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 | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 42 | #include "dex/dex_to_dex_compiler.h" |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 43 | #include "dex/verification_results.h" |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 44 | #include "dex/verified_method.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 45 | #include "dex/quick/dex_file_method_inliner.h" |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 46 | #include "dex/quick/dex_file_to_method_inliner_map.h" |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 47 | #include "driver/compiler_options.h" |
Andreas Gampe | 3773cd0 | 2015-04-10 09:28:22 -0700 | [diff] [blame] | 48 | #include "elf_writer_quick.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 | |
David Srbecky | ce0db62 | 2015-05-26 23:40:18 +0000 | [diff] [blame] | 80 | // Whether to produce 64-bit ELF files for 64-bit targets. |
| 81 | static constexpr bool kProduce64BitELFFiles = true; |
Andreas Gampe | 3773cd0 | 2015-04-10 09:28:22 -0700 | [diff] [blame] | 82 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 83 | // Whether classes-to-compile and methods-to-compile are only applied to the boot image, or, when |
| 84 | // given, too all compilations. |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 85 | static constexpr bool kRestrictCompilationFiltersToImage = true; |
| 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 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 338 | CompilerDriver::CompilerDriver(const CompilerOptions* compiler_options, |
| 339 | VerificationResults* verification_results, |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 340 | DexFileToMethodInlinerMap* method_inliner_map, |
Nicolas Geoffray | b34f69a | 2014-03-07 15:28:39 +0000 | [diff] [blame] | 341 | Compiler::Kind compiler_kind, |
Nicolas Geoffray | f5df897 | 2014-02-14 18:37:08 +0000 | [diff] [blame] | 342 | InstructionSet instruction_set, |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 343 | const InstructionSetFeatures* instruction_set_features, |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 344 | bool image, std::unordered_set<std::string>* image_classes, |
| 345 | std::unordered_set<std::string>* compiled_classes, |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 346 | std::unordered_set<std::string>* compiled_methods, |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 347 | size_t thread_count, bool dump_stats, bool dump_passes, |
David Brazdil | 866c031 | 2015-01-13 21:21:31 +0000 | [diff] [blame] | 348 | const std::string& dump_cfg_file_name, CumulativeLogger* timer, |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 349 | int swap_fd, const std::string& profile_file) |
| 350 | : swap_space_(swap_fd == -1 ? nullptr : new SwapSpace(swap_fd, 10 * MB)), |
| 351 | swap_space_allocator_(new SwapAllocator<void>(swap_space_.get())), |
| 352 | profile_present_(false), 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), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 364 | image_(image), |
| 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), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 369 | thread_count_(thread_count), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 370 | stats_(new AOTCompilationStats), |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 371 | dedupe_enabled_(true), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 372 | dump_stats_(dump_stats), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 373 | dump_passes_(dump_passes), |
David Brazdil | 866c031 | 2015-01-13 21:21:31 +0000 | [diff] [blame] | 374 | dump_cfg_file_name_(dump_cfg_file_name), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 375 | timings_logger_(timer), |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 376 | compiler_context_(nullptr), |
Andreas Gampe | 57b3429 | 2015-01-14 15:45:59 -0800 | [diff] [blame] | 377 | support_boot_image_fixup_(instruction_set != kMips && instruction_set != kMips64), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 378 | dedupe_code_("dedupe code", *swap_space_allocator_), |
| 379 | dedupe_src_mapping_table_("dedupe source mapping table", *swap_space_allocator_), |
| 380 | dedupe_mapping_table_("dedupe mapping table", *swap_space_allocator_), |
| 381 | dedupe_vmap_table_("dedupe vmap table", *swap_space_allocator_), |
| 382 | dedupe_gc_map_("dedupe gc map", *swap_space_allocator_), |
| 383 | dedupe_cfi_info_("dedupe cfi info", *swap_space_allocator_) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 384 | DCHECK(compiler_options_ != nullptr); |
| 385 | DCHECK(verification_results_ != nullptr); |
| 386 | DCHECK(method_inliner_map_ != nullptr); |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 387 | |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 388 | compiler_->Init(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 389 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 390 | CHECK_EQ(image_, image_classes_.get() != nullptr); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 391 | |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 392 | // Read the profile file if one is provided. |
| 393 | if (!profile_file.empty()) { |
| 394 | profile_present_ = profile_file_.LoadFile(profile_file); |
| 395 | if (profile_present_) { |
| 396 | LOG(INFO) << "Using profile data form file " << profile_file; |
| 397 | } else { |
| 398 | LOG(INFO) << "Failed to load profile file " << profile_file; |
| 399 | } |
| 400 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 401 | } |
| 402 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 403 | SwapVector<uint8_t>* CompilerDriver::DeduplicateCode(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 404 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 405 | return dedupe_code_.Add(Thread::Current(), code); |
| 406 | } |
| 407 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 408 | SwapSrcMap* CompilerDriver::DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 409 | DCHECK(dedupe_enabled_); |
Yevgeny Rouban | e3ea838 | 2014-08-08 16:29:38 +0700 | [diff] [blame] | 410 | return dedupe_src_mapping_table_.Add(Thread::Current(), src_map); |
| 411 | } |
| 412 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 413 | SwapVector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 414 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 415 | return dedupe_mapping_table_.Add(Thread::Current(), code); |
| 416 | } |
| 417 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 418 | SwapVector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 419 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 420 | return dedupe_vmap_table_.Add(Thread::Current(), code); |
| 421 | } |
| 422 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 423 | SwapVector<uint8_t>* CompilerDriver::DeduplicateGCMap(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 424 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 425 | return dedupe_gc_map_.Add(Thread::Current(), code); |
| 426 | } |
| 427 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 428 | SwapVector<uint8_t>* CompilerDriver::DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 429 | DCHECK(dedupe_enabled_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 430 | return dedupe_cfi_info_.Add(Thread::Current(), cfi_info); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 431 | } |
| 432 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 433 | CompilerDriver::~CompilerDriver() { |
| 434 | Thread* self = Thread::Current(); |
| 435 | { |
| 436 | MutexLock mu(self, compiled_classes_lock_); |
| 437 | STLDeleteValues(&compiled_classes_); |
| 438 | } |
| 439 | { |
| 440 | MutexLock mu(self, compiled_methods_lock_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 441 | for (auto& pair : compiled_methods_) { |
| 442 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, pair.second); |
| 443 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 444 | } |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 445 | compiler_->UnInit(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 446 | } |
| 447 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 448 | #define CREATE_TRAMPOLINE(type, abi, offset) \ |
Andreas Gampe | af13ad9 | 2014-04-11 12:07:48 -0700 | [diff] [blame] | 449 | if (Is64BitInstructionSet(instruction_set_)) { \ |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 450 | return CreateTrampoline64(instruction_set_, abi, \ |
| 451 | type ## _ENTRYPOINT_OFFSET(8, offset)); \ |
| 452 | } else { \ |
| 453 | return CreateTrampoline32(instruction_set_, abi, \ |
| 454 | type ## _ENTRYPOINT_OFFSET(4, offset)); \ |
| 455 | } |
| 456 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 457 | const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 458 | CREATE_TRAMPOLINE(INTERPRETER, kInterpreterAbi, pInterpreterToInterpreterBridge) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 462 | CREATE_TRAMPOLINE(INTERPRETER, kInterpreterAbi, pInterpreterToCompiledCodeBridge) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 463 | } |
| 464 | |
| 465 | const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 466 | CREATE_TRAMPOLINE(JNI, kJniAbi, pDlsymLookup) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 467 | } |
| 468 | |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 469 | const std::vector<uint8_t>* CompilerDriver::CreateQuickGenericJniTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 470 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickGenericJniTrampoline) |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 471 | } |
| 472 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 473 | const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 474 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickImtConflictTrampoline) |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 475 | } |
| 476 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 477 | const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 478 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickResolutionTrampoline) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 479 | } |
| 480 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 481 | const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 482 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickToInterpreterBridge) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 483 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 484 | #undef CREATE_TRAMPOLINE |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 485 | |
| 486 | void CompilerDriver::CompileAll(jobject class_loader, |
Brian Carlstrom | 4560248 | 2013-07-21 22:07:55 -0700 | [diff] [blame] | 487 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 488 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 489 | DCHECK(!Runtime::Current()->IsStarted()); |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 490 | std::unique_ptr<ThreadPool> thread_pool( |
| 491 | new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 492 | VLOG(compiler) << "Before precompile " << GetMemoryUsageString(false); |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 493 | PreCompile(class_loader, dex_files, thread_pool.get(), timings); |
| 494 | Compile(class_loader, dex_files, thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 495 | if (dump_stats_) { |
| 496 | stats_->Dump(); |
| 497 | } |
| 498 | } |
| 499 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 500 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 501 | Thread* self, const CompilerDriver& driver, Handle<mirror::ClassLoader> class_loader, |
| 502 | const DexFile& dex_file, const DexFile::ClassDef& class_def) |
| 503 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 504 | auto* const runtime = Runtime::Current(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 505 | if (runtime->UseJit() || driver.GetCompilerOptions().VerifyAtRuntime()) { |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 506 | // 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] | 507 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 508 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 509 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 510 | ClassLinker* class_linker = runtime->GetClassLinker(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 511 | mirror::Class* klass = class_linker->FindClass(self, descriptor, class_loader); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 512 | if (klass == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 513 | CHECK(self->IsExceptionPending()); |
| 514 | self->ClearException(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 515 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 516 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 517 | // DexToDex at the kOptimize level may introduce quickened opcodes, which replace symbolic |
| 518 | // references with actual offsets. We cannot re-verify such instructions. |
| 519 | // |
| 520 | // We store the verification information in the class status in the oat file, which the linker |
| 521 | // can validate (checksums) and use to skip load-time verification. It is thus safe to |
| 522 | // optimize when a class has been fully verified before. |
| 523 | if (klass->IsVerified()) { |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 524 | // 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] | 525 | return optimizer::DexToDexCompilationLevel::kOptimize; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 526 | } else if (klass->IsCompileTimeVerified()) { |
| 527 | // Class verification has soft-failed. Anyway, ensure at least correctness. |
| 528 | DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 529 | return optimizer::DexToDexCompilationLevel::kRequired; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 530 | } else { |
| 531 | // Class verification has failed: do not run DEX-to-DEX compilation. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 532 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
| 533 | } |
| 534 | } |
| 535 | |
| 536 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 537 | Thread* self, |
| 538 | const CompilerDriver& driver, |
| 539 | jobject jclass_loader, |
| 540 | const DexFile& dex_file, |
| 541 | const DexFile::ClassDef& class_def) { |
| 542 | ScopedObjectAccess soa(self); |
| 543 | StackHandleScope<1> hs(soa.Self()); |
| 544 | Handle<mirror::ClassLoader> class_loader( |
| 545 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 546 | return GetDexToDexCompilationLevel(self, driver, class_loader, dex_file, class_def); |
| 547 | } |
| 548 | |
| 549 | // Does the runtime for the InstructionSet provide an implementation returned by |
| 550 | // GetQuickGenericJniStub allowing down calls that aren't compiled using a JNI compiler? |
| 551 | static bool InstructionSetHasGenericJniStub(InstructionSet isa) { |
| 552 | switch (isa) { |
| 553 | case kArm: |
| 554 | case kArm64: |
| 555 | case kThumb2: |
| 556 | case kMips: |
| 557 | case kMips64: |
| 558 | case kX86: |
| 559 | case kX86_64: return true; |
| 560 | default: return false; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | static void CompileMethod(Thread* self, |
| 565 | CompilerDriver* driver, |
| 566 | const DexFile::CodeItem* code_item, |
| 567 | uint32_t access_flags, |
| 568 | InvokeType invoke_type, |
| 569 | uint16_t class_def_idx, |
| 570 | uint32_t method_idx, |
| 571 | jobject class_loader, |
| 572 | const DexFile& dex_file, |
| 573 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level, |
| 574 | bool compilation_enabled) |
| 575 | REQUIRES(!driver->compiled_methods_lock_) { |
| 576 | DCHECK(driver != nullptr); |
| 577 | CompiledMethod* compiled_method = nullptr; |
| 578 | uint64_t start_ns = kTimeCompileMethod ? NanoTime() : 0; |
| 579 | MethodReference method_ref(&dex_file, method_idx); |
| 580 | |
| 581 | if ((access_flags & kAccNative) != 0) { |
| 582 | // Are we interpreting only and have support for generic JNI down calls? |
| 583 | if (!driver->GetCompilerOptions().IsCompilationEnabled() && |
| 584 | InstructionSetHasGenericJniStub(driver->GetInstructionSet())) { |
| 585 | // Leaving this empty will trigger the generic JNI version |
| 586 | } else { |
| 587 | compiled_method = driver->GetCompiler()->JniCompile(access_flags, method_idx, dex_file); |
| 588 | CHECK(compiled_method != nullptr); |
| 589 | } |
| 590 | } else if ((access_flags & kAccAbstract) != 0) { |
| 591 | // Abstract methods don't have code. |
| 592 | } else { |
| 593 | bool has_verified_method = driver->GetVerificationResults() |
| 594 | ->GetVerifiedMethod(method_ref) != nullptr; |
| 595 | bool compile = compilation_enabled && |
| 596 | // Basic checks, e.g., not <clinit>. |
| 597 | driver->GetVerificationResults() |
| 598 | ->IsCandidateForCompilation(method_ref, access_flags) && |
| 599 | // Did not fail to create VerifiedMethod metadata. |
| 600 | has_verified_method && |
| 601 | // Is eligable for compilation by methods-to-compile filter. |
| 602 | driver->IsMethodToCompile(method_ref); |
| 603 | if (compile) { |
| 604 | // NOTE: if compiler declines to compile this method, it will return null. |
| 605 | compiled_method = driver->GetCompiler()->Compile(code_item, access_flags, invoke_type, |
| 606 | class_def_idx, method_idx, class_loader, |
| 607 | dex_file); |
| 608 | } |
| 609 | if (compiled_method == nullptr && |
| 610 | dex_to_dex_compilation_level != optimizer::DexToDexCompilationLevel::kDontDexToDexCompile) { |
| 611 | // TODO: add a command-line option to disable DEX-to-DEX compilation ? |
| 612 | // Do not optimize if a VerifiedMethod is missing. SafeCast elision, for example, relies on |
| 613 | // it. |
| 614 | compiled_method = optimizer::ArtCompileDEX( |
| 615 | driver, |
| 616 | code_item, |
| 617 | access_flags, |
| 618 | invoke_type, |
| 619 | class_def_idx, |
| 620 | method_idx, |
| 621 | class_loader, |
| 622 | dex_file, |
| 623 | has_verified_method |
| 624 | ? dex_to_dex_compilation_level |
| 625 | : optimizer::DexToDexCompilationLevel::kRequired); |
| 626 | } |
| 627 | } |
| 628 | if (kTimeCompileMethod) { |
| 629 | uint64_t duration_ns = NanoTime() - start_ns; |
| 630 | if (duration_ns > MsToNs(driver->GetCompiler()->GetMaximumCompilationTimeBeforeWarning())) { |
| 631 | LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) |
| 632 | << " took " << PrettyDuration(duration_ns); |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | if (compiled_method != nullptr) { |
| 637 | // Count non-relative linker patches. |
| 638 | size_t non_relative_linker_patch_count = 0u; |
| 639 | for (const LinkerPatch& patch : compiled_method->GetPatches()) { |
| 640 | if (!patch.IsPcRelative()) { |
| 641 | ++non_relative_linker_patch_count; |
| 642 | } |
| 643 | } |
| 644 | bool compile_pic = driver->GetCompilerOptions().GetCompilePic(); // Off by default |
| 645 | // When compiling with PIC, there should be zero non-relative linker patches |
| 646 | CHECK(!compile_pic || non_relative_linker_patch_count == 0u); |
| 647 | |
| 648 | driver->AddCompiledMethod(method_ref, compiled_method, non_relative_linker_patch_count); |
| 649 | } |
| 650 | |
| 651 | // Done compiling, delete the verified method to reduce native memory usage. Do not delete in |
| 652 | // optimizing compiler, which may need the verified method again for inlining. |
| 653 | if (driver->GetCompilerKind() != Compiler::kOptimizing) { |
| 654 | driver->GetVerificationResults()->RemoveVerifiedMethod(method_ref); |
| 655 | } |
| 656 | |
| 657 | if (self->IsExceptionPending()) { |
| 658 | ScopedObjectAccess soa(self); |
| 659 | LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" |
| 660 | << self->GetException()->Dump(); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 661 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 662 | } |
| 663 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 664 | void CompilerDriver::CompileOne(Thread* self, ArtMethod* method, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 665 | DCHECK(!Runtime::Current()->IsStarted()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 666 | jobject jclass_loader; |
| 667 | const DexFile* dex_file; |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 668 | uint16_t class_def_idx; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 669 | uint32_t method_idx = method->GetDexMethodIndex(); |
| 670 | uint32_t access_flags = method->GetAccessFlags(); |
| 671 | InvokeType invoke_type = method->GetInvokeType(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 672 | { |
| 673 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 674 | ScopedLocalRef<jobject> local_class_loader( |
| 675 | soa.Env(), soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 676 | jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); |
| 677 | // Find the dex_file |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 678 | dex_file = method->GetDexFile(); |
| 679 | class_def_idx = method->GetClassDefIndex(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 680 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 681 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 682 | self->TransitionFromRunnableToSuspended(kNative); |
| 683 | |
| 684 | std::vector<const DexFile*> dex_files; |
| 685 | dex_files.push_back(dex_file); |
| 686 | |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 687 | std::unique_ptr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 688 | PreCompile(jclass_loader, dex_files, thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 689 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 690 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 691 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 692 | GetDexToDexCompilationLevel(self, |
| 693 | *this, |
| 694 | jclass_loader, |
| 695 | *dex_file, |
| 696 | dex_file->GetClassDef(class_def_idx)); |
| 697 | |
| 698 | CompileMethod(self, |
| 699 | this, |
| 700 | code_item, |
| 701 | access_flags, |
| 702 | invoke_type, |
| 703 | class_def_idx, |
| 704 | method_idx, |
| 705 | jclass_loader, |
| 706 | *dex_file, |
| 707 | dex_to_dex_compilation_level, |
| 708 | true); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 709 | |
| 710 | self->GetJniEnv()->DeleteGlobalRef(jclass_loader); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 711 | self->TransitionFromSuspendedToRunnable(); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 712 | } |
| 713 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 714 | CompiledMethod* CompilerDriver::CompileArtMethod(Thread* self, ArtMethod* method) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 715 | const uint32_t method_idx = method->GetDexMethodIndex(); |
| 716 | const uint32_t access_flags = method->GetAccessFlags(); |
| 717 | const InvokeType invoke_type = method->GetInvokeType(); |
| 718 | StackHandleScope<1> hs(self); |
| 719 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 720 | method->GetDeclaringClass()->GetClassLoader())); |
| 721 | jobject jclass_loader = class_loader.ToJObject(); |
| 722 | const DexFile* dex_file = method->GetDexFile(); |
| 723 | const uint16_t class_def_idx = method->GetClassDefIndex(); |
| 724 | const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 725 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 726 | GetDexToDexCompilationLevel(self, *this, class_loader, *dex_file, class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 727 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
| 728 | self->TransitionFromRunnableToSuspended(kNative); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 729 | CompileMethod(self, |
| 730 | this, |
| 731 | code_item, |
| 732 | access_flags, |
| 733 | invoke_type, |
| 734 | class_def_idx, |
| 735 | method_idx, |
| 736 | jclass_loader, |
| 737 | *dex_file, |
| 738 | dex_to_dex_compilation_level, |
| 739 | true); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 740 | auto* compiled_method = GetCompiledMethod(MethodReference(dex_file, method_idx)); |
| 741 | self->TransitionFromSuspendedToRunnable(); |
| 742 | return compiled_method; |
| 743 | } |
| 744 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 745 | void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 746 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 747 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 748 | const DexFile* dex_file = dex_files[i]; |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 749 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 750 | ResolveDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 751 | } |
| 752 | } |
| 753 | |
| 754 | void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 755 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 756 | LoadImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 757 | VLOG(compiler) << "LoadImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 758 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 759 | const bool verification_enabled = compiler_options_->IsVerificationEnabled(); |
| 760 | const bool never_verify = compiler_options_->NeverVerify(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 761 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 762 | // We need to resolve for never_verify since it needs to run dex to dex to add the |
| 763 | // RETURN_VOID_NO_BARRIER. |
| 764 | if (never_verify || verification_enabled) { |
| 765 | Resolve(class_loader, dex_files, thread_pool, timings); |
| 766 | VLOG(compiler) << "Resolve: " << GetMemoryUsageString(false); |
| 767 | } |
| 768 | |
| 769 | if (never_verify) { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 770 | VLOG(compiler) << "Verify none mode specified, skipping verification."; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 771 | SetVerified(class_loader, dex_files, thread_pool, timings); |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | if (!verification_enabled) { |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 775 | return; |
| 776 | } |
| 777 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 778 | Verify(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 779 | VLOG(compiler) << "Verify: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 780 | |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 781 | if (had_hard_verifier_failure_ && GetCompilerOptions().AbortOnHardVerifierFailure()) { |
| 782 | LOG(FATAL) << "Had a hard failure verifying all classes, and was asked to abort in such " |
| 783 | << "situations. Please check the log."; |
| 784 | } |
| 785 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 786 | InitializeClasses(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 787 | VLOG(compiler) << "InitializeClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 788 | |
| 789 | UpdateImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 790 | VLOG(compiler) << "UpdateImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 791 | } |
| 792 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 793 | bool CompilerDriver::IsImageClass(const char* descriptor) const { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 794 | if (!IsImage()) { |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 795 | // NOTE: Currently unreachable, all callers check IsImage(). |
| 796 | return false; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 797 | } else { |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 798 | return image_classes_->find(descriptor) != image_classes_->end(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 799 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 800 | } |
| 801 | |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 802 | bool CompilerDriver::IsClassToCompile(const char* descriptor) const { |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 803 | if (kRestrictCompilationFiltersToImage && !IsImage()) { |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 804 | return true; |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 805 | } |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 806 | |
| 807 | if (classes_to_compile_ == nullptr) { |
| 808 | return true; |
| 809 | } |
| 810 | return classes_to_compile_->find(descriptor) != classes_to_compile_->end(); |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 811 | } |
| 812 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 813 | bool CompilerDriver::IsMethodToCompile(const MethodReference& method_ref) const { |
| 814 | if (kRestrictCompilationFiltersToImage && !IsImage()) { |
| 815 | return true; |
| 816 | } |
| 817 | |
| 818 | if (methods_to_compile_ == nullptr) { |
| 819 | return true; |
| 820 | } |
| 821 | |
| 822 | std::string tmp = PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file, true); |
| 823 | return methods_to_compile_->find(tmp.c_str()) != methods_to_compile_->end(); |
| 824 | } |
| 825 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 826 | class ResolveCatchBlockExceptionsClassVisitor : public ClassVisitor { |
| 827 | public: |
| 828 | ResolveCatchBlockExceptionsClassVisitor( |
| 829 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve) |
| 830 | : exceptions_to_resolve_(exceptions_to_resolve) {} |
| 831 | |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 832 | virtual bool Visit(mirror::Class* c) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 833 | const auto pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
| 834 | for (auto& m : c->GetVirtualMethods(pointer_size)) { |
| 835 | ResolveExceptionsForMethod(&m); |
| 836 | } |
| 837 | for (auto& m : c->GetDirectMethods(pointer_size)) { |
| 838 | ResolveExceptionsForMethod(&m); |
| 839 | } |
| 840 | return true; |
| 841 | } |
| 842 | |
| 843 | private: |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 844 | void ResolveExceptionsForMethod(ArtMethod* method_handle) SHARED_REQUIRES(Locks::mutator_lock_) { |
| 845 | const DexFile::CodeItem* code_item = method_handle->GetCodeItem(); |
| 846 | if (code_item == nullptr) { |
| 847 | return; // native or abstract method |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 848 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 849 | if (code_item->tries_size_ == 0) { |
| 850 | return; // nothing to process |
| 851 | } |
| 852 | const uint8_t* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); |
| 853 | size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 854 | for (size_t i = 0; i < num_encoded_catch_handlers; i++) { |
| 855 | int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); |
| 856 | bool has_catch_all = false; |
| 857 | if (encoded_catch_handler_size <= 0) { |
| 858 | encoded_catch_handler_size = -encoded_catch_handler_size; |
| 859 | has_catch_all = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 860 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 861 | for (int32_t j = 0; j < encoded_catch_handler_size; j++) { |
| 862 | uint16_t encoded_catch_handler_handlers_type_idx = |
| 863 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 864 | // Add to set of types to resolve if not already in the dex cache resolved types |
| 865 | if (!method_handle->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { |
| 866 | exceptions_to_resolve_.emplace(encoded_catch_handler_handlers_type_idx, |
| 867 | method_handle->GetDexFile()); |
| 868 | } |
| 869 | // ignore address associated with catch handler |
| 870 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 871 | } |
| 872 | if (has_catch_all) { |
| 873 | // ignore catch all address |
| 874 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 875 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 876 | } |
| 877 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 878 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 879 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve_; |
| 880 | }; |
| 881 | |
| 882 | class RecordImageClassesVisitor : public ClassVisitor { |
| 883 | public: |
| 884 | explicit RecordImageClassesVisitor(std::unordered_set<std::string>* image_classes) |
| 885 | : image_classes_(image_classes) {} |
| 886 | |
| 887 | bool Visit(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 888 | std::string temp; |
| 889 | image_classes_->insert(klass->GetDescriptor(&temp)); |
| 890 | return true; |
| 891 | } |
| 892 | |
| 893 | private: |
| 894 | std::unordered_set<std::string>* const image_classes_; |
| 895 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 896 | |
| 897 | // Make a list of descriptors for classes to include in the image |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 898 | void CompilerDriver::LoadImageClasses(TimingLogger* timings) { |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 899 | CHECK(timings != nullptr); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 900 | if (!IsImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 901 | return; |
| 902 | } |
| 903 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 904 | TimingLogger::ScopedTiming t("LoadImageClasses", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 905 | // Make a first class to load all classes explicitly listed in the file |
| 906 | Thread* self = Thread::Current(); |
| 907 | ScopedObjectAccess soa(self); |
| 908 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 909 | CHECK(image_classes_.get() != nullptr); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 910 | for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 911 | const std::string& descriptor(*it); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 912 | StackHandleScope<1> hs(self); |
| 913 | Handle<mirror::Class> klass( |
| 914 | hs.NewHandle(class_linker->FindSystemClass(self, descriptor.c_str()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 915 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 916 | VLOG(compiler) << "Failed to find class " << descriptor; |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 917 | image_classes_->erase(it++); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 918 | self->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 919 | } else { |
| 920 | ++it; |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | // Resolve exception classes referenced by the loaded classes. The catch logic assumes |
| 925 | // exceptions are resolved by the verifier when there is a catch block in an interested method. |
| 926 | // 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] | 927 | std::set<std::pair<uint16_t, const DexFile*>> unresolved_exception_types; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 928 | StackHandleScope<1> hs(self); |
| 929 | Handle<mirror::Class> java_lang_Throwable( |
| 930 | hs.NewHandle(class_linker->FindSystemClass(self, "Ljava/lang/Throwable;"))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 931 | do { |
| 932 | unresolved_exception_types.clear(); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 933 | ResolveCatchBlockExceptionsClassVisitor visitor(unresolved_exception_types); |
| 934 | class_linker->VisitClasses(&visitor); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 935 | for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { |
| 936 | uint16_t exception_type_idx = exception_type.first; |
| 937 | const DexFile* dex_file = exception_type.second; |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 938 | StackHandleScope<2> hs2(self); |
| 939 | Handle<mirror::DexCache> dex_cache(hs2.NewHandle(class_linker->FindDexCache(*dex_file))); |
| 940 | Handle<mirror::Class> klass(hs2.NewHandle( |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 941 | class_linker->ResolveType(*dex_file, exception_type_idx, dex_cache, |
| 942 | NullHandle<mirror::ClassLoader>()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 943 | if (klass.Get() == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 944 | const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); |
| 945 | const char* descriptor = dex_file->GetTypeDescriptor(type_id); |
| 946 | LOG(FATAL) << "Failed to resolve class " << descriptor; |
| 947 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 948 | DCHECK(java_lang_Throwable->IsAssignableFrom(klass.Get())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 949 | } |
| 950 | // Resolving exceptions may load classes that reference more exceptions, iterate until no |
| 951 | // more are found |
| 952 | } while (!unresolved_exception_types.empty()); |
| 953 | |
| 954 | // We walk the roots looking for classes so that we'll pick up the |
| 955 | // above classes plus any classes them depend on such super |
| 956 | // classes, interfaces, and the required ClassLinker roots. |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 957 | RecordImageClassesVisitor visitor(image_classes_.get()); |
| 958 | class_linker->VisitClasses(&visitor); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 959 | |
| 960 | CHECK_NE(image_classes_->size(), 0U); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 961 | } |
| 962 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 963 | static void MaybeAddToImageClasses(Handle<mirror::Class> c, |
| 964 | std::unordered_set<std::string>* image_classes) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 965 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 966 | Thread* self = Thread::Current(); |
| 967 | StackHandleScope<1> hs(self); |
| 968 | // 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] | 969 | MutableHandle<mirror::Class> klass(hs.NewHandle(c.Get())); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 970 | std::string temp; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 971 | const size_t pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 972 | while (!klass->IsObjectClass()) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 973 | const char* descriptor = klass->GetDescriptor(&temp); |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 974 | std::pair<std::unordered_set<std::string>::iterator, bool> result = |
| 975 | image_classes->insert(descriptor); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 976 | if (!result.second) { // Previously inserted. |
| 977 | break; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 978 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 979 | VLOG(compiler) << "Adding " << descriptor << " to image classes"; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 980 | for (size_t i = 0; i < klass->NumDirectInterfaces(); ++i) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 981 | StackHandleScope<1> hs2(self); |
| 982 | MaybeAddToImageClasses(hs2.NewHandle(mirror::Class::GetDirectInterface(self, klass, i)), |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 983 | image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 984 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 985 | for (auto& m : c->GetVirtualMethods(pointer_size)) { |
| 986 | if (m.IsMiranda() || (true)) { |
| 987 | StackHandleScope<1> hs2(self); |
| 988 | MaybeAddToImageClasses(hs2.NewHandle(m.GetDeclaringClass()), image_classes); |
| 989 | } |
| 990 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 991 | if (klass->IsArrayClass()) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 992 | StackHandleScope<1> hs2(self); |
| 993 | MaybeAddToImageClasses(hs2.NewHandle(klass->GetComponentType()), image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 994 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 995 | klass.Assign(klass->GetSuperClass()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 996 | } |
| 997 | } |
| 998 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 999 | // Keeps all the data for the update together. Also doubles as the reference visitor. |
| 1000 | // Note: we can use object pointers because we suspend all threads. |
| 1001 | class ClinitImageUpdate { |
| 1002 | public: |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1003 | static ClinitImageUpdate* Create(std::unordered_set<std::string>* image_class_descriptors, |
| 1004 | Thread* self, ClassLinker* linker, std::string* error_msg) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1005 | std::unique_ptr<ClinitImageUpdate> res(new ClinitImageUpdate(image_class_descriptors, self, |
| 1006 | linker)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1007 | if (res->dex_cache_class_ == nullptr) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1008 | *error_msg = "Could not find DexCache class."; |
| 1009 | return nullptr; |
| 1010 | } |
| 1011 | |
| 1012 | return res.release(); |
| 1013 | } |
| 1014 | |
| 1015 | ~ClinitImageUpdate() { |
| 1016 | // Allow others to suspend again. |
| 1017 | self_->EndAssertNoThreadSuspension(old_cause_); |
| 1018 | } |
| 1019 | |
| 1020 | // Visitor for VisitReferences. |
| 1021 | void operator()(mirror::Object* object, MemberOffset field_offset, bool /* is_static */) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1022 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1023 | mirror::Object* ref = object->GetFieldObject<mirror::Object>(field_offset); |
| 1024 | if (ref != nullptr) { |
| 1025 | VisitClinitClassesObject(ref); |
| 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | // java.lang.Reference visitor for VisitReferences. |
Mathieu Chartier | da7c650 | 2015-07-23 16:01:26 -0700 | [diff] [blame] | 1030 | void operator()(mirror::Class* klass ATTRIBUTE_UNUSED, mirror::Reference* ref ATTRIBUTE_UNUSED) |
| 1031 | const {} |
| 1032 | |
| 1033 | // Ignore class native roots. |
| 1034 | void VisitRootIfNonNull(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) |
| 1035 | const {} |
| 1036 | void VisitRoot(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) const {} |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1037 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1038 | void Walk() SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1039 | // Use the initial classes as roots for a search. |
| 1040 | for (mirror::Class* klass_root : image_classes_) { |
| 1041 | VisitClinitClassesObject(klass_root); |
| 1042 | } |
| 1043 | } |
| 1044 | |
| 1045 | private: |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1046 | class FindImageClassesVisitor : public ClassVisitor { |
| 1047 | public: |
| 1048 | explicit FindImageClassesVisitor(ClinitImageUpdate* data) : data_(data) {} |
| 1049 | |
| 1050 | bool Visit(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 1051 | std::string temp; |
| 1052 | const char* name = klass->GetDescriptor(&temp); |
| 1053 | if (data_->image_class_descriptors_->find(name) != data_->image_class_descriptors_->end()) { |
| 1054 | data_->image_classes_.push_back(klass); |
| 1055 | } else { |
| 1056 | // Check whether it is initialized and has a clinit. They must be kept, too. |
| 1057 | if (klass->IsInitialized() && klass->FindClassInitializer( |
| 1058 | Runtime::Current()->GetClassLinker()->GetImagePointerSize()) != nullptr) { |
| 1059 | data_->image_classes_.push_back(klass); |
| 1060 | } |
| 1061 | } |
| 1062 | return true; |
| 1063 | } |
| 1064 | |
| 1065 | private: |
| 1066 | ClinitImageUpdate* const data_; |
| 1067 | }; |
| 1068 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1069 | ClinitImageUpdate(std::unordered_set<std::string>* image_class_descriptors, Thread* self, |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1070 | ClassLinker* linker) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1071 | SHARED_REQUIRES(Locks::mutator_lock_) : |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1072 | image_class_descriptors_(image_class_descriptors), self_(self) { |
| 1073 | CHECK(linker != nullptr); |
| 1074 | CHECK(image_class_descriptors != nullptr); |
| 1075 | |
| 1076 | // Make sure nobody interferes with us. |
| 1077 | old_cause_ = self->StartAssertNoThreadSuspension("Boot image closure"); |
| 1078 | |
| 1079 | // Find the interesting classes. |
Andreas Gampe | dc8b63c | 2014-12-02 14:39:52 -0800 | [diff] [blame] | 1080 | dex_cache_class_ = linker->LookupClass(self, "Ljava/lang/DexCache;", |
| 1081 | ComputeModifiedUtf8Hash("Ljava/lang/DexCache;"), nullptr); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1082 | |
| 1083 | // Find all the already-marked classes. |
| 1084 | WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1085 | FindImageClassesVisitor visitor(this); |
| 1086 | linker->VisitClasses(&visitor); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | void VisitClinitClassesObject(mirror::Object* object) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1090 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1091 | DCHECK(object != nullptr); |
| 1092 | if (marked_objects_.find(object) != marked_objects_.end()) { |
| 1093 | // Already processed. |
| 1094 | return; |
| 1095 | } |
| 1096 | |
| 1097 | // Mark it. |
| 1098 | marked_objects_.insert(object); |
| 1099 | |
| 1100 | if (object->IsClass()) { |
| 1101 | // If it is a class, add it. |
| 1102 | StackHandleScope<1> hs(self_); |
| 1103 | MaybeAddToImageClasses(hs.NewHandle(object->AsClass()), image_class_descriptors_); |
| 1104 | } else { |
| 1105 | // Else visit the object's class. |
| 1106 | VisitClinitClassesObject(object->GetClass()); |
| 1107 | } |
| 1108 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1109 | // If it is not a DexCache, visit all references. |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1110 | mirror::Class* klass = object->GetClass(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1111 | if (klass != dex_cache_class_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1112 | object->VisitReferences<false /* visit class */>(*this, *this); |
| 1113 | } |
| 1114 | } |
| 1115 | |
| 1116 | mutable std::unordered_set<mirror::Object*> marked_objects_; |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1117 | std::unordered_set<std::string>* const image_class_descriptors_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1118 | std::vector<mirror::Class*> image_classes_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1119 | const mirror::Class* dex_cache_class_; |
| 1120 | Thread* const self_; |
| 1121 | const char* old_cause_; |
| 1122 | |
| 1123 | DISALLOW_COPY_AND_ASSIGN(ClinitImageUpdate); |
| 1124 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1125 | |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1126 | void CompilerDriver::UpdateImageClasses(TimingLogger* timings) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1127 | if (IsImage()) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1128 | TimingLogger::ScopedTiming t("UpdateImageClasses", timings); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1129 | |
| 1130 | Runtime* current = Runtime::Current(); |
| 1131 | |
| 1132 | // Suspend all threads. |
Mathieu Chartier | bf9fc58 | 2015-03-13 17:21:25 -0700 | [diff] [blame] | 1133 | current->GetThreadList()->SuspendAll(__FUNCTION__); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1134 | |
| 1135 | std::string error_msg; |
| 1136 | std::unique_ptr<ClinitImageUpdate> update(ClinitImageUpdate::Create(image_classes_.get(), |
| 1137 | Thread::Current(), |
| 1138 | current->GetClassLinker(), |
| 1139 | &error_msg)); |
| 1140 | CHECK(update.get() != nullptr) << error_msg; // TODO: Soft failure? |
| 1141 | |
| 1142 | // Do the marking. |
| 1143 | update->Walk(); |
| 1144 | |
| 1145 | // Resume threads. |
| 1146 | current->GetThreadList()->ResumeAll(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1147 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1148 | } |
| 1149 | |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 1150 | bool CompilerDriver::CanAssumeClassIsLoaded(mirror::Class* klass) { |
| 1151 | Runtime* runtime = Runtime::Current(); |
| 1152 | if (!runtime->IsAotCompiler()) { |
| 1153 | DCHECK(runtime->UseJit()); |
| 1154 | // Having the klass reference here implies that the klass is already loaded. |
| 1155 | return true; |
| 1156 | } |
| 1157 | if (!IsImage()) { |
| 1158 | // Assume loaded only if klass is in the boot image. App classes cannot be assumed |
| 1159 | // loaded because we don't even know what class loader will be used to load them. |
| 1160 | bool class_in_image = runtime->GetHeap()->FindSpaceFromObject(klass, false)->IsImageSpace(); |
| 1161 | return class_in_image; |
| 1162 | } |
| 1163 | std::string temp; |
| 1164 | const char* descriptor = klass->GetDescriptor(&temp); |
| 1165 | return IsImageClass(descriptor); |
| 1166 | } |
| 1167 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1168 | bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 1169 | if (IsImage() && |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1170 | IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { |
Andreas Gampe | 58a5af8 | 2014-07-31 16:23:49 -0700 | [diff] [blame] | 1171 | { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1172 | ScopedObjectAccess soa(Thread::Current()); |
| 1173 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 1174 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 58a5af8 | 2014-07-31 16:23:49 -0700 | [diff] [blame] | 1175 | if (resolved_class == nullptr) { |
| 1176 | // Erroneous class. |
| 1177 | stats_->TypeNotInDexCache(); |
| 1178 | return false; |
| 1179 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1180 | } |
| 1181 | stats_->TypeInDexCache(); |
| 1182 | return true; |
| 1183 | } else { |
| 1184 | stats_->TypeNotInDexCache(); |
| 1185 | return false; |
| 1186 | } |
| 1187 | } |
| 1188 | |
| 1189 | bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, |
| 1190 | uint32_t string_idx) { |
| 1191 | // See also Compiler::ResolveDexFile |
| 1192 | |
| 1193 | bool result = false; |
| 1194 | if (IsImage()) { |
| 1195 | // We resolve all const-string strings when building for the image. |
| 1196 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1197 | StackHandleScope<1> hs(soa.Self()); |
| 1198 | Handle<mirror::DexCache> dex_cache( |
| 1199 | hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(dex_file))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1200 | Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); |
| 1201 | result = true; |
| 1202 | } |
| 1203 | if (result) { |
| 1204 | stats_->StringInDexCache(); |
| 1205 | } else { |
| 1206 | stats_->StringNotInDexCache(); |
| 1207 | } |
| 1208 | return result; |
| 1209 | } |
| 1210 | |
| 1211 | bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, |
| 1212 | uint32_t type_idx, |
| 1213 | bool* type_known_final, bool* type_known_abstract, |
| 1214 | bool* equals_referrers_class) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1215 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1216 | *type_known_final = false; |
| 1217 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1218 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1219 | *type_known_abstract = false; |
| 1220 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1221 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1222 | *equals_referrers_class = false; |
| 1223 | } |
| 1224 | ScopedObjectAccess soa(Thread::Current()); |
| 1225 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 1226 | // Get type from dex cache assuming it was populated by the verifier |
| 1227 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1228 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1229 | stats_->TypeNeedsAccessCheck(); |
| 1230 | return false; // Unknown class needs access checks. |
| 1231 | } |
| 1232 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1233 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1234 | *equals_referrers_class = (method_id.class_idx_ == type_idx); |
| 1235 | } |
| 1236 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1237 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1238 | stats_->TypeNeedsAccessCheck(); |
| 1239 | return false; // Incomplete referrer knowledge needs access check. |
| 1240 | } |
| 1241 | // Perform access check, will return true if access is ok or false if we're going to have to |
| 1242 | // check this at runtime (for example for class loaders). |
| 1243 | bool result = referrer_class->CanAccess(resolved_class); |
| 1244 | if (result) { |
| 1245 | stats_->TypeDoesntNeedAccessCheck(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1246 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1247 | *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); |
| 1248 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1249 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1250 | *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); |
| 1251 | } |
| 1252 | } else { |
| 1253 | stats_->TypeNeedsAccessCheck(); |
| 1254 | } |
| 1255 | return result; |
| 1256 | } |
| 1257 | |
| 1258 | bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, |
| 1259 | const DexFile& dex_file, |
| 1260 | uint32_t type_idx) { |
| 1261 | ScopedObjectAccess soa(Thread::Current()); |
| 1262 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 1263 | // Get type from dex cache assuming it was populated by the verifier. |
| 1264 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1265 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1266 | stats_->TypeNeedsAccessCheck(); |
| 1267 | return false; // Unknown class needs access checks. |
| 1268 | } |
| 1269 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
| 1270 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1271 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1272 | stats_->TypeNeedsAccessCheck(); |
| 1273 | return false; // Incomplete referrer knowledge needs access check. |
| 1274 | } |
| 1275 | // Perform access and instantiable checks, will return true if access is ok or false if we're |
| 1276 | // going to have to check this at runtime (for example for class loaders). |
| 1277 | bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); |
| 1278 | if (result) { |
| 1279 | stats_->TypeDoesntNeedAccessCheck(); |
| 1280 | } else { |
| 1281 | stats_->TypeNeedsAccessCheck(); |
| 1282 | } |
| 1283 | return result; |
| 1284 | } |
| 1285 | |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1286 | bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, |
| 1287 | bool* is_type_initialized, bool* use_direct_type_ptr, |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1288 | uintptr_t* direct_type_ptr, bool* out_is_finalizable) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1289 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1290 | Runtime* runtime = Runtime::Current(); |
| 1291 | mirror::DexCache* dex_cache = runtime->GetClassLinker()->FindDexCache(dex_file); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1292 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1293 | if (resolved_class == nullptr) { |
| 1294 | return false; |
| 1295 | } |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1296 | if (GetCompilerOptions().GetCompilePic()) { |
| 1297 | // Do not allow a direct class pointer to be used when compiling for position-independent |
| 1298 | return false; |
| 1299 | } |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1300 | *out_is_finalizable = resolved_class->IsFinalizable(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1301 | gc::Heap* heap = runtime->GetHeap(); |
| 1302 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1303 | const bool support_boot_image_fixup = GetSupportBootImageFixup(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1304 | if (compiling_boot) { |
| 1305 | // boot -> boot class pointers. |
| 1306 | // True if the class is in the image at boot compiling time. |
| 1307 | const bool is_image_class = IsImage() && IsImageClass( |
| 1308 | dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); |
| 1309 | // True if pc relative load works. |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1310 | if (is_image_class && support_boot_image_fixup) { |
| 1311 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1312 | *use_direct_type_ptr = false; |
| 1313 | *direct_type_ptr = 0; |
| 1314 | return true; |
| 1315 | } else { |
| 1316 | return false; |
| 1317 | } |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1318 | } else if (runtime->UseJit() && !heap->IsMovableObject(resolved_class)) { |
| 1319 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1320 | // If the class may move around, then don't embed it as a direct pointer. |
| 1321 | *use_direct_type_ptr = true; |
| 1322 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1323 | return true; |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1324 | } else { |
| 1325 | // True if the class is in the image at app compiling time. |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1326 | const bool class_in_image = heap->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1327 | if (class_in_image && support_boot_image_fixup) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1328 | // boot -> app class pointers. |
| 1329 | *is_type_initialized = resolved_class->IsInitialized(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1330 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1331 | *use_direct_type_ptr = !GetCompilerOptions().GetIncludePatchInformation(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1332 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1333 | return true; |
| 1334 | } else { |
| 1335 | // app -> app class pointers. |
| 1336 | // Give up because app does not have an image and class |
| 1337 | // isn't created at compile time. TODO: implement this |
| 1338 | // if/when each app gets an image. |
| 1339 | return false; |
| 1340 | } |
| 1341 | } |
| 1342 | } |
| 1343 | |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1344 | bool CompilerDriver::CanEmbedReferenceTypeInCode(ClassReference* ref, |
| 1345 | bool* use_direct_ptr, |
| 1346 | uintptr_t* direct_type_ptr) { |
| 1347 | CHECK(ref != nullptr); |
| 1348 | CHECK(use_direct_ptr != nullptr); |
| 1349 | CHECK(direct_type_ptr != nullptr); |
| 1350 | |
| 1351 | ScopedObjectAccess soa(Thread::Current()); |
| 1352 | mirror::Class* reference_class = mirror::Reference::GetJavaLangRefReference(); |
Andreas Gampe | 928f72b | 2014-09-09 19:53:48 -0700 | [diff] [blame] | 1353 | bool is_initialized = false; |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1354 | bool unused_finalizable; |
| 1355 | // Make sure we have a finished Reference class object before attempting to use it. |
| 1356 | if (!CanEmbedTypeInCode(*reference_class->GetDexCache()->GetDexFile(), |
| 1357 | reference_class->GetDexTypeIndex(), &is_initialized, |
| 1358 | use_direct_ptr, direct_type_ptr, &unused_finalizable) || |
| 1359 | !is_initialized) { |
| 1360 | return false; |
| 1361 | } |
| 1362 | ref->first = &reference_class->GetDexFile(); |
| 1363 | ref->second = reference_class->GetDexClassDefIndex(); |
| 1364 | return true; |
| 1365 | } |
| 1366 | |
| 1367 | uint32_t CompilerDriver::GetReferenceSlowFlagOffset() const { |
| 1368 | ScopedObjectAccess soa(Thread::Current()); |
| 1369 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1370 | DCHECK(klass->IsInitialized()); |
| 1371 | return klass->GetSlowPathFlagOffset().Uint32Value(); |
| 1372 | } |
| 1373 | |
| 1374 | uint32_t CompilerDriver::GetReferenceDisableFlagOffset() const { |
| 1375 | ScopedObjectAccess soa(Thread::Current()); |
| 1376 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1377 | DCHECK(klass->IsInitialized()); |
| 1378 | return klass->GetDisableIntrinsicFlagOffset().Uint32Value(); |
| 1379 | } |
| 1380 | |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1381 | DexCacheArraysLayout CompilerDriver::GetDexCacheArraysLayout(const DexFile* dex_file) { |
| 1382 | // Currently only image dex caches have fixed array layout. |
| 1383 | return IsImage() && GetSupportBootImageFixup() |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1384 | ? DexCacheArraysLayout(GetInstructionSetPointerSize(instruction_set_), dex_file) |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1385 | : DexCacheArraysLayout(); |
| 1386 | } |
| 1387 | |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1388 | void CompilerDriver::ProcessedInstanceField(bool resolved) { |
| 1389 | if (!resolved) { |
| 1390 | stats_->UnresolvedInstanceField(); |
| 1391 | } else { |
| 1392 | stats_->ResolvedInstanceField(); |
| 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | void CompilerDriver::ProcessedStaticField(bool resolved, bool local) { |
| 1397 | if (!resolved) { |
| 1398 | stats_->UnresolvedStaticField(); |
| 1399 | } else if (local) { |
| 1400 | stats_->ResolvedLocalStaticField(); |
| 1401 | } else { |
| 1402 | stats_->ResolvedStaticField(); |
| 1403 | } |
| 1404 | } |
| 1405 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1406 | void CompilerDriver::ProcessedInvoke(InvokeType invoke_type, int flags) { |
| 1407 | stats_->ProcessedInvoke(invoke_type, flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1408 | } |
| 1409 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1410 | ArtField* CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, |
| 1411 | const DexCompilationUnit* mUnit, bool is_put, |
| 1412 | const ScopedObjectAccess& soa) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1413 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1414 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1415 | mirror::Class* referrer_class; |
| 1416 | mirror::DexCache* dex_cache; |
| 1417 | { |
Roland Levillain | 2b846ed | 2015-05-19 10:44:25 +0100 | [diff] [blame] | 1418 | StackHandleScope<2> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1419 | Handle<mirror::DexCache> dex_cache_handle( |
| 1420 | hs.NewHandle(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()))); |
| 1421 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1422 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1423 | resolved_field = |
| 1424 | ResolveField(soa, dex_cache_handle, class_loader_handle, mUnit, field_idx, false); |
| 1425 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1426 | ? ResolveCompilingMethodsClass(soa, dex_cache_handle, class_loader_handle, mUnit) : nullptr; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1427 | dex_cache = dex_cache_handle.Get(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1428 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1429 | bool can_link = false; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1430 | if (resolved_field != nullptr && referrer_class != nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1431 | std::pair<bool, bool> fast_path = IsFastInstanceField( |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1432 | dex_cache, referrer_class, resolved_field, field_idx); |
| 1433 | can_link = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1434 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1435 | ProcessedInstanceField(can_link); |
| 1436 | return can_link ? resolved_field : nullptr; |
| 1437 | } |
| 1438 | |
| 1439 | bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
| 1440 | bool is_put, MemberOffset* field_offset, |
| 1441 | bool* is_volatile) { |
| 1442 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1443 | ArtField* resolved_field = ComputeInstanceFieldInfo(field_idx, mUnit, is_put, soa); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1444 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1445 | if (resolved_field == nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1446 | // Conservative defaults. |
| 1447 | *is_volatile = true; |
| 1448 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1449 | return false; |
| 1450 | } else { |
| 1451 | *is_volatile = resolved_field->IsVolatile(); |
| 1452 | *field_offset = resolved_field->GetOffset(); |
| 1453 | return true; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1454 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1455 | } |
| 1456 | |
| 1457 | bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1458 | bool is_put, MemberOffset* field_offset, |
| 1459 | uint32_t* storage_index, bool* is_referrers_class, |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1460 | bool* is_volatile, bool* is_initialized, |
| 1461 | Primitive::Type* type) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1462 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1463 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1464 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1465 | mirror::Class* referrer_class; |
| 1466 | mirror::DexCache* dex_cache; |
| 1467 | { |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1468 | StackHandleScope<2> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1469 | Handle<mirror::DexCache> dex_cache_handle( |
| 1470 | hs.NewHandle(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()))); |
| 1471 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1472 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1473 | resolved_field = |
| 1474 | ResolveField(soa, dex_cache_handle, class_loader_handle, mUnit, field_idx, true); |
| 1475 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1476 | ? ResolveCompilingMethodsClass(soa, dex_cache_handle, class_loader_handle, mUnit) : nullptr; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1477 | dex_cache = dex_cache_handle.Get(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1478 | } |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1479 | bool result = false; |
| 1480 | if (resolved_field != nullptr && referrer_class != nullptr) { |
| 1481 | *is_volatile = IsFieldVolatile(resolved_field); |
| 1482 | std::pair<bool, bool> fast_path = IsFastStaticField( |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1483 | dex_cache, referrer_class, resolved_field, field_idx, storage_index); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1484 | result = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1485 | } |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1486 | if (result) { |
| 1487 | *field_offset = GetFieldOffset(resolved_field); |
| 1488 | *is_referrers_class = IsStaticFieldInReferrerClass(referrer_class, resolved_field); |
| 1489 | // *is_referrers_class == true implies no worrying about class initialization. |
| 1490 | *is_initialized = (*is_referrers_class) || |
| 1491 | (IsStaticFieldsClassInitialized(referrer_class, resolved_field) && |
| 1492 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index)); |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1493 | *type = resolved_field->GetTypeAsPrimitiveType(); |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1494 | } else { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1495 | // Conservative defaults. |
| 1496 | *is_volatile = true; |
| 1497 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
| 1498 | *storage_index = -1; |
| 1499 | *is_referrers_class = false; |
| 1500 | *is_initialized = false; |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1501 | *type = Primitive::kPrimVoid; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1502 | } |
| 1503 | ProcessedStaticField(result, *is_referrers_class); |
| 1504 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1505 | } |
| 1506 | |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1507 | void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, |
| 1508 | bool no_guarantee_of_dex_cache_entry, |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1509 | const mirror::Class* referrer_class, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1510 | ArtMethod* method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1511 | int* stats_flags, |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1512 | MethodReference* target_method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1513 | uintptr_t* direct_code, |
| 1514 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1515 | // For direct and static methods compute possible direct_code and direct_method values, ie |
| 1516 | // an address for the Method* being invoked and an address of the code for that Method*. |
| 1517 | // For interface calls compute a value for direct_method that is the interface method being |
| 1518 | // 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] | 1519 | *direct_code = 0; |
| 1520 | *direct_method = 0; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1521 | Runtime* const runtime = Runtime::Current(); |
| 1522 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1523 | auto* cl = runtime->GetClassLinker(); |
| 1524 | const auto pointer_size = cl->GetImagePointerSize(); |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1525 | bool use_dex_cache = GetCompilerOptions().GetCompilePic(); // Off by default |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1526 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1527 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1528 | const bool force_relocations = (compiling_boot || |
| 1529 | GetCompilerOptions().GetIncludePatchInformation()); |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1530 | if (sharp_type != kStatic && sharp_type != kDirect) { |
| 1531 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1532 | } |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1533 | // TODO: support patching on all architectures. |
| 1534 | use_dex_cache = use_dex_cache || (force_relocations && !support_boot_image_fixup_); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1535 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
| 1536 | bool method_code_in_boot = declaring_class->GetClassLoader() == nullptr; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1537 | if (!use_dex_cache) { |
| 1538 | if (!method_code_in_boot) { |
| 1539 | use_dex_cache = true; |
| 1540 | } else { |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1541 | bool has_clinit_trampoline = |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1542 | method->IsStatic() && !declaring_class->IsInitialized(); |
| 1543 | if (has_clinit_trampoline && declaring_class != referrer_class) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1544 | // Ensure we run the clinit trampoline unless we are invoking a static method in the same |
| 1545 | // class. |
| 1546 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1547 | } |
| 1548 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1549 | } |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1550 | if (runtime->UseJit()) { |
| 1551 | // If we are the JIT, then don't allow a direct call to the interpreter bridge since this will |
| 1552 | // never be updated even after we compile the method. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1553 | if (cl->IsQuickToInterpreterBridge( |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1554 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method)))) { |
| 1555 | use_dex_cache = true; |
| 1556 | } |
| 1557 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1558 | if (method_code_in_boot) { |
| 1559 | *stats_flags |= kFlagDirectCallToBoot | kFlagDirectMethodToBoot; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1560 | } |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1561 | if (!use_dex_cache && force_relocations) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1562 | bool is_in_image; |
| 1563 | if (IsImage()) { |
| 1564 | is_in_image = IsImageClass(method->GetDeclaringClassDescriptor()); |
| 1565 | } else { |
| 1566 | is_in_image = instruction_set_ != kX86 && instruction_set_ != kX86_64 && |
Vladimir Marko | c08ab29 | 2015-06-22 14:35:42 +0100 | [diff] [blame] | 1567 | heap->FindSpaceFromObject(method->GetDeclaringClass(), false)->IsImageSpace() && |
| 1568 | !cl->IsQuickToInterpreterBridge( |
| 1569 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method))); |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1570 | } |
| 1571 | if (!is_in_image) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1572 | // We can only branch directly to Methods that are resolved in the DexCache. |
| 1573 | // Otherwise we won't invoke the resolution trampoline. |
| 1574 | use_dex_cache = true; |
| 1575 | } |
| 1576 | } |
| 1577 | // The method is defined not within this dex file. We need a dex cache slot within the current |
| 1578 | // dex file or direct pointers. |
| 1579 | bool must_use_direct_pointers = false; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1580 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
| 1581 | if (target_method->dex_file == dex_cache->GetDexFile() && |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1582 | !(runtime->UseJit() && dex_cache->GetResolvedMethod( |
| 1583 | method->GetDexMethodIndex(), pointer_size) == nullptr)) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1584 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1585 | } else { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1586 | if (no_guarantee_of_dex_cache_entry) { |
| 1587 | // See if the method is also declared in this dex cache. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1588 | uint32_t dex_method_idx = method->FindDexMethodIndexInOtherDexFile( |
| 1589 | *target_method->dex_file, target_method->dex_method_index); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1590 | if (dex_method_idx != DexFile::kDexNoIndex) { |
| 1591 | target_method->dex_method_index = dex_method_idx; |
| 1592 | } else { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1593 | if (force_relocations && !use_dex_cache) { |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1594 | target_method->dex_method_index = method->GetDexMethodIndex(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1595 | target_method->dex_file = dex_cache->GetDexFile(); |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1596 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1597 | must_use_direct_pointers = true; |
| 1598 | } |
| 1599 | } |
| 1600 | } |
| 1601 | if (use_dex_cache) { |
| 1602 | if (must_use_direct_pointers) { |
| 1603 | // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct |
| 1604 | // pointers are required as the dex cache lacks an appropriate entry. |
| 1605 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1606 | } else { |
| 1607 | *type = sharp_type; |
| 1608 | } |
| 1609 | } else { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1610 | auto* image_space = heap->GetImageSpace(); |
| 1611 | bool method_in_image = false; |
| 1612 | if (image_space != nullptr) { |
| 1613 | const auto& method_section = image_space->GetImageHeader().GetMethodsSection(); |
| 1614 | method_in_image = method_section.Contains( |
| 1615 | reinterpret_cast<uint8_t*>(method) - image_space->Begin()); |
| 1616 | } |
Mathieu Chartier | 6ced409 | 2015-02-27 16:10:48 -0800 | [diff] [blame] | 1617 | if (method_in_image || compiling_boot || runtime->UseJit()) { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1618 | // 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] | 1619 | // In the case where we are the JIT, we can always use direct pointers since we know where |
| 1620 | // the method and its code are / will be. We don't sharpen to interpreter bridge since we |
| 1621 | // check IsQuickToInterpreterBridge above. |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1622 | CHECK(!method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1623 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1624 | *direct_method = force_relocations ? -1 : reinterpret_cast<uintptr_t>(method); |
| 1625 | *direct_code = force_relocations ? -1 : compiler_->GetEntryPointOf(method); |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1626 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1627 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1628 | } else if (!must_use_direct_pointers) { |
| 1629 | // Set the code and rely on the dex cache for the method. |
| 1630 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1631 | if (force_relocations) { |
| 1632 | *direct_code = -1; |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1633 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1634 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1635 | } else { |
| 1636 | *direct_code = compiler_->GetEntryPointOf(method); |
| 1637 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1638 | } else { |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1639 | // Direct pointers were required but none were available. |
| 1640 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1641 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1642 | } |
| 1643 | } |
| 1644 | |
| 1645 | bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1646 | bool update_stats, bool enable_devirtualization, |
| 1647 | InvokeType* invoke_type, MethodReference* target_method, |
| 1648 | int* vtable_idx, uintptr_t* direct_code, |
| 1649 | uintptr_t* direct_method) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1650 | InvokeType orig_invoke_type = *invoke_type; |
| 1651 | int stats_flags = 0; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1652 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1653 | // Try to resolve the method and compiling method's class. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1654 | StackHandleScope<3> hs(soa.Self()); |
| 1655 | Handle<mirror::DexCache> dex_cache( |
| 1656 | hs.NewHandle(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()))); |
| 1657 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 1658 | soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1659 | uint32_t method_idx = target_method->dex_method_index; |
| 1660 | ArtMethod* resolved_method = ResolveMethod( |
| 1661 | soa, dex_cache, class_loader, mUnit, method_idx, orig_invoke_type); |
| 1662 | auto h_referrer_class = hs.NewHandle(resolved_method != nullptr ? |
| 1663 | ResolveCompilingMethodsClass(soa, dex_cache, class_loader, mUnit) : nullptr); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1664 | bool result = false; |
| 1665 | if (resolved_method != nullptr) { |
| 1666 | *vtable_idx = GetResolvedMethodVTableIndex(resolved_method, orig_invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1667 | |
Nicolas Geoffray | e53798a | 2014-12-01 10:31:54 +0000 | [diff] [blame] | 1668 | if (enable_devirtualization && mUnit->GetVerifiedMethod() != nullptr) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1669 | const MethodReference* devirt_target = mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); |
| 1670 | |
| 1671 | stats_flags = IsFastInvoke( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1672 | soa, dex_cache, class_loader, mUnit, h_referrer_class.Get(), resolved_method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1673 | invoke_type, target_method, devirt_target, direct_code, direct_method); |
| 1674 | result = stats_flags != 0; |
| 1675 | } else { |
| 1676 | // Devirtualization not enabled. Inline IsFastInvoke(), dropping the devirtualization parts. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1677 | if (UNLIKELY(h_referrer_class.Get() == nullptr) || |
| 1678 | UNLIKELY(!h_referrer_class->CanAccessResolvedMethod(resolved_method->GetDeclaringClass(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1679 | resolved_method, dex_cache.Get(), |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1680 | target_method->dex_method_index)) || |
| 1681 | *invoke_type == kSuper) { |
| 1682 | // Slow path. (Without devirtualization, all super calls go slow path as well.) |
| 1683 | } else { |
| 1684 | // Sharpening failed so generate a regular resolved method dispatch. |
| 1685 | stats_flags = kFlagMethodResolved; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1686 | GetCodeAndMethodForDirectCall( |
| 1687 | invoke_type, *invoke_type, false, h_referrer_class.Get(), resolved_method, &stats_flags, |
| 1688 | target_method, direct_code, direct_method); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1689 | result = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1690 | } |
| 1691 | } |
| 1692 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1693 | if (!result) { |
| 1694 | // Conservative defaults. |
| 1695 | *vtable_idx = -1; |
| 1696 | *direct_code = 0u; |
| 1697 | *direct_method = 0u; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1698 | } |
| 1699 | if (update_stats) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1700 | ProcessedInvoke(orig_invoke_type, stats_flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1701 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1702 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1703 | } |
| 1704 | |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1705 | const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, |
| 1706 | uint32_t method_idx) const { |
| 1707 | MethodReference ref(dex_file, method_idx); |
| 1708 | return verification_results_->GetVerifiedMethod(ref); |
| 1709 | } |
| 1710 | |
| 1711 | bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1712 | if (!compiler_options_->IsVerificationEnabled()) { |
| 1713 | // If we didn't verify, every cast has to be treated as non-safe. |
| 1714 | return false; |
| 1715 | } |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1716 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
| 1717 | bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1718 | if (result) { |
| 1719 | stats_->SafeCast(); |
| 1720 | } else { |
| 1721 | stats_->NotASafeCast(); |
| 1722 | } |
| 1723 | return result; |
| 1724 | } |
| 1725 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1726 | class CompilationVisitor { |
| 1727 | public: |
| 1728 | virtual ~CompilationVisitor() {} |
| 1729 | virtual void Visit(size_t index) = 0; |
| 1730 | }; |
| 1731 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1732 | class ParallelCompilationManager { |
| 1733 | public: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1734 | ParallelCompilationManager(ClassLinker* class_linker, |
| 1735 | jobject class_loader, |
| 1736 | CompilerDriver* compiler, |
| 1737 | const DexFile* dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1738 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1739 | ThreadPool* thread_pool) |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1740 | : index_(0), |
| 1741 | class_linker_(class_linker), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1742 | class_loader_(class_loader), |
| 1743 | compiler_(compiler), |
| 1744 | dex_file_(dex_file), |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1745 | dex_files_(dex_files), |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1746 | thread_pool_(thread_pool) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1747 | |
| 1748 | ClassLinker* GetClassLinker() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1749 | CHECK(class_linker_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1750 | return class_linker_; |
| 1751 | } |
| 1752 | |
| 1753 | jobject GetClassLoader() const { |
| 1754 | return class_loader_; |
| 1755 | } |
| 1756 | |
| 1757 | CompilerDriver* GetCompiler() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1758 | CHECK(compiler_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1759 | return compiler_; |
| 1760 | } |
| 1761 | |
| 1762 | const DexFile* GetDexFile() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1763 | CHECK(dex_file_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1764 | return dex_file_; |
| 1765 | } |
| 1766 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1767 | const std::vector<const DexFile*>& GetDexFiles() const { |
| 1768 | return dex_files_; |
| 1769 | } |
| 1770 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1771 | void ForAll(size_t begin, size_t end, CompilationVisitor* visitor, size_t work_units) |
| 1772 | REQUIRES(!*Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1773 | Thread* self = Thread::Current(); |
| 1774 | self->AssertNoPendingException(); |
| 1775 | CHECK_GT(work_units, 0U); |
| 1776 | |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1777 | index_.StoreRelaxed(begin); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1778 | for (size_t i = 0; i < work_units; ++i) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1779 | thread_pool_->AddTask(self, new ForAllClosure(this, end, visitor)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1780 | } |
| 1781 | thread_pool_->StartWorkers(self); |
| 1782 | |
| 1783 | // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker |
| 1784 | // thread destructor's called below perform join). |
| 1785 | CHECK_NE(self->GetState(), kRunnable); |
| 1786 | |
| 1787 | // Wait for all the worker threads to finish. |
| 1788 | thread_pool_->Wait(self, true, false); |
| 1789 | } |
| 1790 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1791 | size_t NextIndex() { |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1792 | return index_.FetchAndAddSequentiallyConsistent(1); |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1793 | } |
| 1794 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1795 | private: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1796 | class ForAllClosure : public Task { |
| 1797 | public: |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1798 | ForAllClosure(ParallelCompilationManager* manager, size_t end, CompilationVisitor* visitor) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1799 | : manager_(manager), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1800 | end_(end), |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1801 | visitor_(visitor) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1802 | |
| 1803 | virtual void Run(Thread* self) { |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1804 | while (true) { |
| 1805 | const size_t index = manager_->NextIndex(); |
| 1806 | if (UNLIKELY(index >= end_)) { |
| 1807 | break; |
| 1808 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1809 | visitor_->Visit(index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1810 | self->AssertNoPendingException(); |
| 1811 | } |
| 1812 | } |
| 1813 | |
| 1814 | virtual void Finalize() { |
| 1815 | delete this; |
| 1816 | } |
Brian Carlstrom | 0cd7ec2 | 2013-07-17 23:40:20 -0700 | [diff] [blame] | 1817 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1818 | private: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1819 | ParallelCompilationManager* const manager_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1820 | const size_t end_; |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1821 | CompilationVisitor* const visitor_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1822 | }; |
| 1823 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1824 | AtomicInteger index_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1825 | ClassLinker* const class_linker_; |
| 1826 | const jobject class_loader_; |
| 1827 | CompilerDriver* const compiler_; |
| 1828 | const DexFile* const dex_file_; |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1829 | const std::vector<const DexFile*>& dex_files_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1830 | ThreadPool* const thread_pool_; |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1831 | |
| 1832 | DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1833 | }; |
| 1834 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1835 | // A fast version of SkipClass above if the class pointer is available |
| 1836 | // that avoids the expensive FindInClassPath search. |
| 1837 | 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] | 1838 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1839 | DCHECK(klass != nullptr); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1840 | const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); |
| 1841 | if (&dex_file != &original_dex_file) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1842 | if (class_loader == nullptr) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1843 | LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " |
| 1844 | << dex_file.GetLocation() << " previously found in " |
| 1845 | << original_dex_file.GetLocation(); |
| 1846 | } |
| 1847 | return true; |
| 1848 | } |
| 1849 | return false; |
| 1850 | } |
| 1851 | |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1852 | static void CheckAndClearResolveException(Thread* self) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1853 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1854 | CHECK(self->IsExceptionPending()); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1855 | mirror::Throwable* exception = self->GetException(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1856 | std::string temp; |
| 1857 | const char* descriptor = exception->GetClass()->GetDescriptor(&temp); |
| 1858 | const char* expected_exceptions[] = { |
| 1859 | "Ljava/lang/IllegalAccessError;", |
| 1860 | "Ljava/lang/IncompatibleClassChangeError;", |
| 1861 | "Ljava/lang/InstantiationError;", |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1862 | "Ljava/lang/LinkageError;", |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1863 | "Ljava/lang/NoClassDefFoundError;", |
| 1864 | "Ljava/lang/NoSuchFieldError;", |
| 1865 | "Ljava/lang/NoSuchMethodError;" |
| 1866 | }; |
| 1867 | bool found = false; |
| 1868 | for (size_t i = 0; (found == false) && (i < arraysize(expected_exceptions)); ++i) { |
| 1869 | if (strcmp(descriptor, expected_exceptions[i]) == 0) { |
| 1870 | found = true; |
| 1871 | } |
| 1872 | } |
| 1873 | if (!found) { |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1874 | LOG(FATAL) << "Unexpected exception " << exception->Dump(); |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1875 | } |
| 1876 | self->ClearException(); |
| 1877 | } |
| 1878 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1879 | class ResolveClassFieldsAndMethodsVisitor : public CompilationVisitor { |
| 1880 | public: |
| 1881 | explicit ResolveClassFieldsAndMethodsVisitor(const ParallelCompilationManager* manager) |
| 1882 | : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1883 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1884 | void Visit(size_t class_def_index) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1885 | ATRACE_CALL(); |
| 1886 | Thread* const self = Thread::Current(); |
| 1887 | jobject jclass_loader = manager_->GetClassLoader(); |
| 1888 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 1889 | ClassLinker* class_linker = manager_->GetClassLinker(); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1890 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1891 | // If an instance field is final then we need to have a barrier on the return, static final |
| 1892 | // fields are assigned within the lock held for class initialization. Conservatively assume |
| 1893 | // constructor barriers are always required. |
| 1894 | bool requires_constructor_barrier = true; |
| 1895 | |
| 1896 | // Method and Field are the worst. We can't resolve without either |
| 1897 | // context from the code use (to disambiguate virtual vs direct |
| 1898 | // method and instance vs static field) or from class |
| 1899 | // definitions. While the compiler will resolve what it can as it |
| 1900 | // needs it, here we try to resolve fields and methods used in class |
| 1901 | // definitions, since many of them many never be referenced by |
| 1902 | // generated code. |
| 1903 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 1904 | ScopedObjectAccess soa(self); |
| 1905 | StackHandleScope<2> hs(soa.Self()); |
| 1906 | Handle<mirror::ClassLoader> class_loader( |
| 1907 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 1908 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache(dex_file))); |
| 1909 | // Resolve the class. |
| 1910 | mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, |
| 1911 | class_loader); |
| 1912 | bool resolve_fields_and_methods; |
| 1913 | if (klass == nullptr) { |
| 1914 | // Class couldn't be resolved, for example, super-class is in a different dex file. Don't |
| 1915 | // attempt to resolve methods and fields when there is no declaring class. |
| 1916 | CheckAndClearResolveException(soa.Self()); |
| 1917 | resolve_fields_and_methods = false; |
| 1918 | } else { |
| 1919 | // We successfully resolved a class, should we skip it? |
| 1920 | if (SkipClass(jclass_loader, dex_file, klass)) { |
| 1921 | return; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1922 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1923 | // We want to resolve the methods and fields eagerly. |
| 1924 | resolve_fields_and_methods = true; |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1925 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1926 | // Note the class_data pointer advances through the headers, |
| 1927 | // static fields, instance fields, direct methods, and virtual |
| 1928 | // methods. |
| 1929 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 1930 | if (class_data == nullptr) { |
| 1931 | // Empty class such as a marker interface. |
| 1932 | requires_constructor_barrier = false; |
| 1933 | } else { |
| 1934 | ClassDataItemIterator it(dex_file, class_data); |
| 1935 | while (it.HasNextStaticField()) { |
| 1936 | if (resolve_fields_and_methods) { |
| 1937 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1938 | dex_cache, class_loader, true); |
| 1939 | if (field == nullptr) { |
| 1940 | CheckAndClearResolveException(soa.Self()); |
| 1941 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1942 | } |
| 1943 | it.Next(); |
| 1944 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1945 | // We require a constructor barrier if there are final instance fields. |
| 1946 | requires_constructor_barrier = false; |
| 1947 | while (it.HasNextInstanceField()) { |
| 1948 | if (it.MemberIsFinal()) { |
| 1949 | requires_constructor_barrier = true; |
| 1950 | } |
| 1951 | if (resolve_fields_and_methods) { |
| 1952 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1953 | dex_cache, class_loader, false); |
| 1954 | if (field == nullptr) { |
| 1955 | CheckAndClearResolveException(soa.Self()); |
| 1956 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1957 | } |
| 1958 | it.Next(); |
| 1959 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1960 | if (resolve_fields_and_methods) { |
| 1961 | while (it.HasNextDirectMethod()) { |
| 1962 | ArtMethod* method = class_linker->ResolveMethod( |
| 1963 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 1964 | it.GetMethodInvokeType(class_def)); |
| 1965 | if (method == nullptr) { |
| 1966 | CheckAndClearResolveException(soa.Self()); |
| 1967 | } |
| 1968 | it.Next(); |
| 1969 | } |
| 1970 | while (it.HasNextVirtualMethod()) { |
| 1971 | ArtMethod* method = class_linker->ResolveMethod( |
| 1972 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 1973 | it.GetMethodInvokeType(class_def)); |
| 1974 | if (method == nullptr) { |
| 1975 | CheckAndClearResolveException(soa.Self()); |
| 1976 | } |
| 1977 | it.Next(); |
| 1978 | } |
| 1979 | DCHECK(!it.HasNext()); |
| 1980 | } |
| 1981 | } |
| 1982 | if (requires_constructor_barrier) { |
| 1983 | manager_->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1984 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1985 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1986 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1987 | private: |
| 1988 | const ParallelCompilationManager* const manager_; |
| 1989 | }; |
| 1990 | |
| 1991 | class ResolveTypeVisitor : public CompilationVisitor { |
| 1992 | public: |
| 1993 | explicit ResolveTypeVisitor(const ParallelCompilationManager* manager) : manager_(manager) { |
| 1994 | } |
| 1995 | virtual void Visit(size_t type_idx) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1996 | // Class derived values are more complicated, they require the linker and loader. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1997 | ScopedObjectAccess soa(Thread::Current()); |
| 1998 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 1999 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2000 | StackHandleScope<2> hs(soa.Self()); |
| 2001 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache(dex_file))); |
| 2002 | Handle<mirror::ClassLoader> class_loader( |
| 2003 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(manager_->GetClassLoader()))); |
| 2004 | 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] | 2005 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2006 | if (klass == nullptr) { |
| 2007 | soa.Self()->AssertPendingException(); |
| 2008 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2009 | VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); |
| 2010 | if (exception->GetClass()->DescriptorEquals("Ljava/lang/OutOfMemoryError;")) { |
| 2011 | // There's little point continuing compilation if the heap is exhausted. |
| 2012 | LOG(FATAL) << "Out of memory during type resolution for compilation"; |
| 2013 | } |
| 2014 | soa.Self()->ClearException(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2015 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2016 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2017 | |
| 2018 | private: |
| 2019 | const ParallelCompilationManager* const manager_; |
| 2020 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2021 | |
| 2022 | void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2023 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2024 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2025 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2026 | |
| 2027 | // TODO: we could resolve strings here, although the string table is largely filled with class |
| 2028 | // and method names. |
| 2029 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2030 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2031 | thread_pool); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2032 | if (IsImage()) { |
| 2033 | // For images we resolve all types, such as array, whereas for applications just those with |
| 2034 | // classdefs are resolved by ResolveClassFieldsAndMethods. |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2035 | TimingLogger::ScopedTiming t("Resolve Types", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2036 | ResolveTypeVisitor visitor(&context); |
| 2037 | context.ForAll(0, dex_file.NumTypeIds(), &visitor, thread_count_); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2038 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2039 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2040 | TimingLogger::ScopedTiming t("Resolve MethodsAndFields", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2041 | ResolveClassFieldsAndMethodsVisitor visitor(&context); |
| 2042 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2043 | } |
| 2044 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2045 | void CompilerDriver::SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
| 2046 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2047 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2048 | CHECK(dex_file != nullptr); |
| 2049 | SetVerifiedDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
| 2050 | } |
| 2051 | } |
| 2052 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2053 | void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2054 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2055 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2056 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2057 | VerifyDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2058 | } |
| 2059 | } |
| 2060 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2061 | class VerifyClassVisitor : public CompilationVisitor { |
| 2062 | public: |
| 2063 | explicit VerifyClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2064 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2065 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2066 | ATRACE_CALL(); |
| 2067 | ScopedObjectAccess soa(Thread::Current()); |
| 2068 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2069 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2070 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2071 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2072 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2073 | StackHandleScope<3> hs(soa.Self()); |
| 2074 | Handle<mirror::ClassLoader> class_loader( |
| 2075 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2076 | Handle<mirror::Class> klass( |
| 2077 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2078 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2079 | CHECK(soa.Self()->IsExceptionPending()); |
| 2080 | soa.Self()->ClearException(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2081 | |
| 2082 | /* |
| 2083 | * At compile time, we can still structurally verify the class even if FindClass fails. |
| 2084 | * This is to ensure the class is structurally sound for compilation. An unsound class |
| 2085 | * will be rejected by the verifier and later skipped during compilation in the compiler. |
| 2086 | */ |
| 2087 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache(dex_file))); |
| 2088 | std::string error_msg; |
| 2089 | if (verifier::MethodVerifier::VerifyClass(soa.Self(), &dex_file, dex_cache, class_loader, |
| 2090 | &class_def, true, &error_msg) == |
| 2091 | verifier::MethodVerifier::kHardFailure) { |
| 2092 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) |
| 2093 | << " because: " << error_msg; |
| 2094 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2095 | } |
| 2096 | } else if (!SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2097 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()); |
| 2098 | class_linker->VerifyClass(soa.Self(), klass); |
| 2099 | |
| 2100 | if (klass->IsErroneous()) { |
| 2101 | // ClassLinker::VerifyClass throws, which isn't useful in the compiler. |
| 2102 | CHECK(soa.Self()->IsExceptionPending()); |
| 2103 | soa.Self()->ClearException(); |
| 2104 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2105 | } |
| 2106 | |
| 2107 | CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) |
| 2108 | << PrettyDescriptor(klass.Get()) << ": state=" << klass->GetStatus(); |
| 2109 | |
| 2110 | // It is *very* problematic if there are verification errors in the boot classpath. For example, |
| 2111 | // we rely on things working OK without verification when the decryption dialog is brought up. |
| 2112 | // So abort in a debug build if we find this violated. |
| 2113 | DCHECK(!manager_->GetCompiler()->IsImage() || klass->IsVerified()) << "Boot classpath class " |
| 2114 | << PrettyClass(klass.Get()) << " failed to fully verify."; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2115 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2116 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2117 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2118 | |
| 2119 | private: |
| 2120 | const ParallelCompilationManager* const manager_; |
| 2121 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2122 | |
| 2123 | void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2124 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2125 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2126 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2127 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2128 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2129 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2130 | VerifyClassVisitor visitor(&context); |
| 2131 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2132 | } |
| 2133 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2134 | class SetVerifiedClassVisitor : public CompilationVisitor { |
| 2135 | public: |
| 2136 | explicit SetVerifiedClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2137 | |
| 2138 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2139 | ATRACE_CALL(); |
| 2140 | ScopedObjectAccess soa(Thread::Current()); |
| 2141 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2142 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2143 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2144 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2145 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2146 | StackHandleScope<3> hs(soa.Self()); |
| 2147 | Handle<mirror::ClassLoader> class_loader( |
| 2148 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2149 | Handle<mirror::Class> klass( |
| 2150 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2151 | // Class might have failed resolution. Then don't set it to verified. |
| 2152 | if (klass.Get() != nullptr) { |
| 2153 | // Only do this if the class is resolved. If even resolution fails, quickening will go very, |
| 2154 | // very wrong. |
| 2155 | if (klass->IsResolved()) { |
| 2156 | if (klass->GetStatus() < mirror::Class::kStatusVerified) { |
| 2157 | ObjectLock<mirror::Class> lock(soa.Self(), klass); |
| 2158 | // Set class status to verified. |
| 2159 | mirror::Class::SetStatus(klass, mirror::Class::kStatusVerified, soa.Self()); |
| 2160 | // Mark methods as pre-verified. If we don't do this, the interpreter will run with |
| 2161 | // access checks. |
| 2162 | klass->SetPreverifiedFlagOnAllMethods( |
| 2163 | GetInstructionSetPointerSize(manager_->GetCompiler()->GetInstructionSet())); |
| 2164 | klass->SetPreverified(); |
| 2165 | } |
| 2166 | // Record the final class status if necessary. |
| 2167 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2168 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2169 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2170 | } else { |
| 2171 | Thread* self = soa.Self(); |
| 2172 | DCHECK(self->IsExceptionPending()); |
| 2173 | self->ClearException(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2174 | } |
| 2175 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2176 | |
| 2177 | private: |
| 2178 | const ParallelCompilationManager* const manager_; |
| 2179 | }; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2180 | |
| 2181 | void CompilerDriver::SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, |
| 2182 | const std::vector<const DexFile*>& dex_files, |
| 2183 | ThreadPool* thread_pool, TimingLogger* timings) { |
| 2184 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
| 2185 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2186 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2187 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2188 | SetVerifiedClassVisitor visitor(&context); |
| 2189 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2190 | } |
| 2191 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2192 | class InitializeClassVisitor : public CompilationVisitor { |
| 2193 | public: |
| 2194 | explicit InitializeClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2195 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2196 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2197 | ATRACE_CALL(); |
| 2198 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2199 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2200 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2201 | const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); |
| 2202 | const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 2203 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2204 | ScopedObjectAccess soa(Thread::Current()); |
| 2205 | StackHandleScope<3> hs(soa.Self()); |
| 2206 | Handle<mirror::ClassLoader> class_loader( |
| 2207 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2208 | Handle<mirror::Class> klass( |
| 2209 | hs.NewHandle(manager_->GetClassLinker()->FindClass(soa.Self(), descriptor, class_loader))); |
| 2210 | |
| 2211 | if (klass.Get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2212 | // Only try to initialize classes that were successfully verified. |
| 2213 | if (klass->IsVerified()) { |
| 2214 | // Attempt to initialize the class but bail if we either need to initialize the super-class |
| 2215 | // or static fields. |
| 2216 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, false); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2217 | if (!klass->IsInitialized()) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2218 | // We don't want non-trivial class initialization occurring on multiple threads due to |
| 2219 | // deadlock problems. For example, a parent class is initialized (holding its lock) that |
| 2220 | // refers to a sub-class in its static/class initializer causing it to try to acquire the |
| 2221 | // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) |
| 2222 | // after first initializing its parents, whose locks are acquired. This leads to a |
| 2223 | // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. |
| 2224 | // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather |
| 2225 | // than use a special Object for the purpose we use the Class of java.lang.Class. |
| 2226 | Handle<mirror::Class> h_klass(hs.NewHandle(klass->GetClass())); |
| 2227 | ObjectLock<mirror::Class> lock(soa.Self(), h_klass); |
| 2228 | // Attempt to initialize allowing initialization of parent classes but still not static |
| 2229 | // fields. |
| 2230 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, true); |
| 2231 | if (!klass->IsInitialized()) { |
| 2232 | // We need to initialize static fields, we only do this for image classes that aren't |
| 2233 | // marked with the $NoPreloadHolder (which implies this should not be initialized early). |
| 2234 | bool can_init_static_fields = manager_->GetCompiler()->IsImage() && |
| 2235 | manager_->GetCompiler()->IsImageClass(descriptor) && |
| 2236 | !StringPiece(descriptor).ends_with("$NoPreloadHolder;"); |
| 2237 | if (can_init_static_fields) { |
| 2238 | VLOG(compiler) << "Initializing: " << descriptor; |
| 2239 | // TODO multithreading support. We should ensure the current compilation thread has |
| 2240 | // exclusive access to the runtime and the transaction. To achieve this, we could use |
| 2241 | // a ReaderWriterMutex but we're holding the mutator lock so we fail mutex sanity |
| 2242 | // checks in Thread::AssertThreadSuspensionIsAllowable. |
| 2243 | Runtime* const runtime = Runtime::Current(); |
| 2244 | Transaction transaction; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2245 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2246 | // Run the class initializer in transaction mode. |
| 2247 | runtime->EnterTransactionMode(&transaction); |
| 2248 | const mirror::Class::Status old_status = klass->GetStatus(); |
| 2249 | bool success = manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, true, |
| 2250 | true); |
| 2251 | // TODO we detach transaction from runtime to indicate we quit the transactional |
| 2252 | // mode which prevents the GC from visiting objects modified during the transaction. |
| 2253 | // 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] | 2254 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2255 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Transaction end"); |
| 2256 | runtime->ExitTransactionMode(); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2257 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2258 | if (!success) { |
| 2259 | CHECK(soa.Self()->IsExceptionPending()); |
| 2260 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2261 | VLOG(compiler) << "Initialization of " << descriptor << " aborted because of " |
| 2262 | << exception->Dump(); |
| 2263 | std::ostream* file_log = manager_->GetCompiler()-> |
| 2264 | GetCompilerOptions().GetInitFailureOutput(); |
| 2265 | if (file_log != nullptr) { |
| 2266 | *file_log << descriptor << "\n"; |
| 2267 | *file_log << exception->Dump() << "\n"; |
| 2268 | } |
| 2269 | soa.Self()->ClearException(); |
| 2270 | transaction.Rollback(); |
| 2271 | CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored"; |
Andreas Gampe | dbfe254 | 2014-11-25 22:21:42 -0800 | [diff] [blame] | 2272 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2273 | } |
| 2274 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2275 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2276 | } |
| 2277 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2278 | // Record the final class status if necessary. |
| 2279 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2280 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2281 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2282 | // Clear any class not found or verification exceptions. |
| 2283 | soa.Self()->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2284 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2285 | |
| 2286 | private: |
| 2287 | const ParallelCompilationManager* const manager_; |
| 2288 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2289 | |
| 2290 | void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2291 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2292 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2293 | TimingLogger::ScopedTiming t("InitializeNoClinit", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2294 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2295 | ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, dex_files, |
| 2296 | thread_pool); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2297 | size_t thread_count; |
| 2298 | if (IsImage()) { |
| 2299 | // TODO: remove this when transactional mode supports multithreading. |
| 2300 | thread_count = 1U; |
| 2301 | } else { |
| 2302 | thread_count = thread_count_; |
| 2303 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2304 | InitializeClassVisitor visitor(&context); |
| 2305 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2306 | } |
| 2307 | |
| 2308 | void CompilerDriver::InitializeClasses(jobject class_loader, |
| 2309 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2310 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2311 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2312 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2313 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2314 | InitializeClasses(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2315 | } |
Mathieu Chartier | 093ef21 | 2014-08-11 13:52:12 -0700 | [diff] [blame] | 2316 | if (IsImage()) { |
| 2317 | // Prune garbage objects created during aborted transactions. |
| 2318 | Runtime::Current()->GetHeap()->CollectGarbage(true); |
| 2319 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2320 | } |
| 2321 | |
| 2322 | void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2323 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2324 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2325 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2326 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2327 | CompileDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2328 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2329 | VLOG(compiler) << "Compile: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2330 | } |
| 2331 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2332 | class CompileClassVisitor : public CompilationVisitor { |
| 2333 | public: |
| 2334 | explicit CompileClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2335 | |
| 2336 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2337 | ATRACE_CALL(); |
| 2338 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2339 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2340 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2341 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2342 | Thread* self = Thread::Current(); |
| 2343 | { |
| 2344 | // Use a scoped object access to perform to the quick SkipClass check. |
| 2345 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2346 | ScopedObjectAccess soa(self); |
| 2347 | StackHandleScope<3> hs(soa.Self()); |
| 2348 | Handle<mirror::ClassLoader> class_loader( |
| 2349 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2350 | Handle<mirror::Class> klass( |
| 2351 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2352 | if (klass.Get() == nullptr) { |
| 2353 | CHECK(soa.Self()->IsExceptionPending()); |
| 2354 | soa.Self()->ClearException(); |
| 2355 | } else if (SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2356 | return; |
| 2357 | } |
| 2358 | } |
| 2359 | ClassReference ref(&dex_file, class_def_index); |
| 2360 | // Skip compiling classes with generic verifier failures since they will still fail at runtime |
| 2361 | if (manager_->GetCompiler()->verification_results_->IsClassRejected(ref)) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2362 | return; |
| 2363 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2364 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 2365 | if (class_data == nullptr) { |
| 2366 | // empty class, probably a marker interface |
| 2367 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2368 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2369 | |
| 2370 | CompilerDriver* const driver = manager_->GetCompiler(); |
| 2371 | |
| 2372 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2373 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 2374 | GetDexToDexCompilationLevel(self, *driver, jclass_loader, dex_file, class_def); |
| 2375 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2376 | ClassDataItemIterator it(dex_file, class_data); |
| 2377 | // Skip fields |
| 2378 | while (it.HasNextStaticField()) { |
| 2379 | it.Next(); |
| 2380 | } |
| 2381 | while (it.HasNextInstanceField()) { |
| 2382 | it.Next(); |
| 2383 | } |
| 2384 | |
| 2385 | bool compilation_enabled = driver->IsClassToCompile( |
| 2386 | dex_file.StringByTypeIdx(class_def.class_idx_)); |
| 2387 | |
| 2388 | // Compile direct methods |
| 2389 | int64_t previous_direct_method_idx = -1; |
| 2390 | while (it.HasNextDirectMethod()) { |
| 2391 | uint32_t method_idx = it.GetMemberIndex(); |
| 2392 | if (method_idx == previous_direct_method_idx) { |
| 2393 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2394 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2395 | it.Next(); |
| 2396 | continue; |
| 2397 | } |
| 2398 | previous_direct_method_idx = method_idx; |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2399 | CompileMethod(self, driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
| 2400 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2401 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
| 2402 | compilation_enabled); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2403 | it.Next(); |
| 2404 | } |
| 2405 | // Compile virtual methods |
| 2406 | int64_t previous_virtual_method_idx = -1; |
| 2407 | while (it.HasNextVirtualMethod()) { |
| 2408 | uint32_t method_idx = it.GetMemberIndex(); |
| 2409 | if (method_idx == previous_virtual_method_idx) { |
| 2410 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2411 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2412 | it.Next(); |
| 2413 | continue; |
| 2414 | } |
| 2415 | previous_virtual_method_idx = method_idx; |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2416 | CompileMethod(self, driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
| 2417 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2418 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
| 2419 | compilation_enabled); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2420 | it.Next(); |
| 2421 | } |
| 2422 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2423 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2424 | |
| 2425 | private: |
| 2426 | const ParallelCompilationManager* const manager_; |
| 2427 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2428 | |
| 2429 | void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2430 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2431 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2432 | TimingLogger::ScopedTiming t("Compile Dex File", timings); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2433 | ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2434 | &dex_file, dex_files, thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2435 | CompileClassVisitor visitor(&context); |
| 2436 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2437 | } |
| 2438 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2439 | void CompilerDriver::AddCompiledMethod(const MethodReference& method_ref, |
| 2440 | CompiledMethod* const compiled_method, |
| 2441 | size_t non_relative_linker_patch_count) { |
| 2442 | DCHECK(GetCompiledMethod(method_ref) == nullptr) |
| 2443 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
| 2444 | { |
| 2445 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2446 | compiled_methods_.Put(method_ref, compiled_method); |
| 2447 | non_relative_linker_patch_count_ += non_relative_linker_patch_count; |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2448 | } |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2449 | DCHECK(GetCompiledMethod(method_ref) != nullptr) |
| 2450 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2451 | } |
| 2452 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2453 | void CompilerDriver::RemoveCompiledMethod(const MethodReference& method_ref) { |
| 2454 | CompiledMethod* compiled_method = nullptr; |
| 2455 | { |
| 2456 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2457 | auto it = compiled_methods_.find(method_ref); |
| 2458 | if (it != compiled_methods_.end()) { |
| 2459 | compiled_method = it->second; |
| 2460 | compiled_methods_.erase(it); |
| 2461 | } |
| 2462 | } |
| 2463 | if (compiled_method != nullptr) { |
| 2464 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, compiled_method); |
| 2465 | } |
| 2466 | } |
| 2467 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2468 | CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { |
| 2469 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2470 | ClassTable::const_iterator it = compiled_classes_.find(ref); |
| 2471 | if (it == compiled_classes_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2472 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2473 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2474 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2475 | return it->second; |
| 2476 | } |
| 2477 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2478 | void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { |
| 2479 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2480 | auto it = compiled_classes_.find(ref); |
| 2481 | if (it == compiled_classes_.end() || it->second->GetStatus() != status) { |
| 2482 | // An entry doesn't exist or the status is lower than the new status. |
| 2483 | if (it != compiled_classes_.end()) { |
| 2484 | CHECK_GT(status, it->second->GetStatus()); |
| 2485 | delete it->second; |
| 2486 | } |
| 2487 | switch (status) { |
| 2488 | case mirror::Class::kStatusNotReady: |
| 2489 | case mirror::Class::kStatusError: |
| 2490 | case mirror::Class::kStatusRetryVerificationAtRuntime: |
| 2491 | case mirror::Class::kStatusVerified: |
| 2492 | case mirror::Class::kStatusInitialized: |
| 2493 | break; // Expected states. |
| 2494 | default: |
| 2495 | LOG(FATAL) << "Unexpected class status for class " |
| 2496 | << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) |
| 2497 | << " of " << status; |
| 2498 | } |
| 2499 | CompiledClass* compiled_class = new CompiledClass(status); |
| 2500 | compiled_classes_.Overwrite(ref, compiled_class); |
| 2501 | } |
| 2502 | } |
| 2503 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2504 | CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { |
| 2505 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2506 | MethodTable::const_iterator it = compiled_methods_.find(ref); |
| 2507 | if (it == compiled_methods_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2508 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2509 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2510 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2511 | return it->second; |
| 2512 | } |
| 2513 | |
Calin Juravle | f1c6d9e | 2015-04-13 18:42:21 +0100 | [diff] [blame] | 2514 | bool CompilerDriver::IsMethodVerifiedWithoutFailures(uint32_t method_idx, |
| 2515 | uint16_t class_def_idx, |
| 2516 | const DexFile& dex_file) const { |
| 2517 | const VerifiedMethod* verified_method = GetVerifiedMethod(&dex_file, method_idx); |
| 2518 | if (verified_method != nullptr) { |
| 2519 | return !verified_method->HasVerificationFailures(); |
| 2520 | } |
| 2521 | |
| 2522 | // If we can't find verification metadata, check if this is a system class (we trust that system |
| 2523 | // classes have their methods verified). If it's not, be conservative and assume the method |
| 2524 | // has not been verified successfully. |
| 2525 | |
| 2526 | // TODO: When compiling the boot image it should be safe to assume that everything is verified, |
| 2527 | // even if methods are not found in the verification cache. |
| 2528 | const char* descriptor = dex_file.GetClassDescriptor(dex_file.GetClassDef(class_def_idx)); |
| 2529 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2530 | Thread* self = Thread::Current(); |
| 2531 | ScopedObjectAccess soa(self); |
| 2532 | bool is_system_class = class_linker->FindSystemClass(self, descriptor) != nullptr; |
| 2533 | if (!is_system_class) { |
| 2534 | self->ClearException(); |
| 2535 | } |
| 2536 | return is_system_class; |
| 2537 | } |
| 2538 | |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2539 | size_t CompilerDriver::GetNonRelativeLinkerPatchCount() const { |
| 2540 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2541 | return non_relative_linker_patch_count_; |
| 2542 | } |
| 2543 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2544 | void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2545 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2546 | WriterMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2547 | freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); |
| 2548 | } |
| 2549 | |
| 2550 | bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Calin Juravle | 27df758 | 2015-04-17 19:12:31 +0100 | [diff] [blame] | 2551 | uint16_t class_def_index) const { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2552 | ReaderMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2553 | return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; |
| 2554 | } |
| 2555 | |
| 2556 | bool CompilerDriver::WriteElf(const std::string& android_root, |
| 2557 | bool is_host, |
| 2558 | const std::vector<const art::DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2559 | OatWriter* oat_writer, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2560 | art::File* file) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2561 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | 3773cd0 | 2015-04-10 09:28:22 -0700 | [diff] [blame] | 2562 | if (kProduce64BitELFFiles && Is64BitInstructionSet(GetInstructionSet())) { |
| 2563 | return art::ElfWriterQuick64::Create(file, oat_writer, dex_files, android_root, is_host, *this); |
| 2564 | } else { |
| 2565 | return art::ElfWriterQuick32::Create(file, oat_writer, dex_files, android_root, is_host, *this); |
| 2566 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2567 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2568 | |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2569 | bool CompilerDriver::SkipCompilation(const std::string& method_name) { |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 2570 | if (!profile_present_) { |
Dave Allison | 644789f | 2014-04-10 13:06:10 -0700 | [diff] [blame] | 2571 | return false; |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2572 | } |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 2573 | // First find the method in the profile file. |
| 2574 | ProfileFile::ProfileData data; |
| 2575 | if (!profile_file_.GetProfileData(&data, method_name)) { |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2576 | // Not in profile, no information can be determined. |
Calin Juravle | 08f7a2d | 2014-06-23 15:22:29 +0100 | [diff] [blame] | 2577 | if (kIsDebugBuild) { |
| 2578 | VLOG(compiler) << "not compiling " << method_name << " because it's not in the profile"; |
| 2579 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2580 | return true; |
| 2581 | } |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 2582 | |
| 2583 | // Methods that comprise top_k_threshold % of the total samples will be compiled. |
Calin Juravle | f6a4cee | 2014-04-02 17:03:08 +0100 | [diff] [blame] | 2584 | // Compare against the start of the topK percentage bucket just in case the threshold |
Calin Juravle | 04ff226 | 2014-04-02 19:08:47 +0100 | [diff] [blame] | 2585 | // falls inside a bucket. |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 2586 | bool compile = data.GetTopKUsedPercentage() - data.GetUsedPercent() |
| 2587 | <= compiler_options_->GetTopKProfileThreshold(); |
Calin Juravle | 08f7a2d | 2014-06-23 15:22:29 +0100 | [diff] [blame] | 2588 | if (kIsDebugBuild) { |
| 2589 | if (compile) { |
| 2590 | LOG(INFO) << "compiling method " << method_name << " because its usage is part of top " |
| 2591 | << data.GetTopKUsedPercentage() << "% with a percent of " << data.GetUsedPercent() << "%" |
| 2592 | << " (topKThreshold=" << compiler_options_->GetTopKProfileThreshold() << ")"; |
| 2593 | } else { |
| 2594 | VLOG(compiler) << "not compiling method " << method_name |
| 2595 | << " because it's not part of leading " << compiler_options_->GetTopKProfileThreshold() |
| 2596 | << "% samples)"; |
| 2597 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2598 | } |
| 2599 | return !compile; |
| 2600 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2601 | |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2602 | std::string CompilerDriver::GetMemoryUsageString(bool extended) const { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2603 | std::ostringstream oss; |
Mathieu Chartier | 9b34b24 | 2015-03-09 11:30:17 -0700 | [diff] [blame] | 2604 | Runtime* const runtime = Runtime::Current(); |
| 2605 | const ArenaPool* arena_pool = runtime->GetArenaPool(); |
| 2606 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2607 | oss << "arena alloc=" << PrettySize(arena_pool->GetBytesAllocated()); |
| 2608 | oss << " java alloc=" << PrettySize(heap->GetBytesAllocated()); |
Elliott Hughes | 7bf5a26 | 2015-04-02 20:55:07 -0700 | [diff] [blame] | 2609 | #if defined(__BIONIC__) || defined(__GLIBC__) |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2610 | struct mallinfo info = mallinfo(); |
| 2611 | const size_t allocated_space = static_cast<size_t>(info.uordblks); |
| 2612 | const size_t free_space = static_cast<size_t>(info.fordblks); |
| 2613 | oss << " native alloc=" << PrettySize(allocated_space) << " free=" |
| 2614 | << PrettySize(free_space); |
| 2615 | #endif |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 2616 | if (swap_space_.get() != nullptr) { |
| 2617 | oss << " swap=" << PrettySize(swap_space_->GetSize()); |
| 2618 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2619 | if (extended) { |
| 2620 | oss << "\nCode dedupe: " << dedupe_code_.DumpStats(); |
| 2621 | oss << "\nMapping table dedupe: " << dedupe_mapping_table_.DumpStats(); |
| 2622 | oss << "\nVmap table dedupe: " << dedupe_vmap_table_.DumpStats(); |
| 2623 | oss << "\nGC map dedupe: " << dedupe_gc_map_.DumpStats(); |
| 2624 | oss << "\nCFI info dedupe: " << dedupe_cfi_info_.DumpStats(); |
| 2625 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2626 | return oss.str(); |
| 2627 | } |
| 2628 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 2629 | bool CompilerDriver::IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file) { |
| 2630 | const char* type = dex_file->GetTypeDescriptor(dex_file->GetTypeId(type_index)); |
| 2631 | return strcmp(type, "Ljava/lang/String;") == 0; |
| 2632 | } |
| 2633 | |
| 2634 | bool CompilerDriver::IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset) { |
| 2635 | DexFileMethodInliner* inliner = GetMethodInlinerMap()->GetMethodInliner(dex_file); |
| 2636 | size_t pointer_size = InstructionSetPointerSize(GetInstructionSet()); |
| 2637 | *offset = inliner->GetOffsetForStringInit(method_index, pointer_size); |
| 2638 | return inliner->IsStringInitMethodIndex(method_index); |
| 2639 | } |
| 2640 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2641 | } // namespace art |