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[Qemu-devel] [PATCH v2 1/9] configure: probe for memfd
From: |
Marc-André Lureau |
Subject: |
[Qemu-devel] [PATCH v2 1/9] configure: probe for memfd |
Date: |
Tue, 28 Jul 2015 19:36:35 +0200 |
Check if memfd_create() is part of system libc.
Signed-off-by: Marc-André Lureau <address@hidden>
---
configure | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/configure b/configure
index 704b34c..c754700 100755
--- a/configure
+++ b/configure
@@ -3406,6 +3406,22 @@ 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 > $TMPC << EOF
@@ -4786,6 +4802,9 @@ fi
if test "$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
--
2.4.3