vendor/lldb/lldb-trunk-r256945

1 files changed, 81 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/lang/c/stepping/TestThreadStepping.py b/packages/Python/lldbsuite/test/lang/c/stepping/TestThreadStepping.py
new file mode 100644
index 000000000000..c3ed3f933ab0
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/c/stepping/TestThreadStepping.py
@@ -0,0 +1,81 @@
+"""
+Test thread stepping features in combination with frame select.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import re
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class ThreadSteppingTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to of function 'c'.
+        self.line1 = line_number('main.c', '// Find the line number of function "c" here.')
+        self.line2 = line_number('main.c', '// frame select 2, thread step-out while stopped at "c(1)"')
+        self.line3 = line_number('main.c', '// thread step-out while stopped at "c(2)"')
+        self.line4 = line_number('main.c', '// frame select 1, thread step-out while stopped at "c(3)"')
+
+    def test_step_out_with_run_command(self):
+        """Exercise thread step-out and frame select followed by thread step-out."""
+        self.build()
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+        # Create a breakpoint inside function 'c'.
+        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line1, num_expected_locations=1, loc_exact=True)
+
+        # Now run the program.
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # The process should be stopped at this point.
+        self.expect("process status", PROCESS_STOPPED,
+            patterns = ['Process .* stopped'])
+
+        # The frame #0 should correspond to main.c:32, the executable statement
+        # in function name 'c'.  And frame #3 should point to main.c:37.
+        self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
+            substrs = ["stop reason = breakpoint"],
+            patterns = ["frame #0.*main.c:%d" % self.line1,
+                        "frame #3.*main.c:%d" % self.line2])
+
+        # We want to move the pc to frame #3.  This can be accomplished by
+        # 'frame select 2', followed by 'thread step-out'.
+        self.runCmd("frame select 2")
+        self.runCmd("thread step-out")
+        self.expect("thread backtrace", STEP_OUT_SUCCEEDED,
+            substrs = ["stop reason = step out"],
+            patterns = ["frame #0.*main.c:%d" % self.line2])
+
+        # Let's move on to a single step-out case.
+        self.runCmd("process continue")
+
+        # The process should be stopped at this point.
+        self.expect("process status", PROCESS_STOPPED,
+            patterns = ['Process .* stopped'])
+        self.runCmd("thread step-out")
+        self.expect("thread backtrace", STEP_OUT_SUCCEEDED,
+            substrs = ["stop reason = step out"],
+            patterns = ["frame #0.*main.c:%d" % self.line3])
+
+        # Do another frame selct, followed by thread step-out.
+        self.runCmd("process continue")
+
+        # The process should be stopped at this point.
+        self.expect("process status", PROCESS_STOPPED,
+            patterns = ['Process .* stopped'])
+        self.runCmd("frame select 1")
+        self.runCmd("thread step-out")
+        self.expect("thread backtrace", STEP_OUT_SUCCEEDED,
+            substrs = ["stop reason = step out"],
+            patterns = ["frame #0.*main.c:%d" % self.line4])