File qemu-0.11-git-user-linux-dup3_config.patch of Package qemu-svn

File qemu-0.11-git-user-linux-dup3_config.patch of Package qemu-svn (Revision 5f4f5a925234d7e2a1bf2ca6353d0906)

Currently displaying revision 5f4f5a925234d7e2a1bf2ca6353d0906, show latest

diff --git a/configure b/configure
index 68a18f5..917dfd8 100755
--- a/configure
+++ b/configure
@@ -1386,6 +1386,40 @@ if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then
   fallocate=yes
 fi
 
+# check for fallocate64
+cat > $TMPC << EOF
+#include <fcntl.h>
+
+int main(void)
+{
+    fallocate64(0, 0, 0, 0);
+    return 0;
+}
+EOF
+if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then
+  fallocate=yes
+else
+  fallocate=no
+fi
+
+# check for dup3
+dup3avail=no
+cat > $TMPC << EOF
+#include <fcntl.h>
+
+int main(void)
+{
+    dup3(0, 0, 0);
+    return 0;
+}
+EOF
+if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then
+  dup3avail=yes
+fi
+
+echo "fallocate = $fallocate"
+echo "dup3avail = $dup3avail"
+
 # Check if tools are available to build documentation.
 if test "$build_docs" = "yes" -a $ ! -x "`which texi2html 2>/dev/null`" -o ! -x "`which pod2man 2>/dev/null`" $ ; then
   build_docs="no"
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 41a67aa..0c9bdb4 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3679,8 +3679,10 @@ static int target_to_host_fcntl_cmd(int cmd)
             return F_SETLEASE;
         case TARGET_F_GETLEASE:
             return F_GETLEASE;
+#if defined(CONFIG_DUP3AVAIL)
         case TARGET_F_DUPFD_CLOEXEC:
             return F_DUPFD_CLOEXEC;
+#endif
         case TARGET_F_NOTIFY:
             return F_NOTIFY;
 	default:
@@ -4730,6 +4732,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
     case TARGET_NR_dup2:
         ret = get_errno(dup2(arg1, arg2));
         break;
+#if defined(CONFIG_DUP3AVAIL) && defined(TARGET_NR_dup3)
+    case TARGET_NR_dup3:
+        ret = get_errno(dup3(arg1, arg2, arg3));
+        break;
+#endif
 #ifdef TARGET_NR_getppid /* not on alpha */
     case TARGET_NR_getppid:
         ret = get_errno(getppid());