diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/postmortem/elf-core/TestLinuxCore.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/functionalities/postmortem/elf-core/TestLinuxCore.py | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/postmortem/elf-core/TestLinuxCore.py b/packages/Python/lldbsuite/test/functionalities/postmortem/elf-core/TestLinuxCore.py new file mode 100644 index 000000000000..ed46ef1c847e --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/postmortem/elf-core/TestLinuxCore.py @@ -0,0 +1,249 @@ +""" +Test basics of linux core file debugging. +""" + +from __future__ import print_function + +import shutil +import struct + +import lldb +from lldbsuite.test.decorators import * +from lldbsuite.test.lldbtest import * +from lldbsuite.test import lldbutil + + +class LinuxCoreTestCase(TestBase): + NO_DEBUG_INFO_TESTCASE = True + + mydir = TestBase.compute_mydir(__file__) + + _i386_pid = 32306 + _x86_64_pid = 32259 + _s390x_pid = 1045 + + _i386_regions = 4 + _x86_64_regions = 5 + _s390x_regions = 2 + + @skipIf(oslist=['windows']) + @skipIf(triple='^mips') + def test_i386(self): + """Test that lldb can read the process information from an i386 linux core file.""" + self.do_test("linux-i386", self._i386_pid, self._i386_regions) + + @skipIf(oslist=['windows']) + @skipIf(triple='^mips') + def test_x86_64(self): + """Test that lldb can read the process information from an x86_64 linux core file.""" + self.do_test("linux-x86_64", self._x86_64_pid, self._x86_64_regions) + + # This seems to hang on non-s390x platforms for some reason. Disabling + # for now. + @skipIf(archs=no_match(['s390x'])) + @skipIf(triple='^mips') + def test_s390x(self): + """Test that lldb can read the process information from an s390x linux core file.""" + self.do_test("linux-s390x", self._s390x_pid, self._s390x_regions) + + @skipIf(oslist=['windows']) + @skipIf(triple='^mips') + def test_same_pid_running(self): + """Test that we read the information from the core correctly even if we have a running + process with the same PID around""" + try: + shutil.copyfile("linux-x86_64.out", "linux-x86_64-pid.out") + shutil.copyfile("linux-x86_64.core", "linux-x86_64-pid.core") + with open("linux-x86_64-pid.core", "r+b") as f: + # These are offsets into the NT_PRSTATUS and NT_PRPSINFO structures in the note + # segment of the core file. If you update the file, these offsets may need updating + # as well. (Notes can be viewed with readelf --notes.) + for pid_offset in [0x1c4, 0x320]: + f.seek(pid_offset) + self.assertEqual( + struct.unpack( + "<I", + f.read(4))[0], + self._x86_64_pid) + + # We insert our own pid, and make sure the test still + # works. + f.seek(pid_offset) + f.write(struct.pack("<I", os.getpid())) + self.do_test("linux-x86_64-pid", os.getpid(), self._x86_64_regions) + finally: + self.RemoveTempFile("linux-x86_64-pid.out") + self.RemoveTempFile("linux-x86_64-pid.core") + + @skipIf(oslist=['windows']) + @skipIf(triple='^mips') + def test_two_cores_same_pid(self): + """Test that we handle the situation if we have two core files with the same PID + around""" + alttarget = self.dbg.CreateTarget("altmain.out") + altprocess = alttarget.LoadCore("altmain.core") + self.assertTrue(altprocess, PROCESS_IS_VALID) + self.assertEqual(altprocess.GetNumThreads(), 1) + self.assertEqual(altprocess.GetProcessID(), self._x86_64_pid) + + altframe = altprocess.GetSelectedThread().GetFrameAtIndex(0) + self.assertEqual(altframe.GetFunctionName(), "_start") + self.assertEqual( + altframe.GetLineEntry().GetLine(), + line_number( + "altmain.c", + "Frame _start")) + + error = lldb.SBError() + F = altprocess.ReadCStringFromMemory( + altframe.FindVariable("F").GetValueAsUnsigned(), 256, error) + self.assertTrue(error.Success()) + self.assertEqual(F, "_start") + + # without destroying this process, run the test which opens another core file with the + # same pid + self.do_test("linux-x86_64", self._x86_64_pid, self._x86_64_regions) + + @skipIf(oslist=['windows']) + @skipIf(triple='^mips') + def test_FPR_SSE(self): + # check x86_64 core file + target = self.dbg.CreateTarget(None) + self.assertTrue(target, VALID_TARGET) + process = target.LoadCore("linux-fpr_sse_x86_64.core") + + values = {} + values["fctrl"] = "0x037f" + values["fstat"] = "0x0000" + values["ftag"] = "0xff" + values["fop"] = "0x0000" + values["fiseg"] = "0x00000000" + values["fioff"] = "0x0040011e" + values["foseg"] = "0x00000000" + values["fooff"] = "0x00000000" + values["mxcsr"] = "0x00001f80" + values["mxcsrmask"] = "0x0000ffff" + values["st0"] = "{0x99 0xf7 0xcf 0xfb 0x84 0x9a 0x20 0x9a 0xfd 0x3f}" + values["st1"] = "{0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x80 0xff 0x3f}" + values["st2"] = "{0xfe 0x8a 0x1b 0xcd 0x4b 0x78 0x9a 0xd4 0x00 0x40}" + values["st3"] = "{0xac 0x79 0xcf 0xd1 0xf7 0x17 0x72 0xb1 0xfe 0x3f}" + values["st4"] = "{0xbc 0xf0 0x17 0x5c 0x29 0x3b 0xaa 0xb8 0xff 0x3f}" + values["st5"] = "{0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x80 0xff 0x3f}" + values["st6"] = "{0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00}" + values["st7"] = "{0x35 0xc2 0x68 0x21 0xa2 0xda 0x0f 0xc9 0x00 0x40}" + values["xmm0"] = "{0x29 0x31 0x64 0x46 0x29 0x31 0x64 0x46 0x29 0x31 0x64 0x46 0x29 0x31 0x64 0x46}" + values["xmm1"] = "{0x9c 0xed 0x86 0x64 0x9c 0xed 0x86 0x64 0x9c 0xed 0x86 0x64 0x9c 0xed 0x86 0x64}" + values["xmm2"] = "{0x07 0xc2 0x1f 0xd7 0x07 0xc2 0x1f 0xd7 0x07 0xc2 0x1f 0xd7 0x07 0xc2 0x1f 0xd7}" + values["xmm3"] = "{0xa2 0x20 0x48 0x25 0xa2 0x20 0x48 0x25 0xa2 0x20 0x48 0x25 0xa2 0x20 0x48 0x25}" + values["xmm4"] = "{0xeb 0x5a 0xa8 0xc4 0xeb 0x5a 0xa8 0xc4 0xeb 0x5a 0xa8 0xc4 0xeb 0x5a 0xa8 0xc4}" + values["xmm5"] = "{0x49 0x41 0x20 0x0b 0x49 0x41 0x20 0x0b 0x49 0x41 0x20 0x0b 0x49 0x41 0x20 0x0b}" + values["xmm6"] = "{0xf8 0xf1 0x8b 0x4f 0xf8 0xf1 0x8b 0x4f 0xf8 0xf1 0x8b 0x4f 0xf8 0xf1 0x8b 0x4f}" + values["xmm7"] = "{0x13 0xf1 0x30 0xcd 0x13 0xf1 0x30 0xcd 0x13 0xf1 0x30 0xcd 0x13 0xf1 0x30 0xcd}" + + for regname, value in values.iteritems(): + self.expect("register read {}".format(regname), substrs=["{} = {}".format(regname, value)]) + + + # now check i386 core file + target = self.dbg.CreateTarget(None) + self.assertTrue(target, VALID_TARGET) + process = target.LoadCore("linux-fpr_sse_i386.core") + + values["fioff"] = "0x080480cc" + + for regname, value in values.iteritems(): + self.expect("register read {}".format(regname), substrs=["{} = {}".format(regname, value)]) + + def check_memory_regions(self, process, region_count): + region_list = process.GetMemoryRegions() + self.assertEqual(region_list.GetSize(), region_count) + + region = lldb.SBMemoryRegionInfo() + + # Check we have the right number of regions. + self.assertEqual(region_list.GetSize(), region_count) + + # Check that getting a region beyond the last in the list fails. + self.assertFalse( + region_list.GetMemoryRegionAtIndex( + region_count, region)) + + # Check each region is valid. + for i in range(region_list.GetSize()): + # Check we can actually get this region. + self.assertTrue(region_list.GetMemoryRegionAtIndex(i, region)) + + # Every region in the list should be mapped. + self.assertTrue(region.IsMapped()) + + # Test the address at the start of a region returns it's enclosing + # region. + begin_address = region.GetRegionBase() + region_at_begin = lldb.SBMemoryRegionInfo() + error = process.GetMemoryRegionInfo(begin_address, region_at_begin) + self.assertEqual(region, region_at_begin) + + # Test an address in the middle of a region returns it's enclosing + # region. + middle_address = (region.GetRegionBase() + + region.GetRegionEnd()) / 2 + region_at_middle = lldb.SBMemoryRegionInfo() + error = process.GetMemoryRegionInfo( + middle_address, region_at_middle) + self.assertEqual(region, region_at_middle) + + # Test the address at the end of a region returns it's enclosing + # region. + end_address = region.GetRegionEnd() - 1 + region_at_end = lldb.SBMemoryRegionInfo() + error = process.GetMemoryRegionInfo(end_address, region_at_end) + self.assertEqual(region, region_at_end) + + # Check that quering the end address does not return this region but + # the next one. + next_region = lldb.SBMemoryRegionInfo() + error = process.GetMemoryRegionInfo( + region.GetRegionEnd(), next_region) + self.assertNotEqual(region, next_region) + self.assertEqual( + region.GetRegionEnd(), + next_region.GetRegionBase()) + + # Check that query beyond the last region returns an unmapped region + # that ends at LLDB_INVALID_ADDRESS + last_region = lldb.SBMemoryRegionInfo() + region_list.GetMemoryRegionAtIndex(region_count - 1, last_region) + end_region = lldb.SBMemoryRegionInfo() + error = process.GetMemoryRegionInfo( + last_region.GetRegionEnd(), end_region) + self.assertFalse(end_region.IsMapped()) + self.assertEqual( + last_region.GetRegionEnd(), + end_region.GetRegionBase()) + self.assertEqual(end_region.GetRegionEnd(), lldb.LLDB_INVALID_ADDRESS) + + def do_test(self, filename, pid, region_count): + target = self.dbg.CreateTarget(filename + ".out") + process = target.LoadCore(filename + ".core") + self.assertTrue(process, PROCESS_IS_VALID) + self.assertEqual(process.GetNumThreads(), 1) + self.assertEqual(process.GetProcessID(), pid) + + thread = process.GetSelectedThread() + self.assertTrue(thread) + self.assertEqual(thread.GetThreadID(), pid) + backtrace = ["bar", "foo", "_start"] + self.assertEqual(thread.GetNumFrames(), len(backtrace)) + for i in range(len(backtrace)): + frame = thread.GetFrameAtIndex(i) + self.assertTrue(frame) + self.assertEqual(frame.GetFunctionName(), backtrace[i]) + self.assertEqual(frame.GetLineEntry().GetLine(), + line_number("main.c", "Frame " + backtrace[i])) + self.assertEqual( + frame.FindVariable("F").GetValueAsUnsigned(), ord( + backtrace[i][0])) + + self.check_memory_regions(process, region_count) + + self.dbg.DeleteTarget(target) |