143 int signature_len = Bytes::get_Java_u2((address)klass_name + klass_len + 2 + method_name_len);
144 int full_len = 2 + klass_len + 2 + method_name_len + 2 + signature_len;
145 if (!klass_matched || memcmp(_name, meta_name, full_len) != 0) { // Does not match?
146 Thread* thread = Thread::current();
147 const char* method_name = klass_name + klass_len;
148 m = AOTCodeHeap::find_method(k, thread, method_name);
149 }
150 meta = ((intptr_t)m) | 1;
151 *entry = (Metadata*)meta; // Should be atomic on x64
152 return (Metadata*)m;
153 }
154 }
155 ShouldNotReachHere(); return NULL;
156 }
157
158 void AOTCompiledMethod::do_unloading(bool unloading_occurred) {
159 unload_nmethod_caches(unloading_occurred);
160 }
161
162 bool AOTCompiledMethod::make_not_entrant_helper(int new_state) {
163 // Make sure the method is not flushed in case of a safepoint in code below.
164 methodHandle the_method(method());
165 NoSafepointVerifier nsv;
166
167 {
168 // Enter critical section. Does not block for safepoint.
169 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
170
171 if (*_state_adr == new_state) {
172 // another thread already performed this transition so nothing
173 // to do, but return false to indicate this.
174 return false;
175 }
176
177 // Change state
178 OrderAccess::storestore();
179 *_state_adr = new_state;
180
181 // Log the transition once
182 log_state_change();
183
184 #ifdef TIERED
191 // Remove AOTCompiledMethod from method.
192 if (method() != NULL) {
193 method()->unlink_code(this);
194 }
195 } // leave critical region under CompiledMethod_lock
196
197
198 if (TraceCreateZombies) {
199 ResourceMark m;
200 const char *new_state_str = (new_state == not_entrant) ? "not entrant" : "not used";
201 tty->print_cr("aot method <" INTPTR_FORMAT "> %s code made %s", p2i(this), this->method() ? this->method()->name_and_sig_as_C_string() : "null", new_state_str);
202 }
203
204 return true;
205 }
206
207 #ifdef TIERED
208 bool AOTCompiledMethod::make_entrant() {
209 assert(!method()->is_old(), "reviving evolved method!");
210
211 // Make sure the method is not flushed in case of a safepoint in code below.
212 methodHandle the_method(method());
213 NoSafepointVerifier nsv;
214
215 {
216 // Enter critical section. Does not block for safepoint.
217 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
218
219 if (*_state_adr == in_use || *_state_adr == not_entrant) {
220 // another thread already performed this transition so nothing
221 // to do, but return false to indicate this.
222 return false;
223 }
224
225 // Change state
226 OrderAccess::storestore();
227 *_state_adr = in_use;
228
229 // Log the transition once
230 log_state_change();
231 } // leave critical region under CompiledMethod_lock
232
233
234 if (TraceCreateZombies) {
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143 int signature_len = Bytes::get_Java_u2((address)klass_name + klass_len + 2 + method_name_len);
144 int full_len = 2 + klass_len + 2 + method_name_len + 2 + signature_len;
145 if (!klass_matched || memcmp(_name, meta_name, full_len) != 0) { // Does not match?
146 Thread* thread = Thread::current();
147 const char* method_name = klass_name + klass_len;
148 m = AOTCodeHeap::find_method(k, thread, method_name);
149 }
150 meta = ((intptr_t)m) | 1;
151 *entry = (Metadata*)meta; // Should be atomic on x64
152 return (Metadata*)m;
153 }
154 }
155 ShouldNotReachHere(); return NULL;
156 }
157
158 void AOTCompiledMethod::do_unloading(bool unloading_occurred) {
159 unload_nmethod_caches(unloading_occurred);
160 }
161
162 bool AOTCompiledMethod::make_not_entrant_helper(int new_state) {
163 NoSafepointVerifier nsv;
164
165 {
166 // Enter critical section. Does not block for safepoint.
167 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
168
169 if (*_state_adr == new_state) {
170 // another thread already performed this transition so nothing
171 // to do, but return false to indicate this.
172 return false;
173 }
174
175 // Change state
176 OrderAccess::storestore();
177 *_state_adr = new_state;
178
179 // Log the transition once
180 log_state_change();
181
182 #ifdef TIERED
189 // Remove AOTCompiledMethod from method.
190 if (method() != NULL) {
191 method()->unlink_code(this);
192 }
193 } // leave critical region under CompiledMethod_lock
194
195
196 if (TraceCreateZombies) {
197 ResourceMark m;
198 const char *new_state_str = (new_state == not_entrant) ? "not entrant" : "not used";
199 tty->print_cr("aot method <" INTPTR_FORMAT "> %s code made %s", p2i(this), this->method() ? this->method()->name_and_sig_as_C_string() : "null", new_state_str);
200 }
201
202 return true;
203 }
204
205 #ifdef TIERED
206 bool AOTCompiledMethod::make_entrant() {
207 assert(!method()->is_old(), "reviving evolved method!");
208
209 NoSafepointVerifier nsv;
210 {
211 // Enter critical section. Does not block for safepoint.
212 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
213
214 if (*_state_adr == in_use || *_state_adr == not_entrant) {
215 // another thread already performed this transition so nothing
216 // to do, but return false to indicate this.
217 return false;
218 }
219
220 // Change state
221 OrderAccess::storestore();
222 *_state_adr = in_use;
223
224 // Log the transition once
225 log_state_change();
226 } // leave critical region under CompiledMethod_lock
227
228
229 if (TraceCreateZombies) {
|