From 575b22b1b7a843f34f52ebc9c00fb1c967258912 Mon Sep 17 00:00:00 2001
From: Laurent Vivier <laurent@vivier.eu>
Date: Thu, 2 Jun 2016 22:14:15 +0200
Subject: linux-user: check if NETLINK_ROUTE is available

Some IFLA_* symbols can be missing in the host linux/if_link.h,
but as they are enums and not "#defines", check in "configure" if
last known  (IFLA_PROTO_DOWN) is available and if not, disable
management of NETLINK_ROUTE protocol.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---
 configure | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 6d01d96..d1dbc4b 100755
--- a/configure
+++ b/configure
@@ -4526,6 +4526,17 @@ if compile_prog "" "" ; then
     have_fsxattr=yes
 fi
 
+have_rtnetlink=no
+cat > $TMPC << EOF
+#include <linux/rtnetlink.h>
+int main(void) {
+  return IFLA_PROTO_DOWN;
+}
+EOF
+if compile_prog "" "" ; then
+    have_rtnetlink=yes
+fi
+
 ##########################################
 # End of CC checks
 # After here, no more $cc or $ld runs
@@ -5461,6 +5472,10 @@ if test "$rdma" = "yes" ; then
   echo "CONFIG_RDMA=y" >> $config_host_mak
 fi
 
+if test "$have_rtnetlink" = "yes" ; then
+  echo "CONFIG_RTNETLINK=y" >> $config_host_mak
+fi
+
 # Hold two types of flag:
 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
 #                                     a thread we have a handle to
-- 
cgit v1.1


From 227f02143f269493543faf6908318c17abd725cd Mon Sep 17 00:00:00 2001
From: Peter Maydell <peter.maydell@linaro.org>
Date: Mon, 6 Jun 2016 19:58:11 +0100
Subject: linux-user: Use safe_syscall wrapper for epoll_wait syscalls

Use the safe_syscall wrapper for epoll_wait and epoll_pwait syscalls.

Since we now directly use the host epoll_pwait syscall for both
epoll_wait and epoll_pwait, we don't need the configure machinery
to check whether glibc supports epoll_pwait(). (The kernel has
supported the syscall since 2.6.19 so we can assume it's always there.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---
 configure | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

(limited to 'configure')

diff --git a/configure b/configure
index d1dbc4b..e995ddd 100755
--- a/configure
+++ b/configure
@@ -3798,8 +3798,8 @@ if compile_prog "" "" ; then
   epoll=yes
 fi
 
-# epoll_create1 and epoll_pwait are later additions
-# so we must check separately for their presence
+# epoll_create1 is a later addition
+# so we must check separately for its presence
 epoll_create1=no
 cat > $TMPC << EOF
 #include <sys/epoll.h>
@@ -3821,20 +3821,6 @@ if compile_prog "" "" ; then
   epoll_create1=yes
 fi
 
-epoll_pwait=no
-cat > $TMPC << EOF
-#include <sys/epoll.h>
-
-int main(void)
-{
-    epoll_pwait(0, 0, 0, 0, 0);
-    return 0;
-}
-EOF
-if compile_prog "" "" ; then
-  epoll_pwait=yes
-fi
-
 # check for sendfile support
 sendfile=no
 cat > $TMPC << EOF
@@ -5125,9 +5111,6 @@ fi
 if test "$epoll_create1" = "yes" ; then
   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
 fi
-if test "$epoll_pwait" = "yes" ; then
-  echo "CONFIG_EPOLL_PWAIT=y" >> $config_host_mak
-fi
 if test "$sendfile" = "yes" ; then
   echo "CONFIG_SENDFILE=y" >> $config_host_mak
 fi
-- 
cgit v1.1