Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 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 "compiler_driver.h" |
| 18 | |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 19 | #define ATRACE_TAG ATRACE_TAG_DALVIK |
| 20 | #include <utils/Trace.h> |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 21 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 22 | #include <unordered_set> |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 23 | #include <vector> |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 24 | #include <unistd.h> |
| 25 | |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 26 | #ifndef __APPLE__ |
| 27 | #include <malloc.h> // For mallinfo |
| 28 | #endif |
| 29 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 30 | #include "art_field-inl.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 31 | #include "art_method-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 32 | #include "base/stl_util.h" |
Vladimir Marko | 80afd02 | 2015-05-19 18:08:00 +0100 | [diff] [blame] | 33 | #include "base/time_utils.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 34 | #include "base/timing_logger.h" |
Vladimir Marko | 3481ba2 | 2015-04-13 12:22:36 +0100 | [diff] [blame] | 35 | #include "class_linker-inl.h" |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 36 | #include "compiled_class.h" |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 37 | #include "compiled_method.h" |
Nicolas Geoffray | b34f69a | 2014-03-07 15:28:39 +0000 | [diff] [blame] | 38 | #include "compiler.h" |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 39 | #include "compiler_driver-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 40 | #include "dex_compilation_unit.h" |
| 41 | #include "dex_file-inl.h" |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 42 | #include "dex_instruction-inl.h" |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 43 | #include "dex/dex_to_dex_compiler.h" |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 44 | #include "dex/verification_results.h" |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 45 | #include "dex/verified_method.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 46 | #include "dex/quick/dex_file_method_inliner.h" |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 47 | #include "dex/quick/dex_file_to_method_inliner_map.h" |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 48 | #include "driver/compiler_options.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 49 | #include "jni_internal.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 50 | #include "object_lock.h" |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 51 | #include "profiler.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 52 | #include "runtime.h" |
| 53 | #include "gc/accounting/card_table-inl.h" |
| 54 | #include "gc/accounting/heap_bitmap.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 55 | #include "gc/space/image_space.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 56 | #include "gc/space/space.h" |
| 57 | #include "mirror/class_loader.h" |
| 58 | #include "mirror/class-inl.h" |
| 59 | #include "mirror/dex_cache-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 60 | #include "mirror/object-inl.h" |
| 61 | #include "mirror/object_array-inl.h" |
| 62 | #include "mirror/throwable.h" |
| 63 | #include "scoped_thread_state_change.h" |
| 64 | #include "ScopedLocalRef.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 65 | #include "handle_scope-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 66 | #include "thread.h" |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 67 | #include "thread_list.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 68 | #include "thread_pool.h" |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 69 | #include "trampolines/trampoline_compiler.h" |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 70 | #include "transaction.h" |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 71 | #include "utils/dex_cache_arrays_layout-inl.h" |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 72 | #include "utils/swap_space.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 73 | #include "verifier/method_verifier.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 74 | #include "verifier/method_verifier-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 75 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 76 | namespace art { |
| 77 | |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 78 | static constexpr bool kTimeCompileMethod = !kIsDebugBuild; |
| 79 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 80 | // Whether classes-to-compile and methods-to-compile are only applied to the boot image, or, when |
| 81 | // given, too all compilations. |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 82 | static constexpr bool kRestrictCompilationFiltersToImage = true; |
| 83 | |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 84 | // Print additional info during profile guided compilation. |
| 85 | static constexpr bool kDebugProfileGuidedCompilation = false; |
| 86 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 87 | static double Percentage(size_t x, size_t y) { |
| 88 | return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); |
| 89 | } |
| 90 | |
| 91 | static void DumpStat(size_t x, size_t y, const char* str) { |
| 92 | if (x == 0 && y == 0) { |
| 93 | return; |
| 94 | } |
Ian Rogers | e732ef1 | 2013-10-09 15:22:24 -0700 | [diff] [blame] | 95 | LOG(INFO) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 96 | } |
| 97 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 98 | class CompilerDriver::AOTCompilationStats { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 99 | public: |
| 100 | AOTCompilationStats() |
| 101 | : stats_lock_("AOT compilation statistics lock"), |
| 102 | types_in_dex_cache_(0), types_not_in_dex_cache_(0), |
| 103 | strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), |
| 104 | resolved_types_(0), unresolved_types_(0), |
| 105 | resolved_instance_fields_(0), unresolved_instance_fields_(0), |
| 106 | resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), |
| 107 | type_based_devirtualization_(0), |
| 108 | safe_casts_(0), not_safe_casts_(0) { |
| 109 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 110 | resolved_methods_[i] = 0; |
| 111 | unresolved_methods_[i] = 0; |
| 112 | virtual_made_direct_[i] = 0; |
| 113 | direct_calls_to_boot_[i] = 0; |
| 114 | direct_methods_to_boot_[i] = 0; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | void Dump() { |
| 119 | DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); |
| 120 | DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); |
| 121 | DumpStat(resolved_types_, unresolved_types_, "types resolved"); |
| 122 | DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); |
| 123 | DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, |
| 124 | "static fields resolved"); |
| 125 | DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, |
| 126 | "static fields local to a class"); |
| 127 | DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); |
| 128 | // Note, the code below subtracts the stat value so that when added to the stat value we have |
| 129 | // 100% of samples. TODO: clean this up. |
| 130 | DumpStat(type_based_devirtualization_, |
| 131 | resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + |
| 132 | resolved_methods_[kInterface] + unresolved_methods_[kInterface] - |
| 133 | type_based_devirtualization_, |
| 134 | "virtual/interface calls made direct based on type information"); |
| 135 | |
| 136 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 137 | std::ostringstream oss; |
| 138 | oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; |
| 139 | DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); |
| 140 | if (virtual_made_direct_[i] > 0) { |
| 141 | std::ostringstream oss2; |
| 142 | oss2 << static_cast<InvokeType>(i) << " methods made direct"; |
| 143 | DumpStat(virtual_made_direct_[i], |
| 144 | resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], |
| 145 | oss2.str().c_str()); |
| 146 | } |
| 147 | if (direct_calls_to_boot_[i] > 0) { |
| 148 | std::ostringstream oss2; |
| 149 | oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; |
| 150 | DumpStat(direct_calls_to_boot_[i], |
| 151 | resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], |
| 152 | oss2.str().c_str()); |
| 153 | } |
| 154 | if (direct_methods_to_boot_[i] > 0) { |
| 155 | std::ostringstream oss2; |
| 156 | oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; |
| 157 | DumpStat(direct_methods_to_boot_[i], |
| 158 | resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], |
| 159 | oss2.str().c_str()); |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | // Allow lossy statistics in non-debug builds. |
| 165 | #ifndef NDEBUG |
| 166 | #define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) |
| 167 | #else |
| 168 | #define STATS_LOCK() |
| 169 | #endif |
| 170 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 171 | void TypeInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 172 | STATS_LOCK(); |
| 173 | types_in_dex_cache_++; |
| 174 | } |
| 175 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 176 | void TypeNotInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 177 | STATS_LOCK(); |
| 178 | types_not_in_dex_cache_++; |
| 179 | } |
| 180 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 181 | void StringInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 182 | STATS_LOCK(); |
| 183 | strings_in_dex_cache_++; |
| 184 | } |
| 185 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 186 | void StringNotInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 187 | STATS_LOCK(); |
| 188 | strings_not_in_dex_cache_++; |
| 189 | } |
| 190 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 191 | void TypeDoesntNeedAccessCheck() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 192 | STATS_LOCK(); |
| 193 | resolved_types_++; |
| 194 | } |
| 195 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 196 | void TypeNeedsAccessCheck() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 197 | STATS_LOCK(); |
| 198 | unresolved_types_++; |
| 199 | } |
| 200 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 201 | void ResolvedInstanceField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 202 | STATS_LOCK(); |
| 203 | resolved_instance_fields_++; |
| 204 | } |
| 205 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 206 | void UnresolvedInstanceField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 207 | STATS_LOCK(); |
| 208 | unresolved_instance_fields_++; |
| 209 | } |
| 210 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 211 | void ResolvedLocalStaticField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 212 | STATS_LOCK(); |
| 213 | resolved_local_static_fields_++; |
| 214 | } |
| 215 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 216 | void ResolvedStaticField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 217 | STATS_LOCK(); |
| 218 | resolved_static_fields_++; |
| 219 | } |
| 220 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 221 | void UnresolvedStaticField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 222 | STATS_LOCK(); |
| 223 | unresolved_static_fields_++; |
| 224 | } |
| 225 | |
| 226 | // Indicate that type information from the verifier led to devirtualization. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 227 | void PreciseTypeDevirtualization() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 228 | STATS_LOCK(); |
| 229 | type_based_devirtualization_++; |
| 230 | } |
| 231 | |
| 232 | // Indicate that a method of the given type was resolved at compile time. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 233 | void ResolvedMethod(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 234 | DCHECK_LE(type, kMaxInvokeType); |
| 235 | STATS_LOCK(); |
| 236 | resolved_methods_[type]++; |
| 237 | } |
| 238 | |
| 239 | // Indicate that a method of the given type was unresolved at compile time as it was in an |
| 240 | // unknown dex file. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 241 | void UnresolvedMethod(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 242 | DCHECK_LE(type, kMaxInvokeType); |
| 243 | STATS_LOCK(); |
| 244 | unresolved_methods_[type]++; |
| 245 | } |
| 246 | |
| 247 | // Indicate that a type of virtual method dispatch has been converted into a direct method |
| 248 | // dispatch. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 249 | void VirtualMadeDirect(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 250 | DCHECK(type == kVirtual || type == kInterface || type == kSuper); |
| 251 | STATS_LOCK(); |
| 252 | virtual_made_direct_[type]++; |
| 253 | } |
| 254 | |
| 255 | // Indicate that a method of the given type was able to call directly into boot. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 256 | void DirectCallsToBoot(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 257 | DCHECK_LE(type, kMaxInvokeType); |
| 258 | STATS_LOCK(); |
| 259 | direct_calls_to_boot_[type]++; |
| 260 | } |
| 261 | |
| 262 | // Indicate that a method of the given type was able to be resolved directly from boot. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 263 | void DirectMethodsToBoot(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 264 | DCHECK_LE(type, kMaxInvokeType); |
| 265 | STATS_LOCK(); |
| 266 | direct_methods_to_boot_[type]++; |
| 267 | } |
| 268 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 269 | void ProcessedInvoke(InvokeType type, int flags) REQUIRES(!stats_lock_) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 270 | STATS_LOCK(); |
| 271 | if (flags == 0) { |
| 272 | unresolved_methods_[type]++; |
| 273 | } else { |
| 274 | DCHECK_NE((flags & kFlagMethodResolved), 0); |
| 275 | resolved_methods_[type]++; |
| 276 | if ((flags & kFlagVirtualMadeDirect) != 0) { |
| 277 | virtual_made_direct_[type]++; |
| 278 | if ((flags & kFlagPreciseTypeDevirtualization) != 0) { |
| 279 | type_based_devirtualization_++; |
| 280 | } |
| 281 | } else { |
| 282 | DCHECK_EQ((flags & kFlagPreciseTypeDevirtualization), 0); |
| 283 | } |
| 284 | if ((flags & kFlagDirectCallToBoot) != 0) { |
| 285 | direct_calls_to_boot_[type]++; |
| 286 | } |
| 287 | if ((flags & kFlagDirectMethodToBoot) != 0) { |
| 288 | direct_methods_to_boot_[type]++; |
| 289 | } |
| 290 | } |
| 291 | } |
| 292 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 293 | // A check-cast could be eliminated due to verifier type analysis. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 294 | void SafeCast() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 295 | STATS_LOCK(); |
| 296 | safe_casts_++; |
| 297 | } |
| 298 | |
| 299 | // A check-cast couldn't be eliminated due to verifier type analysis. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 300 | void NotASafeCast() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 301 | STATS_LOCK(); |
| 302 | not_safe_casts_++; |
| 303 | } |
| 304 | |
| 305 | private: |
| 306 | Mutex stats_lock_; |
| 307 | |
| 308 | size_t types_in_dex_cache_; |
| 309 | size_t types_not_in_dex_cache_; |
| 310 | |
| 311 | size_t strings_in_dex_cache_; |
| 312 | size_t strings_not_in_dex_cache_; |
| 313 | |
| 314 | size_t resolved_types_; |
| 315 | size_t unresolved_types_; |
| 316 | |
| 317 | size_t resolved_instance_fields_; |
| 318 | size_t unresolved_instance_fields_; |
| 319 | |
| 320 | size_t resolved_local_static_fields_; |
| 321 | size_t resolved_static_fields_; |
| 322 | size_t unresolved_static_fields_; |
| 323 | // Type based devirtualization for invoke interface and virtual. |
| 324 | size_t type_based_devirtualization_; |
| 325 | |
| 326 | size_t resolved_methods_[kMaxInvokeType + 1]; |
| 327 | size_t unresolved_methods_[kMaxInvokeType + 1]; |
| 328 | size_t virtual_made_direct_[kMaxInvokeType + 1]; |
| 329 | size_t direct_calls_to_boot_[kMaxInvokeType + 1]; |
| 330 | size_t direct_methods_to_boot_[kMaxInvokeType + 1]; |
| 331 | |
| 332 | size_t safe_casts_; |
| 333 | size_t not_safe_casts_; |
| 334 | |
| 335 | DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); |
| 336 | }; |
| 337 | |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 338 | CompilerDriver::CompilerDriver( |
| 339 | const CompilerOptions* compiler_options, |
| 340 | VerificationResults* verification_results, |
| 341 | DexFileToMethodInlinerMap* method_inliner_map, |
| 342 | Compiler::Kind compiler_kind, |
| 343 | InstructionSet instruction_set, |
| 344 | const InstructionSetFeatures* instruction_set_features, |
| 345 | bool boot_image, std::unordered_set<std::string>* image_classes, |
| 346 | std::unordered_set<std::string>* compiled_classes, |
| 347 | std::unordered_set<std::string>* compiled_methods, |
| 348 | size_t thread_count, bool dump_stats, bool dump_passes, |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 349 | CumulativeLogger* timer, int swap_fd, |
Calin Juravle | 998c216 | 2015-12-21 15:39:33 +0200 | [diff] [blame] | 350 | const std::unordered_map<const DexFile*, const char*>* dex_to_oat_map, |
| 351 | const ProfileCompilationInfo* profile_compilation_info) |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 352 | : compiler_options_(compiler_options), |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 353 | verification_results_(verification_results), |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 354 | method_inliner_map_(method_inliner_map), |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 355 | compiler_(Compiler::Create(this, compiler_kind)), |
Jeff Hao | 48699fb | 2015-04-06 14:21:37 -0700 | [diff] [blame] | 356 | compiler_kind_(compiler_kind), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 357 | instruction_set_(instruction_set), |
Dave Allison | 7020278 | 2013-10-22 17:52:19 -0700 | [diff] [blame] | 358 | instruction_set_features_(instruction_set_features), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 359 | freezing_constructor_lock_("freezing constructor lock"), |
| 360 | compiled_classes_lock_("compiled classes lock"), |
| 361 | compiled_methods_lock_("compiled method lock"), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 362 | compiled_methods_(MethodTable::key_compare()), |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 363 | non_relative_linker_patch_count_(0u), |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 364 | boot_image_(boot_image), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 365 | image_classes_(image_classes), |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 366 | classes_to_compile_(compiled_classes), |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 367 | methods_to_compile_(compiled_methods), |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 368 | had_hard_verifier_failure_(false), |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 369 | parallel_thread_count_(thread_count), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 370 | stats_(new AOTCompilationStats), |
| 371 | dump_stats_(dump_stats), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 372 | dump_passes_(dump_passes), |
| 373 | timings_logger_(timer), |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 374 | compiler_context_(nullptr), |
Andreas Gampe | 57b3429 | 2015-01-14 15:45:59 -0800 | [diff] [blame] | 375 | support_boot_image_fixup_(instruction_set != kMips && instruction_set != kMips64), |
Vladimir Marko | d1eaf0d | 2015-10-29 12:18:29 +0000 | [diff] [blame] | 376 | dex_files_for_oat_file_(nullptr), |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 377 | dex_file_oat_filename_map_(dex_to_oat_map), |
Calin Juravle | 998c216 | 2015-12-21 15:39:33 +0200 | [diff] [blame] | 378 | compiled_method_storage_(swap_fd), |
| 379 | profile_compilation_info_(profile_compilation_info) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 380 | DCHECK(compiler_options_ != nullptr); |
| 381 | DCHECK(verification_results_ != nullptr); |
| 382 | DCHECK(method_inliner_map_ != nullptr); |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 383 | |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 384 | compiler_->Init(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 385 | |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 386 | CHECK_EQ(boot_image_, image_classes_.get() != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | CompilerDriver::~CompilerDriver() { |
| 390 | Thread* self = Thread::Current(); |
| 391 | { |
| 392 | MutexLock mu(self, compiled_classes_lock_); |
| 393 | STLDeleteValues(&compiled_classes_); |
| 394 | } |
| 395 | { |
| 396 | MutexLock mu(self, compiled_methods_lock_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 397 | for (auto& pair : compiled_methods_) { |
| 398 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, pair.second); |
| 399 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 400 | } |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 401 | compiler_->UnInit(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 402 | } |
| 403 | |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 404 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 405 | #define CREATE_TRAMPOLINE(type, abi, offset) \ |
Andreas Gampe | af13ad9 | 2014-04-11 12:07:48 -0700 | [diff] [blame] | 406 | if (Is64BitInstructionSet(instruction_set_)) { \ |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 407 | return CreateTrampoline64(instruction_set_, abi, \ |
| 408 | type ## _ENTRYPOINT_OFFSET(8, offset)); \ |
| 409 | } else { \ |
| 410 | return CreateTrampoline32(instruction_set_, abi, \ |
| 411 | type ## _ENTRYPOINT_OFFSET(4, offset)); \ |
| 412 | } |
| 413 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 414 | const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 415 | CREATE_TRAMPOLINE(JNI, kJniAbi, pDlsymLookup) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 416 | } |
| 417 | |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 418 | const std::vector<uint8_t>* CompilerDriver::CreateQuickGenericJniTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 419 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickGenericJniTrampoline) |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 420 | } |
| 421 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 422 | const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 423 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickImtConflictTrampoline) |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 424 | } |
| 425 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 426 | const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 427 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickResolutionTrampoline) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 428 | } |
| 429 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 430 | const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 431 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickToInterpreterBridge) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 432 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 433 | #undef CREATE_TRAMPOLINE |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 434 | |
| 435 | void CompilerDriver::CompileAll(jobject class_loader, |
Brian Carlstrom | 4560248 | 2013-07-21 22:07:55 -0700 | [diff] [blame] | 436 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 437 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 438 | DCHECK(!Runtime::Current()->IsStarted()); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 439 | |
| 440 | InitializeThreadPools(); |
| 441 | |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 442 | VLOG(compiler) << "Before precompile " << GetMemoryUsageString(false); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 443 | // Precompile: |
| 444 | // 1) Load image classes |
| 445 | // 2) Resolve all classes |
| 446 | // 3) Attempt to verify all classes |
| 447 | // 4) Attempt to initialize image classes, and trivially initialized classes |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 448 | PreCompile(class_loader, dex_files, timings); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 449 | // Compile: |
| 450 | // 1) Compile all classes and methods enabled for compilation. May fall back to dex-to-dex |
| 451 | // compilation. |
| 452 | if (!GetCompilerOptions().VerifyAtRuntime()) { |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 453 | Compile(class_loader, dex_files, timings); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 454 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 455 | if (dump_stats_) { |
| 456 | stats_->Dump(); |
| 457 | } |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 458 | |
| 459 | FreeThreadPools(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 460 | } |
| 461 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 462 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 463 | Thread* self, const CompilerDriver& driver, Handle<mirror::ClassLoader> class_loader, |
| 464 | const DexFile& dex_file, const DexFile::ClassDef& class_def) |
| 465 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 466 | auto* const runtime = Runtime::Current(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 467 | if (runtime->UseJit() || driver.GetCompilerOptions().VerifyAtRuntime()) { |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 468 | // Verify at runtime shouldn't dex to dex since we didn't resolve of verify. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 469 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 470 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 471 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 472 | ClassLinker* class_linker = runtime->GetClassLinker(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 473 | mirror::Class* klass = class_linker->FindClass(self, descriptor, class_loader); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 474 | if (klass == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 475 | CHECK(self->IsExceptionPending()); |
| 476 | self->ClearException(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 477 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 478 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 479 | // DexToDex at the kOptimize level may introduce quickened opcodes, which replace symbolic |
| 480 | // references with actual offsets. We cannot re-verify such instructions. |
| 481 | // |
| 482 | // We store the verification information in the class status in the oat file, which the linker |
| 483 | // can validate (checksums) and use to skip load-time verification. It is thus safe to |
| 484 | // optimize when a class has been fully verified before. |
| 485 | if (klass->IsVerified()) { |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 486 | // Class is verified so we can enable DEX-to-DEX compilation for performance. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 487 | return optimizer::DexToDexCompilationLevel::kOptimize; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 488 | } else if (klass->IsCompileTimeVerified()) { |
| 489 | // Class verification has soft-failed. Anyway, ensure at least correctness. |
| 490 | DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 491 | return optimizer::DexToDexCompilationLevel::kRequired; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 492 | } else { |
| 493 | // Class verification has failed: do not run DEX-to-DEX compilation. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 494 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 499 | Thread* self, |
| 500 | const CompilerDriver& driver, |
| 501 | jobject jclass_loader, |
| 502 | const DexFile& dex_file, |
| 503 | const DexFile::ClassDef& class_def) { |
| 504 | ScopedObjectAccess soa(self); |
| 505 | StackHandleScope<1> hs(soa.Self()); |
| 506 | Handle<mirror::ClassLoader> class_loader( |
| 507 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 508 | return GetDexToDexCompilationLevel(self, driver, class_loader, dex_file, class_def); |
| 509 | } |
| 510 | |
| 511 | // Does the runtime for the InstructionSet provide an implementation returned by |
| 512 | // GetQuickGenericJniStub allowing down calls that aren't compiled using a JNI compiler? |
| 513 | static bool InstructionSetHasGenericJniStub(InstructionSet isa) { |
| 514 | switch (isa) { |
| 515 | case kArm: |
| 516 | case kArm64: |
| 517 | case kThumb2: |
| 518 | case kMips: |
| 519 | case kMips64: |
| 520 | case kX86: |
| 521 | case kX86_64: return true; |
| 522 | default: return false; |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | static void CompileMethod(Thread* self, |
| 527 | CompilerDriver* driver, |
| 528 | const DexFile::CodeItem* code_item, |
| 529 | uint32_t access_flags, |
| 530 | InvokeType invoke_type, |
| 531 | uint16_t class_def_idx, |
| 532 | uint32_t method_idx, |
| 533 | jobject class_loader, |
| 534 | const DexFile& dex_file, |
| 535 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 536 | bool compilation_enabled, |
| 537 | Handle<mirror::DexCache> dex_cache) |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 538 | REQUIRES(!driver->compiled_methods_lock_) { |
| 539 | DCHECK(driver != nullptr); |
| 540 | CompiledMethod* compiled_method = nullptr; |
| 541 | uint64_t start_ns = kTimeCompileMethod ? NanoTime() : 0; |
| 542 | MethodReference method_ref(&dex_file, method_idx); |
| 543 | |
| 544 | if ((access_flags & kAccNative) != 0) { |
| 545 | // Are we interpreting only and have support for generic JNI down calls? |
| 546 | if (!driver->GetCompilerOptions().IsCompilationEnabled() && |
| 547 | InstructionSetHasGenericJniStub(driver->GetInstructionSet())) { |
| 548 | // Leaving this empty will trigger the generic JNI version |
| 549 | } else { |
| 550 | compiled_method = driver->GetCompiler()->JniCompile(access_flags, method_idx, dex_file); |
| 551 | CHECK(compiled_method != nullptr); |
| 552 | } |
| 553 | } else if ((access_flags & kAccAbstract) != 0) { |
| 554 | // Abstract methods don't have code. |
Nicolas Geoffray | d28b969 | 2015-11-04 14:36:55 +0000 | [diff] [blame] | 555 | } else { |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 556 | const VerifiedMethod* verified_method = |
| 557 | driver->GetVerificationResults()->GetVerifiedMethod(method_ref); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 558 | bool compile = compilation_enabled && |
| 559 | // Basic checks, e.g., not <clinit>. |
| 560 | driver->GetVerificationResults() |
| 561 | ->IsCandidateForCompilation(method_ref, access_flags) && |
| 562 | // Did not fail to create VerifiedMethod metadata. |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 563 | verified_method != nullptr && |
| 564 | // Do not have failures that should punt to the interpreter. |
| 565 | !verified_method->HasRuntimeThrow() && |
| 566 | (verified_method->GetEncounteredVerificationFailures() & |
Andreas Gampe | a727e37 | 2015-08-25 09:22:37 -0700 | [diff] [blame] | 567 | (verifier::VERIFY_ERROR_FORCE_INTERPRETER | verifier::VERIFY_ERROR_LOCKING)) == 0 && |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 568 | // Is eligable for compilation by methods-to-compile filter. |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 569 | driver->IsMethodToCompile(method_ref) && |
| 570 | driver->ShouldCompileBasedOnProfile(method_ref); |
| 571 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 572 | if (compile) { |
| 573 | // NOTE: if compiler declines to compile this method, it will return null. |
| 574 | compiled_method = driver->GetCompiler()->Compile(code_item, access_flags, invoke_type, |
| 575 | class_def_idx, method_idx, class_loader, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 576 | dex_file, dex_cache); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 577 | } |
| 578 | if (compiled_method == nullptr && |
| 579 | dex_to_dex_compilation_level != optimizer::DexToDexCompilationLevel::kDontDexToDexCompile) { |
| 580 | // TODO: add a command-line option to disable DEX-to-DEX compilation ? |
| 581 | // Do not optimize if a VerifiedMethod is missing. SafeCast elision, for example, relies on |
| 582 | // it. |
| 583 | compiled_method = optimizer::ArtCompileDEX( |
| 584 | driver, |
| 585 | code_item, |
| 586 | access_flags, |
| 587 | invoke_type, |
| 588 | class_def_idx, |
| 589 | method_idx, |
| 590 | class_loader, |
| 591 | dex_file, |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 592 | (verified_method != nullptr) |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 593 | ? dex_to_dex_compilation_level |
| 594 | : optimizer::DexToDexCompilationLevel::kRequired); |
| 595 | } |
| 596 | } |
| 597 | if (kTimeCompileMethod) { |
| 598 | uint64_t duration_ns = NanoTime() - start_ns; |
| 599 | if (duration_ns > MsToNs(driver->GetCompiler()->GetMaximumCompilationTimeBeforeWarning())) { |
| 600 | LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) |
| 601 | << " took " << PrettyDuration(duration_ns); |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | if (compiled_method != nullptr) { |
| 606 | // Count non-relative linker patches. |
| 607 | size_t non_relative_linker_patch_count = 0u; |
| 608 | for (const LinkerPatch& patch : compiled_method->GetPatches()) { |
| 609 | if (!patch.IsPcRelative()) { |
| 610 | ++non_relative_linker_patch_count; |
| 611 | } |
| 612 | } |
| 613 | bool compile_pic = driver->GetCompilerOptions().GetCompilePic(); // Off by default |
| 614 | // When compiling with PIC, there should be zero non-relative linker patches |
| 615 | CHECK(!compile_pic || non_relative_linker_patch_count == 0u); |
| 616 | |
| 617 | driver->AddCompiledMethod(method_ref, compiled_method, non_relative_linker_patch_count); |
| 618 | } |
| 619 | |
| 620 | // Done compiling, delete the verified method to reduce native memory usage. Do not delete in |
| 621 | // optimizing compiler, which may need the verified method again for inlining. |
| 622 | if (driver->GetCompilerKind() != Compiler::kOptimizing) { |
| 623 | driver->GetVerificationResults()->RemoveVerifiedMethod(method_ref); |
| 624 | } |
| 625 | |
| 626 | if (self->IsExceptionPending()) { |
| 627 | ScopedObjectAccess soa(self); |
| 628 | LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" |
| 629 | << self->GetException()->Dump(); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 630 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 631 | } |
| 632 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 633 | void CompilerDriver::CompileOne(Thread* self, ArtMethod* method, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 634 | DCHECK(!Runtime::Current()->IsStarted()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 635 | jobject jclass_loader; |
| 636 | const DexFile* dex_file; |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 637 | uint16_t class_def_idx; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 638 | uint32_t method_idx = method->GetDexMethodIndex(); |
| 639 | uint32_t access_flags = method->GetAccessFlags(); |
| 640 | InvokeType invoke_type = method->GetInvokeType(); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 641 | StackHandleScope<1> hs(self); |
| 642 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(method->GetDexCache())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 643 | { |
| 644 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 645 | ScopedLocalRef<jobject> local_class_loader( |
| 646 | soa.Env(), soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 647 | jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); |
| 648 | // Find the dex_file |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 649 | dex_file = method->GetDexFile(); |
| 650 | class_def_idx = method->GetClassDefIndex(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 651 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 652 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 653 | |
| 654 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 655 | ScopedThreadSuspension sts(self, kNative); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 656 | |
| 657 | std::vector<const DexFile*> dex_files; |
| 658 | dex_files.push_back(dex_file); |
| 659 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 660 | InitializeThreadPools(); |
| 661 | |
| 662 | PreCompile(jclass_loader, dex_files, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 663 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 664 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 665 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 666 | GetDexToDexCompilationLevel(self, |
| 667 | *this, |
| 668 | jclass_loader, |
| 669 | *dex_file, |
| 670 | dex_file->GetClassDef(class_def_idx)); |
| 671 | |
| 672 | CompileMethod(self, |
| 673 | this, |
| 674 | code_item, |
| 675 | access_flags, |
| 676 | invoke_type, |
| 677 | class_def_idx, |
| 678 | method_idx, |
| 679 | jclass_loader, |
| 680 | *dex_file, |
| 681 | dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 682 | true, |
| 683 | dex_cache); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 684 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 685 | FreeThreadPools(); |
| 686 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 687 | self->GetJniEnv()->DeleteGlobalRef(jclass_loader); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 688 | } |
| 689 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 690 | void CompilerDriver::Resolve(jobject class_loader, |
| 691 | const std::vector<const DexFile*>& dex_files, |
| 692 | TimingLogger* timings) { |
| 693 | // Resolution allocates classes and needs to run single-threaded to be deterministic. |
| 694 | bool force_determinism = GetCompilerOptions().IsForceDeterminism(); |
| 695 | ThreadPool* resolve_thread_pool = force_determinism |
| 696 | ? single_thread_pool_.get() |
| 697 | : parallel_thread_pool_.get(); |
| 698 | size_t resolve_thread_count = force_determinism ? 1U : parallel_thread_count_; |
| 699 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 700 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 701 | const DexFile* dex_file = dex_files[i]; |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 702 | CHECK(dex_file != nullptr); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 703 | ResolveDexFile(class_loader, |
| 704 | *dex_file, |
| 705 | dex_files, |
| 706 | resolve_thread_pool, |
| 707 | resolve_thread_count, |
| 708 | timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 709 | } |
| 710 | } |
| 711 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 712 | // Resolve const-strings in the code. Done to have deterministic allocation behavior. Right now |
| 713 | // this is single-threaded for simplicity. |
| 714 | // TODO: Collect the relevant string indices in parallel, then allocate them sequentially in a |
| 715 | // stable order. |
| 716 | |
| 717 | static void ResolveConstStrings(CompilerDriver* driver, |
| 718 | const DexFile& dex_file, |
| 719 | const DexFile::CodeItem* code_item) { |
| 720 | if (code_item == nullptr) { |
| 721 | // Abstract or native method. |
| 722 | return; |
| 723 | } |
| 724 | |
| 725 | const uint16_t* code_ptr = code_item->insns_; |
| 726 | const uint16_t* code_end = code_item->insns_ + code_item->insns_size_in_code_units_; |
| 727 | |
| 728 | while (code_ptr < code_end) { |
| 729 | const Instruction* inst = Instruction::At(code_ptr); |
| 730 | switch (inst->Opcode()) { |
| 731 | case Instruction::CONST_STRING: { |
| 732 | uint32_t string_index = inst->VRegB_21c(); |
| 733 | driver->CanAssumeStringIsPresentInDexCache(dex_file, string_index); |
| 734 | break; |
| 735 | } |
| 736 | case Instruction::CONST_STRING_JUMBO: { |
| 737 | uint32_t string_index = inst->VRegB_31c(); |
| 738 | driver->CanAssumeStringIsPresentInDexCache(dex_file, string_index); |
| 739 | break; |
| 740 | } |
| 741 | |
| 742 | default: |
| 743 | break; |
| 744 | } |
| 745 | |
| 746 | code_ptr += inst->SizeInCodeUnits(); |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | static void ResolveConstStrings(CompilerDriver* driver, |
| 751 | const std::vector<const DexFile*>& dex_files, |
| 752 | TimingLogger* timings) { |
| 753 | for (const DexFile* dex_file : dex_files) { |
| 754 | TimingLogger::ScopedTiming t("Resolve const-string Strings", timings); |
| 755 | |
| 756 | size_t class_def_count = dex_file->NumClassDefs(); |
| 757 | for (size_t class_def_index = 0; class_def_index < class_def_count; ++class_def_index) { |
| 758 | const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); |
| 759 | |
| 760 | const uint8_t* class_data = dex_file->GetClassData(class_def); |
| 761 | if (class_data == nullptr) { |
| 762 | // empty class, probably a marker interface |
| 763 | continue; |
| 764 | } |
| 765 | |
| 766 | ClassDataItemIterator it(*dex_file, class_data); |
| 767 | // Skip fields |
| 768 | while (it.HasNextStaticField()) { |
| 769 | it.Next(); |
| 770 | } |
| 771 | while (it.HasNextInstanceField()) { |
| 772 | it.Next(); |
| 773 | } |
| 774 | |
| 775 | bool compilation_enabled = driver->IsClassToCompile( |
| 776 | dex_file->StringByTypeIdx(class_def.class_idx_)); |
| 777 | if (!compilation_enabled) { |
| 778 | // Compilation is skipped, do not resolve const-string in code of this class. |
| 779 | // TODO: Make sure that inlining honors this. |
| 780 | continue; |
| 781 | } |
| 782 | |
| 783 | // Direct methods. |
| 784 | int64_t previous_direct_method_idx = -1; |
| 785 | while (it.HasNextDirectMethod()) { |
| 786 | uint32_t method_idx = it.GetMemberIndex(); |
| 787 | if (method_idx == previous_direct_method_idx) { |
| 788 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 789 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 790 | it.Next(); |
| 791 | continue; |
| 792 | } |
| 793 | previous_direct_method_idx = method_idx; |
| 794 | ResolveConstStrings(driver, *dex_file, it.GetMethodCodeItem()); |
| 795 | it.Next(); |
| 796 | } |
| 797 | // Virtual methods. |
| 798 | int64_t previous_virtual_method_idx = -1; |
| 799 | while (it.HasNextVirtualMethod()) { |
| 800 | uint32_t method_idx = it.GetMemberIndex(); |
| 801 | if (method_idx == previous_virtual_method_idx) { |
| 802 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 803 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 804 | it.Next(); |
| 805 | continue; |
| 806 | } |
| 807 | previous_virtual_method_idx = method_idx; |
| 808 | ResolveConstStrings(driver, *dex_file, it.GetMethodCodeItem()); |
| 809 | it.Next(); |
| 810 | } |
| 811 | DCHECK(!it.HasNext()); |
| 812 | } |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | inline void CompilerDriver::CheckThreadPools() { |
| 817 | DCHECK(parallel_thread_pool_ != nullptr); |
| 818 | DCHECK(single_thread_pool_ != nullptr); |
| 819 | } |
| 820 | |
| 821 | void CompilerDriver::PreCompile(jobject class_loader, |
| 822 | const std::vector<const DexFile*>& dex_files, |
| 823 | TimingLogger* timings) { |
| 824 | CheckThreadPools(); |
| 825 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 826 | LoadImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 827 | VLOG(compiler) << "LoadImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 828 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 829 | const bool verification_enabled = compiler_options_->IsVerificationEnabled(); |
| 830 | const bool never_verify = compiler_options_->NeverVerify(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 831 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 832 | // We need to resolve for never_verify since it needs to run dex to dex to add the |
| 833 | // RETURN_VOID_NO_BARRIER. |
| 834 | if (never_verify || verification_enabled) { |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 835 | Resolve(class_loader, dex_files, timings); |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 836 | VLOG(compiler) << "Resolve: " << GetMemoryUsageString(false); |
| 837 | } |
| 838 | |
| 839 | if (never_verify) { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 840 | VLOG(compiler) << "Verify none mode specified, skipping verification."; |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 841 | SetVerified(class_loader, dex_files, timings); |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | if (!verification_enabled) { |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 845 | return; |
| 846 | } |
| 847 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 848 | if (GetCompilerOptions().IsForceDeterminism() && IsBootImage()) { |
| 849 | // Resolve strings from const-string. Do this now to have a deterministic image. |
| 850 | ResolveConstStrings(this, dex_files, timings); |
| 851 | VLOG(compiler) << "Resolve const-strings: " << GetMemoryUsageString(false); |
| 852 | } |
| 853 | |
| 854 | Verify(class_loader, dex_files, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 855 | VLOG(compiler) << "Verify: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 856 | |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 857 | if (had_hard_verifier_failure_ && GetCompilerOptions().AbortOnHardVerifierFailure()) { |
| 858 | LOG(FATAL) << "Had a hard failure verifying all classes, and was asked to abort in such " |
| 859 | << "situations. Please check the log."; |
| 860 | } |
| 861 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 862 | InitializeClasses(class_loader, dex_files, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 863 | VLOG(compiler) << "InitializeClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 864 | |
| 865 | UpdateImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 866 | VLOG(compiler) << "UpdateImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 867 | } |
| 868 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 869 | bool CompilerDriver::IsImageClass(const char* descriptor) const { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 870 | if (!IsBootImage()) { |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 871 | // NOTE: Currently only reachable from InitImageMethodVisitor for the app image case. |
| 872 | return true; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 873 | } else { |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 874 | return image_classes_->find(descriptor) != image_classes_->end(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 875 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 876 | } |
| 877 | |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 878 | bool CompilerDriver::IsClassToCompile(const char* descriptor) const { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 879 | if (kRestrictCompilationFiltersToImage && !IsBootImage()) { |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 880 | return true; |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 881 | } |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 882 | |
| 883 | if (classes_to_compile_ == nullptr) { |
| 884 | return true; |
| 885 | } |
| 886 | return classes_to_compile_->find(descriptor) != classes_to_compile_->end(); |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 887 | } |
| 888 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 889 | bool CompilerDriver::IsMethodToCompile(const MethodReference& method_ref) const { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 890 | if (kRestrictCompilationFiltersToImage && !IsBootImage()) { |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 891 | return true; |
| 892 | } |
| 893 | |
| 894 | if (methods_to_compile_ == nullptr) { |
| 895 | return true; |
| 896 | } |
| 897 | |
| 898 | std::string tmp = PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file, true); |
| 899 | return methods_to_compile_->find(tmp.c_str()) != methods_to_compile_->end(); |
| 900 | } |
| 901 | |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 902 | bool CompilerDriver::ShouldCompileBasedOnProfile(const MethodReference& method_ref) const { |
| 903 | if (profile_compilation_info_ == nullptr) { |
| 904 | // If we miss profile information it means that we don't do a profile guided compilation. |
| 905 | // Return true, and let the other filters decide if the method should be compiled. |
| 906 | return true; |
| 907 | } |
| 908 | bool result = profile_compilation_info_->ContainsMethod(method_ref); |
| 909 | |
| 910 | if (kDebugProfileGuidedCompilation) { |
| 911 | LOG(INFO) << "[ProfileGuidedCompilation] " |
| 912 | << (result ? "Compiled" : "Skipped") << " method:" |
| 913 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file, true); |
| 914 | } |
| 915 | return result; |
| 916 | } |
| 917 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 918 | class ResolveCatchBlockExceptionsClassVisitor : public ClassVisitor { |
| 919 | public: |
| 920 | ResolveCatchBlockExceptionsClassVisitor( |
| 921 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve) |
| 922 | : exceptions_to_resolve_(exceptions_to_resolve) {} |
| 923 | |
Mathieu Chartier | 1aa8ec2 | 2016-02-01 10:34:47 -0800 | [diff] [blame] | 924 | virtual bool operator()(mirror::Class* c) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 925 | const auto pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 926 | for (auto& m : c->GetMethods(pointer_size)) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 927 | ResolveExceptionsForMethod(&m, pointer_size); |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 928 | } |
| 929 | return true; |
| 930 | } |
| 931 | |
| 932 | private: |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 933 | void ResolveExceptionsForMethod(ArtMethod* method_handle, size_t pointer_size) |
| 934 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 935 | const DexFile::CodeItem* code_item = method_handle->GetCodeItem(); |
| 936 | if (code_item == nullptr) { |
| 937 | return; // native or abstract method |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 938 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 939 | if (code_item->tries_size_ == 0) { |
| 940 | return; // nothing to process |
| 941 | } |
| 942 | const uint8_t* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); |
| 943 | size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 944 | for (size_t i = 0; i < num_encoded_catch_handlers; i++) { |
| 945 | int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); |
| 946 | bool has_catch_all = false; |
| 947 | if (encoded_catch_handler_size <= 0) { |
| 948 | encoded_catch_handler_size = -encoded_catch_handler_size; |
| 949 | has_catch_all = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 950 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 951 | for (int32_t j = 0; j < encoded_catch_handler_size; j++) { |
| 952 | uint16_t encoded_catch_handler_handlers_type_idx = |
| 953 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 954 | // Add to set of types to resolve if not already in the dex cache resolved types |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 955 | if (!method_handle->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx, |
| 956 | pointer_size)) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 957 | exceptions_to_resolve_.emplace(encoded_catch_handler_handlers_type_idx, |
| 958 | method_handle->GetDexFile()); |
| 959 | } |
| 960 | // ignore address associated with catch handler |
| 961 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 962 | } |
| 963 | if (has_catch_all) { |
| 964 | // ignore catch all address |
| 965 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 966 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 967 | } |
| 968 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 969 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 970 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve_; |
| 971 | }; |
| 972 | |
| 973 | class RecordImageClassesVisitor : public ClassVisitor { |
| 974 | public: |
| 975 | explicit RecordImageClassesVisitor(std::unordered_set<std::string>* image_classes) |
| 976 | : image_classes_(image_classes) {} |
| 977 | |
Mathieu Chartier | 1aa8ec2 | 2016-02-01 10:34:47 -0800 | [diff] [blame] | 978 | bool operator()(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 979 | std::string temp; |
| 980 | image_classes_->insert(klass->GetDescriptor(&temp)); |
| 981 | return true; |
| 982 | } |
| 983 | |
| 984 | private: |
| 985 | std::unordered_set<std::string>* const image_classes_; |
| 986 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 987 | |
| 988 | // Make a list of descriptors for classes to include in the image |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 989 | void CompilerDriver::LoadImageClasses(TimingLogger* timings) { |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 990 | CHECK(timings != nullptr); |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 991 | if (!IsBootImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 992 | return; |
| 993 | } |
| 994 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 995 | TimingLogger::ScopedTiming t("LoadImageClasses", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 996 | // Make a first class to load all classes explicitly listed in the file |
| 997 | Thread* self = Thread::Current(); |
| 998 | ScopedObjectAccess soa(self); |
| 999 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 1000 | CHECK(image_classes_.get() != nullptr); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1001 | for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 1002 | const std::string& descriptor(*it); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1003 | StackHandleScope<1> hs(self); |
| 1004 | Handle<mirror::Class> klass( |
| 1005 | hs.NewHandle(class_linker->FindSystemClass(self, descriptor.c_str()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1006 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1007 | VLOG(compiler) << "Failed to find class " << descriptor; |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 1008 | image_classes_->erase(it++); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1009 | self->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1010 | } else { |
| 1011 | ++it; |
| 1012 | } |
| 1013 | } |
| 1014 | |
| 1015 | // Resolve exception classes referenced by the loaded classes. The catch logic assumes |
| 1016 | // exceptions are resolved by the verifier when there is a catch block in an interested method. |
| 1017 | // Do this here so that exception classes appear to have been specified image classes. |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1018 | std::set<std::pair<uint16_t, const DexFile*>> unresolved_exception_types; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1019 | StackHandleScope<1> hs(self); |
| 1020 | Handle<mirror::Class> java_lang_Throwable( |
| 1021 | hs.NewHandle(class_linker->FindSystemClass(self, "Ljava/lang/Throwable;"))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1022 | do { |
| 1023 | unresolved_exception_types.clear(); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1024 | ResolveCatchBlockExceptionsClassVisitor visitor(unresolved_exception_types); |
| 1025 | class_linker->VisitClasses(&visitor); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1026 | for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { |
| 1027 | uint16_t exception_type_idx = exception_type.first; |
| 1028 | const DexFile* dex_file = exception_type.second; |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1029 | StackHandleScope<2> hs2(self); |
Mathieu Chartier | d57d454 | 2015-10-14 10:55:30 -0700 | [diff] [blame] | 1030 | Handle<mirror::DexCache> dex_cache(hs2.NewHandle(class_linker->RegisterDexFile( |
| 1031 | *dex_file, |
| 1032 | Runtime::Current()->GetLinearAlloc()))); |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1033 | Handle<mirror::Class> klass(hs2.NewHandle( |
Mathieu Chartier | 9865bde | 2015-12-21 09:58:16 -0800 | [diff] [blame] | 1034 | class_linker->ResolveType(*dex_file, |
| 1035 | exception_type_idx, |
| 1036 | dex_cache, |
| 1037 | ScopedNullHandle<mirror::ClassLoader>()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1038 | if (klass.Get() == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1039 | const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); |
| 1040 | const char* descriptor = dex_file->GetTypeDescriptor(type_id); |
| 1041 | LOG(FATAL) << "Failed to resolve class " << descriptor; |
| 1042 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1043 | DCHECK(java_lang_Throwable->IsAssignableFrom(klass.Get())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1044 | } |
| 1045 | // Resolving exceptions may load classes that reference more exceptions, iterate until no |
| 1046 | // more are found |
| 1047 | } while (!unresolved_exception_types.empty()); |
| 1048 | |
| 1049 | // We walk the roots looking for classes so that we'll pick up the |
| 1050 | // above classes plus any classes them depend on such super |
| 1051 | // classes, interfaces, and the required ClassLinker roots. |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1052 | RecordImageClassesVisitor visitor(image_classes_.get()); |
| 1053 | class_linker->VisitClasses(&visitor); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1054 | |
| 1055 | CHECK_NE(image_classes_->size(), 0U); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1056 | } |
| 1057 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1058 | static void MaybeAddToImageClasses(Handle<mirror::Class> c, |
| 1059 | std::unordered_set<std::string>* image_classes) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1060 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1061 | Thread* self = Thread::Current(); |
| 1062 | StackHandleScope<1> hs(self); |
| 1063 | // Make a copy of the handle so that we don't clobber it doing Assign. |
Andreas Gampe | 5a4b8a2 | 2014-09-11 08:30:08 -0700 | [diff] [blame] | 1064 | MutableHandle<mirror::Class> klass(hs.NewHandle(c.Get())); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1065 | std::string temp; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1066 | const size_t pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1067 | while (!klass->IsObjectClass()) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1068 | const char* descriptor = klass->GetDescriptor(&temp); |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1069 | std::pair<std::unordered_set<std::string>::iterator, bool> result = |
| 1070 | image_classes->insert(descriptor); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1071 | if (!result.second) { // Previously inserted. |
| 1072 | break; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1073 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1074 | VLOG(compiler) << "Adding " << descriptor << " to image classes"; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1075 | for (size_t i = 0; i < klass->NumDirectInterfaces(); ++i) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1076 | StackHandleScope<1> hs2(self); |
| 1077 | MaybeAddToImageClasses(hs2.NewHandle(mirror::Class::GetDirectInterface(self, klass, i)), |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1078 | image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1079 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1080 | for (auto& m : c->GetVirtualMethods(pointer_size)) { |
| 1081 | if (m.IsMiranda() || (true)) { |
| 1082 | StackHandleScope<1> hs2(self); |
| 1083 | MaybeAddToImageClasses(hs2.NewHandle(m.GetDeclaringClass()), image_classes); |
| 1084 | } |
| 1085 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1086 | if (klass->IsArrayClass()) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1087 | StackHandleScope<1> hs2(self); |
| 1088 | MaybeAddToImageClasses(hs2.NewHandle(klass->GetComponentType()), image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1089 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1090 | klass.Assign(klass->GetSuperClass()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1091 | } |
| 1092 | } |
| 1093 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1094 | // Keeps all the data for the update together. Also doubles as the reference visitor. |
| 1095 | // Note: we can use object pointers because we suspend all threads. |
| 1096 | class ClinitImageUpdate { |
| 1097 | public: |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1098 | static ClinitImageUpdate* Create(std::unordered_set<std::string>* image_class_descriptors, |
| 1099 | Thread* self, ClassLinker* linker, std::string* error_msg) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1100 | std::unique_ptr<ClinitImageUpdate> res(new ClinitImageUpdate(image_class_descriptors, self, |
| 1101 | linker)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1102 | if (res->dex_cache_class_ == nullptr) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1103 | *error_msg = "Could not find DexCache class."; |
| 1104 | return nullptr; |
| 1105 | } |
| 1106 | |
| 1107 | return res.release(); |
| 1108 | } |
| 1109 | |
| 1110 | ~ClinitImageUpdate() { |
| 1111 | // Allow others to suspend again. |
| 1112 | self_->EndAssertNoThreadSuspension(old_cause_); |
| 1113 | } |
| 1114 | |
| 1115 | // Visitor for VisitReferences. |
| 1116 | void operator()(mirror::Object* object, MemberOffset field_offset, bool /* is_static */) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1117 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1118 | mirror::Object* ref = object->GetFieldObject<mirror::Object>(field_offset); |
| 1119 | if (ref != nullptr) { |
| 1120 | VisitClinitClassesObject(ref); |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | // java.lang.Reference visitor for VisitReferences. |
Mathieu Chartier | da7c650 | 2015-07-23 16:01:26 -0700 | [diff] [blame] | 1125 | void operator()(mirror::Class* klass ATTRIBUTE_UNUSED, mirror::Reference* ref ATTRIBUTE_UNUSED) |
| 1126 | const {} |
| 1127 | |
| 1128 | // Ignore class native roots. |
| 1129 | void VisitRootIfNonNull(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) |
| 1130 | const {} |
| 1131 | void VisitRoot(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) const {} |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1132 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1133 | void Walk() SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1134 | // Use the initial classes as roots for a search. |
| 1135 | for (mirror::Class* klass_root : image_classes_) { |
| 1136 | VisitClinitClassesObject(klass_root); |
| 1137 | } |
| 1138 | } |
| 1139 | |
| 1140 | private: |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1141 | class FindImageClassesVisitor : public ClassVisitor { |
| 1142 | public: |
| 1143 | explicit FindImageClassesVisitor(ClinitImageUpdate* data) : data_(data) {} |
| 1144 | |
Mathieu Chartier | 1aa8ec2 | 2016-02-01 10:34:47 -0800 | [diff] [blame] | 1145 | bool operator()(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1146 | std::string temp; |
| 1147 | const char* name = klass->GetDescriptor(&temp); |
| 1148 | if (data_->image_class_descriptors_->find(name) != data_->image_class_descriptors_->end()) { |
| 1149 | data_->image_classes_.push_back(klass); |
| 1150 | } else { |
| 1151 | // Check whether it is initialized and has a clinit. They must be kept, too. |
| 1152 | if (klass->IsInitialized() && klass->FindClassInitializer( |
| 1153 | Runtime::Current()->GetClassLinker()->GetImagePointerSize()) != nullptr) { |
| 1154 | data_->image_classes_.push_back(klass); |
| 1155 | } |
| 1156 | } |
| 1157 | return true; |
| 1158 | } |
| 1159 | |
| 1160 | private: |
| 1161 | ClinitImageUpdate* const data_; |
| 1162 | }; |
| 1163 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1164 | ClinitImageUpdate(std::unordered_set<std::string>* image_class_descriptors, Thread* self, |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1165 | ClassLinker* linker) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1166 | SHARED_REQUIRES(Locks::mutator_lock_) : |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1167 | image_class_descriptors_(image_class_descriptors), self_(self) { |
| 1168 | CHECK(linker != nullptr); |
| 1169 | CHECK(image_class_descriptors != nullptr); |
| 1170 | |
| 1171 | // Make sure nobody interferes with us. |
| 1172 | old_cause_ = self->StartAssertNoThreadSuspension("Boot image closure"); |
| 1173 | |
| 1174 | // Find the interesting classes. |
Andreas Gampe | dc8b63c | 2014-12-02 14:39:52 -0800 | [diff] [blame] | 1175 | dex_cache_class_ = linker->LookupClass(self, "Ljava/lang/DexCache;", |
| 1176 | ComputeModifiedUtf8Hash("Ljava/lang/DexCache;"), nullptr); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1177 | |
| 1178 | // Find all the already-marked classes. |
| 1179 | WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1180 | FindImageClassesVisitor visitor(this); |
| 1181 | linker->VisitClasses(&visitor); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1182 | } |
| 1183 | |
| 1184 | void VisitClinitClassesObject(mirror::Object* object) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1185 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1186 | DCHECK(object != nullptr); |
| 1187 | if (marked_objects_.find(object) != marked_objects_.end()) { |
| 1188 | // Already processed. |
| 1189 | return; |
| 1190 | } |
| 1191 | |
| 1192 | // Mark it. |
| 1193 | marked_objects_.insert(object); |
| 1194 | |
| 1195 | if (object->IsClass()) { |
| 1196 | // If it is a class, add it. |
| 1197 | StackHandleScope<1> hs(self_); |
| 1198 | MaybeAddToImageClasses(hs.NewHandle(object->AsClass()), image_class_descriptors_); |
| 1199 | } else { |
| 1200 | // Else visit the object's class. |
| 1201 | VisitClinitClassesObject(object->GetClass()); |
| 1202 | } |
| 1203 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1204 | // If it is not a DexCache, visit all references. |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1205 | mirror::Class* klass = object->GetClass(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1206 | if (klass != dex_cache_class_) { |
Mathieu Chartier | 059ef3d | 2015-08-18 13:54:21 -0700 | [diff] [blame] | 1207 | object->VisitReferences(*this, *this); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1208 | } |
| 1209 | } |
| 1210 | |
| 1211 | mutable std::unordered_set<mirror::Object*> marked_objects_; |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1212 | std::unordered_set<std::string>* const image_class_descriptors_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1213 | std::vector<mirror::Class*> image_classes_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1214 | const mirror::Class* dex_cache_class_; |
| 1215 | Thread* const self_; |
| 1216 | const char* old_cause_; |
| 1217 | |
| 1218 | DISALLOW_COPY_AND_ASSIGN(ClinitImageUpdate); |
| 1219 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1220 | |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1221 | void CompilerDriver::UpdateImageClasses(TimingLogger* timings) { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1222 | if (IsBootImage()) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1223 | TimingLogger::ScopedTiming t("UpdateImageClasses", timings); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1224 | |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1225 | Runtime* runtime = Runtime::Current(); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1226 | |
| 1227 | // Suspend all threads. |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1228 | ScopedSuspendAll ssa(__FUNCTION__); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1229 | |
| 1230 | std::string error_msg; |
| 1231 | std::unique_ptr<ClinitImageUpdate> update(ClinitImageUpdate::Create(image_classes_.get(), |
| 1232 | Thread::Current(), |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1233 | runtime->GetClassLinker(), |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1234 | &error_msg)); |
| 1235 | CHECK(update.get() != nullptr) << error_msg; // TODO: Soft failure? |
| 1236 | |
| 1237 | // Do the marking. |
| 1238 | update->Walk(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1239 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1240 | } |
| 1241 | |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 1242 | bool CompilerDriver::CanAssumeClassIsLoaded(mirror::Class* klass) { |
| 1243 | Runtime* runtime = Runtime::Current(); |
| 1244 | if (!runtime->IsAotCompiler()) { |
| 1245 | DCHECK(runtime->UseJit()); |
| 1246 | // Having the klass reference here implies that the klass is already loaded. |
| 1247 | return true; |
| 1248 | } |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1249 | if (!IsBootImage()) { |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 1250 | // Assume loaded only if klass is in the boot image. App classes cannot be assumed |
| 1251 | // loaded because we don't even know what class loader will be used to load them. |
| 1252 | bool class_in_image = runtime->GetHeap()->FindSpaceFromObject(klass, false)->IsImageSpace(); |
| 1253 | return class_in_image; |
| 1254 | } |
| 1255 | std::string temp; |
| 1256 | const char* descriptor = klass->GetDescriptor(&temp); |
| 1257 | return IsImageClass(descriptor); |
| 1258 | } |
| 1259 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1260 | bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { |
Nicolas Geoffray | 42e372e | 2015-11-24 15:48:56 +0000 | [diff] [blame] | 1261 | bool result = false; |
| 1262 | if ((IsBootImage() && |
| 1263 | IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) || |
| 1264 | Runtime::Current()->UseJit()) { |
| 1265 | ScopedObjectAccess soa(Thread::Current()); |
| 1266 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1267 | soa.Self(), dex_file, false); |
| 1268 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1269 | result = (resolved_class != nullptr); |
| 1270 | } |
| 1271 | |
| 1272 | if (result) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1273 | stats_->TypeInDexCache(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1274 | } else { |
| 1275 | stats_->TypeNotInDexCache(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1276 | } |
Nicolas Geoffray | 42e372e | 2015-11-24 15:48:56 +0000 | [diff] [blame] | 1277 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1278 | } |
| 1279 | |
| 1280 | bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, |
| 1281 | uint32_t string_idx) { |
| 1282 | // See also Compiler::ResolveDexFile |
| 1283 | |
| 1284 | bool result = false; |
Nicolas Geoffray | 917d016 | 2015-11-24 18:25:35 +0000 | [diff] [blame] | 1285 | if (IsBootImage() || Runtime::Current()->UseJit()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1286 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1287 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1288 | ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| 1289 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 1290 | soa.Self(), dex_file, false))); |
Nicolas Geoffray | 917d016 | 2015-11-24 18:25:35 +0000 | [diff] [blame] | 1291 | if (IsBootImage()) { |
| 1292 | // We resolve all const-string strings when building for the image. |
| 1293 | class_linker->ResolveString(dex_file, string_idx, dex_cache); |
| 1294 | result = true; |
| 1295 | } else { |
| 1296 | // Just check whether the dex cache already has the string. |
| 1297 | DCHECK(Runtime::Current()->UseJit()); |
| 1298 | result = (dex_cache->GetResolvedString(string_idx) != nullptr); |
| 1299 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1300 | } |
| 1301 | if (result) { |
| 1302 | stats_->StringInDexCache(); |
| 1303 | } else { |
| 1304 | stats_->StringNotInDexCache(); |
| 1305 | } |
| 1306 | return result; |
| 1307 | } |
| 1308 | |
| 1309 | bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, |
| 1310 | uint32_t type_idx, |
| 1311 | bool* type_known_final, bool* type_known_abstract, |
| 1312 | bool* equals_referrers_class) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1313 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1314 | *type_known_final = false; |
| 1315 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1316 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1317 | *type_known_abstract = false; |
| 1318 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1319 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1320 | *equals_referrers_class = false; |
| 1321 | } |
| 1322 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1323 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1324 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1325 | // Get type from dex cache assuming it was populated by the verifier |
| 1326 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1327 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1328 | stats_->TypeNeedsAccessCheck(); |
| 1329 | return false; // Unknown class needs access checks. |
| 1330 | } |
| 1331 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1332 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1333 | *equals_referrers_class = (method_id.class_idx_ == type_idx); |
| 1334 | } |
David Brazdil | 38f64d3 | 2016-01-18 17:13:41 +0000 | [diff] [blame] | 1335 | bool is_accessible = resolved_class->IsPublic(); // Public classes are always accessible. |
| 1336 | if (!is_accessible) { |
| 1337 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
| 1338 | if (referrer_class == nullptr) { |
| 1339 | stats_->TypeNeedsAccessCheck(); |
| 1340 | return false; // Incomplete referrer knowledge needs access check. |
| 1341 | } |
| 1342 | // Perform access check, will return true if access is ok or false if we're going to have to |
| 1343 | // check this at runtime (for example for class loaders). |
| 1344 | is_accessible = referrer_class->CanAccess(resolved_class); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1345 | } |
David Brazdil | 38f64d3 | 2016-01-18 17:13:41 +0000 | [diff] [blame] | 1346 | if (is_accessible) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1347 | stats_->TypeDoesntNeedAccessCheck(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1348 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1349 | *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); |
| 1350 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1351 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1352 | *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); |
| 1353 | } |
| 1354 | } else { |
| 1355 | stats_->TypeNeedsAccessCheck(); |
| 1356 | } |
David Brazdil | 38f64d3 | 2016-01-18 17:13:41 +0000 | [diff] [blame] | 1357 | return is_accessible; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1358 | } |
| 1359 | |
| 1360 | bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, |
| 1361 | const DexFile& dex_file, |
Mingyao Yang | fb8464a | 2015-11-02 10:56:59 -0800 | [diff] [blame] | 1362 | uint32_t type_idx, |
| 1363 | bool* finalizable) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1364 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1365 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1366 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1367 | // Get type from dex cache assuming it was populated by the verifier. |
| 1368 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1369 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1370 | stats_->TypeNeedsAccessCheck(); |
Mingyao Yang | fb8464a | 2015-11-02 10:56:59 -0800 | [diff] [blame] | 1371 | // Be conservative. |
| 1372 | *finalizable = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1373 | return false; // Unknown class needs access checks. |
| 1374 | } |
Mingyao Yang | fb8464a | 2015-11-02 10:56:59 -0800 | [diff] [blame] | 1375 | *finalizable = resolved_class->IsFinalizable(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1376 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
David Brazdil | 38f64d3 | 2016-01-18 17:13:41 +0000 | [diff] [blame] | 1377 | bool is_accessible = resolved_class->IsPublic(); // Public classes are always accessible. |
| 1378 | if (!is_accessible) { |
| 1379 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
| 1380 | if (referrer_class == nullptr) { |
| 1381 | stats_->TypeNeedsAccessCheck(); |
| 1382 | return false; // Incomplete referrer knowledge needs access check. |
| 1383 | } |
| 1384 | // Perform access and instantiable checks, will return true if access is ok or false if we're |
| 1385 | // going to have to check this at runtime (for example for class loaders). |
| 1386 | is_accessible = referrer_class->CanAccess(resolved_class); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1387 | } |
David Brazdil | 38f64d3 | 2016-01-18 17:13:41 +0000 | [diff] [blame] | 1388 | bool result = is_accessible && resolved_class->IsInstantiable(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1389 | if (result) { |
| 1390 | stats_->TypeDoesntNeedAccessCheck(); |
| 1391 | } else { |
| 1392 | stats_->TypeNeedsAccessCheck(); |
| 1393 | } |
| 1394 | return result; |
| 1395 | } |
| 1396 | |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1397 | bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, |
| 1398 | bool* is_type_initialized, bool* use_direct_type_ptr, |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1399 | uintptr_t* direct_type_ptr, bool* out_is_finalizable) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1400 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1401 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1402 | mirror::DexCache* dex_cache = runtime->GetClassLinker()->FindDexCache( |
| 1403 | soa.Self(), dex_file, false); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1404 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1405 | if (resolved_class == nullptr) { |
| 1406 | return false; |
| 1407 | } |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1408 | if (GetCompilerOptions().GetCompilePic()) { |
| 1409 | // Do not allow a direct class pointer to be used when compiling for position-independent |
| 1410 | return false; |
| 1411 | } |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1412 | *out_is_finalizable = resolved_class->IsFinalizable(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1413 | gc::Heap* heap = runtime->GetHeap(); |
| 1414 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1415 | const bool support_boot_image_fixup = GetSupportBootImageFixup(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1416 | if (compiling_boot) { |
| 1417 | // boot -> boot class pointers. |
| 1418 | // True if the class is in the image at boot compiling time. |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1419 | const bool is_image_class = IsBootImage() && IsImageClass( |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1420 | dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); |
| 1421 | // True if pc relative load works. |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1422 | if (is_image_class && support_boot_image_fixup) { |
| 1423 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1424 | *use_direct_type_ptr = false; |
| 1425 | *direct_type_ptr = 0; |
| 1426 | return true; |
| 1427 | } else { |
| 1428 | return false; |
| 1429 | } |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1430 | } else if (runtime->UseJit() && !heap->IsMovableObject(resolved_class)) { |
| 1431 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1432 | // If the class may move around, then don't embed it as a direct pointer. |
| 1433 | *use_direct_type_ptr = true; |
| 1434 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1435 | return true; |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1436 | } else { |
| 1437 | // True if the class is in the image at app compiling time. |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1438 | const bool class_in_image = heap->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1439 | if (class_in_image && support_boot_image_fixup) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1440 | // boot -> app class pointers. |
| 1441 | *is_type_initialized = resolved_class->IsInitialized(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1442 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1443 | *use_direct_type_ptr = !GetCompilerOptions().GetIncludePatchInformation(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1444 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1445 | return true; |
| 1446 | } else { |
| 1447 | // app -> app class pointers. |
| 1448 | // Give up because app does not have an image and class |
| 1449 | // isn't created at compile time. TODO: implement this |
| 1450 | // if/when each app gets an image. |
| 1451 | return false; |
| 1452 | } |
| 1453 | } |
| 1454 | } |
| 1455 | |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1456 | bool CompilerDriver::CanEmbedReferenceTypeInCode(ClassReference* ref, |
| 1457 | bool* use_direct_ptr, |
| 1458 | uintptr_t* direct_type_ptr) { |
| 1459 | CHECK(ref != nullptr); |
| 1460 | CHECK(use_direct_ptr != nullptr); |
| 1461 | CHECK(direct_type_ptr != nullptr); |
| 1462 | |
| 1463 | ScopedObjectAccess soa(Thread::Current()); |
| 1464 | mirror::Class* reference_class = mirror::Reference::GetJavaLangRefReference(); |
Andreas Gampe | 928f72b | 2014-09-09 19:53:48 -0700 | [diff] [blame] | 1465 | bool is_initialized = false; |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1466 | bool unused_finalizable; |
| 1467 | // Make sure we have a finished Reference class object before attempting to use it. |
| 1468 | if (!CanEmbedTypeInCode(*reference_class->GetDexCache()->GetDexFile(), |
| 1469 | reference_class->GetDexTypeIndex(), &is_initialized, |
| 1470 | use_direct_ptr, direct_type_ptr, &unused_finalizable) || |
| 1471 | !is_initialized) { |
| 1472 | return false; |
| 1473 | } |
| 1474 | ref->first = &reference_class->GetDexFile(); |
| 1475 | ref->second = reference_class->GetDexClassDefIndex(); |
| 1476 | return true; |
| 1477 | } |
| 1478 | |
| 1479 | uint32_t CompilerDriver::GetReferenceSlowFlagOffset() const { |
| 1480 | ScopedObjectAccess soa(Thread::Current()); |
| 1481 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1482 | DCHECK(klass->IsInitialized()); |
| 1483 | return klass->GetSlowPathFlagOffset().Uint32Value(); |
| 1484 | } |
| 1485 | |
| 1486 | uint32_t CompilerDriver::GetReferenceDisableFlagOffset() const { |
| 1487 | ScopedObjectAccess soa(Thread::Current()); |
| 1488 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1489 | DCHECK(klass->IsInitialized()); |
| 1490 | return klass->GetDisableIntrinsicFlagOffset().Uint32Value(); |
| 1491 | } |
| 1492 | |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1493 | DexCacheArraysLayout CompilerDriver::GetDexCacheArraysLayout(const DexFile* dex_file) { |
Vladimir Marko | d1eaf0d | 2015-10-29 12:18:29 +0000 | [diff] [blame] | 1494 | return ContainsElement(GetDexFilesForOatFile(), dex_file) |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1495 | ? DexCacheArraysLayout(GetInstructionSetPointerSize(instruction_set_), dex_file) |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1496 | : DexCacheArraysLayout(); |
| 1497 | } |
| 1498 | |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1499 | void CompilerDriver::ProcessedInstanceField(bool resolved) { |
| 1500 | if (!resolved) { |
| 1501 | stats_->UnresolvedInstanceField(); |
| 1502 | } else { |
| 1503 | stats_->ResolvedInstanceField(); |
| 1504 | } |
| 1505 | } |
| 1506 | |
| 1507 | void CompilerDriver::ProcessedStaticField(bool resolved, bool local) { |
| 1508 | if (!resolved) { |
| 1509 | stats_->UnresolvedStaticField(); |
| 1510 | } else if (local) { |
| 1511 | stats_->ResolvedLocalStaticField(); |
| 1512 | } else { |
| 1513 | stats_->ResolvedStaticField(); |
| 1514 | } |
| 1515 | } |
| 1516 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1517 | void CompilerDriver::ProcessedInvoke(InvokeType invoke_type, int flags) { |
| 1518 | stats_->ProcessedInvoke(invoke_type, flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1519 | } |
| 1520 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1521 | ArtField* CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, |
| 1522 | const DexCompilationUnit* mUnit, bool is_put, |
| 1523 | const ScopedObjectAccess& soa) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1524 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1525 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1526 | mirror::Class* referrer_class; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1527 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1528 | { |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1529 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1530 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1531 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1532 | resolved_field = ResolveField(soa, dex_cache, class_loader_handle, mUnit, field_idx, false); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1533 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1534 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader_handle, mUnit) : nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1535 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1536 | bool can_link = false; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1537 | if (resolved_field != nullptr && referrer_class != nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1538 | std::pair<bool, bool> fast_path = IsFastInstanceField( |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1539 | dex_cache.Get(), referrer_class, resolved_field, field_idx); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1540 | can_link = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1541 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1542 | ProcessedInstanceField(can_link); |
| 1543 | return can_link ? resolved_field : nullptr; |
| 1544 | } |
| 1545 | |
| 1546 | bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
| 1547 | bool is_put, MemberOffset* field_offset, |
| 1548 | bool* is_volatile) { |
| 1549 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1550 | ArtField* resolved_field = ComputeInstanceFieldInfo(field_idx, mUnit, is_put, soa); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1551 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1552 | if (resolved_field == nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1553 | // Conservative defaults. |
| 1554 | *is_volatile = true; |
| 1555 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1556 | return false; |
| 1557 | } else { |
| 1558 | *is_volatile = resolved_field->IsVolatile(); |
| 1559 | *field_offset = resolved_field->GetOffset(); |
| 1560 | return true; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1561 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1562 | } |
| 1563 | |
| 1564 | bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1565 | bool is_put, MemberOffset* field_offset, |
| 1566 | uint32_t* storage_index, bool* is_referrers_class, |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1567 | bool* is_volatile, bool* is_initialized, |
| 1568 | Primitive::Type* type) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1569 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1570 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1571 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1572 | mirror::Class* referrer_class; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1573 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1574 | { |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1575 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1576 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1577 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1578 | resolved_field = |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1579 | ResolveField(soa, dex_cache, class_loader_handle, mUnit, field_idx, true); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1580 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1581 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader_handle, mUnit) : nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1582 | } |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1583 | bool result = false; |
| 1584 | if (resolved_field != nullptr && referrer_class != nullptr) { |
| 1585 | *is_volatile = IsFieldVolatile(resolved_field); |
| 1586 | std::pair<bool, bool> fast_path = IsFastStaticField( |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1587 | dex_cache.Get(), referrer_class, resolved_field, field_idx, storage_index); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1588 | result = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1589 | } |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1590 | if (result) { |
| 1591 | *field_offset = GetFieldOffset(resolved_field); |
| 1592 | *is_referrers_class = IsStaticFieldInReferrerClass(referrer_class, resolved_field); |
| 1593 | // *is_referrers_class == true implies no worrying about class initialization. |
| 1594 | *is_initialized = (*is_referrers_class) || |
| 1595 | (IsStaticFieldsClassInitialized(referrer_class, resolved_field) && |
| 1596 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index)); |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1597 | *type = resolved_field->GetTypeAsPrimitiveType(); |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1598 | } else { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1599 | // Conservative defaults. |
| 1600 | *is_volatile = true; |
| 1601 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
| 1602 | *storage_index = -1; |
| 1603 | *is_referrers_class = false; |
| 1604 | *is_initialized = false; |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1605 | *type = Primitive::kPrimVoid; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1606 | } |
| 1607 | ProcessedStaticField(result, *is_referrers_class); |
| 1608 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1609 | } |
| 1610 | |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1611 | void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, |
| 1612 | bool no_guarantee_of_dex_cache_entry, |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1613 | const mirror::Class* referrer_class, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1614 | ArtMethod* method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1615 | int* stats_flags, |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1616 | MethodReference* target_method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1617 | uintptr_t* direct_code, |
| 1618 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1619 | // For direct and static methods compute possible direct_code and direct_method values, ie |
| 1620 | // an address for the Method* being invoked and an address of the code for that Method*. |
| 1621 | // For interface calls compute a value for direct_method that is the interface method being |
| 1622 | // invoked, so this can be passed to the out-of-line runtime support code. |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1623 | *direct_code = 0; |
| 1624 | *direct_method = 0; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1625 | Runtime* const runtime = Runtime::Current(); |
| 1626 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1627 | auto* cl = runtime->GetClassLinker(); |
| 1628 | const auto pointer_size = cl->GetImagePointerSize(); |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1629 | bool use_dex_cache = GetCompilerOptions().GetCompilePic(); // Off by default |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1630 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1631 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1632 | const bool force_relocations = (compiling_boot || |
| 1633 | GetCompilerOptions().GetIncludePatchInformation()); |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1634 | if (sharp_type != kStatic && sharp_type != kDirect) { |
| 1635 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1636 | } |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1637 | // TODO: support patching on all architectures. |
| 1638 | use_dex_cache = use_dex_cache || (force_relocations && !support_boot_image_fixup_); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1639 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
| 1640 | bool method_code_in_boot = declaring_class->GetClassLoader() == nullptr; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1641 | if (!use_dex_cache) { |
| 1642 | if (!method_code_in_boot) { |
| 1643 | use_dex_cache = true; |
| 1644 | } else { |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1645 | bool has_clinit_trampoline = |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1646 | method->IsStatic() && !declaring_class->IsInitialized(); |
| 1647 | if (has_clinit_trampoline && declaring_class != referrer_class) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1648 | // Ensure we run the clinit trampoline unless we are invoking a static method in the same |
| 1649 | // class. |
| 1650 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1651 | } |
| 1652 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1653 | } |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1654 | if (runtime->UseJit()) { |
| 1655 | // If we are the JIT, then don't allow a direct call to the interpreter bridge since this will |
| 1656 | // never be updated even after we compile the method. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1657 | if (cl->IsQuickToInterpreterBridge( |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1658 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method)))) { |
| 1659 | use_dex_cache = true; |
| 1660 | } |
| 1661 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1662 | if (method_code_in_boot) { |
| 1663 | *stats_flags |= kFlagDirectCallToBoot | kFlagDirectMethodToBoot; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1664 | } |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1665 | if (!use_dex_cache && force_relocations) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1666 | bool is_in_image; |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1667 | if (IsBootImage()) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1668 | is_in_image = IsImageClass(method->GetDeclaringClassDescriptor()); |
| 1669 | } else { |
| 1670 | is_in_image = instruction_set_ != kX86 && instruction_set_ != kX86_64 && |
Vladimir Marko | c08ab29 | 2015-06-22 14:35:42 +0100 | [diff] [blame] | 1671 | heap->FindSpaceFromObject(method->GetDeclaringClass(), false)->IsImageSpace() && |
| 1672 | !cl->IsQuickToInterpreterBridge( |
| 1673 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method))); |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1674 | } |
| 1675 | if (!is_in_image) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1676 | // We can only branch directly to Methods that are resolved in the DexCache. |
| 1677 | // Otherwise we won't invoke the resolution trampoline. |
| 1678 | use_dex_cache = true; |
| 1679 | } |
| 1680 | } |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 1681 | if (!use_dex_cache && IsBootImage()) { |
| 1682 | if (!AreInSameOatFile(&(const_cast<mirror::Class*>(referrer_class)->GetDexFile()), |
| 1683 | &declaring_class->GetDexFile())) { |
| 1684 | use_dex_cache = true; |
| 1685 | } |
| 1686 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1687 | // The method is defined not within this dex file. We need a dex cache slot within the current |
| 1688 | // dex file or direct pointers. |
| 1689 | bool must_use_direct_pointers = false; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1690 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
| 1691 | if (target_method->dex_file == dex_cache->GetDexFile() && |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1692 | !(runtime->UseJit() && dex_cache->GetResolvedMethod( |
| 1693 | method->GetDexMethodIndex(), pointer_size) == nullptr)) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1694 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1695 | } else { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1696 | if (no_guarantee_of_dex_cache_entry) { |
| 1697 | // See if the method is also declared in this dex cache. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1698 | uint32_t dex_method_idx = method->FindDexMethodIndexInOtherDexFile( |
| 1699 | *target_method->dex_file, target_method->dex_method_index); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1700 | if (dex_method_idx != DexFile::kDexNoIndex) { |
| 1701 | target_method->dex_method_index = dex_method_idx; |
| 1702 | } else { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1703 | if (force_relocations && !use_dex_cache) { |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1704 | target_method->dex_method_index = method->GetDexMethodIndex(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1705 | target_method->dex_file = dex_cache->GetDexFile(); |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1706 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1707 | must_use_direct_pointers = true; |
| 1708 | } |
| 1709 | } |
| 1710 | } |
| 1711 | if (use_dex_cache) { |
| 1712 | if (must_use_direct_pointers) { |
| 1713 | // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct |
| 1714 | // pointers are required as the dex cache lacks an appropriate entry. |
| 1715 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1716 | } else { |
| 1717 | *type = sharp_type; |
| 1718 | } |
| 1719 | } else { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1720 | bool method_in_image = false; |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 1721 | const std::vector<gc::space::ImageSpace*> image_spaces = heap->GetBootImageSpaces(); |
| 1722 | for (gc::space::ImageSpace* image_space : image_spaces) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1723 | const auto& method_section = image_space->GetImageHeader().GetMethodsSection(); |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 1724 | if (method_section.Contains(reinterpret_cast<uint8_t*>(method) - image_space->Begin())) { |
| 1725 | method_in_image = true; |
| 1726 | break; |
| 1727 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1728 | } |
Mathieu Chartier | 6ced409 | 2015-02-27 16:10:48 -0800 | [diff] [blame] | 1729 | if (method_in_image || compiling_boot || runtime->UseJit()) { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1730 | // We know we must be able to get to the method in the image, so use that pointer. |
Mathieu Chartier | 6ced409 | 2015-02-27 16:10:48 -0800 | [diff] [blame] | 1731 | // In the case where we are the JIT, we can always use direct pointers since we know where |
| 1732 | // the method and its code are / will be. We don't sharpen to interpreter bridge since we |
| 1733 | // check IsQuickToInterpreterBridge above. |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1734 | CHECK(!method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1735 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1736 | *direct_method = force_relocations ? -1 : reinterpret_cast<uintptr_t>(method); |
| 1737 | *direct_code = force_relocations ? -1 : compiler_->GetEntryPointOf(method); |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1738 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1739 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1740 | } else if (!must_use_direct_pointers) { |
| 1741 | // Set the code and rely on the dex cache for the method. |
| 1742 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1743 | if (force_relocations) { |
| 1744 | *direct_code = -1; |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1745 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1746 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1747 | } else { |
| 1748 | *direct_code = compiler_->GetEntryPointOf(method); |
| 1749 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1750 | } else { |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1751 | // Direct pointers were required but none were available. |
| 1752 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1753 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1754 | } |
| 1755 | } |
| 1756 | |
| 1757 | bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1758 | bool update_stats, bool enable_devirtualization, |
| 1759 | InvokeType* invoke_type, MethodReference* target_method, |
| 1760 | int* vtable_idx, uintptr_t* direct_code, |
| 1761 | uintptr_t* direct_method) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1762 | InvokeType orig_invoke_type = *invoke_type; |
| 1763 | int stats_flags = 0; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1764 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1765 | // Try to resolve the method and compiling method's class. |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1766 | StackHandleScope<2> hs(soa.Self()); |
| 1767 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1768 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 1769 | soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1770 | uint32_t method_idx = target_method->dex_method_index; |
| 1771 | ArtMethod* resolved_method = ResolveMethod( |
| 1772 | soa, dex_cache, class_loader, mUnit, method_idx, orig_invoke_type); |
| 1773 | auto h_referrer_class = hs.NewHandle(resolved_method != nullptr ? |
| 1774 | ResolveCompilingMethodsClass(soa, dex_cache, class_loader, mUnit) : nullptr); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1775 | bool result = false; |
| 1776 | if (resolved_method != nullptr) { |
| 1777 | *vtable_idx = GetResolvedMethodVTableIndex(resolved_method, orig_invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1778 | |
Nicolas Geoffray | e53798a | 2014-12-01 10:31:54 +0000 | [diff] [blame] | 1779 | if (enable_devirtualization && mUnit->GetVerifiedMethod() != nullptr) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1780 | const MethodReference* devirt_target = mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); |
| 1781 | |
| 1782 | stats_flags = IsFastInvoke( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1783 | soa, dex_cache, class_loader, mUnit, h_referrer_class.Get(), resolved_method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1784 | invoke_type, target_method, devirt_target, direct_code, direct_method); |
| 1785 | result = stats_flags != 0; |
| 1786 | } else { |
| 1787 | // Devirtualization not enabled. Inline IsFastInvoke(), dropping the devirtualization parts. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1788 | if (UNLIKELY(h_referrer_class.Get() == nullptr) || |
| 1789 | UNLIKELY(!h_referrer_class->CanAccessResolvedMethod(resolved_method->GetDeclaringClass(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1790 | resolved_method, dex_cache.Get(), |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1791 | target_method->dex_method_index)) || |
| 1792 | *invoke_type == kSuper) { |
| 1793 | // Slow path. (Without devirtualization, all super calls go slow path as well.) |
| 1794 | } else { |
| 1795 | // Sharpening failed so generate a regular resolved method dispatch. |
| 1796 | stats_flags = kFlagMethodResolved; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1797 | GetCodeAndMethodForDirectCall( |
| 1798 | invoke_type, *invoke_type, false, h_referrer_class.Get(), resolved_method, &stats_flags, |
| 1799 | target_method, direct_code, direct_method); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1800 | result = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1801 | } |
| 1802 | } |
| 1803 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1804 | if (!result) { |
| 1805 | // Conservative defaults. |
| 1806 | *vtable_idx = -1; |
| 1807 | *direct_code = 0u; |
| 1808 | *direct_method = 0u; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1809 | } |
| 1810 | if (update_stats) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1811 | ProcessedInvoke(orig_invoke_type, stats_flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1812 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1813 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1814 | } |
| 1815 | |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1816 | const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, |
| 1817 | uint32_t method_idx) const { |
| 1818 | MethodReference ref(dex_file, method_idx); |
| 1819 | return verification_results_->GetVerifiedMethod(ref); |
| 1820 | } |
| 1821 | |
| 1822 | bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1823 | if (!compiler_options_->IsVerificationEnabled()) { |
| 1824 | // If we didn't verify, every cast has to be treated as non-safe. |
| 1825 | return false; |
| 1826 | } |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1827 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
| 1828 | bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1829 | if (result) { |
| 1830 | stats_->SafeCast(); |
| 1831 | } else { |
| 1832 | stats_->NotASafeCast(); |
| 1833 | } |
| 1834 | return result; |
| 1835 | } |
| 1836 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1837 | class CompilationVisitor { |
| 1838 | public: |
| 1839 | virtual ~CompilationVisitor() {} |
| 1840 | virtual void Visit(size_t index) = 0; |
| 1841 | }; |
| 1842 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1843 | class ParallelCompilationManager { |
| 1844 | public: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1845 | ParallelCompilationManager(ClassLinker* class_linker, |
| 1846 | jobject class_loader, |
| 1847 | CompilerDriver* compiler, |
| 1848 | const DexFile* dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1849 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1850 | ThreadPool* thread_pool) |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1851 | : index_(0), |
| 1852 | class_linker_(class_linker), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1853 | class_loader_(class_loader), |
| 1854 | compiler_(compiler), |
| 1855 | dex_file_(dex_file), |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1856 | dex_files_(dex_files), |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1857 | thread_pool_(thread_pool) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1858 | |
| 1859 | ClassLinker* GetClassLinker() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1860 | CHECK(class_linker_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1861 | return class_linker_; |
| 1862 | } |
| 1863 | |
| 1864 | jobject GetClassLoader() const { |
| 1865 | return class_loader_; |
| 1866 | } |
| 1867 | |
| 1868 | CompilerDriver* GetCompiler() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1869 | CHECK(compiler_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1870 | return compiler_; |
| 1871 | } |
| 1872 | |
| 1873 | const DexFile* GetDexFile() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1874 | CHECK(dex_file_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1875 | return dex_file_; |
| 1876 | } |
| 1877 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1878 | const std::vector<const DexFile*>& GetDexFiles() const { |
| 1879 | return dex_files_; |
| 1880 | } |
| 1881 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1882 | void ForAll(size_t begin, size_t end, CompilationVisitor* visitor, size_t work_units) |
| 1883 | REQUIRES(!*Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1884 | Thread* self = Thread::Current(); |
| 1885 | self->AssertNoPendingException(); |
| 1886 | CHECK_GT(work_units, 0U); |
| 1887 | |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1888 | index_.StoreRelaxed(begin); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1889 | for (size_t i = 0; i < work_units; ++i) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1890 | thread_pool_->AddTask(self, new ForAllClosure(this, end, visitor)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1891 | } |
| 1892 | thread_pool_->StartWorkers(self); |
| 1893 | |
| 1894 | // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker |
| 1895 | // thread destructor's called below perform join). |
| 1896 | CHECK_NE(self->GetState(), kRunnable); |
| 1897 | |
| 1898 | // Wait for all the worker threads to finish. |
| 1899 | thread_pool_->Wait(self, true, false); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 1900 | |
| 1901 | // And stop the workers accepting jobs. |
| 1902 | thread_pool_->StopWorkers(self); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1903 | } |
| 1904 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1905 | size_t NextIndex() { |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1906 | return index_.FetchAndAddSequentiallyConsistent(1); |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1907 | } |
| 1908 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1909 | private: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1910 | class ForAllClosure : public Task { |
| 1911 | public: |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1912 | ForAllClosure(ParallelCompilationManager* manager, size_t end, CompilationVisitor* visitor) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1913 | : manager_(manager), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1914 | end_(end), |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1915 | visitor_(visitor) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1916 | |
| 1917 | virtual void Run(Thread* self) { |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1918 | while (true) { |
| 1919 | const size_t index = manager_->NextIndex(); |
| 1920 | if (UNLIKELY(index >= end_)) { |
| 1921 | break; |
| 1922 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1923 | visitor_->Visit(index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1924 | self->AssertNoPendingException(); |
| 1925 | } |
| 1926 | } |
| 1927 | |
| 1928 | virtual void Finalize() { |
| 1929 | delete this; |
| 1930 | } |
Brian Carlstrom | 0cd7ec2 | 2013-07-17 23:40:20 -0700 | [diff] [blame] | 1931 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1932 | private: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1933 | ParallelCompilationManager* const manager_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1934 | const size_t end_; |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1935 | CompilationVisitor* const visitor_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1936 | }; |
| 1937 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1938 | AtomicInteger index_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1939 | ClassLinker* const class_linker_; |
| 1940 | const jobject class_loader_; |
| 1941 | CompilerDriver* const compiler_; |
| 1942 | const DexFile* const dex_file_; |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1943 | const std::vector<const DexFile*>& dex_files_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1944 | ThreadPool* const thread_pool_; |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1945 | |
| 1946 | DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1947 | }; |
| 1948 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1949 | // A fast version of SkipClass above if the class pointer is available |
| 1950 | // that avoids the expensive FindInClassPath search. |
| 1951 | static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1952 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1953 | DCHECK(klass != nullptr); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1954 | const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); |
| 1955 | if (&dex_file != &original_dex_file) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1956 | if (class_loader == nullptr) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1957 | LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " |
| 1958 | << dex_file.GetLocation() << " previously found in " |
| 1959 | << original_dex_file.GetLocation(); |
| 1960 | } |
| 1961 | return true; |
| 1962 | } |
| 1963 | return false; |
| 1964 | } |
| 1965 | |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1966 | static void CheckAndClearResolveException(Thread* self) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1967 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1968 | CHECK(self->IsExceptionPending()); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1969 | mirror::Throwable* exception = self->GetException(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1970 | std::string temp; |
| 1971 | const char* descriptor = exception->GetClass()->GetDescriptor(&temp); |
| 1972 | const char* expected_exceptions[] = { |
| 1973 | "Ljava/lang/IllegalAccessError;", |
| 1974 | "Ljava/lang/IncompatibleClassChangeError;", |
| 1975 | "Ljava/lang/InstantiationError;", |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1976 | "Ljava/lang/LinkageError;", |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1977 | "Ljava/lang/NoClassDefFoundError;", |
| 1978 | "Ljava/lang/NoSuchFieldError;", |
| 1979 | "Ljava/lang/NoSuchMethodError;" |
| 1980 | }; |
| 1981 | bool found = false; |
| 1982 | for (size_t i = 0; (found == false) && (i < arraysize(expected_exceptions)); ++i) { |
| 1983 | if (strcmp(descriptor, expected_exceptions[i]) == 0) { |
| 1984 | found = true; |
| 1985 | } |
| 1986 | } |
| 1987 | if (!found) { |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1988 | LOG(FATAL) << "Unexpected exception " << exception->Dump(); |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1989 | } |
| 1990 | self->ClearException(); |
| 1991 | } |
| 1992 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1993 | class ResolveClassFieldsAndMethodsVisitor : public CompilationVisitor { |
| 1994 | public: |
| 1995 | explicit ResolveClassFieldsAndMethodsVisitor(const ParallelCompilationManager* manager) |
| 1996 | : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1997 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1998 | void Visit(size_t class_def_index) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1999 | ATRACE_CALL(); |
| 2000 | Thread* const self = Thread::Current(); |
| 2001 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2002 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2003 | ClassLinker* class_linker = manager_->GetClassLinker(); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2004 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2005 | // If an instance field is final then we need to have a barrier on the return, static final |
| 2006 | // fields are assigned within the lock held for class initialization. Conservatively assume |
| 2007 | // constructor barriers are always required. |
| 2008 | bool requires_constructor_barrier = true; |
| 2009 | |
| 2010 | // Method and Field are the worst. We can't resolve without either |
| 2011 | // context from the code use (to disambiguate virtual vs direct |
| 2012 | // method and instance vs static field) or from class |
| 2013 | // definitions. While the compiler will resolve what it can as it |
| 2014 | // needs it, here we try to resolve fields and methods used in class |
| 2015 | // definitions, since many of them many never be referenced by |
| 2016 | // generated code. |
| 2017 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2018 | ScopedObjectAccess soa(self); |
| 2019 | StackHandleScope<2> hs(soa.Self()); |
| 2020 | Handle<mirror::ClassLoader> class_loader( |
| 2021 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 2022 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 2023 | soa.Self(), dex_file, false))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2024 | // Resolve the class. |
| 2025 | mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, |
| 2026 | class_loader); |
| 2027 | bool resolve_fields_and_methods; |
| 2028 | if (klass == nullptr) { |
| 2029 | // Class couldn't be resolved, for example, super-class is in a different dex file. Don't |
| 2030 | // attempt to resolve methods and fields when there is no declaring class. |
| 2031 | CheckAndClearResolveException(soa.Self()); |
| 2032 | resolve_fields_and_methods = false; |
| 2033 | } else { |
| 2034 | // We successfully resolved a class, should we skip it? |
| 2035 | if (SkipClass(jclass_loader, dex_file, klass)) { |
| 2036 | return; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2037 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2038 | // We want to resolve the methods and fields eagerly. |
| 2039 | resolve_fields_and_methods = true; |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 2040 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2041 | // Note the class_data pointer advances through the headers, |
| 2042 | // static fields, instance fields, direct methods, and virtual |
| 2043 | // methods. |
| 2044 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 2045 | if (class_data == nullptr) { |
| 2046 | // Empty class such as a marker interface. |
| 2047 | requires_constructor_barrier = false; |
| 2048 | } else { |
| 2049 | ClassDataItemIterator it(dex_file, class_data); |
| 2050 | while (it.HasNextStaticField()) { |
| 2051 | if (resolve_fields_and_methods) { |
| 2052 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 2053 | dex_cache, class_loader, true); |
| 2054 | if (field == nullptr) { |
| 2055 | CheckAndClearResolveException(soa.Self()); |
| 2056 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 2057 | } |
| 2058 | it.Next(); |
| 2059 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2060 | // We require a constructor barrier if there are final instance fields. |
| 2061 | requires_constructor_barrier = false; |
| 2062 | while (it.HasNextInstanceField()) { |
| 2063 | if (it.MemberIsFinal()) { |
| 2064 | requires_constructor_barrier = true; |
| 2065 | } |
| 2066 | if (resolve_fields_and_methods) { |
| 2067 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 2068 | dex_cache, class_loader, false); |
| 2069 | if (field == nullptr) { |
| 2070 | CheckAndClearResolveException(soa.Self()); |
| 2071 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 2072 | } |
| 2073 | it.Next(); |
| 2074 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2075 | if (resolve_fields_and_methods) { |
| 2076 | while (it.HasNextDirectMethod()) { |
Andreas Gampe | 42ef8ab | 2015-12-03 17:27:32 -0800 | [diff] [blame] | 2077 | ArtMethod* method = class_linker->ResolveMethod<ClassLinker::kNoICCECheckForCache>( |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2078 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 2079 | it.GetMethodInvokeType(class_def)); |
| 2080 | if (method == nullptr) { |
| 2081 | CheckAndClearResolveException(soa.Self()); |
| 2082 | } |
| 2083 | it.Next(); |
| 2084 | } |
| 2085 | while (it.HasNextVirtualMethod()) { |
Andreas Gampe | 42ef8ab | 2015-12-03 17:27:32 -0800 | [diff] [blame] | 2086 | ArtMethod* method = class_linker->ResolveMethod<ClassLinker::kNoICCECheckForCache>( |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2087 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 2088 | it.GetMethodInvokeType(class_def)); |
| 2089 | if (method == nullptr) { |
| 2090 | CheckAndClearResolveException(soa.Self()); |
| 2091 | } |
| 2092 | it.Next(); |
| 2093 | } |
| 2094 | DCHECK(!it.HasNext()); |
| 2095 | } |
| 2096 | } |
| 2097 | if (requires_constructor_barrier) { |
| 2098 | manager_->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2099 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2100 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2101 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2102 | private: |
| 2103 | const ParallelCompilationManager* const manager_; |
| 2104 | }; |
| 2105 | |
| 2106 | class ResolveTypeVisitor : public CompilationVisitor { |
| 2107 | public: |
| 2108 | explicit ResolveTypeVisitor(const ParallelCompilationManager* manager) : manager_(manager) { |
| 2109 | } |
| 2110 | virtual void Visit(size_t type_idx) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2111 | // Class derived values are more complicated, they require the linker and loader. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2112 | ScopedObjectAccess soa(Thread::Current()); |
| 2113 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2114 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2115 | StackHandleScope<2> hs(soa.Self()); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2116 | Handle<mirror::ClassLoader> class_loader( |
| 2117 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(manager_->GetClassLoader()))); |
Mathieu Chartier | d57d454 | 2015-10-14 10:55:30 -0700 | [diff] [blame] | 2118 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->RegisterDexFile( |
| 2119 | dex_file, |
| 2120 | class_linker->GetOrCreateAllocatorForClassLoader(class_loader.Get())))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2121 | mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2122 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2123 | if (klass == nullptr) { |
| 2124 | soa.Self()->AssertPendingException(); |
| 2125 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2126 | VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); |
| 2127 | if (exception->GetClass()->DescriptorEquals("Ljava/lang/OutOfMemoryError;")) { |
| 2128 | // There's little point continuing compilation if the heap is exhausted. |
| 2129 | LOG(FATAL) << "Out of memory during type resolution for compilation"; |
| 2130 | } |
| 2131 | soa.Self()->ClearException(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2132 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2133 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2134 | |
| 2135 | private: |
| 2136 | const ParallelCompilationManager* const manager_; |
| 2137 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2138 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2139 | void CompilerDriver::ResolveDexFile(jobject class_loader, |
| 2140 | const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2141 | const std::vector<const DexFile*>& dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2142 | ThreadPool* thread_pool, |
| 2143 | size_t thread_count, |
| 2144 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2145 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2146 | |
| 2147 | // TODO: we could resolve strings here, although the string table is largely filled with class |
| 2148 | // and method names. |
| 2149 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2150 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2151 | thread_pool); |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2152 | if (IsBootImage()) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2153 | // For images we resolve all types, such as array, whereas for applications just those with |
| 2154 | // classdefs are resolved by ResolveClassFieldsAndMethods. |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2155 | TimingLogger::ScopedTiming t("Resolve Types", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2156 | ResolveTypeVisitor visitor(&context); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2157 | context.ForAll(0, dex_file.NumTypeIds(), &visitor, thread_count); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2158 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2159 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2160 | TimingLogger::ScopedTiming t("Resolve MethodsAndFields", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2161 | ResolveClassFieldsAndMethodsVisitor visitor(&context); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2162 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2163 | } |
| 2164 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2165 | void CompilerDriver::SetVerified(jobject class_loader, |
| 2166 | const std::vector<const DexFile*>& dex_files, |
| 2167 | TimingLogger* timings) { |
| 2168 | // This can be run in parallel. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2169 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2170 | CHECK(dex_file != nullptr); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2171 | SetVerifiedDexFile(class_loader, |
| 2172 | *dex_file, |
| 2173 | dex_files, |
| 2174 | parallel_thread_pool_.get(), |
| 2175 | parallel_thread_count_, |
| 2176 | timings); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2177 | } |
| 2178 | } |
| 2179 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2180 | void CompilerDriver::Verify(jobject class_loader, |
| 2181 | const std::vector<const DexFile*>& dex_files, |
| 2182 | TimingLogger* timings) { |
| 2183 | // Note: verification should not be pulling in classes anymore when compiling the boot image, |
| 2184 | // as all should have been resolved before. As such, doing this in parallel should still |
| 2185 | // be deterministic. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2186 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2187 | CHECK(dex_file != nullptr); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2188 | VerifyDexFile(class_loader, |
| 2189 | *dex_file, |
| 2190 | dex_files, |
| 2191 | parallel_thread_pool_.get(), |
| 2192 | parallel_thread_count_, |
| 2193 | timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2194 | } |
| 2195 | } |
| 2196 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2197 | class VerifyClassVisitor : public CompilationVisitor { |
| 2198 | public: |
| 2199 | explicit VerifyClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2200 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2201 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2202 | ATRACE_CALL(); |
| 2203 | ScopedObjectAccess soa(Thread::Current()); |
| 2204 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2205 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2206 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2207 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2208 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2209 | StackHandleScope<3> hs(soa.Self()); |
| 2210 | Handle<mirror::ClassLoader> class_loader( |
| 2211 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2212 | Handle<mirror::Class> klass( |
| 2213 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2214 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2215 | CHECK(soa.Self()->IsExceptionPending()); |
| 2216 | soa.Self()->ClearException(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2217 | |
| 2218 | /* |
| 2219 | * At compile time, we can still structurally verify the class even if FindClass fails. |
| 2220 | * This is to ensure the class is structurally sound for compilation. An unsound class |
| 2221 | * will be rejected by the verifier and later skipped during compilation in the compiler. |
| 2222 | */ |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 2223 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 2224 | soa.Self(), dex_file, false))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2225 | std::string error_msg; |
Andreas Gampe | ec6e6c1 | 2015-11-05 20:39:56 -0800 | [diff] [blame] | 2226 | if (verifier::MethodVerifier::VerifyClass(soa.Self(), |
| 2227 | &dex_file, |
| 2228 | dex_cache, |
| 2229 | class_loader, |
| 2230 | &class_def, |
Andreas Gampe | 53e32d1 | 2015-12-09 21:03:23 -0800 | [diff] [blame] | 2231 | Runtime::Current()->GetCompilerCallbacks(), |
Andreas Gampe | ec6e6c1 | 2015-11-05 20:39:56 -0800 | [diff] [blame] | 2232 | true /* allow soft failures */, |
| 2233 | true /* log hard failures */, |
| 2234 | &error_msg) == |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2235 | verifier::MethodVerifier::kHardFailure) { |
| 2236 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) |
| 2237 | << " because: " << error_msg; |
| 2238 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2239 | } |
| 2240 | } else if (!SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2241 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()); |
| 2242 | class_linker->VerifyClass(soa.Self(), klass); |
| 2243 | |
| 2244 | if (klass->IsErroneous()) { |
| 2245 | // ClassLinker::VerifyClass throws, which isn't useful in the compiler. |
| 2246 | CHECK(soa.Self()->IsExceptionPending()); |
| 2247 | soa.Self()->ClearException(); |
| 2248 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2249 | } |
| 2250 | |
| 2251 | CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) |
| 2252 | << PrettyDescriptor(klass.Get()) << ": state=" << klass->GetStatus(); |
| 2253 | |
| 2254 | // It is *very* problematic if there are verification errors in the boot classpath. For example, |
| 2255 | // we rely on things working OK without verification when the decryption dialog is brought up. |
| 2256 | // So abort in a debug build if we find this violated. |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2257 | DCHECK(!manager_->GetCompiler()->IsBootImage() || klass->IsVerified()) |
| 2258 | << "Boot classpath class " << PrettyClass(klass.Get()) << " failed to fully verify."; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2259 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2260 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2261 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2262 | |
| 2263 | private: |
| 2264 | const ParallelCompilationManager* const manager_; |
| 2265 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2266 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2267 | void CompilerDriver::VerifyDexFile(jobject class_loader, |
| 2268 | const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2269 | const std::vector<const DexFile*>& dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2270 | ThreadPool* thread_pool, |
| 2271 | size_t thread_count, |
| 2272 | TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2273 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2274 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2275 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2276 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2277 | VerifyClassVisitor visitor(&context); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2278 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2279 | } |
| 2280 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2281 | class SetVerifiedClassVisitor : public CompilationVisitor { |
| 2282 | public: |
| 2283 | explicit SetVerifiedClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2284 | |
| 2285 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2286 | ATRACE_CALL(); |
| 2287 | ScopedObjectAccess soa(Thread::Current()); |
| 2288 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2289 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2290 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2291 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2292 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2293 | StackHandleScope<3> hs(soa.Self()); |
| 2294 | Handle<mirror::ClassLoader> class_loader( |
| 2295 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2296 | Handle<mirror::Class> klass( |
| 2297 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2298 | // Class might have failed resolution. Then don't set it to verified. |
| 2299 | if (klass.Get() != nullptr) { |
| 2300 | // Only do this if the class is resolved. If even resolution fails, quickening will go very, |
| 2301 | // very wrong. |
| 2302 | if (klass->IsResolved()) { |
| 2303 | if (klass->GetStatus() < mirror::Class::kStatusVerified) { |
| 2304 | ObjectLock<mirror::Class> lock(soa.Self(), klass); |
| 2305 | // Set class status to verified. |
| 2306 | mirror::Class::SetStatus(klass, mirror::Class::kStatusVerified, soa.Self()); |
| 2307 | // Mark methods as pre-verified. If we don't do this, the interpreter will run with |
| 2308 | // access checks. |
Igor Murashkin | df707e4 | 2016-02-02 16:56:50 -0800 | [diff] [blame] | 2309 | klass->SetSkipAccessChecksFlagOnAllMethods( |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2310 | GetInstructionSetPointerSize(manager_->GetCompiler()->GetInstructionSet())); |
Igor Murashkin | df707e4 | 2016-02-02 16:56:50 -0800 | [diff] [blame] | 2311 | klass->SetVerificationAttempted(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2312 | } |
| 2313 | // Record the final class status if necessary. |
| 2314 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2315 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2316 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2317 | } else { |
| 2318 | Thread* self = soa.Self(); |
| 2319 | DCHECK(self->IsExceptionPending()); |
| 2320 | self->ClearException(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2321 | } |
| 2322 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2323 | |
| 2324 | private: |
| 2325 | const ParallelCompilationManager* const manager_; |
| 2326 | }; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2327 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2328 | void CompilerDriver::SetVerifiedDexFile(jobject class_loader, |
| 2329 | const DexFile& dex_file, |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2330 | const std::vector<const DexFile*>& dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2331 | ThreadPool* thread_pool, |
| 2332 | size_t thread_count, |
| 2333 | TimingLogger* timings) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2334 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
| 2335 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2336 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2337 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2338 | SetVerifiedClassVisitor visitor(&context); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2339 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2340 | } |
| 2341 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2342 | class InitializeClassVisitor : public CompilationVisitor { |
| 2343 | public: |
| 2344 | explicit InitializeClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2345 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2346 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2347 | ATRACE_CALL(); |
| 2348 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2349 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2350 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2351 | const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); |
| 2352 | const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 2353 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2354 | ScopedObjectAccess soa(Thread::Current()); |
| 2355 | StackHandleScope<3> hs(soa.Self()); |
| 2356 | Handle<mirror::ClassLoader> class_loader( |
| 2357 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2358 | Handle<mirror::Class> klass( |
| 2359 | hs.NewHandle(manager_->GetClassLinker()->FindClass(soa.Self(), descriptor, class_loader))); |
| 2360 | |
| 2361 | if (klass.Get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2362 | // Only try to initialize classes that were successfully verified. |
| 2363 | if (klass->IsVerified()) { |
| 2364 | // Attempt to initialize the class but bail if we either need to initialize the super-class |
| 2365 | // or static fields. |
| 2366 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, false); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2367 | if (!klass->IsInitialized()) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2368 | // We don't want non-trivial class initialization occurring on multiple threads due to |
| 2369 | // deadlock problems. For example, a parent class is initialized (holding its lock) that |
| 2370 | // refers to a sub-class in its static/class initializer causing it to try to acquire the |
| 2371 | // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) |
| 2372 | // after first initializing its parents, whose locks are acquired. This leads to a |
| 2373 | // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. |
| 2374 | // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather |
| 2375 | // than use a special Object for the purpose we use the Class of java.lang.Class. |
| 2376 | Handle<mirror::Class> h_klass(hs.NewHandle(klass->GetClass())); |
| 2377 | ObjectLock<mirror::Class> lock(soa.Self(), h_klass); |
| 2378 | // Attempt to initialize allowing initialization of parent classes but still not static |
| 2379 | // fields. |
| 2380 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, true); |
| 2381 | if (!klass->IsInitialized()) { |
| 2382 | // We need to initialize static fields, we only do this for image classes that aren't |
| 2383 | // marked with the $NoPreloadHolder (which implies this should not be initialized early). |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2384 | bool can_init_static_fields = manager_->GetCompiler()->IsBootImage() && |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2385 | manager_->GetCompiler()->IsImageClass(descriptor) && |
| 2386 | !StringPiece(descriptor).ends_with("$NoPreloadHolder;"); |
| 2387 | if (can_init_static_fields) { |
| 2388 | VLOG(compiler) << "Initializing: " << descriptor; |
| 2389 | // TODO multithreading support. We should ensure the current compilation thread has |
| 2390 | // exclusive access to the runtime and the transaction. To achieve this, we could use |
| 2391 | // a ReaderWriterMutex but we're holding the mutator lock so we fail mutex sanity |
| 2392 | // checks in Thread::AssertThreadSuspensionIsAllowable. |
| 2393 | Runtime* const runtime = Runtime::Current(); |
| 2394 | Transaction transaction; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2395 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2396 | // Run the class initializer in transaction mode. |
| 2397 | runtime->EnterTransactionMode(&transaction); |
| 2398 | const mirror::Class::Status old_status = klass->GetStatus(); |
| 2399 | bool success = manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, true, |
| 2400 | true); |
| 2401 | // TODO we detach transaction from runtime to indicate we quit the transactional |
| 2402 | // mode which prevents the GC from visiting objects modified during the transaction. |
| 2403 | // Ensure GC is not run so don't access freed objects when aborting transaction. |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 2404 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2405 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Transaction end"); |
| 2406 | runtime->ExitTransactionMode(); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2407 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2408 | if (!success) { |
| 2409 | CHECK(soa.Self()->IsExceptionPending()); |
| 2410 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2411 | VLOG(compiler) << "Initialization of " << descriptor << " aborted because of " |
| 2412 | << exception->Dump(); |
| 2413 | std::ostream* file_log = manager_->GetCompiler()-> |
| 2414 | GetCompilerOptions().GetInitFailureOutput(); |
| 2415 | if (file_log != nullptr) { |
| 2416 | *file_log << descriptor << "\n"; |
| 2417 | *file_log << exception->Dump() << "\n"; |
| 2418 | } |
| 2419 | soa.Self()->ClearException(); |
| 2420 | transaction.Rollback(); |
| 2421 | CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored"; |
Andreas Gampe | dbfe254 | 2014-11-25 22:21:42 -0800 | [diff] [blame] | 2422 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2423 | } |
| 2424 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2425 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2426 | } |
| 2427 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2428 | // Record the final class status if necessary. |
| 2429 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2430 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2431 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2432 | // Clear any class not found or verification exceptions. |
| 2433 | soa.Self()->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2434 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2435 | |
| 2436 | private: |
| 2437 | const ParallelCompilationManager* const manager_; |
| 2438 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2439 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2440 | void CompilerDriver::InitializeClasses(jobject jni_class_loader, |
| 2441 | const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2442 | const std::vector<const DexFile*>& dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2443 | TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2444 | TimingLogger::ScopedTiming t("InitializeNoClinit", timings); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2445 | |
| 2446 | // Initialization allocates objects and needs to run single-threaded to be deterministic. |
| 2447 | bool force_determinism = GetCompilerOptions().IsForceDeterminism(); |
| 2448 | ThreadPool* init_thread_pool = force_determinism |
| 2449 | ? single_thread_pool_.get() |
| 2450 | : parallel_thread_pool_.get(); |
| 2451 | size_t init_thread_count = force_determinism ? 1U : parallel_thread_count_; |
| 2452 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2453 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2454 | ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2455 | init_thread_pool); |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2456 | if (IsBootImage()) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2457 | // TODO: remove this when transactional mode supports multithreading. |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2458 | init_thread_count = 1U; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2459 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2460 | InitializeClassVisitor visitor(&context); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2461 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, init_thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2462 | } |
| 2463 | |
| 2464 | void CompilerDriver::InitializeClasses(jobject class_loader, |
| 2465 | const std::vector<const DexFile*>& dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2466 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2467 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2468 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2469 | CHECK(dex_file != nullptr); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2470 | InitializeClasses(class_loader, *dex_file, dex_files, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2471 | } |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2472 | if (IsBootImage()) { |
Mathieu Chartier | 093ef21 | 2014-08-11 13:52:12 -0700 | [diff] [blame] | 2473 | // Prune garbage objects created during aborted transactions. |
| 2474 | Runtime::Current()->GetHeap()->CollectGarbage(true); |
| 2475 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2476 | } |
| 2477 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2478 | void CompilerDriver::Compile(jobject class_loader, |
| 2479 | const std::vector<const DexFile*>& dex_files, |
| 2480 | TimingLogger* timings) { |
Calin Juravle | 998c216 | 2015-12-21 15:39:33 +0200 | [diff] [blame] | 2481 | if (kDebugProfileGuidedCompilation) { |
| 2482 | LOG(INFO) << "[ProfileGuidedCompilation] " << |
| 2483 | ((profile_compilation_info_ == nullptr) |
| 2484 | ? "null" |
| 2485 | : profile_compilation_info_->DumpInfo(&dex_files)); |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 2486 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2487 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2488 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2489 | CHECK(dex_file != nullptr); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2490 | CompileDexFile(class_loader, |
| 2491 | *dex_file, |
| 2492 | dex_files, |
| 2493 | parallel_thread_pool_.get(), |
| 2494 | parallel_thread_count_, |
| 2495 | timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2496 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2497 | VLOG(compiler) << "Compile: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2498 | } |
| 2499 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2500 | class CompileClassVisitor : public CompilationVisitor { |
| 2501 | public: |
| 2502 | explicit CompileClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2503 | |
| 2504 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2505 | ATRACE_CALL(); |
| 2506 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2507 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2508 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2509 | jobject jclass_loader = manager_->GetClassLoader(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2510 | ClassReference ref(&dex_file, class_def_index); |
| 2511 | // Skip compiling classes with generic verifier failures since they will still fail at runtime |
| 2512 | if (manager_->GetCompiler()->verification_results_->IsClassRejected(ref)) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2513 | return; |
| 2514 | } |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2515 | // Use a scoped object access to perform to the quick SkipClass check. |
| 2516 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2517 | ScopedObjectAccess soa(Thread::Current()); |
| 2518 | StackHandleScope<3> hs(soa.Self()); |
| 2519 | Handle<mirror::ClassLoader> class_loader( |
| 2520 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2521 | Handle<mirror::Class> klass( |
| 2522 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2523 | Handle<mirror::DexCache> dex_cache; |
| 2524 | if (klass.Get() == nullptr) { |
| 2525 | soa.Self()->AssertPendingException(); |
| 2526 | soa.Self()->ClearException(); |
| 2527 | dex_cache = hs.NewHandle(class_linker->FindDexCache(soa.Self(), dex_file)); |
| 2528 | } else if (SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2529 | return; |
| 2530 | } else { |
| 2531 | dex_cache = hs.NewHandle(klass->GetDexCache()); |
| 2532 | } |
| 2533 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2534 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 2535 | if (class_data == nullptr) { |
| 2536 | // empty class, probably a marker interface |
| 2537 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2538 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2539 | |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2540 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 2541 | ScopedThreadSuspension sts(soa.Self(), kNative); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2542 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2543 | CompilerDriver* const driver = manager_->GetCompiler(); |
| 2544 | |
| 2545 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2546 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2547 | GetDexToDexCompilationLevel(soa.Self(), *driver, jclass_loader, dex_file, class_def); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2548 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2549 | ClassDataItemIterator it(dex_file, class_data); |
| 2550 | // Skip fields |
| 2551 | while (it.HasNextStaticField()) { |
| 2552 | it.Next(); |
| 2553 | } |
| 2554 | while (it.HasNextInstanceField()) { |
| 2555 | it.Next(); |
| 2556 | } |
| 2557 | |
| 2558 | bool compilation_enabled = driver->IsClassToCompile( |
| 2559 | dex_file.StringByTypeIdx(class_def.class_idx_)); |
| 2560 | |
| 2561 | // Compile direct methods |
| 2562 | int64_t previous_direct_method_idx = -1; |
| 2563 | while (it.HasNextDirectMethod()) { |
| 2564 | uint32_t method_idx = it.GetMemberIndex(); |
| 2565 | if (method_idx == previous_direct_method_idx) { |
| 2566 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2567 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2568 | it.Next(); |
| 2569 | continue; |
| 2570 | } |
| 2571 | previous_direct_method_idx = method_idx; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2572 | CompileMethod(soa.Self(), driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2573 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2574 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2575 | compilation_enabled, dex_cache); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2576 | it.Next(); |
| 2577 | } |
| 2578 | // Compile virtual methods |
| 2579 | int64_t previous_virtual_method_idx = -1; |
| 2580 | while (it.HasNextVirtualMethod()) { |
| 2581 | uint32_t method_idx = it.GetMemberIndex(); |
| 2582 | if (method_idx == previous_virtual_method_idx) { |
| 2583 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2584 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2585 | it.Next(); |
| 2586 | continue; |
| 2587 | } |
| 2588 | previous_virtual_method_idx = method_idx; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2589 | CompileMethod(soa.Self(), driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2590 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2591 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2592 | compilation_enabled, dex_cache); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2593 | it.Next(); |
| 2594 | } |
| 2595 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2596 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2597 | |
| 2598 | private: |
| 2599 | const ParallelCompilationManager* const manager_; |
| 2600 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2601 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2602 | void CompilerDriver::CompileDexFile(jobject class_loader, |
| 2603 | const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2604 | const std::vector<const DexFile*>& dex_files, |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2605 | ThreadPool* thread_pool, |
| 2606 | size_t thread_count, |
| 2607 | TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2608 | TimingLogger::ScopedTiming t("Compile Dex File", timings); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2609 | ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2610 | &dex_file, dex_files, thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2611 | CompileClassVisitor visitor(&context); |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2612 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2613 | } |
| 2614 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2615 | void CompilerDriver::AddCompiledMethod(const MethodReference& method_ref, |
| 2616 | CompiledMethod* const compiled_method, |
| 2617 | size_t non_relative_linker_patch_count) { |
| 2618 | DCHECK(GetCompiledMethod(method_ref) == nullptr) |
| 2619 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
| 2620 | { |
| 2621 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2622 | compiled_methods_.Put(method_ref, compiled_method); |
| 2623 | non_relative_linker_patch_count_ += non_relative_linker_patch_count; |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2624 | } |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2625 | DCHECK(GetCompiledMethod(method_ref) != nullptr) |
| 2626 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2627 | } |
| 2628 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2629 | void CompilerDriver::RemoveCompiledMethod(const MethodReference& method_ref) { |
| 2630 | CompiledMethod* compiled_method = nullptr; |
| 2631 | { |
| 2632 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2633 | auto it = compiled_methods_.find(method_ref); |
| 2634 | if (it != compiled_methods_.end()) { |
| 2635 | compiled_method = it->second; |
| 2636 | compiled_methods_.erase(it); |
| 2637 | } |
| 2638 | } |
| 2639 | if (compiled_method != nullptr) { |
| 2640 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, compiled_method); |
| 2641 | } |
| 2642 | } |
| 2643 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2644 | CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { |
| 2645 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2646 | ClassTable::const_iterator it = compiled_classes_.find(ref); |
| 2647 | if (it == compiled_classes_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2648 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2649 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2650 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2651 | return it->second; |
| 2652 | } |
| 2653 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2654 | void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { |
| 2655 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2656 | auto it = compiled_classes_.find(ref); |
| 2657 | if (it == compiled_classes_.end() || it->second->GetStatus() != status) { |
| 2658 | // An entry doesn't exist or the status is lower than the new status. |
| 2659 | if (it != compiled_classes_.end()) { |
| 2660 | CHECK_GT(status, it->second->GetStatus()); |
| 2661 | delete it->second; |
| 2662 | } |
| 2663 | switch (status) { |
| 2664 | case mirror::Class::kStatusNotReady: |
| 2665 | case mirror::Class::kStatusError: |
| 2666 | case mirror::Class::kStatusRetryVerificationAtRuntime: |
| 2667 | case mirror::Class::kStatusVerified: |
| 2668 | case mirror::Class::kStatusInitialized: |
| 2669 | break; // Expected states. |
| 2670 | default: |
| 2671 | LOG(FATAL) << "Unexpected class status for class " |
| 2672 | << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) |
| 2673 | << " of " << status; |
| 2674 | } |
| 2675 | CompiledClass* compiled_class = new CompiledClass(status); |
| 2676 | compiled_classes_.Overwrite(ref, compiled_class); |
| 2677 | } |
| 2678 | } |
| 2679 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2680 | CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { |
| 2681 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2682 | MethodTable::const_iterator it = compiled_methods_.find(ref); |
| 2683 | if (it == compiled_methods_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2684 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2685 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2686 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2687 | return it->second; |
| 2688 | } |
| 2689 | |
Calin Juravle | f1c6d9e | 2015-04-13 18:42:21 +0100 | [diff] [blame] | 2690 | bool CompilerDriver::IsMethodVerifiedWithoutFailures(uint32_t method_idx, |
| 2691 | uint16_t class_def_idx, |
| 2692 | const DexFile& dex_file) const { |
| 2693 | const VerifiedMethod* verified_method = GetVerifiedMethod(&dex_file, method_idx); |
| 2694 | if (verified_method != nullptr) { |
| 2695 | return !verified_method->HasVerificationFailures(); |
| 2696 | } |
| 2697 | |
| 2698 | // If we can't find verification metadata, check if this is a system class (we trust that system |
| 2699 | // classes have their methods verified). If it's not, be conservative and assume the method |
| 2700 | // has not been verified successfully. |
| 2701 | |
| 2702 | // TODO: When compiling the boot image it should be safe to assume that everything is verified, |
| 2703 | // even if methods are not found in the verification cache. |
| 2704 | const char* descriptor = dex_file.GetClassDescriptor(dex_file.GetClassDef(class_def_idx)); |
| 2705 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2706 | Thread* self = Thread::Current(); |
| 2707 | ScopedObjectAccess soa(self); |
| 2708 | bool is_system_class = class_linker->FindSystemClass(self, descriptor) != nullptr; |
| 2709 | if (!is_system_class) { |
| 2710 | self->ClearException(); |
| 2711 | } |
| 2712 | return is_system_class; |
| 2713 | } |
| 2714 | |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2715 | size_t CompilerDriver::GetNonRelativeLinkerPatchCount() const { |
| 2716 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2717 | return non_relative_linker_patch_count_; |
| 2718 | } |
| 2719 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2720 | void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2721 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2722 | WriterMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2723 | freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); |
| 2724 | } |
| 2725 | |
| 2726 | bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Calin Juravle | 27df758 | 2015-04-17 19:12:31 +0100 | [diff] [blame] | 2727 | uint16_t class_def_index) const { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2728 | ReaderMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2729 | return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; |
| 2730 | } |
| 2731 | |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2732 | std::string CompilerDriver::GetMemoryUsageString(bool extended) const { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2733 | std::ostringstream oss; |
Mathieu Chartier | 9b34b24 | 2015-03-09 11:30:17 -0700 | [diff] [blame] | 2734 | Runtime* const runtime = Runtime::Current(); |
| 2735 | const ArenaPool* arena_pool = runtime->GetArenaPool(); |
| 2736 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2737 | oss << "arena alloc=" << PrettySize(arena_pool->GetBytesAllocated()); |
| 2738 | oss << " java alloc=" << PrettySize(heap->GetBytesAllocated()); |
Elliott Hughes | 7bf5a26 | 2015-04-02 20:55:07 -0700 | [diff] [blame] | 2739 | #if defined(__BIONIC__) || defined(__GLIBC__) |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2740 | struct mallinfo info = mallinfo(); |
| 2741 | const size_t allocated_space = static_cast<size_t>(info.uordblks); |
| 2742 | const size_t free_space = static_cast<size_t>(info.fordblks); |
| 2743 | oss << " native alloc=" << PrettySize(allocated_space) << " free=" |
| 2744 | << PrettySize(free_space); |
| 2745 | #endif |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 2746 | compiled_method_storage_.DumpMemoryUsage(oss, extended); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2747 | return oss.str(); |
| 2748 | } |
| 2749 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 2750 | bool CompilerDriver::IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file) { |
| 2751 | const char* type = dex_file->GetTypeDescriptor(dex_file->GetTypeId(type_index)); |
| 2752 | return strcmp(type, "Ljava/lang/String;") == 0; |
| 2753 | } |
| 2754 | |
| 2755 | bool CompilerDriver::IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset) { |
| 2756 | DexFileMethodInliner* inliner = GetMethodInlinerMap()->GetMethodInliner(dex_file); |
| 2757 | size_t pointer_size = InstructionSetPointerSize(GetInstructionSet()); |
| 2758 | *offset = inliner->GetOffsetForStringInit(method_index, pointer_size); |
| 2759 | return inliner->IsStringInitMethodIndex(method_index); |
| 2760 | } |
| 2761 | |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 2762 | bool CompilerDriver::MayInlineInternal(const DexFile* inlined_from, |
| 2763 | const DexFile* inlined_into) const { |
| 2764 | // We're not allowed to inline across dex files if we're the no-inline-from dex file. |
| 2765 | if (inlined_from != inlined_into && |
Vladimir Marko | 47496c2 | 2016-01-27 16:15:08 +0000 | [diff] [blame] | 2766 | compiler_options_->GetNoInlineFromDexFile() != nullptr && |
| 2767 | ContainsElement(*compiler_options_->GetNoInlineFromDexFile(), inlined_from)) { |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 2768 | return false; |
| 2769 | } |
| 2770 | |
| 2771 | return true; |
| 2772 | } |
| 2773 | |
Andreas Gampe | ace0dc1 | 2016-01-20 13:33:13 -0800 | [diff] [blame] | 2774 | void CompilerDriver::InitializeThreadPools() { |
| 2775 | size_t parallel_count = parallel_thread_count_ > 0 ? parallel_thread_count_ - 1 : 0; |
| 2776 | parallel_thread_pool_.reset( |
| 2777 | new ThreadPool("Compiler driver thread pool", parallel_count)); |
| 2778 | single_thread_pool_.reset(new ThreadPool("Single-threaded Compiler driver thread pool", 0)); |
| 2779 | } |
| 2780 | |
| 2781 | void CompilerDriver::FreeThreadPools() { |
| 2782 | parallel_thread_pool_.reset(); |
| 2783 | single_thread_pool_.reset(); |
| 2784 | } |
| 2785 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2786 | } // namespace art |