From patchwork Wed Nov 2 19:26:41 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 17112 Received: (qmail 64489 invoked by alias); 2 Nov 2016 19:27:17 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 64257 invoked by uid 89); 2 Nov 2016 19:27:15 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy=H*MI:sk:1478114 X-HELO: mail-vk0-f49.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=hhewyBzu17nCPoFEr9hbgC9t7K7q2udOd8MqeQxn4is=; b=OP/dZ9JTCM0bomDa3+6ErDMVYEw9d4i9eN+RPCnIPnyIEPUPjhGVM1VGD0zYirF+zL UZ2/3qQuKS9Wlz6FodPgFsD+oLmf+kMwDQX2VnjOVSQ0xRbbjj2qvGnFU+6hi7cB0mwm xktORubwtCLQZ7NEGFSeeRFNYWl5Ru+OQcroMvUFdunQxEk5dejS3SYcU3arzNet0eaN WAfXl8ONVFsRILaC5h5zse9u4Mmfz6IQYgnOtUTDoL1S7eLTbqKpvtPMCWnDWsQUUhTA 1RsMhgOF3cLxOHjrWe6HWJD09tfHcru5P+ktzvEfLWMFT2N2MTU6qJ4kq+GkDc7m8at2 fJGA== X-Gm-Message-State: ABUngvdOLiSZajde2HjBUFjqBo9Ns+hXPg0Pc+G+w9I/YYUgbBuSwyuCiVxCqDTr9cQOoDlU X-Received: by 10.31.202.193 with SMTP id a184mr3803729vkg.134.1478114826093; Wed, 02 Nov 2016 12:27:06 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH v2 04/16] Use msgsnd syscall for Linux implementation Date: Wed, 2 Nov 2016 17:26:41 -0200 Message-Id: <1478114813-3526-5-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1478114813-3526-1-git-send-email-adhemerval.zanella@linaro.org> References: <1478114813-3526-1-git-send-email-adhemerval.zanella@linaro.org> Changes from previous version: - Use __ASSUME_SYSVIPC_SYSCALL instead of __NR_syscall to issue the wired syscall or the ipc one. --- This patch add a direct call to msgsnd syscall if it is supported by kernel features. hecked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/msgsnd.c (__libc_msgsnd): Use msgsnd syscall if defined. --- ChangeLog | 3 +++ sysdeps/unix/sysv/linux/msgsnd.c | 7 ++++--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/sysdeps/unix/sysv/linux/msgsnd.c b/sysdeps/unix/sysv/linux/msgsnd.c index 1457e43..4ed3a64 100644 --- a/sysdeps/unix/sysv/linux/msgsnd.c +++ b/sysdeps/unix/sysv/linux/msgsnd.c @@ -16,17 +16,18 @@ License along with the GNU C Library; if not, see . */ -#include #include #include - #include -#include int __libc_msgsnd (int msqid, const void *msgp, size_t msgsz, int msgflg) { +#ifdef __ASSUME_SYSVIPC_SYSCALL + return SYSCALL_CANCEL (msgsnd, msqid, msgp, msgsz, msgflg); +#else return SYSCALL_CANCEL (ipc, IPCOP_msgsnd, msqid, msgsz, msgflg, (void *) msgp); +#endif } weak_alias (__libc_msgsnd, msgsnd)