uftrace contribution

Allow testing of uftrace traces

Signed-off-by: Matthew Khouzam <[email protected]>

Author: MatthewKhouzam

pom.xml

@@ -46,6 +46,7 @@
   <modules>
     <module>ctf</module>
     <module>ftrace</module>
+    <module>uftrace</module>
     <module>update-site</module>
   </modules>
 

uftrace/pom.xml

@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+   Copyright (C) 2021 Ericsson and others
+
+   All rights reserved. This program and the accompanying materials
+   are made available under the terms of the Eclipse Public License 2.0
+   which accompanies this distribution, and is available at
+   https://www.eclipse.org/legal/epl-2.0/
+
+   SPDX-License-Identifier: EPL-2.0
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.eclipse.tracecompass.testtraces</groupId>
+    <artifactId>tracecompass-test-traces-parent</artifactId>
+    <version>1.12.0-SNAPSHOT</version>
+  </parent>
+
+  <licenses>
+    <license>
+      <name>Eclipse Public License 2.0</name>
+      <comments>
+        All rights reserved. This program and the accompanying materials are
+        made available under the terms of the Eclipse Public License 2.0 which
+        accompanies this distribution, and is available at
+        https://www.eclipse.org/legal/epl-2.0/
+
+        SPDX-License-Identifier: EPL-2.0
+      </comments>
+    </license>
+  </licenses>
+
+  <artifactId>tracecompass-test-traces-ftrace</artifactId>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>RELEASE</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.felix</groupId>
+        <artifactId>maven-bundle-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>bundle-manifest</id>
+            <phase>process-classes</phase>
+            <goals>
+              <goal>manifest</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <configuration>
+          <excludeResources>true</excludeResources>
+        </configuration>
+        <executions>
+          <execution>
+            <id>attach-sources</id>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

uftrace/src/main/java/org/eclipse/tracecompass/testtraces/uftrace/UftraceTestTrace.java

@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Ericsson
+ *
+ * All rights reserved. This program and the accompanying materials are
+ * made available under the terms of the Eclipse Public License 2.0 which
+ * accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+
+package org.eclipse.tracecompass.testtraces.ftrace;
+
+import java.net.URL;
+
+/**
+ * Here is the list of the available test traces for the Ftrace parser.
+ *
+ * @author Matthew Khouzam
+ */
+public enum UftraceTestTrace {
+    /**
+     * Example kernel trace
+     *
+     * <pre>
+     * Trace Size: 240 K
+     * Tracer: uftrace v0.9.3 ( dwarf python tui perf sched dynamic )
+     * Event count: 16
+     * Kernel version: 6.5
+     * Trace length: 300 us
+     * </pre>
+     *
+     * The file is obtained by running uftrace on foobar
+     */
+    TEST_FOOBAR("uftrace-foobar-demo/uftrace.dat", 16, 1),
+
+
+    private final String fTraceName;
+    private final int fNbEvent;
+    private int fDuration;
+
+    private FtraceTestTrace(String traceName, int nbEvent, int time) {
+        fTraceName = traceName;
+        fNbEvent = nbEvent;
+        fDuration = time;
+    }
+
+    public URL getTraceURL() {
+        URL url = this.getClass().getResource(fTraceName);
+        if (url == null) {
+            /* Project configuration problem? */
+            throw new IllegalStateException("Test trace not found");
+        }
+        return url;
+    }
+
+    /**
+     * Get the number of events for a trace
+     *
+     * @return the number of events, -1 if irrelevant
+     */
+    public int getNbEvents() {
+        return fNbEvent;
+    }
+
+    /**
+     * Get the duration in seconds of a trace
+     *
+     * @return the duration in seconds of a trace, -1 if irrelevant
+     */
+    public int getDuration() {
+        return fDuration;
+    }
+}

uftrace/src/main/resources/uftrace-foobar-demo/foobar

@@ -0,0 +1,18 @@
+#include <pthread.h>
+
+void *bar(void) {
+  return NULL;
+}
+
+void *foo(void *unused) {
+  return bar();
+}
+
+int main(int argc, char *argv[]) {
+  pthread_t th;
+
+  foo(argv);
+  pthread_create(&th, NULL, foo, NULL);
+  pthread_join(th, NULL);
+  return 0;
+}

uftrace/src/main/resources/uftrace-foobar-demo/foobar.c

@@ -0,0 +1,20 @@
+# symbols: 17
+# path name: /home/matthew/work/src/uftrace/foobar
+# build-id: 516f6190db510f47e9608d9cfd554300d2d61b6e
+000000000000038c 00000020 d __abi_tag
+0000000000001090 00000010 P __stack_chk_fail
+00000000000010a0 00000010 P __monstartup
+00000000000010b0 00000010 P pthread_create
+00000000000010c0 00000010 P __cxa_atexit
+00000000000010d0 00000010 P pthread_join
+00000000000010e0 00000026 T _start
+0000000000001110 00000041 T __gmon_start__
+0000000000001160 00000005 T _dl_relocate_static_pie
+0000000000001229 00000015 T bar
+000000000000123e 0000001d T foo
+000000000000125b 0000007d T main
+00000000000012e0 00000012 t atexit
+0000000000001300 0000000f T __stack_chk_fail_local
+0000000000002000 00000004 D _IO_stdin_used
+0000000000004010 00000004 d called.0
+0000000000004014 00000001 d completed.0