53c5ddf0d7
This test is incorrect as functions that return lldb.SBThread objects never return None, they just return lldb.SBThread objects that contain invalid opaque classes. llvm-svn: 177416
315 lines
12 KiB
Python
315 lines
12 KiB
Python
"""
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Test SBTarget APIs.
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"""
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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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class TargetAPITestCase(TestBase):
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mydir = os.path.join("python_api", "target")
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_find_global_variables_with_dsym(self):
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"""Exercise SBTaget.FindGlobalVariables() API."""
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d = {'EXE': 'a.out'}
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self.buildDsym(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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self.find_global_variables('a.out')
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#rdar://problem/9700873
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# Find global variable value fails for dwarf if inferior not started
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# (Was CrashTracer: [USER] 1 crash in Python at _lldb.so: lldb_private::MemoryCache::Read + 94)
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#
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# It does not segfaults now. But for dwarf, the variable value is None if
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# the inferior process does not exist yet. The radar has been updated.
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#@unittest232.skip("segmentation fault -- skipping")
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@python_api_test
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@dwarf_test
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def test_find_global_variables_with_dwarf(self):
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"""Exercise SBTarget.FindGlobalVariables() API."""
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d = {'EXE': 'b.out'}
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self.buildDwarf(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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self.find_global_variables('b.out')
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_find_functions_with_dsym(self):
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"""Exercise SBTaget.FindFunctions() API."""
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d = {'EXE': 'a.out'}
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self.buildDsym(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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self.find_functions('a.out')
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@python_api_test
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@dwarf_test
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def test_find_functions_with_dwarf(self):
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"""Exercise SBTarget.FindFunctions() API."""
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d = {'EXE': 'b.out'}
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self.buildDwarf(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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self.find_functions('b.out')
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_get_description_with_dsym(self):
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"""Exercise SBTaget.GetDescription() API."""
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self.buildDsym()
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self.get_description()
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@python_api_test
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@dwarf_test
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def test_get_description_with_dwarf(self):
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"""Exercise SBTarget.GetDescription() API."""
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self.buildDwarf()
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self.get_description()
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_launch_new_process_and_redirect_stdout_with_dsym(self):
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"""Exercise SBTaget.Launch() API."""
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self.buildDsym()
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self.launch_new_process_and_redirect_stdout()
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@python_api_test
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@dwarf_test
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def test_launch_new_process_and_redirect_stdout_with_dwarf(self):
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"""Exercise SBTarget.Launch() API."""
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self.buildDwarf()
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self.launch_new_process_and_redirect_stdout()
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_resolve_symbol_context_with_address_with_dsym(self):
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"""Exercise SBTaget.ResolveSymbolContextForAddress() API."""
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self.buildDsym()
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self.resolve_symbol_context_with_address()
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@python_api_test
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@dwarf_test
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def test_resolve_symbol_context_with_address_with_dwarf(self):
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"""Exercise SBTarget.ResolveSymbolContextForAddress() API."""
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self.buildDwarf()
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self.resolve_symbol_context_with_address()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to of function 'c'.
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self.line1 = line_number('main.c', '// Find the line number for breakpoint 1 here.')
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self.line2 = line_number('main.c', '// Find the line number for breakpoint 2 here.')
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def find_global_variables(self, exe_name):
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"""Exercise SBTaget.FindGlobalVariables() API."""
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exe = os.path.join(os.getcwd(), exe_name)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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#rdar://problem/9700873
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# Find global variable value fails for dwarf if inferior not started
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# (Was CrashTracer: [USER] 1 crash in Python at _lldb.so: lldb_private::MemoryCache::Read + 94)
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#
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# Remove the lines to create a breakpoint and to start the inferior
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# which are workarounds for the dwarf case.
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breakpoint = target.BreakpointCreateByLocation('main.c', self.line1)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(None, None, os.getcwd())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Make sure we hit our breakpoint:
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thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint)
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self.assertTrue (len(thread_list) == 1)
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value_list = target.FindGlobalVariables('my_global_var_of_char_type', 3)
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self.assertTrue(value_list.GetSize() == 1)
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my_global_var = value_list.GetValueAtIndex(0)
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self.DebugSBValue(my_global_var)
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self.assertTrue(my_global_var)
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self.expect(my_global_var.GetName(), exe=False,
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startstr = "my_global_var_of_char_type")
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self.expect(my_global_var.GetTypeName(), exe=False,
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startstr = "char")
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self.expect(my_global_var.GetValue(), exe=False,
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startstr = "'X'")
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# While we are at it, let's also exercise the similar SBModule.FindGlobalVariables() API.
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for m in target.module_iter():
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if m.GetFileSpec().GetDirectory() == os.getcwd() and m.GetFileSpec().GetFilename() == exe_name:
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value_list = m.FindGlobalVariables(target, 'my_global_var_of_char_type', 3)
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self.assertTrue(value_list.GetSize() == 1)
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self.assertTrue(value_list.GetValueAtIndex(0).GetValue() == "'X'")
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break
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def find_functions(self, exe_name):
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"""Exercise SBTaget.FindFunctions() API."""
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exe = os.path.join(os.getcwd(), exe_name)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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list = target.FindFunctions('c', lldb.eFunctionNameTypeAuto)
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self.assertTrue(list.GetSize() == 1)
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for sc in list:
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self.assertTrue(sc.GetModule().GetFileSpec().GetFilename() == exe_name)
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self.assertTrue(sc.GetSymbol().GetName() == 'c')
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def get_description(self):
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"""Exercise SBTaget.GetDescription() API."""
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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from lldbutil import get_description
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# get_description() allows no option to mean lldb.eDescriptionLevelBrief.
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desc = get_description(target)
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#desc = get_description(target, option=lldb.eDescriptionLevelBrief)
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if not desc:
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self.fail("SBTarget.GetDescription() failed")
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self.expect(desc, exe=False,
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substrs = ['a.out'])
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self.expect(desc, exe=False, matching=False,
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substrs = ['Target', 'Module', 'Breakpoint'])
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desc = get_description(target, option=lldb.eDescriptionLevelFull)
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if not desc:
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self.fail("SBTarget.GetDescription() failed")
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self.expect(desc, exe=False,
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substrs = ['a.out', 'Target', 'Module', 'Breakpoint'])
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def launch_new_process_and_redirect_stdout(self):
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"""Exercise SBTaget.Launch() API with redirected stdout."""
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Add an extra twist of stopping the inferior in a breakpoint, and then continue till it's done.
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# We should still see the entire stdout redirected once the process is finished.
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line = line_number('main.c', '// a(3) -> c(3)')
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breakpoint = target.BreakpointCreateByLocation('main.c', line)
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# Now launch the process, do not stop at entry point, and redirect stdout to "stdout.txt" file.
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# The inferior should run to completion after "process.Continue()" call.
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error = lldb.SBError()
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process = target.Launch (self.dbg.GetListener(), None, None, None, "stdout.txt", None, None, 0, False, error)
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process.Continue()
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#self.runCmd("process status")
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# The 'stdout.txt' file should now exist.
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self.assertTrue(os.path.isfile("stdout.txt"),
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"'stdout.txt' exists due to redirected stdout via SBTarget.Launch() API.")
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# Read the output file produced by running the program.
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with open('stdout.txt', 'r') as f:
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output = f.read()
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# Let's delete the 'stdout.txt' file as a cleanup step.
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try:
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os.remove("stdout.txt")
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pass
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except OSError:
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pass
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self.expect(output, exe=False,
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substrs = ["a(1)", "b(2)", "a(3)"])
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def resolve_symbol_context_with_address(self):
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"""Exercise SBTaget.ResolveSymbolContextForAddress() API."""
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Now create the two breakpoints inside function 'a'.
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breakpoint1 = target.BreakpointCreateByLocation('main.c', self.line1)
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breakpoint2 = target.BreakpointCreateByLocation('main.c', self.line2)
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#print "breakpoint1:", breakpoint1
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#print "breakpoint2:", breakpoint2
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self.assertTrue(breakpoint1 and
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breakpoint1.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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self.assertTrue(breakpoint2 and
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breakpoint2.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(None, None, os.getcwd())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Frame #0 should be on self.line1.
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self.assertTrue(process.GetState() == lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition")
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#self.runCmd("process status")
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frame0 = thread.GetFrameAtIndex(0)
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lineEntry = frame0.GetLineEntry()
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self.assertTrue(lineEntry.GetLine() == self.line1)
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address1 = lineEntry.GetStartAddress()
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# Continue the inferior, the breakpoint 2 should be hit.
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process.Continue()
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self.assertTrue(process.GetState() == lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition")
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#self.runCmd("process status")
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frame0 = thread.GetFrameAtIndex(0)
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lineEntry = frame0.GetLineEntry()
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self.assertTrue(lineEntry.GetLine() == self.line2)
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address2 = lineEntry.GetStartAddress()
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#print "address1:", address1
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#print "address2:", address2
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# Now call SBTarget.ResolveSymbolContextForAddress() with the addresses from our line entry.
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context1 = target.ResolveSymbolContextForAddress(address1, lldb.eSymbolContextEverything)
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context2 = target.ResolveSymbolContextForAddress(address2, lldb.eSymbolContextEverything)
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self.assertTrue(context1 and context2)
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#print "context1:", context1
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#print "context2:", context2
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# Verify that the context point to the same function 'a'.
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symbol1 = context1.GetSymbol()
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symbol2 = context2.GetSymbol()
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self.assertTrue(symbol1 and symbol2)
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#print "symbol1:", symbol1
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#print "symbol2:", symbol2
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from lldbutil import get_description
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desc1 = get_description(symbol1)
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desc2 = get_description(symbol2)
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self.assertTrue(desc1 and desc2 and desc1 == desc2,
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"The two addresses should resolve to the same symbol")
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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