| File: | jdk/src/hotspot/share/classfile/verifier.cpp |
| Warning: | line 1811, column 11 Value stored to 'no_control_flow' is never read |
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| 1 | /* |
| 2 | * Copyright (c) 1998, 2021, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | * or visit www.oracle.com if you need additional information or have any |
| 21 | * questions. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include "precompiled.hpp" |
| 26 | #include "jvm.h" |
| 27 | #include "classfile/classFileStream.hpp" |
| 28 | #include "classfile/classLoader.hpp" |
| 29 | #include "classfile/javaClasses.hpp" |
| 30 | #include "classfile/stackMapTable.hpp" |
| 31 | #include "classfile/stackMapFrame.hpp" |
| 32 | #include "classfile/stackMapTableFormat.hpp" |
| 33 | #include "classfile/symbolTable.hpp" |
| 34 | #include "classfile/systemDictionary.hpp" |
| 35 | #include "classfile/verifier.hpp" |
| 36 | #include "classfile/vmClasses.hpp" |
| 37 | #include "classfile/vmSymbols.hpp" |
| 38 | #include "interpreter/bytecodes.hpp" |
| 39 | #include "interpreter/bytecodeStream.hpp" |
| 40 | #include "logging/log.hpp" |
| 41 | #include "logging/logStream.hpp" |
| 42 | #include "memory/oopFactory.hpp" |
| 43 | #include "memory/resourceArea.hpp" |
| 44 | #include "memory/universe.hpp" |
| 45 | #include "oops/constantPool.inline.hpp" |
| 46 | #include "oops/instanceKlass.inline.hpp" |
| 47 | #include "oops/klass.inline.hpp" |
| 48 | #include "oops/oop.inline.hpp" |
| 49 | #include "oops/typeArrayOop.hpp" |
| 50 | #include "runtime/arguments.hpp" |
| 51 | #include "runtime/fieldDescriptor.hpp" |
| 52 | #include "runtime/handles.inline.hpp" |
| 53 | #include "runtime/interfaceSupport.inline.hpp" |
| 54 | #include "runtime/javaCalls.hpp" |
| 55 | #include "runtime/jniHandles.inline.hpp" |
| 56 | #include "runtime/os.hpp" |
| 57 | #include "runtime/safepointVerifiers.hpp" |
| 58 | #include "runtime/thread.hpp" |
| 59 | #include "services/threadService.hpp" |
| 60 | #include "utilities/align.hpp" |
| 61 | #include "utilities/bytes.hpp" |
| 62 | |
| 63 | #define NOFAILOVER_MAJOR_VERSION51 51 |
| 64 | #define NONZERO_PADDING_BYTES_IN_SWITCH_MAJOR_VERSION51 51 |
| 65 | #define STATIC_METHOD_IN_INTERFACE_MAJOR_VERSION52 52 |
| 66 | #define MAX_ARRAY_DIMENSIONS255 255 |
| 67 | |
| 68 | // Access to external entry for VerifyClassForMajorVersion - old byte code verifier |
| 69 | |
| 70 | extern "C" { |
| 71 | typedef jboolean (*verify_byte_codes_fn_t)(JNIEnv *, jclass, char *, jint, jint); |
| 72 | } |
| 73 | |
| 74 | static verify_byte_codes_fn_t volatile _verify_byte_codes_fn = NULL__null; |
| 75 | |
| 76 | static verify_byte_codes_fn_t verify_byte_codes_fn() { |
| 77 | |
| 78 | if (_verify_byte_codes_fn != NULL__null) |
| 79 | return _verify_byte_codes_fn; |
| 80 | |
| 81 | MutexLocker locker(Verify_lock); |
| 82 | |
| 83 | if (_verify_byte_codes_fn != NULL__null) |
| 84 | return _verify_byte_codes_fn; |
| 85 | |
| 86 | // Load verify dll |
| 87 | char buffer[JVM_MAXPATHLEN4096 + 1]; |
| 88 | char ebuf[1024]; |
| 89 | if (!os::dll_locate_lib(buffer, sizeof(buffer), Arguments::get_dll_dir(), "verify")) |
| 90 | return NULL__null; // Caller will throw VerifyError |
| 91 | |
| 92 | void *lib_handle = os::dll_load(buffer, ebuf, sizeof(ebuf)); |
| 93 | if (lib_handle == NULL__null) |
| 94 | return NULL__null; // Caller will throw VerifyError |
| 95 | |
| 96 | void *fn = os::dll_lookup(lib_handle, "VerifyClassForMajorVersion"); |
| 97 | if (fn == NULL__null) |
| 98 | return NULL__null; // Caller will throw VerifyError |
| 99 | |
| 100 | return _verify_byte_codes_fn = CAST_TO_FN_PTR(verify_byte_codes_fn_t, fn)(reinterpret_cast<verify_byte_codes_fn_t>(fn)); |
| 101 | } |
| 102 | |
| 103 | |
| 104 | // Methods in Verifier |
| 105 | |
| 106 | bool Verifier::should_verify_for(oop class_loader, bool should_verify_class) { |
| 107 | return (class_loader == NULL__null || !should_verify_class) ? |
| 108 | BytecodeVerificationLocal : BytecodeVerificationRemote; |
| 109 | } |
| 110 | |
| 111 | bool Verifier::relax_access_for(oop loader) { |
| 112 | bool trusted = java_lang_ClassLoader::is_trusted_loader(loader); |
| 113 | bool need_verify = |
| 114 | // verifyAll |
| 115 | (BytecodeVerificationLocal && BytecodeVerificationRemote) || |
| 116 | // verifyRemote |
| 117 | (!BytecodeVerificationLocal && BytecodeVerificationRemote && !trusted); |
| 118 | return !need_verify; |
| 119 | } |
| 120 | |
| 121 | void Verifier::trace_class_resolution(Klass* resolve_class, InstanceKlass* verify_class) { |
| 122 | assert(verify_class != NULL, "Unexpected null verify_class")do { if (!(verify_class != __null)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 122, "assert(" "verify_class != __null" ") failed", "Unexpected null verify_class" ); ::breakpoint(); } } while (0); |
| 123 | ResourceMark rm; |
| 124 | Symbol* s = verify_class->source_file_name(); |
| 125 | const char* source_file = (s != NULL__null ? s->as_C_string() : NULL__null); |
| 126 | const char* verify = verify_class->external_name(); |
| 127 | const char* resolve = resolve_class->external_name(); |
| 128 | // print in a single call to reduce interleaving between threads |
| 129 | if (source_file != NULL__null) { |
| 130 | log_debug(class, resolve)(!(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag:: __NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG )>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag ::_class), (LogTag::_resolve), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Debug>("%s %s %s (verification)", verify, resolve, source_file); |
| 131 | } else { |
| 132 | log_debug(class, resolve)(!(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag:: __NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG )>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag ::_class), (LogTag::_resolve), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Debug>("%s %s (verification)", verify, resolve); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | // Prints the end-verification message to the appropriate output. |
| 137 | void Verifier::log_end_verification(outputStream* st, const char* klassName, Symbol* exception_name, oop pending_exception) { |
| 138 | if (pending_exception != NULL__null) { |
| 139 | st->print("Verification for %s has", klassName); |
| 140 | oop message = java_lang_Throwable::message(pending_exception); |
| 141 | if (message != NULL__null) { |
| 142 | char* ex_msg = java_lang_String::as_utf8_string(message); |
| 143 | st->print_cr(" exception pending '%s %s'", |
| 144 | pending_exception->klass()->external_name(), ex_msg); |
| 145 | } else { |
| 146 | st->print_cr(" exception pending %s ", |
| 147 | pending_exception->klass()->external_name()); |
| 148 | } |
| 149 | } else if (exception_name != NULL__null) { |
| 150 | st->print_cr("Verification for %s failed", klassName); |
| 151 | } |
| 152 | st->print_cr("End class verification for: %s", klassName); |
| 153 | } |
| 154 | |
| 155 | bool Verifier::verify(InstanceKlass* klass, bool should_verify_class, TRAPSJavaThread* __the_thread__) { |
| 156 | HandleMark hm(THREAD__the_thread__); |
| 157 | ResourceMark rm(THREAD__the_thread__); |
| 158 | |
| 159 | // Eagerly allocate the identity hash code for a klass. This is a fallout |
| 160 | // from 6320749 and 8059924: hash code generator is not supposed to be called |
| 161 | // during the safepoint, but it allows to sneak the hashcode in during |
| 162 | // verification. Without this eager hashcode generation, we may end up |
| 163 | // installing the hashcode during some other operation, which may be at |
| 164 | // safepoint -- blowing up the checks. It was previously done as the side |
| 165 | // effect (sic!) for external_name(), but instead of doing that, we opt to |
| 166 | // explicitly push the hashcode in here. This is signify the following block |
| 167 | // is IMPORTANT: |
| 168 | if (klass->java_mirror() != NULL__null) { |
| 169 | klass->java_mirror()->identity_hash(); |
| 170 | } |
| 171 | |
| 172 | if (!is_eligible_for_verification(klass, should_verify_class)) { |
| 173 | return true; |
| 174 | } |
| 175 | |
| 176 | // Timer includes any side effects of class verification (resolution, |
| 177 | // etc), but not recursive calls to Verifier::verify(). |
| 178 | JavaThread* jt = THREAD__the_thread__; |
| 179 | PerfClassTraceTime timer(ClassLoader::perf_class_verify_time(), |
| 180 | ClassLoader::perf_class_verify_selftime(), |
| 181 | ClassLoader::perf_classes_verified(), |
| 182 | jt->get_thread_stat()->perf_recursion_counts_addr(), |
| 183 | jt->get_thread_stat()->perf_timers_addr(), |
| 184 | PerfClassTraceTime::CLASS_VERIFY); |
| 185 | |
| 186 | // If the class should be verified, first see if we can use the split |
| 187 | // verifier. If not, or if verification fails and can failover, then |
| 188 | // call the inference verifier. |
| 189 | Symbol* exception_name = NULL__null; |
| 190 | const size_t message_buffer_len = klass->name()->utf8_length() + 1024; |
| 191 | char* message_buffer = NULL__null; |
| 192 | char* exception_message = NULL__null; |
| 193 | |
| 194 | log_info(class, init)(!(LogImpl<(LogTag::_class), (LogTag::_init), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_class), (LogTag::_init), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("Start class verification for: %s", klass->external_name()); |
| 195 | if (klass->major_version() >= STACKMAP_ATTRIBUTE_MAJOR_VERSION) { |
| 196 | ClassVerifier split_verifier(jt, klass); |
| 197 | // We don't use CHECK here, or on inference_verify below, so that we can log any exception. |
| 198 | split_verifier.verify_class(THREAD__the_thread__); |
| 199 | exception_name = split_verifier.result(); |
| 200 | |
| 201 | // If DumpSharedSpaces is set then don't fall back to the old verifier on |
| 202 | // verification failure. If a class fails verification with the split verifier, |
| 203 | // it might fail the CDS runtime verifier constraint check. In that case, we |
| 204 | // don't want to share the class. We only archive classes that pass the split |
| 205 | // verifier. |
| 206 | bool can_failover = !DumpSharedSpaces && |
| 207 | klass->major_version() < NOFAILOVER_MAJOR_VERSION51; |
| 208 | |
| 209 | if (can_failover && !HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception()) && // Split verifier doesn't set PENDING_EXCEPTION for failure |
| 210 | (exception_name == vmSymbols::java_lang_VerifyError() || |
| 211 | exception_name == vmSymbols::java_lang_ClassFormatError())) { |
| 212 | log_info(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Info>("Fail over class verification to old verifier for: %s", klass->external_name()); |
| 213 | log_info(class, init)(!(LogImpl<(LogTag::_class), (LogTag::_init), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_class), (LogTag::_init), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("Fail over class verification to old verifier for: %s", klass->external_name()); |
| 214 | message_buffer = NEW_RESOURCE_ARRAY(char, message_buffer_len)(char*) resource_allocate_bytes((message_buffer_len) * sizeof (char)); |
| 215 | exception_message = message_buffer; |
| 216 | exception_name = inference_verify( |
| 217 | klass, message_buffer, message_buffer_len, THREAD__the_thread__); |
| 218 | } |
| 219 | if (exception_name != NULL__null) { |
| 220 | exception_message = split_verifier.exception_message(); |
| 221 | } |
| 222 | } else { |
| 223 | message_buffer = NEW_RESOURCE_ARRAY(char, message_buffer_len)(char*) resource_allocate_bytes((message_buffer_len) * sizeof (char)); |
| 224 | exception_message = message_buffer; |
| 225 | exception_name = inference_verify( |
| 226 | klass, message_buffer, message_buffer_len, THREAD__the_thread__); |
| 227 | } |
| 228 | |
| 229 | LogTarget(Info, class, init)LogTargetImpl<LogLevel::Info, (LogTag::_class), (LogTag::_init ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) , (LogTag::__NO_TAG)> lt1; |
| 230 | if (lt1.is_enabled()) { |
| 231 | LogStream ls(lt1); |
| 232 | log_end_verification(&ls, klass->external_name(), exception_name, PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->pending_exception())); |
| 233 | } |
| 234 | LogTarget(Info, verification)LogTargetImpl<LogLevel::Info, (LogTag::_verification), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG), (LogTag::__NO_TAG)> lt2; |
| 235 | if (lt2.is_enabled()) { |
| 236 | LogStream ls(lt2); |
| 237 | log_end_verification(&ls, klass->external_name(), exception_name, PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->pending_exception())); |
| 238 | } |
| 239 | |
| 240 | if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) { |
| 241 | return false; // use the existing exception |
| 242 | } else if (exception_name == NULL__null) { |
| 243 | return true; // verification succeeded |
| 244 | } else { // VerifyError or ClassFormatError to be created and thrown |
| 245 | Klass* kls = |
| 246 | SystemDictionary::resolve_or_fail(exception_name, true, CHECK_false__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return false; (void)(0); |
| 247 | if (log_is_enabled(Debug, class, resolve)(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Debug))) { |
| 248 | Verifier::trace_class_resolution(kls, klass); |
| 249 | } |
| 250 | |
| 251 | while (kls != NULL__null) { |
| 252 | if (kls == klass) { |
| 253 | // If the class being verified is the exception we're creating |
| 254 | // or one of it's superclasses, we're in trouble and are going |
| 255 | // to infinitely recurse when we try to initialize the exception. |
| 256 | // So bail out here by throwing the preallocated VM error. |
| 257 | THROW_OOP_(Universe::virtual_machine_error_instance(), false){ Exceptions::_throw_oop(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 257, Universe::virtual_machine_error_instance()); return false ; }; |
| 258 | } |
| 259 | kls = kls->super(); |
| 260 | } |
| 261 | if (message_buffer != NULL__null) { |
| 262 | message_buffer[message_buffer_len - 1] = '\0'; // just to be sure |
| 263 | } |
| 264 | assert(exception_message != NULL, "")do { if (!(exception_message != __null)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 264, "assert(" "exception_message != __null" ") failed", "" ); ::breakpoint(); } } while (0); |
| 265 | THROW_MSG_(exception_name, exception_message, false){ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 265, exception_name, exception_message); return false; }; |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | bool Verifier::is_eligible_for_verification(InstanceKlass* klass, bool should_verify_class) { |
| 270 | Symbol* name = klass->name(); |
| 271 | Klass* refl_magic_klass = vmClasses::reflect_MagicAccessorImpl_klass(); |
| 272 | |
| 273 | bool is_reflect = refl_magic_klass != NULL__null && klass->is_subtype_of(refl_magic_klass); |
| 274 | |
| 275 | return (should_verify_for(klass->class_loader(), should_verify_class) && |
| 276 | // return if the class is a bootstrapping class |
| 277 | // or defineClass specified not to verify by default (flags override passed arg) |
| 278 | // We need to skip the following four for bootstraping |
| 279 | name != vmSymbols::java_lang_Object() && |
| 280 | name != vmSymbols::java_lang_Class() && |
| 281 | name != vmSymbols::java_lang_String() && |
| 282 | name != vmSymbols::java_lang_Throwable() && |
| 283 | |
| 284 | // Can not verify the bytecodes for shared classes because they have |
| 285 | // already been rewritten to contain constant pool cache indices, |
| 286 | // which the verifier can't understand. |
| 287 | // Shared classes shouldn't have stackmaps either. |
| 288 | // However, bytecodes for shared old classes can be verified because |
| 289 | // they have not been rewritten. |
| 290 | !(klass->is_shared() && klass->is_rewritten()) && |
| 291 | |
| 292 | // As of the fix for 4486457 we disable verification for all of the |
| 293 | // dynamically-generated bytecodes associated with the 1.4 |
| 294 | // reflection implementation, not just those associated with |
| 295 | // jdk/internal/reflect/SerializationConstructorAccessor. |
| 296 | // NOTE: this is called too early in the bootstrapping process to be |
| 297 | // guarded by Universe::is_gte_jdk14x_version(). |
| 298 | // Also for lambda generated code, gte jdk8 |
| 299 | (!is_reflect)); |
| 300 | } |
| 301 | |
| 302 | Symbol* Verifier::inference_verify( |
| 303 | InstanceKlass* klass, char* message, size_t message_len, TRAPSJavaThread* __the_thread__) { |
| 304 | JavaThread* thread = THREAD__the_thread__; |
| 305 | |
| 306 | verify_byte_codes_fn_t verify_func = verify_byte_codes_fn(); |
| 307 | |
| 308 | if (verify_func == NULL__null) { |
| 309 | jio_snprintf(message, message_len, "Could not link verifier"); |
| 310 | return vmSymbols::java_lang_VerifyError(); |
| 311 | } |
| 312 | |
| 313 | ResourceMark rm(thread); |
| 314 | log_info(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Info>("Verifying class %s with old format", klass->external_name()); |
| 315 | |
| 316 | jclass cls = (jclass) JNIHandles::make_local(thread, klass->java_mirror()); |
| 317 | jint result; |
| 318 | |
| 319 | { |
| 320 | HandleMark hm(thread); |
| 321 | ThreadToNativeFromVM ttn(thread); |
| 322 | // ThreadToNativeFromVM takes care of changing thread_state, so safepoint |
| 323 | // code knows that we have left the VM |
| 324 | JNIEnv *env = thread->jni_environment(); |
| 325 | result = (*verify_func)(env, cls, message, (int)message_len, klass->major_version()); |
| 326 | } |
| 327 | |
| 328 | JNIHandles::destroy_local(cls); |
| 329 | |
| 330 | // These numbers are chosen so that VerifyClassCodes interface doesn't need |
| 331 | // to be changed (still return jboolean (unsigned char)), and result is |
| 332 | // 1 when verification is passed. |
| 333 | if (result == 0) { |
| 334 | return vmSymbols::java_lang_VerifyError(); |
| 335 | } else if (result == 1) { |
| 336 | return NULL__null; // verified. |
| 337 | } else if (result == 2) { |
| 338 | THROW_MSG_(vmSymbols::java_lang_OutOfMemoryError(), message, NULL){ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 338, vmSymbols::java_lang_OutOfMemoryError(), message); return __null; }; |
| 339 | } else if (result == 3) { |
| 340 | return vmSymbols::java_lang_ClassFormatError(); |
| 341 | } else { |
| 342 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 342); ::breakpoint(); } while (0); |
| 343 | return NULL__null; |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | TypeOrigin TypeOrigin::null() { |
| 348 | return TypeOrigin(); |
| 349 | } |
| 350 | TypeOrigin TypeOrigin::local(u2 index, StackMapFrame* frame) { |
| 351 | assert(frame != NULL, "Must have a frame")do { if (!(frame != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 351, "assert(" "frame != __null" ") failed", "Must have a frame" ); ::breakpoint(); } } while (0); |
| 352 | return TypeOrigin(CF_LOCALS, index, StackMapFrame::copy(frame), |
| 353 | frame->local_at(index)); |
| 354 | } |
| 355 | TypeOrigin TypeOrigin::stack(u2 index, StackMapFrame* frame) { |
| 356 | assert(frame != NULL, "Must have a frame")do { if (!(frame != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 356, "assert(" "frame != __null" ") failed", "Must have a frame" ); ::breakpoint(); } } while (0); |
| 357 | return TypeOrigin(CF_STACK, index, StackMapFrame::copy(frame), |
| 358 | frame->stack_at(index)); |
| 359 | } |
| 360 | TypeOrigin TypeOrigin::sm_local(u2 index, StackMapFrame* frame) { |
| 361 | assert(frame != NULL, "Must have a frame")do { if (!(frame != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 361, "assert(" "frame != __null" ") failed", "Must have a frame" ); ::breakpoint(); } } while (0); |
| 362 | return TypeOrigin(SM_LOCALS, index, StackMapFrame::copy(frame), |
| 363 | frame->local_at(index)); |
| 364 | } |
| 365 | TypeOrigin TypeOrigin::sm_stack(u2 index, StackMapFrame* frame) { |
| 366 | assert(frame != NULL, "Must have a frame")do { if (!(frame != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 366, "assert(" "frame != __null" ") failed", "Must have a frame" ); ::breakpoint(); } } while (0); |
| 367 | return TypeOrigin(SM_STACK, index, StackMapFrame::copy(frame), |
| 368 | frame->stack_at(index)); |
| 369 | } |
| 370 | TypeOrigin TypeOrigin::bad_index(u2 index) { |
| 371 | return TypeOrigin(BAD_INDEX, index, NULL__null, VerificationType::bogus_type()); |
| 372 | } |
| 373 | TypeOrigin TypeOrigin::cp(u2 index, VerificationType vt) { |
| 374 | return TypeOrigin(CONST_POOL, index, NULL__null, vt); |
| 375 | } |
| 376 | TypeOrigin TypeOrigin::signature(VerificationType vt) { |
| 377 | return TypeOrigin(SIG, 0, NULL__null, vt); |
| 378 | } |
| 379 | TypeOrigin TypeOrigin::implicit(VerificationType t) { |
| 380 | return TypeOrigin(IMPLICIT, 0, NULL__null, t); |
| 381 | } |
| 382 | TypeOrigin TypeOrigin::frame(StackMapFrame* frame) { |
| 383 | return TypeOrigin(FRAME_ONLY, 0, StackMapFrame::copy(frame), |
| 384 | VerificationType::bogus_type()); |
| 385 | } |
| 386 | |
| 387 | void TypeOrigin::reset_frame() { |
| 388 | if (_frame != NULL__null) { |
| 389 | _frame->restore(); |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | void TypeOrigin::details(outputStream* ss) const { |
| 394 | _type.print_on(ss); |
| 395 | switch (_origin) { |
| 396 | case CF_LOCALS: |
| 397 | ss->print(" (current frame, locals[%d])", _index); |
| 398 | break; |
| 399 | case CF_STACK: |
| 400 | ss->print(" (current frame, stack[%d])", _index); |
| 401 | break; |
| 402 | case SM_LOCALS: |
| 403 | ss->print(" (stack map, locals[%d])", _index); |
| 404 | break; |
| 405 | case SM_STACK: |
| 406 | ss->print(" (stack map, stack[%d])", _index); |
| 407 | break; |
| 408 | case CONST_POOL: |
| 409 | ss->print(" (constant pool %d)", _index); |
| 410 | break; |
| 411 | case SIG: |
| 412 | ss->print(" (from method signature)"); |
| 413 | break; |
| 414 | case IMPLICIT: |
| 415 | case FRAME_ONLY: |
| 416 | case NONE: |
| 417 | default: |
| 418 | ; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | #ifdef ASSERT1 |
| 423 | void TypeOrigin::print_on(outputStream* str) const { |
| 424 | str->print("{%d,%d,%p:", _origin, _index, _frame); |
| 425 | if (_frame != NULL__null) { |
| 426 | _frame->print_on(str); |
| 427 | } else { |
| 428 | str->print("null"); |
| 429 | } |
| 430 | str->print(","); |
| 431 | _type.print_on(str); |
| 432 | str->print("}"); |
| 433 | } |
| 434 | #endif |
| 435 | |
| 436 | void ErrorContext::details(outputStream* ss, const Method* method) const { |
| 437 | if (is_valid()) { |
| 438 | ss->cr(); |
| 439 | ss->print_cr("Exception Details:"); |
| 440 | location_details(ss, method); |
| 441 | reason_details(ss); |
| 442 | frame_details(ss); |
| 443 | bytecode_details(ss, method); |
| 444 | handler_details(ss, method); |
| 445 | stackmap_details(ss, method); |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | void ErrorContext::reason_details(outputStream* ss) const { |
| 450 | streamIndentor si(ss); |
| 451 | ss->indent().print_cr("Reason:"); |
| 452 | streamIndentor si2(ss); |
| 453 | ss->indent().print("%s", ""); |
| 454 | switch (_fault) { |
| 455 | case INVALID_BYTECODE: |
| 456 | ss->print("Error exists in the bytecode"); |
| 457 | break; |
| 458 | case WRONG_TYPE: |
| 459 | if (_expected.is_valid()) { |
| 460 | ss->print("Type "); |
| 461 | _type.details(ss); |
| 462 | ss->print(" is not assignable to "); |
| 463 | _expected.details(ss); |
| 464 | } else { |
| 465 | ss->print("Invalid type: "); |
| 466 | _type.details(ss); |
| 467 | } |
| 468 | break; |
| 469 | case FLAGS_MISMATCH: |
| 470 | if (_expected.is_valid()) { |
| 471 | ss->print("Current frame's flags are not assignable " |
| 472 | "to stack map frame's."); |
| 473 | } else { |
| 474 | ss->print("Current frame's flags are invalid in this context."); |
| 475 | } |
| 476 | break; |
| 477 | case BAD_CP_INDEX: |
| 478 | ss->print("Constant pool index %d is invalid", _type.index()); |
| 479 | break; |
| 480 | case BAD_LOCAL_INDEX: |
| 481 | ss->print("Local index %d is invalid", _type.index()); |
| 482 | break; |
| 483 | case LOCALS_SIZE_MISMATCH: |
| 484 | ss->print("Current frame's local size doesn't match stackmap."); |
| 485 | break; |
| 486 | case STACK_SIZE_MISMATCH: |
| 487 | ss->print("Current frame's stack size doesn't match stackmap."); |
| 488 | break; |
| 489 | case STACK_OVERFLOW: |
| 490 | ss->print("Exceeded max stack size."); |
| 491 | break; |
| 492 | case STACK_UNDERFLOW: |
| 493 | ss->print("Attempt to pop empty stack."); |
| 494 | break; |
| 495 | case MISSING_STACKMAP: |
| 496 | ss->print("Expected stackmap frame at this location."); |
| 497 | break; |
| 498 | case BAD_STACKMAP: |
| 499 | ss->print("Invalid stackmap specification."); |
| 500 | break; |
| 501 | case UNKNOWN: |
| 502 | default: |
| 503 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 503); ::breakpoint(); } while (0); |
| 504 | ss->print_cr("Unknown"); |
| 505 | } |
| 506 | ss->cr(); |
| 507 | } |
| 508 | |
| 509 | void ErrorContext::location_details(outputStream* ss, const Method* method) const { |
| 510 | if (_bci != -1 && method != NULL__null) { |
| 511 | streamIndentor si(ss); |
| 512 | const char* bytecode_name = "<invalid>"; |
| 513 | if (method->validate_bci(_bci) != -1) { |
| 514 | Bytecodes::Code code = Bytecodes::code_or_bp_at(method->bcp_from(_bci)); |
| 515 | if (Bytecodes::is_defined(code)) { |
| 516 | bytecode_name = Bytecodes::name(code); |
| 517 | } else { |
| 518 | bytecode_name = "<illegal>"; |
| 519 | } |
| 520 | } |
| 521 | InstanceKlass* ik = method->method_holder(); |
| 522 | ss->indent().print_cr("Location:"); |
| 523 | streamIndentor si2(ss); |
| 524 | ss->indent().print_cr("%s.%s%s @%d: %s", |
| 525 | ik->name()->as_C_string(), method->name()->as_C_string(), |
| 526 | method->signature()->as_C_string(), _bci, bytecode_name); |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | void ErrorContext::frame_details(outputStream* ss) const { |
| 531 | streamIndentor si(ss); |
| 532 | if (_type.is_valid() && _type.frame() != NULL__null) { |
| 533 | ss->indent().print_cr("Current Frame:"); |
| 534 | streamIndentor si2(ss); |
| 535 | _type.frame()->print_on(ss); |
| 536 | } |
| 537 | if (_expected.is_valid() && _expected.frame() != NULL__null) { |
| 538 | ss->indent().print_cr("Stackmap Frame:"); |
| 539 | streamIndentor si2(ss); |
| 540 | _expected.frame()->print_on(ss); |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | void ErrorContext::bytecode_details(outputStream* ss, const Method* method) const { |
| 545 | if (method != NULL__null) { |
| 546 | streamIndentor si(ss); |
| 547 | ss->indent().print_cr("Bytecode:"); |
| 548 | streamIndentor si2(ss); |
| 549 | ss->print_data(method->code_base(), method->code_size(), false); |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | void ErrorContext::handler_details(outputStream* ss, const Method* method) const { |
| 554 | if (method != NULL__null) { |
| 555 | streamIndentor si(ss); |
| 556 | ExceptionTable table(method); |
| 557 | if (table.length() > 0) { |
| 558 | ss->indent().print_cr("Exception Handler Table:"); |
| 559 | streamIndentor si2(ss); |
| 560 | for (int i = 0; i < table.length(); ++i) { |
| 561 | ss->indent().print_cr("bci [%d, %d] => handler: %d", table.start_pc(i), |
| 562 | table.end_pc(i), table.handler_pc(i)); |
| 563 | } |
| 564 | } |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | void ErrorContext::stackmap_details(outputStream* ss, const Method* method) const { |
| 569 | if (method != NULL__null && method->has_stackmap_table()) { |
| 570 | streamIndentor si(ss); |
| 571 | ss->indent().print_cr("Stackmap Table:"); |
| 572 | Array<u1>* data = method->stackmap_data(); |
| 573 | stack_map_table* sm_table = |
| 574 | stack_map_table::at((address)data->adr_at(0)); |
| 575 | stack_map_frame* sm_frame = sm_table->entries(); |
| 576 | streamIndentor si2(ss); |
| 577 | int current_offset = -1; |
| 578 | address end_of_sm_table = (address)sm_table + method->stackmap_data()->length(); |
| 579 | for (u2 i = 0; i < sm_table->number_of_entries(); ++i) { |
| 580 | ss->indent(); |
| 581 | if (!sm_frame->verify((address)sm_frame, end_of_sm_table)) { |
| 582 | sm_frame->print_truncated(ss, current_offset); |
| 583 | return; |
| 584 | } |
| 585 | sm_frame->print_on(ss, current_offset); |
| 586 | ss->cr(); |
| 587 | current_offset += sm_frame->offset_delta(); |
| 588 | sm_frame = sm_frame->next(); |
| 589 | } |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | // Methods in ClassVerifier |
| 594 | |
| 595 | ClassVerifier::ClassVerifier(JavaThread* current, InstanceKlass* klass) |
| 596 | : _thread(current), _previous_symbol(NULL__null), _symbols(NULL__null), _exception_type(NULL__null), |
| 597 | _message(NULL__null), _method_signatures_table(NULL__null), _klass(klass) { |
| 598 | _this_type = VerificationType::reference_type(klass->name()); |
| 599 | } |
| 600 | |
| 601 | ClassVerifier::~ClassVerifier() { |
| 602 | // Decrement the reference count for any symbols created. |
| 603 | if (_symbols != NULL__null) { |
| 604 | for (int i = 0; i < _symbols->length(); i++) { |
| 605 | Symbol* s = _symbols->at(i); |
| 606 | s->decrement_refcount(); |
| 607 | } |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | VerificationType ClassVerifier::object_type() const { |
| 612 | return VerificationType::reference_type(vmSymbols::java_lang_Object()); |
| 613 | } |
| 614 | |
| 615 | TypeOrigin ClassVerifier::ref_ctx(const char* sig) { |
| 616 | VerificationType vt = VerificationType::reference_type( |
| 617 | create_temporary_symbol(sig, (int)strlen(sig))); |
| 618 | return TypeOrigin::implicit(vt); |
| 619 | } |
| 620 | |
| 621 | |
| 622 | void ClassVerifier::verify_class(TRAPSJavaThread* __the_thread__) { |
| 623 | log_info(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Info>("Verifying class %s with new format", _klass->external_name()); |
| 624 | |
| 625 | // Either verifying both local and remote classes or just remote classes. |
| 626 | assert(BytecodeVerificationRemote, "Should not be here")do { if (!(BytecodeVerificationRemote)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 626, "assert(" "BytecodeVerificationRemote" ") failed", "Should not be here" ); ::breakpoint(); } } while (0); |
| 627 | |
| 628 | // Create hash table containing method signatures. |
| 629 | method_signatures_table_type method_signatures_table; |
| 630 | set_method_signatures_table(&method_signatures_table); |
| 631 | |
| 632 | Array<Method*>* methods = _klass->methods(); |
| 633 | int num_methods = methods->length(); |
| 634 | |
| 635 | for (int index = 0; index < num_methods; index++) { |
| 636 | // Check for recursive re-verification before each method. |
| 637 | if (was_recursively_verified()) return; |
| 638 | |
| 639 | Method* m = methods->at(index); |
| 640 | if (m->is_native() || m->is_abstract() || m->is_overpass()) { |
| 641 | // If m is native or abstract, skip it. It is checked in class file |
| 642 | // parser that methods do not override a final method. Overpass methods |
| 643 | // are trusted since the VM generates them. |
| 644 | continue; |
| 645 | } |
| 646 | verify_method(methodHandle(THREAD__the_thread__, m), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 647 | } |
| 648 | |
| 649 | if (was_recursively_verified()){ |
| 650 | log_info(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Info>("Recursive verification detected for: %s", _klass->external_name()); |
| 651 | log_info(class, init)(!(LogImpl<(LogTag::_class), (LogTag::_init), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_class), (LogTag::_init), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("Recursive verification detected for: %s", |
| 652 | _klass->external_name()); |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | // Translate the signature entries into verification types and save them in |
| 657 | // the growable array. Also, save the count of arguments. |
| 658 | void ClassVerifier::translate_signature(Symbol* const method_sig, |
| 659 | sig_as_verification_types* sig_verif_types) { |
| 660 | SignatureStream sig_stream(method_sig); |
| 661 | VerificationType sig_type[2]; |
| 662 | int sig_i = 0; |
| 663 | GrowableArray<VerificationType>* verif_types = sig_verif_types->sig_verif_types(); |
| 664 | |
| 665 | // Translate the signature arguments into verification types. |
| 666 | while (!sig_stream.at_return_type()) { |
| 667 | int n = change_sig_to_verificationType(&sig_stream, sig_type); |
| 668 | assert(n <= 2, "Unexpected signature type")do { if (!(n <= 2)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 668, "assert(" "n <= 2" ") failed", "Unexpected signature type" ); ::breakpoint(); } } while (0); |
| 669 | |
| 670 | // Store verification type(s). Longs and Doubles each have two verificationTypes. |
| 671 | for (int x = 0; x < n; x++) { |
| 672 | verif_types->push(sig_type[x]); |
| 673 | } |
| 674 | sig_i += n; |
| 675 | sig_stream.next(); |
| 676 | } |
| 677 | |
| 678 | // Set final arg count, not including the return type. The final arg count will |
| 679 | // be compared with sig_verify_types' length to see if there is a return type. |
| 680 | sig_verif_types->set_num_args(sig_i); |
| 681 | |
| 682 | // Store verification type(s) for the return type, if there is one. |
| 683 | if (sig_stream.type() != T_VOID) { |
| 684 | int n = change_sig_to_verificationType(&sig_stream, sig_type); |
| 685 | assert(n <= 2, "Unexpected signature return type")do { if (!(n <= 2)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 685, "assert(" "n <= 2" ") failed", "Unexpected signature return type" ); ::breakpoint(); } } while (0); |
| 686 | for (int y = 0; y < n; y++) { |
| 687 | verif_types->push(sig_type[y]); |
| 688 | } |
| 689 | } |
| 690 | } |
| 691 | |
| 692 | void ClassVerifier::create_method_sig_entry(sig_as_verification_types* sig_verif_types, |
| 693 | int sig_index) { |
| 694 | // Translate the signature into verification types. |
| 695 | ConstantPool* cp = _klass->constants(); |
| 696 | Symbol* const method_sig = cp->symbol_at(sig_index); |
| 697 | translate_signature(method_sig, sig_verif_types); |
| 698 | |
| 699 | // Add the list of this signature's verification types to the table. |
| 700 | bool is_unique = method_signatures_table()->put(sig_index, sig_verif_types); |
| 701 | assert(is_unique, "Duplicate entries in method_signature_table")do { if (!(is_unique)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 701, "assert(" "is_unique" ") failed", "Duplicate entries in method_signature_table" ); ::breakpoint(); } } while (0); |
| 702 | } |
| 703 | |
| 704 | void ClassVerifier::verify_method(const methodHandle& m, TRAPSJavaThread* __the_thread__) { |
| 705 | HandleMark hm(THREAD__the_thread__); |
| 706 | _method = m; // initialize _method |
| 707 | log_info(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Info>("Verifying method %s", m->name_and_sig_as_C_string()); |
| 708 | |
| 709 | // For clang, the only good constant format string is a literal constant format string. |
| 710 | #define bad_type_msg"Bad type on operand stack in %s" "Bad type on operand stack in %s" |
| 711 | |
| 712 | int32_t max_stack = m->verifier_max_stack(); |
| 713 | int32_t max_locals = m->max_locals(); |
| 714 | constantPoolHandle cp(THREAD__the_thread__, m->constants()); |
| 715 | |
| 716 | // Method signature was checked in ClassFileParser. |
| 717 | assert(SignatureVerifier::is_valid_method_signature(m->signature()),do { if (!(SignatureVerifier::is_valid_method_signature(m-> signature()))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 718, "assert(" "SignatureVerifier::is_valid_method_signature(m->signature())" ") failed", "Invalid method signature"); ::breakpoint(); } } while (0) |
| 718 | "Invalid method signature")do { if (!(SignatureVerifier::is_valid_method_signature(m-> signature()))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 718, "assert(" "SignatureVerifier::is_valid_method_signature(m->signature())" ") failed", "Invalid method signature"); ::breakpoint(); } } while (0); |
| 719 | |
| 720 | // Initial stack map frame: offset is 0, stack is initially empty. |
| 721 | StackMapFrame current_frame(max_locals, max_stack, this); |
| 722 | // Set initial locals |
| 723 | VerificationType return_type = current_frame.set_locals_from_arg( m, current_type()); |
| 724 | |
| 725 | int32_t stackmap_index = 0; // index to the stackmap array |
| 726 | |
| 727 | u4 code_length = m->code_size(); |
| 728 | |
| 729 | // Scan the bytecode and map each instruction's start offset to a number. |
| 730 | char* code_data = generate_code_data(m, code_length, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 731 | |
| 732 | int ex_min = code_length; |
| 733 | int ex_max = -1; |
| 734 | // Look through each item on the exception table. Each of the fields must refer |
| 735 | // to a legal instruction. |
| 736 | if (was_recursively_verified()) return; |
| 737 | verify_exception_handler_table( |
| 738 | code_length, code_data, ex_min, ex_max, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 739 | |
| 740 | // Look through each entry on the local variable table and make sure |
| 741 | // its range of code array offsets is valid. (4169817) |
| 742 | if (m->has_localvariable_table()) { |
| 743 | verify_local_variable_table(code_length, code_data, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 744 | } |
| 745 | |
| 746 | Array<u1>* stackmap_data = m->stackmap_data(); |
| 747 | StackMapStream stream(stackmap_data); |
| 748 | StackMapReader reader(this, &stream, code_data, code_length, THREAD__the_thread__); |
| 749 | StackMapTable stackmap_table(&reader, ¤t_frame, max_locals, max_stack, |
| 750 | code_data, code_length, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 751 | |
| 752 | LogTarget(Debug, verification)LogTargetImpl<LogLevel::Debug, (LogTag::_verification), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG), (LogTag::__NO_TAG)> lt; |
| 753 | if (lt.is_enabled()) { |
| 754 | ResourceMark rm(THREAD__the_thread__); |
| 755 | LogStream ls(lt); |
| 756 | stackmap_table.print_on(&ls); |
| 757 | } |
| 758 | |
| 759 | RawBytecodeStream bcs(m); |
| 760 | |
| 761 | // Scan the byte code linearly from the start to the end |
| 762 | bool no_control_flow = false; // Set to true when there is no direct control |
| 763 | // flow from current instruction to the next |
| 764 | // instruction in sequence |
| 765 | |
| 766 | Bytecodes::Code opcode; |
| 767 | while (!bcs.is_last_bytecode()) { |
| 768 | // Check for recursive re-verification before each bytecode. |
| 769 | if (was_recursively_verified()) return; |
| 770 | |
| 771 | opcode = bcs.raw_next(); |
| 772 | u2 bci = bcs.bci(); |
| 773 | |
| 774 | // Set current frame's offset to bci |
| 775 | current_frame.set_offset(bci); |
| 776 | current_frame.set_mark(); |
| 777 | |
| 778 | // Make sure every offset in stackmap table point to the beginning to |
| 779 | // an instruction. Match current_frame to stackmap_table entry with |
| 780 | // the same offset if exists. |
| 781 | stackmap_index = verify_stackmap_table( |
| 782 | stackmap_index, bci, ¤t_frame, &stackmap_table, |
| 783 | no_control_flow, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 784 | |
| 785 | |
| 786 | bool this_uninit = false; // Set to true when invokespecial <init> initialized 'this' |
| 787 | bool verified_exc_handlers = false; |
| 788 | |
| 789 | // Merge with the next instruction |
| 790 | { |
| 791 | u2 index; |
| 792 | int target; |
| 793 | VerificationType type, type2; |
| 794 | VerificationType atype; |
| 795 | |
| 796 | LogTarget(Debug, verification)LogTargetImpl<LogLevel::Debug, (LogTag::_verification), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG), (LogTag::__NO_TAG)> lt; |
| 797 | if (lt.is_enabled()) { |
| 798 | ResourceMark rm(THREAD__the_thread__); |
| 799 | LogStream ls(lt); |
| 800 | current_frame.print_on(&ls); |
| 801 | lt.print("offset = %d, opcode = %s", bci, |
| 802 | opcode == Bytecodes::_illegal ? "illegal" : Bytecodes::name(opcode)); |
| 803 | } |
| 804 | |
| 805 | // Make sure wide instruction is in correct format |
| 806 | if (bcs.is_wide()) { |
| 807 | if (opcode != Bytecodes::_iinc && opcode != Bytecodes::_iload && |
| 808 | opcode != Bytecodes::_aload && opcode != Bytecodes::_lload && |
| 809 | opcode != Bytecodes::_istore && opcode != Bytecodes::_astore && |
| 810 | opcode != Bytecodes::_lstore && opcode != Bytecodes::_fload && |
| 811 | opcode != Bytecodes::_dload && opcode != Bytecodes::_fstore && |
| 812 | opcode != Bytecodes::_dstore) { |
| 813 | /* Unreachable? RawBytecodeStream's raw_next() returns 'illegal' |
| 814 | * if we encounter a wide instruction that modifies an invalid |
| 815 | * opcode (not one of the ones listed above) */ |
| 816 | verify_error(ErrorContext::bad_code(bci), "Bad wide instruction"); |
| 817 | return; |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | // Look for possible jump target in exception handlers and see if it |
| 822 | // matches current_frame. Do this check here for astore*, dstore*, |
| 823 | // fstore*, istore*, and lstore* opcodes because they can change the type |
| 824 | // state by adding a local. JVM Spec says that the incoming type state |
| 825 | // should be used for this check. So, do the check here before a possible |
| 826 | // local is added to the type state. |
| 827 | if (Bytecodes::is_store_into_local(opcode) && bci >= ex_min && bci < ex_max) { |
| 828 | if (was_recursively_verified()) return; |
| 829 | verify_exception_handler_targets( |
| 830 | bci, this_uninit, ¤t_frame, &stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 831 | verified_exc_handlers = true; |
| 832 | } |
| 833 | |
| 834 | if (was_recursively_verified()) return; |
| 835 | |
| 836 | switch (opcode) { |
| 837 | case Bytecodes::_nop : |
| 838 | no_control_flow = false; break; |
| 839 | case Bytecodes::_aconst_null : |
| 840 | current_frame.push_stack( |
| 841 | VerificationType::null_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 842 | no_control_flow = false; break; |
| 843 | case Bytecodes::_iconst_m1 : |
| 844 | case Bytecodes::_iconst_0 : |
| 845 | case Bytecodes::_iconst_1 : |
| 846 | case Bytecodes::_iconst_2 : |
| 847 | case Bytecodes::_iconst_3 : |
| 848 | case Bytecodes::_iconst_4 : |
| 849 | case Bytecodes::_iconst_5 : |
| 850 | current_frame.push_stack( |
| 851 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 852 | no_control_flow = false; break; |
| 853 | case Bytecodes::_lconst_0 : |
| 854 | case Bytecodes::_lconst_1 : |
| 855 | current_frame.push_stack_2( |
| 856 | VerificationType::long_type(), |
| 857 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 858 | no_control_flow = false; break; |
| 859 | case Bytecodes::_fconst_0 : |
| 860 | case Bytecodes::_fconst_1 : |
| 861 | case Bytecodes::_fconst_2 : |
| 862 | current_frame.push_stack( |
| 863 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 864 | no_control_flow = false; break; |
| 865 | case Bytecodes::_dconst_0 : |
| 866 | case Bytecodes::_dconst_1 : |
| 867 | current_frame.push_stack_2( |
| 868 | VerificationType::double_type(), |
| 869 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 870 | no_control_flow = false; break; |
| 871 | case Bytecodes::_sipush : |
| 872 | case Bytecodes::_bipush : |
| 873 | current_frame.push_stack( |
| 874 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 875 | no_control_flow = false; break; |
| 876 | case Bytecodes::_ldc : |
| 877 | verify_ldc( |
| 878 | opcode, bcs.get_index_u1(), ¤t_frame, |
| 879 | cp, bci, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 880 | no_control_flow = false; break; |
| 881 | case Bytecodes::_ldc_w : |
| 882 | case Bytecodes::_ldc2_w : |
| 883 | verify_ldc( |
| 884 | opcode, bcs.get_index_u2(), ¤t_frame, |
| 885 | cp, bci, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 886 | no_control_flow = false; break; |
| 887 | case Bytecodes::_iload : |
| 888 | verify_iload(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 889 | no_control_flow = false; break; |
| 890 | case Bytecodes::_iload_0 : |
| 891 | case Bytecodes::_iload_1 : |
| 892 | case Bytecodes::_iload_2 : |
| 893 | case Bytecodes::_iload_3 : |
| 894 | index = opcode - Bytecodes::_iload_0; |
| 895 | verify_iload(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 896 | no_control_flow = false; break; |
| 897 | case Bytecodes::_lload : |
| 898 | verify_lload(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 899 | no_control_flow = false; break; |
| 900 | case Bytecodes::_lload_0 : |
| 901 | case Bytecodes::_lload_1 : |
| 902 | case Bytecodes::_lload_2 : |
| 903 | case Bytecodes::_lload_3 : |
| 904 | index = opcode - Bytecodes::_lload_0; |
| 905 | verify_lload(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 906 | no_control_flow = false; break; |
| 907 | case Bytecodes::_fload : |
| 908 | verify_fload(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 909 | no_control_flow = false; break; |
| 910 | case Bytecodes::_fload_0 : |
| 911 | case Bytecodes::_fload_1 : |
| 912 | case Bytecodes::_fload_2 : |
| 913 | case Bytecodes::_fload_3 : |
| 914 | index = opcode - Bytecodes::_fload_0; |
| 915 | verify_fload(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 916 | no_control_flow = false; break; |
| 917 | case Bytecodes::_dload : |
| 918 | verify_dload(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 919 | no_control_flow = false; break; |
| 920 | case Bytecodes::_dload_0 : |
| 921 | case Bytecodes::_dload_1 : |
| 922 | case Bytecodes::_dload_2 : |
| 923 | case Bytecodes::_dload_3 : |
| 924 | index = opcode - Bytecodes::_dload_0; |
| 925 | verify_dload(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 926 | no_control_flow = false; break; |
| 927 | case Bytecodes::_aload : |
| 928 | verify_aload(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 929 | no_control_flow = false; break; |
| 930 | case Bytecodes::_aload_0 : |
| 931 | case Bytecodes::_aload_1 : |
| 932 | case Bytecodes::_aload_2 : |
| 933 | case Bytecodes::_aload_3 : |
| 934 | index = opcode - Bytecodes::_aload_0; |
| 935 | verify_aload(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 936 | no_control_flow = false; break; |
| 937 | case Bytecodes::_iaload : |
| 938 | type = current_frame.pop_stack( |
| 939 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 940 | atype = current_frame.pop_stack( |
| 941 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 942 | if (!atype.is_int_array()) { |
| 943 | verify_error(ErrorContext::bad_type(bci, |
| 944 | current_frame.stack_top_ctx(), ref_ctx("[I")), |
| 945 | bad_type_msg"Bad type on operand stack in %s", "iaload"); |
| 946 | return; |
| 947 | } |
| 948 | current_frame.push_stack( |
| 949 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 950 | no_control_flow = false; break; |
| 951 | case Bytecodes::_baload : |
| 952 | type = current_frame.pop_stack( |
| 953 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 954 | atype = current_frame.pop_stack( |
| 955 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 956 | if (!atype.is_bool_array() && !atype.is_byte_array()) { |
| 957 | verify_error( |
| 958 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 959 | bad_type_msg"Bad type on operand stack in %s", "baload"); |
| 960 | return; |
| 961 | } |
| 962 | current_frame.push_stack( |
| 963 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 964 | no_control_flow = false; break; |
| 965 | case Bytecodes::_caload : |
| 966 | type = current_frame.pop_stack( |
| 967 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 968 | atype = current_frame.pop_stack( |
| 969 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 970 | if (!atype.is_char_array()) { |
| 971 | verify_error(ErrorContext::bad_type(bci, |
| 972 | current_frame.stack_top_ctx(), ref_ctx("[C")), |
| 973 | bad_type_msg"Bad type on operand stack in %s", "caload"); |
| 974 | return; |
| 975 | } |
| 976 | current_frame.push_stack( |
| 977 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 978 | no_control_flow = false; break; |
| 979 | case Bytecodes::_saload : |
| 980 | type = current_frame.pop_stack( |
| 981 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 982 | atype = current_frame.pop_stack( |
| 983 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 984 | if (!atype.is_short_array()) { |
| 985 | verify_error(ErrorContext::bad_type(bci, |
| 986 | current_frame.stack_top_ctx(), ref_ctx("[S")), |
| 987 | bad_type_msg"Bad type on operand stack in %s", "saload"); |
| 988 | return; |
| 989 | } |
| 990 | current_frame.push_stack( |
| 991 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 992 | no_control_flow = false; break; |
| 993 | case Bytecodes::_laload : |
| 994 | type = current_frame.pop_stack( |
| 995 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 996 | atype = current_frame.pop_stack( |
| 997 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 998 | if (!atype.is_long_array()) { |
| 999 | verify_error(ErrorContext::bad_type(bci, |
| 1000 | current_frame.stack_top_ctx(), ref_ctx("[J")), |
| 1001 | bad_type_msg"Bad type on operand stack in %s", "laload"); |
| 1002 | return; |
| 1003 | } |
| 1004 | current_frame.push_stack_2( |
| 1005 | VerificationType::long_type(), |
| 1006 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1007 | no_control_flow = false; break; |
| 1008 | case Bytecodes::_faload : |
| 1009 | type = current_frame.pop_stack( |
| 1010 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1011 | atype = current_frame.pop_stack( |
| 1012 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1013 | if (!atype.is_float_array()) { |
| 1014 | verify_error(ErrorContext::bad_type(bci, |
| 1015 | current_frame.stack_top_ctx(), ref_ctx("[F")), |
| 1016 | bad_type_msg"Bad type on operand stack in %s", "faload"); |
| 1017 | return; |
| 1018 | } |
| 1019 | current_frame.push_stack( |
| 1020 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1021 | no_control_flow = false; break; |
| 1022 | case Bytecodes::_daload : |
| 1023 | type = current_frame.pop_stack( |
| 1024 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1025 | atype = current_frame.pop_stack( |
| 1026 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1027 | if (!atype.is_double_array()) { |
| 1028 | verify_error(ErrorContext::bad_type(bci, |
| 1029 | current_frame.stack_top_ctx(), ref_ctx("[D")), |
| 1030 | bad_type_msg"Bad type on operand stack in %s", "daload"); |
| 1031 | return; |
| 1032 | } |
| 1033 | current_frame.push_stack_2( |
| 1034 | VerificationType::double_type(), |
| 1035 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1036 | no_control_flow = false; break; |
| 1037 | case Bytecodes::_aaload : { |
| 1038 | type = current_frame.pop_stack( |
| 1039 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1040 | atype = current_frame.pop_stack( |
| 1041 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1042 | if (!atype.is_reference_array()) { |
| 1043 | verify_error(ErrorContext::bad_type(bci, |
| 1044 | current_frame.stack_top_ctx(), |
| 1045 | TypeOrigin::implicit(VerificationType::reference_check())), |
| 1046 | bad_type_msg"Bad type on operand stack in %s", "aaload"); |
| 1047 | return; |
| 1048 | } |
| 1049 | if (atype.is_null()) { |
| 1050 | current_frame.push_stack( |
| 1051 | VerificationType::null_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1052 | } else { |
| 1053 | VerificationType component = atype.get_component(this); |
| 1054 | current_frame.push_stack(component, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1055 | } |
| 1056 | no_control_flow = false; break; |
| 1057 | } |
| 1058 | case Bytecodes::_istore : |
| 1059 | verify_istore(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1060 | no_control_flow = false; break; |
| 1061 | case Bytecodes::_istore_0 : |
| 1062 | case Bytecodes::_istore_1 : |
| 1063 | case Bytecodes::_istore_2 : |
| 1064 | case Bytecodes::_istore_3 : |
| 1065 | index = opcode - Bytecodes::_istore_0; |
| 1066 | verify_istore(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1067 | no_control_flow = false; break; |
| 1068 | case Bytecodes::_lstore : |
| 1069 | verify_lstore(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1070 | no_control_flow = false; break; |
| 1071 | case Bytecodes::_lstore_0 : |
| 1072 | case Bytecodes::_lstore_1 : |
| 1073 | case Bytecodes::_lstore_2 : |
| 1074 | case Bytecodes::_lstore_3 : |
| 1075 | index = opcode - Bytecodes::_lstore_0; |
| 1076 | verify_lstore(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1077 | no_control_flow = false; break; |
| 1078 | case Bytecodes::_fstore : |
| 1079 | verify_fstore(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1080 | no_control_flow = false; break; |
| 1081 | case Bytecodes::_fstore_0 : |
| 1082 | case Bytecodes::_fstore_1 : |
| 1083 | case Bytecodes::_fstore_2 : |
| 1084 | case Bytecodes::_fstore_3 : |
| 1085 | index = opcode - Bytecodes::_fstore_0; |
| 1086 | verify_fstore(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1087 | no_control_flow = false; break; |
| 1088 | case Bytecodes::_dstore : |
| 1089 | verify_dstore(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1090 | no_control_flow = false; break; |
| 1091 | case Bytecodes::_dstore_0 : |
| 1092 | case Bytecodes::_dstore_1 : |
| 1093 | case Bytecodes::_dstore_2 : |
| 1094 | case Bytecodes::_dstore_3 : |
| 1095 | index = opcode - Bytecodes::_dstore_0; |
| 1096 | verify_dstore(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1097 | no_control_flow = false; break; |
| 1098 | case Bytecodes::_astore : |
| 1099 | verify_astore(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1100 | no_control_flow = false; break; |
| 1101 | case Bytecodes::_astore_0 : |
| 1102 | case Bytecodes::_astore_1 : |
| 1103 | case Bytecodes::_astore_2 : |
| 1104 | case Bytecodes::_astore_3 : |
| 1105 | index = opcode - Bytecodes::_astore_0; |
| 1106 | verify_astore(index, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1107 | no_control_flow = false; break; |
| 1108 | case Bytecodes::_iastore : |
| 1109 | type = current_frame.pop_stack( |
| 1110 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1111 | type2 = current_frame.pop_stack( |
| 1112 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1113 | atype = current_frame.pop_stack( |
| 1114 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1115 | if (!atype.is_int_array()) { |
| 1116 | verify_error(ErrorContext::bad_type(bci, |
| 1117 | current_frame.stack_top_ctx(), ref_ctx("[I")), |
| 1118 | bad_type_msg"Bad type on operand stack in %s", "iastore"); |
| 1119 | return; |
| 1120 | } |
| 1121 | no_control_flow = false; break; |
| 1122 | case Bytecodes::_bastore : |
| 1123 | type = current_frame.pop_stack( |
| 1124 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1125 | type2 = current_frame.pop_stack( |
| 1126 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1127 | atype = current_frame.pop_stack( |
| 1128 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1129 | if (!atype.is_bool_array() && !atype.is_byte_array()) { |
| 1130 | verify_error( |
| 1131 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 1132 | bad_type_msg"Bad type on operand stack in %s", "bastore"); |
| 1133 | return; |
| 1134 | } |
| 1135 | no_control_flow = false; break; |
| 1136 | case Bytecodes::_castore : |
| 1137 | current_frame.pop_stack( |
| 1138 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1139 | current_frame.pop_stack( |
| 1140 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1141 | atype = current_frame.pop_stack( |
| 1142 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1143 | if (!atype.is_char_array()) { |
| 1144 | verify_error(ErrorContext::bad_type(bci, |
| 1145 | current_frame.stack_top_ctx(), ref_ctx("[C")), |
| 1146 | bad_type_msg"Bad type on operand stack in %s", "castore"); |
| 1147 | return; |
| 1148 | } |
| 1149 | no_control_flow = false; break; |
| 1150 | case Bytecodes::_sastore : |
| 1151 | current_frame.pop_stack( |
| 1152 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1153 | current_frame.pop_stack( |
| 1154 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1155 | atype = current_frame.pop_stack( |
| 1156 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1157 | if (!atype.is_short_array()) { |
| 1158 | verify_error(ErrorContext::bad_type(bci, |
| 1159 | current_frame.stack_top_ctx(), ref_ctx("[S")), |
| 1160 | bad_type_msg"Bad type on operand stack in %s", "sastore"); |
| 1161 | return; |
| 1162 | } |
| 1163 | no_control_flow = false; break; |
| 1164 | case Bytecodes::_lastore : |
| 1165 | current_frame.pop_stack_2( |
| 1166 | VerificationType::long2_type(), |
| 1167 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1168 | current_frame.pop_stack( |
| 1169 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1170 | atype = current_frame.pop_stack( |
| 1171 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1172 | if (!atype.is_long_array()) { |
| 1173 | verify_error(ErrorContext::bad_type(bci, |
| 1174 | current_frame.stack_top_ctx(), ref_ctx("[J")), |
| 1175 | bad_type_msg"Bad type on operand stack in %s", "lastore"); |
| 1176 | return; |
| 1177 | } |
| 1178 | no_control_flow = false; break; |
| 1179 | case Bytecodes::_fastore : |
| 1180 | current_frame.pop_stack( |
| 1181 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1182 | current_frame.pop_stack |
| 1183 | (VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1184 | atype = current_frame.pop_stack( |
| 1185 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1186 | if (!atype.is_float_array()) { |
| 1187 | verify_error(ErrorContext::bad_type(bci, |
| 1188 | current_frame.stack_top_ctx(), ref_ctx("[F")), |
| 1189 | bad_type_msg"Bad type on operand stack in %s", "fastore"); |
| 1190 | return; |
| 1191 | } |
| 1192 | no_control_flow = false; break; |
| 1193 | case Bytecodes::_dastore : |
| 1194 | current_frame.pop_stack_2( |
| 1195 | VerificationType::double2_type(), |
| 1196 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1197 | current_frame.pop_stack( |
| 1198 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1199 | atype = current_frame.pop_stack( |
| 1200 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1201 | if (!atype.is_double_array()) { |
| 1202 | verify_error(ErrorContext::bad_type(bci, |
| 1203 | current_frame.stack_top_ctx(), ref_ctx("[D")), |
| 1204 | bad_type_msg"Bad type on operand stack in %s", "dastore"); |
| 1205 | return; |
| 1206 | } |
| 1207 | no_control_flow = false; break; |
| 1208 | case Bytecodes::_aastore : |
| 1209 | type = current_frame.pop_stack(object_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1210 | type2 = current_frame.pop_stack( |
| 1211 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1212 | atype = current_frame.pop_stack( |
| 1213 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1214 | // more type-checking is done at runtime |
| 1215 | if (!atype.is_reference_array()) { |
| 1216 | verify_error(ErrorContext::bad_type(bci, |
| 1217 | current_frame.stack_top_ctx(), |
| 1218 | TypeOrigin::implicit(VerificationType::reference_check())), |
| 1219 | bad_type_msg"Bad type on operand stack in %s", "aastore"); |
| 1220 | return; |
| 1221 | } |
| 1222 | // 4938384: relaxed constraint in JVMS 3nd edition. |
| 1223 | no_control_flow = false; break; |
| 1224 | case Bytecodes::_pop : |
| 1225 | current_frame.pop_stack( |
| 1226 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1227 | no_control_flow = false; break; |
| 1228 | case Bytecodes::_pop2 : |
| 1229 | type = current_frame.pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1230 | if (type.is_category1()) { |
| 1231 | current_frame.pop_stack( |
| 1232 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1233 | } else if (type.is_category2_2nd()) { |
| 1234 | current_frame.pop_stack( |
| 1235 | VerificationType::category2_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1236 | } else { |
| 1237 | /* Unreachable? Would need a category2_1st on TOS |
| 1238 | * which does not appear possible. */ |
| 1239 | verify_error( |
| 1240 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 1241 | bad_type_msg"Bad type on operand stack in %s", "pop2"); |
| 1242 | return; |
| 1243 | } |
| 1244 | no_control_flow = false; break; |
| 1245 | case Bytecodes::_dup : |
| 1246 | type = current_frame.pop_stack( |
| 1247 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1248 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1249 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1250 | no_control_flow = false; break; |
| 1251 | case Bytecodes::_dup_x1 : |
| 1252 | type = current_frame.pop_stack( |
| 1253 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1254 | type2 = current_frame.pop_stack( |
| 1255 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1256 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1257 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1258 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1259 | no_control_flow = false; break; |
| 1260 | case Bytecodes::_dup_x2 : |
| 1261 | { |
| 1262 | VerificationType type3; |
| 1263 | type = current_frame.pop_stack( |
| 1264 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1265 | type2 = current_frame.pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1266 | if (type2.is_category1()) { |
| 1267 | type3 = current_frame.pop_stack( |
| 1268 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1269 | } else if (type2.is_category2_2nd()) { |
| 1270 | type3 = current_frame.pop_stack( |
| 1271 | VerificationType::category2_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1272 | } else { |
| 1273 | /* Unreachable? Would need a category2_1st at stack depth 2 with |
| 1274 | * a category1 on TOS which does not appear possible. */ |
| 1275 | verify_error(ErrorContext::bad_type( |
| 1276 | bci, current_frame.stack_top_ctx()), bad_type_msg"Bad type on operand stack in %s", "dup_x2"); |
| 1277 | return; |
| 1278 | } |
| 1279 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1280 | current_frame.push_stack(type3, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1281 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1282 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1283 | no_control_flow = false; break; |
| 1284 | } |
| 1285 | case Bytecodes::_dup2 : |
| 1286 | type = current_frame.pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1287 | if (type.is_category1()) { |
| 1288 | type2 = current_frame.pop_stack( |
| 1289 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1290 | } else if (type.is_category2_2nd()) { |
| 1291 | type2 = current_frame.pop_stack( |
| 1292 | VerificationType::category2_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1293 | } else { |
| 1294 | /* Unreachable? Would need a category2_1st on TOS which does not |
| 1295 | * appear possible. */ |
| 1296 | verify_error( |
| 1297 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 1298 | bad_type_msg"Bad type on operand stack in %s", "dup2"); |
| 1299 | return; |
| 1300 | } |
| 1301 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1302 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1303 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1304 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1305 | no_control_flow = false; break; |
| 1306 | case Bytecodes::_dup2_x1 : |
| 1307 | { |
| 1308 | VerificationType type3; |
| 1309 | type = current_frame.pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1310 | if (type.is_category1()) { |
| 1311 | type2 = current_frame.pop_stack( |
| 1312 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1313 | } else if (type.is_category2_2nd()) { |
| 1314 | type2 = current_frame.pop_stack( |
| 1315 | VerificationType::category2_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1316 | } else { |
| 1317 | /* Unreachable? Would need a category2_1st on TOS which does |
| 1318 | * not appear possible. */ |
| 1319 | verify_error( |
| 1320 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 1321 | bad_type_msg"Bad type on operand stack in %s", "dup2_x1"); |
| 1322 | return; |
| 1323 | } |
| 1324 | type3 = current_frame.pop_stack( |
| 1325 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1326 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1327 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1328 | current_frame.push_stack(type3, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1329 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1330 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1331 | no_control_flow = false; break; |
| 1332 | } |
| 1333 | case Bytecodes::_dup2_x2 : |
| 1334 | { |
| 1335 | VerificationType type3, type4; |
| 1336 | type = current_frame.pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1337 | if (type.is_category1()) { |
| 1338 | type2 = current_frame.pop_stack( |
| 1339 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1340 | } else if (type.is_category2_2nd()) { |
| 1341 | type2 = current_frame.pop_stack( |
| 1342 | VerificationType::category2_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1343 | } else { |
| 1344 | /* Unreachable? Would need a category2_1st on TOS which does |
| 1345 | * not appear possible. */ |
| 1346 | verify_error( |
| 1347 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 1348 | bad_type_msg"Bad type on operand stack in %s", "dup2_x2"); |
| 1349 | return; |
| 1350 | } |
| 1351 | type3 = current_frame.pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1352 | if (type3.is_category1()) { |
| 1353 | type4 = current_frame.pop_stack( |
| 1354 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1355 | } else if (type3.is_category2_2nd()) { |
| 1356 | type4 = current_frame.pop_stack( |
| 1357 | VerificationType::category2_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1358 | } else { |
| 1359 | /* Unreachable? Would need a category2_1st on TOS after popping |
| 1360 | * a long/double or two category 1's, which does not |
| 1361 | * appear possible. */ |
| 1362 | verify_error( |
| 1363 | ErrorContext::bad_type(bci, current_frame.stack_top_ctx()), |
| 1364 | bad_type_msg"Bad type on operand stack in %s", "dup2_x2"); |
| 1365 | return; |
| 1366 | } |
| 1367 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1368 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1369 | current_frame.push_stack(type4, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1370 | current_frame.push_stack(type3, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1371 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1372 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1373 | no_control_flow = false; break; |
| 1374 | } |
| 1375 | case Bytecodes::_swap : |
| 1376 | type = current_frame.pop_stack( |
| 1377 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1378 | type2 = current_frame.pop_stack( |
| 1379 | VerificationType::category1_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1380 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1381 | current_frame.push_stack(type2, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1382 | no_control_flow = false; break; |
| 1383 | case Bytecodes::_iadd : |
| 1384 | case Bytecodes::_isub : |
| 1385 | case Bytecodes::_imul : |
| 1386 | case Bytecodes::_idiv : |
| 1387 | case Bytecodes::_irem : |
| 1388 | case Bytecodes::_ishl : |
| 1389 | case Bytecodes::_ishr : |
| 1390 | case Bytecodes::_iushr : |
| 1391 | case Bytecodes::_ior : |
| 1392 | case Bytecodes::_ixor : |
| 1393 | case Bytecodes::_iand : |
| 1394 | current_frame.pop_stack( |
| 1395 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1396 | // fall through |
| 1397 | case Bytecodes::_ineg : |
| 1398 | current_frame.pop_stack( |
| 1399 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1400 | current_frame.push_stack( |
| 1401 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1402 | no_control_flow = false; break; |
| 1403 | case Bytecodes::_ladd : |
| 1404 | case Bytecodes::_lsub : |
| 1405 | case Bytecodes::_lmul : |
| 1406 | case Bytecodes::_ldiv : |
| 1407 | case Bytecodes::_lrem : |
| 1408 | case Bytecodes::_land : |
| 1409 | case Bytecodes::_lor : |
| 1410 | case Bytecodes::_lxor : |
| 1411 | current_frame.pop_stack_2( |
| 1412 | VerificationType::long2_type(), |
| 1413 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1414 | // fall through |
| 1415 | case Bytecodes::_lneg : |
| 1416 | current_frame.pop_stack_2( |
| 1417 | VerificationType::long2_type(), |
| 1418 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1419 | current_frame.push_stack_2( |
| 1420 | VerificationType::long_type(), |
| 1421 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1422 | no_control_flow = false; break; |
| 1423 | case Bytecodes::_lshl : |
| 1424 | case Bytecodes::_lshr : |
| 1425 | case Bytecodes::_lushr : |
| 1426 | current_frame.pop_stack( |
| 1427 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1428 | current_frame.pop_stack_2( |
| 1429 | VerificationType::long2_type(), |
| 1430 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1431 | current_frame.push_stack_2( |
| 1432 | VerificationType::long_type(), |
| 1433 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1434 | no_control_flow = false; break; |
| 1435 | case Bytecodes::_fadd : |
| 1436 | case Bytecodes::_fsub : |
| 1437 | case Bytecodes::_fmul : |
| 1438 | case Bytecodes::_fdiv : |
| 1439 | case Bytecodes::_frem : |
| 1440 | current_frame.pop_stack( |
| 1441 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1442 | // fall through |
| 1443 | case Bytecodes::_fneg : |
| 1444 | current_frame.pop_stack( |
| 1445 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1446 | current_frame.push_stack( |
| 1447 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1448 | no_control_flow = false; break; |
| 1449 | case Bytecodes::_dadd : |
| 1450 | case Bytecodes::_dsub : |
| 1451 | case Bytecodes::_dmul : |
| 1452 | case Bytecodes::_ddiv : |
| 1453 | case Bytecodes::_drem : |
| 1454 | current_frame.pop_stack_2( |
| 1455 | VerificationType::double2_type(), |
| 1456 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1457 | // fall through |
| 1458 | case Bytecodes::_dneg : |
| 1459 | current_frame.pop_stack_2( |
| 1460 | VerificationType::double2_type(), |
| 1461 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1462 | current_frame.push_stack_2( |
| 1463 | VerificationType::double_type(), |
| 1464 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1465 | no_control_flow = false; break; |
| 1466 | case Bytecodes::_iinc : |
| 1467 | verify_iinc(bcs.get_index(), ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1468 | no_control_flow = false; break; |
| 1469 | case Bytecodes::_i2l : |
| 1470 | type = current_frame.pop_stack( |
| 1471 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1472 | current_frame.push_stack_2( |
| 1473 | VerificationType::long_type(), |
| 1474 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1475 | no_control_flow = false; break; |
| 1476 | case Bytecodes::_l2i : |
| 1477 | current_frame.pop_stack_2( |
| 1478 | VerificationType::long2_type(), |
| 1479 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1480 | current_frame.push_stack( |
| 1481 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1482 | no_control_flow = false; break; |
| 1483 | case Bytecodes::_i2f : |
| 1484 | current_frame.pop_stack( |
| 1485 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1486 | current_frame.push_stack( |
| 1487 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1488 | no_control_flow = false; break; |
| 1489 | case Bytecodes::_i2d : |
| 1490 | current_frame.pop_stack( |
| 1491 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1492 | current_frame.push_stack_2( |
| 1493 | VerificationType::double_type(), |
| 1494 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1495 | no_control_flow = false; break; |
| 1496 | case Bytecodes::_l2f : |
| 1497 | current_frame.pop_stack_2( |
| 1498 | VerificationType::long2_type(), |
| 1499 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1500 | current_frame.push_stack( |
| 1501 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1502 | no_control_flow = false; break; |
| 1503 | case Bytecodes::_l2d : |
| 1504 | current_frame.pop_stack_2( |
| 1505 | VerificationType::long2_type(), |
| 1506 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1507 | current_frame.push_stack_2( |
| 1508 | VerificationType::double_type(), |
| 1509 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1510 | no_control_flow = false; break; |
| 1511 | case Bytecodes::_f2i : |
| 1512 | current_frame.pop_stack( |
| 1513 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1514 | current_frame.push_stack( |
| 1515 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1516 | no_control_flow = false; break; |
| 1517 | case Bytecodes::_f2l : |
| 1518 | current_frame.pop_stack( |
| 1519 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1520 | current_frame.push_stack_2( |
| 1521 | VerificationType::long_type(), |
| 1522 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1523 | no_control_flow = false; break; |
| 1524 | case Bytecodes::_f2d : |
| 1525 | current_frame.pop_stack( |
| 1526 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1527 | current_frame.push_stack_2( |
| 1528 | VerificationType::double_type(), |
| 1529 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1530 | no_control_flow = false; break; |
| 1531 | case Bytecodes::_d2i : |
| 1532 | current_frame.pop_stack_2( |
| 1533 | VerificationType::double2_type(), |
| 1534 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1535 | current_frame.push_stack( |
| 1536 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1537 | no_control_flow = false; break; |
| 1538 | case Bytecodes::_d2l : |
| 1539 | current_frame.pop_stack_2( |
| 1540 | VerificationType::double2_type(), |
| 1541 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1542 | current_frame.push_stack_2( |
| 1543 | VerificationType::long_type(), |
| 1544 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1545 | no_control_flow = false; break; |
| 1546 | case Bytecodes::_d2f : |
| 1547 | current_frame.pop_stack_2( |
| 1548 | VerificationType::double2_type(), |
| 1549 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1550 | current_frame.push_stack( |
| 1551 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1552 | no_control_flow = false; break; |
| 1553 | case Bytecodes::_i2b : |
| 1554 | case Bytecodes::_i2c : |
| 1555 | case Bytecodes::_i2s : |
| 1556 | current_frame.pop_stack( |
| 1557 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1558 | current_frame.push_stack( |
| 1559 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1560 | no_control_flow = false; break; |
| 1561 | case Bytecodes::_lcmp : |
| 1562 | current_frame.pop_stack_2( |
| 1563 | VerificationType::long2_type(), |
| 1564 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1565 | current_frame.pop_stack_2( |
| 1566 | VerificationType::long2_type(), |
| 1567 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1568 | current_frame.push_stack( |
| 1569 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1570 | no_control_flow = false; break; |
| 1571 | case Bytecodes::_fcmpl : |
| 1572 | case Bytecodes::_fcmpg : |
| 1573 | current_frame.pop_stack( |
| 1574 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1575 | current_frame.pop_stack( |
| 1576 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1577 | current_frame.push_stack( |
| 1578 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1579 | no_control_flow = false; break; |
| 1580 | case Bytecodes::_dcmpl : |
| 1581 | case Bytecodes::_dcmpg : |
| 1582 | current_frame.pop_stack_2( |
| 1583 | VerificationType::double2_type(), |
| 1584 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1585 | current_frame.pop_stack_2( |
| 1586 | VerificationType::double2_type(), |
| 1587 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1588 | current_frame.push_stack( |
| 1589 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1590 | no_control_flow = false; break; |
| 1591 | case Bytecodes::_if_icmpeq: |
| 1592 | case Bytecodes::_if_icmpne: |
| 1593 | case Bytecodes::_if_icmplt: |
| 1594 | case Bytecodes::_if_icmpge: |
| 1595 | case Bytecodes::_if_icmpgt: |
| 1596 | case Bytecodes::_if_icmple: |
| 1597 | current_frame.pop_stack( |
| 1598 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1599 | // fall through |
| 1600 | case Bytecodes::_ifeq: |
| 1601 | case Bytecodes::_ifne: |
| 1602 | case Bytecodes::_iflt: |
| 1603 | case Bytecodes::_ifge: |
| 1604 | case Bytecodes::_ifgt: |
| 1605 | case Bytecodes::_ifle: |
| 1606 | current_frame.pop_stack( |
| 1607 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1608 | target = bcs.dest(); |
| 1609 | stackmap_table.check_jump_target( |
| 1610 | ¤t_frame, target, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1611 | no_control_flow = false; break; |
| 1612 | case Bytecodes::_if_acmpeq : |
| 1613 | case Bytecodes::_if_acmpne : |
| 1614 | current_frame.pop_stack( |
| 1615 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1616 | // fall through |
| 1617 | case Bytecodes::_ifnull : |
| 1618 | case Bytecodes::_ifnonnull : |
| 1619 | current_frame.pop_stack( |
| 1620 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1621 | target = bcs.dest(); |
| 1622 | stackmap_table.check_jump_target |
| 1623 | (¤t_frame, target, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1624 | no_control_flow = false; break; |
| 1625 | case Bytecodes::_goto : |
| 1626 | target = bcs.dest(); |
| 1627 | stackmap_table.check_jump_target( |
| 1628 | ¤t_frame, target, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1629 | no_control_flow = true; break; |
| 1630 | case Bytecodes::_goto_w : |
| 1631 | target = bcs.dest_w(); |
| 1632 | stackmap_table.check_jump_target( |
| 1633 | ¤t_frame, target, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1634 | no_control_flow = true; break; |
| 1635 | case Bytecodes::_tableswitch : |
| 1636 | case Bytecodes::_lookupswitch : |
| 1637 | verify_switch( |
| 1638 | &bcs, code_length, code_data, ¤t_frame, |
| 1639 | &stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1640 | no_control_flow = true; break; |
| 1641 | case Bytecodes::_ireturn : |
| 1642 | type = current_frame.pop_stack( |
| 1643 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1644 | verify_return_value(return_type, type, bci, |
| 1645 | ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1646 | no_control_flow = true; break; |
| 1647 | case Bytecodes::_lreturn : |
| 1648 | type2 = current_frame.pop_stack( |
| 1649 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1650 | type = current_frame.pop_stack( |
| 1651 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1652 | verify_return_value(return_type, type, bci, |
| 1653 | ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1654 | no_control_flow = true; break; |
| 1655 | case Bytecodes::_freturn : |
| 1656 | type = current_frame.pop_stack( |
| 1657 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1658 | verify_return_value(return_type, type, bci, |
| 1659 | ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1660 | no_control_flow = true; break; |
| 1661 | case Bytecodes::_dreturn : |
| 1662 | type2 = current_frame.pop_stack( |
| 1663 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1664 | type = current_frame.pop_stack( |
| 1665 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1666 | verify_return_value(return_type, type, bci, |
| 1667 | ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1668 | no_control_flow = true; break; |
| 1669 | case Bytecodes::_areturn : |
| 1670 | type = current_frame.pop_stack( |
| 1671 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1672 | verify_return_value(return_type, type, bci, |
| 1673 | ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1674 | no_control_flow = true; break; |
| 1675 | case Bytecodes::_return : |
| 1676 | if (return_type != VerificationType::bogus_type()) { |
| 1677 | verify_error(ErrorContext::bad_code(bci), |
| 1678 | "Method expects a return value"); |
| 1679 | return; |
| 1680 | } |
| 1681 | // Make sure "this" has been initialized if current method is an |
| 1682 | // <init>. |
| 1683 | if (_method->name() == vmSymbols::object_initializer_name() && |
| 1684 | current_frame.flag_this_uninit()) { |
| 1685 | verify_error(ErrorContext::bad_code(bci), |
| 1686 | "Constructor must call super() or this() " |
| 1687 | "before return"); |
| 1688 | return; |
| 1689 | } |
| 1690 | no_control_flow = true; break; |
| 1691 | case Bytecodes::_getstatic : |
| 1692 | case Bytecodes::_putstatic : |
| 1693 | // pass TRUE, operand can be an array type for getstatic/putstatic. |
| 1694 | verify_field_instructions( |
| 1695 | &bcs, ¤t_frame, cp, true, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1696 | no_control_flow = false; break; |
| 1697 | case Bytecodes::_getfield : |
| 1698 | case Bytecodes::_putfield : |
| 1699 | // pass FALSE, operand can't be an array type for getfield/putfield. |
| 1700 | verify_field_instructions( |
| 1701 | &bcs, ¤t_frame, cp, false, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1702 | no_control_flow = false; break; |
| 1703 | case Bytecodes::_invokevirtual : |
| 1704 | case Bytecodes::_invokespecial : |
| 1705 | case Bytecodes::_invokestatic : |
| 1706 | verify_invoke_instructions( |
| 1707 | &bcs, code_length, ¤t_frame, (bci >= ex_min && bci < ex_max), |
| 1708 | &this_uninit, return_type, cp, &stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1709 | no_control_flow = false; break; |
| 1710 | case Bytecodes::_invokeinterface : |
| 1711 | case Bytecodes::_invokedynamic : |
| 1712 | verify_invoke_instructions( |
| 1713 | &bcs, code_length, ¤t_frame, (bci >= ex_min && bci < ex_max), |
| 1714 | &this_uninit, return_type, cp, &stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1715 | no_control_flow = false; break; |
| 1716 | case Bytecodes::_new : |
| 1717 | { |
| 1718 | index = bcs.get_index_u2(); |
| 1719 | verify_cp_class_type(bci, index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1720 | VerificationType new_class_type = |
| 1721 | cp_index_to_type(index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1722 | if (!new_class_type.is_object()) { |
| 1723 | verify_error(ErrorContext::bad_type(bci, |
| 1724 | TypeOrigin::cp(index, new_class_type)), |
| 1725 | "Illegal new instruction"); |
| 1726 | return; |
| 1727 | } |
| 1728 | type = VerificationType::uninitialized_type(bci); |
| 1729 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1730 | no_control_flow = false; break; |
| 1731 | } |
| 1732 | case Bytecodes::_newarray : |
| 1733 | type = get_newarray_type(bcs.get_index(), bci, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1734 | current_frame.pop_stack( |
| 1735 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1736 | current_frame.push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1737 | no_control_flow = false; break; |
| 1738 | case Bytecodes::_anewarray : |
| 1739 | verify_anewarray( |
| 1740 | bci, bcs.get_index_u2(), cp, ¤t_frame, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1741 | no_control_flow = false; break; |
| 1742 | case Bytecodes::_arraylength : |
| 1743 | type = current_frame.pop_stack( |
| 1744 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1745 | if (!(type.is_null() || type.is_array())) { |
| 1746 | verify_error(ErrorContext::bad_type( |
| 1747 | bci, current_frame.stack_top_ctx()), |
| 1748 | bad_type_msg"Bad type on operand stack in %s", "arraylength"); |
| 1749 | } |
| 1750 | current_frame.push_stack( |
| 1751 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1752 | no_control_flow = false; break; |
| 1753 | case Bytecodes::_checkcast : |
| 1754 | { |
| 1755 | index = bcs.get_index_u2(); |
| 1756 | verify_cp_class_type(bci, index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1757 | current_frame.pop_stack(object_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1758 | VerificationType klass_type = cp_index_to_type( |
| 1759 | index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1760 | current_frame.push_stack(klass_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1761 | no_control_flow = false; break; |
| 1762 | } |
| 1763 | case Bytecodes::_instanceof : { |
| 1764 | index = bcs.get_index_u2(); |
| 1765 | verify_cp_class_type(bci, index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1766 | current_frame.pop_stack(object_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1767 | current_frame.push_stack( |
| 1768 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1769 | no_control_flow = false; break; |
| 1770 | } |
| 1771 | case Bytecodes::_monitorenter : |
| 1772 | case Bytecodes::_monitorexit : |
| 1773 | current_frame.pop_stack( |
| 1774 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1775 | no_control_flow = false; break; |
| 1776 | case Bytecodes::_multianewarray : |
| 1777 | { |
| 1778 | index = bcs.get_index_u2(); |
| 1779 | u2 dim = *(bcs.bcp()+3); |
| 1780 | verify_cp_class_type(bci, index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1781 | VerificationType new_array_type = |
| 1782 | cp_index_to_type(index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1783 | if (!new_array_type.is_array()) { |
| 1784 | verify_error(ErrorContext::bad_type(bci, |
| 1785 | TypeOrigin::cp(index, new_array_type)), |
| 1786 | "Illegal constant pool index in multianewarray instruction"); |
| 1787 | return; |
| 1788 | } |
| 1789 | if (dim < 1 || new_array_type.dimensions() < dim) { |
| 1790 | verify_error(ErrorContext::bad_code(bci), |
| 1791 | "Illegal dimension in multianewarray instruction: %d", dim); |
| 1792 | return; |
| 1793 | } |
| 1794 | for (int i = 0; i < dim; i++) { |
| 1795 | current_frame.pop_stack( |
| 1796 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1797 | } |
| 1798 | current_frame.push_stack(new_array_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1799 | no_control_flow = false; break; |
| 1800 | } |
| 1801 | case Bytecodes::_athrow : |
| 1802 | type = VerificationType::reference_type( |
| 1803 | vmSymbols::java_lang_Throwable()); |
| 1804 | current_frame.pop_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1805 | no_control_flow = true; break; |
| 1806 | default: |
| 1807 | // We only need to check the valid bytecodes in class file. |
| 1808 | // And jsr and ret are not in the new class file format in JDK1.6. |
| 1809 | verify_error(ErrorContext::bad_code(bci), |
| 1810 | "Bad instruction: %02x", opcode); |
| 1811 | no_control_flow = false; |
Value stored to 'no_control_flow' is never read | |
| 1812 | return; |
| 1813 | } // end switch |
| 1814 | } // end Merge with the next instruction |
| 1815 | |
| 1816 | // Look for possible jump target in exception handlers and see if it matches |
| 1817 | // current_frame. Don't do this check if it has already been done (for |
| 1818 | // ([a,d,f,i,l]store* opcodes). This check cannot be done earlier because |
| 1819 | // opcodes, such as invokespecial, may set the this_uninit flag. |
| 1820 | assert(!(verified_exc_handlers && this_uninit),do { if (!(!(verified_exc_handlers && this_uninit))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 1821, "assert(" "!(verified_exc_handlers && this_uninit)" ") failed", "Exception handler targets got verified before this_uninit got set" ); ::breakpoint(); } } while (0) |
| 1821 | "Exception handler targets got verified before this_uninit got set")do { if (!(!(verified_exc_handlers && this_uninit))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 1821, "assert(" "!(verified_exc_handlers && this_uninit)" ") failed", "Exception handler targets got verified before this_uninit got set" ); ::breakpoint(); } } while (0); |
| 1822 | if (!verified_exc_handlers && bci >= ex_min && bci < ex_max) { |
| 1823 | if (was_recursively_verified()) return; |
| 1824 | verify_exception_handler_targets( |
| 1825 | bci, this_uninit, ¤t_frame, &stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1826 | } |
| 1827 | } // end while |
| 1828 | |
| 1829 | // Make sure that control flow does not fall through end of the method |
| 1830 | if (!no_control_flow) { |
| 1831 | verify_error(ErrorContext::bad_code(code_length), |
| 1832 | "Control flow falls through code end"); |
| 1833 | return; |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | #undef bad_type_message |
| 1838 | |
| 1839 | char* ClassVerifier::generate_code_data(const methodHandle& m, u4 code_length, TRAPSJavaThread* __the_thread__) { |
| 1840 | char* code_data = NEW_RESOURCE_ARRAY(char, code_length)(char*) resource_allocate_bytes((code_length) * sizeof(char)); |
| 1841 | memset(code_data, 0, sizeof(char) * code_length); |
| 1842 | RawBytecodeStream bcs(m); |
| 1843 | |
| 1844 | while (!bcs.is_last_bytecode()) { |
| 1845 | if (bcs.raw_next() != Bytecodes::_illegal) { |
| 1846 | int bci = bcs.bci(); |
| 1847 | if (bcs.raw_code() == Bytecodes::_new) { |
| 1848 | code_data[bci] = NEW_OFFSET; |
| 1849 | } else { |
| 1850 | code_data[bci] = BYTECODE_OFFSET; |
| 1851 | } |
| 1852 | } else { |
| 1853 | verify_error(ErrorContext::bad_code(bcs.bci()), "Bad instruction"); |
| 1854 | return NULL__null; |
| 1855 | } |
| 1856 | } |
| 1857 | |
| 1858 | return code_data; |
| 1859 | } |
| 1860 | |
| 1861 | // Since this method references the constant pool, call was_recursively_verified() |
| 1862 | // before calling this method to make sure a prior class load did not cause the |
| 1863 | // current class to get verified. |
| 1864 | void ClassVerifier::verify_exception_handler_table(u4 code_length, char* code_data, int& min, int& max, TRAPSJavaThread* __the_thread__) { |
| 1865 | ExceptionTable exhandlers(_method()); |
| 1866 | int exlength = exhandlers.length(); |
| 1867 | constantPoolHandle cp (THREAD__the_thread__, _method->constants()); |
| 1868 | |
| 1869 | for(int i = 0; i < exlength; i++) { |
| 1870 | u2 start_pc = exhandlers.start_pc(i); |
| 1871 | u2 end_pc = exhandlers.end_pc(i); |
| 1872 | u2 handler_pc = exhandlers.handler_pc(i); |
| 1873 | if (start_pc >= code_length || code_data[start_pc] == 0) { |
| 1874 | class_format_error("Illegal exception table start_pc %d", start_pc); |
| 1875 | return; |
| 1876 | } |
| 1877 | if (end_pc != code_length) { // special case: end_pc == code_length |
| 1878 | if (end_pc > code_length || code_data[end_pc] == 0) { |
| 1879 | class_format_error("Illegal exception table end_pc %d", end_pc); |
| 1880 | return; |
| 1881 | } |
| 1882 | } |
| 1883 | if (handler_pc >= code_length || code_data[handler_pc] == 0) { |
| 1884 | class_format_error("Illegal exception table handler_pc %d", handler_pc); |
| 1885 | return; |
| 1886 | } |
| 1887 | int catch_type_index = exhandlers.catch_type_index(i); |
| 1888 | if (catch_type_index != 0) { |
| 1889 | VerificationType catch_type = cp_index_to_type( |
| 1890 | catch_type_index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1891 | VerificationType throwable = |
| 1892 | VerificationType::reference_type(vmSymbols::java_lang_Throwable()); |
| 1893 | // If the catch type is Throwable pre-resolve it now as the assignable check won't |
| 1894 | // do that, and we need to avoid a runtime resolution in case we are trying to |
| 1895 | // catch OutOfMemoryError. |
| 1896 | if (cp->klass_name_at(catch_type_index) == vmSymbols::java_lang_Throwable()) { |
| 1897 | cp->klass_at(catch_type_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); |
| 1898 | } |
| 1899 | bool is_subclass = throwable.is_assignable_from( |
| 1900 | catch_type, this, false, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 1901 | if (!is_subclass) { |
| 1902 | // 4286534: should throw VerifyError according to recent spec change |
| 1903 | verify_error(ErrorContext::bad_type(handler_pc, |
| 1904 | TypeOrigin::cp(catch_type_index, catch_type), |
| 1905 | TypeOrigin::implicit(throwable)), |
| 1906 | "Catch type is not a subclass " |
| 1907 | "of Throwable in exception handler %d", handler_pc); |
| 1908 | return; |
| 1909 | } |
| 1910 | } |
| 1911 | if (start_pc < min) min = start_pc; |
| 1912 | if (end_pc > max) max = end_pc; |
| 1913 | } |
| 1914 | } |
| 1915 | |
| 1916 | void ClassVerifier::verify_local_variable_table(u4 code_length, char* code_data, TRAPSJavaThread* __the_thread__) { |
| 1917 | int localvariable_table_length = _method->localvariable_table_length(); |
| 1918 | if (localvariable_table_length > 0) { |
| 1919 | LocalVariableTableElement* table = _method->localvariable_table_start(); |
| 1920 | for (int i = 0; i < localvariable_table_length; i++) { |
| 1921 | u2 start_bci = table[i].start_bci; |
| 1922 | u2 length = table[i].length; |
| 1923 | |
| 1924 | if (start_bci >= code_length || code_data[start_bci] == 0) { |
| 1925 | class_format_error( |
| 1926 | "Illegal local variable table start_pc %d", start_bci); |
| 1927 | return; |
| 1928 | } |
| 1929 | u4 end_bci = (u4)(start_bci + length); |
| 1930 | if (end_bci != code_length) { |
| 1931 | if (end_bci >= code_length || code_data[end_bci] == 0) { |
| 1932 | class_format_error( "Illegal local variable table length %d", length); |
| 1933 | return; |
| 1934 | } |
| 1935 | } |
| 1936 | } |
| 1937 | } |
| 1938 | } |
| 1939 | |
| 1940 | u2 ClassVerifier::verify_stackmap_table(u2 stackmap_index, u2 bci, |
| 1941 | StackMapFrame* current_frame, |
| 1942 | StackMapTable* stackmap_table, |
| 1943 | bool no_control_flow, TRAPSJavaThread* __the_thread__) { |
| 1944 | if (stackmap_index < stackmap_table->get_frame_count()) { |
| 1945 | u2 this_offset = stackmap_table->get_offset(stackmap_index); |
| 1946 | if (no_control_flow && this_offset > bci) { |
| 1947 | verify_error(ErrorContext::missing_stackmap(bci), |
| 1948 | "Expecting a stack map frame"); |
| 1949 | return 0; |
| 1950 | } |
| 1951 | if (this_offset == bci) { |
| 1952 | ErrorContext ctx; |
| 1953 | // See if current stack map can be assigned to the frame in table. |
| 1954 | // current_frame is the stackmap frame got from the last instruction. |
| 1955 | // If matched, current_frame will be updated by this method. |
| 1956 | bool matches = stackmap_table->match_stackmap( |
| 1957 | current_frame, this_offset, stackmap_index, |
| 1958 | !no_control_flow, true, &ctx, CHECK_VERIFY_(this, 0)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return 0; (void)(0); if ((this)->has_error()) return ( 0); ((void)0); |
| 1959 | if (!matches) { |
| 1960 | // report type error |
| 1961 | verify_error(ctx, "Instruction type does not match stack map"); |
| 1962 | return 0; |
| 1963 | } |
| 1964 | stackmap_index++; |
| 1965 | } else if (this_offset < bci) { |
| 1966 | // current_offset should have met this_offset. |
| 1967 | class_format_error("Bad stack map offset %d", this_offset); |
| 1968 | return 0; |
| 1969 | } |
| 1970 | } else if (no_control_flow) { |
| 1971 | verify_error(ErrorContext::bad_code(bci), "Expecting a stack map frame"); |
| 1972 | return 0; |
| 1973 | } |
| 1974 | return stackmap_index; |
| 1975 | } |
| 1976 | |
| 1977 | // Since this method references the constant pool, call was_recursively_verified() |
| 1978 | // before calling this method to make sure a prior class load did not cause the |
| 1979 | // current class to get verified. |
| 1980 | void ClassVerifier::verify_exception_handler_targets(u2 bci, bool this_uninit, |
| 1981 | StackMapFrame* current_frame, |
| 1982 | StackMapTable* stackmap_table, TRAPSJavaThread* __the_thread__) { |
| 1983 | constantPoolHandle cp (THREAD__the_thread__, _method->constants()); |
| 1984 | ExceptionTable exhandlers(_method()); |
| 1985 | int exlength = exhandlers.length(); |
| 1986 | for(int i = 0; i < exlength; i++) { |
| 1987 | u2 start_pc = exhandlers.start_pc(i); |
| 1988 | u2 end_pc = exhandlers.end_pc(i); |
| 1989 | u2 handler_pc = exhandlers.handler_pc(i); |
| 1990 | int catch_type_index = exhandlers.catch_type_index(i); |
| 1991 | if(bci >= start_pc && bci < end_pc) { |
| 1992 | u1 flags = current_frame->flags(); |
| 1993 | if (this_uninit) { flags |= FLAG_THIS_UNINIT; } |
| 1994 | StackMapFrame* new_frame = current_frame->frame_in_exception_handler(flags); |
| 1995 | if (catch_type_index != 0) { |
| 1996 | if (was_recursively_verified()) return; |
| 1997 | // We know that this index refers to a subclass of Throwable |
| 1998 | VerificationType catch_type = cp_index_to_type( |
| 1999 | catch_type_index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2000 | new_frame->push_stack(catch_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2001 | } else { |
| 2002 | VerificationType throwable = |
| 2003 | VerificationType::reference_type(vmSymbols::java_lang_Throwable()); |
| 2004 | new_frame->push_stack(throwable, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2005 | } |
| 2006 | ErrorContext ctx; |
| 2007 | bool matches = stackmap_table->match_stackmap( |
| 2008 | new_frame, handler_pc, true, false, &ctx, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2009 | if (!matches) { |
| 2010 | verify_error(ctx, "Stack map does not match the one at " |
| 2011 | "exception handler %d", handler_pc); |
| 2012 | return; |
| 2013 | } |
| 2014 | } |
| 2015 | } |
| 2016 | } |
| 2017 | |
| 2018 | void ClassVerifier::verify_cp_index( |
| 2019 | u2 bci, const constantPoolHandle& cp, int index, TRAPSJavaThread* __the_thread__) { |
| 2020 | int nconstants = cp->length(); |
| 2021 | if ((index <= 0) || (index >= nconstants)) { |
| 2022 | verify_error(ErrorContext::bad_cp_index(bci, index), |
| 2023 | "Illegal constant pool index %d in class %s", |
| 2024 | index, cp->pool_holder()->external_name()); |
| 2025 | return; |
| 2026 | } |
| 2027 | } |
| 2028 | |
| 2029 | void ClassVerifier::verify_cp_type( |
| 2030 | u2 bci, int index, const constantPoolHandle& cp, unsigned int types, TRAPSJavaThread* __the_thread__) { |
| 2031 | |
| 2032 | // In some situations, bytecode rewriting may occur while we're verifying. |
| 2033 | // In this case, a constant pool cache exists and some indices refer to that |
| 2034 | // instead. Be sure we don't pick up such indices by accident. |
| 2035 | // We must check was_recursively_verified() before we get here. |
| 2036 | guarantee(cp->cache() == NULL, "not rewritten yet")do { if (!(cp->cache() == __null)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2036, "guarantee(" "cp->cache() == NULL" ") failed", "not rewritten yet" ); ::breakpoint(); } } while (0); |
| 2037 | |
| 2038 | verify_cp_index(bci, cp, index, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2039 | unsigned int tag = cp->tag_at(index).value(); |
| 2040 | if ((types & (1 << tag)) == 0) { |
| 2041 | verify_error(ErrorContext::bad_cp_index(bci, index), |
| 2042 | "Illegal type at constant pool entry %d in class %s", |
| 2043 | index, cp->pool_holder()->external_name()); |
| 2044 | return; |
| 2045 | } |
| 2046 | } |
| 2047 | |
| 2048 | void ClassVerifier::verify_cp_class_type( |
| 2049 | u2 bci, int index, const constantPoolHandle& cp, TRAPSJavaThread* __the_thread__) { |
| 2050 | verify_cp_index(bci, cp, index, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2051 | constantTag tag = cp->tag_at(index); |
| 2052 | if (!tag.is_klass() && !tag.is_unresolved_klass()) { |
| 2053 | verify_error(ErrorContext::bad_cp_index(bci, index), |
| 2054 | "Illegal type at constant pool entry %d in class %s", |
| 2055 | index, cp->pool_holder()->external_name()); |
| 2056 | return; |
| 2057 | } |
| 2058 | } |
| 2059 | |
| 2060 | void ClassVerifier::verify_error(ErrorContext ctx, const char* msg, ...) { |
| 2061 | stringStream ss; |
| 2062 | |
| 2063 | ctx.reset_frames(); |
| 2064 | _exception_type = vmSymbols::java_lang_VerifyError(); |
| 2065 | _error_context = ctx; |
| 2066 | va_list va; |
| 2067 | va_start(va, msg)__builtin_va_start(va, msg); |
| 2068 | ss.vprint(msg, va); |
| 2069 | va_end(va)__builtin_va_end(va); |
| 2070 | _message = ss.as_string(); |
| 2071 | #ifdef ASSERT1 |
| 2072 | ResourceMark rm; |
| 2073 | const char* exception_name = _exception_type->as_C_string(); |
| 2074 | Exceptions::debug_check_abort(exception_name, NULL__null); |
| 2075 | #endif // ndef ASSERT |
| 2076 | } |
| 2077 | |
| 2078 | void ClassVerifier::class_format_error(const char* msg, ...) { |
| 2079 | stringStream ss; |
| 2080 | _exception_type = vmSymbols::java_lang_ClassFormatError(); |
| 2081 | va_list va; |
| 2082 | va_start(va, msg)__builtin_va_start(va, msg); |
| 2083 | ss.vprint(msg, va); |
| 2084 | va_end(va)__builtin_va_end(va); |
| 2085 | if (!_method.is_null()) { |
| 2086 | ss.print(" in method '"); |
| 2087 | _method->print_external_name(&ss); |
| 2088 | ss.print("'"); |
| 2089 | } |
| 2090 | _message = ss.as_string(); |
| 2091 | } |
| 2092 | |
| 2093 | Klass* ClassVerifier::load_class(Symbol* name, TRAPSJavaThread* __the_thread__) { |
| 2094 | HandleMark hm(THREAD__the_thread__); |
| 2095 | // Get current loader and protection domain first. |
| 2096 | oop loader = current_class()->class_loader(); |
| 2097 | oop protection_domain = current_class()->protection_domain(); |
| 2098 | |
| 2099 | assert(name_in_supers(name, current_class()), "name should be a super class")do { if (!(name_in_supers(name, current_class()))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2099, "assert(" "name_in_supers(name, current_class())" ") failed" , "name should be a super class"); ::breakpoint(); } } while ( 0); |
| 2100 | |
| 2101 | Klass* kls = SystemDictionary::resolve_or_fail( |
| 2102 | name, Handle(THREAD__the_thread__, loader), Handle(THREAD__the_thread__, protection_domain), |
| 2103 | true, THREAD__the_thread__); |
| 2104 | |
| 2105 | if (kls != NULL__null) { |
| 2106 | if (log_is_enabled(Debug, class, resolve)(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Debug))) { |
| 2107 | Verifier::trace_class_resolution(kls, current_class()); |
| 2108 | } |
| 2109 | } |
| 2110 | return kls; |
| 2111 | } |
| 2112 | |
| 2113 | bool ClassVerifier::is_protected_access(InstanceKlass* this_class, |
| 2114 | Klass* target_class, |
| 2115 | Symbol* field_name, |
| 2116 | Symbol* field_sig, |
| 2117 | bool is_method) { |
| 2118 | NoSafepointVerifier nosafepoint; |
| 2119 | |
| 2120 | // If target class isn't a super class of this class, we don't worry about this case |
| 2121 | if (!this_class->is_subclass_of(target_class)) { |
| 2122 | return false; |
| 2123 | } |
| 2124 | // Check if the specified method or field is protected |
| 2125 | InstanceKlass* target_instance = InstanceKlass::cast(target_class); |
| 2126 | fieldDescriptor fd; |
| 2127 | if (is_method) { |
| 2128 | Method* m = target_instance->uncached_lookup_method(field_name, field_sig, Klass::OverpassLookupMode::find); |
| 2129 | if (m != NULL__null && m->is_protected()) { |
| 2130 | if (!this_class->is_same_class_package(m->method_holder())) { |
| 2131 | return true; |
| 2132 | } |
| 2133 | } |
| 2134 | } else { |
| 2135 | Klass* member_klass = target_instance->find_field(field_name, field_sig, &fd); |
| 2136 | if (member_klass != NULL__null && fd.is_protected()) { |
| 2137 | if (!this_class->is_same_class_package(member_klass)) { |
| 2138 | return true; |
| 2139 | } |
| 2140 | } |
| 2141 | } |
| 2142 | return false; |
| 2143 | } |
| 2144 | |
| 2145 | void ClassVerifier::verify_ldc( |
| 2146 | int opcode, u2 index, StackMapFrame* current_frame, |
| 2147 | const constantPoolHandle& cp, u2 bci, TRAPSJavaThread* __the_thread__) { |
| 2148 | verify_cp_index(bci, cp, index, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2149 | constantTag tag = cp->tag_at(index); |
| 2150 | unsigned int types = 0; |
| 2151 | if (opcode == Bytecodes::_ldc || opcode == Bytecodes::_ldc_w) { |
| 2152 | if (!tag.is_unresolved_klass()) { |
| 2153 | types = (1 << JVM_CONSTANT_Integer) | (1 << JVM_CONSTANT_Float) |
| 2154 | | (1 << JVM_CONSTANT_String) | (1 << JVM_CONSTANT_Class) |
| 2155 | | (1 << JVM_CONSTANT_MethodHandle) | (1 << JVM_CONSTANT_MethodType) |
| 2156 | | (1 << JVM_CONSTANT_Dynamic); |
| 2157 | // Note: The class file parser already verified the legality of |
| 2158 | // MethodHandle and MethodType constants. |
| 2159 | verify_cp_type(bci, index, cp, types, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2160 | } |
| 2161 | } else { |
| 2162 | assert(opcode == Bytecodes::_ldc2_w, "must be ldc2_w")do { if (!(opcode == Bytecodes::_ldc2_w)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2162, "assert(" "opcode == Bytecodes::_ldc2_w" ") failed", "must be ldc2_w" ); ::breakpoint(); } } while (0); |
| 2163 | types = (1 << JVM_CONSTANT_Double) | (1 << JVM_CONSTANT_Long) |
| 2164 | | (1 << JVM_CONSTANT_Dynamic); |
| 2165 | verify_cp_type(bci, index, cp, types, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2166 | } |
| 2167 | if (tag.is_string()) { |
| 2168 | current_frame->push_stack( |
| 2169 | VerificationType::reference_type( |
| 2170 | vmSymbols::java_lang_String()), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2171 | } else if (tag.is_klass() || tag.is_unresolved_klass()) { |
| 2172 | current_frame->push_stack( |
| 2173 | VerificationType::reference_type( |
| 2174 | vmSymbols::java_lang_Class()), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2175 | } else if (tag.is_int()) { |
| 2176 | current_frame->push_stack( |
| 2177 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2178 | } else if (tag.is_float()) { |
| 2179 | current_frame->push_stack( |
| 2180 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2181 | } else if (tag.is_double()) { |
| 2182 | current_frame->push_stack_2( |
| 2183 | VerificationType::double_type(), |
| 2184 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2185 | } else if (tag.is_long()) { |
| 2186 | current_frame->push_stack_2( |
| 2187 | VerificationType::long_type(), |
| 2188 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2189 | } else if (tag.is_method_handle()) { |
| 2190 | current_frame->push_stack( |
| 2191 | VerificationType::reference_type( |
| 2192 | vmSymbols::java_lang_invoke_MethodHandle()), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2193 | } else if (tag.is_method_type()) { |
| 2194 | current_frame->push_stack( |
| 2195 | VerificationType::reference_type( |
| 2196 | vmSymbols::java_lang_invoke_MethodType()), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2197 | } else if (tag.is_dynamic_constant()) { |
| 2198 | Symbol* constant_type = cp->uncached_signature_ref_at(index); |
| 2199 | // Field signature was checked in ClassFileParser. |
| 2200 | assert(SignatureVerifier::is_valid_type_signature(constant_type),do { if (!(SignatureVerifier::is_valid_type_signature(constant_type ))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2201, "assert(" "SignatureVerifier::is_valid_type_signature(constant_type)" ") failed", "Invalid type for dynamic constant"); ::breakpoint (); } } while (0) |
| 2201 | "Invalid type for dynamic constant")do { if (!(SignatureVerifier::is_valid_type_signature(constant_type ))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2201, "assert(" "SignatureVerifier::is_valid_type_signature(constant_type)" ") failed", "Invalid type for dynamic constant"); ::breakpoint (); } } while (0); |
| 2202 | assert(sizeof(VerificationType) == sizeof(uintptr_t),do { if (!(sizeof(VerificationType) == sizeof(uintptr_t))) { ( *g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2203, "assert(" "sizeof(VerificationType) == sizeof(uintptr_t)" ") failed", "buffer type must match VerificationType size"); ::breakpoint(); } } while (0) |
| 2203 | "buffer type must match VerificationType size")do { if (!(sizeof(VerificationType) == sizeof(uintptr_t))) { ( *g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2203, "assert(" "sizeof(VerificationType) == sizeof(uintptr_t)" ") failed", "buffer type must match VerificationType size"); ::breakpoint(); } } while (0); |
| 2204 | uintptr_t constant_type_buffer[2]; |
| 2205 | VerificationType* v_constant_type = (VerificationType*)constant_type_buffer; |
| 2206 | SignatureStream sig_stream(constant_type, false); |
| 2207 | int n = change_sig_to_verificationType(&sig_stream, v_constant_type); |
| 2208 | int opcode_n = (opcode == Bytecodes::_ldc2_w ? 2 : 1); |
| 2209 | if (n != opcode_n) { |
| 2210 | // wrong kind of ldc; reverify against updated type mask |
| 2211 | types &= ~(1 << JVM_CONSTANT_Dynamic); |
| 2212 | verify_cp_type(bci, index, cp, types, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2213 | } |
| 2214 | for (int i = 0; i < n; i++) { |
| 2215 | current_frame->push_stack(v_constant_type[i], CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2216 | } |
| 2217 | } else { |
| 2218 | /* Unreachable? verify_cp_type has already validated the cp type. */ |
| 2219 | verify_error( |
| 2220 | ErrorContext::bad_cp_index(bci, index), "Invalid index in ldc"); |
| 2221 | return; |
| 2222 | } |
| 2223 | } |
| 2224 | |
| 2225 | void ClassVerifier::verify_switch( |
| 2226 | RawBytecodeStream* bcs, u4 code_length, char* code_data, |
| 2227 | StackMapFrame* current_frame, StackMapTable* stackmap_table, TRAPSJavaThread* __the_thread__) { |
| 2228 | int bci = bcs->bci(); |
| 2229 | address bcp = bcs->bcp(); |
| 2230 | address aligned_bcp = align_up(bcp + 1, jintSize); |
| 2231 | |
| 2232 | if (_klass->major_version() < NONZERO_PADDING_BYTES_IN_SWITCH_MAJOR_VERSION51) { |
| 2233 | // 4639449 & 4647081: padding bytes must be 0 |
| 2234 | u2 padding_offset = 1; |
| 2235 | while ((bcp + padding_offset) < aligned_bcp) { |
| 2236 | if(*(bcp + padding_offset) != 0) { |
| 2237 | verify_error(ErrorContext::bad_code(bci), |
| 2238 | "Nonzero padding byte in lookupswitch or tableswitch"); |
| 2239 | return; |
| 2240 | } |
| 2241 | padding_offset++; |
| 2242 | } |
| 2243 | } |
| 2244 | |
| 2245 | int default_offset = (int) Bytes::get_Java_u4(aligned_bcp); |
| 2246 | int keys, delta; |
| 2247 | current_frame->pop_stack( |
| 2248 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2249 | if (bcs->raw_code() == Bytecodes::_tableswitch) { |
| 2250 | jint low = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize); |
| 2251 | jint high = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize); |
| 2252 | if (low > high) { |
| 2253 | verify_error(ErrorContext::bad_code(bci), |
| 2254 | "low must be less than or equal to high in tableswitch"); |
| 2255 | return; |
| 2256 | } |
| 2257 | keys = high - low + 1; |
| 2258 | if (keys < 0) { |
| 2259 | verify_error(ErrorContext::bad_code(bci), "too many keys in tableswitch"); |
| 2260 | return; |
| 2261 | } |
| 2262 | delta = 1; |
| 2263 | } else { |
| 2264 | keys = (int)Bytes::get_Java_u4(aligned_bcp + jintSize); |
| 2265 | if (keys < 0) { |
| 2266 | verify_error(ErrorContext::bad_code(bci), |
| 2267 | "number of keys in lookupswitch less than 0"); |
| 2268 | return; |
| 2269 | } |
| 2270 | delta = 2; |
| 2271 | // Make sure that the lookupswitch items are sorted |
| 2272 | for (int i = 0; i < (keys - 1); i++) { |
| 2273 | jint this_key = Bytes::get_Java_u4(aligned_bcp + (2+2*i)*jintSize); |
| 2274 | jint next_key = Bytes::get_Java_u4(aligned_bcp + (2+2*i+2)*jintSize); |
| 2275 | if (this_key >= next_key) { |
| 2276 | verify_error(ErrorContext::bad_code(bci), |
| 2277 | "Bad lookupswitch instruction"); |
| 2278 | return; |
| 2279 | } |
| 2280 | } |
| 2281 | } |
| 2282 | int target = bci + default_offset; |
| 2283 | stackmap_table->check_jump_target(current_frame, target, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2284 | for (int i = 0; i < keys; i++) { |
| 2285 | // Because check_jump_target() may safepoint, the bytecode could have |
| 2286 | // moved, which means 'aligned_bcp' is no good and needs to be recalculated. |
| 2287 | aligned_bcp = align_up(bcs->bcp() + 1, jintSize); |
| 2288 | target = bci + (jint)Bytes::get_Java_u4(aligned_bcp+(3+i*delta)*jintSize); |
| 2289 | stackmap_table->check_jump_target( |
| 2290 | current_frame, target, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2291 | } |
| 2292 | NOT_PRODUCT(aligned_bcp = NULL)aligned_bcp = __null; // no longer valid at this point |
| 2293 | } |
| 2294 | |
| 2295 | bool ClassVerifier::name_in_supers( |
| 2296 | Symbol* ref_name, InstanceKlass* current) { |
| 2297 | Klass* super = current->super(); |
| 2298 | while (super != NULL__null) { |
| 2299 | if (super->name() == ref_name) { |
| 2300 | return true; |
| 2301 | } |
| 2302 | super = super->super(); |
| 2303 | } |
| 2304 | return false; |
| 2305 | } |
| 2306 | |
| 2307 | void ClassVerifier::verify_field_instructions(RawBytecodeStream* bcs, |
| 2308 | StackMapFrame* current_frame, |
| 2309 | const constantPoolHandle& cp, |
| 2310 | bool allow_arrays, |
| 2311 | TRAPSJavaThread* __the_thread__) { |
| 2312 | u2 index = bcs->get_index_u2(); |
| 2313 | verify_cp_type(bcs->bci(), index, cp, |
| 2314 | 1 << JVM_CONSTANT_Fieldref, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2315 | |
| 2316 | // Get field name and signature |
| 2317 | Symbol* field_name = cp->name_ref_at(index); |
| 2318 | Symbol* field_sig = cp->signature_ref_at(index); |
| 2319 | bool is_getfield = false; |
| 2320 | |
| 2321 | // Field signature was checked in ClassFileParser. |
| 2322 | assert(SignatureVerifier::is_valid_type_signature(field_sig),do { if (!(SignatureVerifier::is_valid_type_signature(field_sig ))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2323, "assert(" "SignatureVerifier::is_valid_type_signature(field_sig)" ") failed", "Invalid field signature"); ::breakpoint(); } } while (0) |
| 2323 | "Invalid field signature")do { if (!(SignatureVerifier::is_valid_type_signature(field_sig ))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2323, "assert(" "SignatureVerifier::is_valid_type_signature(field_sig)" ") failed", "Invalid field signature"); ::breakpoint(); } } while (0); |
| 2324 | |
| 2325 | // Get referenced class type |
| 2326 | VerificationType ref_class_type = cp_ref_index_to_type( |
| 2327 | index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2328 | if (!ref_class_type.is_object() && |
| 2329 | (!allow_arrays || !ref_class_type.is_array())) { |
| 2330 | verify_error(ErrorContext::bad_type(bcs->bci(), |
| 2331 | TypeOrigin::cp(index, ref_class_type)), |
| 2332 | "Expecting reference to class in class %s at constant pool index %d", |
| 2333 | _klass->external_name(), index); |
| 2334 | return; |
| 2335 | } |
| 2336 | VerificationType target_class_type = ref_class_type; |
| 2337 | |
| 2338 | assert(sizeof(VerificationType) == sizeof(uintptr_t),do { if (!(sizeof(VerificationType) == sizeof(uintptr_t))) { ( *g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2339, "assert(" "sizeof(VerificationType) == sizeof(uintptr_t)" ") failed", "buffer type must match VerificationType size"); ::breakpoint(); } } while (0) |
| 2339 | "buffer type must match VerificationType size")do { if (!(sizeof(VerificationType) == sizeof(uintptr_t))) { ( *g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2339, "assert(" "sizeof(VerificationType) == sizeof(uintptr_t)" ") failed", "buffer type must match VerificationType size"); ::breakpoint(); } } while (0); |
| 2340 | uintptr_t field_type_buffer[2]; |
| 2341 | VerificationType* field_type = (VerificationType*)field_type_buffer; |
| 2342 | // If we make a VerificationType[2] array directly, the compiler calls |
| 2343 | // to the c-runtime library to do the allocation instead of just |
| 2344 | // stack allocating it. Plus it would run constructors. This shows up |
| 2345 | // in performance profiles. |
| 2346 | |
| 2347 | SignatureStream sig_stream(field_sig, false); |
| 2348 | VerificationType stack_object_type; |
| 2349 | int n = change_sig_to_verificationType(&sig_stream, field_type); |
| 2350 | u2 bci = bcs->bci(); |
| 2351 | bool is_assignable; |
| 2352 | switch (bcs->raw_code()) { |
| 2353 | case Bytecodes::_getstatic: { |
| 2354 | for (int i = 0; i < n; i++) { |
| 2355 | current_frame->push_stack(field_type[i], CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2356 | } |
| 2357 | break; |
| 2358 | } |
| 2359 | case Bytecodes::_putstatic: { |
| 2360 | for (int i = n - 1; i >= 0; i--) { |
| 2361 | current_frame->pop_stack(field_type[i], CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2362 | } |
| 2363 | break; |
| 2364 | } |
| 2365 | case Bytecodes::_getfield: { |
| 2366 | is_getfield = true; |
| 2367 | stack_object_type = current_frame->pop_stack( |
| 2368 | target_class_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2369 | goto check_protected; |
| 2370 | } |
| 2371 | case Bytecodes::_putfield: { |
| 2372 | for (int i = n - 1; i >= 0; i--) { |
| 2373 | current_frame->pop_stack(field_type[i], CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2374 | } |
| 2375 | stack_object_type = current_frame->pop_stack(CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2376 | |
| 2377 | // The JVMS 2nd edition allows field initialization before the superclass |
| 2378 | // initializer, if the field is defined within the current class. |
| 2379 | fieldDescriptor fd; |
| 2380 | if (stack_object_type == VerificationType::uninitialized_this_type() && |
| 2381 | target_class_type.equals(current_type()) && |
| 2382 | _klass->find_local_field(field_name, field_sig, &fd)) { |
| 2383 | stack_object_type = current_type(); |
| 2384 | } |
| 2385 | is_assignable = target_class_type.is_assignable_from( |
| 2386 | stack_object_type, this, false, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2387 | if (!is_assignable) { |
| 2388 | verify_error(ErrorContext::bad_type(bci, |
| 2389 | current_frame->stack_top_ctx(), |
| 2390 | TypeOrigin::cp(index, target_class_type)), |
| 2391 | "Bad type on operand stack in putfield"); |
| 2392 | return; |
| 2393 | } |
| 2394 | } |
| 2395 | check_protected: { |
| 2396 | if (_this_type == stack_object_type) |
| 2397 | break; // stack_object_type must be assignable to _current_class_type |
| 2398 | if (was_recursively_verified()) { |
| 2399 | if (is_getfield) { |
| 2400 | // Push field type for getfield. |
| 2401 | for (int i = 0; i < n; i++) { |
| 2402 | current_frame->push_stack(field_type[i], CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2403 | } |
| 2404 | } |
| 2405 | return; |
| 2406 | } |
| 2407 | Symbol* ref_class_name = |
| 2408 | cp->klass_name_at(cp->klass_ref_index_at(index)); |
| 2409 | if (!name_in_supers(ref_class_name, current_class())) |
| 2410 | // stack_object_type must be assignable to _current_class_type since: |
| 2411 | // 1. stack_object_type must be assignable to ref_class. |
| 2412 | // 2. ref_class must be _current_class or a subclass of it. It can't |
| 2413 | // be a superclass of it. See revised JVMS 5.4.4. |
| 2414 | break; |
| 2415 | |
| 2416 | Klass* ref_class_oop = load_class(ref_class_name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); |
| 2417 | if (is_protected_access(current_class(), ref_class_oop, field_name, |
| 2418 | field_sig, false)) { |
| 2419 | // It's protected access, check if stack object is assignable to |
| 2420 | // current class. |
| 2421 | is_assignable = current_type().is_assignable_from( |
| 2422 | stack_object_type, this, true, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2423 | if (!is_assignable) { |
| 2424 | verify_error(ErrorContext::bad_type(bci, |
| 2425 | current_frame->stack_top_ctx(), |
| 2426 | TypeOrigin::implicit(current_type())), |
| 2427 | "Bad access to protected data in %s", |
| 2428 | is_getfield ? "getfield" : "putfield"); |
| 2429 | return; |
| 2430 | } |
| 2431 | } |
| 2432 | break; |
| 2433 | } |
| 2434 | default: ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2434); ::breakpoint(); } while (0); |
| 2435 | } |
| 2436 | if (is_getfield) { |
| 2437 | // Push field type for getfield after doing protection check. |
| 2438 | for (int i = 0; i < n; i++) { |
| 2439 | current_frame->push_stack(field_type[i], CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2440 | } |
| 2441 | } |
| 2442 | } |
| 2443 | |
| 2444 | // Look at the method's handlers. If the bci is in the handler's try block |
| 2445 | // then check if the handler_pc is already on the stack. If not, push it |
| 2446 | // unless the handler has already been scanned. |
| 2447 | void ClassVerifier::push_handlers(ExceptionTable* exhandlers, |
| 2448 | GrowableArray<u4>* handler_list, |
| 2449 | GrowableArray<u4>* handler_stack, |
| 2450 | u4 bci) { |
| 2451 | int exlength = exhandlers->length(); |
| 2452 | for(int x = 0; x < exlength; x++) { |
| 2453 | if (bci >= exhandlers->start_pc(x) && bci < exhandlers->end_pc(x)) { |
| 2454 | u4 exhandler_pc = exhandlers->handler_pc(x); |
| 2455 | if (!handler_list->contains(exhandler_pc)) { |
| 2456 | handler_stack->append_if_missing(exhandler_pc); |
| 2457 | handler_list->append(exhandler_pc); |
| 2458 | } |
| 2459 | } |
| 2460 | } |
| 2461 | } |
| 2462 | |
| 2463 | // Return TRUE if all code paths starting with start_bc_offset end in |
| 2464 | // bytecode athrow or loop. |
| 2465 | bool ClassVerifier::ends_in_athrow(u4 start_bc_offset) { |
| 2466 | ResourceMark rm; |
| 2467 | // Create bytecode stream. |
| 2468 | RawBytecodeStream bcs(method()); |
| 2469 | u4 code_length = method()->code_size(); |
| 2470 | bcs.set_start(start_bc_offset); |
| 2471 | u4 target; |
| 2472 | // Create stack for storing bytecode start offsets for if* and *switch. |
| 2473 | GrowableArray<u4>* bci_stack = new GrowableArray<u4>(30); |
| 2474 | // Create stack for handlers for try blocks containing this handler. |
| 2475 | GrowableArray<u4>* handler_stack = new GrowableArray<u4>(30); |
| 2476 | // Create list of handlers that have been pushed onto the handler_stack |
| 2477 | // so that handlers embedded inside of their own TRY blocks only get |
| 2478 | // scanned once. |
| 2479 | GrowableArray<u4>* handler_list = new GrowableArray<u4>(30); |
| 2480 | // Create list of visited branch opcodes (goto* and if*). |
| 2481 | GrowableArray<u4>* visited_branches = new GrowableArray<u4>(30); |
| 2482 | ExceptionTable exhandlers(_method()); |
| 2483 | |
| 2484 | while (true) { |
| 2485 | if (bcs.is_last_bytecode()) { |
| 2486 | // if no more starting offsets to parse or if at the end of the |
| 2487 | // method then return false. |
| 2488 | if ((bci_stack->is_empty()) || ((u4)bcs.end_bci() == code_length)) |
| 2489 | return false; |
| 2490 | // Pop a bytecode starting offset and scan from there. |
| 2491 | bcs.set_start(bci_stack->pop()); |
| 2492 | } |
| 2493 | Bytecodes::Code opcode = bcs.raw_next(); |
| 2494 | u4 bci = bcs.bci(); |
| 2495 | |
| 2496 | // If the bytecode is in a TRY block, push its handlers so they |
| 2497 | // will get parsed. |
| 2498 | push_handlers(&exhandlers, handler_list, handler_stack, bci); |
| 2499 | |
| 2500 | switch (opcode) { |
| 2501 | case Bytecodes::_if_icmpeq: |
| 2502 | case Bytecodes::_if_icmpne: |
| 2503 | case Bytecodes::_if_icmplt: |
| 2504 | case Bytecodes::_if_icmpge: |
| 2505 | case Bytecodes::_if_icmpgt: |
| 2506 | case Bytecodes::_if_icmple: |
| 2507 | case Bytecodes::_ifeq: |
| 2508 | case Bytecodes::_ifne: |
| 2509 | case Bytecodes::_iflt: |
| 2510 | case Bytecodes::_ifge: |
| 2511 | case Bytecodes::_ifgt: |
| 2512 | case Bytecodes::_ifle: |
| 2513 | case Bytecodes::_if_acmpeq: |
| 2514 | case Bytecodes::_if_acmpne: |
| 2515 | case Bytecodes::_ifnull: |
| 2516 | case Bytecodes::_ifnonnull: |
| 2517 | target = bcs.dest(); |
| 2518 | if (visited_branches->contains(bci)) { |
| 2519 | if (bci_stack->is_empty()) { |
| 2520 | if (handler_stack->is_empty()) { |
| 2521 | return true; |
| 2522 | } else { |
| 2523 | // Parse the catch handlers for try blocks containing athrow. |
| 2524 | bcs.set_start(handler_stack->pop()); |
| 2525 | } |
| 2526 | } else { |
| 2527 | // Pop a bytecode starting offset and scan from there. |
| 2528 | bcs.set_start(bci_stack->pop()); |
| 2529 | } |
| 2530 | } else { |
| 2531 | if (target > bci) { // forward branch |
| 2532 | if (target >= code_length) return false; |
| 2533 | // Push the branch target onto the stack. |
| 2534 | bci_stack->push(target); |
| 2535 | // then, scan bytecodes starting with next. |
| 2536 | bcs.set_start(bcs.next_bci()); |
| 2537 | } else { // backward branch |
| 2538 | // Push bytecode offset following backward branch onto the stack. |
| 2539 | bci_stack->push(bcs.next_bci()); |
| 2540 | // Check bytecodes starting with branch target. |
| 2541 | bcs.set_start(target); |
| 2542 | } |
| 2543 | // Record target so we don't branch here again. |
| 2544 | visited_branches->append(bci); |
| 2545 | } |
| 2546 | break; |
| 2547 | |
| 2548 | case Bytecodes::_goto: |
| 2549 | case Bytecodes::_goto_w: |
| 2550 | target = (opcode == Bytecodes::_goto ? bcs.dest() : bcs.dest_w()); |
| 2551 | if (visited_branches->contains(bci)) { |
| 2552 | if (bci_stack->is_empty()) { |
| 2553 | if (handler_stack->is_empty()) { |
| 2554 | return true; |
| 2555 | } else { |
| 2556 | // Parse the catch handlers for try blocks containing athrow. |
| 2557 | bcs.set_start(handler_stack->pop()); |
| 2558 | } |
| 2559 | } else { |
| 2560 | // Been here before, pop new starting offset from stack. |
| 2561 | bcs.set_start(bci_stack->pop()); |
| 2562 | } |
| 2563 | } else { |
| 2564 | if (target >= code_length) return false; |
| 2565 | // Continue scanning from the target onward. |
| 2566 | bcs.set_start(target); |
| 2567 | // Record target so we don't branch here again. |
| 2568 | visited_branches->append(bci); |
| 2569 | } |
| 2570 | break; |
| 2571 | |
| 2572 | // Check that all switch alternatives end in 'athrow' bytecodes. Since it |
| 2573 | // is difficult to determine where each switch alternative ends, parse |
| 2574 | // each switch alternative until either hit a 'return', 'athrow', or reach |
| 2575 | // the end of the method's bytecodes. This is gross but should be okay |
| 2576 | // because: |
| 2577 | // 1. tableswitch and lookupswitch byte codes in handlers for ctor explicit |
| 2578 | // constructor invocations should be rare. |
| 2579 | // 2. if each switch alternative ends in an athrow then the parsing should be |
| 2580 | // short. If there is no athrow then it is bogus code, anyway. |
| 2581 | case Bytecodes::_lookupswitch: |
| 2582 | case Bytecodes::_tableswitch: |
| 2583 | { |
| 2584 | address aligned_bcp = align_up(bcs.bcp() + 1, jintSize); |
| 2585 | u4 default_offset = Bytes::get_Java_u4(aligned_bcp) + bci; |
| 2586 | int keys, delta; |
| 2587 | if (opcode == Bytecodes::_tableswitch) { |
| 2588 | jint low = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize); |
| 2589 | jint high = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize); |
| 2590 | // This is invalid, but let the regular bytecode verifier |
| 2591 | // report this because the user will get a better error message. |
| 2592 | if (low > high) return true; |
| 2593 | keys = high - low + 1; |
| 2594 | delta = 1; |
| 2595 | } else { |
| 2596 | keys = (int)Bytes::get_Java_u4(aligned_bcp + jintSize); |
| 2597 | delta = 2; |
| 2598 | } |
| 2599 | // Invalid, let the regular bytecode verifier deal with it. |
| 2600 | if (keys < 0) return true; |
| 2601 | |
| 2602 | // Push the offset of the next bytecode onto the stack. |
| 2603 | bci_stack->push(bcs.next_bci()); |
| 2604 | |
| 2605 | // Push the switch alternatives onto the stack. |
| 2606 | for (int i = 0; i < keys; i++) { |
| 2607 | u4 target = bci + (jint)Bytes::get_Java_u4(aligned_bcp+(3+i*delta)*jintSize); |
| 2608 | if (target > code_length) return false; |
| 2609 | bci_stack->push(target); |
| 2610 | } |
| 2611 | |
| 2612 | // Start bytecode parsing for the switch at the default alternative. |
| 2613 | if (default_offset > code_length) return false; |
| 2614 | bcs.set_start(default_offset); |
| 2615 | break; |
| 2616 | } |
| 2617 | |
| 2618 | case Bytecodes::_return: |
| 2619 | return false; |
| 2620 | |
| 2621 | case Bytecodes::_athrow: |
| 2622 | { |
| 2623 | if (bci_stack->is_empty()) { |
| 2624 | if (handler_stack->is_empty()) { |
| 2625 | return true; |
| 2626 | } else { |
| 2627 | // Parse the catch handlers for try blocks containing athrow. |
| 2628 | bcs.set_start(handler_stack->pop()); |
| 2629 | } |
| 2630 | } else { |
| 2631 | // Pop a bytecode offset and starting scanning from there. |
| 2632 | bcs.set_start(bci_stack->pop()); |
| 2633 | } |
| 2634 | } |
| 2635 | break; |
| 2636 | |
| 2637 | default: |
| 2638 | ; |
| 2639 | } // end switch |
| 2640 | } // end while loop |
| 2641 | |
| 2642 | return false; |
| 2643 | } |
| 2644 | |
| 2645 | void ClassVerifier::verify_invoke_init( |
| 2646 | RawBytecodeStream* bcs, u2 ref_class_index, VerificationType ref_class_type, |
| 2647 | StackMapFrame* current_frame, u4 code_length, bool in_try_block, |
| 2648 | bool *this_uninit, const constantPoolHandle& cp, StackMapTable* stackmap_table, |
| 2649 | TRAPSJavaThread* __the_thread__) { |
| 2650 | u2 bci = bcs->bci(); |
| 2651 | VerificationType type = current_frame->pop_stack( |
| 2652 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2653 | if (type == VerificationType::uninitialized_this_type()) { |
| 2654 | // The method must be an <init> method of this class or its superclass |
| 2655 | Klass* superk = current_class()->super(); |
| 2656 | if (ref_class_type.name() != current_class()->name() && |
| 2657 | ref_class_type.name() != superk->name()) { |
| 2658 | verify_error(ErrorContext::bad_type(bci, |
| 2659 | TypeOrigin::implicit(ref_class_type), |
| 2660 | TypeOrigin::implicit(current_type())), |
| 2661 | "Bad <init> method call"); |
| 2662 | return; |
| 2663 | } |
| 2664 | |
| 2665 | // If this invokespecial call is done from inside of a TRY block then make |
| 2666 | // sure that all catch clause paths end in a throw. Otherwise, this can |
| 2667 | // result in returning an incomplete object. |
| 2668 | if (in_try_block) { |
| 2669 | ExceptionTable exhandlers(_method()); |
| 2670 | int exlength = exhandlers.length(); |
| 2671 | for(int i = 0; i < exlength; i++) { |
| 2672 | u2 start_pc = exhandlers.start_pc(i); |
| 2673 | u2 end_pc = exhandlers.end_pc(i); |
| 2674 | |
| 2675 | if (bci >= start_pc && bci < end_pc) { |
| 2676 | if (!ends_in_athrow(exhandlers.handler_pc(i))) { |
| 2677 | verify_error(ErrorContext::bad_code(bci), |
| 2678 | "Bad <init> method call from after the start of a try block"); |
| 2679 | return; |
| 2680 | } else if (log_is_enabled(Debug, verification)(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Debug))) { |
| 2681 | ResourceMark rm(THREAD__the_thread__); |
| 2682 | log_debug(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Debug>("Survived call to ends_in_athrow(): %s", |
| 2683 | current_class()->name()->as_C_string()); |
| 2684 | } |
| 2685 | } |
| 2686 | } |
| 2687 | |
| 2688 | // Check the exception handler target stackmaps with the locals from the |
| 2689 | // incoming stackmap (before initialize_object() changes them to outgoing |
| 2690 | // state). |
| 2691 | if (was_recursively_verified()) return; |
| 2692 | verify_exception_handler_targets(bci, true, current_frame, |
| 2693 | stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2694 | } // in_try_block |
| 2695 | |
| 2696 | current_frame->initialize_object(type, current_type()); |
| 2697 | *this_uninit = true; |
| 2698 | } else if (type.is_uninitialized()) { |
| 2699 | u2 new_offset = type.bci(); |
| 2700 | address new_bcp = bcs->bcp() - bci + new_offset; |
| 2701 | if (new_offset > (code_length - 3) || (*new_bcp) != Bytecodes::_new) { |
| 2702 | /* Unreachable? Stack map parsing ensures valid type and new |
| 2703 | * instructions have a valid BCI. */ |
| 2704 | verify_error(ErrorContext::bad_code(new_offset), |
| 2705 | "Expecting new instruction"); |
| 2706 | return; |
| 2707 | } |
| 2708 | u2 new_class_index = Bytes::get_Java_u2(new_bcp + 1); |
| 2709 | if (was_recursively_verified()) return; |
| 2710 | verify_cp_class_type(bci, new_class_index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2711 | |
| 2712 | // The method must be an <init> method of the indicated class |
| 2713 | VerificationType new_class_type = cp_index_to_type( |
| 2714 | new_class_index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2715 | if (!new_class_type.equals(ref_class_type)) { |
| 2716 | verify_error(ErrorContext::bad_type(bci, |
| 2717 | TypeOrigin::cp(new_class_index, new_class_type), |
| 2718 | TypeOrigin::cp(ref_class_index, ref_class_type)), |
| 2719 | "Call to wrong <init> method"); |
| 2720 | return; |
| 2721 | } |
| 2722 | // According to the VM spec, if the referent class is a superclass of the |
| 2723 | // current class, and is in a different runtime package, and the method is |
| 2724 | // protected, then the objectref must be the current class or a subclass |
| 2725 | // of the current class. |
| 2726 | VerificationType objectref_type = new_class_type; |
| 2727 | if (name_in_supers(ref_class_type.name(), current_class())) { |
| 2728 | Klass* ref_klass = load_class(ref_class_type.name(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); |
| 2729 | if (was_recursively_verified()) return; |
| 2730 | Method* m = InstanceKlass::cast(ref_klass)->uncached_lookup_method( |
| 2731 | vmSymbols::object_initializer_name(), |
| 2732 | cp->signature_ref_at(bcs->get_index_u2()), |
| 2733 | Klass::OverpassLookupMode::find); |
| 2734 | // Do nothing if method is not found. Let resolution detect the error. |
| 2735 | if (m != NULL__null) { |
| 2736 | InstanceKlass* mh = m->method_holder(); |
| 2737 | if (m->is_protected() && !mh->is_same_class_package(_klass)) { |
| 2738 | bool assignable = current_type().is_assignable_from( |
| 2739 | objectref_type, this, true, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2740 | if (!assignable) { |
| 2741 | verify_error(ErrorContext::bad_type(bci, |
| 2742 | TypeOrigin::cp(new_class_index, objectref_type), |
| 2743 | TypeOrigin::implicit(current_type())), |
| 2744 | "Bad access to protected <init> method"); |
| 2745 | return; |
| 2746 | } |
| 2747 | } |
| 2748 | } |
| 2749 | } |
| 2750 | // Check the exception handler target stackmaps with the locals from the |
| 2751 | // incoming stackmap (before initialize_object() changes them to outgoing |
| 2752 | // state). |
| 2753 | if (in_try_block) { |
| 2754 | if (was_recursively_verified()) return; |
| 2755 | verify_exception_handler_targets(bci, *this_uninit, current_frame, |
| 2756 | stackmap_table, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2757 | } |
| 2758 | current_frame->initialize_object(type, new_class_type); |
| 2759 | } else { |
| 2760 | verify_error(ErrorContext::bad_type(bci, current_frame->stack_top_ctx()), |
| 2761 | "Bad operand type when invoking <init>"); |
| 2762 | return; |
| 2763 | } |
| 2764 | } |
| 2765 | |
| 2766 | bool ClassVerifier::is_same_or_direct_interface( |
| 2767 | InstanceKlass* klass, |
| 2768 | VerificationType klass_type, |
| 2769 | VerificationType ref_class_type) { |
| 2770 | if (ref_class_type.equals(klass_type)) return true; |
| 2771 | Array<InstanceKlass*>* local_interfaces = klass->local_interfaces(); |
| 2772 | if (local_interfaces != NULL__null) { |
| 2773 | for (int x = 0; x < local_interfaces->length(); x++) { |
| 2774 | InstanceKlass* k = local_interfaces->at(x); |
| 2775 | assert (k != NULL && k->is_interface(), "invalid interface")do { if (!(k != __null && k->is_interface())) { (* g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2775, "assert(" "k != __null && k->is_interface()" ") failed", "invalid interface"); ::breakpoint(); } } while ( 0); |
| 2776 | if (ref_class_type.equals(VerificationType::reference_type(k->name()))) { |
| 2777 | return true; |
| 2778 | } |
| 2779 | } |
| 2780 | } |
| 2781 | return false; |
| 2782 | } |
| 2783 | |
| 2784 | void ClassVerifier::verify_invoke_instructions( |
| 2785 | RawBytecodeStream* bcs, u4 code_length, StackMapFrame* current_frame, |
| 2786 | bool in_try_block, bool *this_uninit, VerificationType return_type, |
| 2787 | const constantPoolHandle& cp, StackMapTable* stackmap_table, TRAPSJavaThread* __the_thread__) { |
| 2788 | // Make sure the constant pool item is the right type |
| 2789 | u2 index = bcs->get_index_u2(); |
| 2790 | Bytecodes::Code opcode = bcs->raw_code(); |
| 2791 | unsigned int types = 0; |
| 2792 | switch (opcode) { |
| 2793 | case Bytecodes::_invokeinterface: |
| 2794 | types = 1 << JVM_CONSTANT_InterfaceMethodref; |
| 2795 | break; |
| 2796 | case Bytecodes::_invokedynamic: |
| 2797 | types = 1 << JVM_CONSTANT_InvokeDynamic; |
| 2798 | break; |
| 2799 | case Bytecodes::_invokespecial: |
| 2800 | case Bytecodes::_invokestatic: |
| 2801 | types = (_klass->major_version() < STATIC_METHOD_IN_INTERFACE_MAJOR_VERSION52) ? |
| 2802 | (1 << JVM_CONSTANT_Methodref) : |
| 2803 | ((1 << JVM_CONSTANT_InterfaceMethodref) | (1 << JVM_CONSTANT_Methodref)); |
| 2804 | break; |
| 2805 | default: |
| 2806 | types = 1 << JVM_CONSTANT_Methodref; |
| 2807 | } |
| 2808 | verify_cp_type(bcs->bci(), index, cp, types, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2809 | |
| 2810 | // Get method name and signature |
| 2811 | Symbol* method_name = cp->name_ref_at(index); |
| 2812 | Symbol* method_sig = cp->signature_ref_at(index); |
| 2813 | |
| 2814 | // Method signature was checked in ClassFileParser. |
| 2815 | assert(SignatureVerifier::is_valid_method_signature(method_sig),do { if (!(SignatureVerifier::is_valid_method_signature(method_sig ))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2816, "assert(" "SignatureVerifier::is_valid_method_signature(method_sig)" ") failed", "Invalid method signature"); ::breakpoint(); } } while (0) |
| 2816 | "Invalid method signature")do { if (!(SignatureVerifier::is_valid_method_signature(method_sig ))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2816, "assert(" "SignatureVerifier::is_valid_method_signature(method_sig)" ") failed", "Invalid method signature"); ::breakpoint(); } } while (0); |
| 2817 | |
| 2818 | // Get referenced class type |
| 2819 | VerificationType ref_class_type; |
| 2820 | if (opcode == Bytecodes::_invokedynamic) { |
| 2821 | if (_klass->major_version() < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
| 2822 | class_format_error( |
| 2823 | "invokedynamic instructions not supported by this class file version (%d), class %s", |
| 2824 | _klass->major_version(), _klass->external_name()); |
| 2825 | return; |
| 2826 | } |
| 2827 | } else { |
| 2828 | ref_class_type = cp_ref_index_to_type(index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2829 | } |
| 2830 | |
| 2831 | assert(sizeof(VerificationType) == sizeof(uintptr_t),do { if (!(sizeof(VerificationType) == sizeof(uintptr_t))) { ( *g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2832, "assert(" "sizeof(VerificationType) == sizeof(uintptr_t)" ") failed", "buffer type must match VerificationType size"); ::breakpoint(); } } while (0) |
| 2832 | "buffer type must match VerificationType size")do { if (!(sizeof(VerificationType) == sizeof(uintptr_t))) { ( *g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2832, "assert(" "sizeof(VerificationType) == sizeof(uintptr_t)" ") failed", "buffer type must match VerificationType size"); ::breakpoint(); } } while (0); |
| 2833 | |
| 2834 | // Get the UTF8 index for this signature. |
| 2835 | int sig_index = cp->signature_ref_index_at(cp->name_and_type_ref_index_at(index)); |
| 2836 | |
| 2837 | // Get the signature's verification types. |
| 2838 | sig_as_verification_types* mth_sig_verif_types; |
| 2839 | sig_as_verification_types** mth_sig_verif_types_ptr = method_signatures_table()->get(sig_index); |
| 2840 | if (mth_sig_verif_types_ptr != NULL__null) { |
| 2841 | // Found the entry for the signature's verification types in the hash table. |
| 2842 | mth_sig_verif_types = *mth_sig_verif_types_ptr; |
| 2843 | assert(mth_sig_verif_types != NULL, "Unexpected NULL sig_as_verification_types value")do { if (!(mth_sig_verif_types != __null)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2843, "assert(" "mth_sig_verif_types != __null" ") failed", "Unexpected NULL sig_as_verification_types value"); ::breakpoint (); } } while (0); |
| 2844 | } else { |
| 2845 | // Not found, add the entry to the table. |
| 2846 | GrowableArray<VerificationType>* verif_types = new GrowableArray<VerificationType>(10); |
| 2847 | mth_sig_verif_types = new sig_as_verification_types(verif_types); |
| 2848 | create_method_sig_entry(mth_sig_verif_types, sig_index); |
| 2849 | } |
| 2850 | |
| 2851 | // Get the number of arguments for this signature. |
| 2852 | int nargs = mth_sig_verif_types->num_args(); |
| 2853 | |
| 2854 | // Check instruction operands |
| 2855 | u2 bci = bcs->bci(); |
| 2856 | if (opcode == Bytecodes::_invokeinterface) { |
| 2857 | address bcp = bcs->bcp(); |
| 2858 | // 4905268: count operand in invokeinterface should be nargs+1, not nargs. |
| 2859 | // JSR202 spec: The count operand of an invokeinterface instruction is valid if it is |
| 2860 | // the difference between the size of the operand stack before and after the instruction |
| 2861 | // executes. |
| 2862 | if (*(bcp+3) != (nargs+1)) { |
| 2863 | verify_error(ErrorContext::bad_code(bci), |
| 2864 | "Inconsistent args count operand in invokeinterface"); |
| 2865 | return; |
| 2866 | } |
| 2867 | if (*(bcp+4) != 0) { |
| 2868 | verify_error(ErrorContext::bad_code(bci), |
| 2869 | "Fourth operand byte of invokeinterface must be zero"); |
| 2870 | return; |
| 2871 | } |
| 2872 | } |
| 2873 | |
| 2874 | if (opcode == Bytecodes::_invokedynamic) { |
| 2875 | address bcp = bcs->bcp(); |
| 2876 | if (*(bcp+3) != 0 || *(bcp+4) != 0) { |
| 2877 | verify_error(ErrorContext::bad_code(bci), |
| 2878 | "Third and fourth operand bytes of invokedynamic must be zero"); |
| 2879 | return; |
| 2880 | } |
| 2881 | } |
| 2882 | |
| 2883 | if (method_name->char_at(0) == JVM_SIGNATURE_SPECIAL) { |
| 2884 | // Make sure <init> can only be invoked by invokespecial |
| 2885 | if (opcode != Bytecodes::_invokespecial || |
| 2886 | method_name != vmSymbols::object_initializer_name()) { |
| 2887 | verify_error(ErrorContext::bad_code(bci), |
| 2888 | "Illegal call to internal method"); |
| 2889 | return; |
| 2890 | } |
| 2891 | } else if (opcode == Bytecodes::_invokespecial |
| 2892 | && !is_same_or_direct_interface(current_class(), current_type(), ref_class_type) |
| 2893 | && !ref_class_type.equals(VerificationType::reference_type( |
| 2894 | current_class()->super()->name()))) { |
| 2895 | bool subtype = false; |
| 2896 | bool have_imr_indirect = cp->tag_at(index).value() == JVM_CONSTANT_InterfaceMethodref; |
| 2897 | subtype = ref_class_type.is_assignable_from( |
| 2898 | current_type(), this, false, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2899 | if (!subtype) { |
| 2900 | verify_error(ErrorContext::bad_code(bci), |
| 2901 | "Bad invokespecial instruction: " |
| 2902 | "current class isn't assignable to reference class."); |
| 2903 | return; |
| 2904 | } else if (have_imr_indirect) { |
| 2905 | verify_error(ErrorContext::bad_code(bci), |
| 2906 | "Bad invokespecial instruction: " |
| 2907 | "interface method reference is in an indirect superinterface."); |
| 2908 | return; |
| 2909 | } |
| 2910 | |
| 2911 | } |
| 2912 | |
| 2913 | // Get the verification types for the method's arguments. |
| 2914 | GrowableArray<VerificationType>* sig_verif_types = mth_sig_verif_types->sig_verif_types(); |
| 2915 | assert(sig_verif_types != NULL, "Missing signature's array of verification types")do { if (!(sig_verif_types != __null)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2915, "assert(" "sig_verif_types != __null" ") failed", "Missing signature's array of verification types" ); ::breakpoint(); } } while (0); |
| 2916 | // Match method descriptor with operand stack |
| 2917 | // The arguments are on the stack in descending order. |
| 2918 | for (int i = nargs - 1; i >= 0; i--) { // Run backwards |
| 2919 | current_frame->pop_stack(sig_verif_types->at(i), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2920 | } |
| 2921 | |
| 2922 | // Check objectref on operand stack |
| 2923 | if (opcode != Bytecodes::_invokestatic && |
| 2924 | opcode != Bytecodes::_invokedynamic) { |
| 2925 | if (method_name == vmSymbols::object_initializer_name()) { // <init> method |
| 2926 | verify_invoke_init(bcs, index, ref_class_type, current_frame, |
| 2927 | code_length, in_try_block, this_uninit, cp, stackmap_table, |
| 2928 | CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2929 | if (was_recursively_verified()) return; |
| 2930 | } else { // other methods |
| 2931 | // Ensures that target class is assignable to method class. |
| 2932 | if (opcode == Bytecodes::_invokespecial) { |
| 2933 | current_frame->pop_stack(current_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2934 | } else if (opcode == Bytecodes::_invokevirtual) { |
| 2935 | VerificationType stack_object_type = |
| 2936 | current_frame->pop_stack(ref_class_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2937 | if (current_type() != stack_object_type) { |
| 2938 | if (was_recursively_verified()) return; |
| 2939 | assert(cp->cache() == NULL, "not rewritten yet")do { if (!(cp->cache() == __null)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2939, "assert(" "cp->cache() == __null" ") failed", "not rewritten yet" ); ::breakpoint(); } } while (0); |
| 2940 | Symbol* ref_class_name = |
| 2941 | cp->klass_name_at(cp->klass_ref_index_at(index)); |
| 2942 | // See the comments in verify_field_instructions() for |
| 2943 | // the rationale behind this. |
| 2944 | if (name_in_supers(ref_class_name, current_class())) { |
| 2945 | Klass* ref_class = load_class(ref_class_name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); |
| 2946 | if (is_protected_access( |
| 2947 | _klass, ref_class, method_name, method_sig, true)) { |
| 2948 | // It's protected access, check if stack object is |
| 2949 | // assignable to current class. |
| 2950 | bool is_assignable = current_type().is_assignable_from( |
| 2951 | stack_object_type, this, true, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2952 | if (!is_assignable) { |
| 2953 | if (ref_class_type.name() == vmSymbols::java_lang_Object() |
| 2954 | && stack_object_type.is_array() |
| 2955 | && method_name == vmSymbols::clone_name()) { |
| 2956 | // Special case: arrays pretend to implement public Object |
| 2957 | // clone(). |
| 2958 | } else { |
| 2959 | verify_error(ErrorContext::bad_type(bci, |
| 2960 | current_frame->stack_top_ctx(), |
| 2961 | TypeOrigin::implicit(current_type())), |
| 2962 | "Bad access to protected data in invokevirtual"); |
| 2963 | return; |
| 2964 | } |
| 2965 | } |
| 2966 | } |
| 2967 | } |
| 2968 | } |
| 2969 | } else { |
| 2970 | assert(opcode == Bytecodes::_invokeinterface, "Unexpected opcode encountered")do { if (!(opcode == Bytecodes::_invokeinterface)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2970, "assert(" "opcode == Bytecodes::_invokeinterface" ") failed" , "Unexpected opcode encountered"); ::breakpoint(); } } while (0); |
| 2971 | current_frame->pop_stack(ref_class_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2972 | } |
| 2973 | } |
| 2974 | } |
| 2975 | // Push the result type. |
| 2976 | int sig_verif_types_len = sig_verif_types->length(); |
| 2977 | if (sig_verif_types_len > nargs) { // There's a return type |
| 2978 | if (method_name == vmSymbols::object_initializer_name()) { |
| 2979 | // <init> method must have a void return type |
| 2980 | /* Unreachable? Class file parser verifies that methods with '<' have |
| 2981 | * void return */ |
| 2982 | verify_error(ErrorContext::bad_code(bci), |
| 2983 | "Return type must be void in <init> method"); |
| 2984 | return; |
| 2985 | } |
| 2986 | |
| 2987 | assert(sig_verif_types_len <= nargs + 2,do { if (!(sig_verif_types_len <= nargs + 2)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2988, "assert(" "sig_verif_types_len <= nargs + 2" ") failed" , "Signature verification types array return type is bogus"); ::breakpoint(); } } while (0) |
| 2988 | "Signature verification types array return type is bogus")do { if (!(sig_verif_types_len <= nargs + 2)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2988, "assert(" "sig_verif_types_len <= nargs + 2" ") failed" , "Signature verification types array return type is bogus"); ::breakpoint(); } } while (0); |
| 2989 | for (int i = nargs; i < sig_verif_types_len; i++) { |
| 2990 | assert(i == nargs || sig_verif_types->at(i).is_long2() ||do { if (!(i == nargs || sig_verif_types->at(i).is_long2() || sig_verif_types->at(i).is_double2())) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2991, "assert(" "i == nargs || sig_verif_types->at(i).is_long2() || sig_verif_types->at(i).is_double2()" ") failed", "Unexpected return verificationType"); ::breakpoint (); } } while (0) |
| 2991 | sig_verif_types->at(i).is_double2(), "Unexpected return verificationType")do { if (!(i == nargs || sig_verif_types->at(i).is_long2() || sig_verif_types->at(i).is_double2())) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 2991, "assert(" "i == nargs || sig_verif_types->at(i).is_long2() || sig_verif_types->at(i).is_double2()" ") failed", "Unexpected return verificationType"); ::breakpoint (); } } while (0); |
| 2992 | current_frame->push_stack(sig_verif_types->at(i), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 2993 | } |
| 2994 | } |
| 2995 | } |
| 2996 | |
| 2997 | VerificationType ClassVerifier::get_newarray_type( |
| 2998 | u2 index, u2 bci, TRAPSJavaThread* __the_thread__) { |
| 2999 | const char* from_bt[] = { |
| 3000 | NULL__null, NULL__null, NULL__null, NULL__null, "[Z", "[C", "[F", "[D", "[B", "[S", "[I", "[J", |
| 3001 | }; |
| 3002 | if (index < T_BOOLEAN || index > T_LONG) { |
| 3003 | verify_error(ErrorContext::bad_code(bci), "Illegal newarray instruction"); |
| 3004 | return VerificationType::bogus_type(); |
| 3005 | } |
| 3006 | |
| 3007 | // from_bt[index] contains the array signature which has a length of 2 |
| 3008 | Symbol* sig = create_temporary_symbol(from_bt[index], 2); |
| 3009 | return VerificationType::reference_type(sig); |
| 3010 | } |
| 3011 | |
| 3012 | void ClassVerifier::verify_anewarray( |
| 3013 | u2 bci, u2 index, const constantPoolHandle& cp, |
| 3014 | StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3015 | verify_cp_class_type(bci, index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3016 | current_frame->pop_stack( |
| 3017 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3018 | |
| 3019 | if (was_recursively_verified()) return; |
| 3020 | VerificationType component_type = |
| 3021 | cp_index_to_type(index, cp, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3022 | int length; |
| 3023 | char* arr_sig_str; |
| 3024 | if (component_type.is_array()) { // it's an array |
| 3025 | const char* component_name = component_type.name()->as_utf8(); |
| 3026 | // Check for more than MAX_ARRAY_DIMENSIONS |
| 3027 | length = (int)strlen(component_name); |
| 3028 | if (length > MAX_ARRAY_DIMENSIONS255 && |
| 3029 | component_name[MAX_ARRAY_DIMENSIONS255 - 1] == JVM_SIGNATURE_ARRAY) { |
| 3030 | verify_error(ErrorContext::bad_code(bci), |
| 3031 | "Illegal anewarray instruction, array has more than 255 dimensions"); |
| 3032 | } |
| 3033 | // add one dimension to component |
| 3034 | length++; |
| 3035 | arr_sig_str = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, length + 1)(char*) resource_allocate_bytes(__the_thread__, (length + 1) * sizeof(char)); |
| 3036 | int n = os::snprintf(arr_sig_str, length + 1, "%c%s", |
| 3037 | JVM_SIGNATURE_ARRAY, component_name); |
| 3038 | assert(n == length, "Unexpected number of characters in string")do { if (!(n == length)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 3038, "assert(" "n == length" ") failed", "Unexpected number of characters in string" ); ::breakpoint(); } } while (0); |
| 3039 | } else { // it's an object or interface |
| 3040 | const char* component_name = component_type.name()->as_utf8(); |
| 3041 | // add one dimension to component with 'L' prepended and ';' postpended. |
| 3042 | length = (int)strlen(component_name) + 3; |
| 3043 | arr_sig_str = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, length + 1)(char*) resource_allocate_bytes(__the_thread__, (length + 1) * sizeof(char)); |
| 3044 | int n = os::snprintf(arr_sig_str, length + 1, "%c%c%s;", |
| 3045 | JVM_SIGNATURE_ARRAY, JVM_SIGNATURE_CLASS, component_name); |
| 3046 | assert(n == length, "Unexpected number of characters in string")do { if (!(n == length)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/verifier.cpp" , 3046, "assert(" "n == length" ") failed", "Unexpected number of characters in string" ); ::breakpoint(); } } while (0); |
| 3047 | } |
| 3048 | Symbol* arr_sig = create_temporary_symbol(arr_sig_str, length); |
| 3049 | VerificationType new_array_type = VerificationType::reference_type(arr_sig); |
| 3050 | current_frame->push_stack(new_array_type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3051 | } |
| 3052 | |
| 3053 | void ClassVerifier::verify_iload(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3054 | current_frame->get_local( |
| 3055 | index, VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3056 | current_frame->push_stack( |
| 3057 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3058 | } |
| 3059 | |
| 3060 | void ClassVerifier::verify_lload(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3061 | current_frame->get_local_2( |
| 3062 | index, VerificationType::long_type(), |
| 3063 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3064 | current_frame->push_stack_2( |
| 3065 | VerificationType::long_type(), |
| 3066 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3067 | } |
| 3068 | |
| 3069 | void ClassVerifier::verify_fload(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3070 | current_frame->get_local( |
| 3071 | index, VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3072 | current_frame->push_stack( |
| 3073 | VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3074 | } |
| 3075 | |
| 3076 | void ClassVerifier::verify_dload(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3077 | current_frame->get_local_2( |
| 3078 | index, VerificationType::double_type(), |
| 3079 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3080 | current_frame->push_stack_2( |
| 3081 | VerificationType::double_type(), |
| 3082 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3083 | } |
| 3084 | |
| 3085 | void ClassVerifier::verify_aload(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3086 | VerificationType type = current_frame->get_local( |
| 3087 | index, VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3088 | current_frame->push_stack(type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3089 | } |
| 3090 | |
| 3091 | void ClassVerifier::verify_istore(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3092 | current_frame->pop_stack( |
| 3093 | VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3094 | current_frame->set_local( |
| 3095 | index, VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3096 | } |
| 3097 | |
| 3098 | void ClassVerifier::verify_lstore(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3099 | current_frame->pop_stack_2( |
| 3100 | VerificationType::long2_type(), |
| 3101 | VerificationType::long_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3102 | current_frame->set_local_2( |
| 3103 | index, VerificationType::long_type(), |
| 3104 | VerificationType::long2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3105 | } |
| 3106 | |
| 3107 | void ClassVerifier::verify_fstore(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3108 | current_frame->pop_stack(VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3109 | current_frame->set_local( |
| 3110 | index, VerificationType::float_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3111 | } |
| 3112 | |
| 3113 | void ClassVerifier::verify_dstore(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3114 | current_frame->pop_stack_2( |
| 3115 | VerificationType::double2_type(), |
| 3116 | VerificationType::double_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3117 | current_frame->set_local_2( |
| 3118 | index, VerificationType::double_type(), |
| 3119 | VerificationType::double2_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3120 | } |
| 3121 | |
| 3122 | void ClassVerifier::verify_astore(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3123 | VerificationType type = current_frame->pop_stack( |
| 3124 | VerificationType::reference_check(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3125 | current_frame->set_local(index, type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3126 | } |
| 3127 | |
| 3128 | void ClassVerifier::verify_iinc(u2 index, StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3129 | VerificationType type = current_frame->get_local( |
| 3130 | index, VerificationType::integer_type(), CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3131 | current_frame->set_local(index, type, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3132 | } |
| 3133 | |
| 3134 | void ClassVerifier::verify_return_value( |
| 3135 | VerificationType return_type, VerificationType type, u2 bci, |
| 3136 | StackMapFrame* current_frame, TRAPSJavaThread* __the_thread__) { |
| 3137 | if (return_type == VerificationType::bogus_type()) { |
| 3138 | verify_error(ErrorContext::bad_type(bci, |
| 3139 | current_frame->stack_top_ctx(), TypeOrigin::signature(return_type)), |
| 3140 | "Method does not expect a return value"); |
| 3141 | return; |
| 3142 | } |
| 3143 | bool match = return_type.is_assignable_from(type, this, false, CHECK_VERIFY(this)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception ())) return ; (void)(0); if ((this)->has_error()) return; ( (void)0); |
| 3144 | if (!match) { |
| 3145 | verify_error(ErrorContext::bad_type(bci, |
| 3146 | current_frame->stack_top_ctx(), TypeOrigin::signature(return_type)), |
| 3147 | "Bad return type"); |
| 3148 | return; |
| 3149 | } |
| 3150 | } |
| 3151 | |
| 3152 | // The verifier creates symbols which are substrings of Symbols. |
| 3153 | // These are stored in the verifier until the end of verification so that |
| 3154 | // they can be reference counted. |
| 3155 | Symbol* ClassVerifier::create_temporary_symbol(const char *name, int length) { |
| 3156 | // Quick deduplication check |
| 3157 | if (_previous_symbol != NULL__null && _previous_symbol->equals(name, length)) { |
| 3158 | return _previous_symbol; |
| 3159 | } |
| 3160 | Symbol* sym = SymbolTable::new_symbol(name, length); |
| 3161 | if (!sym->is_permanent()) { |
| 3162 | if (_symbols == NULL__null) { |
| 3163 | _symbols = new GrowableArray<Symbol*>(50, 0, NULL__null); |
| 3164 | } |
| 3165 | _symbols->push(sym); |
| 3166 | } |
| 3167 | _previous_symbol = sym; |
| 3168 | return sym; |
| 3169 | } |