From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:48377) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UN3M9-00067z-Qk for qemu-devel@nongnu.org; Tue, 02 Apr 2013 11:42:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UN3M8-0001k9-3Y for qemu-devel@nongnu.org; Tue, 02 Apr 2013 11:42:41 -0400 Received: from speedy.comstyle.com ([2001:470:1d:8c::2]:23539 helo=mail.comstyle.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UN3M7-0001gJ-VV for qemu-devel@nongnu.org; Tue, 02 Apr 2013 11:42:40 -0400 Received: from rox.home.comstyle.com (unknown [IPv6:2001:470:b01e:3:74d6:bfdc:d79a:d94d]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: brad) by mail.comstyle.com (Postfix) with ESMTPSA id 5C19A3F679 for ; Tue, 2 Apr 2013 11:42:25 -0400 (EDT) Date: Tue, 2 Apr 2013 11:42:17 -0400 From: Brad Smith Message-ID: <20130402154214.GJ26146@rox.home.comstyle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: [Qemu-devel] [PATCH] Add configure clock_gettime() monotonic time test List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Replace the hardcoded list of OS's utilizing clock_gettime() for monotonic time with a configure test. This is to fix the use of monotonic time on OpenBSD but allows for other POSIX compliant OS's such as NetBSD to also utilize clock_gettime(). Signed-off-by: Brad Smith diff --git a/configure b/configure index fbea75e..352d6a6 100755 --- a/configure +++ b/configure @@ -2896,6 +2896,21 @@ if test "$darwin" != "yes" -a "$mingw32" != "yes" -a "$solaris" != yes -a \ fi ########################################## +# clock_gettime() probe, used for monotonic time +clock_monotonic="no" +cat > $TMPC << EOF +#include +int main(void) +{ + clock_gettime(CLOCK_MONOTONIC, NULL); + return 0; +} +EOF +if compile_prog "" "" ; then + clock_monotonic="yes" +fi + +########################################## # spice probe if test "$spice" != "no" ; then cat > $TMPC << EOF @@ -3671,6 +3686,9 @@ fi if test "$bswap_h" = "yes" ; then echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak fi +if test "$clock_monotonic" = "yes" ; then + echo "CONFIG_CLOCK_MONOTONIC=y" >> $config_host_mak +fi if test "$curl" = "yes" ; then echo "CONFIG_CURL=y" >> $config_host_mak echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak diff --git a/include/qemu/timer.h b/include/qemu/timer.h index 1766b2d..d87dfa4 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -117,8 +117,7 @@ extern int use_rt_clock; static inline int64_t get_clock(void) { -#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ - || defined(__DragonFly__) || defined(__FreeBSD_kernel__) +#ifdef CONFIG_CLOCK_MONOTONIC if (use_rt_clock) { struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); diff --git a/util/qemu-timer-common.c b/util/qemu-timer-common.c index 16f5e75..1506942 100644 --- a/util/qemu-timer-common.c +++ b/util/qemu-timer-common.c @@ -49,9 +49,7 @@ int use_rt_clock; static void __attribute__((constructor)) init_get_clock(void) { use_rt_clock = 0; -#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ - || defined(__DragonFly__) || defined(__FreeBSD_kernel__) \ - || defined(__OpenBSD__) +#ifdef CONFIG_CLOCK_MONOTONIC { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.