Fixed compilation warnings emitted by clang.

Plus make finding the break line number in main.cpp more robust.

llvm-svn: 118832

lldb/test/threads/TestPrintStackTraces.py

@@ -12,6 +12,12 @@ class ThreadsStackTracesTestCase(TestBase):
 
     mydir = "threads"
 
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break inside main().
+        self.line = line_number('main.cpp', '// Set break point at this line.')
+
     def test_stack_traces(self):
         """Test SBprocess and SBThread APIs with printing of the stack traces."""
         self.buildDefault()
@@ -24,7 +30,7 @@ class ThreadsStackTracesTestCase(TestBase):
         target = self.dbg.CreateTarget(exe)
         self.assertTrue(target.IsValid(), VALID_TARGET)
 
-        breakpoint = target.BreakpointCreateByLocation("main.cpp", 68)
+        breakpoint = target.BreakpointCreateByLocation("main.cpp", self.line)
         self.assertTrue(breakpoint.IsValid(), VALID_BREAKPOINT)
 
         # Now launch the process, and do not stop at entry point.

lldb/test/threads/main.cpp

@@ -14,8 +14,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-using namespace std;
-
 pthread_t g_thread_1 = NULL;
 pthread_t g_thread_2 = NULL;
 pthread_t g_thread_3 = NULL;
@@ -65,10 +63,10 @@ thread_func (void *arg)
         long usec = ::random() % 3000000;
         printf ("%s (thread = %u) doing a usleep (%li)...\n", __FUNCTION__, thread_index, usec);
         ::usleep (usec);
-        printf ("%s (thread = %u) after usleep ...\n", __FUNCTION__, thread_index);
+        printf ("%s (thread = %u) after usleep ...\n", __FUNCTION__, thread_index); // Set break point at this line.
     }
     printf ("%s (thread index = %u) exiting...\n", __FUNCTION__, thread_index);
-
+    return NULL;
 }