195
196 // method (rbx): Method*
197 // rcx: receiver
198
199 #ifdef ASSERT
200 if (DebugVtables) {
201 Label L1;
202 __ cmpptr(method, (int32_t)NULL_WORD);
203 __ jcc(Assembler::equal, L1);
204 __ cmpptr(Address(method, Method::from_compiled_offset()), (int32_t)NULL_WORD);
205 __ jcc(Assembler::notZero, L1);
206 __ stop("Method* is null");
207 __ bind(L1);
208 }
209 #endif // ASSERT
210
211 address ame_addr = __ pc();
212 __ jmp(Address(method, Method::from_compiled_offset()));
213
214 __ bind(L_no_such_interface);
215 __ jump(RuntimeAddress(StubRoutines::throw_IncompatibleClassChangeError_entry()));
216
217 __ flush();
218
219 if (PrintMiscellaneous && (WizardMode || Verbose)) {
220 tty->print_cr("itable #%d at " PTR_FORMAT "[%d] left over: %d",
221 itable_index, p2i(s->entry_point()),
222 (int)(s->code_end() - s->entry_point()),
223 (int)(s->code_end() - __ pc()));
224 }
225 guarantee(__ pc() <= s->code_end(), "overflowed buffer");
226 // shut the door on sizing bugs
227 int slop = 3; // 32-bit offset is this much larger than an 8-bit one
228 assert(itable_index > 10 || __ pc() + slop <= s->code_end(), "room for 32-bit offset");
229
230 s->set_exception_points(npe_addr, ame_addr);
231 return s;
232 }
233
234
235
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195
196 // method (rbx): Method*
197 // rcx: receiver
198
199 #ifdef ASSERT
200 if (DebugVtables) {
201 Label L1;
202 __ cmpptr(method, (int32_t)NULL_WORD);
203 __ jcc(Assembler::equal, L1);
204 __ cmpptr(Address(method, Method::from_compiled_offset()), (int32_t)NULL_WORD);
205 __ jcc(Assembler::notZero, L1);
206 __ stop("Method* is null");
207 __ bind(L1);
208 }
209 #endif // ASSERT
210
211 address ame_addr = __ pc();
212 __ jmp(Address(method, Method::from_compiled_offset()));
213
214 __ bind(L_no_such_interface);
215 // Handle IncompatibleClassChangeError in itable stubs.
216 // More detailed error message.
217 // We force resolving of the call site by jumping to the "handle
218 // wrong method" stub, and so let the interpreter runtime do all the
219 // dirty work.
220 __ jump(RuntimeAddress( SharedRuntime::get_handle_wrong_method_stub( ) ));
221
222 __ flush();
223
224 if (PrintMiscellaneous && (WizardMode || Verbose)) {
225 tty->print_cr("itable #%d at " PTR_FORMAT "[%d] left over: %d",
226 itable_index, p2i(s->entry_point()),
227 (int)(s->code_end() - s->entry_point()),
228 (int)(s->code_end() - __ pc()));
229 }
230 guarantee(__ pc() <= s->code_end(), "overflowed buffer");
231 // shut the door on sizing bugs
232 int slop = 3; // 32-bit offset is this much larger than an 8-bit one
233 assert(itable_index > 10 || __ pc() + slop <= s->code_end(), "room for 32-bit offset");
234
235 s->set_exception_points(npe_addr, ame_addr);
236 return s;
237 }
238
239
240
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