From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D0F172FD1A5 for ; Sat, 2 May 2026 07:25:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777706744; cv=none; b=CqOw/l1IrN8zPo5DRg3Pc/ETSX+hlBWZYlEJl48jsSa1/5i+1p4WRP+RlPDuyL6M8dnioq4mano32wv5U2IvPdhJcNgYalxs885hN8QJYXsG3eZHkRNbtqev++l4/cs69iWuAUGBZ0QTve00rIfXx/sl+Oh/KhdXWcieEERz9qg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777706744; c=relaxed/simple; bh=goxwQvYKheDa+4IdPejGu8ckzu98hdrBAscoKpekVB0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=J5jFNg7084qDkZRbdKd2Mncv0dzgnQq8VSINTokKEjxwrTBeWOmfkW77nCftey3uZRChL7dyYRsfV0awYsF3g6ta08UlglqwrGFm33WnV1L41JMDj875A6Ot4ckjGTEbMoWMP/Hd0C672TWD2ebItIUBXQswpqowFWoa2KnQQ2g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=thingy.jp; spf=pass smtp.mailfrom=0x0f.com; dkim=pass (1024-bit key) header.d=thingy.jp header.i=@thingy.jp header.b=ngb/HiL7; arc=none smtp.client-ip=209.85.216.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=thingy.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=0x0f.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=thingy.jp header.i=@thingy.jp header.b="ngb/HiL7" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-364f7c42c62so670495a91.0 for ; Sat, 02 May 2026 00:25:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=thingy.jp; s=google; t=1777706742; x=1778311542; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=EHg2lh0SccRAp3ZgX7RQA5jNSu0aHR8ZrJaT8NgNqlo=; b=ngb/HiL76BeRISY6ghQ1ALJMCJWwGbR+Z1CIG/E9P4M3FM4FrKcyXwwMc7c0i+mNOL iJY1RZ6Okwbn2j5Ft7bpLegm1lgMX4+kyzdpDqMrc0dER1Tl2PWlaHMRzz8jlPiuLUk8 lsce3+UU2GQDyvRXvuuLOzvJjfKZj6tdE5DZw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777706742; x=1778311542; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=EHg2lh0SccRAp3ZgX7RQA5jNSu0aHR8ZrJaT8NgNqlo=; b=j7d1ZMVAYw/HHNeKAnYQ0Sp7L60B8TJ9CcDOgt+FjwRiU8f778Fmxgc2UL+iyL4lb0 +ungfy7P+dX7ViTsCTLtF9xTmeaIZe728HZ32MVtwxu6+CwE9Y6J8VJHghA1W3IY3ZTA UptfDvG+tuqpyrNIwOyneuh3VdL5Q1zFY/jgK1m0nA5W4L4cesLVvx+3dhODAle+ANfa I6o9O+hPJO8gwGxEbw1LmXoPzSHQgpJaHVOxAj7eheYlPoMcLlCoxXj28VFcybATQuMc V+67iHfyWO4ZCQVgetXqpxKGeu5lm1d1LqHtmYI/MGEtt8jr+46AYRLSr4IZOmiZdow+ 7NSw== X-Gm-Message-State: AOJu0Yyq9ftasB3fneGSQ23Pw4vfDeUi2RIK8kq8P9zzycsZamhG6qTv I3YHYqy5ahcY6fY7lB3YWN7cCqSmuJxsvwcB0uyvdTV/rCNI5oaQz8GsDBGAKspyjq8= X-Gm-Gg: AeBDietlrSUxIWLx6byCtvwNXRPxGmLe9buyrxaZT+OGD9RDoOVrXbbIC9hwfuwQN1Q 17w9ie6spnfYUNx4/AFMbkpKbMx0xkXPpXCu9ElWvA8PPUQtU1NoGi1Wj2xg/tWS9lzJjfixBsJ fWHR5p5XaSRDMEgE4NTNwssTKGLITPoHWWBEO7OdnC1EH2Xx60RFyQndAbSkoRN/VeIf3x2ifTK UwVKk+0ixwDj0pGICvM9ksfYvSdZLcuwfKB2+uQ4h/F1jCCKCQdn7+DpSv25JIRX40nTsoOd8SV M/jT/80znNsqCa2T20ZiUwz58hMLd5nIBvmrQTsISnj6P60dqeZEgjuQ4bOQ1ZMA/i16GNEfNsR Fzha4cqVq6Q9zme6709wkKvH0pwe3xh48nPZXEDK66TSyxiKTzY6FZkfQJeF9thLYl/MXrOzZLR zHc0SkmiFjSu4UrelMu2G0+pUrHvC/Gk6md7ubIXBCwL2jtWd22S9YWvY1HeIPVUWolmzSy7XXt 6VpX/MmT3wNq1SXMwtaOuY2CWU= X-Received: by 2002:a17:90b:5890:b0:35b:e529:2d60 with SMTP id 98e67ed59e1d1-3650cd95fc6mr2363542a91.8.1777706742333; Sat, 02 May 2026 00:25:42 -0700 (PDT) Received: from kinako.work.home.arpa (p1387170-ipxg00a01sizuokaden.shizuoka.ocn.ne.jp. [153.221.239.170]) by smtp.googlemail.com with ESMTPSA id 98e67ed59e1d1-364ebf12bcesm4287557a91.7.2026.05.02.00.25.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 May 2026 00:25:41 -0700 (PDT) From: Daniel Palmer To: w@1wt.eu, linux@weissschuh.net Cc: linux-kernel@vger.kernel.org, Daniel Palmer Subject: [PATCH 2/3] tools/nolibc: unistd: Add readlink() Date: Sat, 2 May 2026 16:25:26 +0900 Message-ID: <20260502072527.1805108-3-daniel@thingy.jp> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260502072527.1805108-1-daniel@thingy.jp> References: <20260502072527.1805108-1-daniel@thingy.jp> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add readlink(). This is needed to test getcwd(); Signed-off-by: Daniel Palmer --- tools/include/nolibc/unistd.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index c7f89c56bc9b..309a4e0e65d2 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -84,6 +84,26 @@ int msleep(unsigned int msecs) return 0; } +/* + * ssize_t readlink(const char *path, char *buf, size_t bufsiz); + */ + +static __attribute__((unused)) +ssize_t _sys_readlink(const char *path, char *buf, size_t bufsiz) +{ +#ifdef __NR_readlink + return __nolibc_syscall3(__NR_readlink, path, buf, bufsiz); +#else + return __nolibc_syscall4(__NR_readlinkat, AT_FDCWD, path, buf, bufsiz); +#endif +} + +static __attribute__((unused)) +ssize_t readlink(const char *path, char *buf, size_t bufsiz) +{ + return __sysret(_sys_readlink(path, buf, bufsiz)); +} + static __attribute__((unused)) unsigned int sleep(unsigned int seconds) { -- 2.53.0