Add support for the setns and unshare syscalls, trivially passed through to
the host. Based on patches by Paul Burton, added configure check.
Signed-off-by: Paul Burton <paul@archlinuxmips.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
+# check for setns and unshare support
+setns=no
+cat > $TMPC << EOF
+#include <sched.h>
+
+int main(void)
+{
+ int ret;
+ ret = setns(0, 0);
+ ret = unshare(0);
+ return ret;
+}
+EOF
+if compile_prog "" "" ; then
+ setns=yes
+fi
+
# Check if tools are available to build documentation.
if test "$docs" != "no" ; then
if has makeinfo && has pod2man; then
# Check if tools are available to build documentation.
if test "$docs" != "no" ; then
if has makeinfo && has pod2man; then
if test "$timerfd" = "yes" ; then
echo "CONFIG_TIMERFD=y" >> $config_host_mak
fi
if test "$timerfd" = "yes" ; then
echo "CONFIG_TIMERFD=y" >> $config_host_mak
fi
+if test "$setns" = "yes" ; then
+ echo "CONFIG_SETNS=y" >> $config_host_mak
+fi
if test "$inotify" = "yes" ; then
echo "CONFIG_INOTIFY=y" >> $config_host_mak
fi
if test "$inotify" = "yes" ; then
echo "CONFIG_INOTIFY=y" >> $config_host_mak
fi
#ifdef TARGET_NR_set_mempolicy
{ TARGET_NR_set_mempolicy, "set_mempolicy" , NULL, NULL, NULL },
#endif
#ifdef TARGET_NR_set_mempolicy
{ TARGET_NR_set_mempolicy, "set_mempolicy" , NULL, NULL, NULL },
#endif
+#ifdef TARGET_NR_setns
+{ TARGET_NR_setns, "setns" , NULL, NULL, NULL },
+#endif
#ifdef TARGET_NR_setpgid
{ TARGET_NR_setpgid, "setpgid" , NULL, NULL, NULL },
#endif
#ifdef TARGET_NR_setpgid
{ TARGET_NR_setpgid, "setpgid" , NULL, NULL, NULL },
#endif
+#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
+ case TARGET_NR_setns:
+ ret = get_errno(setns(arg1, arg2));
+ break;
+#endif
+#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
+ case TARGET_NR_unshare:
+ ret = get_errno(unshare(arg1));
+ break;
+#endif
+
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);