[lldb/crashlog] Add CrashLogScriptedProcess & remove interactive mode

[mib]

Summary

This patch introduces a new type of ScriptedProcess: CrashLogScriptedProcess.
It takes advantage of lldb's crashlog parsers and Scripted Processes to
reconstruct a static debugging session with symbolicated stackframes, instead
of just dumping out everything in the user's terminal.

The crashlog command also has an interactive mode that only provide a
very limited experience. This is why this patch removes all the logic
for this interactive mode and creates CrashLogScriptedProcess instead.

This will fetch and load all the libraries that were used by the crashed
thread and re-create all the frames artificially.

rdar://88721117

Signed-off-by: Med Ismail Bennani <[e-mail]>

[JDevlieghere]

lldb/examples/python/crashlog.py

1165–1169

If options.interactive is set explicitly we should honor it. In the future we'll want to use ci.IsInteractive() to decide what to do if nothing is specified. At the same time we should create another option (--non-interactive?) and also honor it, so that this logic would look something like:

if options.interactive:
 // Interactive
else if options.noninteractive:
 // Classic
else if ci and ci.IsInteractive():
 // Interactive
else 
 // Classic

[mib]

This comment was removed by mib.

[mib]

@clayborg I heard from Jim that you might be interested by this patch

[clayborg]

I used this back when I worked at Apple to load thousands of crash logs and get information about the versions of a library that were all involved in the crash. From the Apple crash reporter site, download the zip file with all crash logs, load them all into, use interactive mode to say "image LLDB" and I could see if any of the crashes were in current versions of LLDB after we submitted a fix for something. I am no longer at Apple, so find to remove this feature if no one uses it.

[JDevlieghere]

In D119501#3314991, @clayborg wrote:

I used this back when I worked at Apple to load thousands of crash logs and get information about the versions of a library that were all involved in the crash. From the Apple crash reporter site, download the zip file with all crash logs, load them all into, use interactive mode to say "image LLDB" and I could see if any of the crashes were in current versions of LLDB after we submitted a fix for something. I am no longer at Apple, so find to remove this feature if no one uses it.

We're not really removing it, we're replacing it with a (imho much better) implementation backed by the scripted processes. This gives a "native" way to interactive inspect the crashlog with bt and frame select etc.

[mib]

Merge D119389 into this and address @JDevlieghere comments.

[JDevlieghere]

Test?

lldb/examples/python/crashlog.py

1000

Do we need to have LLDB import it? Can we import it here straight from python?

1165–1174

I'd extract a helper to compute if we need the interactive or batch crashlog to avoid the duplication across the clauses.

1170–1171

Let's hold off on making the interactive one the default for now.

[mib]

lldb/examples/python/crashlog.py

1000

crashlog.py can be imported outside of the debugger, so in my understanding, if we're importing it here directly, lldb's script interpreter might not find the module and class used to create the ScriptedProcess object.

[mib]

Address @JDevlieghere comments. Still working the test.

[JDevlieghere]

lldb/examples/python/crashlog.py

1000

But that's not relevant for the (new) interactive mode? If you run crashlog on the command line it should behave like it does today.

[mib]

lldb/examples/python/crashlog.py

1000

It's actually only relevant for the new interactive mode, since this will import the crashlog scripted process blueprint. Otherwise, launching the process won't work (see line 999) because lldb won't find the managing class module.

[mib]

Add test

[JDevlieghere]

LGTM

[shafik]

Looks like the scripted_crashlog_json.test is broken on green dragon: https://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/41454/testReport/junit/lldb-shell/ScriptInterpreter_Python_Crashlog/scripted_crashlog_json_test/

[mib]

In D119501#3327339, @shafik wrote:

Looks like the scripted_crashlog_json.test is broken on green dragon: https://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/41454/testReport/junit/lldb-shell/ScriptInterpreter_Python_Crashlog/scripted_crashlog_json_test/

@shafik d95961f214a9f2e7abc2844cee309e42eba5600c should fix the test failure on GreenDragon.

lldb/bindings/python/CMakeLists.txt

create_python_package(
     FILES
     "${LLDB_SOURCE_DIR}/examples/python/scripted_process/scripted_process.py")
 
   if(APPLE)
     create_python_package(
       ${swig_target}
       ${lldb_python_target_dir} "macosx"
       FILES "${LLDB_SOURCE_DIR}/examples/python/crashlog.py"
+            "${LLDB_SOURCE_DIR}/examples/python/scripted_process/crashlog_scripted_process.py"
             "${LLDB_SOURCE_DIR}/examples/darwin/heap_find/heap.py")
 
     create_python_package(
       ${swig_target}
       ${lldb_python_target_dir} "macosx/heap"
       FILES "${LLDB_SOURCE_DIR}/examples/darwin/heap_find/heap/heap_find.cpp"
             "${LLDB_SOURCE_DIR}/examples/darwin/heap_find/heap/Makefile"
             NOINIT)

lldb/examples/python/crashlog.py

except ImportError:
     try:
         import lldb
     except ImportError:
         print("error: couldn't locate the 'lldb' module, please set PYTHONPATH correctly")
         sys.exit(1)
 
 from lldb.utils import symbolication
 
-
 def read_plist(s):
     if sys.version_info.major == 3:
         return plistlib.loads(s)
     else:
         return plistlib.readPlistFromString(s)
 
 class CrashLog(symbolication.Symbolicator):
     class Thread:
def parse_instructions(self, line):
         pass
 
 
 def usage():
     print("Usage: lldb-symbolicate.py [-n name] executable-image")
     sys.exit(0)
 
 
-class Interactive(cmd.Cmd):
-    '''Interactive prompt for analyzing one or more Darwin crash logs, type "help" to see a list of supported commands.'''
-    image_option_parser = None
-
-    def __init__(self, crash_logs):
-        cmd.Cmd.__init__(self)
-        self.use_rawinput = False
-        self.intro = 'Interactive crashlogs prompt, type "help" to see a list of supported commands.'
-        self.crash_logs = crash_logs
-        self.prompt = '% '
-
-    def default(self, line):
-        '''Catch all for unknown command, which will exit the interpreter.'''
-        print("uknown command: %s" % line)
-        return True
-
-    def do_q(self, line):
-        '''Quit command'''
-        return True
-
-    def do_quit(self, line):
-        '''Quit command'''
-        return True
-
-    def do_symbolicate(self, line):
-        description = '''Symbolicate one or more darwin crash log files by index to provide source file and line information,
-        inlined stack frames back to the concrete functions, and disassemble the location of the crash
-        for the first frame of the crashed thread.'''
-        option_parser = CreateSymbolicateCrashLogOptions(
-            'symbolicate', description, False)
-        command_args = shlex.split(line)
-        try:
-            (options, args) = option_parser.parse_args(command_args)
-        except:
-            return
-
-        if args:
-            # We have arguments, they must valid be crash log file indexes
-            for idx_str in args:
-                idx = int(idx_str)
-                if idx < len(self.crash_logs):
-                    SymbolicateCrashLog(self.crash_logs[idx], options)
-                else:
-                    print('error: crash log index %u is out of range' % (idx))
-        else:
-            # No arguments, symbolicate all crash logs using the options
-            # provided
-            for idx in range(len(self.crash_logs)):
-                SymbolicateCrashLog(self.crash_logs[idx], options)
-
-    def do_list(self, line=None):
-        '''Dump a list of all crash logs that are currently loaded.
-
-        USAGE: list'''
-        print('%u crash logs are loaded:' % len(self.crash_logs))
-        for (crash_log_idx, crash_log) in enumerate(self.crash_logs):
-            print('[%u] = %s' % (crash_log_idx, crash_log.path))
-
-    def do_image(self, line):
-        '''Dump information about one or more binary images in the crash log given an image basename, or all images if no arguments are provided.'''
-        usage = "usage: %prog [options] <PATH> [PATH ...]"
-        description = '''Dump information about one or more images in all crash logs. The <PATH> can be a full path, image basename, or partial path. Searches are done in this order.'''
-        command_args = shlex.split(line)
-        if not self.image_option_parser:
-            self.image_option_parser = optparse.OptionParser(
-                description=description, prog='image', usage=usage)
-            self.image_option_parser.add_option(
-                '-a',
-                '--all',
-                action='store_true',
-                help='show all images',
-                default=False)
-        try:
-            (options, args) = self.image_option_parser.parse_args(command_args)
-        except:
-            return
-
-        if args:
-            for image_path in args:
-                fullpath_search = image_path[0] == '/'
-                for (crash_log_idx, crash_log) in enumerate(self.crash_logs):
-                    matches_found = 0
-                    for (image_idx, image) in enumerate(crash_log.images):
-                        if fullpath_search:
-                            if image.get_resolved_path() == image_path:
-                                matches_found += 1
-                                print('[%u] ' % (crash_log_idx), image)
-                        else:
-                            image_basename = image.get_resolved_path_basename()
-                            if image_basename == image_path:
-                                matches_found += 1
-                                print('[%u] ' % (crash_log_idx), image)
-                    if matches_found == 0:
-                        for (image_idx, image) in enumerate(crash_log.images):
-                            resolved_image_path = image.get_resolved_path()
-                            if resolved_image_path and string.find(
-                                    image.get_resolved_path(), image_path) >= 0:
-                                print('[%u] ' % (crash_log_idx), image)
-        else:
-            for crash_log in self.crash_logs:
-                for (image_idx, image) in enumerate(crash_log.images):
-                    print('[%u] %s' % (image_idx, image))
-        return False
-
-
-def interactive_crashlogs(debugger, options, args):
-    crash_log_files = list()
-    for arg in args:
-        for resolved_path in glob.glob(arg):
-            crash_log_files.append(resolved_path)
-
-    crash_logs = list()
-    for crash_log_file in crash_log_files:
-        try:
-            crash_log = CrashLogParser().parse(debugger, crash_log_file, options.verbose)
-        except Exception as e:
-            print(e)
-            continue
-        if options.debug:
-            crash_log.dump()
-        if not crash_log.images:
-            print('error: no images in crash log "%s"' % (crash_log))
-            continue
-        else:
-            crash_logs.append(crash_log)
-
-    interpreter = Interactive(crash_logs)
-    # List all crash logs that were imported
-    interpreter.do_list()
-    interpreter.cmdloop()
-
-
 def save_crashlog(debugger, command, exe_ctx, result, dict):
     usage = "usage: %prog [options] <output-path>"
     description = '''Export the state of current target into a crashlog file'''
     parser = optparse.OptionParser(
         description=description,
         prog='save_crashlog',
         usage=usage)
     parser.add_option(
for thread in crash_log.threads:
         thread.dump_symbolicated(crash_log, options)
         print()
 
     if crash_log.errors:
         print("Errors:")
         for error in crash_log.errors:
             print(error)
 
+def load_crashlog_in_scripted_process(debugger, crash_log_file):
+    result = lldb.SBCommandReturnObject()
+
+    crashlog_path = os.path.expanduser(crash_log_file)
+    if not os.path.exists(crashlog_path):
+        result.PutCString("error: crashlog file %s does not exist" % crashlog_path)
+
+    try:
+        crashlog = CrashLogParser().parse(debugger, crashlog_path, False)
+    except Exception as e:
+        result.PutCString("error: python exception: %s" % e)
+        return
+
+    target = crashlog.create_target()
+    if not target:
+        result.PutCString("error: couldn't create target")
+        return
+
+    ci = debugger.GetCommandInterpreter()
+    if not ci:
+        result.PutCString("error: couldn't get command interpreter")
+        return
+
+    res = lldb.SBCommandReturnObject()
+    ci.HandleCommand('script from lldb.macosx import crashlog_scripted_process', res)
+    if not res.Succeeded():
+        result.PutCString("error: couldn't import crashlog scripted process module")
+        return
+
+    structured_data = lldb.SBStructuredData()
+    structured_data.SetFromJSON(json.dumps({ "crashlog_path" : crashlog_path }))
+    launch_info = lldb.SBLaunchInfo(None)
+    launch_info.SetProcessPluginName("ScriptedProcess")
+    launch_info.SetScriptedProcessClassName("crashlog_scripted_process.CrashLogScriptedProcess")
+    launch_info.SetScriptedProcessDictionary(structured_data)
+    error = lldb.SBError()
+    process = target.Launch(launch_info, error)
 
 def CreateSymbolicateCrashLogOptions(
         command_name,
         description,
         add_interactive_options):
     usage = "usage: %prog [options] <FILE> [FILE ...]"
     option_parser = optparse.OptionParser(
         description=description, prog='crashlog', usage=usage)
option_parser.add_option(
         dest='source_all',
         help='show source for all threads, not just the crashed thread',
         default=False)
     if add_interactive_options:
         option_parser.add_option(
             '-i',
             '--interactive',
             action='store_true',
-            help='parse all crash logs and enter interactive mode',
+            help='parse a crash log and load it in a ScriptedProcess',
             default=False)
+        option_parser.add_option(
+            '-b',
+            '--batch',
+            action='store_true',
+            help='dump symbolicated stackframes without creating a debug session',
+            default=True)
     return option_parser
 
 
 def CrashLogOptionParser():
     description = '''Symbolicate one or more darwin crash log files to provide source file and line information,
 inlined stack frames back to the concrete functions, and disassemble the location of the crash
 for the first frame of the crashed thread.
 If this script is imported into the LLDB command interpreter, a "crashlog" command will be added to the interpreter
if options.debug:
         print('options', options)
         print('args', args)
 
     if options.debug_delay > 0:
         print("Waiting %u seconds for debugger to attach..." % options.debug_delay)
         time.sleep(options.debug_delay)
     error = lldb.SBError()
 
-    if args:
+    def should_run_in_interactive_mode(options, ci):
         if options.interactive:
-            interactive_crashlogs(debugger, options, args)
+            return True
+        elif options.batch:
+            return False
+        # elif ci and ci.IsInteractive():
+        #     return True
         else:
-            for crash_log_file in args:
+            return False
+
+    ci = debugger.GetCommandInterpreter()
+
+    if args:
+            if should_run_in_interactive_mode(options, ci):
+                load_crashlog_in_scripted_process(debugger, crash_log_file)
+            else:
                 crash_log = CrashLogParser().parse(debugger, crash_log_file, options.verbose)
                 SymbolicateCrashLog(crash_log, options)
 
 if __name__ == '__main__':
     # Create a new debugger instance
     debugger = lldb.SBDebugger.Create()
     SymbolicateCrashLogs(debugger, sys.argv[1:])
     lldb.SBDebugger.Destroy(debugger)
 
 def __lldb_init_module(debugger, internal_dict):
     debugger.HandleCommand(
         'command script add -c lldb.macosx.crashlog.Symbolicate crashlog')
     debugger.HandleCommand(
         'command script add -f lldb.macosx.crashlog.save_crashlog save_crashlog')
     print('"crashlog" and "save_crashlog" commands have been installed, use '
           'the "--help" options on these commands for detailed help.')

lldb/examples/python/scripted_process/crashlog_scripted_process.py

+import os,json,struct,signal
+
+from typing import Any, Dict
+
+import lldb
+from lldb.plugins.scripted_process import ScriptedProcess
+from lldb.plugins.scripted_process import ScriptedThread
+
+from lldb.macosx.crashlog import CrashLog,CrashLogParser
+
+class CrashLogScriptedProcess(ScriptedProcess):
+    def parse_crashlog(self):
+        try:
+            crash_log = CrashLogParser().parse(self.dbg, self.crashlog_path, False)
+        except Exception as e:
+            return
+
+        self.pid = crash_log.process_id
+        self.crashed_thread_idx = crash_log.crashed_thread_idx
+        self.loaded_images = []
+
+        for thread in crash_log.threads:
+            if thread.did_crash():
+                for ident in thread.idents:
+                    images = crash_log.find_images_with_identifier(ident)
+                    if images:
+                        for image in images:
+                            #TODO: Add to self.loaded_images and load images in lldb
+                            err = image.add_module(self.target)
+                            if err:
+                                print(err)
+                            else:
+                                self.loaded_images.append(image)
+            self.threads[thread.index] = CrashLogScriptedThread(self, None, thread)
+
+    def __init__(self, target: lldb.SBTarget, args : lldb.SBStructuredData):
+        super().__init__(target, args)
+
+        if not self.target or not self.target.IsValid():
+            return
+
+        self.crashlog_path = None
+
+        crashlog_path = args.GetValueForKey("crashlog_path")
+        if crashlog_path and crashlog_path.IsValid():
+            if crashlog_path.GetType() == lldb.eStructuredDataTypeString:
+                self.crashlog_path = crashlog_path.GetStringValue(4096)
+
+        if not self.crashlog_path:
+            return
+
+        self.pid = super().get_process_id()
+        self.crashed_thread_idx = 0
+        self.parse_crashlog()
+
+    def get_memory_region_containing_address(self, addr: int) -> lldb.SBMemoryRegionInfo:
+        return None
+
+    def get_thread_with_id(self, tid: int):
+        return {}
+
+    def get_registers_for_thread(self, tid: int):
+        return {}
+
+    def read_memory_at_address(self, addr: int, size: int) -> lldb.SBData:
+        # NOTE: CrashLogs don't contain any memory.
+        return lldb.SBData()
+
+    def get_loaded_images(self):
+        # TODO: Iterate over corefile_target modules and build a data structure
+        # from it.
+        return self.loaded_images
+
+    def get_process_id(self) -> int:
+        return self.pid
+
+    def should_stop(self) -> bool:
+        return True
+
+    def is_alive(self) -> bool:
+        return True
+
+    def get_scripted_thread_plugin(self):
+        return CrashLogScriptedThread.__module__ + "." + CrashLogScriptedThread.__name__
+
+class CrashLogScriptedThread(ScriptedThread):
+    def create_register_ctx(self):
+        if not self.has_crashed:
+            return dict.fromkeys([*map(lambda reg: reg['name'], self.register_info['registers'])] , 0)
+
+        if not self.backing_thread or not len(self.backing_thread.registers):
+            return dict.fromkeys([*map(lambda reg: reg['name'], self.register_info['registers'])] , 0)
+
+        for reg in self.register_info['registers']:
+            reg_name = reg['name']
+            if reg_name in self.backing_thread.registers:
+                self.register_ctx[reg_name] = self.backing_thread.registers[reg_name]
+            else:
+                self.register_ctx[reg_name] = 0
+
+        return self.register_ctx
+
+    def create_stackframes(self):
+        if not self.has_crashed:
+            return None
+
+        if not self.backing_thread or not len(self.backing_thread.frames):
+            return None
+
+        for frame in self.backing_thread.frames:
+            sym_addr = lldb.SBAddress()
+            sym_addr.SetLoadAddress(frame.pc, self.target)
+            if not sym_addr.IsValid():
+                continue
+            self.frames.append({"idx": frame.index, "pc": frame.pc})
+
+        return self.frames
+
+    def __init__(self, process, args, crashlog_thread):
+        super().__init__(process, args)
+
+        self.backing_thread = crashlog_thread
+        self.idx = self.backing_thread.index
+        self.has_crashed = (self.scripted_process.crashed_thread_idx == self.idx)
+        self.create_stackframes()
+
+    def get_thread_id(self) -> int:
+        return self.idx
+
+    def get_name(self) -> str:
+        return CrashLogScriptedThread.__name__ + ".thread-" + str(self.idx)
+
+    def get_state(self):
+        if not self.has_crashed:
+            return lldb.eStateStopped
+        return lldb.eStateCrashed
+
+    def get_stop_reason(self) -> Dict[str, Any]:
+        if not self.has_crashed:
+            return { "type": lldb.eStopReasonNone, "data": {  }}
+        # TODO: Investigate what stop reason should be reported when crashed
+        return { "type": lldb.eStopReasonException, "data": { "desc": "EXC_BAD_ACCESS" }}
+
+    def get_register_context(self) -> str:
+        if not self.register_ctx:
+            self.register_ctx = self.create_register_ctx()
+
+        return struct.pack("{}Q".format(len(self.register_ctx)), *self.register_ctx.values())

lldb/source/Plugins/Process/scripted/ScriptedProcess.cpp

return ScriptedInterface::ErrorWithMessage<bool>(
         llvm::Twine("ScriptInterpreter language (" +
                     llvm::Twine(m_interpreter->LanguageToString(language)) +
                     llvm::Twine(") not supported."))
             .str(),
         error);
 
   StructuredData::DictionarySP thread_info_sp = GetInterface().GetThreadsInfo();
 
+  // FIXME: Need to sort the dictionary otherwise the thread ids won't match the
+  // thread indices.
+
   if (!thread_info_sp)
     return ScriptedInterface::ErrorWithMessage<bool>(
         LLVM_PRETTY_FUNCTION,
         "Couldn't fetch thread list from Scripted Process.", error);
 
   auto create_scripted_thread =
       [this, &old_thread_list, &error,
        &new_thread_list](ConstString key, StructuredData::Object *val) -> bool {

lldb/test/Shell/ScriptInterpreter/Python/Crashlog/Inputs/scripted_crashlog.ips

+{"app_name":"scripted_crashlog_json.test.tmp.out","timestamp":"2022-02-14 16:30:31.00 -0800","app_version":"","slice_uuid":"b928ee77-9429-334f-ac88-41440bb3d4c7","build_version":"","platform":1,"share_with_app_devs":0,"is_first_party":1,"bug_type":"309","os_version":"macOS 12.3","incident_id":"E57CADE7-DC44-45CE-8D16-18EBC4406B97","name":"scripted_crashlog_json.test.tmp.out"}
+{
+  "uptime" : 260000,
+  "procLaunch" : "2022-02-14 16:30:31.8048 -0800",
+  "procRole" : "Unspecified",
+  "version" : 2,
+  "userID" : 501,
+  "deployVersion" : 210,
+  "modelCode" : "MacBookPro18,2",
+  "procStartAbsTime" : 6478056069413,
+  "coalitionID" : 22196,
+  "osVersion" : {
+    "train" : "macOS 12.3",
+    "build" : "",
+    "releaseType" : ""
+  },
+  "captureTime" : "2022-02-14 16:30:31.8096 -0800",
+  "incident" : "E57CADE7-DC44-45CE-8D16-18EBC4406B97",
+  "bug_type" : "309",
+  "pid" : 92190,
+  "procExitAbsTime" : 6478056175721,
+  "translated" : false,
+  "cpuType" : "ARM-64",
+  "procName" : "scripted_crashlog_json.test.tmp.out",
+  "procPath" : "\/Users\/USER\/*\/scripted_crashlog_json.test.tmp.out",
+  "parentProc" : "zsh",
+  "parentPid" : 82132,
+  "coalitionName" : "com.apple.Terminal",
+  "crashReporterKey" : "CDC11418-EDBF-2A49-0D83-8B441A5004B0",
+  "responsiblePid" : 76395,
+  "responsibleProc" : "Terminal",
+  "wakeTime" : 14889,
+  "sleepWakeUUID" : "BCA947AE-2F0A-44C7-8445-FEDFFA236CD0",
+  "sip" : "enabled",
+  "vmRegionInfo" : "0 is not in any region.  Bytes before following region: 4372692992\n      REGION TYPE                    START - END         [ VSIZE] PRT\/MAX SHRMOD  REGION DETAIL\n      UNUSED SPACE AT START\n--->  \n      __TEXT                      104a20000-104a24000    [   16K] r-x\/r-x SM=COW  ....test.tmp.out",
+  "isCorpse" : 1,
+  "exception" : {"codes":"0x0000000000000001, 0x0000000000000000","rawCodes":[1,0],"type":"EXC_BAD_ACCESS","signal":"SIGSEGV","subtype":"KERN_INVALID_ADDRESS at 0x0000000000000000"},
+  "termination" : {"flags":0,"code":11,"namespace":"SIGNAL","indicator":"Segmentation fault: 11","byProc":"exc handler","byPid":92190},
+  "vmregioninfo" : "0 is not in any region.  Bytes before following region: 4372692992\n      REGION TYPE                    START - END         [ VSIZE] PRT\/MAX SHRMOD  REGION DETAIL\n      UNUSED SPACE AT START\n--->  \n      __TEXT                      104a20000-104a24000    [   16K] r-x\/r-x SM=COW  ....test.tmp.out",
+  "extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":156,"task_for_pid":28},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},
+  "faultingThread" : 0,
+  "threads" : [{"triggered":true,"id":4567339,"threadState":{"x":[{"value":1},{"value":6094187136},{"value":6094187152},{"value":6094187720},{"value":0},{"value":0},{"value":0},{"value":0},{"value":1},{"value":0},{"value":0},{"value":2},{"value":2},{"value":0},{"value":80},{"value":0},{"value":13118353544},{"value":7701436843874442528},{"value":0},{"value":4373676128},{"sourceLine":8,"value":4372709256,"sourceFile":"test.c","symbol":"main","symbolLocation":0},{"value":4373332080,"symbolLocation":0,"symbol":"dyld4::sConfigBuffer"},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0}],"flavor":"ARM_THREAD_STATE64","lr":{"value":4372709248},"cpsr":{"value":1610616832},"fp":{"value":6094186736},"sp":{"value":6094186720},"esr":{"value":2449473606,"description":"(Data Abort) byte write Translation fault"},"pc":{"value":4372709224,"matchesCrashFrame":1},"far":{"value":0}},"queue":"com.apple.main-thread","frames":[{"imageOffset":16232,"sourceLine":3,"sourceFile":"test.c","symbol":"foo","imageIndex":0,"symbolLocation":16},{"imageOffset":16256,"sourceLine":6,"sourceFile":"test.c","symbol":"bar","imageIndex":0,"symbolLocation":12},{"imageOffset":16288,"sourceLine":8,"sourceFile":"test.c","symbol":"main","imageIndex":0,"symbolLocation":24},{"imageOffset":20620,"symbol":"start","symbolLocation":520,"imageIndex":1}]}],
+  "usedImages" : [
+  {
+    "source" : "P",
+    "arch" : "arm64",
+    "base" : 4372692992,
+    "size" : 16384,
+    "uuid" : "b928ee77-9429-334f-ac88-41440bb3d4c7",
+    "path" : "\/Users\/USER\/*\/scripted_crashlog_json.test.tmp.out",
+    "name" : "scripted_crashlog_json.test.tmp.out"
+  },
+  {
+    "source" : "P",
+    "arch" : "arm64e",
+    "base" : 4372938752,
+    "size" : 393216,
+    "uuid" : "41293cda-474b-3700-924e-6ba0f7698eac",
+    "path" : "\/usr\/lib\/dyld",
+    "name" : "dyld"
+  }
+],
+  "sharedCache" : {
+  "base" : 6924156928,
+  "size" : 3151052800,
+  "uuid" : "2ff78c31-e522-3e4a-a414-568e926f7274"
+},
+  "vmSummary" : "ReadOnly portion of Libraries: Total=589.5M resident=0K(0%) swapped_out_or_unallocated=589.5M(100%)\nWritable regions: Total=529.1M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=529.1M(100%)\n\n                                VIRTUAL   REGION \nREGION TYPE                        SIZE    COUNT (non-coalesced) \n===========                     =======  ======= \nKernel Alloc Once                   32K        1 \nMALLOC                           137.2M       11 \nMALLOC guard page                   96K        5 \nMALLOC_NANO (reserved)           384.0M        1         reserved VM address space (unallocated)\nSTACK GUARD                       56.0M        1 \nStack                             8176K        1 \n__AUTH                              46K       11 \n__AUTH_CONST                        67K       38 \n__DATA                             173K       36 \n__DATA_CONST                       242K       39 \n__DATA_DIRTY                        73K       21 \n__LINKEDIT                       584.9M        3 \n__OBJC_CONST                        10K        5 \n__OBJC_RO                         82.9M        1 \n__OBJC_RW                         3168K        1 \n__TEXT                            4696K       43 \ndyld private memory               1024K        1 \nshared memory                       48K        2 \n===========                     =======  ======= \nTOTAL                              1.2G      221 \nTOTAL, minus reserved VM space   878.5M      221 \n",
+  "legacyInfo" : {
+  "threadTriggered" : {
+    "queue" : "com.apple.main-thread"
+  }
+},
+  "trialInfo" : {  }
+}

lldb/test/Shell/ScriptInterpreter/Python/Crashlog/scripted_crashlog_json.test

+# RUN: %clang_host -g %S/Inputs/test.c -o %t.out
+
+# RUN: cp %S/Inputs/scripted_crashlog.ips %t.crash
+# RUN: %python %S/patch-crashlog.py --binary %t.out --crashlog %t.crash --offsets '{"main":20, "bar":9, "foo":16}' --json
+# RUN: %lldb %t.out -o 'command script import lldb.macosx.crashlog' -o 'crashlog -i %t.crash' -o 'process status' 2>&1 | FileCheck %s
+
+# CHECK: "crashlog" {{.*}} commands have been installed, use the "--help" options on these commands
+# CHECK: Process 92190 stopped
+# CHECK: * thread #1, name = 'CrashLogScriptedThread.thread-0', stop reason = EXC_BAD_ACCESS
+# CHECK: frame #0: 0x0000000104a23f68 scripted_crashlog_json.test.tmp.out`foo at test.c:3:6 [artificial]