From patchwork Mon Jul 4 17:54:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ammar Faizi X-Patchwork-Id: 12905763 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 AB899C433EF for ; Mon, 4 Jul 2022 17:55:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230034AbiGDRzJ (ORCPT ); Mon, 4 Jul 2022 13:55:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53032 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229907AbiGDRzI (ORCPT ); Mon, 4 Jul 2022 13:55:08 -0400 Received: from gnuweeb.org (gnuweeb.org [51.81.211.47]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E469F646B for ; Mon, 4 Jul 2022 10:55:07 -0700 (PDT) Received: from integral2.. (unknown [36.81.65.188]) by gnuweeb.org (Postfix) with ESMTPSA id 5798A80253; Mon, 4 Jul 2022 17:55:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gnuweeb.org; s=default; t=1656957307; bh=nQlhcy4wn+3YUi2Lz76zhDc4GX+89GkCVH2Y2WwEKrw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sGtES5WaEzrfzLs+dd5ufRO0Wl2J87vgn2x+6+nFqoomMnldcW7zON4i2z+juEwtE rl5G9VklBbAfPHNGZLb5p/xXwJjguR8SEiZh6cxEvDj2WJTx0qn1z2b99QN+vBtbMM jiiweZaap3WUh+IKaSN+HrfshrRzRTqbpNPLEb8oK1IA+rr9IOjsQxSTio37wmMulz lt5pDmvd3Ndb7JqOvcNL436O/6XPnLB0mgBZtjAYyrvbvJHROJ6y2Jgq4ZxCEAmDvN VLlGXep8XxTMFxiK00YvN3VEJTc2wDkDTZktQYluPWreEQVr9G5UcAdP1tPEu7ZsdU 2hsEe4ked1xCw== From: Ammar Faizi To: Jens Axboe Cc: Ammar Faizi , Alviro Iskandar Setiawan , Fernanda Ma'rouf , Hao Xu , Pavel Begunkov , io-uring Mailing List , GNU/Weeb Mailing List Subject: [PATCH liburing v3 03/10] arch: syscall: Add `__sys_read()` syscall Date: Tue, 5 Jul 2022 00:54:29 +0700 Message-Id: <20220704174858.329326-4-ammar.faizi@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220704174858.329326-1-ammar.faizi@intel.com> References: <20220704174858.329326-1-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 Reviewed-by: Alviro Iskandar Setiawan --- 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 9d4424d..32750b5 100644 --- a/src/arch/syscall-defs.h +++ b/src/arch/syscall-defs.h @@ -17,6 +17,11 @@ static inline int __sys_open(const char *pathname, int flags, mode_t mode) #endif } +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) {