tests: tracing: add tests for tracing features

Mostly build tests now, will be extended to verify CTF output once we
have this feature in sanitycheck.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

boards/arm/qemu_cortex_r5/qemu_cortex_r5.yaml

@@ -46,3 +46,4 @@ testing:
     - userspace
     - util
     - xip
+    - tracing

samples/synchronization/sample.yaml

@@ -12,15 +12,3 @@ tests:
       regex:
         - "threadA: Hello World from (.*)!"
         - "threadB: Hello World from (.*)!"
-  sample.synchronization.openocd:
-    tags: kernel synchronization
-    extra_configs:
-      - CONFIG_OPENOCD_SUPPORT=y
-    arch_exclude: posix xtensa x86_64
-    platform_exclude: qemu_x86_long
-    harness: console
-    harness_config:
-      type: multi_line
-      regex:
-        - "thread_a: Hello World from (.*)!"
-        - "thread_b: Hello World from (.*)!"

tests/subsys/debug/tracing/CMakeLists.txt

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.13.1)
+
+include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
+project(tracing_tests)
+
+target_sources(app PRIVATE src/main.c)

tests/subsys/debug/tracing/prj.conf

@@ -0,0 +1,2 @@
+# enable to use thread names
+CONFIG_THREAD_NAME=y

tests/subsys/debug/tracing/src/main.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2019 Intel Corporation
+ * Copyright (c) 2012-2014 Wind River Systems, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr.h>
+#include <sys/printk.h>
+
+/*
+ * The hello world demo has two threads that utilize semaphores and sleeping
+ * to take turns printing a greeting message at a controlled rate. The demo
+ * shows both the static and dynamic approaches for spawning a thread; a real
+ * world application would likely use the static approach for both threads.
+ */
+
+
+/* size of stack area used by each thread */
+#define STACKSIZE 1024
+
+/* scheduling priority used by each thread */
+#define PRIORITY 7
+
+/* delay between greetings (in ms) */
+#define SLEEPTIME 500
+
+
+/*
+ * @param my_name      thread identification string
+ * @param my_sem       thread's own semaphore
+ * @param other_sem    other thread's semaphore
+ */
+void helloLoop(const char *my_name,
+	       struct k_sem *my_sem, struct k_sem *other_sem)
+{
+	const char *tname;
+
+	while (1) {
+		/* take my semaphore */
+		k_sem_take(my_sem, K_FOREVER);
+
+		/* say "hello" */
+		tname = k_thread_name_get(k_current_get());
+		if (tname == NULL) {
+			printk("%s: Hello World from %s!\n",
+				my_name, CONFIG_BOARD);
+		} else {
+			printk("%s: Hello World from %s!\n",
+				tname, CONFIG_BOARD);
+		}
+
+		/* wait a while, then let other thread have a turn */
+		k_sleep(SLEEPTIME);
+		k_sem_give(other_sem);
+	}
+}
+
+/* define semaphores */
+
+K_SEM_DEFINE(threadA_sem, 1, 1);	/* starts off "available" */
+K_SEM_DEFINE(threadB_sem, 0, 1);	/* starts off "not available" */
+
+
+/* threadB is a dynamic thread that is spawned by threadA */
+
+void threadB(void *dummy1, void *dummy2, void *dummy3)
+{
+	ARG_UNUSED(dummy1);
+	ARG_UNUSED(dummy2);
+	ARG_UNUSED(dummy3);
+
+	/* invoke routine to ping-pong hello messages with threadA */
+	helloLoop(__func__, &threadB_sem, &threadA_sem);
+}
+
+K_THREAD_STACK_DEFINE(threadB_stack_area, STACKSIZE);
+static struct k_thread threadB_data;
+
+/* threadA is a static thread that is spawned automatically */
+
+void threadA(void *dummy1, void *dummy2, void *dummy3)
+{
+	ARG_UNUSED(dummy1);
+	ARG_UNUSED(dummy2);
+	ARG_UNUSED(dummy3);
+
+	/* spawn threadB */
+	k_tid_t tid = k_thread_create(&threadB_data, threadB_stack_area,
+			STACKSIZE, threadB, NULL, NULL, NULL,
+			PRIORITY, 0, K_NO_WAIT);
+
+	k_thread_name_set(tid, "thread_b");
+
+	/* invoke routine to ping-pong hello messages with threadB */
+	helloLoop(__func__, &threadA_sem, &threadB_sem);
+}
+
+K_THREAD_DEFINE(thread_a, STACKSIZE, threadA, NULL, NULL, NULL,
+		PRIORITY, 0, K_NO_WAIT);

tests/subsys/debug/tracing/testcase.yaml

@@ -0,0 +1,27 @@
+common:
+    tags: tracing debug
+    harness: console
+    harness_config:
+      type: multi_line
+      regex:
+        - "thread_a: Hello World from (.*)!"
+        - "thread_b: Hello World from (.*)!"
+tests:
+  tracing.sysview:
+    platform_whitelist: nrf52840_pca10056
+    extra_configs:
+      - CONFIG_SEGGER_SYSTEMVIEW=y
+      - CONFIG_USE_SEGGER_RTT=y
+  tracing.ctf:
+    platform_whitelist: native_posix
+    extra_configs:
+      - CONFIG_TRACING_CTF=y
+  tracing.cpu_stats:
+    platform_whitelist: nrf52840_pca10056
+    extra_configs:
+      - CONFIG_TRACING_CPU_STATS=y
+  tracing.openocd:
+    extra_configs:
+      - CONFIG_OPENOCD_SUPPORT=y
+    arch_exclude: posix xtensa x86_64
+    platform_exclude: qemu_x86_long