--- coregrind/m_syswrap/syswrap-freebsd.c	2013-05-06 10:12:54.000000000 -0700
+++ coregrind/m_syswrap/syswrap-freebsd.c	2015-01-02 11:57:57.000000000 -0800
@@ -3242,6 +3242,7 @@ 
    case VKI_F_SETFD:
    case VKI_F_SETFL:
    case VKI_F_SETOWN:
+   case VKI_F_DUPFD_CLOEXEC:
       PRINT("sys_fcntl[ARG3=='arg'] ( %ld, %ld, %ld )", ARG1,ARG2,ARG3);
       PRE_REG_READ3(long, "fcntl",
                     unsigned int, fd, unsigned int, cmd, unsigned long, arg);
@@ -3291,7 +3292,7 @@ 
 POST(sys_fcntl)
 {
    vg_assert(SUCCESS);
-   if (ARG2 == VKI_F_DUPFD) {
+   if (ARG2 == VKI_F_DUPFD || ARG2 == VKI_F_DUPFD_CLOEXEC) {
       if (!ML_(fd_allowed)(RES, "fcntl(DUPFD)", tid, True)) {
          VG_(close)(RES);
          SET_STATUS_Failure( VKI_EMFILE );
--- include/vki/vki-freebsd.h	2013-05-06 10:12:55.000000000 -0700
+++ include/vki/vki-freebsd.h	2015-01-02 11:55:59.000000000 -0800
@@ -1543,6 +1543,7 @@ 
 #define VKI_F_SETLK		12	/* set record locking information */
 #define VKI_F_SETLKW		13	/* F_SETLK; wait if blocked */
 #define VKI_F_SETLK_REMOTE	14	/* debugging support for remote locks */
+#define VKI_F_DUPFD_CLOEXEC	17	/* Like F_DUPFD, but FD_CLOEXEC is set */
 
 /* for F_[GET|SET]FL */
 #define VKI_FD_CLOEXEC	1	/* actually anything with low bit set goes */