parsed_options.cc revision 9c290012b7f505ae1943ab87236f775b97a46e2d 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "parsed_options.h"
18
19#ifdef HAVE_ANDROID_OS
20#include "cutils/properties.h"
21#endif
22
23#include "base/stringpiece.h"
24#include "debugger.h"
25#include "gc/heap.h"
26#include "monitor.h"
27#include "runtime.h"
28#include "trace.h"
29#include "utils.h"
30
31namespace art {
32
33ParsedOptions* ParsedOptions::Create(const RuntimeOptions& options, bool ignore_unrecognized) {
34  std::unique_ptr<ParsedOptions> parsed(new ParsedOptions());
35  if (parsed->Parse(options, ignore_unrecognized)) {
36    return parsed.release();
37  }
38  return nullptr;
39}
40
41// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
42// memory sizes.  [kK] indicates kilobytes, [mM] megabytes, and
43// [gG] gigabytes.
44//
45// "s" should point just past the "-Xm?" part of the string.
46// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
47// of 1024.
48//
49// The spec says the -Xmx and -Xms options must be multiples of 1024.  It
50// doesn't say anything about -Xss.
51//
52// Returns 0 (a useless size) if "s" is malformed or specifies a low or
53// non-evenly-divisible value.
54//
55size_t ParseMemoryOption(const char* s, size_t div) {
56  // strtoul accepts a leading [+-], which we don't want,
57  // so make sure our string starts with a decimal digit.
58  if (isdigit(*s)) {
59    char* s2;
60    size_t val = strtoul(s, &s2, 10);
61    if (s2 != s) {
62      // s2 should be pointing just after the number.
63      // If this is the end of the string, the user
64      // has specified a number of bytes.  Otherwise,
65      // there should be exactly one more character
66      // that specifies a multiplier.
67      if (*s2 != '\0') {
68        // The remainder of the string is either a single multiplier
69        // character, or nothing to indicate that the value is in
70        // bytes.
71        char c = *s2++;
72        if (*s2 == '\0') {
73          size_t mul;
74          if (c == '\0') {
75            mul = 1;
76          } else if (c == 'k' || c == 'K') {
77            mul = KB;
78          } else if (c == 'm' || c == 'M') {
79            mul = MB;
80          } else if (c == 'g' || c == 'G') {
81            mul = GB;
82          } else {
83            // Unknown multiplier character.
84            return 0;
85          }
86
87          if (val <= std::numeric_limits<size_t>::max() / mul) {
88            val *= mul;
89          } else {
90            // Clamp to a multiple of 1024.
91            val = std::numeric_limits<size_t>::max() & ~(1024-1);
92          }
93        } else {
94          // There's more than one character after the numeric part.
95          return 0;
96        }
97      }
98      // The man page says that a -Xm value must be a multiple of 1024.
99      if (val % div == 0) {
100        return val;
101      }
102    }
103  }
104  return 0;
105}
106
107static gc::CollectorType ParseCollectorType(const std::string& option) {
108  if (option == "MS" || option == "nonconcurrent") {
109    return gc::kCollectorTypeMS;
110  } else if (option == "CMS" || option == "concurrent") {
111    return gc::kCollectorTypeCMS;
112  } else if (option == "SS") {
113    return gc::kCollectorTypeSS;
114  } else if (option == "GSS") {
115    return gc::kCollectorTypeGSS;
116  } else if (option == "CC") {
117    return gc::kCollectorTypeCC;
118  } else if (option == "MC") {
119    return gc::kCollectorTypeMC;
120  } else {
121    return gc::kCollectorTypeNone;
122  }
123}
124
125bool ParsedOptions::ParseXGcOption(const std::string& option) {
126  std::vector<std::string> gc_options;
127  Split(option.substr(strlen("-Xgc:")), ',', gc_options);
128  for (const std::string& gc_option : gc_options) {
129    gc::CollectorType collector_type = ParseCollectorType(gc_option);
130    if (collector_type != gc::kCollectorTypeNone) {
131      collector_type_ = collector_type;
132    } else if (gc_option == "preverify") {
133      verify_pre_gc_heap_ = true;
134    } else if (gc_option == "nopreverify") {
135      verify_pre_gc_heap_ = false;
136    }  else if (gc_option == "presweepingverify") {
137      verify_pre_sweeping_heap_ = true;
138    } else if (gc_option == "nopresweepingverify") {
139      verify_pre_sweeping_heap_ = false;
140    } else if (gc_option == "postverify") {
141      verify_post_gc_heap_ = true;
142    } else if (gc_option == "nopostverify") {
143      verify_post_gc_heap_ = false;
144    } else if (gc_option == "preverify_rosalloc") {
145      verify_pre_gc_rosalloc_ = true;
146    } else if (gc_option == "nopreverify_rosalloc") {
147      verify_pre_gc_rosalloc_ = false;
148    } else if (gc_option == "presweepingverify_rosalloc") {
149      verify_pre_sweeping_rosalloc_ = true;
150    } else if (gc_option == "nopresweepingverify_rosalloc") {
151      verify_pre_sweeping_rosalloc_ = false;
152    } else if (gc_option == "postverify_rosalloc") {
153      verify_post_gc_rosalloc_ = true;
154    } else if (gc_option == "nopostverify_rosalloc") {
155      verify_post_gc_rosalloc_ = false;
156    } else if ((gc_option == "precise") ||
157               (gc_option == "noprecise") ||
158               (gc_option == "verifycardtable") ||
159               (gc_option == "noverifycardtable")) {
160      // Ignored for backwards compatibility.
161    } else {
162      Usage("Unknown -Xgc option %s\n", gc_option.c_str());
163      return false;
164    }
165  }
166  return true;
167}
168
169bool ParsedOptions::Parse(const RuntimeOptions& options, bool ignore_unrecognized) {
170  const char* boot_class_path_string = getenv("BOOTCLASSPATH");
171  if (boot_class_path_string != NULL) {
172    boot_class_path_string_ = boot_class_path_string;
173  }
174  const char* class_path_string = getenv("CLASSPATH");
175  if (class_path_string != NULL) {
176    class_path_string_ = class_path_string;
177  }
178  // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
179  check_jni_ = kIsDebugBuild;
180
181  heap_initial_size_ = gc::Heap::kDefaultInitialSize;
182  heap_maximum_size_ = gc::Heap::kDefaultMaximumSize;
183  heap_min_free_ = gc::Heap::kDefaultMinFree;
184  heap_max_free_ = gc::Heap::kDefaultMaxFree;
185  heap_target_utilization_ = gc::Heap::kDefaultTargetUtilization;
186  foreground_heap_growth_multiplier_ = gc::Heap::kDefaultHeapGrowthMultiplier;
187  heap_growth_limit_ = 0;  // 0 means no growth limit .
188  // Default to number of processors minus one since the main GC thread also does work.
189  parallel_gc_threads_ = sysconf(_SC_NPROCESSORS_CONF) - 1;
190  // Only the main GC thread, no workers.
191  conc_gc_threads_ = 0;
192  // The default GC type is set in makefiles.
193#if ART_DEFAULT_GC_TYPE_IS_CMS
194  collector_type_ = gc::kCollectorTypeCMS;
195#elif ART_DEFAULT_GC_TYPE_IS_SS
196  collector_type_ = gc::kCollectorTypeSS;
197#elif ART_DEFAULT_GC_TYPE_IS_GSS
198  collector_type_ = gc::kCollectorTypeGSS;
199#else
200#error "ART default GC type must be set"
201#endif
202  // If we are using homogeneous space compaction then default background compaction to off since
203  // homogeneous space compactions when we transition to not jank perceptible.
204  use_homogeneous_space_compaction_for_oom_ = false;
205  // If background_collector_type_ is kCollectorTypeNone, it defaults to the collector_type_ after
206  // parsing options. If you set this to kCollectorTypeHSpaceCompact then we will do an hspace
207  // compaction when we transition to background instead of a normal collector transition.
208#ifdef ART_USE_HSPACE_COMPACT
209  background_collector_type_ = gc::kCollectorTypeHomogeneousSpaceCompact;
210#else
211  background_collector_type_ = gc::kCollectorTypeSS;
212#endif
213  stack_size_ = 0;  // 0 means default.
214  max_spins_before_thin_lock_inflation_ = Monitor::kDefaultMaxSpinsBeforeThinLockInflation;
215  low_memory_mode_ = false;
216  use_tlab_ = false;
217  min_interval_homogeneous_space_compaction_by_oom_ = MsToNs(100 * 1000);  // 100s.
218  verify_pre_gc_heap_ = false;
219  // Pre sweeping is the one that usually fails if the GC corrupted the heap.
220  verify_pre_sweeping_heap_ = kIsDebugBuild;
221  verify_post_gc_heap_ = false;
222  verify_pre_gc_rosalloc_ = kIsDebugBuild;
223  verify_pre_sweeping_rosalloc_ = false;
224  verify_post_gc_rosalloc_ = false;
225
226  compiler_callbacks_ = nullptr;
227  is_zygote_ = false;
228  must_relocate_ = kDefaultMustRelocate;
229  dex2oat_enabled_ = true;
230  if (kPoisonHeapReferences) {
231    // kPoisonHeapReferences currently works only with the interpreter only.
232    // TODO: make it work with the compiler.
233    interpreter_only_ = true;
234  } else {
235    interpreter_only_ = false;
236  }
237  is_explicit_gc_disabled_ = false;
238
239  long_pause_log_threshold_ = gc::Heap::kDefaultLongPauseLogThreshold;
240  long_gc_log_threshold_ = gc::Heap::kDefaultLongGCLogThreshold;
241  dump_gc_performance_on_shutdown_ = false;
242  ignore_max_footprint_ = false;
243
244  lock_profiling_threshold_ = 0;
245  hook_is_sensitive_thread_ = NULL;
246
247  hook_vfprintf_ = vfprintf;
248  hook_exit_ = exit;
249  hook_abort_ = NULL;  // We don't call abort(3) by default; see Runtime::Abort.
250
251//  gLogVerbosity.class_linker = true;  // TODO: don't check this in!
252//  gLogVerbosity.compiler = true;  // TODO: don't check this in!
253//  gLogVerbosity.gc = true;  // TODO: don't check this in!
254//  gLogVerbosity.heap = true;  // TODO: don't check this in!
255//  gLogVerbosity.jdwp = true;  // TODO: don't check this in!
256//  gLogVerbosity.jni = true;  // TODO: don't check this in!
257//  gLogVerbosity.monitor = true;  // TODO: don't check this in!
258//  gLogVerbosity.profiler = true;  // TODO: don't check this in!
259//  gLogVerbosity.signals = true;  // TODO: don't check this in!
260//  gLogVerbosity.startup = true;  // TODO: don't check this in!
261//  gLogVerbosity.third_party_jni = true;  // TODO: don't check this in!
262//  gLogVerbosity.threads = true;  // TODO: don't check this in!
263//  gLogVerbosity.verifier = true;  // TODO: don't check this in!
264
265  method_trace_ = false;
266  method_trace_file_ = "/data/method-trace-file.bin";
267  method_trace_file_size_ = 10 * MB;
268
269  profile_clock_source_ = kDefaultTraceClockSource;
270
271  verify_ = true;
272  image_isa_ = kRuntimeISA;
273
274  for (size_t i = 0; i < options.size(); ++i) {
275    if (true && options[0].first == "-Xzygote") {
276      LOG(INFO) << "option[" << i << "]=" << options[i].first;
277    }
278  }
279  for (size_t i = 0; i < options.size(); ++i) {
280    const std::string option(options[i].first);
281    if (StartsWith(option, "-help")) {
282      Usage(nullptr);
283      return false;
284    } else if (StartsWith(option, "-showversion")) {
285      UsageMessage(stdout, "ART version %s\n", Runtime::GetVersion());
286      Exit(0);
287    } else if (StartsWith(option, "-Xbootclasspath:")) {
288      boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
289      LOG(INFO) << "setting boot class path to " << boot_class_path_string_;
290    } else if (option == "-classpath" || option == "-cp") {
291      // TODO: support -Djava.class.path
292      i++;
293      if (i == options.size()) {
294        Usage("Missing required class path value for %s\n", option.c_str());
295        return false;
296      }
297      const StringPiece& value = options[i].first;
298      class_path_string_ = value.data();
299    } else if (option == "bootclasspath") {
300      boot_class_path_
301          = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
302    } else if (StartsWith(option, "-Ximage:")) {
303      if (!ParseStringAfterChar(option, ':', &image_)) {
304        return false;
305      }
306    } else if (StartsWith(option, "-Xcheck:jni")) {
307      check_jni_ = true;
308    } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
309      std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
310      // TODO: move parsing logic out of Dbg
311      if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
312        if (tail != "help") {
313          UsageMessage(stderr, "Failed to parse JDWP option %s\n", tail.c_str());
314        }
315        Usage("Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
316              "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n\n");
317        return false;
318      }
319    } else if (StartsWith(option, "-Xms")) {
320      size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
321      if (size == 0) {
322        Usage("Failed to parse memory option %s\n", option.c_str());
323        return false;
324      }
325      heap_initial_size_ = size;
326    } else if (StartsWith(option, "-Xmx")) {
327      size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
328      if (size == 0) {
329        Usage("Failed to parse memory option %s\n", option.c_str());
330        return false;
331      }
332      heap_maximum_size_ = size;
333    } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
334      size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
335      if (size == 0) {
336        Usage("Failed to parse memory option %s\n", option.c_str());
337        return false;
338      }
339      heap_growth_limit_ = size;
340    } else if (StartsWith(option, "-XX:HeapMinFree=")) {
341      size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
342      if (size == 0) {
343        Usage("Failed to parse memory option %s\n", option.c_str());
344        return false;
345      }
346      heap_min_free_ = size;
347    } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
348      size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
349      if (size == 0) {
350        Usage("Failed to parse memory option %s\n", option.c_str());
351        return false;
352      }
353      heap_max_free_ = size;
354    } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
355      if (!ParseDouble(option, '=', 0.1, 0.9, &heap_target_utilization_)) {
356        return false;
357      }
358    } else if (StartsWith(option, "-XX:ForegroundHeapGrowthMultiplier=")) {
359      if (!ParseDouble(option, '=', 0.1, 10.0, &foreground_heap_growth_multiplier_)) {
360        return false;
361      }
362    } else if (StartsWith(option, "-XX:ParallelGCThreads=")) {
363      if (!ParseUnsignedInteger(option, '=', &parallel_gc_threads_)) {
364        return false;
365      }
366    } else if (StartsWith(option, "-XX:ConcGCThreads=")) {
367      if (!ParseUnsignedInteger(option, '=', &conc_gc_threads_)) {
368        return false;
369      }
370    } else if (StartsWith(option, "-Xss")) {
371      size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
372      if (size == 0) {
373        Usage("Failed to parse memory option %s\n", option.c_str());
374        return false;
375      }
376      stack_size_ = size;
377    } else if (StartsWith(option, "-XX:MaxSpinsBeforeThinLockInflation=")) {
378      if (!ParseUnsignedInteger(option, '=', &max_spins_before_thin_lock_inflation_)) {
379        return false;
380      }
381    } else if (StartsWith(option, "-XX:LongPauseLogThreshold=")) {
382      unsigned int value;
383      if (!ParseUnsignedInteger(option, '=', &value)) {
384        return false;
385      }
386      long_pause_log_threshold_ = MsToNs(value);
387    } else if (StartsWith(option, "-XX:LongGCLogThreshold=")) {
388      unsigned int value;
389      if (!ParseUnsignedInteger(option, '=', &value)) {
390        return false;
391      }
392      long_gc_log_threshold_ = MsToNs(value);
393    } else if (option == "-XX:DumpGCPerformanceOnShutdown") {
394      dump_gc_performance_on_shutdown_ = true;
395    } else if (option == "-XX:IgnoreMaxFootprint") {
396      ignore_max_footprint_ = true;
397    } else if (option == "-XX:LowMemoryMode") {
398      if (background_collector_type_ == gc::kCollectorTypeHomogeneousSpaceCompact) {
399        // Use semispace instead of homogenous space compact for low memory mode.
400        background_collector_type_ = gc::kCollectorTypeSS;
401      }
402      low_memory_mode_ = true;
403      // TODO Might want to turn off must_relocate here.
404    } else if (option == "-XX:UseTLAB") {
405      use_tlab_ = true;
406    } else if (option == "-XX:EnableHSpaceCompactForOOM") {
407      use_homogeneous_space_compaction_for_oom_ = true;
408    } else if (option == "-XX:DisableHSpaceCompactForOOM") {
409      use_homogeneous_space_compaction_for_oom_ = false;
410    } else if (StartsWith(option, "-D")) {
411      properties_.push_back(option.substr(strlen("-D")));
412    } else if (StartsWith(option, "-Xjnitrace:")) {
413      jni_trace_ = option.substr(strlen("-Xjnitrace:"));
414    } else if (option == "compilercallbacks") {
415      compiler_callbacks_ =
416          reinterpret_cast<CompilerCallbacks*>(const_cast<void*>(options[i].second));
417    } else if (option == "imageinstructionset") {
418      image_isa_ = GetInstructionSetFromString(
419          reinterpret_cast<const char*>(options[i].second));
420    } else if (option == "-Xzygote") {
421      is_zygote_ = true;
422    } else if (StartsWith(option, "-Xpatchoat:")) {
423      if (!ParseStringAfterChar(option, ':', &patchoat_executable_)) {
424        return false;
425      }
426    } else if (option == "-Xrelocate") {
427      must_relocate_ = true;
428    } else if (option == "-Xnorelocate") {
429      must_relocate_ = false;
430    } else if (option == "-Xnodex2oat") {
431      dex2oat_enabled_ = false;
432    } else if (option == "-Xdex2oat") {
433      dex2oat_enabled_ = true;
434    } else if (option == "-Xint") {
435      interpreter_only_ = true;
436    } else if (StartsWith(option, "-Xgc:")) {
437      if (!ParseXGcOption(option)) {
438        return false;
439      }
440    } else if (StartsWith(option, "-XX:BackgroundGC=")) {
441      std::string substring;
442      if (!ParseStringAfterChar(option, '=', &substring)) {
443        return false;
444      }
445      // Special handling for HSpaceCompact since this is only valid as a background GC type.
446      if (substring == "HSpaceCompact") {
447        background_collector_type_ = gc::kCollectorTypeHomogeneousSpaceCompact;
448      } else {
449        gc::CollectorType collector_type = ParseCollectorType(substring);
450        if (collector_type != gc::kCollectorTypeNone) {
451          background_collector_type_ = collector_type;
452        } else {
453          Usage("Unknown -XX:BackgroundGC option %s\n", substring.c_str());
454          return false;
455        }
456      }
457    } else if (option == "-XX:+DisableExplicitGC") {
458      is_explicit_gc_disabled_ = true;
459    } else if (StartsWith(option, "-verbose:")) {
460      std::vector<std::string> verbose_options;
461      Split(option.substr(strlen("-verbose:")), ',', verbose_options);
462      for (size_t i = 0; i < verbose_options.size(); ++i) {
463        if (verbose_options[i] == "class") {
464          gLogVerbosity.class_linker = true;
465        } else if (verbose_options[i] == "compiler") {
466          gLogVerbosity.compiler = true;
467        } else if (verbose_options[i] == "gc") {
468          gLogVerbosity.gc = true;
469        } else if (verbose_options[i] == "heap") {
470          gLogVerbosity.heap = true;
471        } else if (verbose_options[i] == "jdwp") {
472          gLogVerbosity.jdwp = true;
473        } else if (verbose_options[i] == "jni") {
474          gLogVerbosity.jni = true;
475        } else if (verbose_options[i] == "monitor") {
476          gLogVerbosity.monitor = true;
477        } else if (verbose_options[i] == "profiler") {
478          gLogVerbosity.profiler = true;
479        } else if (verbose_options[i] == "signals") {
480          gLogVerbosity.signals = true;
481        } else if (verbose_options[i] == "startup") {
482          gLogVerbosity.startup = true;
483        } else if (verbose_options[i] == "third-party-jni") {
484          gLogVerbosity.third_party_jni = true;
485        } else if (verbose_options[i] == "threads") {
486          gLogVerbosity.threads = true;
487        } else if (verbose_options[i] == "verifier") {
488          gLogVerbosity.verifier = true;
489        } else {
490          Usage("Unknown -verbose option %s\n", verbose_options[i].c_str());
491          return false;
492        }
493      }
494    } else if (StartsWith(option, "-verbose-methods:")) {
495      gLogVerbosity.compiler = false;
496      Split(option.substr(strlen("-verbose-methods:")), ',', gVerboseMethods);
497    } else if (StartsWith(option, "-Xlockprofthreshold:")) {
498      if (!ParseUnsignedInteger(option, ':', &lock_profiling_threshold_)) {
499        return false;
500      }
501    } else if (StartsWith(option, "-Xstacktracefile:")) {
502      if (!ParseStringAfterChar(option, ':', &stack_trace_file_)) {
503        return false;
504      }
505    } else if (option == "sensitiveThread") {
506      const void* hook = options[i].second;
507      hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(hook));
508    } else if (option == "vfprintf") {
509      const void* hook = options[i].second;
510      if (hook == nullptr) {
511        Usage("vfprintf argument was NULL");
512        return false;
513      }
514      hook_vfprintf_ =
515          reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(hook));
516    } else if (option == "exit") {
517      const void* hook = options[i].second;
518      if (hook == nullptr) {
519        Usage("exit argument was NULL");
520        return false;
521      }
522      hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(hook));
523    } else if (option == "abort") {
524      const void* hook = options[i].second;
525      if (hook == nullptr) {
526        Usage("abort was NULL\n");
527        return false;
528      }
529      hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(hook));
530    } else if (option == "-Xmethod-trace") {
531      method_trace_ = true;
532    } else if (StartsWith(option, "-Xmethod-trace-file:")) {
533      method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
534    } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
535      if (!ParseUnsignedInteger(option, ':', &method_trace_file_size_)) {
536        return false;
537      }
538    } else if (option == "-Xprofile:threadcpuclock") {
539      Trace::SetDefaultClockSource(kTraceClockSourceThreadCpu);
540    } else if (option == "-Xprofile:wallclock") {
541      Trace::SetDefaultClockSource(kTraceClockSourceWall);
542    } else if (option == "-Xprofile:dualclock") {
543      Trace::SetDefaultClockSource(kTraceClockSourceDual);
544    } else if (option == "-Xenable-profiler") {
545      profiler_options_.enabled_ = true;
546    } else if (StartsWith(option, "-Xprofile-filename:")) {
547      if (!ParseStringAfterChar(option, ':', &profile_output_filename_)) {
548        return false;
549      }
550    } else if (StartsWith(option, "-Xprofile-period:")) {
551      if (!ParseUnsignedInteger(option, ':', &profiler_options_.period_s_)) {
552        return false;
553      }
554    } else if (StartsWith(option, "-Xprofile-duration:")) {
555      if (!ParseUnsignedInteger(option, ':', &profiler_options_.duration_s_)) {
556        return false;
557      }
558    } else if (StartsWith(option, "-Xprofile-interval:")) {
559      if (!ParseUnsignedInteger(option, ':', &profiler_options_.interval_us_)) {
560        return false;
561      }
562    } else if (StartsWith(option, "-Xprofile-backoff:")) {
563      if (!ParseDouble(option, ':', 1.0, 10.0, &profiler_options_.backoff_coefficient_)) {
564        return false;
565      }
566    } else if (option == "-Xprofile-start-immediately") {
567      profiler_options_.start_immediately_ = true;
568    } else if (StartsWith(option, "-Xprofile-top-k-threshold:")) {
569      if (!ParseDouble(option, ':', 0.0, 100.0, &profiler_options_.top_k_threshold_)) {
570        return false;
571      }
572    } else if (StartsWith(option, "-Xprofile-top-k-change-threshold:")) {
573      if (!ParseDouble(option, ':', 0.0, 100.0, &profiler_options_.top_k_change_threshold_)) {
574        return false;
575      }
576    } else if (option == "-Xprofile-type:method") {
577      profiler_options_.profile_type_ = kProfilerMethod;
578    } else if (option == "-Xprofile-type:stack") {
579      profiler_options_.profile_type_ = kProfilerBoundedStack;
580    } else if (StartsWith(option, "-Xprofile-max-stack-depth:")) {
581      if (!ParseUnsignedInteger(option, ':', &profiler_options_.max_stack_depth_)) {
582        return false;
583      }
584    } else if (StartsWith(option, "-Xcompiler:")) {
585      if (!ParseStringAfterChar(option, ':', &compiler_executable_)) {
586        return false;
587      }
588    } else if (option == "-Xcompiler-option") {
589      i++;
590      if (i == options.size()) {
591        Usage("Missing required compiler option for %s\n", option.c_str());
592        return false;
593      }
594      compiler_options_.push_back(options[i].first);
595    } else if (option == "-Ximage-compiler-option") {
596      i++;
597      if (i == options.size()) {
598        Usage("Missing required compiler option for %s\n", option.c_str());
599        return false;
600      }
601      image_compiler_options_.push_back(options[i].first);
602    } else if (StartsWith(option, "-Xverify:")) {
603      std::string verify_mode = option.substr(strlen("-Xverify:"));
604      if (verify_mode == "none") {
605        verify_ = false;
606      } else if (verify_mode == "remote" || verify_mode == "all") {
607        verify_ = true;
608      } else {
609        Usage("Unknown -Xverify option %s\n", verify_mode.c_str());
610        return false;
611      }
612    } else if (StartsWith(option, "-XX:NativeBridge=")) {
613      if (!ParseStringAfterChar(option, '=', &native_bridge_library_path_)) {
614        return false;
615      }
616    } else if (StartsWith(option, "-ea") ||
617               StartsWith(option, "-da") ||
618               StartsWith(option, "-enableassertions") ||
619               StartsWith(option, "-disableassertions") ||
620               (option == "--runtime-arg") ||
621               (option == "-esa") ||
622               (option == "-dsa") ||
623               (option == "-enablesystemassertions") ||
624               (option == "-disablesystemassertions") ||
625               (option == "-Xrs") ||
626               StartsWith(option, "-Xint:") ||
627               StartsWith(option, "-Xdexopt:") ||
628               (option == "-Xnoquithandler") ||
629               StartsWith(option, "-Xjniopts:") ||
630               StartsWith(option, "-Xjnigreflimit:") ||
631               (option == "-Xgenregmap") ||
632               (option == "-Xnogenregmap") ||
633               StartsWith(option, "-Xverifyopt:") ||
634               (option == "-Xcheckdexsum") ||
635               (option == "-Xincludeselectedop") ||
636               StartsWith(option, "-Xjitop:") ||
637               (option == "-Xincludeselectedmethod") ||
638               StartsWith(option, "-Xjitthreshold:") ||
639               StartsWith(option, "-Xjitcodecachesize:") ||
640               (option == "-Xjitblocking") ||
641               StartsWith(option, "-Xjitmethod:") ||
642               StartsWith(option, "-Xjitclass:") ||
643               StartsWith(option, "-Xjitoffset:") ||
644               StartsWith(option, "-Xjitconfig:") ||
645               (option == "-Xjitcheckcg") ||
646               (option == "-Xjitverbose") ||
647               (option == "-Xjitprofile") ||
648               (option == "-Xjitdisableopt") ||
649               (option == "-Xjitsuspendpoll") ||
650               StartsWith(option, "-XX:mainThreadStackSize=")) {
651      // Ignored for backwards compatibility.
652    } else if (!ignore_unrecognized) {
653      Usage("Unrecognized option %s\n", option.c_str());
654      return false;
655    }
656  }
657
658  // If a reference to the dalvik core.jar snuck in, replace it with
659  // the art specific version. This can happen with on device
660  // boot.art/boot.oat generation by GenerateImage which relies on the
661  // value of BOOTCLASSPATH.
662#if defined(ART_TARGET)
663  std::string core_jar("/core.jar");
664  std::string core_libart_jar("/core-libart.jar");
665#else
666  // The host uses hostdex files.
667  std::string core_jar("/core-hostdex.jar");
668  std::string core_libart_jar("/core-libart-hostdex.jar");
669#endif
670  size_t core_jar_pos = boot_class_path_string_.find(core_jar);
671  if (core_jar_pos != std::string::npos) {
672    boot_class_path_string_.replace(core_jar_pos, core_jar.size(), core_libart_jar);
673  }
674
675  if (compiler_callbacks_ == nullptr && image_.empty()) {
676    image_ += GetAndroidRoot();
677    image_ += "/framework/boot.art";
678  }
679  if (heap_growth_limit_ == 0) {
680    heap_growth_limit_ = heap_maximum_size_;
681  }
682  if (background_collector_type_ == gc::kCollectorTypeNone) {
683    background_collector_type_ = collector_type_;
684  }
685  return true;
686}  // NOLINT(readability/fn_size)
687
688void ParsedOptions::Exit(int status) {
689  hook_exit_(status);
690}
691
692void ParsedOptions::Abort() {
693  hook_abort_();
694}
695
696void ParsedOptions::UsageMessageV(FILE* stream, const char* fmt, va_list ap) {
697  hook_vfprintf_(stderr, fmt, ap);
698}
699
700void ParsedOptions::UsageMessage(FILE* stream, const char* fmt, ...) {
701  va_list ap;
702  va_start(ap, fmt);
703  UsageMessageV(stream, fmt, ap);
704  va_end(ap);
705}
706
707void ParsedOptions::Usage(const char* fmt, ...) {
708  bool error = (fmt != nullptr);
709  FILE* stream = error ? stderr : stdout;
710
711  if (fmt != nullptr) {
712    va_list ap;
713    va_start(ap, fmt);
714    UsageMessageV(stream, fmt, ap);
715    va_end(ap);
716  }
717
718  const char* program = "dalvikvm";
719  UsageMessage(stream, "%s: [options] class [argument ...]\n", program);
720  UsageMessage(stream, "\n");
721  UsageMessage(stream, "The following standard options are supported:\n");
722  UsageMessage(stream, "  -classpath classpath (-cp classpath)\n");
723  UsageMessage(stream, "  -Dproperty=value\n");
724  UsageMessage(stream, "  -verbose:tag ('gc', 'jni', or 'class')\n");
725  UsageMessage(stream, "  -showversion\n");
726  UsageMessage(stream, "  -help\n");
727  UsageMessage(stream, "  -agentlib:jdwp=options\n");
728  UsageMessage(stream, "\n");
729
730  UsageMessage(stream, "The following extended options are supported:\n");
731  UsageMessage(stream, "  -Xrunjdwp:<options>\n");
732  UsageMessage(stream, "  -Xbootclasspath:bootclasspath\n");
733  UsageMessage(stream, "  -Xcheck:tag  (e.g. 'jni')\n");
734  UsageMessage(stream, "  -XmsN (min heap, must be multiple of 1K, >= 1MB)\n");
735  UsageMessage(stream, "  -XmxN (max heap, must be multiple of 1K, >= 2MB)\n");
736  UsageMessage(stream, "  -XssN (stack size)\n");
737  UsageMessage(stream, "  -Xint\n");
738  UsageMessage(stream, "\n");
739
740  UsageMessage(stream, "The following Dalvik options are supported:\n");
741  UsageMessage(stream, "  -Xzygote\n");
742  UsageMessage(stream, "  -Xjnitrace:substring (eg NativeClass or nativeMethod)\n");
743  UsageMessage(stream, "  -Xstacktracefile:<filename>\n");
744  UsageMessage(stream, "  -Xgc:[no]preverify\n");
745  UsageMessage(stream, "  -Xgc:[no]postverify\n");
746  UsageMessage(stream, "  -XX:+DisableExplicitGC\n");
747  UsageMessage(stream, "  -XX:HeapGrowthLimit=N\n");
748  UsageMessage(stream, "  -XX:HeapMinFree=N\n");
749  UsageMessage(stream, "  -XX:HeapMaxFree=N\n");
750  UsageMessage(stream, "  -XX:HeapTargetUtilization=doublevalue\n");
751  UsageMessage(stream, "  -XX:ForegroundHeapGrowthMultiplier=doublevalue\n");
752  UsageMessage(stream, "  -XX:LowMemoryMode\n");
753  UsageMessage(stream, "  -Xprofile:{threadcpuclock,wallclock,dualclock}\n");
754  UsageMessage(stream, "\n");
755
756  UsageMessage(stream, "The following unique to ART options are supported:\n");
757  UsageMessage(stream, "  -Xgc:[no]preverify_rosalloc\n");
758  UsageMessage(stream, "  -Xgc:[no]postsweepingverify_rosalloc\n");
759  UsageMessage(stream, "  -Xgc:[no]postverify_rosalloc\n");
760  UsageMessage(stream, "  -Xgc:[no]presweepingverify\n");
761  UsageMessage(stream, "  -Ximage:filename\n");
762  UsageMessage(stream, "  -XX:ParallelGCThreads=integervalue\n");
763  UsageMessage(stream, "  -XX:ConcGCThreads=integervalue\n");
764  UsageMessage(stream, "  -XX:MaxSpinsBeforeThinLockInflation=integervalue\n");
765  UsageMessage(stream, "  -XX:LongPauseLogThreshold=integervalue\n");
766  UsageMessage(stream, "  -XX:LongGCLogThreshold=integervalue\n");
767  UsageMessage(stream, "  -XX:DumpGCPerformanceOnShutdown\n");
768  UsageMessage(stream, "  -XX:IgnoreMaxFootprint\n");
769  UsageMessage(stream, "  -XX:UseTLAB\n");
770  UsageMessage(stream, "  -XX:BackgroundGC=none\n");
771  UsageMessage(stream, "  -Xmethod-trace\n");
772  UsageMessage(stream, "  -Xmethod-trace-file:filename");
773  UsageMessage(stream, "  -Xmethod-trace-file-size:integervalue\n");
774  UsageMessage(stream, "  -Xenable-profiler\n");
775  UsageMessage(stream, "  -Xprofile-filename:filename\n");
776  UsageMessage(stream, "  -Xprofile-period:integervalue\n");
777  UsageMessage(stream, "  -Xprofile-duration:integervalue\n");
778  UsageMessage(stream, "  -Xprofile-interval:integervalue\n");
779  UsageMessage(stream, "  -Xprofile-backoff:doublevalue\n");
780  UsageMessage(stream, "  -Xprofile-start-immediately\n");
781  UsageMessage(stream, "  -Xprofile-top-k-threshold:doublevalue\n");
782  UsageMessage(stream, "  -Xprofile-top-k-change-threshold:doublevalue\n");
783  UsageMessage(stream, "  -Xprofile-type:{method,stack}\n");
784  UsageMessage(stream, "  -Xprofile-max-stack-depth:integervalue\n");
785  UsageMessage(stream, "  -Xcompiler:filename\n");
786  UsageMessage(stream, "  -Xcompiler-option dex2oat-option\n");
787  UsageMessage(stream, "  -Ximage-compiler-option dex2oat-option\n");
788  UsageMessage(stream, "  -Xpatchoat:filename\n");
789  UsageMessage(stream, "  -X[no]relocate\n");
790  UsageMessage(stream, "  -X[no]dex2oat (Whether to invoke dex2oat on the application)\n");
791  UsageMessage(stream, "\n");
792
793  UsageMessage(stream, "The following previously supported Dalvik options are ignored:\n");
794  UsageMessage(stream, "  -ea[:<package name>... |:<class name>]\n");
795  UsageMessage(stream, "  -da[:<package name>... |:<class name>]\n");
796  UsageMessage(stream, "   (-enableassertions, -disableassertions)\n");
797  UsageMessage(stream, "  -esa\n");
798  UsageMessage(stream, "  -dsa\n");
799  UsageMessage(stream, "   (-enablesystemassertions, -disablesystemassertions)\n");
800  UsageMessage(stream, "  -Xverify:{none,remote,all}\n");
801  UsageMessage(stream, "  -Xrs\n");
802  UsageMessage(stream, "  -Xint:portable, -Xint:fast, -Xint:jit\n");
803  UsageMessage(stream, "  -Xdexopt:{none,verified,all,full}\n");
804  UsageMessage(stream, "  -Xnoquithandler\n");
805  UsageMessage(stream, "  -Xjniopts:{warnonly,forcecopy}\n");
806  UsageMessage(stream, "  -Xjnigreflimit:integervalue\n");
807  UsageMessage(stream, "  -Xgc:[no]precise\n");
808  UsageMessage(stream, "  -Xgc:[no]verifycardtable\n");
809  UsageMessage(stream, "  -X[no]genregmap\n");
810  UsageMessage(stream, "  -Xverifyopt:[no]checkmon\n");
811  UsageMessage(stream, "  -Xcheckdexsum\n");
812  UsageMessage(stream, "  -Xincludeselectedop\n");
813  UsageMessage(stream, "  -Xjitop:hexopvalue[-endvalue][,hexopvalue[-endvalue]]*\n");
814  UsageMessage(stream, "  -Xincludeselectedmethod\n");
815  UsageMessage(stream, "  -Xjitthreshold:integervalue\n");
816  UsageMessage(stream, "  -Xjitcodecachesize:decimalvalueofkbytes\n");
817  UsageMessage(stream, "  -Xjitblocking\n");
818  UsageMessage(stream, "  -Xjitmethod:signature[,signature]* (eg Ljava/lang/String\\;replace)\n");
819  UsageMessage(stream, "  -Xjitclass:classname[,classname]*\n");
820  UsageMessage(stream, "  -Xjitoffset:offset[,offset]\n");
821  UsageMessage(stream, "  -Xjitconfig:filename\n");
822  UsageMessage(stream, "  -Xjitcheckcg\n");
823  UsageMessage(stream, "  -Xjitverbose\n");
824  UsageMessage(stream, "  -Xjitprofile\n");
825  UsageMessage(stream, "  -Xjitdisableopt\n");
826  UsageMessage(stream, "  -Xjitsuspendpoll\n");
827  UsageMessage(stream, "  -XX:mainThreadStackSize=N\n");
828  UsageMessage(stream, "\n");
829
830  Exit((error) ? 1 : 0);
831}
832
833bool ParsedOptions::ParseStringAfterChar(const std::string& s, char c, std::string* parsed_value) {
834  std::string::size_type colon = s.find(c);
835  if (colon == std::string::npos) {
836    Usage("Missing char %c in option %s\n", c, s.c_str());
837    return false;
838  }
839  // Add one to remove the char we were trimming until.
840  *parsed_value = s.substr(colon + 1);
841  return true;
842}
843
844bool ParsedOptions::ParseInteger(const std::string& s, char after_char, int* parsed_value) {
845  std::string::size_type colon = s.find(after_char);
846  if (colon == std::string::npos) {
847    Usage("Missing char %c in option %s\n", after_char, s.c_str());
848    return false;
849  }
850  const char* begin = &s[colon + 1];
851  char* end;
852  size_t result = strtoul(begin, &end, 10);
853  if (begin == end || *end != '\0') {
854    Usage("Failed to parse integer from %s\n", s.c_str());
855    return false;
856  }
857  *parsed_value = result;
858  return true;
859}
860
861bool ParsedOptions::ParseUnsignedInteger(const std::string& s, char after_char,
862                                         unsigned int* parsed_value) {
863  int i;
864  if (!ParseInteger(s, after_char, &i)) {
865    return false;
866  }
867  if (i < 0) {
868    Usage("Negative value %d passed for unsigned option %s\n", i, s.c_str());
869    return false;
870  }
871  *parsed_value = i;
872  return true;
873}
874
875bool ParsedOptions::ParseDouble(const std::string& option, char after_char,
876                                double min, double max, double* parsed_value) {
877  std::string substring;
878  if (!ParseStringAfterChar(option, after_char, &substring)) {
879    return false;
880  }
881  bool sane_val = true;
882  double value;
883  if (false) {
884    // TODO: this doesn't seem to work on the emulator.  b/15114595
885    std::stringstream iss(substring);
886    iss >> value;
887    // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range.
888    sane_val = iss.eof() && (value >= min) && (value <= max);
889  } else {
890    char* end = nullptr;
891    value = strtod(substring.c_str(), &end);
892    sane_val = *end == '\0' && value >= min && value <= max;
893  }
894  if (!sane_val) {
895    Usage("Invalid double value %s for option %s\n", substring.c_str(), option.c_str());
896    return false;
897  }
898  *parsed_value = value;
899  return true;
900}
901
902}  // namespace art
903