1 /*
2 * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2016, 2017 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
1678
1679 // The method register is junk from after the thread_in_native transition
1680 // until here. Also can't call_VM until the bcp has been
1681 // restored. Need bcp for throwing exception below so get it now.
1682 __ get_method(Rmethod);
1683
1684 // Restore Z_bcp to have legal interpreter frame,
1685 // i.e., bci == 0 <=> Z_bcp == code_base().
1686 __ z_lg(Z_bcp, Address(Rmethod, Method::const_offset())); // get constMethod
1687 __ add2reg(Z_bcp, in_bytes(ConstMethod::codes_offset())); // get codebase
1688
1689 if (CheckJNICalls) {
1690 // clear_pending_jni_exception_check
1691 __ clear_mem(Address(Z_thread, JavaThread::pending_jni_exception_check_fn_offset()), sizeof(oop));
1692 }
1693
1694 // Check if the native method returns an oop, and if so, move it
1695 // from the jni handle to z_ijava_state.oop_temp. This is
1696 // necessary, because we reset the jni handle block below.
1697 // NOTE: frame::interpreter_frame_result() depends on this, too.
1698 { NearLabel no_oop_result;
1699 __ load_absolute_address(Z_R1, AbstractInterpreter::result_handler(T_OBJECT));
1700 __ compareU64_and_branch(Z_R1, Rresult_handler, Assembler::bcondNotEqual, no_oop_result);
1701 __ resolve_jobject(Rlresult, /* tmp1 */ Rmethod, /* tmp2 */ Z_R1);
1702 __ z_stg(Rlresult, oop_tmp_offset, Z_fp);
1703 __ bind(no_oop_result);
1704 }
1705
1706 // Reset handle block.
1707 __ z_lg(Z_R1/*active_handles*/, thread_(active_handles));
1708 __ clear_mem(Address(Z_R1, JNIHandleBlock::top_offset_in_bytes()), 4);
1709
1710 // Bandle exceptions (exception handling will handle unlocking!).
1711 {
1712 Label L;
1713 __ load_and_test_long(Z_R0/*pending_exception*/, thread_(pending_exception));
1714 __ z_bre(L);
1715 __ MacroAssembler::call_VM(noreg,
1716 CAST_FROM_FN_PTR(address,
1717 InterpreterRuntime::throw_pending_exception));
1718 __ should_not_reach_here();
1719 __ bind(L);
1720 }
1721
1722 if (synchronized) {
|
1 /*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2016 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
1678
1679 // The method register is junk from after the thread_in_native transition
1680 // until here. Also can't call_VM until the bcp has been
1681 // restored. Need bcp for throwing exception below so get it now.
1682 __ get_method(Rmethod);
1683
1684 // Restore Z_bcp to have legal interpreter frame,
1685 // i.e., bci == 0 <=> Z_bcp == code_base().
1686 __ z_lg(Z_bcp, Address(Rmethod, Method::const_offset())); // get constMethod
1687 __ add2reg(Z_bcp, in_bytes(ConstMethod::codes_offset())); // get codebase
1688
1689 if (CheckJNICalls) {
1690 // clear_pending_jni_exception_check
1691 __ clear_mem(Address(Z_thread, JavaThread::pending_jni_exception_check_fn_offset()), sizeof(oop));
1692 }
1693
1694 // Check if the native method returns an oop, and if so, move it
1695 // from the jni handle to z_ijava_state.oop_temp. This is
1696 // necessary, because we reset the jni handle block below.
1697 // NOTE: frame::interpreter_frame_result() depends on this, too.
1698 { NearLabel no_oop_result, store_oop_result;
1699 __ load_absolute_address(Z_R1, AbstractInterpreter::result_handler(T_OBJECT));
1700 __ compareU64_and_branch(Z_R1, Rresult_handler, Assembler::bcondNotEqual, no_oop_result);
1701 __ compareU64_and_branch(Rlresult, (intptr_t)0L, Assembler::bcondEqual, store_oop_result);
1702 __ z_lg(Rlresult, 0, Rlresult); // unbox
1703 __ bind(store_oop_result);
1704 __ z_stg(Rlresult, oop_tmp_offset, Z_fp);
1705 __ verify_oop(Rlresult);
1706 __ bind(no_oop_result);
1707 }
1708
1709 // Reset handle block.
1710 __ z_lg(Z_R1/*active_handles*/, thread_(active_handles));
1711 __ clear_mem(Address(Z_R1, JNIHandleBlock::top_offset_in_bytes()), 4);
1712
1713 // Bandle exceptions (exception handling will handle unlocking!).
1714 {
1715 Label L;
1716 __ load_and_test_long(Z_R0/*pending_exception*/, thread_(pending_exception));
1717 __ z_bre(L);
1718 __ MacroAssembler::call_VM(noreg,
1719 CAST_FROM_FN_PTR(address,
1720 InterpreterRuntime::throw_pending_exception));
1721 __ should_not_reach_here();
1722 __ bind(L);
1723 }
1724
1725 if (synchronized) {
|