Mercurial > hg > truffle
annotate src/os_cpu/windows_x86/vm/thread_windows_x86.cpp @ 4837:eff609af17d7
7127706: G1: re-enable survivors during the initial-mark pause
Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned.
Reviewed-by: brutisso, johnc
| author | tonyp |
|---|---|
| date | Wed, 25 Jan 2012 12:58:23 -0500 |
| parents | f95d63e2154a |
| children | f34d701e952e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "runtime/frame.inline.hpp" | |
| 27 #include "thread_windows.inline.hpp" | |
| 0 | 28 |
| 29 // For Forte Analyzer AsyncGetCallTrace profiling support - thread is | |
| 30 // currently interrupted by SIGPROF | |
| 31 bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr, | |
| 32 void* ucontext, bool isInJava) { | |
| 33 | |
| 34 assert(Thread::current() == this, "caller must be current thread"); | |
| 35 assert(this->is_Java_thread(), "must be JavaThread"); | |
| 36 | |
| 37 JavaThread* jt = (JavaThread *)this; | |
| 38 | |
| 39 // If we have a last_Java_frame, then we should use it even if | |
| 40 // isInJava == true. It should be more reliable than CONTEXT info. | |
| 41 if (jt->has_last_Java_frame()) { | |
| 42 *fr_addr = jt->pd_last_frame(); | |
| 43 return true; | |
| 44 } | |
| 45 | |
| 46 // At this point, we don't have a last_Java_frame, so | |
| 47 // we try to glean some information out of the CONTEXT | |
| 48 // if we were running Java code when SIGPROF came in. | |
| 49 if (isInJava) { | |
| 50 CONTEXT* uc = (CONTEXT*)ucontext; | |
| 51 | |
| 52 #ifdef AMD64 | |
| 53 intptr_t* ret_fp = (intptr_t*) uc->Rbp; | |
| 54 intptr_t* ret_sp = (intptr_t*) uc->Rsp; | |
| 55 ExtendedPC addr = ExtendedPC((address)uc->Rip); | |
| 56 #else | |
| 57 intptr_t* ret_fp = (intptr_t*) uc->Ebp; | |
| 58 intptr_t* ret_sp = (intptr_t*) uc->Esp; | |
| 59 ExtendedPC addr = ExtendedPC((address)uc->Eip); | |
| 60 #endif // AMD64 | |
| 61 if (addr.pc() == NULL || ret_sp == NULL ) { | |
| 62 // CONTEXT wasn't useful | |
| 63 return false; | |
| 64 } | |
| 65 | |
| 66 frame ret_frame(ret_sp, ret_fp, addr.pc()); | |
| 67 if (!ret_frame.safe_for_sender(jt)) { | |
| 68 #ifdef COMPILER2 | |
| 69 // C2 uses ebp as a general register see if NULL fp helps | |
| 70 frame ret_frame2(ret_sp, NULL, addr.pc()); | |
| 71 if (!ret_frame2.safe_for_sender(jt)) { | |
| 72 // nothing else to try if the frame isn't good | |
| 73 return false; | |
| 74 } | |
| 75 ret_frame = ret_frame2; | |
| 76 #else | |
| 77 // nothing else to try if the frame isn't good | |
| 78 return false; | |
| 79 #endif /* COMPILER2 */ | |
| 80 } | |
| 81 *fr_addr = ret_frame; | |
| 82 return true; | |
| 83 } | |
| 84 | |
| 85 // nothing else to try | |
| 86 return false; | |
| 87 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
88 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
89 void JavaThread::cache_global_variables() { } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
90 |