1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
|
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.CompilerServices;
using System.Reflection;
using System.Web.Script.Serialization;
using Diag = System.Diagnostics;
using System.Runtime.InteropServices;
class C
{
class CrasherClass
{
public struct Crasher {
public string Name {get;}
public Action Action {get; }
public Action<object> Validator {get; }
public Crasher (string name, Action action, Action<object> validator = null)
{
Name = name;
Action = action;
Validator = validator;
}
}
public class ValidationException : Exception {
public ValidationException () : base () {}
public ValidationException (string msg) : base (msg) {}
public ValidationException (string msg, Exception inner) : base (msg, inner) {}
}
public static List<Crasher> Crashers;
public static int StresserIndex;
static CrasherClass ()
{
Crashers = new List<Crasher> ();
// Basic functionality
Crashers.Add(new Crasher ("MerpCrashManaged", MerpCrashManaged));
// Run this test for stress tests
//
// I've ran a burn-in with all of them of
// 1,000 - 10,000 runs already.
//
// Feel free to change by moving this line.
StresserIndex = Crashers.Count - 1;
Crashers.Add(new Crasher ("MerpCrashMalloc", MerpCrashMalloc));
Crashers.Add(new Crasher ("MerpCrashFailFast", MerpCrashFailFast, ValidateFailFastMsg));
Crashers.Add(new Crasher ("MerpCrashNullFp", MerpCrashNullFp));
Crashers.Add(new Crasher ("MerpCrashExceptionHook", MerpCrashUnhandledExceptionHook));
// Specific Edge Cases
Crashers.Add(new Crasher ("MerpCrashDladdr", MerpCrashDladdr));
Crashers.Add(new Crasher ("MerpCrashSnprintf", MerpCrashSnprintf));
Crashers.Add(new Crasher ("MerpCrashDomainUnload", MerpCrashDomainUnload));
Crashers.Add(new Crasher ("MerpCrashUnbalancedGCSafe", MerpCrashUnbalancedGCSafe));
}
public static void
MerpCrashManaged ()
{
unsafe { Console.WriteLine("{0}", *(int*) -1); }
}
const string failfastMsg = "abcd efgh";
public static void
MerpCrashFailFast ()
{
Environment.FailFast (failfastMsg);
}
public static void ValidateFailFastMsg (object json)
{
string s = jsonGetKeys (json, "payload", "failfast_message") as string;
if (s != failfastMsg)
throw new ValidationException (String.Format ("incorrect fail fast message (expected: {0}, got: {1})", failfastMsg, s));
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashSnprintf ();
// This test tries to test the writer's reentrancy
public static void
MerpCrashSnprintf ()
{
mono_test_MerpCrashSnprintf ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashDladdr ();
public static void
MerpCrashDladdr ()
{
mono_test_MerpCrashDladdr ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashMalloc ();
public static void
MerpCrashMalloc ()
{
mono_test_MerpCrashMalloc ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashLoaderLock ();
public static void
MerpCrashLoaderLock ()
{
mono_test_MerpCrashLoaderLock ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashDomainUnload ();
public static void
MerpCrashDomainUnload ()
{
mono_test_MerpCrashDomainUnload ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashUnbalancedGCSafe ();
public static void
MerpCrashUnbalancedGCSafe ()
{
mono_test_MerpCrashUnbalancedGCSafe ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashNullFp ();
public static void
MerpCrashNullFp ()
{
mono_test_MerpCrashNullFp ();
}
[DllImport("libtest")]
public static extern void mono_test_MerpCrashUnhandledExceptionHook ();
public static void
MerpCrashUnhandledExceptionHook ()
{
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(HandleException);
throw new Exception ("This is Unhandled");
}
public static void HandleException (object sender, UnhandledExceptionEventArgs e)
{
Console.WriteLine ("And now to crash inside the hook");
mono_test_MerpCrashUnhandledExceptionHook ();
}
private static object jsonGetKey (object o, string key) => (o as Dictionary<string,object>)[key];
private static object jsonGetKeys (object o, params string[] keys) {
try {
foreach (var key in keys) {
o = jsonGetKey (o, key);
}
return o;
} catch (KeyNotFoundException e) {
throw new ValidationException (String.Format ("{0}, key not found, looking for key path [{1}]", e.ToString(), String.Join (", ", keys)));
}
}
}
static string configDir = "./merp-crash-test/";
public static void
CrashWithMerp (int testNum)
{
SetupCrash (configDir);
CrasherClass.Crashers [Convert.ToInt32 (testNum)].Action ();
}
public static string env = Environment.GetEnvironmentVariable ("MONO_PATH");
public static string this_assembly_path = Path.GetDirectoryName (Assembly.GetExecutingAssembly ().Location);
public static void
SetupCrash (string configDir)
{
var monoType = Type.GetType ("Mono.Runtime", false);
var m = monoType.GetMethod("EnableMicrosoftTelemetry", BindingFlags.NonPublic | BindingFlags.Static);
// This leads to open -a /bin/cat, which errors out, but errors
// in invoking merp are only logged errors, not fatal assertions.
var merpGUIPath = "/bin/cat";
var appBundleId = "com.xam.Minimal";
var appSignature = "Test.Xam.Minimal";
var appVersion = "123456";
var eventType = "AppleAppCrash";
var appPath = "/where/mono/lives";
var m_params = new object[] { appBundleId, appSignature, appVersion, merpGUIPath, eventType, appPath, configDir };
m.Invoke(null, m_params);
DumpLogSet ();
}
public static void
TestValidate (string configDir, bool silent, Action<object> validator = null)
{
DumpLogCheck ();
var xmlFilePath = String.Format("{0}CustomLogsMetadata.xml", configDir);
var paramsFilePath = String.Format("{0}MERP.uploadparams.txt", configDir);
var crashFilePath = String.Format("{0}lastcrashlog.txt", configDir);
// Fixme: Maybe parse these json files rather than
// just checking they exist
var xmlFileExists = File.Exists (xmlFilePath);
var paramsFileExists = File.Exists (paramsFilePath);
var crashFileExists = File.Exists (crashFilePath);
if (xmlFileExists) {
var text = File.ReadAllText (xmlFilePath);
if (!silent)
Console.WriteLine ("Xml file {0}", text);
File.Delete (xmlFilePath);
} else {
Console.WriteLine ("Xml file {0} missing", xmlFilePath);
}
if (paramsFileExists) {
var text = File.ReadAllText (paramsFilePath);
if (!silent)
Console.WriteLine ("Params file {0}", text);
File.Delete (paramsFilePath);
} else {
Console.WriteLine ("Params file {0} missing", paramsFilePath);
}
if (crashFileExists) {
var crashFile = File.ReadAllText (crashFilePath);
File.Delete (crashFilePath);
var checker = new JavaScriptSerializer ();
// Throws if invalid json
if (!silent)
Console.WriteLine("Validating: {0}", crashFile);
try {
var obj = checker.DeserializeObject (crashFile);
if (validator is object)
validator (obj);
} catch (CrasherClass.ValidationException e) {
throw new Exception (String.Format ("Validation failed '{0}', json: {1}", e.Message, crashFile));
} catch (Exception e) {
throw new Exception (String.Format ("Invalid json: {0}", crashFile));
}
File.Delete (crashFilePath);
// Assert it has the required merp fields
} else {
Console.WriteLine ("Crash file {0} missing", crashFilePath);
}
if (!xmlFileExists)
throw new Exception (String.Format ("Did not produce {0}", xmlFilePath));
if (!paramsFileExists)
throw new Exception (String.Format ("Did not produce {0}", paramsFilePath));
if (!crashFileExists)
throw new Exception (String.Format ("Did not produce {0}", crashFilePath));
}
public static void
Cleanup (string configDir)
{
Directory.Delete (configDir, true);
}
static void DumpLogSet ()
{
var monoType = Type.GetType ("Mono.Runtime", false);
var convert = monoType.GetMethod("EnableCrashReportLog", BindingFlags.NonPublic | BindingFlags.Static);
convert.Invoke(null, new object[] { "./" });
}
static void DumpLogUnset ()
{
var monoType = Type.GetType ("Mono.Runtime", false);
var convert = monoType.GetMethod("EnableCrashReportLog", BindingFlags.NonPublic | BindingFlags.Static);
convert.Invoke(null, new object[] { null });
}
static void DumpLogCheck ()
{
var monoType = Type.GetType ("Mono.Runtime", false);
var convert = monoType.GetMethod("CheckCrashReportLog", BindingFlags.NonPublic | BindingFlags.Static);
var result = (int) convert.Invoke(null, new object[] { "./", true });
// Value of enum
string [] levels = new string [] { "None", "Setup", "SuspendHandshake", "UnmanagedStacks", "ManagedStacks", "StateWriter", "StateWriterDone", "MerpWriter", "MerpInvoke", "Cleanup", "Done", "DoubleFault" };
if ("MerpInvoke" == levels [result]) {
Console.WriteLine ("Merp invoke command failed, expected failure?");
} else if ("Done" != levels [result]) {
throw new Exception (String.Format ("Crash level not done, failed in stage: {0}", levels [result]));
}
}
public static void
SpawnCrashingRuntime (string runtime, int testNum, bool silent)
{
var asm = "merp-crash-test.exe";
var pi = new Diag.ProcessStartInfo ();
pi.UseShellExecute = false;
pi.FileName = runtime;
pi.Arguments = String.Format ("{0} {1}", asm, testNum);;
pi.Environment ["MONO_PATH"] = env;
if (!silent) {
Console.WriteLine ("Running {0}", CrasherClass.Crashers [testNum].Name);
Console.WriteLine ("MONO_PATH={0} {1} {2} {3}", env, runtime, asm, testNum);
}
if (Directory.Exists (configDir)) {
Console.WriteLine ("Cleaning up left over configDir {0}", configDir);
Cleanup (configDir);
}
Directory.CreateDirectory (configDir);
try {
var process = Diag.Process.Start (pi);
process.WaitForExit ();
TestValidate (configDir, silent, CrasherClass.Crashers [testNum].Validator);
} finally {
Cleanup (configDir);
}
}
public static int Main (string [] args)
{
if (args.Length == 0) {
string processExe = Diag.Process.GetCurrentProcess ().MainModule.FileName;
if (processExe == null)
throw new ArgumentException ("Couldn't get name of running file");
else if (string.IsNullOrEmpty (processExe))
throw new ArgumentException ("Couldn't find mono runtime.");
else if (!Path.GetFileName (processExe).StartsWith ("mono"))
throw new ArgumentException (String.Format("Running native app {0} isn't 'mono'"));
var failures = new Exception [CrasherClass.Crashers.Count];
int failure_count = 0;
for (int i=0; i < CrasherClass.Crashers.Count; i++) {
try {
SpawnCrashingRuntime (processExe, i, false);
} catch (Exception e) {
failures [i] = e;
if (e.InnerException != null)
failures [i] = e.InnerException;
failure_count++;
}
}
Console.WriteLine ("\n\n##################");
Console.WriteLine ("Merp Test Results:");
Console.WriteLine ("##################\n\n");
if (failure_count > 0) {
for (int i=0; i < CrasherClass.Crashers.Count; i++) {
if (failures [i] != null) {
Console.WriteLine ("Crash reporter failed test {0}", CrasherClass.Crashers [i].Name);
Console.WriteLine ("Cause: {0}\n{1}\n", failures [i].Message, failures [i].StackTrace);
}
}
}
if (failure_count > 0)
return 1;
Console.WriteLine ("\n\n##################");
Console.WriteLine ("Merp Stress Test:");
Console.WriteLine ("##################\n\n");
Console.WriteLine ("Starting crash stress test\n");
int iter = 0;
for (iter=0; iter < 20; iter++) {
Console.WriteLine ("\n#############################################");
Console.WriteLine ("\tMerp Stress Test Iteration {0}", iter);
Console.WriteLine ("#############################################\n");
try {
SpawnCrashingRuntime (processExe, CrasherClass.StresserIndex, true);
} catch (Exception e) {
Console.WriteLine ("Stress test caught failure. Shutting down after {1} iterations.\n {0} \n\n", e.InnerException, iter);
throw;
}
}
Console.WriteLine ("Ending crash stress test. No failures caught.\n");
return 0;
} else {
CrashWithMerp (Convert.ToInt32 (args [0]));
return 0;
}
}
}
|