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authorshrinivasan ganapathy <shrinivasanganapathy@gmail.com>2017-10-10 11:32:11 -0700
committershrinivasan ganapathy <shrinivasanganapathy@gmail.com>2017-10-10 11:32:11 -0700
commit2057491539259158e980c03a4a07740ce0dfbb13 (patch)
tree4ebac9dbf9dbef278b1dd1a175343f68b8b81ec3
parente366e723d9afac1af35529a0e959e7226d000d6f (diff)
LD_PRELOAD stub identified system calls
- stub identifed unimplemented system call to return EOPNOTSUPP(95) Change-Id: I4f4a78717059f224bc695a0d32d4f0417dc46bd4 Signed-off-by: shrinivasan ganapathy <shrinivasanganapathy@gmail.com>
-rw-r--r--vcl-ldpreload/src/libvcl-ldpreload/vcom.c60
-rw-r--r--vcl-ldpreload/src/libvcl-ldpreload/vcom.h10
-rw-r--r--vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h25
-rw-r--r--vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c1
4 files changed, 96 insertions, 0 deletions
diff --git a/vcl-ldpreload/src/libvcl-ldpreload/vcom.c b/vcl-ldpreload/src/libvcl-ldpreload/vcom.c
index e148ce0..3160d1d 100644
--- a/vcl-ldpreload/src/libvcl-ldpreload/vcom.c
+++ b/vcl-ldpreload/src/libvcl-ldpreload/vcom.c
@@ -2899,6 +2899,66 @@ epoll_pwait (int __epfd, struct epoll_event *__events,
return 0;
}
+/* Poll the file descriptors described by the NFDS structures starting at
+ FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
+ an event to occur; if TIMEOUT is -1, block until an event occurs.
+ Returns the number of file descriptors with events, zero if timed out,
+ or -1 for errors.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+int
+vcom_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
+{
+ if (vcom_init () != 0)
+ {
+ return -1;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+int
+poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
+{
+ int rv = 0;
+
+ errno = EOPNOTSUPP;
+ rv = -1;
+ return rv;
+}
+
+#ifdef __USE_GNU
+/* Like poll, but before waiting the threads signal mask is replaced
+ with that specified in the fourth parameter. For better usability,
+ the timeout value is specified using a TIMESPEC object.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+int vcom_ppoll (struct pollfd *__fds, nfds_t __nfds,
+ const struct timespec *__timeout,
+ const __sigset_t *__ss)
+{
+ if (vcom_init () != 0)
+ {
+ return -1;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+int ppoll (struct pollfd *__fds, nfds_t __nfds,
+ const struct timespec *__timeout,
+ const __sigset_t *__ss)
+{
+ int rv = 0;
+
+ errno = EOPNOTSUPP;
+ rv = -1;
+ return rv;
+}
+#endif
+
void CONSTRUCTOR_ATTRIBUTE vcom_constructor (void);
void DESTRUCTOR_ATTRIBUTE vcom_destructor (void);
diff --git a/vcl-ldpreload/src/libvcl-ldpreload/vcom.h b/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
index 1706c0e..0cb68a3 100644
--- a/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
+++ b/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
@@ -175,6 +175,16 @@ vcom_epoll_pwait (int __epfd, struct epoll_event *__events,
int __maxevents, int __timeout,
const __sigset_t *__ss);
+extern int
+vcom_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
+
+#ifdef __USE_GNU
+extern int
+vcom_ppoll (struct pollfd *__fds, nfds_t __nfds,
+ const struct timespec *__timeout,
+ const __sigset_t *__ss);
+#endif
+
#endif /* included_vcom_h */
diff --git a/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h b/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h
index 026ba60..ecad24a 100644
--- a/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h
+++ b/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h
@@ -23,6 +23,8 @@
#include <fcntl.h>
#include <sys/epoll.h>
+#include <poll.h>
+
/*
*
* Generic glibc fd api
@@ -318,6 +320,29 @@ epoll_pwait (int __epfd, struct epoll_event *__events,
int __maxevents, int __timeout,
const __sigset_t *__ss);
+/* Poll the file descriptors described by the NFDS structures starting at
+ FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
+ an event to occur; if TIMEOUT is -1, block until an event occurs.
+ Returns the number of file descriptors with events, zero if timed out,
+ or -1 for errors.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
+
+#ifdef __USE_GNU
+/* Like poll, but before waiting the threads signal mask is replaced
+ with that specified in the fourth parameter. For better usability,
+ the timeout value is specified using a TIMESPEC object.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int ppoll (struct pollfd *__fds, nfds_t __nfds,
+ const struct timespec *__timeout,
+ const __sigset_t *__ss);
+#endif
+
+
#endif /* included_vcom_glibc_socket_h */
/*
diff --git a/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c b/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c
index 560cc7f..89c28fe 100644
--- a/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c
+++ b/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c
@@ -1624,6 +1624,7 @@ vppcom_recvmsg (int __sid, struct msghdr *__message, int __flags)
int rv = -1;
/* rv = vppcom_session_read (__sid, (void *) __message->__buf,
(int)__n); */
+ rv = -EOPNOTSUPP;
return rv;
}