| """ |
| Test SBTarget APIs. |
| """ |
| |
| from __future__ import print_function |
| |
| import lldb_shared |
| |
| import unittest2 |
| import os, time |
| import re |
| import lldb, lldbutil |
| from lldbtest import * |
| |
| class TargetAPITestCase(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 for breakpoint 1 here.') |
| self.line2 = line_number('main.c', '// Find the line number for breakpoint 2 here.') |
| self.line_main = line_number("main.c", "// Set a break at entry to main.") |
| |
| #rdar://problem/9700873 |
| # Find global variable value fails for dwarf if inferior not started |
| # (Was CrashTracer: [USER] 1 crash in Python at _lldb.so: lldb_private::MemoryCache::Read + 94) |
| # |
| # It does not segfaults now. But for dwarf, the variable value is None if |
| # the inferior process does not exist yet. The radar has been updated. |
| #@unittest232.skip("segmentation fault -- skipping") |
| @add_test_categories(['pyapi']) |
| def test_find_global_variables(self): |
| """Exercise SBTarget.FindGlobalVariables() API.""" |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| self.find_global_variables('b.out') |
| |
| @add_test_categories(['pyapi']) |
| @expectedFailureWindows("llvm.org/pr24778") |
| def test_find_functions(self): |
| """Exercise SBTarget.FindFunctions() API.""" |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| self.find_functions('b.out') |
| |
| @add_test_categories(['pyapi']) |
| def test_get_description(self): |
| """Exercise SBTarget.GetDescription() API.""" |
| self.build() |
| self.get_description() |
| |
| @add_test_categories(['pyapi']) |
| def test_launch_new_process_and_redirect_stdout(self): |
| """Exercise SBTarget.Launch() API.""" |
| self.build() |
| self.launch_new_process_and_redirect_stdout() |
| |
| @add_test_categories(['pyapi']) |
| def test_resolve_symbol_context_with_address(self): |
| """Exercise SBTarget.ResolveSymbolContextForAddress() API.""" |
| self.build() |
| self.resolve_symbol_context_with_address() |
| |
| @add_test_categories(['pyapi']) |
| def test_get_platform(self): |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| target = self.create_simple_target('b.out') |
| platform = target.platform |
| self.assertTrue(platform, VALID_PLATFORM) |
| |
| @add_test_categories(['pyapi']) |
| def test_get_data_byte_size(self): |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| target = self.create_simple_target('b.out') |
| self.assertEquals(target.data_byte_size, 1) |
| |
| @add_test_categories(['pyapi']) |
| def test_get_code_byte_size(self): |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| target = self.create_simple_target('b.out') |
| self.assertEquals(target.code_byte_size, 1) |
| |
| @add_test_categories(['pyapi']) |
| def test_resolve_file_address(self): |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| target = self.create_simple_target('b.out') |
| |
| # find the file address in the .data section of the main |
| # module |
| data_section = self.find_data_section(target) |
| data_section_addr = data_section.file_addr |
| |
| # resolve the above address, and compare the address produced |
| # by the resolution against the original address/section |
| res_file_addr = target.ResolveFileAddress(data_section_addr) |
| self.assertTrue(res_file_addr.IsValid()) |
| |
| self.assertEquals(data_section_addr, res_file_addr.file_addr) |
| |
| data_section2 = res_file_addr.section |
| self.assertIsNotNone(data_section2) |
| self.assertEquals(data_section.name, data_section2.name) |
| |
| @add_test_categories(['pyapi']) |
| def test_read_memory(self): |
| d = {'EXE': 'b.out'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| target = self.create_simple_target('b.out') |
| |
| breakpoint = target.BreakpointCreateByLocation("main.c", self.line_main) |
| self.assertTrue(breakpoint, VALID_BREAKPOINT) |
| |
| # Put debugger into synchronous mode so when we target.LaunchSimple returns |
| # it will guaranteed to be at the breakpoint |
| self.dbg.SetAsync(False) |
| |
| # Launch the process, and do not stop at the entry point. |
| process = target.LaunchSimple (None, None, self.get_process_working_directory()) |
| |
| # find the file address in the .data section of the main |
| # module |
| data_section = self.find_data_section(target) |
| sb_addr = lldb.SBAddress(data_section, 0) |
| error = lldb.SBError() |
| content = target.ReadMemory(sb_addr, 1, error) |
| self.assertTrue(error.Success(), "Make sure memory read succeeded") |
| self.assertEquals(len(content), 1) |
| |
| def create_simple_target(self, fn): |
| exe = os.path.join(os.getcwd(), fn) |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| return target |
| |
| def find_data_section(self, target): |
| mod = target.GetModuleAtIndex(0) |
| data_section = None |
| for s in mod.sections: |
| sect_type = s.GetSectionType() |
| if sect_type == lldb.eSectionTypeData: |
| data_section = s |
| break |
| elif sect_type == lldb.eSectionTypeContainer: |
| for i in range(s.GetNumSubSections()): |
| ss = s.GetSubSectionAtIndex(i) |
| sect_type = ss.GetSectionType() |
| if sect_type == lldb.eSectionTypeData: |
| data_section = ss |
| break |
| |
| self.assertIsNotNone(data_section) |
| return data_section |
| |
| def find_global_variables(self, exe_name): |
| """Exercise SBTaget.FindGlobalVariables() API.""" |
| exe = os.path.join(os.getcwd(), exe_name) |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| #rdar://problem/9700873 |
| # Find global variable value fails for dwarf if inferior not started |
| # (Was CrashTracer: [USER] 1 crash in Python at _lldb.so: lldb_private::MemoryCache::Read + 94) |
| # |
| # Remove the lines to create a breakpoint and to start the inferior |
| # which are workarounds for the dwarf case. |
| |
| breakpoint = target.BreakpointCreateByLocation('main.c', self.line1) |
| self.assertTrue(breakpoint, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple (None, None, self.get_process_working_directory()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| # Make sure we hit our breakpoint: |
| thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint) |
| self.assertTrue (len(thread_list) == 1) |
| |
| value_list = target.FindGlobalVariables('my_global_var_of_char_type', 3) |
| self.assertTrue(value_list.GetSize() == 1) |
| my_global_var = value_list.GetValueAtIndex(0) |
| self.DebugSBValue(my_global_var) |
| self.assertTrue(my_global_var) |
| self.expect(my_global_var.GetName(), exe=False, |
| startstr = "my_global_var_of_char_type") |
| self.expect(my_global_var.GetTypeName(), exe=False, |
| startstr = "char") |
| self.expect(my_global_var.GetValue(), exe=False, |
| startstr = "'X'") |
| |
| # While we are at it, let's also exercise the similar SBModule.FindGlobalVariables() API. |
| for m in target.module_iter(): |
| if os.path.normpath(m.GetFileSpec().GetDirectory()) == os.getcwd() and m.GetFileSpec().GetFilename() == exe_name: |
| value_list = m.FindGlobalVariables(target, 'my_global_var_of_char_type', 3) |
| self.assertTrue(value_list.GetSize() == 1) |
| self.assertTrue(value_list.GetValueAtIndex(0).GetValue() == "'X'") |
| break |
| |
| def find_functions(self, exe_name): |
| """Exercise SBTaget.FindFunctions() API.""" |
| exe = os.path.join(os.getcwd(), exe_name) |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| list = target.FindFunctions('c', lldb.eFunctionNameTypeAuto) |
| self.assertTrue(list.GetSize() == 1) |
| |
| for sc in list: |
| self.assertTrue(sc.GetModule().GetFileSpec().GetFilename() == exe_name) |
| self.assertTrue(sc.GetSymbol().GetName() == 'c') |
| |
| def get_description(self): |
| """Exercise SBTaget.GetDescription() API.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| from lldbutil import get_description |
| |
| # get_description() allows no option to mean lldb.eDescriptionLevelBrief. |
| desc = get_description(target) |
| #desc = get_description(target, option=lldb.eDescriptionLevelBrief) |
| if not desc: |
| self.fail("SBTarget.GetDescription() failed") |
| self.expect(desc, exe=False, |
| substrs = ['a.out']) |
| self.expect(desc, exe=False, matching=False, |
| substrs = ['Target', 'Module', 'Breakpoint']) |
| |
| desc = get_description(target, option=lldb.eDescriptionLevelFull) |
| if not desc: |
| self.fail("SBTarget.GetDescription() failed") |
| self.expect(desc, exe=False, |
| substrs = ['a.out', 'Target', 'Module', 'Breakpoint']) |
| |
| @not_remote_testsuite_ready |
| def launch_new_process_and_redirect_stdout(self): |
| """Exercise SBTaget.Launch() API with redirected stdout.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Add an extra twist of stopping the inferior in a breakpoint, and then continue till it's done. |
| # We should still see the entire stdout redirected once the process is finished. |
| line = line_number('main.c', '// a(3) -> c(3)') |
| breakpoint = target.BreakpointCreateByLocation('main.c', line) |
| |
| # Now launch the process, do not stop at entry point, and redirect stdout to "stdout.txt" file. |
| # The inferior should run to completion after "process.Continue()" call. |
| local_path = "stdout.txt"; |
| if lldb.remote_platform: |
| stdout_path = lldbutil.append_to_process_working_directory("lldb-stdout-redirect.txt") |
| else: |
| stdout_path = local_path |
| error = lldb.SBError() |
| process = target.Launch (self.dbg.GetListener(), None, None, None, stdout_path, None, None, 0, False, error) |
| process.Continue() |
| #self.runCmd("process status") |
| if lldb.remote_platform: |
| # copy output file to host |
| lldb.remote_platform.Get(lldb.SBFileSpec(stdout_path), lldb.SBFileSpec(local_path)) |
| |
| # The 'stdout.txt' file should now exist. |
| self.assertTrue(os.path.isfile("stdout.txt"), |
| "'stdout.txt' exists due to redirected stdout via SBTarget.Launch() API.") |
| |
| # Read the output file produced by running the program. |
| with open('stdout.txt', 'r') as f: |
| output = f.read() |
| |
| # Let's delete the 'stdout.txt' file as a cleanup step. |
| try: |
| os.remove("stdout.txt") |
| pass |
| except OSError: |
| pass |
| |
| self.expect(output, exe=False, |
| substrs = ["a(1)", "b(2)", "a(3)"]) |
| |
| |
| def resolve_symbol_context_with_address(self): |
| """Exercise SBTaget.ResolveSymbolContextForAddress() API.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Now create the two breakpoints inside function 'a'. |
| breakpoint1 = target.BreakpointCreateByLocation('main.c', self.line1) |
| breakpoint2 = target.BreakpointCreateByLocation('main.c', self.line2) |
| #print("breakpoint1:", breakpoint1) |
| #print("breakpoint2:", breakpoint2) |
| self.assertTrue(breakpoint1 and |
| breakpoint1.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| self.assertTrue(breakpoint2 and |
| breakpoint2.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple (None, None, self.get_process_working_directory()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # Frame #0 should be on self.line1. |
| self.assertTrue(process.GetState() == lldb.eStateStopped) |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition") |
| #self.runCmd("process status") |
| frame0 = thread.GetFrameAtIndex(0) |
| lineEntry = frame0.GetLineEntry() |
| self.assertTrue(lineEntry.GetLine() == self.line1) |
| |
| address1 = lineEntry.GetStartAddress() |
| |
| # Continue the inferior, the breakpoint 2 should be hit. |
| process.Continue() |
| self.assertTrue(process.GetState() == lldb.eStateStopped) |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition") |
| #self.runCmd("process status") |
| frame0 = thread.GetFrameAtIndex(0) |
| lineEntry = frame0.GetLineEntry() |
| self.assertTrue(lineEntry.GetLine() == self.line2) |
| |
| address2 = lineEntry.GetStartAddress() |
| |
| #print("address1:", address1) |
| #print("address2:", address2) |
| |
| # Now call SBTarget.ResolveSymbolContextForAddress() with the addresses from our line entry. |
| context1 = target.ResolveSymbolContextForAddress(address1, lldb.eSymbolContextEverything) |
| context2 = target.ResolveSymbolContextForAddress(address2, lldb.eSymbolContextEverything) |
| |
| self.assertTrue(context1 and context2) |
| #print("context1:", context1) |
| #print("context2:", context2) |
| |
| # Verify that the context point to the same function 'a'. |
| symbol1 = context1.GetSymbol() |
| symbol2 = context2.GetSymbol() |
| self.assertTrue(symbol1 and symbol2) |
| #print("symbol1:", symbol1) |
| #print("symbol2:", symbol2) |
| |
| from lldbutil import get_description |
| desc1 = get_description(symbol1) |
| desc2 = get_description(symbol2) |
| self.assertTrue(desc1 and desc2 and desc1 == desc2, |
| "The two addresses should resolve to the same symbol") |