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 33;
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 #ifdef _LP64
47 __ lea(rscratch1, safepoint_pc);
55 __ lea(tmp1, safepoint_pc);
56 __ get_thread(tmp2);
57 __ movptr(Address(tmp2, JavaThread::saved_exception_pc_offset()), tmp1);
58
59 __ pop(tmp2);
60 __ pop(tmp1);
61 #endif
62 __ jump(callback_addr);
63 }
64
65 int C2EntryBarrierStub::max_size() const {
66 return 10;
67 }
68
69 void C2EntryBarrierStub::emit(C2_MacroAssembler& masm) {
70 __ bind(entry());
71 __ call(RuntimeAddress(StubRoutines::x86::method_entry_barrier()));
72 __ jmp(continuation(), false /* maybe_short */);
73 }
74
75 #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 33;
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 #ifdef _LP64
48 __ lea(rscratch1, safepoint_pc);
56 __ lea(tmp1, safepoint_pc);
57 __ get_thread(tmp2);
58 __ movptr(Address(tmp2, JavaThread::saved_exception_pc_offset()), tmp1);
59
60 __ pop(tmp2);
61 __ pop(tmp1);
62 #endif
63 __ jump(callback_addr);
64 }
65
66 int C2EntryBarrierStub::max_size() const {
67 return 10;
68 }
69
70 void C2EntryBarrierStub::emit(C2_MacroAssembler& masm) {
71 __ bind(entry());
72 __ call(RuntimeAddress(StubRoutines::x86::method_entry_barrier()));
73 __ jmp(continuation(), false /* maybe_short */);
74 }
75
76 int C2CheckLockStackStub::max_size() const {
77 return 10;
78 }
79
80 void C2CheckLockStackStub::emit(C2_MacroAssembler& masm) {
81 __ bind(entry());
82 assert(StubRoutines::x86::check_lock_stack() != NULL, "need runtime call stub");
83 __ call(RuntimeAddress(StubRoutines::x86::check_lock_stack()));
84 __ jmp(continuation(), false /* maybe_short */);
85 }
86
87 #ifdef _LP64
88 int C2LoadNKlassStub::max_size() const {
89 return 10;
90 }
91
92 void C2LoadNKlassStub::emit(C2_MacroAssembler& masm) {
93 __ bind(entry());
94 Register d = dst();
95 __ movq(d, Address(d, OM_OFFSET_NO_MONITOR_VALUE_TAG(header)));
96 __ jmp(continuation());
97 }
98 #endif
99
100 #undef __
|