tests: Bluetooth: Add debug options to host/l2cap/stress

Enable quality-of-life kconfig options.
Add destroy callbacks to track lifetime of app buffers.

Signed-off-by: Jonathan Rico <[email protected]>

Author: jori-nordic

tests/bsim/bluetooth/host/l2cap/stress/prj.conf

@@ -46,3 +46,10 @@ CONFIG_BT_MAX_CONN=10
 CONFIG_LOG=y
 CONFIG_ASSERT=y
 CONFIG_NET_BUF_POOL_USAGE=y
+
+CONFIG_BT_L2CAP_LOG_LEVEL_DBG=y
+# CONFIG_BT_CONN_LOG_LEVEL_DBG=y
+CONFIG_LOG_THREAD_ID_PREFIX=y
+CONFIG_THREAD_NAME=y
+
+CONFIG_ARCH_POSIX_TRAP_ON_FATAL=y

tests/bsim/bluetooth/host/l2cap/stress/src/main.c

@@ -23,20 +23,41 @@ CREATE_FLAG(flag_l2cap_connected);
 #define NUM_SEGMENTS    10
 #define RESCHEDULE_DELAY K_MSEC(100)
 
+static void sdu_destroy(struct net_buf *buf)
+{
+	LOG_DBG("%p", buf);
+
+	net_buf_destroy(buf);
+}
+
+static void segment_destroy(struct net_buf *buf)
+{
+	LOG_DBG("%p", buf);
+
+	net_buf_destroy(buf);
+}
+
+static void rx_destroy(struct net_buf *buf)
+{
+	LOG_DBG("%p", buf);
+
+	net_buf_destroy(buf);
+}
+
 /* Only one SDU per link will be transmitted at a time */
 NET_BUF_POOL_DEFINE(sdu_tx_pool,
 		    CONFIG_BT_MAX_CONN, BT_L2CAP_SDU_BUF_SIZE(SDU_LEN),
-		    CONFIG_BT_CONN_TX_USER_DATA_SIZE, NULL);
+		    CONFIG_BT_CONN_TX_USER_DATA_SIZE, sdu_destroy);
 
 NET_BUF_POOL_DEFINE(segment_pool,
 		    /* MTU + 4 l2cap hdr + 4 ACL hdr */
 		    NUM_SEGMENTS, BT_L2CAP_BUF_SIZE(CONFIG_BT_L2CAP_TX_MTU),
-		    CONFIG_BT_CONN_TX_USER_DATA_SIZE, NULL);
+		    CONFIG_BT_CONN_TX_USER_DATA_SIZE, segment_destroy);
 
 /* Only one SDU per link will be received at a time */
 NET_BUF_POOL_DEFINE(sdu_rx_pool,
 		    CONFIG_BT_MAX_CONN, BT_L2CAP_SDU_BUF_SIZE(SDU_LEN),
-		    8, NULL);
+		    8, rx_destroy);
 
 static uint8_t tx_data[SDU_LEN];
 static uint16_t rx_cnt;