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 */
23 package jdk.vm.ci.hotspot;
24
25 import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
26
27 import jdk.vm.ci.code.InstalledCode;
28 import jdk.vm.ci.inittimer.SuppressFBWarnings;
29 import sun.misc.Unsafe;
30
31 /**
32 * Implementation of {@link InstalledCode} for HotSpot.
33 */
34 public abstract class HotSpotInstalledCode extends InstalledCode {
35
36 /**
37 * Total size of the code blob.
38 */
39 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
40
41 /**
42 * Start address of the code.
43 */
44 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
45
46 /**
47 * Size of the code.
48 */
49 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
50
51 public HotSpotInstalledCode(String name) {
52 super(name);
53 }
54
55 /**
56 * @return the total size of this code blob
57 */
58 public int getSize() {
59 return size;
60 }
61
62 /**
63 * @return a copy of this code blob if it is {@linkplain #isValid() valid}, null otherwise.
64 */
65 public byte[] getBlob() {
66 if (!isValid()) {
67 return null;
68 }
69 byte[] blob = new byte[size];
70 UNSAFE.copyMemory(null, getAddress(), blob, Unsafe.ARRAY_BYTE_BASE_OFFSET, size);
71 return blob;
72 }
73
74 @Override
75 public abstract String toString();
76
77 @Override
78 public long getStart() {
79 return codeStart;
80 }
81
82 @Override
83 public long getCodeSize() {
84 return codeSize;
85 }
86
87 @Override
88 public byte[] getCode() {
89 if (!isValid()) {
90 return null;
91 }
92 byte[] code = new byte[codeSize];
93 UNSAFE.copyMemory(null, codeStart, code, Unsafe.ARRAY_BYTE_BASE_OFFSET, codeSize);
94 return code;
95 }
96 }
|
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 */
23 package jdk.vm.ci.hotspot;
24
25 import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
26 import jdk.vm.ci.code.InstalledCode;
27 import jdk.vm.ci.inittimer.SuppressFBWarnings;
28 import sun.misc.Unsafe;
29
30 /**
31 * Implementation of {@link InstalledCode} for HotSpot.
32 */
33 public abstract class HotSpotInstalledCode extends InstalledCode {
34
35 /**
36 * Total size of the code blob.
37 */
38 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
39
40 /**
41 * Start address of the code.
42 */
43 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
44
45 /**
46 * Size of the code.
47 */
48 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
49
50 public HotSpotInstalledCode(String name) {
51 super(name);
52 }
53
54 /**
55 * @return the total size of this code blob
56 */
57 public int getSize() {
58 return size;
59 }
60
61 @Override
62 public abstract String toString();
63
64 @Override
65 public long getStart() {
66 return codeStart;
67 }
68
69 public long getCodeSize() {
70 return codeSize;
71 }
72
73 @Override
74 public byte[] getCode() {
75 if (!isValid()) {
76 return null;
77 }
78 byte[] code = new byte[codeSize];
79 UNSAFE.copyMemory(null, codeStart, code, Unsafe.ARRAY_BYTE_BASE_OFFSET, codeSize);
80 return code;
81 }
82 }
|