From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MUOFi-0001db-5p for qemu-devel@nongnu.org; Fri, 24 Jul 2009 13:08:14 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MUOFc-0001bU-T1 for qemu-devel@nongnu.org; Fri, 24 Jul 2009 13:08:13 -0400 Received: from [199.232.76.173] (port=33080 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MUOFc-0001bP-MP for qemu-devel@nongnu.org; Fri, 24 Jul 2009 13:08:08 -0400 Received: from cantor2.suse.de ([195.135.220.15]:33860 helo=mx2.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 1MUOFb-0000Q0-CX for qemu-devel@nongnu.org; Fri, 24 Jul 2009 13:08:08 -0400 From: Ulrich Hecht Date: Fri, 24 Jul 2009 19:10:26 +0200 Message-Id: <1248455432-12959-2-git-send-email-uli@suse.de> In-Reply-To: <1248455432-12959-1-git-send-email-uli@suse.de> References: <1248455432-12959-1-git-send-email-uli@suse.de> Subject: [Qemu-devel] [PATCH 1/7] 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 implementations of dup3 and fallocate that are good enough to fool LTP Signed-off-by: Ulrich Hecht --- configure | 18 ++++++++++++++++++ linux-user/syscall.c | 10 ++++++++++ 2 files changed, 28 insertions(+), 0 deletions(-) diff --git a/configure b/configure index 09c8443..68a18f5 100755 --- a/configure +++ b/configure @@ -1371,6 +1371,21 @@ if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then splice=yes fi +# check for fallocate +fallocate=no +cat > $TMPC << EOF +#include + +int main(void) +{ + fallocate(0, 0, 0, 0); + return 0; +} +EOF +if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then + fallocate=yes +fi + # Check if tools are available to build documentation. if test "$build_docs" = "yes" -a \( ! -x "`which texi2html 2>/dev/null`" -o ! -x "`which pod2man 2>/dev/null`" \) ; then build_docs="no" @@ -1720,6 +1735,9 @@ fi if test "$splice" = "yes" ; then echo "#define CONFIG_SPLICE 1" >> $config_host_h fi +if test "$fallocate" = "yes" ; then + echo "#define CONFIG_FALLOCATE 1" >> $config_host_h +fi if test "$inotify" = "yes" ; then echo "#define CONFIG_INOTIFY 1" >> $config_host_h fi diff --git a/linux-user/syscall.c b/linux-user/syscall.c index ca57dd9..b03e879 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4723,6 +4723,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_NR_dup2: ret = get_errno(dup2(arg1, arg2)); break; +#ifdef TARGET_NR_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()); @@ -6975,6 +6980,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #endif #endif /* CONFIG_SPLICE */ +#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