn-mmayer.ric.broadcom.net (Postfix, from userid 1000) id EE802496; Tue, 1 Aug 2023 13:08:27 -0700 (PDT) From: Markus Mayer To: util-linux mailing list Cc: Markus Mayer Subject: [PATCH] include: define pidfd syscalls if needed Date: Tue, 1 Aug 2023 13:08:24 -0700 Message-Id: <20230801200824.49768-1-mmayer@broadcom.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: util-linux@vger.kernel.org If the kernel headers are too old to provide the pidfd syscall numbers, let's define them ourselves. This can be helpful while cross-compiling. The runtime environment may provide a kernel that is new enough to handle the calls, even if the toolchain doesn't. Signed-off-by: Markus Mayer --- include/pidfd-utils.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/pidfd-utils.h b/include/pidfd-utils.h index 18f3c626ade9..ff0bc4c792fc 100644 --- a/include/pidfd-utils.h +++ b/include/pidfd-utils.h @@ -7,6 +7,20 @@ #ifdef HAVE_SYS_SYSCALL_H # include + +/* + * If the kernel headers are too old to provide the syscall numbers, let's + * define them ourselves. This can be helpful while cross-compiling. + */ +#ifndef __NR_pidfd_send_signal +#define __NR_pidfd_send_signal 424 +#define SYS_pidfd_send_signal __NR_pidfd_send_signal +#endif +#ifndef __NR_pidfd_open +#define __NR_pidfd_open 434 +#define SYS_pidfd_open __NR_pidfd_open +#endif + # if defined(SYS_pidfd_send_signal) && defined(SYS_pidfd_open) # ifdef HAVE_SYS_PIDFD_H # include -- 2.40.1