Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/ci/ciEnv.cpp
src/share/vm/ci/ciEnv.cpp
- changeset 10015
- eb7ce841ccec
- parent 9931
- fd44df5e3bc3
- parent 9942
- eddd586d1a4c
equal
deleted
inserted
replaced
| 9934:2251ba078bec | 10015:eb7ce841ccec |
|---|---|
| 137 _ArrayIndexOutOfBoundsException_instance = NULL; | 137 _ArrayIndexOutOfBoundsException_instance = NULL; |
| 138 _ArrayStoreException_instance = NULL; | 138 _ArrayStoreException_instance = NULL; |
| 139 _ClassCastException_instance = NULL; | 139 _ClassCastException_instance = NULL; |
| 140 _the_null_string = NULL; | 140 _the_null_string = NULL; |
| 141 _the_min_jint_string = NULL; | 141 _the_min_jint_string = NULL; |
| 142 | |
| 143 _jvmti_can_hotswap_or_post_breakpoint = false; | |
| 144 _jvmti_can_access_local_variables = false; | |
| 145 _jvmti_can_post_on_exceptions = false; | |
| 146 _jvmti_can_pop_frame = false; | |
| 142 } | 147 } |
| 143 | 148 |
| 144 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { | 149 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { |
| 145 ASSERT_IN_VM; | 150 ASSERT_IN_VM; |
| 146 | 151 |
| 187 _ArrayIndexOutOfBoundsException_instance = NULL; | 192 _ArrayIndexOutOfBoundsException_instance = NULL; |
| 188 _ArrayStoreException_instance = NULL; | 193 _ArrayStoreException_instance = NULL; |
| 189 _ClassCastException_instance = NULL; | 194 _ClassCastException_instance = NULL; |
| 190 _the_null_string = NULL; | 195 _the_null_string = NULL; |
| 191 _the_min_jint_string = NULL; | 196 _the_min_jint_string = NULL; |
| 197 | |
| 198 _jvmti_can_hotswap_or_post_breakpoint = false; | |
| 199 _jvmti_can_access_local_variables = false; | |
| 200 _jvmti_can_post_on_exceptions = false; | |
| 201 _jvmti_can_pop_frame = false; | |
| 192 } | 202 } |
| 193 | 203 |
| 194 ciEnv::~ciEnv() { | 204 ciEnv::~ciEnv() { |
| 195 CompilerThread* current_thread = CompilerThread::current(); | 205 CompilerThread* current_thread = CompilerThread::current(); |
| 196 _factory->remove_symbols(); | 206 _factory->remove_symbols(); |
| 206 // Get Jvmti capabilities under lock to get consistant values. | 216 // Get Jvmti capabilities under lock to get consistant values. |
| 207 MutexLocker mu(JvmtiThreadState_lock); | 217 MutexLocker mu(JvmtiThreadState_lock); |
| 208 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); | 218 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
| 209 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); | 219 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
| 210 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); | 220 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); |
| 221 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); | |
| 222 } | |
| 223 | |
| 224 bool ciEnv::should_retain_local_variables() const { | |
| 225 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame; | |
| 226 } | |
| 227 | |
| 228 bool ciEnv::jvmti_state_changed() const { | |
| 229 if (!_jvmti_can_access_local_variables && | |
| 230 JvmtiExport::can_access_local_variables()) { | |
| 231 return true; | |
| 232 } | |
| 233 if (!_jvmti_can_hotswap_or_post_breakpoint && | |
| 234 JvmtiExport::can_hotswap_or_post_breakpoint()) { | |
| 235 return true; | |
| 236 } | |
| 237 if (!_jvmti_can_post_on_exceptions && | |
| 238 JvmtiExport::can_post_on_exceptions()) { | |
| 239 return true; | |
| 240 } | |
| 241 if (!_jvmti_can_pop_frame && | |
| 242 JvmtiExport::can_pop_frame()) { | |
| 243 return true; | |
| 244 } | |
| 245 return false; | |
| 211 } | 246 } |
| 212 | 247 |
| 213 // ------------------------------------------------------------------ | 248 // ------------------------------------------------------------------ |
| 214 // Cache DTrace flags | 249 // Cache DTrace flags |
| 215 void ciEnv::cache_dtrace_flags() { | 250 void ciEnv::cache_dtrace_flags() { |
| 951 // No safepoints are allowed. Otherwise, class redefinition can occur in between. | 986 // No safepoints are allowed. Otherwise, class redefinition can occur in between. |
| 952 MutexLocker ml(Compile_lock); | 987 MutexLocker ml(Compile_lock); |
| 953 No_Safepoint_Verifier nsv; | 988 No_Safepoint_Verifier nsv; |
| 954 | 989 |
| 955 // Change in Jvmti state may invalidate compilation. | 990 // Change in Jvmti state may invalidate compilation. |
| 956 if (!failing() && | 991 if (!failing() && jvmti_state_changed()) { |
| 957 ( (!jvmti_can_hotswap_or_post_breakpoint() && | |
| 958 JvmtiExport::can_hotswap_or_post_breakpoint()) || | |
| 959 (!jvmti_can_access_local_variables() && | |
| 960 JvmtiExport::can_access_local_variables()) || | |
| 961 (!jvmti_can_post_on_exceptions() && | |
| 962 JvmtiExport::can_post_on_exceptions()) )) { | |
| 963 record_failure("Jvmti state change invalidated dependencies"); | 992 record_failure("Jvmti state change invalidated dependencies"); |
| 964 } | 993 } |
| 965 | 994 |
| 966 // Change in DTrace flags may invalidate compilation. | 995 // Change in DTrace flags may invalidate compilation. |
| 967 if (!failing() && | 996 if (!failing() && |
