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src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp@d1605aabd0a1 (annotated)
src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp
Wed, 02 Jul 2008 12:55:16 -0700
- author
- xdono
- date
- Wed, 02 Jul 2008 12:55:16 -0700
- changeset 631
- d1605aabd0a1
- parent 542
- 93b6525e3b82
- child 1907
- c18cbe5936b8
- permissions
- -rw-r--r--
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
| duke@435 | 1 | /* |
| xdono@631 | 2 | * Copyright 2003-2008 Sun Microsystems, Inc. All Rights Reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| duke@435 | 21 | * have any questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| duke@435 | 25 | #include "incls/_precompiled.incl" |
| duke@435 | 26 | #include "incls/_thread_solaris_x86.cpp.incl" |
| duke@435 | 27 | |
| duke@435 | 28 | // For Forte Analyzer AsyncGetCallTrace profiling support - thread is |
| duke@435 | 29 | // currently interrupted by SIGPROF |
| duke@435 | 30 | bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr, |
| duke@435 | 31 | void* ucontext, bool isInJava) { |
| duke@435 | 32 | |
| duke@435 | 33 | assert(Thread::current() == this, "caller must be current thread"); |
| duke@435 | 34 | assert(this->is_Java_thread(), "must be JavaThread"); |
| duke@435 | 35 | JavaThread* jt = (JavaThread *)this; |
| duke@435 | 36 | |
| sgoldman@542 | 37 | // last_Java_frame is always walkable and safe use it if we have it |
| sgoldman@542 | 38 | |
| duke@435 | 39 | if (jt->has_last_Java_frame()) { |
| duke@435 | 40 | *fr_addr = jt->pd_last_frame(); |
| duke@435 | 41 | return true; |
| duke@435 | 42 | } |
| duke@435 | 43 | |
| sgoldman@542 | 44 | ucontext_t* uc = (ucontext_t*) ucontext; |
| duke@435 | 45 | |
| sgoldman@542 | 46 | // We always want to use the initial frame we create from the ucontext as |
| sgoldman@542 | 47 | // it certainly signals where we currently are. However that frame may not |
| sgoldman@542 | 48 | // be safe for calling sender. In that case if we have a last_Java_frame |
| sgoldman@542 | 49 | // then the forte walker will switch to that frame as the virtual sender |
| sgoldman@542 | 50 | // for the frame we create here which is not sender safe. |
| duke@435 | 51 | |
| sgoldman@542 | 52 | intptr_t* ret_fp; |
| sgoldman@542 | 53 | intptr_t* ret_sp; |
| sgoldman@542 | 54 | ExtendedPC addr = os::Solaris::fetch_frame_from_ucontext(this, uc, &ret_sp, &ret_fp); |
| sgoldman@542 | 55 | |
| sgoldman@542 | 56 | // Something would really have to be screwed up to get a NULL pc |
| sgoldman@542 | 57 | |
| sgoldman@542 | 58 | if (addr.pc() == NULL ) { |
| sgoldman@542 | 59 | assert(false, "NULL pc from signal handler!"); |
| sgoldman@542 | 60 | return false; |
| sgoldman@542 | 61 | |
| duke@435 | 62 | } |
| duke@435 | 63 | |
| sgoldman@542 | 64 | // If sp and fp are nonsense just leave them out |
| sgoldman@542 | 65 | |
| sgoldman@542 | 66 | if ((address)ret_sp >= jt->stack_base() || |
| sgoldman@542 | 67 | (address)ret_sp < jt->stack_base() - jt->stack_size() ) { |
| sgoldman@542 | 68 | |
| sgoldman@542 | 69 | ret_sp = NULL; |
| sgoldman@542 | 70 | ret_fp = NULL; |
| sgoldman@542 | 71 | } else { |
| sgoldman@542 | 72 | |
| sgoldman@542 | 73 | // sp is reasonable is fp reasonable? |
| sgoldman@542 | 74 | if ( (address)ret_fp >= jt->stack_base() || ret_fp < ret_sp) { |
| sgoldman@542 | 75 | ret_fp = NULL; |
| sgoldman@542 | 76 | } |
| sgoldman@542 | 77 | } |
| sgoldman@542 | 78 | |
| sgoldman@542 | 79 | frame ret_frame(ret_sp, ret_fp, addr.pc()); |
| sgoldman@542 | 80 | |
| sgoldman@542 | 81 | *fr_addr = ret_frame; |
| sgoldman@542 | 82 | return true; |
| sgoldman@542 | 83 | |
| duke@435 | 84 | } |
