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 "opto/c2_MacroAssembler.hpp"
27 #include "opto/c2_CodeStubs.hpp"
28 #include "runtime/sharedRuntime.hpp"
29 #include "runtime/stubRoutines.hpp"
30
31 #define __ masm.
32
33 int C2SafepointPollStub::max_size() const {
34 return 20;
35 }
36
37 void C2SafepointPollStub::emit(C2_MacroAssembler& masm) {
38 assert(SharedRuntime::polling_page_return_handler_blob() != NULL,
39 "polling page return stub not created yet");
40 address stub = SharedRuntime::polling_page_return_handler_blob()->entry_point();
41
42 RuntimeAddress callback_addr(stub);
43
44 __ bind(entry());
45 InternalAddress safepoint_pc(masm.pc() - masm.offset() + _safepoint_offset);
46 __ adr(rscratch1, safepoint_pc);
47 __ str(rscratch1, Address(rthread, JavaThread::saved_exception_pc_offset()));
48 __ far_jump(callback_addr);
49 }
50
51 int C2EntryBarrierStub::max_size() const {
52 return 24;
53 }
54
55 void C2EntryBarrierStub::emit(C2_MacroAssembler& masm) {
56 __ bind(entry());
57 __ movptr(rscratch1, (uintptr_t) StubRoutines::aarch64::method_entry_barrier());
58 __ blr(rscratch1);
59 __ b(continuation());
60
61 __ bind(guard());
62 __ relocate(entry_guard_Relocation::spec());
63 __ emit_int32(0); // nmethod guard value
64 }
65
66 #undef __
|
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 "opto/c2_MacroAssembler.hpp"
27 #include "opto/c2_CodeStubs.hpp"
28 #include "runtime/objectMonitor.hpp"
29 #include "runtime/sharedRuntime.hpp"
30 #include "runtime/stubRoutines.hpp"
31
32 #define __ masm.
33
34 int C2SafepointPollStub::max_size() const {
35 return 20;
36 }
37
38 void C2SafepointPollStub::emit(C2_MacroAssembler& masm) {
39 assert(SharedRuntime::polling_page_return_handler_blob() != NULL,
40 "polling page return stub not created yet");
41 address stub = SharedRuntime::polling_page_return_handler_blob()->entry_point();
42
43 RuntimeAddress callback_addr(stub);
44
45 __ bind(entry());
46 InternalAddress safepoint_pc(masm.pc() - masm.offset() + _safepoint_offset);
47 __ adr(rscratch1, safepoint_pc);
48 __ str(rscratch1, Address(rthread, JavaThread::saved_exception_pc_offset()));
49 __ far_jump(callback_addr);
50 }
51
52 int C2EntryBarrierStub::max_size() const {
53 return 24;
54 }
55
56 void C2EntryBarrierStub::emit(C2_MacroAssembler& masm) {
57 __ bind(entry());
58 __ movptr(rscratch1, (uintptr_t) StubRoutines::aarch64::method_entry_barrier());
59 __ blr(rscratch1);
60 __ b(continuation());
61
62 __ bind(guard());
63 __ relocate(entry_guard_Relocation::spec());
64 __ emit_int32(0); // nmethod guard value
65 }
66
67 int C2CheckLockStackStub::max_size() const {
68 return 20;
69 }
70
71 void C2CheckLockStackStub::emit(C2_MacroAssembler& masm) {
72 __ bind(entry());
73 assert(StubRoutines::aarch64::check_lock_stack() != NULL, "need runtime call stub");
74 __ far_call(StubRoutines::aarch64::check_lock_stack());
75 __ b(continuation());
76 }
77
78 int C2LoadNKlassStub::max_size() const {
79 return 8;
80 }
81
82 void C2LoadNKlassStub::emit(C2_MacroAssembler& masm) {
83 __ bind(entry());
84 Register d = dst();
85 __ ldr(d, Address(d, OM_OFFSET_NO_MONITOR_VALUE_TAG(header)));
86 __ b(continuation());
87 }
88
89 #undef __
|