diff mbox

[v7,01/24] configure: probe for memfd

Message ID 1443720248-15482-2-git-send-email-marcandre.lureau@redhat.com
State New
Headers show

Commit Message

Marc-André Lureau Oct. 1, 2015, 5:23 p.m. UTC 
From: Marc-André Lureau <marcandre.lureau@redhat.com>

Check if memfd_create() is part of system libc.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 configure | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
diff mbox

Patch

diff --git a/configure b/configure
index f14454e..5e77ed5 100755
--- a/configure
+++ b/configure
@@ -3486,6 +3486,22 @@  if compile_prog "" "" ; then
   eventfd=yes
 fi
 
+# check if memfd is supported
+memfd=no
+cat > $TMPC << EOF
+#include <sys/memfd.h>
+
+int main(void)
+{
+    return memfd_create("foo", MFD_ALLOW_SEALING);
+}
+EOF
+if compile_prog "" "" ; then
+  memfd=yes
+fi
+
+
+
 # check for fallocate
 fallocate=no
 cat > $TMPC << EOF
@@ -4857,6 +4873,9 @@  fi
 if test "$eventfd" = "yes" ; then
   echo "CONFIG_EVENTFD=y" >> $config_host_mak
 fi
+if test "$memfd" = "yes" ; then
+  echo "CONFIG_MEMFD=y" >> $config_host_mak
+fi
 if test "$fallocate" = "yes" ; then
   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
 fi