1 /*
2 * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
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 *
1103 r->fix_oop_relocation();
1104 found = true;
1105 } else if (mds.type() == relocInfo::metadata_type) {
1106 assert(stub_id == Runtime1::load_klass_patching_id, "wrong stub id");
1107 metadata_Relocation* r = mds.metadata_reloc();
1108 Metadata** metadata_adr = r->metadata_addr();
1109 *metadata_adr = load_klass();
1110 r->fix_metadata_relocation();
1111 found = true;
1112 }
1113 }
1114 assert(found, "the metadata must exist!");
1115 }
1116 #endif
1117 if (do_patch) {
1118 // replace instructions
1119 // first replace the tail, then the call
1120 #ifdef ARM
1121 if((load_klass_or_mirror_patch_id ||
1122 stub_id == Runtime1::load_appendix_patching_id) &&
1123 !VM_Version::supports_movw()) {
1124 nmethod* nm = CodeCache::find_nmethod(instr_pc);
1125 address addr = NULL;
1126 assert(nm != NULL, "invalid nmethod_pc");
1127 RelocIterator mds(nm, copy_buff, copy_buff + 1);
1128 while (mds.next()) {
1129 if (mds.type() == relocInfo::oop_type) {
1130 assert(stub_id == Runtime1::load_mirror_patching_id ||
1131 stub_id == Runtime1::load_appendix_patching_id, "wrong stub id");
1132 oop_Relocation* r = mds.oop_reloc();
1133 addr = (address)r->oop_addr();
1134 break;
1135 } else if (mds.type() == relocInfo::metadata_type) {
1136 assert(stub_id == Runtime1::load_klass_patching_id, "wrong stub id");
1137 metadata_Relocation* r = mds.metadata_reloc();
1138 addr = (address)r->metadata_addr();
1139 break;
1140 }
1141 }
1142 assert(addr != NULL, "metadata relocation must exist");
1143 copy_buff -= *byte_count;
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1 /*
2 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
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 *
1103 r->fix_oop_relocation();
1104 found = true;
1105 } else if (mds.type() == relocInfo::metadata_type) {
1106 assert(stub_id == Runtime1::load_klass_patching_id, "wrong stub id");
1107 metadata_Relocation* r = mds.metadata_reloc();
1108 Metadata** metadata_adr = r->metadata_addr();
1109 *metadata_adr = load_klass();
1110 r->fix_metadata_relocation();
1111 found = true;
1112 }
1113 }
1114 assert(found, "the metadata must exist!");
1115 }
1116 #endif
1117 if (do_patch) {
1118 // replace instructions
1119 // first replace the tail, then the call
1120 #ifdef ARM
1121 if((load_klass_or_mirror_patch_id ||
1122 stub_id == Runtime1::load_appendix_patching_id) &&
1123 nativeMovConstReg_at(copy_buff)->is_pc_relative()) {
1124 nmethod* nm = CodeCache::find_nmethod(instr_pc);
1125 address addr = NULL;
1126 assert(nm != NULL, "invalid nmethod_pc");
1127 RelocIterator mds(nm, copy_buff, copy_buff + 1);
1128 while (mds.next()) {
1129 if (mds.type() == relocInfo::oop_type) {
1130 assert(stub_id == Runtime1::load_mirror_patching_id ||
1131 stub_id == Runtime1::load_appendix_patching_id, "wrong stub id");
1132 oop_Relocation* r = mds.oop_reloc();
1133 addr = (address)r->oop_addr();
1134 break;
1135 } else if (mds.type() == relocInfo::metadata_type) {
1136 assert(stub_id == Runtime1::load_klass_patching_id, "wrong stub id");
1137 metadata_Relocation* r = mds.metadata_reloc();
1138 addr = (address)r->metadata_addr();
1139 break;
1140 }
1141 }
1142 assert(addr != NULL, "metadata relocation must exist");
1143 copy_buff -= *byte_count;
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