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[2001:4830:134:3::11]) by mx.google.com with ESMTPS id w5si11326271qcz.40.2014.08.15.04.03.12 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 15 Aug 2014 04:03:12 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Received: from localhost ([::1]:58536 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XIFHr-0006DC-SH for patch@linaro.org; Fri, 15 Aug 2014 07:03:11 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39382) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XIFGc-0004x5-7U for qemu-devel@nongnu.org; Fri, 15 Aug 2014 07:02:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XIFGU-00071w-Lw for qemu-devel@nongnu.org; Fri, 15 Aug 2014 07:01:54 -0400 Received: from afflict.kos.to ([92.243.29.197]:57589) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XIFGU-00071I-Ak for qemu-devel@nongnu.org; Fri, 15 Aug 2014 07:01:46 -0400 Received: from afflict.kos.to (afflict [92.243.29.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by afflict.kos.to (Postfix) with ESMTPSA id 9BA2B2658A; Fri, 15 Aug 2014 13:01:44 +0200 (CEST) From: riku.voipio@linaro.org To: qemu-devel@nongnu.org Date: Fri, 15 Aug 2014 14:01:25 +0300 Message-Id: <3418f4945378f60eea4f845af0784267c7f6c75d.1408100160.git.riku.voipio@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 92.243.29.197 Cc: Peter Maydell , Riku Voipio Subject: [Qemu-devel] [PULL 07/24] linux-user: support timerfd_{create, gettime, settime} syscalls X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: , List-Help: , List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: riku.voipio@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.174 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 From: Riku Voipio Adds support for the timerfd_create, timerfd_gettime & timerfd_settime syscalls, allowing use of timerfds by target programs. v2: By Riku - added configure check for timerfd and ifdefs for benefit of old distributions like RHEL5. Signed-off-by: Paul Burton Signed-off-by: Riku Voipio --- configure | 17 +++++++++++++++++ linux-user/strace.list | 9 +++++++++ linux-user/syscall.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+) diff --git a/configure b/configure index f7685b5..577e2b9 100755 --- a/configure +++ b/configure @@ -3420,6 +3420,20 @@ if compile_prog "" "" ; then sendfile=yes fi +# check for timerfd support (glibc 2.8 and newer) +timerfd=no +cat > $TMPC << EOF +#include + +int main(void) +{ + return(timerfd_create(CLOCK_REALTIME, 0)); +} +EOF +if compile_prog "" "" ; then + timerfd=yes +fi + # Check if tools are available to build documentation. if test "$docs" != "no" ; then if has makeinfo && has pod2man; then @@ -4486,6 +4500,9 @@ fi if test "$sendfile" = "yes" ; then echo "CONFIG_SENDFILE=y" >> $config_host_mak fi +if test "$timerfd" = "yes" ; then + echo "CONFIG_TIMERFD=y" >> $config_host_mak +fi if test "$inotify" = "yes" ; then echo "CONFIG_INOTIFY=y" >> $config_host_mak fi diff --git a/linux-user/strace.list b/linux-user/strace.list index fcb258d..8de972a 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1404,6 +1404,15 @@ #ifdef TARGET_NR_timer_settime { TARGET_NR_timer_settime, "timer_settime" , NULL, NULL, NULL }, #endif +#ifdef TARGET_NR_timerfd_create +{ TARGET_NR_timerfd_create, "timerfd_create" , NULL, NULL, NULL }, +#endif +#ifdef TARGET_NR_timerfd_gettime +{ TARGET_NR_timerfd_gettime, "timerfd_gettime" , NULL, NULL, NULL }, +#endif +#ifdef TARGET_NR_timerfd_settime +{ TARGET_NR_timerfd_settime, "timerfd_settime" , NULL, NULL, NULL }, +#endif #ifdef TARGET_NR_times { TARGET_NR_times, "times" , NULL, NULL, NULL }, #endif diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7c108ab..44853d0 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -58,6 +58,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base, #include #include #include +#include #include #include //#include @@ -9547,6 +9548,50 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, } #endif +#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD) + case TARGET_NR_timerfd_create: + ret = get_errno(timerfd_create(arg1, + target_to_host_bitmask(arg2, fcntl_flags_tbl))); + break; +#endif + +#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD) + case TARGET_NR_timerfd_gettime: + { + struct itimerspec its_curr; + + ret = get_errno(timerfd_gettime(arg1, &its_curr)); + + if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) { + goto efault; + } + } + break; +#endif + +#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD) + case TARGET_NR_timerfd_settime: + { + struct itimerspec its_new, its_old, *p_new; + + if (arg3) { + if (target_to_host_itimerspec(&its_new, arg3)) { + goto efault; + } + p_new = &its_new; + } else { + p_new = NULL; + } + + ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old)); + + if (arg4 && host_to_target_itimerspec(arg4, &its_old)) { + goto efault; + } + } + break; +#endif + default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num);