Mercurial > hg > graal-compiler
annotate ASSEMBLY_EXCEPTION @ 3293:1f4413413144
7039089: G1: changeset for 7037276 broke heap verification, and related cleanups
Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp
author | ysr |
---|---|
date | Tue, 26 Apr 2011 21:17:24 -0700 |
parents | c18cbe5936b8 |
children |
rev | line source |
---|---|
0 | 1 |
2 OPENJDK ASSEMBLY EXCEPTION | |
3 | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
4 The OpenJDK source code made available by Oracle at openjdk.java.net and |
0 | 5 openjdk.dev.java.net ("OpenJDK Code") is distributed under the terms of the |
6 GNU General Public License <http://www.gnu.org/copyleft/gpl.html> version 2 | |
7 only ("GPL2"), with the following clarification and special exception. | |
8 | |
9 Linking this OpenJDK Code statically or dynamically with other code | |
10 is making a combined work based on this library. Thus, the terms | |
11 and conditions of GPL2 cover the whole combination. | |
12 | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
13 As a special exception, Oracle gives you permission to link this |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
14 OpenJDK Code with certain code licensed by Oracle as indicated at |
0 | 15 http://openjdk.java.net/legal/exception-modules-2007-05-08.html |
16 ("Designated Exception Modules") to produce an executable, | |
17 regardless of the license terms of the Designated Exception Modules, | |
18 and to copy and distribute the resulting executable under GPL2, | |
19 provided that the Designated Exception Modules continue to be | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 governed by the licenses under which they were offered by Oracle. |
0 | 21 |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
22 As such, it allows licensees and sublicensees of Oracle's GPL2 OpenJDK Code to |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
23 build an executable that includes those portions of necessary code that Oracle |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
24 could not provide under GPL2 (or that Oracle has provided under GPL2 with the |
0 | 25 Classpath exception). If you modify or add to the OpenJDK code, that new |
26 GPL2 code may still be combined with Designated Exception Modules if the | |
27 new code is made subject to this exception by its copyright holder. |