[lldb] Restructure test folders to match LLDB command hierarchy

Summary:
As discussed on lldb-dev, this patch moves some LLDB tests into a hierarchy that more closely
resembles the commands we use in the LLDB interpreter. This patch should only move tests
that use the command interpreter and shouldn't touch any tests that primarily test the SB API.

Reviewers: #lldb, jfb, JDevlieghere

Reviewed By: #lldb, JDevlieghere

Subscribers: dexonsmith, arphaman, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D67033

llvm-svn: 370605

1 files changed, 92 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/commands/expression/expr-in-syscall/TestExpressionInSyscall.py b/lldb/packages/Python/lldbsuite/test/commands/expression/expr-in-syscall/TestExpressionInSyscall.py
new file mode 100644
index 00000000000..6a7e6075253
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/commands/expression/expr-in-syscall/TestExpressionInSyscall.py
@@ -0,0 +1,92 @@
+"""Test that we are able to evaluate expressions when the inferior is blocked in a syscall"""
+
+from __future__ import print_function
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class ExprSyscallTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["windows"],
+        bugnumber="llvm.org/pr21765, getpid() does not exist on Windows")
+    @expectedFailureNetBSD
+    def test_setpgid(self):
+        self.build()
+        self.expr_syscall()
+
+    def expr_syscall(self):
+        exe = self.getBuildArtifact("a.out")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        listener = lldb.SBListener("my listener")
+
+        # launch the inferior and don't wait for it to stop
+        self.dbg.SetAsync(True)
+        error = lldb.SBError()
+        process = target.Launch(listener,
+                                None,      # argv
+                                None,      # envp
+                                None,      # stdin_path
+                                None,      # stdout_path
+                                None,      # stderr_path
+                                None,      # working directory
+                                0,         # launch flags
+                                False,     # Stop at entry
+                                error)     # error
+
+        self.assertTrue(process and process.IsValid(), PROCESS_IS_VALID)
+
+        event = lldb.SBEvent()
+
+        # Give the child enough time to reach the syscall,
+        # while clearing out all the pending events.
+        # The last WaitForEvent call will time out after 2 seconds.
+        while listener.WaitForEvent(2, event):
+            pass
+
+        # now the process should be running (blocked in the syscall)
+        self.assertEqual(
+            process.GetState(),
+            lldb.eStateRunning,
+            "Process is running")
+
+        # send the process a signal
+        process.SendAsyncInterrupt()
+        while listener.WaitForEvent(2, event):
+            pass
+
+        # as a result the process should stop
+        # in all likelihood we have stopped in the middle of the sleep()
+        # syscall
+        self.assertEqual(
+            process.GetState(),
+            lldb.eStateStopped,
+            PROCESS_STOPPED)
+        thread = process.GetSelectedThread()
+
+        # try evaluating a couple of expressions in this state
+        self.expect("expr release_flag = 1", substrs=[" = 1"])
+        self.expect("print (int)getpid()",
+                    substrs=[str(process.GetProcessID())])
+
+        # and run the process to completion
+        process.Continue()
+
+        # process all events
+        while listener.WaitForEvent(10, event):
+            new_state = lldb.SBProcess.GetStateFromEvent(event)
+            if new_state == lldb.eStateExited:
+                break
+
+        self.assertEqual(process.GetState(), lldb.eStateExited)
+        self.assertEqual(process.GetExitStatus(), 0)