From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by sourceware.org (Postfix) with ESMTPS id 15085395CCAA for ; Thu, 30 Apr 2020 19:34:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 15085395CCAA Received: by mail-pf1-x444.google.com with SMTP id x77so365286pfc.0 for ; Thu, 30 Apr 2020 12:34:29 -0700 (PDT) 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=Aj3b/k1Pc131TIjwsUuWTQZ0O19XTFSwUSrJvlnSqz8=; b=iDZuXSbW3Xp0cZ+xTb7Rzhm85Ybgbb3OuUr5Zkp6XalYuX10bBc/jwftMiqBix406r wqd2llnbu7jNHjyRxN8wIKJF6g8Lg9UQ+hZdazLr704wAU1uVUqhuFU5zHiWu+Y0UNK6 wCO1/K3ygAeYaIT7L5UQ9PPlLHNINrzRj4l3flX/CdHlsP4Oe2Fz07+D1e9l30dB0jNW IS+NhiY8GlRofvSdel2pmQb2r/Y86mjETZ8sV8LdHQNbPPGWn2LhPbOiQD4nN8X5tlR0 +4Zi/SCzIsQuxRORV0KlKu+/P4vevqVpUvYtN3xEbc4Ub0hSQuxnlAQGZzGEAQntzV4E sqzg== X-Gm-Message-State: AGi0PuZcENa5XXgOusWQzg0uhWZyYtppLn0Cbp2zKVKhylDvlLEILm0u ZeEv4cXG55fHd5IQLJBeI1xzd8OH X-Google-Smtp-Source: APiQypLOpzQBhtcJpapNsxvPxEX/dDNBlEdPRNBFvfbhzRD/5rtPjhQxKphhELYCULa9oxaezXxg0w== X-Received: by 2002:a63:e643:: with SMTP id p3mr526406pgj.332.1588275267941; Thu, 30 Apr 2020 12:34:27 -0700 (PDT) Received: from gnu-cfl-2.localdomain (c-69-181-90-243.hsd1.ca.comcast.net. [69.181.90.243]) by smtp.gmail.com with ESMTPSA id h12sm469847pfq.176.2020.04.30.12.34.26 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Apr 2020 12:34:27 -0700 (PDT) Received: from gnu-cfl-2.localdomain (localhost [IPv6:::1]) by gnu-cfl-2.localdomain (Postfix) with ESMTP id 1A12A1A0120 for ; Thu, 30 Apr 2020 12:34:24 -0700 (PDT) From: "H.J. Lu" To: libc-stable@sourceware.org Subject: [2.31/2.30] [PATCH 5/6] Add C wrappers for process_vm_readv/process_vm_writev [BZ #25810] Date: Thu, 30 Apr 2020 12:34:22 -0700 Message-Id: <20200430193423.807713-6-hjl.tools@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200430193423.807713-1-hjl.tools@gmail.com> References: <20200430193423.807713-1-hjl.tools@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-25.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_SHORT, 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-stable@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-stable mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Apr 2020 19:34:37 -0000 Since the the U marker can only be applied to 2 unsigned long arguments in syscalls.list files, add a C wrapper for process_vm_readv and process_vm_writev syscals which have more than 2 unsigned long arguments. (cherry picked from commit ad9fd65d716f1ccd757b6b2feeee826d0f187ed4) --- sysdeps/unix/sysv/linux/Makefile | 3 +- sysdeps/unix/sysv/linux/process_vm_readv.c | 32 +++++++++++++++++++++ sysdeps/unix/sysv/linux/process_vm_writev.c | 32 +++++++++++++++++++++ sysdeps/unix/sysv/linux/syscalls.list | 2 -- 4 files changed, 66 insertions(+), 3 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/process_vm_readv.c create mode 100644 sysdeps/unix/sysv/linux/process_vm_writev.c diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index f12b7b1a2d..62f1642732 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -60,7 +60,8 @@ sysdep_routines += adjtimex clone umount umount2 readahead \ setfsuid setfsgid epoll_pwait signalfd \ eventfd eventfd_read eventfd_write prlimit \ personality epoll_wait tee vmsplice splice \ - open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get + open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get \ + process_vm_readv process_vm_writev CFLAGS-gethostid.c = -fexceptions CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables diff --git a/sysdeps/unix/sysv/linux/process_vm_readv.c b/sysdeps/unix/sysv/linux/process_vm_readv.c new file mode 100644 index 0000000000..e1377f7e50 --- /dev/null +++ b/sysdeps/unix/sysv/linux/process_vm_readv.c @@ -0,0 +1,32 @@ +/* process_vm_readv - Linux specific syscall. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include + +ssize_t +process_vm_readv (pid_t pid, const struct iovec *local_iov, + unsigned long int liovcnt, + const struct iovec *remote_iov, + unsigned long int riovcnt, unsigned long int flags) +{ + return INLINE_SYSCALL_CALL (process_vm_readv, pid, local_iov, + liovcnt, remote_iov, riovcnt, flags); +} diff --git a/sysdeps/unix/sysv/linux/process_vm_writev.c b/sysdeps/unix/sysv/linux/process_vm_writev.c new file mode 100644 index 0000000000..944ab9b7f1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/process_vm_writev.c @@ -0,0 +1,32 @@ +/* process_vm_writev - Linux specific syscall. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include + +ssize_t +process_vm_writev (pid_t pid, const struct iovec *local_iov, + unsigned long int liovcnt, + const struct iovec *remote_iov, + unsigned long int riovcnt, unsigned long int flags) +{ + return INLINE_SYSCALL_CALL (process_vm_writev, pid, local_iov, + liovcnt, remote_iov, riovcnt, flags); +} diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index 76dd308d82..5bb66d5481 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -102,8 +102,6 @@ name_to_handle_at EXTRA name_to_handle_at i:isppi name_to_handle_at setns EXTRA setns i:ii setns -process_vm_readv EXTRA process_vm_readv i:ipipii process_vm_readv -process_vm_writev EXTRA process_vm_writev i:ipipii process_vm_writev memfd_create EXTRA memfd_create i:si memfd_create pkey_alloc EXTRA pkey_alloc i:ii pkey_alloc pkey_free EXTRA pkey_free i:i pkey_free -- 2.26.2