Add freebsd support for getcpu (use cpu nr 0)

[lttng-ust.git] / libringbuffer / ring_buffer_frontend.c

diff --git a/libringbuffer/ring_buffer_frontend.c b/libringbuffer/ring_buffer_frontend.c
index d0649f3e36b9e33b0e1b247854fd6a2c000f714a..ca19648f1d04f544d4f931bb29344fd3e43b65f4 100644 (file)
--- a/libringbuffer/ring_buffer_frontend.c
+++ b/libringbuffer/ring_buffer_frontend.c
@@ -38,6 +38,7 @@
  * Dual LGPL v2.1/GPL v2 license.
  */
 
+#define _GNU_SOURCE
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
@@ -92,7 +93,8 @@ __thread unsigned int lib_ring_buffer_nesting;
 static
 void lib_ring_buffer_print_errors(struct channel *chan,
                                  struct lttng_ust_lib_ring_buffer *buf, int cpu,
-                                 struct lttng_ust_shm_handle *handle);
+                                 struct lttng_ust_shm_handle *handle)
+       __attribute__((unused));
 
 /**
  * lib_ring_buffer_reset - Reset ring buffer to initial values.