From patchwork Wed Jun 29 00:27:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ammar Faizi X-Patchwork-Id: 12899123 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 F0711C43334 for ; Wed, 29 Jun 2022 00:28:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229933AbiF2A22 (ORCPT ); Tue, 28 Jun 2022 20:28:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229935AbiF2A22 (ORCPT ); Tue, 28 Jun 2022 20:28:28 -0400 Received: from gnuweeb.org (gnuweeb.org [51.81.211.47]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE9B1220C5 for ; Tue, 28 Jun 2022 17:28:27 -0700 (PDT) Received: from integral2.. (unknown [180.245.197.13]) by gnuweeb.org (Postfix) with ESMTPSA id 973327FE70; Wed, 29 Jun 2022 00:28:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gnuweeb.org; s=default; t=1656462507; bh=MXth1xu2tuAlKa4FtMyb3VUpFNE681275yqlUL+dsfI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=b/T1RPwQIoIr5zM0uBWllw2md8R6w6uVLIE8Gs8Ena3w7o5Bv7ZocSyKUfSUVp2L/ Rp+zMVrsymrrZN7qflB2B0ZYTPss0/qEnQLD9tKXcvA5IIanK09BMLBUnXlMHCMxPT LxoiMOBGMoOQxbLywQ4afwBWwWV55/dnejMALM7gZzJra0u7ru0at7FUCloiL4ZrYz KeOgz0L/4PAxoVyN0JhBteDlUksyNeh8jKihiXc2UGsy7n/NAXFIlSiCR8iHZFHHnS 8TKjNOj2mivfHIMrodGQaL922HNecT0sSiq3SR8TyzOnrQ0QLVyxIGBoVBcNN7Y5cM Sv7uZ573qMOrg== From: Ammar Faizi To: Jens Axboe Cc: Ammar Faizi , Alviro Iskandar Setiawan , Fernanda Ma'rouf , Pavel Begunkov , Hao Xu , io-uring Mailing List , GNU/Weeb Mailing List Subject: [PATCH liburing v1 4/9] arch: syscall: Add `__sys_read()` syscall Date: Wed, 29 Jun 2022 07:27:48 +0700 Message-Id: <20220629002028.1232579-5-ammar.faizi@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220629002028.1232579-1-ammar.faizi@intel.com> References: <20220629002028.1232579-1-ammar.faizi@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org From: Ammar Faizi A prep patch to support aarch64 nolibc. We will use this to get the page size by reading /proc/self/auxv. Signed-off-by: Ammar Faizi --- src/arch/generic/syscall.h | 7 +++++++ src/arch/syscall-defs.h | 5 +++++ 2 files changed, 12 insertions(+) diff --git a/src/arch/generic/syscall.h b/src/arch/generic/syscall.h index 71b2234..22252a1 100644 --- a/src/arch/generic/syscall.h +++ b/src/arch/generic/syscall.h @@ -50,6 +50,13 @@ static inline int __sys_open(const char *pathname, int flags, mode_t mode) return (ret < 0) ? -errno : ret; } +static inline ssize_t __sys_read(int fd, void *buffer, size_t size) +{ + ssize_t ret; + ret = read(fd, buffer, size); + return (ret < 0) ? -errno : ret; +} + static inline void *__sys_mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) { diff --git a/src/arch/syscall-defs.h b/src/arch/syscall-defs.h index 0f67446..4b5ba40 100644 --- a/src/arch/syscall-defs.h +++ b/src/arch/syscall-defs.h @@ -10,6 +10,11 @@ static inline int __sys_open(const char *pathname, int flags, mode_t mode) return (int) __do_syscall3(__NR_open, pathname, flags, mode); } +static inline int __sys_read(int fd, void *buffer, size_t size) +{ + return (int) __do_syscall3(__NR_read, fd, buffer, size); +} + static inline void *__sys_mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) {