Vendor import of lldb trunk r256945:

https://llvm.org/svn/llvm-project/lldb/trunk@256945

3 files changed, 189 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/python_api/hello_world/Makefile b/packages/Python/lldbsuite/test/python_api/hello_world/Makefile
new file mode 100644
index 0000000..9976203
--- /dev/null
+++ b/packages/Python/lldbsuite/test/python_api/hello_world/Makefile
@@ -0,0 +1,7 @@
+LEVEL = ../../make
+
+C_SOURCES := main.c
+# See TestHelloWorld.py, which specifies the executable name with a dictionary.
+EXE := hello_world
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py b/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
new file mode 100644
index 0000000..47c3ba1
--- /dev/null
+++ b/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
@@ -0,0 +1,147 @@
+"""Test Python APIs for target (launch and attach), breakpoint, and process."""
+
+from __future__ import print_function
+
+
+
+import os, sys, time
+import lldb
+import time
+from lldbsuite.test.lldbtest import *
+
+class HelloWorldTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+    
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Get the full path to our executable to be attached/debugged.
+        self.exe = os.path.join(os.getcwd(), self.testMethodName)
+        self.d = {'EXE': self.testMethodName}
+        # Find a couple of the line numbers within main.c.
+        self.line1 = line_number('main.c', '// Set break point at this line.')
+        self.line2 = line_number('main.c', '// Waiting to be attached...')
+
+    def tearDown(self):
+        # Destroy process before TestBase.tearDown()
+        self.dbg.GetSelectedTarget().GetProcess().Destroy()
+        # Call super's tearDown().
+        TestBase.tearDown(self)
+
+    @add_test_categories(['pyapi'])
+    @skipIfiOSSimulator
+    def test_with_process_launch_api(self):
+        """Create target, breakpoint, launch a process, and then kill it."""
+        self.build(dictionary=self.d)
+        self.setTearDownCleanup(dictionary=self.d)
+        target = self.dbg.CreateTarget(self.exe)
+
+        breakpoint = target.BreakpointCreateByLocation("main.c", self.line1)
+
+        # The default state after breakpoint creation should be enabled.
+        self.assertTrue(breakpoint.IsEnabled(),
+                        "Breakpoint should be enabled after creation")
+
+        breakpoint.SetEnabled(False)
+        self.assertTrue(not breakpoint.IsEnabled(),
+                        "Breakpoint.SetEnabled(False) works")
+
+        breakpoint.SetEnabled(True)
+        self.assertTrue(breakpoint.IsEnabled(),
+                        "Breakpoint.SetEnabled(True) works")
+
+        # rdar://problem/8364687
+        # SBTarget.Launch() issue (or is there some race condition)?
+
+        process = target.LaunchSimple (None, None, self.get_process_working_directory())
+        # The following isn't needed anymore, rdar://8364687 is fixed.
+        #
+        # Apply some dances after LaunchProcess() in order to break at "main".
+        # It only works sometimes.
+        #self.breakAfterLaunch(process, "main")
+
+        process = target.GetProcess()
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        thread = process.GetThreadAtIndex(0)
+        if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
+            from lldbsuite.test.lldbutil import stop_reason_to_str
+            self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
+                      stop_reason_to_str(thread.GetStopReason()))
+
+        # The breakpoint should have a hit count of 1.
+        self.assertTrue(breakpoint.GetHitCount() == 1, BREAKPOINT_HIT_ONCE)
+
+    @add_test_categories(['pyapi'])
+    @expectedFailureWindows("llvm.org/pr24600")
+    @expectedFailurei386("llvm.org/pr25338")
+    @skipIfiOSSimulator
+    def test_with_attach_to_process_with_id_api(self):
+        """Create target, spawn a process, and attach to it with process id."""
+        self.build(dictionary=self.d)
+        self.setTearDownCleanup(dictionary=self.d)
+        target = self.dbg.CreateTarget(self.exe)
+
+        # Spawn a new process
+        popen = self.spawnSubprocess(self.exe, ["abc", "xyz"])
+        self.addTearDownHook(self.cleanupSubprocesses)
+
+        # Give the subprocess time to start and wait for user input
+        time.sleep(0.25)
+
+        listener = lldb.SBListener("my.attach.listener")
+        error = lldb.SBError()
+        process = target.AttachToProcessWithID(listener, popen.pid, error)
+
+        self.assertTrue(error.Success() and process, PROCESS_IS_VALID)
+
+        # Let's check the stack traces of the attached process.
+        import lldbsuite.test.lldbutil as lldbutil
+        stacktraces = lldbutil.print_stacktraces(process, string_buffer=True)
+        self.expect(stacktraces, exe=False,
+            substrs = ['main.c:%d' % self.line2,
+                       '(int)argc=3'])
+
+    @add_test_categories(['pyapi'])
+    @expectedFailureWindows("llvm.org/pr24600")
+    @expectedFailurei386("llvm.org/pr25338")
+    @skipIfiOSSimulator
+    def test_with_attach_to_process_with_name_api(self):
+        """Create target, spawn a process, and attach to it with process name."""
+        self.build(dictionary=self.d)
+        self.setTearDownCleanup(dictionary=self.d)
+        target = self.dbg.CreateTarget(self.exe)
+
+        # Spawn a new process
+        popen = self.spawnSubprocess(self.exe, ["abc", "xyz"])
+        self.addTearDownHook(self.cleanupSubprocesses)
+
+        # Give the subprocess time to start and wait for user input
+        time.sleep(0.25)
+
+        listener = lldb.SBListener("my.attach.listener")
+        error = lldb.SBError()
+        # Pass 'False' since we don't want to wait for new instance of "hello_world" to be launched.
+        name = os.path.basename(self.exe)
+
+        # While we're at it, make sure that passing a None as the process name
+        # does not hang LLDB.
+        target.AttachToProcessWithName(listener, None, False, error)
+        # Also boundary condition test ConnectRemote(), too.
+        target.ConnectRemote(listener, None, None, error)
+
+        process = target.AttachToProcessWithName(listener, name, False, error)
+
+        self.assertTrue(error.Success() and process, PROCESS_IS_VALID)
+
+        # Verify that after attach, our selected target indeed matches name.
+        self.expect(self.dbg.GetSelectedTarget().GetExecutable().GetFilename(), exe=False,
+            startstr = name)
+
+        # Let's check the stack traces of the attached process.
+        import lldbsuite.test.lldbutil as lldbutil
+        stacktraces = lldbutil.print_stacktraces(process, string_buffer=True)
+        self.expect(stacktraces, exe=False,
+            substrs = ['main.c:%d' % self.line2,
+                       '(int)argc=3'])
diff --git a/packages/Python/lldbsuite/test/python_api/hello_world/main.c b/packages/Python/lldbsuite/test/python_api/hello_world/main.c
new file mode 100644
index 0000000..31a041e
--- /dev/null
+++ b/packages/Python/lldbsuite/test/python_api/hello_world/main.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+
+#if defined(__linux__)
+#include <sys/prctl.h>
+#endif
+
+int main(int argc, char const *argv[]) {
+
+#if defined(__linux__)
+    // Immediately enable any ptracer so that we can allow the stub attach
+    // operation to succeed.  Some Linux kernels are locked down so that
+    // only an ancestor process can be a ptracer of a process.  This disables that
+    // restriction.  Without it, attach-related stub tests will fail.
+#if defined(PR_SET_PTRACER) && defined(PR_SET_PTRACER_ANY)
+    int prctl_result;
+
+    // For now we execute on best effort basis.  If this fails for
+    // some reason, so be it.
+    prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
+    (void) prctl_result;
+#endif
+#endif
+
+    printf("Hello world.\n"); // Set break point at this line.
+    if (argc == 1)
+        return 0;
+
+    // Waiting to be attached by the debugger, otherwise.
+    char line[100];
+    while (fgets(line, sizeof(line), stdin)) { // Waiting to be attached...
+        printf("input line=>%s\n", line);
+    }
+
+    printf("Exiting now\n");
+}