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"""Test that corefiles with LC_NOTE "kern ver str" and "main bin spec" load commands works."""
import os
import re
import subprocess
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestFirmwareCorefiles(TestBase):
mydir = TestBase.compute_mydir(__file__)
def initial_setup(self):
self.build()
self.aout_exe = self.getBuildArtifact("a.out")
self.aout_exe_basename = "a.out"
self.create_corefile = self.getBuildArtifact("create-empty-corefile")
self.dsym_for_uuid = self.getBuildArtifact("dsym-for-uuid.sh")
self.verstr_corefile = self.getBuildArtifact("verstr.core")
self.verstr_corefile_addr = self.getBuildArtifact("verstr-addr.core")
self.binspec_corefile = self.getBuildArtifact("binspec.core")
self.binspec_corefile_addr = self.getBuildArtifact("binspec-addr.core")
## We can hook in our dsym-for-uuid shell script to lldb with this env
## var instead of requiring a defaults write.
os.environ['LLDB_APPLE_DSYMFORUUID_EXECUTABLE'] = self.dsym_for_uuid
self.addTearDownHook(lambda: os.environ.pop('LLDB_APPLE_DSYMFORUUID_EXECUTABLE', None))
self.runCmd("settings set target.load-script-from-symbol-file true")
self.addTearDownHook(lambda: self.runCmd("settings set target.load-script-from-symbol-file false"))
dsym_python_dir = '%s.dSYM/Contents/Resources/Python' % (self.aout_exe)
os.makedirs(dsym_python_dir)
python_os_plugin_path = os.path.join(self.getSourceDir(),
'operating_system.py')
python_init = [
'def __lldb_init_module(debugger, internal_dict):',
' debugger.HandleCommand(\'settings set target.process.python-os-plugin-path %s\')' % python_os_plugin_path,
]
with open(dsym_python_dir + "/a_out.py", "w") as writer:
for l in python_init:
writer.write(l + '\n')
dwarfdump_uuid_regex = re.compile(
'UUID: ([-0-9a-fA-F]+) \(([^\(]+)\) .*')
dwarfdump_cmd_output = subprocess.check_output(
('/usr/bin/dwarfdump --uuid "%s"' % self.aout_exe), shell=True).decode("utf-8")
aout_uuid = None
for line in dwarfdump_cmd_output.splitlines():
match = dwarfdump_uuid_regex.search(line)
if match:
aout_uuid = match.group(1)
self.assertNotEqual(aout_uuid, None, "Could not get uuid of built a.out")
### Create our dsym-for-uuid shell script which returns self.aout_exe
shell_cmds = [
'#! /bin/sh',
'# the last argument is the uuid',
'while [ $# -gt 1 ]',
'do',
' shift',
'done',
'ret=0',
'echo "<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>"',
'echo "<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">"',
'echo "<plist version=\\"1.0\\">"',
'',
'if [ "$1" != "%s" ]' % (aout_uuid),
'then',
' echo "<key>DBGError</key><string>not found</string>"',
' echo "</plist>"',
' exit 1',
'fi',
' uuid=%s' % aout_uuid,
' bin=%s' % self.aout_exe,
' dsym=%s.dSYM/Contents/Resources/DWARF/%s' % (self.aout_exe, os.path.basename(self.aout_exe)),
'echo "<dict><key>$uuid</key><dict>"',
'',
'echo "<key>DBGDSYMPath</key><string>$dsym</string>"',
'echo "<key>DBGSymbolRichExecutable</key><string>$bin</string>"',
'echo "</dict></dict></plist>"',
'exit $ret'
]
with open(self.dsym_for_uuid, "w") as writer:
for l in shell_cmds:
writer.write(l + '\n')
os.chmod(self.dsym_for_uuid, 0o755)
self.slide = 0x70000000000
### Create our corefile
# 0xffffffffffffffff means load address unknown
retcode = call(self.create_corefile + " version-string " + self.verstr_corefile + " " + self.aout_exe + " 0xffffffffffffffff", shell=True)
retcode = call(self.create_corefile + " version-string " + self.verstr_corefile_addr + " " + self.aout_exe + (" 0x%x" % self.slide), shell=True)
retcode = call(self.create_corefile + " main-bin-spec " + self.binspec_corefile + " " + self.aout_exe + " 0xffffffffffffffff", shell=True)
retcode = call(self.create_corefile + " main-bin-spec " + self.binspec_corefile_addr + " " + self.aout_exe + (" 0x%x" % self.slide), shell=True)
@skipIf(debug_info=no_match(["dsym"]), bugnumber="This test is looking explicitly for a dSYM")
@skipIf(archs=no_match(['x86_64']))
@skipUnlessDarwin
def test_lc_note_version_string(self):
self.initial_setup()
if self.TraceOn():
self.runCmd("log enable lldb dyld host")
self.addTearDownHook(lambda: self.runCmd("log disable lldb dyld host"))
### Now run lldb on the corefile
### which will give us a UUID
### which we call dsym-for-uuid.sh with
### which gives us a binary and dSYM
### which lldb should load!
# First, try the "kern ver str" corefile
self.target = self.dbg.CreateTarget('')
err = lldb.SBError()
if self.TraceOn():
self.runCmd("script print('loading corefile %s')" % self.verstr_corefile)
self.process = self.target.LoadCore(self.verstr_corefile)
self.assertEqual(self.process.IsValid(), True)
if self.TraceOn():
self.runCmd("image list")
self.runCmd("target mod dump sections")
self.assertEqual(self.target.GetNumModules(), 1)
fspec = self.target.GetModuleAtIndex(0).GetFileSpec()
self.assertEqual(fspec.GetFilename(), self.aout_exe_basename)
self.process.Kill()
self.process = None
self.target.Clear()
self.target = None
self.dbg.MemoryPressureDetected()
# Second, try the "kern ver str" corefile where it loads at an address
self.target = self.dbg.CreateTarget('')
err = lldb.SBError()
if self.TraceOn():
self.runCmd("script print('loading corefile %s')" % self.verstr_corefile_addr)
self.process = self.target.LoadCore(self.verstr_corefile_addr)
self.assertEqual(self.process.IsValid(), True)
if self.TraceOn():
self.runCmd("image list")
self.runCmd("target mod dump sections")
self.assertEqual(self.target.GetNumModules(), 1)
fspec = self.target.GetModuleAtIndex(0).GetFileSpec()
self.assertEqual(fspec.GetFilename(), self.aout_exe_basename)
main_sym = self.target.GetModuleAtIndex(0).FindSymbol("main", lldb.eSymbolTypeAny)
main_addr = main_sym.GetStartAddress()
self.assertGreater(main_addr.GetLoadAddress(self.target), self.slide)
self.assertNotEqual(main_addr.GetLoadAddress(self.target), lldb.LLDB_INVALID_ADDRESS)
self.process.Kill()
self.process = None
self.target.Clear()
self.target = None
self.dbg.MemoryPressureDetected()
@skipIf(debug_info=no_match(["dsym"]), bugnumber="This test is looking explicitly for a dSYM")
@skipIf(archs=no_match(['x86_64']))
@skipUnlessDarwin
def test_lc_note_main_bin_spec(self):
self.initial_setup()
if self.TraceOn():
self.runCmd("log enable lldb dyld host")
self.addTearDownHook(lambda: self.runCmd("log disable lldb dyld host"))
# Third, try the "main bin spec" corefile
self.target = self.dbg.CreateTarget('')
if self.TraceOn():
self.runCmd("script print('loading corefile %s')" % self.binspec_corefile)
self.process = self.target.LoadCore(self.binspec_corefile)
self.assertEqual(self.process.IsValid(), True)
if self.TraceOn():
self.runCmd("image list")
self.runCmd("target mod dump sections")
self.assertEqual(self.target.GetNumModules(), 1)
fspec = self.target.GetModuleAtIndex(0).GetFileSpec()
self.assertEqual(fspec.GetFilename(), self.aout_exe_basename)
self.process.Kill()
self.process = None
self.target.Clear()
self.target = None
self.dbg.MemoryPressureDetected()
# Fourth, try the "main bin spec" corefile where it loads at an address
self.target = self.dbg.CreateTarget('')
if self.TraceOn():
self.runCmd("script print('loading corefile %s')" % self.binspec_corefile_addr)
self.process = self.target.LoadCore(self.binspec_corefile_addr)
self.assertEqual(self.process.IsValid(), True)
if self.TraceOn():
self.runCmd("image list")
self.runCmd("target mod dump sections")
self.assertEqual(self.target.GetNumModules(), 1)
fspec = self.target.GetModuleAtIndex(0).GetFileSpec()
self.assertEqual(fspec.GetFilename(), self.aout_exe_basename)
main_sym = self.target.GetModuleAtIndex(0).FindSymbol("main", lldb.eSymbolTypeAny)
main_addr = main_sym.GetStartAddress()
self.assertGreater(main_addr.GetLoadAddress(self.target), self.slide)
self.assertNotEqual(main_addr.GetLoadAddress(self.target), lldb.LLDB_INVALID_ADDRESS)
self.process.Kill()
self.process = None
self.target.Clear()
self.target = None
self.dbg.MemoryPressureDetected()
@skipIf(debug_info=no_match(["dsym"]), bugnumber="This test is looking explicitly for a dSYM")
@skipIf(archs=no_match(['x86_64']))
@skipUnlessDarwin
def test_lc_note_main_bin_spec_os_plugin(self):
self.initial_setup()
if self.TraceOn():
self.runCmd("log enable lldb dyld host")
self.addTearDownHook(lambda: self.runCmd("log disable lldb dyld host"))
# Now load the binary and confirm that we load the OS plugin.
self.target = self.dbg.CreateTarget('')
if self.TraceOn():
self.runCmd("script print('loading corefile %s with OS plugin')" % self.binspec_corefile_addr)
self.process = self.target.LoadCore(self.binspec_corefile_addr)
self.assertEqual(self.process.IsValid(), True)
if self.TraceOn():
self.runCmd("image list")
self.runCmd("target mod dump sections")
self.runCmd("thread list")
self.assertEqual(self.target.GetNumModules(), 1)
fspec = self.target.GetModuleAtIndex(0).GetFileSpec()
self.assertEqual(fspec.GetFilename(), self.aout_exe_basename)
# Verify our OS plug-in threads showed up
thread = self.process.GetThreadByID(0x111111111)
self.assertTrue(thread.IsValid(),
"Make sure there is a thread 0x111111111 after we load the python OS plug-in")
thread = self.process.GetThreadByID(0x222222222)
self.assertTrue(thread.IsValid(),
"Make sure there is a thread 0x222222222 after we load the python OS plug-in")
thread = self.process.GetThreadByID(0x333333333)
self.assertTrue(thread.IsValid(),
"Make sure there is a thread 0x333333333 after we load the python OS plug-in")
self.process.Kill()
self.process = None
self.target.Clear()
self.target = None
self.dbg.MemoryPressureDetected()
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