Add support for F_DUPFD_CLOEXEC. Fixes #238696.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11316

diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
index c5fc108f216d4b7ba6279c90029c6442f81bc4f5..09159ac7b2af6e70c847ce64b2172c666ea56a1f 100644 (file)
--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -3582,6 +3582,7 @@ PRE(sys_fcntl)
 
    // These ones use ARG3 as "arg".
    case VKI_F_DUPFD:
+   case VKI_F_DUPFD_CLOEXEC:
    case VKI_F_SETFD:
    case VKI_F_SETFL:
    case VKI_F_SETLEASE:
@@ -3634,6 +3635,15 @@ POST(sys_fcntl)
             ML_(record_fd_open_named)(tid, RES);
       }
    }
+   else if (ARG2 == VKI_F_DUPFD_CLOEXEC) {
+      if (!ML_(fd_allowed)(RES, "fcntl(DUPFD_CLOEXEC)", tid, True)) {
+         VG_(close)(RES);
+         SET_STATUS_Failure( VKI_EMFILE );
+      } else {
+         if (VG_(clo_track_fds))
+            ML_(record_fd_open_named)(tid, RES);
+      }
+   }
 }
 
 // XXX: wrapper only suitable for 32-bit systems
@@ -3654,6 +3664,7 @@ PRE(sys_fcntl64)
 
    // These ones use ARG3 as "arg".
    case VKI_F_DUPFD:
+   case VKI_F_DUPFD_CLOEXEC:
    case VKI_F_SETFD:
    case VKI_F_SETFL:
    case VKI_F_SETLEASE:
@@ -3699,6 +3710,15 @@ POST(sys_fcntl64)
             ML_(record_fd_open_named)(tid, RES);
       }
    }
+   else if (ARG2 == VKI_F_DUPFD_CLOEXEC) {
+      if (!ML_(fd_allowed)(RES, "fcntl64(DUPFD_CLOEXEC)", tid, True)) {
+         VG_(close)(RES);
+         SET_STATUS_Failure( VKI_EMFILE );
+      } else {
+         if (VG_(clo_track_fds))
+            ML_(record_fd_open_named)(tid, RES);
+      }
+   }
 }
 
 /* ---------------------------------------------------------------------

diff --git a/include/vki/vki-linux.h b/include/vki/vki-linux.h
index beff378b3140a14357bc157b35900d3cbef9cf9e..6b676e6aeb0efeb41479835638b2922f1d9fd09f 100644 (file)
--- a/include/vki/vki-linux.h
+++ b/include/vki/vki-linux.h
@@ -1296,10 +1296,17 @@ struct vki_dirent {
 // From linux-2.6.8.1/include/linux/fcntl.h
 //----------------------------------------------------------------------
 
-#define VKI_F_SETLEASE (VKI_F_LINUX_SPECIFIC_BASE+0)
-#define VKI_F_GETLEASE (VKI_F_LINUX_SPECIFIC_BASE+1)
+#define VKI_F_SETLEASE      (VKI_F_LINUX_SPECIFIC_BASE + 0)
+#define VKI_F_GETLEASE      (VKI_F_LINUX_SPECIFIC_BASE + 1)
 
-#define VKI_F_NOTIFY   (VKI_F_LINUX_SPECIFIC_BASE+2)
+#define VKI_F_CANCELLK      (VKI_F_LINUX_SPECIFIC_BASE + 5)
+
+#define VKI_F_DUPFD_CLOEXEC (VKI_F_LINUX_SPECIFIC_BASE + 6)
+
+#define VKI_F_NOTIFY        (VKI_F_LINUX_SPECIFIC_BASE + 2)
+
+#define VKI_F_SETPIPE_SZ    (VKI_F_LINUX_SPECIFIC_BASE + 7)
+#define VKI_F_GETPIPE_SZ    (VKI_F_LINUX_SPECIFIC_BASE + 8)
 
 //----------------------------------------------------------------------
 // From linux-2.6.8.1/include/linux/sysctl.h