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comparison src/share/vm/c1x/c1x_CodeInstaller.cpp @ 1938:1aa5b22a7716

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Support for custom stack area (needed for deoptimization).
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Mon, 27 Dec 2010 14:22:55 +0100
parents 4853c5cad3aa
children 79d04223b8a5
comparison
equal deleted inserted replaced
1937:4853c5cad3aa 1938:1aa5b22a7716
150 ShouldNotReachHere(); 150 ShouldNotReachHere();
151 } 151 }
152 } 152 }
153 153
154 // constructor used to create a method 154 // constructor used to create a method
155 CodeInstaller::CodeInstaller(oop target_method) { 155 CodeInstaller::CodeInstaller(Handle target_method) {
156 ciMethod *ciMethodObject = NULL; 156 ciMethod *ciMethodObject = NULL;
157 { 157 {
158 No_Safepoint_Verifier no_safepoint; 158 No_Safepoint_Verifier no_safepoint;
159 _env = CURRENT_ENV; 159 _env = CURRENT_ENV;
160 160
173 initialize_buffer(buffer); 173 initialize_buffer(buffer);
174 process_exception_handlers(); 174 process_exception_handlers();
175 175
176 int stack_slots = (_frame_size / HeapWordSize) + 2; // conversion to words, need to add two slots for ret address and frame pointer 176 int stack_slots = (_frame_size / HeapWordSize) + 2; // conversion to words, need to add two slots for ret address and frame pointer
177 ThreadToNativeFromVM t((JavaThread*) Thread::current()); 177 ThreadToNativeFromVM t((JavaThread*) Thread::current());
178 _env->register_method(ciMethodObject, -1, &_offsets, 0, &buffer, stack_slots, _debug_recorder->_oopmaps, &_exception_handler_table, 178 _env->register_method(ciMethodObject, -1, &_offsets, _custom_stack_area_offset, &buffer, stack_slots, _debug_recorder->_oopmaps, &_exception_handler_table,
179 &_implicit_exception_table, C1XCompiler::instance(), _env->comp_level(), false, false); 179 &_implicit_exception_table, C1XCompiler::instance(), _env->comp_level(), false, false);
180 180
181 } 181 }
182 182
183 // constructor used to create a stub 183 // constructor used to create a stub
184 CodeInstaller::CodeInstaller(oop target_method, jlong& id) { 184 CodeInstaller::CodeInstaller(Handle target_method, jlong& id) {
185 No_Safepoint_Verifier no_safepoint; 185 No_Safepoint_Verifier no_safepoint;
186 _env = CURRENT_ENV; 186 _env = CURRENT_ENV;
187 187
188 initialize_fields(target_method); 188 initialize_fields(target_method);
189 assert(_hotspot_method == NULL && _name != NULL, "installMethod needs NON-NULL name and NULL method"); 189 assert(_hotspot_method == NULL && _name != NULL, "installMethod needs NON-NULL name and NULL method");
196 BufferBlob* blob = BufferBlob::create(strdup(cname), &buffer); // this is leaking strings... but only a limited number of stubs will be created 196 BufferBlob* blob = BufferBlob::create(strdup(cname), &buffer); // this is leaking strings... but only a limited number of stubs will be created
197 IF_TRACE_C1X_3 Disassembler::decode((CodeBlob*) blob); 197 IF_TRACE_C1X_3 Disassembler::decode((CodeBlob*) blob);
198 id = VmIds::addStub(blob->code_begin()); 198 id = VmIds::addStub(blob->code_begin());
199 } 199 }
200 200
201 void CodeInstaller::initialize_fields(oop target_method) { 201 void CodeInstaller::initialize_fields(Handle target_method) {
202 _citarget_method = HotSpotTargetMethod::targetMethod(target_method); 202 _citarget_method = HotSpotTargetMethod::targetMethod(target_method);
203 _hotspot_method = HotSpotTargetMethod::method(target_method); 203 _hotspot_method = HotSpotTargetMethod::method(target_method);
204 _name = HotSpotTargetMethod::name(target_method); 204 _name = HotSpotTargetMethod::name(target_method);
205 _sites = (arrayOop) HotSpotTargetMethod::sites(target_method); 205 _sites = (arrayOop) HotSpotTargetMethod::sites(target_method);
206 _exception_handlers = (arrayOop) HotSpotTargetMethod::exceptionHandlers(target_method); 206 _exception_handlers = (arrayOop) HotSpotTargetMethod::exceptionHandlers(target_method);
207 207
208 _code = (arrayOop) CiTargetMethod::targetCode(_citarget_method); 208 _code = (arrayOop) CiTargetMethod::targetCode(_citarget_method);
209 _code_size = CiTargetMethod::targetCodeSize(_citarget_method); 209 _code_size = CiTargetMethod::targetCodeSize(_citarget_method);
210 _frame_size = CiTargetMethod::frameSize(_citarget_method); 210 _frame_size = CiTargetMethod::frameSize(_citarget_method);
211 _custom_stack_area_offset = CiTargetMethod::customStackAreaOffset(_citarget_method);
212
211 213
212 // (very) conservative estimate: each site needs a constant section entry 214 // (very) conservative estimate: each site needs a constant section entry
213 _constants_size = _sites->length() * BytesPerLong; 215 _constants_size = _sites->length() * BytesPerLong;
214 _total_size = align_size_up(_code_size, HeapWordSize) + _constants_size; 216 _total_size = align_size_up(_code_size, HeapWordSize) + _constants_size;
215 217