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annotate src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp @ 8654:3bbad4ec6510
new phase: PushNodesThroughPi
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Thu, 04 Apr 2013 16:03:08 +0200 |
parents | f34d701e952e |
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rev | line source |
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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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "runtime/frame.inline.hpp" | |
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27 #include "runtime/thread.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 JavaThread* jt = (JavaThread *)this; | |
37 | |
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38 // last_Java_frame is always walkable and safe use it if we have it |
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39 |
0 | 40 if (jt->has_last_Java_frame()) { |
41 *fr_addr = jt->pd_last_frame(); | |
42 return true; | |
43 } | |
44 | |
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45 ucontext_t* uc = (ucontext_t*) ucontext; |
0 | 46 |
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47 // We always want to use the initial frame we create from the ucontext as |
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48 // it certainly signals where we currently are. However that frame may not |
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49 // be safe for calling sender. In that case if we have a last_Java_frame |
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50 // then the forte walker will switch to that frame as the virtual sender |
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51 // for the frame we create here which is not sender safe. |
0 | 52 |
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53 intptr_t* ret_fp; |
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54 intptr_t* ret_sp; |
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55 ExtendedPC addr = os::Solaris::fetch_frame_from_ucontext(this, uc, &ret_sp, &ret_fp); |
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56 |
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57 // Something would really have to be screwed up to get a NULL pc |
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58 |
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59 if (addr.pc() == NULL ) { |
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60 assert(false, "NULL pc from signal handler!"); |
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61 return false; |
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62 |
0 | 63 } |
64 | |
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65 // If sp and fp are nonsense just leave them out |
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66 |
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67 if ((address)ret_sp >= jt->stack_base() || |
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68 (address)ret_sp < jt->stack_base() - jt->stack_size() ) { |
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69 |
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70 ret_sp = NULL; |
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71 ret_fp = NULL; |
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72 } else { |
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73 |
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74 // sp is reasonable is fp reasonable? |
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75 if ( (address)ret_fp >= jt->stack_base() || ret_fp < ret_sp) { |
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76 ret_fp = NULL; |
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77 } |
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78 } |
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79 |
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80 frame ret_frame(ret_sp, ret_fp, addr.pc()); |
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81 |
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82 *fr_addr = ret_frame; |
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83 return true; |
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84 |
0 | 85 } |
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86 |
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87 void JavaThread::cache_global_variables() { } |
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88 |