1 /*
2 * Copyright (c) 2003, 2010, 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 *
36 int compressed_line_number_size,
37 int local_variable_table_length,
38 int checked_exceptions_length) {
39 int extra_bytes = code_size;
40 if (compressed_line_number_size > 0) {
41 extra_bytes += compressed_line_number_size;
42 }
43 if (checked_exceptions_length > 0) {
44 extra_bytes += sizeof(u2);
45 extra_bytes += checked_exceptions_length * sizeof(CheckedExceptionElement);
46 }
47 if (local_variable_table_length > 0) {
48 extra_bytes += sizeof(u2);
49 extra_bytes +=
50 local_variable_table_length * sizeof(LocalVariableTableElement);
51 }
52 int extra_words = align_size_up(extra_bytes, BytesPerWord) / BytesPerWord;
53 return align_object_size(header_size() + extra_words);
54 }
55
56
57 // linenumber table - note that length is unknown until decompression,
58 // see class CompressedLineNumberReadStream.
59
60 u_char* constMethodOopDesc::compressed_linenumber_table() const {
61 // Located immediately following the bytecodes.
62 assert(has_linenumber_table(), "called only if table is present");
63 return code_end();
64 }
65
66 u2* constMethodOopDesc::checked_exceptions_length_addr() const {
67 // Located at the end of the constMethod.
68 assert(has_checked_exceptions(), "called only if table is present");
69 return last_u2_element();
70 }
71
72 u2* constMethodOopDesc::localvariable_table_length_addr() const {
73 assert(has_localvariable_table(), "called only if table is present");
74 if (has_checked_exceptions()) {
75 // If checked_exception present, locate immediately before them.
|
1 /*
2 * Copyright (c) 2003, 2012, 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 *
36 int compressed_line_number_size,
37 int local_variable_table_length,
38 int checked_exceptions_length) {
39 int extra_bytes = code_size;
40 if (compressed_line_number_size > 0) {
41 extra_bytes += compressed_line_number_size;
42 }
43 if (checked_exceptions_length > 0) {
44 extra_bytes += sizeof(u2);
45 extra_bytes += checked_exceptions_length * sizeof(CheckedExceptionElement);
46 }
47 if (local_variable_table_length > 0) {
48 extra_bytes += sizeof(u2);
49 extra_bytes +=
50 local_variable_table_length * sizeof(LocalVariableTableElement);
51 }
52 int extra_words = align_size_up(extra_bytes, BytesPerWord) / BytesPerWord;
53 return align_object_size(header_size() + extra_words);
54 }
55
56 methodOop constMethodOopDesc::method() const {
57 return instanceKlass::cast(_constants->pool_holder())->method_with_idnum(
58 _method_idnum);
59 }
60
61 // linenumber table - note that length is unknown until decompression,
62 // see class CompressedLineNumberReadStream.
63
64 u_char* constMethodOopDesc::compressed_linenumber_table() const {
65 // Located immediately following the bytecodes.
66 assert(has_linenumber_table(), "called only if table is present");
67 return code_end();
68 }
69
70 u2* constMethodOopDesc::checked_exceptions_length_addr() const {
71 // Located at the end of the constMethod.
72 assert(has_checked_exceptions(), "called only if table is present");
73 return last_u2_element();
74 }
75
76 u2* constMethodOopDesc::localvariable_table_length_addr() const {
77 assert(has_localvariable_table(), "called only if table is present");
78 if (has_checked_exceptions()) {
79 // If checked_exception present, locate immediately before them.
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