From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Mym5R-0005C4-SZ for qemu-devel@nongnu.org; Fri, 16 Oct 2009 08:39:13 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Mym5L-0005A4-9V for qemu-devel@nongnu.org; Fri, 16 Oct 2009 08:39:11 -0400 Received: from [199.232.76.173] (port=37636 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Mym5L-00059u-5E for qemu-devel@nongnu.org; Fri, 16 Oct 2009 08:39:07 -0400 Received: from cantor.suse.de ([195.135.220.2]:35464 helo=mx1.suse.de) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Mym5J-0005iT-Fd for qemu-devel@nongnu.org; Fri, 16 Oct 2009 08:39:06 -0400 From: Ulrich Hecht Date: Fri, 16 Oct 2009 14:38:53 +0200 Message-Id: <1255696735-21396-8-git-send-email-uli@suse.de> In-Reply-To: <1255696735-21396-7-git-send-email-uli@suse.de> References: <1255696735-21396-1-git-send-email-uli@suse.de> <1255696735-21396-2-git-send-email-uli@suse.de> <1255696735-21396-3-git-send-email-uli@suse.de> <1255696735-21396-4-git-send-email-uli@suse.de> <1255696735-21396-5-git-send-email-uli@suse.de> <1255696735-21396-6-git-send-email-uli@suse.de> <1255696735-21396-7-git-send-email-uli@suse.de> Subject: [Qemu-devel] [PATCH 7/9] linux-user: dup3, fallocate syscalls List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: riku.voipio@iki.fi, agraf@suse.de implementations of dup3 and fallocate that are good enough to fool LTP dup3 check, fallocate check fixed use compile_prog Signed-off-by: Ulrich Hecht --- configure | 36 ++++++++++++++++++++++++++++++++++++ linux-user/syscall.c | 10 ++++++++++ 2 files changed, 46 insertions(+), 0 deletions(-) diff --git a/configure b/configure index 64be51f..30ecd8f 100755 --- a/configure +++ b/configure @@ -1573,6 +1573,36 @@ if compile_prog "" "" ; then eventfd=yes fi +# check for fallocate +fallocate=no +cat > $TMPC << EOF +#include + +int main(void) +{ + fallocate(0, 0, 0, 0); + return 0; +} +EOF +if compile_prog "" "" ; then + fallocate=yes +fi + +# check for dup3 +dup3=no +cat > $TMPC << EOF +#include + +int main(void) +{ + dup3(0, 0, 0); + return 0; +} +EOF +if compile_prog "" "" ; then + dup3=yes +fi + # Check if tools are available to build documentation. if test "$docs" != "no" ; then if test -x "`which texi2html 2>/dev/null`" -a \ @@ -1954,6 +1984,12 @@ fi if test "$eventfd" = "yes" ; then echo "CONFIG_EVENTFD=y" >> $config_host_mak fi +if test "$fallocate" = "yes" ; then + echo "CONFIG_FALLOCATE=y" >> $config_host_mak +fi +if test "$dup3" = "yes" ; then + echo "CONFIG_DUP3=y" >> $config_host_mak +fi if test "$inotify" = "yes" ; then echo "CONFIG_INOTIFY=y" >> $config_host_mak fi diff --git a/linux-user/syscall.c b/linux-user/syscall.c index f2a53d5..4991154 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4747,6 +4747,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_NR_dup2: ret = get_errno(dup2(arg1, arg2)); break; +#if defined(TARGET_NR_dup3) && defined(CONFIG_DUP3) + case TARGET_NR_dup3: + ret = get_errno(dup3(arg1, arg2, arg3)); + break; +#endif #ifdef TARGET_NR_getppid /* not on alpha */ case TARGET_NR_getppid: ret = get_errno(getppid()); @@ -7022,6 +7027,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #endif #endif /* CONFIG_EVENTFD */ +#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) + case TARGET_NR_fallocate: + ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); + break; +#endif default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num); -- 1.6.2.1