TestKernVerStrLCNOTE.py
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"""Test that corefiles with an LC_NOTE "kern ver str" load command is used."""
import os
import re
import subprocess
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestKernVerStrLCNOTE(TestBase):
mydir = TestBase.compute_mydir(__file__)
@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(self):
self.build()
self.test_exe = self.getBuildArtifact("a.out")
self.create_corefile = self.getBuildArtifact("create-empty-corefile")
self.dsym_for_uuid = self.getBuildArtifact("dsym-for-uuid.sh")
self.corefile = self.getBuildArtifact("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))
dwarfdump_uuid_regex = re.compile(
'UUID: ([-0-9a-fA-F]+) \(([^\(]+)\) .*')
dwarfdump_cmd_output = subprocess.check_output(
('/usr/bin/dwarfdump --uuid "%s"' % self.test_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.test_exe
### and its dSYM when given self.test_exe's UUID.
shell_cmds = [
'#! /bin/sh',
'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\\">"',
'',
'# the last argument is probably the uuid',
'while [ $# -gt 1 ]',
'do',
' shift',
'done',
'echo "<dict><key>$1</key><dict>"',
'',
'if [ "$1" = "%s" ]' % aout_uuid,
'then',
' echo "<key>DBGArchitecture</key><string>x86_64</string>"',
' echo "<key>DBGDSYMPath</key><string>%s.dSYM/Contents/Resources/DWARF/%s</string>"' % (self.test_exe, os.path.basename(self.test_exe)),
' echo "<key>DBGSymbolRichExecutable</key><string>%s</string>"' % self.test_exe,
'else',
' echo "<key>DBGError</key><string>not found</string>"',
' ret=1',
'fi',
'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)
### Create our corefile
retcode = call(self.create_corefile + " " + self.corefile + " " + self.test_exe, shell=True)
### 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!
self.target = self.dbg.CreateTarget('')
err = lldb.SBError()
self.process = self.target.LoadCore(self.corefile)
self.assertEqual(self.process.IsValid(), True)
if self.TraceOn():
self.runCmd("image list")
self.assertEqual(self.target.GetNumModules(), 1)
fspec = self.target.GetModuleAtIndex(0).GetFileSpec()
filepath = fspec.GetDirectory() + "/" + fspec.GetFilename()
self.assertEqual(filepath, self.test_exe)