Send comm name on register

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/libust/lttng-ust-comm.c b/libust/lttng-ust-comm.c
index ebc94192aa406eff01f62a8e20a475bc1840e311..4bc13aebe0f257ce6d20811b4ede6efde92087ba 100644 (file)
--- a/libust/lttng-ust-comm.c
+++ b/libust/lttng-ust-comm.c
@@ -21,6 +21,7 @@
 
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <sys/prctl.h>
 #include <unistd.h>
 #include <errno.h>
 #include <pthread.h>
@@ -116,17 +117,24 @@ static
 int register_app_to_sessiond(int socket)
 {
        ssize_t ret;
+       int prctl_ret;
        struct {
                uint32_t major;
                uint32_t minor;
                pid_t pid;
                uid_t uid;
+               char name[16];  /* process name */
        } reg_msg;
 
        reg_msg.major = LTTNG_UST_COMM_VERSION_MAJOR;
        reg_msg.minor = LTTNG_UST_COMM_VERSION_MINOR;
        reg_msg.pid = getpid();
        reg_msg.uid = getuid();
+       prctl_ret = prctl(PR_GET_NAME, (unsigned long) reg_msg.name, 0, 0, 0);
+       if (prctl_ret) {
+               ERR("Error executing prctl");
+               return -errno;
+       }
 
        ret = lttcomm_send_unix_sock(socket, &reg_msg, sizeof(reg_msg));
        if (ret >= 0 && ret != sizeof(reg_msg))