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, |
Calin Juravle | 87000a9 | 2015-08-24 15:34:44 +0100 | [diff] [blame] | 348 | const std::string& dump_cfg_file_name, bool dump_cfg_append, |
| 349 | CumulativeLogger* timer, int swap_fd, |
| 350 | const std::string& profile_file) |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 351 | : swap_space_(swap_fd == -1 ? nullptr : new SwapSpace(swap_fd, 10 * MB)), |
| 352 | swap_space_allocator_(new SwapAllocator<void>(swap_space_.get())), |
| 353 | profile_present_(false), compiler_options_(compiler_options), |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 354 | verification_results_(verification_results), |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 355 | method_inliner_map_(method_inliner_map), |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 356 | compiler_(Compiler::Create(this, compiler_kind)), |
Jeff Hao | 48699fb | 2015-04-06 14:21:37 -0700 | [diff] [blame] | 357 | compiler_kind_(compiler_kind), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 358 | instruction_set_(instruction_set), |
Dave Allison | 7020278 | 2013-10-22 17:52:19 -0700 | [diff] [blame] | 359 | instruction_set_features_(instruction_set_features), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 360 | freezing_constructor_lock_("freezing constructor lock"), |
| 361 | compiled_classes_lock_("compiled classes lock"), |
| 362 | compiled_methods_lock_("compiled method lock"), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 363 | compiled_methods_(MethodTable::key_compare()), |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 364 | non_relative_linker_patch_count_(0u), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 365 | image_(image), |
| 366 | image_classes_(image_classes), |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 367 | classes_to_compile_(compiled_classes), |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 368 | methods_to_compile_(compiled_methods), |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 369 | had_hard_verifier_failure_(false), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 370 | thread_count_(thread_count), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 371 | stats_(new AOTCompilationStats), |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 372 | dedupe_enabled_(true), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 373 | dump_stats_(dump_stats), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 374 | dump_passes_(dump_passes), |
David Brazdil | 866c031 | 2015-01-13 21:21:31 +0000 | [diff] [blame] | 375 | dump_cfg_file_name_(dump_cfg_file_name), |
Calin Juravle | 87000a9 | 2015-08-24 15:34:44 +0100 | [diff] [blame] | 376 | dump_cfg_append_(dump_cfg_append), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 377 | timings_logger_(timer), |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 378 | compiler_context_(nullptr), |
Andreas Gampe | 57b3429 | 2015-01-14 15:45:59 -0800 | [diff] [blame] | 379 | support_boot_image_fixup_(instruction_set != kMips && instruction_set != kMips64), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 380 | dedupe_code_("dedupe code", *swap_space_allocator_), |
| 381 | dedupe_src_mapping_table_("dedupe source mapping table", *swap_space_allocator_), |
| 382 | dedupe_mapping_table_("dedupe mapping table", *swap_space_allocator_), |
| 383 | dedupe_vmap_table_("dedupe vmap table", *swap_space_allocator_), |
| 384 | dedupe_gc_map_("dedupe gc map", *swap_space_allocator_), |
| 385 | dedupe_cfi_info_("dedupe cfi info", *swap_space_allocator_) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 386 | DCHECK(compiler_options_ != nullptr); |
| 387 | DCHECK(verification_results_ != nullptr); |
| 388 | DCHECK(method_inliner_map_ != nullptr); |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 389 | |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 390 | compiler_->Init(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 391 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 392 | CHECK_EQ(image_, image_classes_.get() != nullptr); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 393 | |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 394 | // Read the profile file if one is provided. |
| 395 | if (!profile_file.empty()) { |
| 396 | profile_present_ = profile_file_.LoadFile(profile_file); |
| 397 | if (profile_present_) { |
| 398 | LOG(INFO) << "Using profile data form file " << profile_file; |
| 399 | } else { |
| 400 | LOG(INFO) << "Failed to load profile file " << profile_file; |
| 401 | } |
| 402 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 403 | } |
| 404 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 405 | SwapVector<uint8_t>* CompilerDriver::DeduplicateCode(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 406 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 407 | return dedupe_code_.Add(Thread::Current(), code); |
| 408 | } |
| 409 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 410 | SwapSrcMap* CompilerDriver::DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 411 | DCHECK(dedupe_enabled_); |
Yevgeny Rouban | e3ea838 | 2014-08-08 16:29:38 +0700 | [diff] [blame] | 412 | return dedupe_src_mapping_table_.Add(Thread::Current(), src_map); |
| 413 | } |
| 414 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 415 | SwapVector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 416 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 417 | return dedupe_mapping_table_.Add(Thread::Current(), code); |
| 418 | } |
| 419 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 420 | SwapVector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 421 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 422 | return dedupe_vmap_table_.Add(Thread::Current(), code); |
| 423 | } |
| 424 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 425 | SwapVector<uint8_t>* CompilerDriver::DeduplicateGCMap(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 426 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 427 | return dedupe_gc_map_.Add(Thread::Current(), code); |
| 428 | } |
| 429 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 430 | SwapVector<uint8_t>* CompilerDriver::DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 431 | DCHECK(dedupe_enabled_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 432 | return dedupe_cfi_info_.Add(Thread::Current(), cfi_info); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 433 | } |
| 434 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 435 | CompilerDriver::~CompilerDriver() { |
| 436 | Thread* self = Thread::Current(); |
| 437 | { |
| 438 | MutexLock mu(self, compiled_classes_lock_); |
| 439 | STLDeleteValues(&compiled_classes_); |
| 440 | } |
| 441 | { |
| 442 | MutexLock mu(self, compiled_methods_lock_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 443 | for (auto& pair : compiled_methods_) { |
| 444 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, pair.second); |
| 445 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 446 | } |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 447 | compiler_->UnInit(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 448 | } |
| 449 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 450 | #define CREATE_TRAMPOLINE(type, abi, offset) \ |
Andreas Gampe | af13ad9 | 2014-04-11 12:07:48 -0700 | [diff] [blame] | 451 | if (Is64BitInstructionSet(instruction_set_)) { \ |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 452 | return CreateTrampoline64(instruction_set_, abi, \ |
| 453 | type ## _ENTRYPOINT_OFFSET(8, offset)); \ |
| 454 | } else { \ |
| 455 | return CreateTrampoline32(instruction_set_, abi, \ |
| 456 | type ## _ENTRYPOINT_OFFSET(4, offset)); \ |
| 457 | } |
| 458 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 459 | const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 460 | CREATE_TRAMPOLINE(JNI, kJniAbi, pDlsymLookup) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 461 | } |
| 462 | |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 463 | const std::vector<uint8_t>* CompilerDriver::CreateQuickGenericJniTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 464 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickGenericJniTrampoline) |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 465 | } |
| 466 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 467 | const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 468 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickImtConflictTrampoline) |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 469 | } |
| 470 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 471 | const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 472 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickResolutionTrampoline) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 473 | } |
| 474 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 475 | const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 476 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickToInterpreterBridge) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 477 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 478 | #undef CREATE_TRAMPOLINE |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 479 | |
| 480 | void CompilerDriver::CompileAll(jobject class_loader, |
Brian Carlstrom | 4560248 | 2013-07-21 22:07:55 -0700 | [diff] [blame] | 481 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 482 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 483 | DCHECK(!Runtime::Current()->IsStarted()); |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 484 | std::unique_ptr<ThreadPool> thread_pool( |
| 485 | new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 486 | VLOG(compiler) << "Before precompile " << GetMemoryUsageString(false); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 487 | // Precompile: |
| 488 | // 1) Load image classes |
| 489 | // 2) Resolve all classes |
| 490 | // 3) Attempt to verify all classes |
| 491 | // 4) Attempt to initialize image classes, and trivially initialized classes |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 492 | PreCompile(class_loader, dex_files, thread_pool.get(), timings); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 493 | // Compile: |
| 494 | // 1) Compile all classes and methods enabled for compilation. May fall back to dex-to-dex |
| 495 | // compilation. |
| 496 | if (!GetCompilerOptions().VerifyAtRuntime()) { |
| 497 | Compile(class_loader, dex_files, thread_pool.get(), timings); |
| 498 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 499 | if (dump_stats_) { |
| 500 | stats_->Dump(); |
| 501 | } |
| 502 | } |
| 503 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 504 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 505 | Thread* self, const CompilerDriver& driver, Handle<mirror::ClassLoader> class_loader, |
| 506 | const DexFile& dex_file, const DexFile::ClassDef& class_def) |
| 507 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 508 | auto* const runtime = Runtime::Current(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 509 | if (runtime->UseJit() || driver.GetCompilerOptions().VerifyAtRuntime()) { |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 510 | // 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] | 511 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 512 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 513 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 514 | ClassLinker* class_linker = runtime->GetClassLinker(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 515 | mirror::Class* klass = class_linker->FindClass(self, descriptor, class_loader); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 516 | if (klass == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 517 | CHECK(self->IsExceptionPending()); |
| 518 | self->ClearException(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 519 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 520 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 521 | // DexToDex at the kOptimize level may introduce quickened opcodes, which replace symbolic |
| 522 | // references with actual offsets. We cannot re-verify such instructions. |
| 523 | // |
| 524 | // We store the verification information in the class status in the oat file, which the linker |
| 525 | // can validate (checksums) and use to skip load-time verification. It is thus safe to |
| 526 | // optimize when a class has been fully verified before. |
| 527 | if (klass->IsVerified()) { |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 528 | // 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] | 529 | return optimizer::DexToDexCompilationLevel::kOptimize; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 530 | } else if (klass->IsCompileTimeVerified()) { |
| 531 | // Class verification has soft-failed. Anyway, ensure at least correctness. |
| 532 | DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 533 | return optimizer::DexToDexCompilationLevel::kRequired; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 534 | } else { |
| 535 | // Class verification has failed: do not run DEX-to-DEX compilation. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 536 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 541 | Thread* self, |
| 542 | const CompilerDriver& driver, |
| 543 | jobject jclass_loader, |
| 544 | const DexFile& dex_file, |
| 545 | const DexFile::ClassDef& class_def) { |
| 546 | ScopedObjectAccess soa(self); |
| 547 | StackHandleScope<1> hs(soa.Self()); |
| 548 | Handle<mirror::ClassLoader> class_loader( |
| 549 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 550 | return GetDexToDexCompilationLevel(self, driver, class_loader, dex_file, class_def); |
| 551 | } |
| 552 | |
| 553 | // Does the runtime for the InstructionSet provide an implementation returned by |
| 554 | // GetQuickGenericJniStub allowing down calls that aren't compiled using a JNI compiler? |
| 555 | static bool InstructionSetHasGenericJniStub(InstructionSet isa) { |
| 556 | switch (isa) { |
| 557 | case kArm: |
| 558 | case kArm64: |
| 559 | case kThumb2: |
| 560 | case kMips: |
| 561 | case kMips64: |
| 562 | case kX86: |
| 563 | case kX86_64: return true; |
| 564 | default: return false; |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | static void CompileMethod(Thread* self, |
| 569 | CompilerDriver* driver, |
| 570 | const DexFile::CodeItem* code_item, |
| 571 | uint32_t access_flags, |
| 572 | InvokeType invoke_type, |
| 573 | uint16_t class_def_idx, |
| 574 | uint32_t method_idx, |
| 575 | jobject class_loader, |
| 576 | const DexFile& dex_file, |
| 577 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 578 | bool compilation_enabled, |
| 579 | Handle<mirror::DexCache> dex_cache) |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 580 | REQUIRES(!driver->compiled_methods_lock_) { |
| 581 | DCHECK(driver != nullptr); |
| 582 | CompiledMethod* compiled_method = nullptr; |
| 583 | uint64_t start_ns = kTimeCompileMethod ? NanoTime() : 0; |
| 584 | MethodReference method_ref(&dex_file, method_idx); |
| 585 | |
| 586 | if ((access_flags & kAccNative) != 0) { |
| 587 | // Are we interpreting only and have support for generic JNI down calls? |
| 588 | if (!driver->GetCompilerOptions().IsCompilationEnabled() && |
| 589 | InstructionSetHasGenericJniStub(driver->GetInstructionSet())) { |
| 590 | // Leaving this empty will trigger the generic JNI version |
| 591 | } else { |
| 592 | compiled_method = driver->GetCompiler()->JniCompile(access_flags, method_idx, dex_file); |
| 593 | CHECK(compiled_method != nullptr); |
| 594 | } |
| 595 | } else if ((access_flags & kAccAbstract) != 0) { |
| 596 | // Abstract methods don't have code. |
Nicolas Geoffray | 0c3c266 | 2015-10-15 13:53:04 +0100 | [diff] [blame] | 597 | } else if (Runtime::Current()->IsAotCompiler()) { |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 598 | const VerifiedMethod* verified_method = |
| 599 | driver->GetVerificationResults()->GetVerifiedMethod(method_ref); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 600 | bool compile = compilation_enabled && |
| 601 | // Basic checks, e.g., not <clinit>. |
| 602 | driver->GetVerificationResults() |
| 603 | ->IsCandidateForCompilation(method_ref, access_flags) && |
| 604 | // Did not fail to create VerifiedMethod metadata. |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 605 | verified_method != nullptr && |
| 606 | // Do not have failures that should punt to the interpreter. |
| 607 | !verified_method->HasRuntimeThrow() && |
| 608 | (verified_method->GetEncounteredVerificationFailures() & |
Andreas Gampe | a727e37 | 2015-08-25 09:22:37 -0700 | [diff] [blame] | 609 | (verifier::VERIFY_ERROR_FORCE_INTERPRETER | verifier::VERIFY_ERROR_LOCKING)) == 0 && |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 610 | // Is eligable for compilation by methods-to-compile filter. |
| 611 | driver->IsMethodToCompile(method_ref); |
| 612 | if (compile) { |
| 613 | // NOTE: if compiler declines to compile this method, it will return null. |
| 614 | compiled_method = driver->GetCompiler()->Compile(code_item, access_flags, invoke_type, |
| 615 | class_def_idx, method_idx, class_loader, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 616 | dex_file, dex_cache); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 617 | } |
| 618 | if (compiled_method == nullptr && |
| 619 | dex_to_dex_compilation_level != optimizer::DexToDexCompilationLevel::kDontDexToDexCompile) { |
| 620 | // TODO: add a command-line option to disable DEX-to-DEX compilation ? |
| 621 | // Do not optimize if a VerifiedMethod is missing. SafeCast elision, for example, relies on |
| 622 | // it. |
| 623 | compiled_method = optimizer::ArtCompileDEX( |
| 624 | driver, |
| 625 | code_item, |
| 626 | access_flags, |
| 627 | invoke_type, |
| 628 | class_def_idx, |
| 629 | method_idx, |
| 630 | class_loader, |
| 631 | dex_file, |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 632 | (verified_method != nullptr) |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 633 | ? dex_to_dex_compilation_level |
| 634 | : optimizer::DexToDexCompilationLevel::kRequired); |
| 635 | } |
Nicolas Geoffray | 0c3c266 | 2015-10-15 13:53:04 +0100 | [diff] [blame] | 636 | } else { |
| 637 | // This is for the JIT compiler, which has already ensured the class is verified. |
| 638 | // We can go straight to compiling. |
| 639 | DCHECK(Runtime::Current()->UseJit()); |
| 640 | compiled_method = driver->GetCompiler()->Compile(code_item, access_flags, invoke_type, |
| 641 | class_def_idx, method_idx, class_loader, |
| 642 | dex_file, dex_cache); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 643 | } |
| 644 | if (kTimeCompileMethod) { |
| 645 | uint64_t duration_ns = NanoTime() - start_ns; |
| 646 | if (duration_ns > MsToNs(driver->GetCompiler()->GetMaximumCompilationTimeBeforeWarning())) { |
| 647 | LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) |
| 648 | << " took " << PrettyDuration(duration_ns); |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | if (compiled_method != nullptr) { |
| 653 | // Count non-relative linker patches. |
| 654 | size_t non_relative_linker_patch_count = 0u; |
| 655 | for (const LinkerPatch& patch : compiled_method->GetPatches()) { |
| 656 | if (!patch.IsPcRelative()) { |
| 657 | ++non_relative_linker_patch_count; |
| 658 | } |
| 659 | } |
| 660 | bool compile_pic = driver->GetCompilerOptions().GetCompilePic(); // Off by default |
| 661 | // When compiling with PIC, there should be zero non-relative linker patches |
| 662 | CHECK(!compile_pic || non_relative_linker_patch_count == 0u); |
| 663 | |
| 664 | driver->AddCompiledMethod(method_ref, compiled_method, non_relative_linker_patch_count); |
| 665 | } |
| 666 | |
| 667 | // Done compiling, delete the verified method to reduce native memory usage. Do not delete in |
| 668 | // optimizing compiler, which may need the verified method again for inlining. |
| 669 | if (driver->GetCompilerKind() != Compiler::kOptimizing) { |
| 670 | driver->GetVerificationResults()->RemoveVerifiedMethod(method_ref); |
| 671 | } |
| 672 | |
| 673 | if (self->IsExceptionPending()) { |
| 674 | ScopedObjectAccess soa(self); |
| 675 | LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" |
| 676 | << self->GetException()->Dump(); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 677 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 678 | } |
| 679 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 680 | void CompilerDriver::CompileOne(Thread* self, ArtMethod* method, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 681 | DCHECK(!Runtime::Current()->IsStarted()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 682 | jobject jclass_loader; |
| 683 | const DexFile* dex_file; |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 684 | uint16_t class_def_idx; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 685 | uint32_t method_idx = method->GetDexMethodIndex(); |
| 686 | uint32_t access_flags = method->GetAccessFlags(); |
| 687 | InvokeType invoke_type = method->GetInvokeType(); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 688 | StackHandleScope<1> hs(self); |
| 689 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(method->GetDexCache())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 690 | { |
| 691 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 692 | ScopedLocalRef<jobject> local_class_loader( |
| 693 | soa.Env(), soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 694 | jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); |
| 695 | // Find the dex_file |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 696 | dex_file = method->GetDexFile(); |
| 697 | class_def_idx = method->GetClassDefIndex(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 698 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 699 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 700 | |
| 701 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 702 | ScopedThreadSuspension sts(self, kNative); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 703 | |
| 704 | std::vector<const DexFile*> dex_files; |
| 705 | dex_files.push_back(dex_file); |
| 706 | |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 707 | 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] | 708 | PreCompile(jclass_loader, dex_files, thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 709 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 710 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 711 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 712 | GetDexToDexCompilationLevel(self, |
| 713 | *this, |
| 714 | jclass_loader, |
| 715 | *dex_file, |
| 716 | dex_file->GetClassDef(class_def_idx)); |
| 717 | |
| 718 | CompileMethod(self, |
| 719 | this, |
| 720 | code_item, |
| 721 | access_flags, |
| 722 | invoke_type, |
| 723 | class_def_idx, |
| 724 | method_idx, |
| 725 | jclass_loader, |
| 726 | *dex_file, |
| 727 | dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 728 | true, |
| 729 | dex_cache); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 730 | |
| 731 | self->GetJniEnv()->DeleteGlobalRef(jclass_loader); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 732 | } |
| 733 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 734 | CompiledMethod* CompilerDriver::CompileArtMethod(Thread* self, ArtMethod* method) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 735 | const uint32_t method_idx = method->GetDexMethodIndex(); |
| 736 | const uint32_t access_flags = method->GetAccessFlags(); |
| 737 | const InvokeType invoke_type = method->GetInvokeType(); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 738 | StackHandleScope<2> hs(self); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 739 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 740 | method->GetDeclaringClass()->GetClassLoader())); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 741 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(method->GetDexCache())); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 742 | jobject jclass_loader = class_loader.ToJObject(); |
| 743 | const DexFile* dex_file = method->GetDexFile(); |
| 744 | const uint16_t class_def_idx = method->GetClassDefIndex(); |
| 745 | const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 746 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 747 | GetDexToDexCompilationLevel(self, *this, class_loader, *dex_file, class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 748 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 749 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 750 | ScopedThreadSuspension sts(self, kNative); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 751 | CompileMethod(self, |
| 752 | this, |
| 753 | code_item, |
| 754 | access_flags, |
| 755 | invoke_type, |
| 756 | class_def_idx, |
| 757 | method_idx, |
| 758 | jclass_loader, |
| 759 | *dex_file, |
| 760 | dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 761 | true, |
| 762 | dex_cache); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 763 | auto* compiled_method = GetCompiledMethod(MethodReference(dex_file, method_idx)); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 764 | return compiled_method; |
| 765 | } |
| 766 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 767 | 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] | 768 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 769 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 770 | const DexFile* dex_file = dex_files[i]; |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 771 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 772 | ResolveDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 773 | } |
| 774 | } |
| 775 | |
| 776 | 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] | 777 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 778 | LoadImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 779 | VLOG(compiler) << "LoadImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 780 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 781 | const bool verification_enabled = compiler_options_->IsVerificationEnabled(); |
| 782 | const bool never_verify = compiler_options_->NeverVerify(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 783 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 784 | // We need to resolve for never_verify since it needs to run dex to dex to add the |
| 785 | // RETURN_VOID_NO_BARRIER. |
| 786 | if (never_verify || verification_enabled) { |
| 787 | Resolve(class_loader, dex_files, thread_pool, timings); |
| 788 | VLOG(compiler) << "Resolve: " << GetMemoryUsageString(false); |
| 789 | } |
| 790 | |
| 791 | if (never_verify) { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 792 | VLOG(compiler) << "Verify none mode specified, skipping verification."; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 793 | SetVerified(class_loader, dex_files, thread_pool, timings); |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 794 | } |
| 795 | |
| 796 | if (!verification_enabled) { |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 797 | return; |
| 798 | } |
| 799 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 800 | Verify(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 801 | VLOG(compiler) << "Verify: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 802 | |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 803 | if (had_hard_verifier_failure_ && GetCompilerOptions().AbortOnHardVerifierFailure()) { |
| 804 | LOG(FATAL) << "Had a hard failure verifying all classes, and was asked to abort in such " |
| 805 | << "situations. Please check the log."; |
| 806 | } |
| 807 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 808 | InitializeClasses(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 809 | VLOG(compiler) << "InitializeClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 810 | |
| 811 | UpdateImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 812 | VLOG(compiler) << "UpdateImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 813 | } |
| 814 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 815 | bool CompilerDriver::IsImageClass(const char* descriptor) const { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 816 | if (!IsImage()) { |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 817 | // NOTE: Currently unreachable, all callers check IsImage(). |
| 818 | return false; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 819 | } else { |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 820 | return image_classes_->find(descriptor) != image_classes_->end(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 821 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 822 | } |
| 823 | |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 824 | bool CompilerDriver::IsClassToCompile(const char* descriptor) const { |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 825 | if (kRestrictCompilationFiltersToImage && !IsImage()) { |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 826 | return true; |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 827 | } |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 828 | |
| 829 | if (classes_to_compile_ == nullptr) { |
| 830 | return true; |
| 831 | } |
| 832 | return classes_to_compile_->find(descriptor) != classes_to_compile_->end(); |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 833 | } |
| 834 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 835 | bool CompilerDriver::IsMethodToCompile(const MethodReference& method_ref) const { |
| 836 | if (kRestrictCompilationFiltersToImage && !IsImage()) { |
| 837 | return true; |
| 838 | } |
| 839 | |
| 840 | if (methods_to_compile_ == nullptr) { |
| 841 | return true; |
| 842 | } |
| 843 | |
| 844 | std::string tmp = PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file, true); |
| 845 | return methods_to_compile_->find(tmp.c_str()) != methods_to_compile_->end(); |
| 846 | } |
| 847 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 848 | class ResolveCatchBlockExceptionsClassVisitor : public ClassVisitor { |
| 849 | public: |
| 850 | ResolveCatchBlockExceptionsClassVisitor( |
| 851 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve) |
| 852 | : exceptions_to_resolve_(exceptions_to_resolve) {} |
| 853 | |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 854 | virtual bool Visit(mirror::Class* c) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 855 | const auto pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
| 856 | for (auto& m : c->GetVirtualMethods(pointer_size)) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 857 | ResolveExceptionsForMethod(&m, pointer_size); |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 858 | } |
| 859 | for (auto& m : c->GetDirectMethods(pointer_size)) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 860 | ResolveExceptionsForMethod(&m, pointer_size); |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 861 | } |
| 862 | return true; |
| 863 | } |
| 864 | |
| 865 | private: |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 866 | void ResolveExceptionsForMethod(ArtMethod* method_handle, size_t pointer_size) |
| 867 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 868 | const DexFile::CodeItem* code_item = method_handle->GetCodeItem(); |
| 869 | if (code_item == nullptr) { |
| 870 | return; // native or abstract method |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 871 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 872 | if (code_item->tries_size_ == 0) { |
| 873 | return; // nothing to process |
| 874 | } |
| 875 | const uint8_t* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); |
| 876 | size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 877 | for (size_t i = 0; i < num_encoded_catch_handlers; i++) { |
| 878 | int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); |
| 879 | bool has_catch_all = false; |
| 880 | if (encoded_catch_handler_size <= 0) { |
| 881 | encoded_catch_handler_size = -encoded_catch_handler_size; |
| 882 | has_catch_all = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 883 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 884 | for (int32_t j = 0; j < encoded_catch_handler_size; j++) { |
| 885 | uint16_t encoded_catch_handler_handlers_type_idx = |
| 886 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 887 | // Add to set of types to resolve if not already in the dex cache resolved types |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 888 | if (!method_handle->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx, |
| 889 | pointer_size)) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 890 | exceptions_to_resolve_.emplace(encoded_catch_handler_handlers_type_idx, |
| 891 | method_handle->GetDexFile()); |
| 892 | } |
| 893 | // ignore address associated with catch handler |
| 894 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 895 | } |
| 896 | if (has_catch_all) { |
| 897 | // ignore catch all address |
| 898 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 899 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 900 | } |
| 901 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 902 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 903 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve_; |
| 904 | }; |
| 905 | |
| 906 | class RecordImageClassesVisitor : public ClassVisitor { |
| 907 | public: |
| 908 | explicit RecordImageClassesVisitor(std::unordered_set<std::string>* image_classes) |
| 909 | : image_classes_(image_classes) {} |
| 910 | |
| 911 | bool Visit(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 912 | std::string temp; |
| 913 | image_classes_->insert(klass->GetDescriptor(&temp)); |
| 914 | return true; |
| 915 | } |
| 916 | |
| 917 | private: |
| 918 | std::unordered_set<std::string>* const image_classes_; |
| 919 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 920 | |
| 921 | // Make a list of descriptors for classes to include in the image |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 922 | void CompilerDriver::LoadImageClasses(TimingLogger* timings) { |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 923 | CHECK(timings != nullptr); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 924 | if (!IsImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 925 | return; |
| 926 | } |
| 927 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 928 | TimingLogger::ScopedTiming t("LoadImageClasses", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 929 | // Make a first class to load all classes explicitly listed in the file |
| 930 | Thread* self = Thread::Current(); |
| 931 | ScopedObjectAccess soa(self); |
| 932 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 933 | CHECK(image_classes_.get() != nullptr); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 934 | for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 935 | const std::string& descriptor(*it); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 936 | StackHandleScope<1> hs(self); |
| 937 | Handle<mirror::Class> klass( |
| 938 | hs.NewHandle(class_linker->FindSystemClass(self, descriptor.c_str()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 939 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 940 | VLOG(compiler) << "Failed to find class " << descriptor; |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 941 | image_classes_->erase(it++); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 942 | self->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 943 | } else { |
| 944 | ++it; |
| 945 | } |
| 946 | } |
| 947 | |
| 948 | // Resolve exception classes referenced by the loaded classes. The catch logic assumes |
| 949 | // exceptions are resolved by the verifier when there is a catch block in an interested method. |
| 950 | // 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] | 951 | std::set<std::pair<uint16_t, const DexFile*>> unresolved_exception_types; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 952 | StackHandleScope<1> hs(self); |
| 953 | Handle<mirror::Class> java_lang_Throwable( |
| 954 | hs.NewHandle(class_linker->FindSystemClass(self, "Ljava/lang/Throwable;"))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 955 | do { |
| 956 | unresolved_exception_types.clear(); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 957 | ResolveCatchBlockExceptionsClassVisitor visitor(unresolved_exception_types); |
| 958 | class_linker->VisitClasses(&visitor); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 959 | for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { |
| 960 | uint16_t exception_type_idx = exception_type.first; |
| 961 | const DexFile* dex_file = exception_type.second; |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 962 | StackHandleScope<2> hs2(self); |
Mathieu Chartier | d57d454 | 2015-10-14 10:55:30 -0700 | [diff] [blame] | 963 | Handle<mirror::DexCache> dex_cache(hs2.NewHandle(class_linker->RegisterDexFile( |
| 964 | *dex_file, |
| 965 | Runtime::Current()->GetLinearAlloc()))); |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 966 | Handle<mirror::Class> klass(hs2.NewHandle( |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 967 | class_linker->ResolveType(*dex_file, exception_type_idx, dex_cache, |
| 968 | NullHandle<mirror::ClassLoader>()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 969 | if (klass.Get() == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 970 | const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); |
| 971 | const char* descriptor = dex_file->GetTypeDescriptor(type_id); |
| 972 | LOG(FATAL) << "Failed to resolve class " << descriptor; |
| 973 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 974 | DCHECK(java_lang_Throwable->IsAssignableFrom(klass.Get())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 975 | } |
| 976 | // Resolving exceptions may load classes that reference more exceptions, iterate until no |
| 977 | // more are found |
| 978 | } while (!unresolved_exception_types.empty()); |
| 979 | |
| 980 | // We walk the roots looking for classes so that we'll pick up the |
| 981 | // above classes plus any classes them depend on such super |
| 982 | // classes, interfaces, and the required ClassLinker roots. |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 983 | RecordImageClassesVisitor visitor(image_classes_.get()); |
| 984 | class_linker->VisitClasses(&visitor); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 985 | |
| 986 | CHECK_NE(image_classes_->size(), 0U); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 987 | } |
| 988 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 989 | static void MaybeAddToImageClasses(Handle<mirror::Class> c, |
| 990 | std::unordered_set<std::string>* image_classes) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 991 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 992 | Thread* self = Thread::Current(); |
| 993 | StackHandleScope<1> hs(self); |
| 994 | // 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] | 995 | MutableHandle<mirror::Class> klass(hs.NewHandle(c.Get())); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 996 | std::string temp; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 997 | const size_t pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 998 | while (!klass->IsObjectClass()) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 999 | const char* descriptor = klass->GetDescriptor(&temp); |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1000 | std::pair<std::unordered_set<std::string>::iterator, bool> result = |
| 1001 | image_classes->insert(descriptor); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1002 | if (!result.second) { // Previously inserted. |
| 1003 | break; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1004 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1005 | VLOG(compiler) << "Adding " << descriptor << " to image classes"; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1006 | for (size_t i = 0; i < klass->NumDirectInterfaces(); ++i) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1007 | StackHandleScope<1> hs2(self); |
| 1008 | MaybeAddToImageClasses(hs2.NewHandle(mirror::Class::GetDirectInterface(self, klass, i)), |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1009 | image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1010 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1011 | for (auto& m : c->GetVirtualMethods(pointer_size)) { |
| 1012 | if (m.IsMiranda() || (true)) { |
| 1013 | StackHandleScope<1> hs2(self); |
| 1014 | MaybeAddToImageClasses(hs2.NewHandle(m.GetDeclaringClass()), image_classes); |
| 1015 | } |
| 1016 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1017 | if (klass->IsArrayClass()) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1018 | StackHandleScope<1> hs2(self); |
| 1019 | MaybeAddToImageClasses(hs2.NewHandle(klass->GetComponentType()), image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1020 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1021 | klass.Assign(klass->GetSuperClass()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1022 | } |
| 1023 | } |
| 1024 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1025 | // Keeps all the data for the update together. Also doubles as the reference visitor. |
| 1026 | // Note: we can use object pointers because we suspend all threads. |
| 1027 | class ClinitImageUpdate { |
| 1028 | public: |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1029 | static ClinitImageUpdate* Create(std::unordered_set<std::string>* image_class_descriptors, |
| 1030 | Thread* self, ClassLinker* linker, std::string* error_msg) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1031 | std::unique_ptr<ClinitImageUpdate> res(new ClinitImageUpdate(image_class_descriptors, self, |
| 1032 | linker)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1033 | if (res->dex_cache_class_ == nullptr) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1034 | *error_msg = "Could not find DexCache class."; |
| 1035 | return nullptr; |
| 1036 | } |
| 1037 | |
| 1038 | return res.release(); |
| 1039 | } |
| 1040 | |
| 1041 | ~ClinitImageUpdate() { |
| 1042 | // Allow others to suspend again. |
| 1043 | self_->EndAssertNoThreadSuspension(old_cause_); |
| 1044 | } |
| 1045 | |
| 1046 | // Visitor for VisitReferences. |
| 1047 | void operator()(mirror::Object* object, MemberOffset field_offset, bool /* is_static */) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1048 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1049 | mirror::Object* ref = object->GetFieldObject<mirror::Object>(field_offset); |
| 1050 | if (ref != nullptr) { |
| 1051 | VisitClinitClassesObject(ref); |
| 1052 | } |
| 1053 | } |
| 1054 | |
| 1055 | // java.lang.Reference visitor for VisitReferences. |
Mathieu Chartier | da7c650 | 2015-07-23 16:01:26 -0700 | [diff] [blame] | 1056 | void operator()(mirror::Class* klass ATTRIBUTE_UNUSED, mirror::Reference* ref ATTRIBUTE_UNUSED) |
| 1057 | const {} |
| 1058 | |
| 1059 | // Ignore class native roots. |
| 1060 | void VisitRootIfNonNull(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) |
| 1061 | const {} |
| 1062 | void VisitRoot(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) const {} |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1063 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1064 | void Walk() SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1065 | // Use the initial classes as roots for a search. |
| 1066 | for (mirror::Class* klass_root : image_classes_) { |
| 1067 | VisitClinitClassesObject(klass_root); |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | private: |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1072 | class FindImageClassesVisitor : public ClassVisitor { |
| 1073 | public: |
| 1074 | explicit FindImageClassesVisitor(ClinitImageUpdate* data) : data_(data) {} |
| 1075 | |
| 1076 | bool Visit(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 1077 | std::string temp; |
| 1078 | const char* name = klass->GetDescriptor(&temp); |
| 1079 | if (data_->image_class_descriptors_->find(name) != data_->image_class_descriptors_->end()) { |
| 1080 | data_->image_classes_.push_back(klass); |
| 1081 | } else { |
| 1082 | // Check whether it is initialized and has a clinit. They must be kept, too. |
| 1083 | if (klass->IsInitialized() && klass->FindClassInitializer( |
| 1084 | Runtime::Current()->GetClassLinker()->GetImagePointerSize()) != nullptr) { |
| 1085 | data_->image_classes_.push_back(klass); |
| 1086 | } |
| 1087 | } |
| 1088 | return true; |
| 1089 | } |
| 1090 | |
| 1091 | private: |
| 1092 | ClinitImageUpdate* const data_; |
| 1093 | }; |
| 1094 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1095 | ClinitImageUpdate(std::unordered_set<std::string>* image_class_descriptors, Thread* self, |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1096 | ClassLinker* linker) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1097 | SHARED_REQUIRES(Locks::mutator_lock_) : |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1098 | image_class_descriptors_(image_class_descriptors), self_(self) { |
| 1099 | CHECK(linker != nullptr); |
| 1100 | CHECK(image_class_descriptors != nullptr); |
| 1101 | |
| 1102 | // Make sure nobody interferes with us. |
| 1103 | old_cause_ = self->StartAssertNoThreadSuspension("Boot image closure"); |
| 1104 | |
| 1105 | // Find the interesting classes. |
Andreas Gampe | dc8b63c | 2014-12-02 14:39:52 -0800 | [diff] [blame] | 1106 | dex_cache_class_ = linker->LookupClass(self, "Ljava/lang/DexCache;", |
| 1107 | ComputeModifiedUtf8Hash("Ljava/lang/DexCache;"), nullptr); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1108 | |
| 1109 | // Find all the already-marked classes. |
| 1110 | WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1111 | FindImageClassesVisitor visitor(this); |
| 1112 | linker->VisitClasses(&visitor); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1113 | } |
| 1114 | |
| 1115 | void VisitClinitClassesObject(mirror::Object* object) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1116 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1117 | DCHECK(object != nullptr); |
| 1118 | if (marked_objects_.find(object) != marked_objects_.end()) { |
| 1119 | // Already processed. |
| 1120 | return; |
| 1121 | } |
| 1122 | |
| 1123 | // Mark it. |
| 1124 | marked_objects_.insert(object); |
| 1125 | |
| 1126 | if (object->IsClass()) { |
| 1127 | // If it is a class, add it. |
| 1128 | StackHandleScope<1> hs(self_); |
| 1129 | MaybeAddToImageClasses(hs.NewHandle(object->AsClass()), image_class_descriptors_); |
| 1130 | } else { |
| 1131 | // Else visit the object's class. |
| 1132 | VisitClinitClassesObject(object->GetClass()); |
| 1133 | } |
| 1134 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1135 | // If it is not a DexCache, visit all references. |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1136 | mirror::Class* klass = object->GetClass(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1137 | if (klass != dex_cache_class_) { |
Mathieu Chartier | 059ef3d | 2015-08-18 13:54:21 -0700 | [diff] [blame] | 1138 | object->VisitReferences(*this, *this); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1139 | } |
| 1140 | } |
| 1141 | |
| 1142 | mutable std::unordered_set<mirror::Object*> marked_objects_; |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1143 | std::unordered_set<std::string>* const image_class_descriptors_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1144 | std::vector<mirror::Class*> image_classes_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1145 | const mirror::Class* dex_cache_class_; |
| 1146 | Thread* const self_; |
| 1147 | const char* old_cause_; |
| 1148 | |
| 1149 | DISALLOW_COPY_AND_ASSIGN(ClinitImageUpdate); |
| 1150 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1151 | |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1152 | void CompilerDriver::UpdateImageClasses(TimingLogger* timings) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1153 | if (IsImage()) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1154 | TimingLogger::ScopedTiming t("UpdateImageClasses", timings); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1155 | |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1156 | Runtime* runtime = Runtime::Current(); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1157 | |
| 1158 | // Suspend all threads. |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1159 | ScopedSuspendAll ssa(__FUNCTION__); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1160 | |
| 1161 | std::string error_msg; |
| 1162 | std::unique_ptr<ClinitImageUpdate> update(ClinitImageUpdate::Create(image_classes_.get(), |
| 1163 | Thread::Current(), |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1164 | runtime->GetClassLinker(), |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1165 | &error_msg)); |
| 1166 | CHECK(update.get() != nullptr) << error_msg; // TODO: Soft failure? |
| 1167 | |
| 1168 | // Do the marking. |
| 1169 | update->Walk(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1170 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1171 | } |
| 1172 | |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 1173 | bool CompilerDriver::CanAssumeClassIsLoaded(mirror::Class* klass) { |
| 1174 | Runtime* runtime = Runtime::Current(); |
| 1175 | if (!runtime->IsAotCompiler()) { |
| 1176 | DCHECK(runtime->UseJit()); |
| 1177 | // Having the klass reference here implies that the klass is already loaded. |
| 1178 | return true; |
| 1179 | } |
| 1180 | if (!IsImage()) { |
| 1181 | // Assume loaded only if klass is in the boot image. App classes cannot be assumed |
| 1182 | // loaded because we don't even know what class loader will be used to load them. |
| 1183 | bool class_in_image = runtime->GetHeap()->FindSpaceFromObject(klass, false)->IsImageSpace(); |
| 1184 | return class_in_image; |
| 1185 | } |
| 1186 | std::string temp; |
| 1187 | const char* descriptor = klass->GetDescriptor(&temp); |
| 1188 | return IsImageClass(descriptor); |
| 1189 | } |
| 1190 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1191 | bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 1192 | if (IsImage() && |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1193 | IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { |
Andreas Gampe | 58a5af8 | 2014-07-31 16:23:49 -0700 | [diff] [blame] | 1194 | { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1195 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1196 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1197 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1198 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 58a5af8 | 2014-07-31 16:23:49 -0700 | [diff] [blame] | 1199 | if (resolved_class == nullptr) { |
| 1200 | // Erroneous class. |
| 1201 | stats_->TypeNotInDexCache(); |
| 1202 | return false; |
| 1203 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1204 | } |
| 1205 | stats_->TypeInDexCache(); |
| 1206 | return true; |
| 1207 | } else { |
| 1208 | stats_->TypeNotInDexCache(); |
| 1209 | return false; |
| 1210 | } |
| 1211 | } |
| 1212 | |
| 1213 | bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, |
| 1214 | uint32_t string_idx) { |
| 1215 | // See also Compiler::ResolveDexFile |
| 1216 | |
| 1217 | bool result = false; |
| 1218 | if (IsImage()) { |
| 1219 | // We resolve all const-string strings when building for the image. |
| 1220 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1221 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1222 | ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| 1223 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 1224 | soa.Self(), dex_file, false))); |
| 1225 | class_linker->ResolveString(dex_file, string_idx, dex_cache); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1226 | result = true; |
| 1227 | } |
| 1228 | if (result) { |
| 1229 | stats_->StringInDexCache(); |
| 1230 | } else { |
| 1231 | stats_->StringNotInDexCache(); |
| 1232 | } |
| 1233 | return result; |
| 1234 | } |
| 1235 | |
| 1236 | bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, |
| 1237 | uint32_t type_idx, |
| 1238 | bool* type_known_final, bool* type_known_abstract, |
| 1239 | bool* equals_referrers_class) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1240 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1241 | *type_known_final = false; |
| 1242 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1243 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1244 | *type_known_abstract = false; |
| 1245 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1246 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1247 | *equals_referrers_class = false; |
| 1248 | } |
| 1249 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1250 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1251 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1252 | // Get type from dex cache assuming it was populated by the verifier |
| 1253 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1254 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1255 | stats_->TypeNeedsAccessCheck(); |
| 1256 | return false; // Unknown class needs access checks. |
| 1257 | } |
| 1258 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1259 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1260 | *equals_referrers_class = (method_id.class_idx_ == type_idx); |
| 1261 | } |
| 1262 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1263 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1264 | stats_->TypeNeedsAccessCheck(); |
| 1265 | return false; // Incomplete referrer knowledge needs access check. |
| 1266 | } |
| 1267 | // Perform access check, will return true if access is ok or false if we're going to have to |
| 1268 | // check this at runtime (for example for class loaders). |
| 1269 | bool result = referrer_class->CanAccess(resolved_class); |
| 1270 | if (result) { |
| 1271 | stats_->TypeDoesntNeedAccessCheck(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1272 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1273 | *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); |
| 1274 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1275 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1276 | *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); |
| 1277 | } |
| 1278 | } else { |
| 1279 | stats_->TypeNeedsAccessCheck(); |
| 1280 | } |
| 1281 | return result; |
| 1282 | } |
| 1283 | |
| 1284 | bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, |
| 1285 | const DexFile& dex_file, |
| 1286 | uint32_t type_idx) { |
| 1287 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1288 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1289 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1290 | // Get type from dex cache assuming it was populated by the verifier. |
| 1291 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1292 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1293 | stats_->TypeNeedsAccessCheck(); |
| 1294 | return false; // Unknown class needs access checks. |
| 1295 | } |
| 1296 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
| 1297 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1298 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1299 | stats_->TypeNeedsAccessCheck(); |
| 1300 | return false; // Incomplete referrer knowledge needs access check. |
| 1301 | } |
| 1302 | // Perform access and instantiable checks, will return true if access is ok or false if we're |
| 1303 | // going to have to check this at runtime (for example for class loaders). |
| 1304 | bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); |
| 1305 | if (result) { |
| 1306 | stats_->TypeDoesntNeedAccessCheck(); |
| 1307 | } else { |
| 1308 | stats_->TypeNeedsAccessCheck(); |
| 1309 | } |
| 1310 | return result; |
| 1311 | } |
| 1312 | |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1313 | bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, |
| 1314 | bool* is_type_initialized, bool* use_direct_type_ptr, |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1315 | uintptr_t* direct_type_ptr, bool* out_is_finalizable) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1316 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1317 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1318 | mirror::DexCache* dex_cache = runtime->GetClassLinker()->FindDexCache( |
| 1319 | soa.Self(), dex_file, false); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1320 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1321 | if (resolved_class == nullptr) { |
| 1322 | return false; |
| 1323 | } |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1324 | if (GetCompilerOptions().GetCompilePic()) { |
| 1325 | // Do not allow a direct class pointer to be used when compiling for position-independent |
| 1326 | return false; |
| 1327 | } |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1328 | *out_is_finalizable = resolved_class->IsFinalizable(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1329 | gc::Heap* heap = runtime->GetHeap(); |
| 1330 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1331 | const bool support_boot_image_fixup = GetSupportBootImageFixup(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1332 | if (compiling_boot) { |
| 1333 | // boot -> boot class pointers. |
| 1334 | // True if the class is in the image at boot compiling time. |
| 1335 | const bool is_image_class = IsImage() && IsImageClass( |
| 1336 | dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); |
| 1337 | // True if pc relative load works. |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1338 | if (is_image_class && support_boot_image_fixup) { |
| 1339 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1340 | *use_direct_type_ptr = false; |
| 1341 | *direct_type_ptr = 0; |
| 1342 | return true; |
| 1343 | } else { |
| 1344 | return false; |
| 1345 | } |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1346 | } else if (runtime->UseJit() && !heap->IsMovableObject(resolved_class)) { |
| 1347 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1348 | // If the class may move around, then don't embed it as a direct pointer. |
| 1349 | *use_direct_type_ptr = true; |
| 1350 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1351 | return true; |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1352 | } else { |
| 1353 | // True if the class is in the image at app compiling time. |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1354 | const bool class_in_image = heap->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1355 | if (class_in_image && support_boot_image_fixup) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1356 | // boot -> app class pointers. |
| 1357 | *is_type_initialized = resolved_class->IsInitialized(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1358 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1359 | *use_direct_type_ptr = !GetCompilerOptions().GetIncludePatchInformation(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1360 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1361 | return true; |
| 1362 | } else { |
| 1363 | // app -> app class pointers. |
| 1364 | // Give up because app does not have an image and class |
| 1365 | // isn't created at compile time. TODO: implement this |
| 1366 | // if/when each app gets an image. |
| 1367 | return false; |
| 1368 | } |
| 1369 | } |
| 1370 | } |
| 1371 | |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1372 | bool CompilerDriver::CanEmbedReferenceTypeInCode(ClassReference* ref, |
| 1373 | bool* use_direct_ptr, |
| 1374 | uintptr_t* direct_type_ptr) { |
| 1375 | CHECK(ref != nullptr); |
| 1376 | CHECK(use_direct_ptr != nullptr); |
| 1377 | CHECK(direct_type_ptr != nullptr); |
| 1378 | |
| 1379 | ScopedObjectAccess soa(Thread::Current()); |
| 1380 | mirror::Class* reference_class = mirror::Reference::GetJavaLangRefReference(); |
Andreas Gampe | 928f72b | 2014-09-09 19:53:48 -0700 | [diff] [blame] | 1381 | bool is_initialized = false; |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1382 | bool unused_finalizable; |
| 1383 | // Make sure we have a finished Reference class object before attempting to use it. |
| 1384 | if (!CanEmbedTypeInCode(*reference_class->GetDexCache()->GetDexFile(), |
| 1385 | reference_class->GetDexTypeIndex(), &is_initialized, |
| 1386 | use_direct_ptr, direct_type_ptr, &unused_finalizable) || |
| 1387 | !is_initialized) { |
| 1388 | return false; |
| 1389 | } |
| 1390 | ref->first = &reference_class->GetDexFile(); |
| 1391 | ref->second = reference_class->GetDexClassDefIndex(); |
| 1392 | return true; |
| 1393 | } |
| 1394 | |
| 1395 | uint32_t CompilerDriver::GetReferenceSlowFlagOffset() const { |
| 1396 | ScopedObjectAccess soa(Thread::Current()); |
| 1397 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1398 | DCHECK(klass->IsInitialized()); |
| 1399 | return klass->GetSlowPathFlagOffset().Uint32Value(); |
| 1400 | } |
| 1401 | |
| 1402 | uint32_t CompilerDriver::GetReferenceDisableFlagOffset() const { |
| 1403 | ScopedObjectAccess soa(Thread::Current()); |
| 1404 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1405 | DCHECK(klass->IsInitialized()); |
| 1406 | return klass->GetDisableIntrinsicFlagOffset().Uint32Value(); |
| 1407 | } |
| 1408 | |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1409 | DexCacheArraysLayout CompilerDriver::GetDexCacheArraysLayout(const DexFile* dex_file) { |
| 1410 | // Currently only image dex caches have fixed array layout. |
| 1411 | return IsImage() && GetSupportBootImageFixup() |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1412 | ? DexCacheArraysLayout(GetInstructionSetPointerSize(instruction_set_), dex_file) |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1413 | : DexCacheArraysLayout(); |
| 1414 | } |
| 1415 | |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1416 | void CompilerDriver::ProcessedInstanceField(bool resolved) { |
| 1417 | if (!resolved) { |
| 1418 | stats_->UnresolvedInstanceField(); |
| 1419 | } else { |
| 1420 | stats_->ResolvedInstanceField(); |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | void CompilerDriver::ProcessedStaticField(bool resolved, bool local) { |
| 1425 | if (!resolved) { |
| 1426 | stats_->UnresolvedStaticField(); |
| 1427 | } else if (local) { |
| 1428 | stats_->ResolvedLocalStaticField(); |
| 1429 | } else { |
| 1430 | stats_->ResolvedStaticField(); |
| 1431 | } |
| 1432 | } |
| 1433 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1434 | void CompilerDriver::ProcessedInvoke(InvokeType invoke_type, int flags) { |
| 1435 | stats_->ProcessedInvoke(invoke_type, flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1436 | } |
| 1437 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1438 | ArtField* CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, |
| 1439 | const DexCompilationUnit* mUnit, bool is_put, |
| 1440 | const ScopedObjectAccess& soa) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1441 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1442 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1443 | mirror::Class* referrer_class; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1444 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1445 | { |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1446 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1447 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1448 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1449 | resolved_field = ResolveField(soa, dex_cache, class_loader_handle, mUnit, field_idx, false); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1450 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1451 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader_handle, mUnit) : nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1452 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1453 | bool can_link = false; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1454 | if (resolved_field != nullptr && referrer_class != nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1455 | std::pair<bool, bool> fast_path = IsFastInstanceField( |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1456 | dex_cache.Get(), referrer_class, resolved_field, field_idx); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1457 | can_link = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1458 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1459 | ProcessedInstanceField(can_link); |
| 1460 | return can_link ? resolved_field : nullptr; |
| 1461 | } |
| 1462 | |
| 1463 | bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
| 1464 | bool is_put, MemberOffset* field_offset, |
| 1465 | bool* is_volatile) { |
| 1466 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1467 | ArtField* resolved_field = ComputeInstanceFieldInfo(field_idx, mUnit, is_put, soa); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1468 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1469 | if (resolved_field == nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1470 | // Conservative defaults. |
| 1471 | *is_volatile = true; |
| 1472 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1473 | return false; |
| 1474 | } else { |
| 1475 | *is_volatile = resolved_field->IsVolatile(); |
| 1476 | *field_offset = resolved_field->GetOffset(); |
| 1477 | return true; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1478 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1479 | } |
| 1480 | |
| 1481 | bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1482 | bool is_put, MemberOffset* field_offset, |
| 1483 | uint32_t* storage_index, bool* is_referrers_class, |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1484 | bool* is_volatile, bool* is_initialized, |
| 1485 | Primitive::Type* type) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1486 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1487 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1488 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1489 | mirror::Class* referrer_class; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1490 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1491 | { |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1492 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1493 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1494 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1495 | resolved_field = |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1496 | ResolveField(soa, dex_cache, class_loader_handle, mUnit, field_idx, true); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1497 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1498 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader_handle, mUnit) : nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1499 | } |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1500 | bool result = false; |
| 1501 | if (resolved_field != nullptr && referrer_class != nullptr) { |
| 1502 | *is_volatile = IsFieldVolatile(resolved_field); |
| 1503 | std::pair<bool, bool> fast_path = IsFastStaticField( |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1504 | dex_cache.Get(), referrer_class, resolved_field, field_idx, storage_index); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1505 | result = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1506 | } |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1507 | if (result) { |
| 1508 | *field_offset = GetFieldOffset(resolved_field); |
| 1509 | *is_referrers_class = IsStaticFieldInReferrerClass(referrer_class, resolved_field); |
| 1510 | // *is_referrers_class == true implies no worrying about class initialization. |
| 1511 | *is_initialized = (*is_referrers_class) || |
| 1512 | (IsStaticFieldsClassInitialized(referrer_class, resolved_field) && |
| 1513 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index)); |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1514 | *type = resolved_field->GetTypeAsPrimitiveType(); |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1515 | } else { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1516 | // Conservative defaults. |
| 1517 | *is_volatile = true; |
| 1518 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
| 1519 | *storage_index = -1; |
| 1520 | *is_referrers_class = false; |
| 1521 | *is_initialized = false; |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1522 | *type = Primitive::kPrimVoid; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1523 | } |
| 1524 | ProcessedStaticField(result, *is_referrers_class); |
| 1525 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1526 | } |
| 1527 | |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1528 | void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, |
| 1529 | bool no_guarantee_of_dex_cache_entry, |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1530 | const mirror::Class* referrer_class, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1531 | ArtMethod* method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1532 | int* stats_flags, |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1533 | MethodReference* target_method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1534 | uintptr_t* direct_code, |
| 1535 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1536 | // For direct and static methods compute possible direct_code and direct_method values, ie |
| 1537 | // an address for the Method* being invoked and an address of the code for that Method*. |
| 1538 | // For interface calls compute a value for direct_method that is the interface method being |
| 1539 | // 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] | 1540 | *direct_code = 0; |
| 1541 | *direct_method = 0; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1542 | Runtime* const runtime = Runtime::Current(); |
| 1543 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1544 | auto* cl = runtime->GetClassLinker(); |
| 1545 | const auto pointer_size = cl->GetImagePointerSize(); |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1546 | bool use_dex_cache = GetCompilerOptions().GetCompilePic(); // Off by default |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1547 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1548 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1549 | const bool force_relocations = (compiling_boot || |
| 1550 | GetCompilerOptions().GetIncludePatchInformation()); |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1551 | if (sharp_type != kStatic && sharp_type != kDirect) { |
| 1552 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1553 | } |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1554 | // TODO: support patching on all architectures. |
| 1555 | use_dex_cache = use_dex_cache || (force_relocations && !support_boot_image_fixup_); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1556 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
| 1557 | bool method_code_in_boot = declaring_class->GetClassLoader() == nullptr; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1558 | if (!use_dex_cache) { |
| 1559 | if (!method_code_in_boot) { |
| 1560 | use_dex_cache = true; |
| 1561 | } else { |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1562 | bool has_clinit_trampoline = |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1563 | method->IsStatic() && !declaring_class->IsInitialized(); |
| 1564 | if (has_clinit_trampoline && declaring_class != referrer_class) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1565 | // Ensure we run the clinit trampoline unless we are invoking a static method in the same |
| 1566 | // class. |
| 1567 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1568 | } |
| 1569 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1570 | } |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1571 | if (runtime->UseJit()) { |
| 1572 | // If we are the JIT, then don't allow a direct call to the interpreter bridge since this will |
| 1573 | // never be updated even after we compile the method. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1574 | if (cl->IsQuickToInterpreterBridge( |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1575 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method)))) { |
| 1576 | use_dex_cache = true; |
| 1577 | } |
| 1578 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1579 | if (method_code_in_boot) { |
| 1580 | *stats_flags |= kFlagDirectCallToBoot | kFlagDirectMethodToBoot; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1581 | } |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1582 | if (!use_dex_cache && force_relocations) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1583 | bool is_in_image; |
| 1584 | if (IsImage()) { |
| 1585 | is_in_image = IsImageClass(method->GetDeclaringClassDescriptor()); |
| 1586 | } else { |
| 1587 | is_in_image = instruction_set_ != kX86 && instruction_set_ != kX86_64 && |
Vladimir Marko | c08ab29 | 2015-06-22 14:35:42 +0100 | [diff] [blame] | 1588 | heap->FindSpaceFromObject(method->GetDeclaringClass(), false)->IsImageSpace() && |
| 1589 | !cl->IsQuickToInterpreterBridge( |
| 1590 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method))); |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1591 | } |
| 1592 | if (!is_in_image) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1593 | // We can only branch directly to Methods that are resolved in the DexCache. |
| 1594 | // Otherwise we won't invoke the resolution trampoline. |
| 1595 | use_dex_cache = true; |
| 1596 | } |
| 1597 | } |
| 1598 | // The method is defined not within this dex file. We need a dex cache slot within the current |
| 1599 | // dex file or direct pointers. |
| 1600 | bool must_use_direct_pointers = false; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1601 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
| 1602 | if (target_method->dex_file == dex_cache->GetDexFile() && |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1603 | !(runtime->UseJit() && dex_cache->GetResolvedMethod( |
| 1604 | method->GetDexMethodIndex(), pointer_size) == nullptr)) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1605 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1606 | } else { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1607 | if (no_guarantee_of_dex_cache_entry) { |
| 1608 | // See if the method is also declared in this dex cache. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1609 | uint32_t dex_method_idx = method->FindDexMethodIndexInOtherDexFile( |
| 1610 | *target_method->dex_file, target_method->dex_method_index); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1611 | if (dex_method_idx != DexFile::kDexNoIndex) { |
| 1612 | target_method->dex_method_index = dex_method_idx; |
| 1613 | } else { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1614 | if (force_relocations && !use_dex_cache) { |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1615 | target_method->dex_method_index = method->GetDexMethodIndex(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1616 | target_method->dex_file = dex_cache->GetDexFile(); |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1617 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1618 | must_use_direct_pointers = true; |
| 1619 | } |
| 1620 | } |
| 1621 | } |
| 1622 | if (use_dex_cache) { |
| 1623 | if (must_use_direct_pointers) { |
| 1624 | // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct |
| 1625 | // pointers are required as the dex cache lacks an appropriate entry. |
| 1626 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1627 | } else { |
| 1628 | *type = sharp_type; |
| 1629 | } |
| 1630 | } else { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1631 | auto* image_space = heap->GetImageSpace(); |
| 1632 | bool method_in_image = false; |
| 1633 | if (image_space != nullptr) { |
| 1634 | const auto& method_section = image_space->GetImageHeader().GetMethodsSection(); |
| 1635 | method_in_image = method_section.Contains( |
| 1636 | reinterpret_cast<uint8_t*>(method) - image_space->Begin()); |
| 1637 | } |
Mathieu Chartier | 6ced409 | 2015-02-27 16:10:48 -0800 | [diff] [blame] | 1638 | if (method_in_image || compiling_boot || runtime->UseJit()) { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1639 | // 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] | 1640 | // In the case where we are the JIT, we can always use direct pointers since we know where |
| 1641 | // the method and its code are / will be. We don't sharpen to interpreter bridge since we |
| 1642 | // check IsQuickToInterpreterBridge above. |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1643 | CHECK(!method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1644 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1645 | *direct_method = force_relocations ? -1 : reinterpret_cast<uintptr_t>(method); |
| 1646 | *direct_code = force_relocations ? -1 : compiler_->GetEntryPointOf(method); |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1647 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1648 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1649 | } else if (!must_use_direct_pointers) { |
| 1650 | // Set the code and rely on the dex cache for the method. |
| 1651 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1652 | if (force_relocations) { |
| 1653 | *direct_code = -1; |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1654 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1655 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1656 | } else { |
| 1657 | *direct_code = compiler_->GetEntryPointOf(method); |
| 1658 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1659 | } else { |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1660 | // Direct pointers were required but none were available. |
| 1661 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1662 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1663 | } |
| 1664 | } |
| 1665 | |
| 1666 | bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1667 | bool update_stats, bool enable_devirtualization, |
| 1668 | InvokeType* invoke_type, MethodReference* target_method, |
| 1669 | int* vtable_idx, uintptr_t* direct_code, |
| 1670 | uintptr_t* direct_method) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1671 | InvokeType orig_invoke_type = *invoke_type; |
| 1672 | int stats_flags = 0; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1673 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1674 | // Try to resolve the method and compiling method's class. |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1675 | StackHandleScope<2> hs(soa.Self()); |
| 1676 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1677 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 1678 | soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1679 | uint32_t method_idx = target_method->dex_method_index; |
| 1680 | ArtMethod* resolved_method = ResolveMethod( |
| 1681 | soa, dex_cache, class_loader, mUnit, method_idx, orig_invoke_type); |
| 1682 | auto h_referrer_class = hs.NewHandle(resolved_method != nullptr ? |
| 1683 | ResolveCompilingMethodsClass(soa, dex_cache, class_loader, mUnit) : nullptr); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1684 | bool result = false; |
| 1685 | if (resolved_method != nullptr) { |
| 1686 | *vtable_idx = GetResolvedMethodVTableIndex(resolved_method, orig_invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1687 | |
Nicolas Geoffray | e53798a | 2014-12-01 10:31:54 +0000 | [diff] [blame] | 1688 | if (enable_devirtualization && mUnit->GetVerifiedMethod() != nullptr) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1689 | const MethodReference* devirt_target = mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); |
| 1690 | |
| 1691 | stats_flags = IsFastInvoke( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1692 | soa, dex_cache, class_loader, mUnit, h_referrer_class.Get(), resolved_method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1693 | invoke_type, target_method, devirt_target, direct_code, direct_method); |
| 1694 | result = stats_flags != 0; |
| 1695 | } else { |
| 1696 | // Devirtualization not enabled. Inline IsFastInvoke(), dropping the devirtualization parts. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1697 | if (UNLIKELY(h_referrer_class.Get() == nullptr) || |
| 1698 | UNLIKELY(!h_referrer_class->CanAccessResolvedMethod(resolved_method->GetDeclaringClass(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1699 | resolved_method, dex_cache.Get(), |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1700 | target_method->dex_method_index)) || |
| 1701 | *invoke_type == kSuper) { |
| 1702 | // Slow path. (Without devirtualization, all super calls go slow path as well.) |
| 1703 | } else { |
| 1704 | // Sharpening failed so generate a regular resolved method dispatch. |
| 1705 | stats_flags = kFlagMethodResolved; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1706 | GetCodeAndMethodForDirectCall( |
| 1707 | invoke_type, *invoke_type, false, h_referrer_class.Get(), resolved_method, &stats_flags, |
| 1708 | target_method, direct_code, direct_method); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1709 | result = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1710 | } |
| 1711 | } |
| 1712 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1713 | if (!result) { |
| 1714 | // Conservative defaults. |
| 1715 | *vtable_idx = -1; |
| 1716 | *direct_code = 0u; |
| 1717 | *direct_method = 0u; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1718 | } |
| 1719 | if (update_stats) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1720 | ProcessedInvoke(orig_invoke_type, stats_flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1721 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1722 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1723 | } |
| 1724 | |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1725 | const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, |
| 1726 | uint32_t method_idx) const { |
| 1727 | MethodReference ref(dex_file, method_idx); |
| 1728 | return verification_results_->GetVerifiedMethod(ref); |
| 1729 | } |
| 1730 | |
| 1731 | bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1732 | if (!compiler_options_->IsVerificationEnabled()) { |
| 1733 | // If we didn't verify, every cast has to be treated as non-safe. |
| 1734 | return false; |
| 1735 | } |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1736 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
| 1737 | bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1738 | if (result) { |
| 1739 | stats_->SafeCast(); |
| 1740 | } else { |
| 1741 | stats_->NotASafeCast(); |
| 1742 | } |
| 1743 | return result; |
| 1744 | } |
| 1745 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1746 | class CompilationVisitor { |
| 1747 | public: |
| 1748 | virtual ~CompilationVisitor() {} |
| 1749 | virtual void Visit(size_t index) = 0; |
| 1750 | }; |
| 1751 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1752 | class ParallelCompilationManager { |
| 1753 | public: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1754 | ParallelCompilationManager(ClassLinker* class_linker, |
| 1755 | jobject class_loader, |
| 1756 | CompilerDriver* compiler, |
| 1757 | const DexFile* dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1758 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1759 | ThreadPool* thread_pool) |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1760 | : index_(0), |
| 1761 | class_linker_(class_linker), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1762 | class_loader_(class_loader), |
| 1763 | compiler_(compiler), |
| 1764 | dex_file_(dex_file), |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1765 | dex_files_(dex_files), |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1766 | thread_pool_(thread_pool) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1767 | |
| 1768 | ClassLinker* GetClassLinker() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1769 | CHECK(class_linker_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1770 | return class_linker_; |
| 1771 | } |
| 1772 | |
| 1773 | jobject GetClassLoader() const { |
| 1774 | return class_loader_; |
| 1775 | } |
| 1776 | |
| 1777 | CompilerDriver* GetCompiler() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1778 | CHECK(compiler_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1779 | return compiler_; |
| 1780 | } |
| 1781 | |
| 1782 | const DexFile* GetDexFile() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1783 | CHECK(dex_file_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1784 | return dex_file_; |
| 1785 | } |
| 1786 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1787 | const std::vector<const DexFile*>& GetDexFiles() const { |
| 1788 | return dex_files_; |
| 1789 | } |
| 1790 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1791 | void ForAll(size_t begin, size_t end, CompilationVisitor* visitor, size_t work_units) |
| 1792 | REQUIRES(!*Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1793 | Thread* self = Thread::Current(); |
| 1794 | self->AssertNoPendingException(); |
| 1795 | CHECK_GT(work_units, 0U); |
| 1796 | |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1797 | index_.StoreRelaxed(begin); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1798 | for (size_t i = 0; i < work_units; ++i) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1799 | thread_pool_->AddTask(self, new ForAllClosure(this, end, visitor)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1800 | } |
| 1801 | thread_pool_->StartWorkers(self); |
| 1802 | |
| 1803 | // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker |
| 1804 | // thread destructor's called below perform join). |
| 1805 | CHECK_NE(self->GetState(), kRunnable); |
| 1806 | |
| 1807 | // Wait for all the worker threads to finish. |
| 1808 | thread_pool_->Wait(self, true, false); |
| 1809 | } |
| 1810 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1811 | size_t NextIndex() { |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1812 | return index_.FetchAndAddSequentiallyConsistent(1); |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1813 | } |
| 1814 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1815 | private: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1816 | class ForAllClosure : public Task { |
| 1817 | public: |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1818 | ForAllClosure(ParallelCompilationManager* manager, size_t end, CompilationVisitor* visitor) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1819 | : manager_(manager), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1820 | end_(end), |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1821 | visitor_(visitor) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1822 | |
| 1823 | virtual void Run(Thread* self) { |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1824 | while (true) { |
| 1825 | const size_t index = manager_->NextIndex(); |
| 1826 | if (UNLIKELY(index >= end_)) { |
| 1827 | break; |
| 1828 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1829 | visitor_->Visit(index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1830 | self->AssertNoPendingException(); |
| 1831 | } |
| 1832 | } |
| 1833 | |
| 1834 | virtual void Finalize() { |
| 1835 | delete this; |
| 1836 | } |
Brian Carlstrom | 0cd7ec2 | 2013-07-17 23:40:20 -0700 | [diff] [blame] | 1837 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1838 | private: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1839 | ParallelCompilationManager* const manager_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1840 | const size_t end_; |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1841 | CompilationVisitor* const visitor_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1842 | }; |
| 1843 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1844 | AtomicInteger index_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1845 | ClassLinker* const class_linker_; |
| 1846 | const jobject class_loader_; |
| 1847 | CompilerDriver* const compiler_; |
| 1848 | const DexFile* const dex_file_; |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1849 | const std::vector<const DexFile*>& dex_files_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1850 | ThreadPool* const thread_pool_; |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1851 | |
| 1852 | DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1853 | }; |
| 1854 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1855 | // A fast version of SkipClass above if the class pointer is available |
| 1856 | // that avoids the expensive FindInClassPath search. |
| 1857 | 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] | 1858 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1859 | DCHECK(klass != nullptr); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1860 | const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); |
| 1861 | if (&dex_file != &original_dex_file) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1862 | if (class_loader == nullptr) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1863 | LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " |
| 1864 | << dex_file.GetLocation() << " previously found in " |
| 1865 | << original_dex_file.GetLocation(); |
| 1866 | } |
| 1867 | return true; |
| 1868 | } |
| 1869 | return false; |
| 1870 | } |
| 1871 | |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1872 | static void CheckAndClearResolveException(Thread* self) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1873 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1874 | CHECK(self->IsExceptionPending()); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1875 | mirror::Throwable* exception = self->GetException(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1876 | std::string temp; |
| 1877 | const char* descriptor = exception->GetClass()->GetDescriptor(&temp); |
| 1878 | const char* expected_exceptions[] = { |
| 1879 | "Ljava/lang/IllegalAccessError;", |
| 1880 | "Ljava/lang/IncompatibleClassChangeError;", |
| 1881 | "Ljava/lang/InstantiationError;", |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1882 | "Ljava/lang/LinkageError;", |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1883 | "Ljava/lang/NoClassDefFoundError;", |
| 1884 | "Ljava/lang/NoSuchFieldError;", |
| 1885 | "Ljava/lang/NoSuchMethodError;" |
| 1886 | }; |
| 1887 | bool found = false; |
| 1888 | for (size_t i = 0; (found == false) && (i < arraysize(expected_exceptions)); ++i) { |
| 1889 | if (strcmp(descriptor, expected_exceptions[i]) == 0) { |
| 1890 | found = true; |
| 1891 | } |
| 1892 | } |
| 1893 | if (!found) { |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1894 | LOG(FATAL) << "Unexpected exception " << exception->Dump(); |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1895 | } |
| 1896 | self->ClearException(); |
| 1897 | } |
| 1898 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1899 | class ResolveClassFieldsAndMethodsVisitor : public CompilationVisitor { |
| 1900 | public: |
| 1901 | explicit ResolveClassFieldsAndMethodsVisitor(const ParallelCompilationManager* manager) |
| 1902 | : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1903 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1904 | void Visit(size_t class_def_index) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1905 | ATRACE_CALL(); |
| 1906 | Thread* const self = Thread::Current(); |
| 1907 | jobject jclass_loader = manager_->GetClassLoader(); |
| 1908 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 1909 | ClassLinker* class_linker = manager_->GetClassLinker(); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1910 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1911 | // If an instance field is final then we need to have a barrier on the return, static final |
| 1912 | // fields are assigned within the lock held for class initialization. Conservatively assume |
| 1913 | // constructor barriers are always required. |
| 1914 | bool requires_constructor_barrier = true; |
| 1915 | |
| 1916 | // Method and Field are the worst. We can't resolve without either |
| 1917 | // context from the code use (to disambiguate virtual vs direct |
| 1918 | // method and instance vs static field) or from class |
| 1919 | // definitions. While the compiler will resolve what it can as it |
| 1920 | // needs it, here we try to resolve fields and methods used in class |
| 1921 | // definitions, since many of them many never be referenced by |
| 1922 | // generated code. |
| 1923 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 1924 | ScopedObjectAccess soa(self); |
| 1925 | StackHandleScope<2> hs(soa.Self()); |
| 1926 | Handle<mirror::ClassLoader> class_loader( |
| 1927 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1928 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 1929 | soa.Self(), dex_file, false))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1930 | // Resolve the class. |
| 1931 | mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, |
| 1932 | class_loader); |
| 1933 | bool resolve_fields_and_methods; |
| 1934 | if (klass == nullptr) { |
| 1935 | // Class couldn't be resolved, for example, super-class is in a different dex file. Don't |
| 1936 | // attempt to resolve methods and fields when there is no declaring class. |
| 1937 | CheckAndClearResolveException(soa.Self()); |
| 1938 | resolve_fields_and_methods = false; |
| 1939 | } else { |
| 1940 | // We successfully resolved a class, should we skip it? |
| 1941 | if (SkipClass(jclass_loader, dex_file, klass)) { |
| 1942 | return; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1943 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1944 | // We want to resolve the methods and fields eagerly. |
| 1945 | resolve_fields_and_methods = true; |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1946 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1947 | // Note the class_data pointer advances through the headers, |
| 1948 | // static fields, instance fields, direct methods, and virtual |
| 1949 | // methods. |
| 1950 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 1951 | if (class_data == nullptr) { |
| 1952 | // Empty class such as a marker interface. |
| 1953 | requires_constructor_barrier = false; |
| 1954 | } else { |
| 1955 | ClassDataItemIterator it(dex_file, class_data); |
| 1956 | while (it.HasNextStaticField()) { |
| 1957 | if (resolve_fields_and_methods) { |
| 1958 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1959 | dex_cache, class_loader, true); |
| 1960 | if (field == nullptr) { |
| 1961 | CheckAndClearResolveException(soa.Self()); |
| 1962 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1963 | } |
| 1964 | it.Next(); |
| 1965 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1966 | // We require a constructor barrier if there are final instance fields. |
| 1967 | requires_constructor_barrier = false; |
| 1968 | while (it.HasNextInstanceField()) { |
| 1969 | if (it.MemberIsFinal()) { |
| 1970 | requires_constructor_barrier = true; |
| 1971 | } |
| 1972 | if (resolve_fields_and_methods) { |
| 1973 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1974 | dex_cache, class_loader, false); |
| 1975 | if (field == nullptr) { |
| 1976 | CheckAndClearResolveException(soa.Self()); |
| 1977 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1978 | } |
| 1979 | it.Next(); |
| 1980 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1981 | if (resolve_fields_and_methods) { |
| 1982 | while (it.HasNextDirectMethod()) { |
| 1983 | ArtMethod* method = class_linker->ResolveMethod( |
| 1984 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 1985 | it.GetMethodInvokeType(class_def)); |
| 1986 | if (method == nullptr) { |
| 1987 | CheckAndClearResolveException(soa.Self()); |
| 1988 | } |
| 1989 | it.Next(); |
| 1990 | } |
| 1991 | while (it.HasNextVirtualMethod()) { |
| 1992 | ArtMethod* method = class_linker->ResolveMethod( |
| 1993 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 1994 | it.GetMethodInvokeType(class_def)); |
| 1995 | if (method == nullptr) { |
| 1996 | CheckAndClearResolveException(soa.Self()); |
| 1997 | } |
| 1998 | it.Next(); |
| 1999 | } |
| 2000 | DCHECK(!it.HasNext()); |
| 2001 | } |
| 2002 | } |
| 2003 | if (requires_constructor_barrier) { |
| 2004 | manager_->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2005 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2006 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2007 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2008 | private: |
| 2009 | const ParallelCompilationManager* const manager_; |
| 2010 | }; |
| 2011 | |
| 2012 | class ResolveTypeVisitor : public CompilationVisitor { |
| 2013 | public: |
| 2014 | explicit ResolveTypeVisitor(const ParallelCompilationManager* manager) : manager_(manager) { |
| 2015 | } |
| 2016 | virtual void Visit(size_t type_idx) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2017 | // Class derived values are more complicated, they require the linker and loader. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2018 | ScopedObjectAccess soa(Thread::Current()); |
| 2019 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2020 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2021 | StackHandleScope<2> hs(soa.Self()); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2022 | Handle<mirror::ClassLoader> class_loader( |
| 2023 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(manager_->GetClassLoader()))); |
Mathieu Chartier | d57d454 | 2015-10-14 10:55:30 -0700 | [diff] [blame] | 2024 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->RegisterDexFile( |
| 2025 | dex_file, |
| 2026 | class_linker->GetOrCreateAllocatorForClassLoader(class_loader.Get())))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2027 | 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] | 2028 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2029 | if (klass == nullptr) { |
| 2030 | soa.Self()->AssertPendingException(); |
| 2031 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2032 | VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); |
| 2033 | if (exception->GetClass()->DescriptorEquals("Ljava/lang/OutOfMemoryError;")) { |
| 2034 | // There's little point continuing compilation if the heap is exhausted. |
| 2035 | LOG(FATAL) << "Out of memory during type resolution for compilation"; |
| 2036 | } |
| 2037 | soa.Self()->ClearException(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2038 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2039 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2040 | |
| 2041 | private: |
| 2042 | const ParallelCompilationManager* const manager_; |
| 2043 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2044 | |
| 2045 | void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2046 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2047 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2048 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2049 | |
| 2050 | // TODO: we could resolve strings here, although the string table is largely filled with class |
| 2051 | // and method names. |
| 2052 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2053 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2054 | thread_pool); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2055 | if (IsImage()) { |
| 2056 | // For images we resolve all types, such as array, whereas for applications just those with |
| 2057 | // classdefs are resolved by ResolveClassFieldsAndMethods. |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2058 | TimingLogger::ScopedTiming t("Resolve Types", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2059 | ResolveTypeVisitor visitor(&context); |
| 2060 | context.ForAll(0, dex_file.NumTypeIds(), &visitor, thread_count_); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2061 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2062 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2063 | TimingLogger::ScopedTiming t("Resolve MethodsAndFields", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2064 | ResolveClassFieldsAndMethodsVisitor visitor(&context); |
| 2065 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2066 | } |
| 2067 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2068 | void CompilerDriver::SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
| 2069 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2070 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2071 | CHECK(dex_file != nullptr); |
| 2072 | SetVerifiedDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
| 2073 | } |
| 2074 | } |
| 2075 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2076 | 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] | 2077 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2078 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2079 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2080 | VerifyDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2081 | } |
| 2082 | } |
| 2083 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2084 | class VerifyClassVisitor : public CompilationVisitor { |
| 2085 | public: |
| 2086 | explicit VerifyClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2087 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2088 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2089 | ATRACE_CALL(); |
| 2090 | ScopedObjectAccess soa(Thread::Current()); |
| 2091 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2092 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2093 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2094 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2095 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2096 | StackHandleScope<3> hs(soa.Self()); |
| 2097 | Handle<mirror::ClassLoader> class_loader( |
| 2098 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2099 | Handle<mirror::Class> klass( |
| 2100 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2101 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2102 | CHECK(soa.Self()->IsExceptionPending()); |
| 2103 | soa.Self()->ClearException(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2104 | |
| 2105 | /* |
| 2106 | * At compile time, we can still structurally verify the class even if FindClass fails. |
| 2107 | * This is to ensure the class is structurally sound for compilation. An unsound class |
| 2108 | * will be rejected by the verifier and later skipped during compilation in the compiler. |
| 2109 | */ |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 2110 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 2111 | soa.Self(), dex_file, false))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2112 | std::string error_msg; |
| 2113 | if (verifier::MethodVerifier::VerifyClass(soa.Self(), &dex_file, dex_cache, class_loader, |
| 2114 | &class_def, true, &error_msg) == |
| 2115 | verifier::MethodVerifier::kHardFailure) { |
| 2116 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) |
| 2117 | << " because: " << error_msg; |
| 2118 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2119 | } |
| 2120 | } else if (!SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2121 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()); |
| 2122 | class_linker->VerifyClass(soa.Self(), klass); |
| 2123 | |
| 2124 | if (klass->IsErroneous()) { |
| 2125 | // ClassLinker::VerifyClass throws, which isn't useful in the compiler. |
| 2126 | CHECK(soa.Self()->IsExceptionPending()); |
| 2127 | soa.Self()->ClearException(); |
| 2128 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2129 | } |
| 2130 | |
| 2131 | CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) |
| 2132 | << PrettyDescriptor(klass.Get()) << ": state=" << klass->GetStatus(); |
| 2133 | |
| 2134 | // It is *very* problematic if there are verification errors in the boot classpath. For example, |
| 2135 | // we rely on things working OK without verification when the decryption dialog is brought up. |
| 2136 | // So abort in a debug build if we find this violated. |
| 2137 | DCHECK(!manager_->GetCompiler()->IsImage() || klass->IsVerified()) << "Boot classpath class " |
| 2138 | << PrettyClass(klass.Get()) << " failed to fully verify."; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2139 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2140 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2141 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2142 | |
| 2143 | private: |
| 2144 | const ParallelCompilationManager* const manager_; |
| 2145 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2146 | |
| 2147 | void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2148 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2149 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2150 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2151 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2152 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2153 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2154 | VerifyClassVisitor visitor(&context); |
| 2155 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2156 | } |
| 2157 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2158 | class SetVerifiedClassVisitor : public CompilationVisitor { |
| 2159 | public: |
| 2160 | explicit SetVerifiedClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2161 | |
| 2162 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2163 | ATRACE_CALL(); |
| 2164 | ScopedObjectAccess soa(Thread::Current()); |
| 2165 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2166 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2167 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2168 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2169 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2170 | StackHandleScope<3> hs(soa.Self()); |
| 2171 | Handle<mirror::ClassLoader> class_loader( |
| 2172 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2173 | Handle<mirror::Class> klass( |
| 2174 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2175 | // Class might have failed resolution. Then don't set it to verified. |
| 2176 | if (klass.Get() != nullptr) { |
| 2177 | // Only do this if the class is resolved. If even resolution fails, quickening will go very, |
| 2178 | // very wrong. |
| 2179 | if (klass->IsResolved()) { |
| 2180 | if (klass->GetStatus() < mirror::Class::kStatusVerified) { |
| 2181 | ObjectLock<mirror::Class> lock(soa.Self(), klass); |
| 2182 | // Set class status to verified. |
| 2183 | mirror::Class::SetStatus(klass, mirror::Class::kStatusVerified, soa.Self()); |
| 2184 | // Mark methods as pre-verified. If we don't do this, the interpreter will run with |
| 2185 | // access checks. |
| 2186 | klass->SetPreverifiedFlagOnAllMethods( |
| 2187 | GetInstructionSetPointerSize(manager_->GetCompiler()->GetInstructionSet())); |
| 2188 | klass->SetPreverified(); |
| 2189 | } |
| 2190 | // Record the final class status if necessary. |
| 2191 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2192 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2193 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2194 | } else { |
| 2195 | Thread* self = soa.Self(); |
| 2196 | DCHECK(self->IsExceptionPending()); |
| 2197 | self->ClearException(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2198 | } |
| 2199 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2200 | |
| 2201 | private: |
| 2202 | const ParallelCompilationManager* const manager_; |
| 2203 | }; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2204 | |
| 2205 | void CompilerDriver::SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, |
| 2206 | const std::vector<const DexFile*>& dex_files, |
| 2207 | ThreadPool* thread_pool, TimingLogger* timings) { |
| 2208 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
| 2209 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2210 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2211 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2212 | SetVerifiedClassVisitor visitor(&context); |
| 2213 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2214 | } |
| 2215 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2216 | class InitializeClassVisitor : public CompilationVisitor { |
| 2217 | public: |
| 2218 | explicit InitializeClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2219 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2220 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2221 | ATRACE_CALL(); |
| 2222 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2223 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2224 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2225 | const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); |
| 2226 | const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 2227 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2228 | ScopedObjectAccess soa(Thread::Current()); |
| 2229 | StackHandleScope<3> hs(soa.Self()); |
| 2230 | Handle<mirror::ClassLoader> class_loader( |
| 2231 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2232 | Handle<mirror::Class> klass( |
| 2233 | hs.NewHandle(manager_->GetClassLinker()->FindClass(soa.Self(), descriptor, class_loader))); |
| 2234 | |
| 2235 | if (klass.Get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2236 | // Only try to initialize classes that were successfully verified. |
| 2237 | if (klass->IsVerified()) { |
| 2238 | // Attempt to initialize the class but bail if we either need to initialize the super-class |
| 2239 | // or static fields. |
| 2240 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, false); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2241 | if (!klass->IsInitialized()) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2242 | // We don't want non-trivial class initialization occurring on multiple threads due to |
| 2243 | // deadlock problems. For example, a parent class is initialized (holding its lock) that |
| 2244 | // refers to a sub-class in its static/class initializer causing it to try to acquire the |
| 2245 | // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) |
| 2246 | // after first initializing its parents, whose locks are acquired. This leads to a |
| 2247 | // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. |
| 2248 | // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather |
| 2249 | // than use a special Object for the purpose we use the Class of java.lang.Class. |
| 2250 | Handle<mirror::Class> h_klass(hs.NewHandle(klass->GetClass())); |
| 2251 | ObjectLock<mirror::Class> lock(soa.Self(), h_klass); |
| 2252 | // Attempt to initialize allowing initialization of parent classes but still not static |
| 2253 | // fields. |
| 2254 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, true); |
| 2255 | if (!klass->IsInitialized()) { |
| 2256 | // We need to initialize static fields, we only do this for image classes that aren't |
| 2257 | // marked with the $NoPreloadHolder (which implies this should not be initialized early). |
| 2258 | bool can_init_static_fields = manager_->GetCompiler()->IsImage() && |
| 2259 | manager_->GetCompiler()->IsImageClass(descriptor) && |
| 2260 | !StringPiece(descriptor).ends_with("$NoPreloadHolder;"); |
| 2261 | if (can_init_static_fields) { |
| 2262 | VLOG(compiler) << "Initializing: " << descriptor; |
| 2263 | // TODO multithreading support. We should ensure the current compilation thread has |
| 2264 | // exclusive access to the runtime and the transaction. To achieve this, we could use |
| 2265 | // a ReaderWriterMutex but we're holding the mutator lock so we fail mutex sanity |
| 2266 | // checks in Thread::AssertThreadSuspensionIsAllowable. |
| 2267 | Runtime* const runtime = Runtime::Current(); |
| 2268 | Transaction transaction; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2269 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2270 | // Run the class initializer in transaction mode. |
| 2271 | runtime->EnterTransactionMode(&transaction); |
| 2272 | const mirror::Class::Status old_status = klass->GetStatus(); |
| 2273 | bool success = manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, true, |
| 2274 | true); |
| 2275 | // TODO we detach transaction from runtime to indicate we quit the transactional |
| 2276 | // mode which prevents the GC from visiting objects modified during the transaction. |
| 2277 | // 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] | 2278 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2279 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Transaction end"); |
| 2280 | runtime->ExitTransactionMode(); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2281 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2282 | if (!success) { |
| 2283 | CHECK(soa.Self()->IsExceptionPending()); |
| 2284 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2285 | VLOG(compiler) << "Initialization of " << descriptor << " aborted because of " |
| 2286 | << exception->Dump(); |
| 2287 | std::ostream* file_log = manager_->GetCompiler()-> |
| 2288 | GetCompilerOptions().GetInitFailureOutput(); |
| 2289 | if (file_log != nullptr) { |
| 2290 | *file_log << descriptor << "\n"; |
| 2291 | *file_log << exception->Dump() << "\n"; |
| 2292 | } |
| 2293 | soa.Self()->ClearException(); |
| 2294 | transaction.Rollback(); |
| 2295 | CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored"; |
Andreas Gampe | dbfe254 | 2014-11-25 22:21:42 -0800 | [diff] [blame] | 2296 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2297 | } |
| 2298 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2299 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2300 | } |
| 2301 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2302 | // Record the final class status if necessary. |
| 2303 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2304 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2305 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2306 | // Clear any class not found or verification exceptions. |
| 2307 | soa.Self()->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2308 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2309 | |
| 2310 | private: |
| 2311 | const ParallelCompilationManager* const manager_; |
| 2312 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2313 | |
| 2314 | void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2315 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2316 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2317 | TimingLogger::ScopedTiming t("InitializeNoClinit", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2318 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2319 | ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, dex_files, |
| 2320 | thread_pool); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2321 | size_t thread_count; |
| 2322 | if (IsImage()) { |
| 2323 | // TODO: remove this when transactional mode supports multithreading. |
| 2324 | thread_count = 1U; |
| 2325 | } else { |
| 2326 | thread_count = thread_count_; |
| 2327 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2328 | InitializeClassVisitor visitor(&context); |
| 2329 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2330 | } |
| 2331 | |
| 2332 | void CompilerDriver::InitializeClasses(jobject class_loader, |
| 2333 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2334 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2335 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2336 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2337 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2338 | InitializeClasses(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2339 | } |
Mathieu Chartier | 093ef21 | 2014-08-11 13:52:12 -0700 | [diff] [blame] | 2340 | if (IsImage()) { |
| 2341 | // Prune garbage objects created during aborted transactions. |
| 2342 | Runtime::Current()->GetHeap()->CollectGarbage(true); |
| 2343 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2344 | } |
| 2345 | |
| 2346 | 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] | 2347 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2348 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2349 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2350 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2351 | CompileDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2352 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2353 | VLOG(compiler) << "Compile: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2354 | } |
| 2355 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2356 | class CompileClassVisitor : public CompilationVisitor { |
| 2357 | public: |
| 2358 | explicit CompileClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2359 | |
| 2360 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2361 | ATRACE_CALL(); |
| 2362 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2363 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2364 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2365 | jobject jclass_loader = manager_->GetClassLoader(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2366 | ClassReference ref(&dex_file, class_def_index); |
| 2367 | // Skip compiling classes with generic verifier failures since they will still fail at runtime |
| 2368 | if (manager_->GetCompiler()->verification_results_->IsClassRejected(ref)) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2369 | return; |
| 2370 | } |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2371 | // Use a scoped object access to perform to the quick SkipClass check. |
| 2372 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2373 | ScopedObjectAccess soa(Thread::Current()); |
| 2374 | StackHandleScope<3> hs(soa.Self()); |
| 2375 | Handle<mirror::ClassLoader> class_loader( |
| 2376 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2377 | Handle<mirror::Class> klass( |
| 2378 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2379 | Handle<mirror::DexCache> dex_cache; |
| 2380 | if (klass.Get() == nullptr) { |
| 2381 | soa.Self()->AssertPendingException(); |
| 2382 | soa.Self()->ClearException(); |
| 2383 | dex_cache = hs.NewHandle(class_linker->FindDexCache(soa.Self(), dex_file)); |
| 2384 | } else if (SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2385 | return; |
| 2386 | } else { |
| 2387 | dex_cache = hs.NewHandle(klass->GetDexCache()); |
| 2388 | } |
| 2389 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2390 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 2391 | if (class_data == nullptr) { |
| 2392 | // empty class, probably a marker interface |
| 2393 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2394 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2395 | |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2396 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 2397 | ScopedThreadSuspension sts(soa.Self(), kNative); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2398 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2399 | CompilerDriver* const driver = manager_->GetCompiler(); |
| 2400 | |
| 2401 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2402 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2403 | GetDexToDexCompilationLevel(soa.Self(), *driver, jclass_loader, dex_file, class_def); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2404 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2405 | ClassDataItemIterator it(dex_file, class_data); |
| 2406 | // Skip fields |
| 2407 | while (it.HasNextStaticField()) { |
| 2408 | it.Next(); |
| 2409 | } |
| 2410 | while (it.HasNextInstanceField()) { |
| 2411 | it.Next(); |
| 2412 | } |
| 2413 | |
| 2414 | bool compilation_enabled = driver->IsClassToCompile( |
| 2415 | dex_file.StringByTypeIdx(class_def.class_idx_)); |
| 2416 | |
| 2417 | // Compile direct methods |
| 2418 | int64_t previous_direct_method_idx = -1; |
| 2419 | while (it.HasNextDirectMethod()) { |
| 2420 | uint32_t method_idx = it.GetMemberIndex(); |
| 2421 | if (method_idx == previous_direct_method_idx) { |
| 2422 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2423 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2424 | it.Next(); |
| 2425 | continue; |
| 2426 | } |
| 2427 | previous_direct_method_idx = method_idx; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2428 | CompileMethod(soa.Self(), driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2429 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2430 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2431 | compilation_enabled, dex_cache); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2432 | it.Next(); |
| 2433 | } |
| 2434 | // Compile virtual methods |
| 2435 | int64_t previous_virtual_method_idx = -1; |
| 2436 | while (it.HasNextVirtualMethod()) { |
| 2437 | uint32_t method_idx = it.GetMemberIndex(); |
| 2438 | if (method_idx == previous_virtual_method_idx) { |
| 2439 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2440 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2441 | it.Next(); |
| 2442 | continue; |
| 2443 | } |
| 2444 | previous_virtual_method_idx = method_idx; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2445 | CompileMethod(soa.Self(), driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2446 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2447 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2448 | compilation_enabled, dex_cache); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2449 | it.Next(); |
| 2450 | } |
| 2451 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2452 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2453 | |
| 2454 | private: |
| 2455 | const ParallelCompilationManager* const manager_; |
| 2456 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2457 | |
| 2458 | void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2459 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2460 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2461 | TimingLogger::ScopedTiming t("Compile Dex File", timings); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2462 | ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2463 | &dex_file, dex_files, thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2464 | CompileClassVisitor visitor(&context); |
| 2465 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2466 | } |
| 2467 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2468 | void CompilerDriver::AddCompiledMethod(const MethodReference& method_ref, |
| 2469 | CompiledMethod* const compiled_method, |
| 2470 | size_t non_relative_linker_patch_count) { |
| 2471 | DCHECK(GetCompiledMethod(method_ref) == nullptr) |
| 2472 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
| 2473 | { |
| 2474 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2475 | compiled_methods_.Put(method_ref, compiled_method); |
| 2476 | non_relative_linker_patch_count_ += non_relative_linker_patch_count; |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2477 | } |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2478 | DCHECK(GetCompiledMethod(method_ref) != nullptr) |
| 2479 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2480 | } |
| 2481 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2482 | void CompilerDriver::RemoveCompiledMethod(const MethodReference& method_ref) { |
| 2483 | CompiledMethod* compiled_method = nullptr; |
| 2484 | { |
| 2485 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2486 | auto it = compiled_methods_.find(method_ref); |
| 2487 | if (it != compiled_methods_.end()) { |
| 2488 | compiled_method = it->second; |
| 2489 | compiled_methods_.erase(it); |
| 2490 | } |
| 2491 | } |
| 2492 | if (compiled_method != nullptr) { |
| 2493 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, compiled_method); |
| 2494 | } |
| 2495 | } |
| 2496 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2497 | CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { |
| 2498 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2499 | ClassTable::const_iterator it = compiled_classes_.find(ref); |
| 2500 | if (it == compiled_classes_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2501 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2502 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2503 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2504 | return it->second; |
| 2505 | } |
| 2506 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2507 | void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { |
| 2508 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2509 | auto it = compiled_classes_.find(ref); |
| 2510 | if (it == compiled_classes_.end() || it->second->GetStatus() != status) { |
| 2511 | // An entry doesn't exist or the status is lower than the new status. |
| 2512 | if (it != compiled_classes_.end()) { |
| 2513 | CHECK_GT(status, it->second->GetStatus()); |
| 2514 | delete it->second; |
| 2515 | } |
| 2516 | switch (status) { |
| 2517 | case mirror::Class::kStatusNotReady: |
| 2518 | case mirror::Class::kStatusError: |
| 2519 | case mirror::Class::kStatusRetryVerificationAtRuntime: |
| 2520 | case mirror::Class::kStatusVerified: |
| 2521 | case mirror::Class::kStatusInitialized: |
| 2522 | break; // Expected states. |
| 2523 | default: |
| 2524 | LOG(FATAL) << "Unexpected class status for class " |
| 2525 | << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) |
| 2526 | << " of " << status; |
| 2527 | } |
| 2528 | CompiledClass* compiled_class = new CompiledClass(status); |
| 2529 | compiled_classes_.Overwrite(ref, compiled_class); |
| 2530 | } |
| 2531 | } |
| 2532 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2533 | CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { |
| 2534 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2535 | MethodTable::const_iterator it = compiled_methods_.find(ref); |
| 2536 | if (it == compiled_methods_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2537 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2538 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2539 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2540 | return it->second; |
| 2541 | } |
| 2542 | |
Calin Juravle | f1c6d9e | 2015-04-13 18:42:21 +0100 | [diff] [blame] | 2543 | bool CompilerDriver::IsMethodVerifiedWithoutFailures(uint32_t method_idx, |
| 2544 | uint16_t class_def_idx, |
| 2545 | const DexFile& dex_file) const { |
| 2546 | const VerifiedMethod* verified_method = GetVerifiedMethod(&dex_file, method_idx); |
| 2547 | if (verified_method != nullptr) { |
| 2548 | return !verified_method->HasVerificationFailures(); |
| 2549 | } |
| 2550 | |
| 2551 | // If we can't find verification metadata, check if this is a system class (we trust that system |
| 2552 | // classes have their methods verified). If it's not, be conservative and assume the method |
| 2553 | // has not been verified successfully. |
| 2554 | |
| 2555 | // TODO: When compiling the boot image it should be safe to assume that everything is verified, |
| 2556 | // even if methods are not found in the verification cache. |
| 2557 | const char* descriptor = dex_file.GetClassDescriptor(dex_file.GetClassDef(class_def_idx)); |
| 2558 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2559 | Thread* self = Thread::Current(); |
| 2560 | ScopedObjectAccess soa(self); |
| 2561 | bool is_system_class = class_linker->FindSystemClass(self, descriptor) != nullptr; |
| 2562 | if (!is_system_class) { |
| 2563 | self->ClearException(); |
| 2564 | } |
| 2565 | return is_system_class; |
| 2566 | } |
| 2567 | |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2568 | size_t CompilerDriver::GetNonRelativeLinkerPatchCount() const { |
| 2569 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2570 | return non_relative_linker_patch_count_; |
| 2571 | } |
| 2572 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2573 | void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2574 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2575 | WriterMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2576 | freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); |
| 2577 | } |
| 2578 | |
| 2579 | bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Calin Juravle | 27df758 | 2015-04-17 19:12:31 +0100 | [diff] [blame] | 2580 | uint16_t class_def_index) const { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2581 | ReaderMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2582 | return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; |
| 2583 | } |
| 2584 | |
| 2585 | bool CompilerDriver::WriteElf(const std::string& android_root, |
| 2586 | bool is_host, |
| 2587 | const std::vector<const art::DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2588 | OatWriter* oat_writer, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2589 | art::File* file) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2590 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | 3773cd0 | 2015-04-10 09:28:22 -0700 | [diff] [blame] | 2591 | if (kProduce64BitELFFiles && Is64BitInstructionSet(GetInstructionSet())) { |
| 2592 | return art::ElfWriterQuick64::Create(file, oat_writer, dex_files, android_root, is_host, *this); |
| 2593 | } else { |
| 2594 | return art::ElfWriterQuick32::Create(file, oat_writer, dex_files, android_root, is_host, *this); |
| 2595 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2596 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2597 | |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2598 | bool CompilerDriver::SkipCompilation(const std::string& method_name) { |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 2599 | if (!profile_present_) { |
Dave Allison | 644789f | 2014-04-10 13:06:10 -0700 | [diff] [blame] | 2600 | return false; |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2601 | } |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 2602 | // First find the method in the profile file. |
| 2603 | ProfileFile::ProfileData data; |
| 2604 | if (!profile_file_.GetProfileData(&data, method_name)) { |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2605 | // Not in profile, no information can be determined. |
Calin Juravle | 08f7a2d | 2014-06-23 15:22:29 +0100 | [diff] [blame] | 2606 | if (kIsDebugBuild) { |
| 2607 | VLOG(compiler) << "not compiling " << method_name << " because it's not in the profile"; |
| 2608 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2609 | return true; |
| 2610 | } |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 2611 | |
| 2612 | // 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] | 2613 | // 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] | 2614 | // falls inside a bucket. |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 2615 | bool compile = data.GetTopKUsedPercentage() - data.GetUsedPercent() |
| 2616 | <= compiler_options_->GetTopKProfileThreshold(); |
Calin Juravle | 08f7a2d | 2014-06-23 15:22:29 +0100 | [diff] [blame] | 2617 | if (kIsDebugBuild) { |
| 2618 | if (compile) { |
| 2619 | LOG(INFO) << "compiling method " << method_name << " because its usage is part of top " |
| 2620 | << data.GetTopKUsedPercentage() << "% with a percent of " << data.GetUsedPercent() << "%" |
| 2621 | << " (topKThreshold=" << compiler_options_->GetTopKProfileThreshold() << ")"; |
| 2622 | } else { |
| 2623 | VLOG(compiler) << "not compiling method " << method_name |
| 2624 | << " because it's not part of leading " << compiler_options_->GetTopKProfileThreshold() |
| 2625 | << "% samples)"; |
| 2626 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2627 | } |
| 2628 | return !compile; |
| 2629 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2630 | |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2631 | std::string CompilerDriver::GetMemoryUsageString(bool extended) const { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2632 | std::ostringstream oss; |
Mathieu Chartier | 9b34b24 | 2015-03-09 11:30:17 -0700 | [diff] [blame] | 2633 | Runtime* const runtime = Runtime::Current(); |
| 2634 | const ArenaPool* arena_pool = runtime->GetArenaPool(); |
| 2635 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2636 | oss << "arena alloc=" << PrettySize(arena_pool->GetBytesAllocated()); |
| 2637 | oss << " java alloc=" << PrettySize(heap->GetBytesAllocated()); |
Elliott Hughes | 7bf5a26 | 2015-04-02 20:55:07 -0700 | [diff] [blame] | 2638 | #if defined(__BIONIC__) || defined(__GLIBC__) |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2639 | struct mallinfo info = mallinfo(); |
| 2640 | const size_t allocated_space = static_cast<size_t>(info.uordblks); |
| 2641 | const size_t free_space = static_cast<size_t>(info.fordblks); |
| 2642 | oss << " native alloc=" << PrettySize(allocated_space) << " free=" |
| 2643 | << PrettySize(free_space); |
| 2644 | #endif |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 2645 | if (swap_space_.get() != nullptr) { |
| 2646 | oss << " swap=" << PrettySize(swap_space_->GetSize()); |
| 2647 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2648 | if (extended) { |
| 2649 | oss << "\nCode dedupe: " << dedupe_code_.DumpStats(); |
| 2650 | oss << "\nMapping table dedupe: " << dedupe_mapping_table_.DumpStats(); |
| 2651 | oss << "\nVmap table dedupe: " << dedupe_vmap_table_.DumpStats(); |
| 2652 | oss << "\nGC map dedupe: " << dedupe_gc_map_.DumpStats(); |
| 2653 | oss << "\nCFI info dedupe: " << dedupe_cfi_info_.DumpStats(); |
| 2654 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2655 | return oss.str(); |
| 2656 | } |
| 2657 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 2658 | bool CompilerDriver::IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file) { |
| 2659 | const char* type = dex_file->GetTypeDescriptor(dex_file->GetTypeId(type_index)); |
| 2660 | return strcmp(type, "Ljava/lang/String;") == 0; |
| 2661 | } |
| 2662 | |
| 2663 | bool CompilerDriver::IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset) { |
| 2664 | DexFileMethodInliner* inliner = GetMethodInlinerMap()->GetMethodInliner(dex_file); |
| 2665 | size_t pointer_size = InstructionSetPointerSize(GetInstructionSet()); |
| 2666 | *offset = inliner->GetOffsetForStringInit(method_index, pointer_size); |
| 2667 | return inliner->IsStringInitMethodIndex(method_index); |
| 2668 | } |
| 2669 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2670 | } // namespace art |