linux-user: Add support for syncfs() syscall
This patch implements Qemu user mode syncfs() syscall support. Syscall
syncfs() syncs the filesystem containing file determined by the open
file descriptor passed as the argument to syncfs().
The implementation consists of a straightforward invocation of host's
syncfs(). Configure and strace support is included as well.
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
diff --git a/configure b/configure
index 1ce3d00..d3dafcb 100755
--- a/configure
+++ b/configure
@@ -3926,6 +3926,21 @@
clock_adjtime=yes
fi
+# syncfs probe
+syncfs=no
+cat > $TMPC <<EOF
+#include <unistd.h>
+
+int main(void)
+{
+ return syncfs(0);
+}
+EOF
+syncfs=no
+if compile_prog "" "" ; then
+ syncfs=yes
+fi
+
# Check if tools are available to build documentation.
if test "$docs" != "no" ; then
if has makeinfo && has pod2man; then
@@ -5214,6 +5229,9 @@
if test "$clock_adjtime" = "yes" ; then
echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
fi
+if test "$syncfs" = "yes" ; then
+ echo "CONFIG_SYNCFS=y" >> $config_host_mak
+fi
if test "$inotify" = "yes" ; then
echo "CONFIG_INOTIFY=y" >> $config_host_mak
fi
